Air Products and Chemicals (APD) 424B2Prospectus for primary offering

Filed Pursuant to Rule 424(b)(2)
Registration No. 333-221729

CALCULATION OF REGISTRATION FEE

Prospectus Supplement

(To prospectus dated November 22, 2017)

€1,000,000,000

Air Products and Chemicals, Inc.

€500,000,000 0.500% Notes due 2028

€500,000,000 0.800% Notes due 2032

We are offering €500,000,000 aggregate principal amount of 0.500% Notes due 2028 (the “2028 Notes”) and €500,000,000 aggregate principal amount of 0.800% Notes due 2032 (the “2032 Notes” and together with the 2028 Notes, the “Notes”). The 2028 Notes will mature on May 5, 2028 and the 2032 Notes will mature on May 5, 2032. We will pay interest on the Notes on May 5 of each year, beginning on May 5, 2021. We may redeem the Notes prior to their maturity, in whole or in part, as described in this prospectus supplement. We may also redeem all, but not part, of the Notes at a price equal to 100% of the principal amount plus accrued and unpaid interest upon the occurrence of certain changes in U.S. tax law, as described in this prospectus supplement under “Description of Notes – Redemption for Tax Reasons.” In addition, if a change of control triggering event occurs as described under “Description of Notes—Change of Control and Ratings Decline,” we will be required to offer to purchase the relevant series of Notes from their holders at a purchase price equal to 101% of the principal amount thereof plus accrued and unpaid interest to, but excluding, the purchase date. The Notes will be issued in book-entry form only, in minimum denominations of €100,000 and integral multiples of €1,000 in excess thereof.

The Notes of each series are new issues of securities with no established trading market. We intend to apply to list the Notes on the New York Stock Exchange (the “NYSE”), and we expect trading in the Notes on the NYSE to begin within 30 days after the initial issuance of the Notes. We will have no obligation to maintain the listing of the Notes, and we may delist any series of Notes at any time.

Investing in these Notes involves risks. See “Risk Factors” on pageS-4 of this prospectus supplement, as well as the sections entitled “Risk Factors” in our Annual Report on Form10-K for the year ended September 30, 2019 and in our Quarterly Report on Form10-Q for the quarter ended March 31, 2020.

Neither the Securities and Exchange Commission (the “SEC”) nor any state securities commission has approved or disapproved of the Notes or determined if this prospectus supplement or the accompanying prospectus is accurate or complete. Any representation to the contrary is a criminal offense.

The underwriters expect to deliver the Notes in book-entry form only through the facilities of the Euroclear System (“Euroclear”) and Clearstream Banking S.A. (“Clearstream”), on or about May 5, 2020, against payment in immediately available funds.

The date of this prospectus supplement is April 28, 2020.

TABLE OF CONTENTS

PROSPECTUS SUPPLEMENT

PROSPECTUS

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ABOUT THIS PROSPECTUS SUPPLEMENT

This document is in two parts. The first part is this prospectus supplement, which describes the specific terms of this offering, the Notes and matters relating to us. The second part is the accompanying prospectus, which provides a more general description of the terms and conditions of the various securities we may offer under our registration statement, some of which does not apply to this offering or to the Notes. In this prospectus supplement and the accompanying prospectus, references to “Air Products,” the “Company,” “we,” “us” and “our” refer to Air Products and Chemicals, Inc. and, unless the context otherwise requires, its consolidated subsidiaries.

We have not, and the underwriters have not, authorized anyone to provide any information different or in addition to that contained or incorporated by reference in this prospectus supplement, the accompanying prospectus and in any free writing prospectus prepared by us or on our behalf to which we have referred you. We have not, and the underwriters have not, authorized any other person to provide you with different or additional information and we take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. We are not, and the underwriters are not, making an offer to sell the Notes in any jurisdiction where the offer or sale is not permitted. Further, you should assume that the information appearing in this prospectus supplement, the accompanying prospectus, and the documents incorporated by reference herein and therein, and any free writing prospectus, is accurate only as of the respective dates of those documents in which the information is contained. Our business, financial condition, results of operations and prospects may have changed since those dates.

It is important for you to read and consider carefully all information contained or incorporated by reference in this prospectus supplement, the accompanying prospectus and any permitted free writing prospectuses we have authorized for use with respect to this offering prior to making a decision to invest in the Notes. See “Where You Can Find More Information” for additional information.

References herein to “$,” “U.S. $,” “dollars” and “U.S. dollars” are to the lawful currency of the United States of America; and references to “€” and “euros” are to the lawful currency of the member states of the European Monetary Union that have adopted the euro as their currency. The financial information presented or incorporated by reference in this prospectus supplement and accompanying prospectus have been prepared, unless otherwise noted, in accordance with generally accepted accounting principles in the United States.

IN CONNECTION WITH THIS OFFER OF NOTES, MERRILL LYNCH INTERNATIONAL, AS STABILIZING MANAGER (OR ANY OTHER PERSON ACTING ON ITS BEHALF), MAY OVER-ALLOT NOTES OR EFFECT TRANSACTIONS WHICH STABILIZE OR MAINTAIN THE MARKET PRICE OF THE NOTES AT LEVELS WHICH MIGHT NOT OTHERWISE PREVAIL. THIS STABILIZING, IF COMMENCED, MAY BE DISCONTINUED AT ANY TIME AND WILL BE CARRIED OUT IN COMPLIANCE WITH ALL APPLICABLE LAWS AND RULES. ANY STABILIZATION ACTION MAY BEGIN ON OR AFTER THE DATE ON WHICH ADEQUATE PUBLIC DISCLOSURE OF THE TERMS OF THE OFFER OF THE NOTES IS MADE AND, IF BEGUN, MAY BE ENDED AT ANY TIME, BUT IT MUST END NO LATER THAN THE EARLIER OF 30 CALENDAR DAYS AFTER THE ISSUE DATE OF THE NOTES AND NO LATER THAN 60 DAYS AFTER THE DATE OF THE ALLOTMENT OF THE NOTES.

The distribution of this prospectus supplement and the accompanying prospectus do not constitute, and may not be used in connection with, an offer or solicitation by anyone in any jurisdiction in which such offer or solicitation is not authorized or in which the person making such offer or solicitation is not authorized or qualified to do so or to any person to whom it is unlawful to make such offer or solicitation. The Notes have been accepted for clearance through Euroclear and Clearstream and have been assigned Common Code No. 216612230 and International Security Identification Number (ISIN) XS2166122304 for the 2028 Notes and Common Code No. 216612248 and International Security Identification Number (ISIN) XS2166122486 for the 2032 Notes.

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Notice to Prospective Investors in the European Economic Area and the United Kingdom

PRIIPs Regulation/Prohibition of sales to EEA and UK retail investors. The Notes are not intended to be offered, sold or otherwise made available to, and should not be offered, sold or otherwise made available to, any retail investor in the European Economic Area (“EEA”) or the United Kingdom (“UK”). For these purposes, a retail investor means a person who is one (or more) of: (i) a retail client as defined in point (11) of Article 4(1) of Directive 2014/65/EU (as amended, “MiFID II”); or (ii) a customer within the meaning of Directive (EU) 2016/97 (as amended, the “Insurance Distribution Directive”), where that customer would not qualify as a professional client as defined in point (10) of Article 4(1) of MiFID II. Consequently no key information document required by Regulation (EU) No 1286/2014 (as amended, the “PRIIPs Regulation”) for offering or selling the Notes or otherwise making them available to retail investors in the EEA or the UK has been prepared, and, therefore, offering or selling the Notes or otherwise making them available to any retail investor in the EEA and the UK may be unlawful under the PRIIPs Regulation. For purposes of these provisions, “Prospectus Regulation” means Regulation 2017/1129/EU (as amended).

This prospectus supplement and the accompanying prospectus have been prepared on the basis that any offer of the Notes in any Member State of the EEA or the UK will be made pursuant to an exemption under the Prospectus Regulation, from the requirement to produce a prospectus for offers of Notes. Accordingly, any person making or intending to make any offer in a Member State of Notes which are the subject of the offering contemplated by this prospectus supplement and the accompanying prospectus may only do so in circumstances in which no obligation arises for us or any of the underwriters to produce a prospectus pursuant to Article 3 of the Prospectus Regulation or supplement a prospectus pursuant to Article 23 of the Prospectus Regulation, in each case, in relation to such offer. Neither we nor the underwriters have authorized, nor do we or they authorize, the making of any offer of Notes in circumstances in which an obligation arises for us or the underwriters to publish or supplement a prospectus for such offer.

MiFID II product governance / Professional investors and ECPs only target market– Solely for the purposes of each manufacturer’s product approval process, the target market assessment in respect of the Notes has led to the conclusion that: (i) the target market for the Notes is eligible counterparties and professional clients only, each as defined in MiFID II; and (ii) all channels for distribution of the Notes to eligible counterparties and professional clients are appropriate. Any person subsequently offering, selling or recommending the Notes (a “distributor”) should take into consideration the manufacturer’s target market assessment; however, a distributor subject to MiFID II is responsible for undertaking its own target market assessment in respect of the Notes (by either adopting or refining the manufacturer’s target market assessment) and determining appropriate distribution channels.

Notice to Prospective Investors in the UK

This prospectus supplement and the accompanying prospectus are only being distributed to, and are only directed at, persons who are outside the UK, or if in the UK, persons that are (1) investment professionals falling within Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005 (the “Order”) or (2) high net worth entities, and other persons to whom it may lawfully be communicated, falling within Article 49(2)(a) to (d) of the Order (each such person being referred to as a “Relevant Person”). This prospectus supplement and the accompanying prospectus and their contents are confidential and should not be distributed, published or reproduced (in whole or in part) or disclosed by recipients to any other persons in the UK. The Notes are only available to, and any invitation, offer or agreement to subscribe, purchase or otherwise acquire such Notes will be engaged in only with, a Relevant Person. Any person in the UK that is not a Relevant Person should not act or rely on this prospectus supplement and/or the accompanying prospectus or any of their contents.

This prospectus supplement and the accompanying prospectus have not been approved for the purposes of Section 21 of the UK Financial Services and Markets Act 2000 (the “FSMA”) by a person authorized under

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the FSMA. This prospectus supplement and the accompanying prospectus are being distributed and communicated to persons in the UK only in circumstances in which Section 21(1) of the FSMA does not apply to the prospectus supplement and the accompanying prospectus.

The Notes are not being offered or sold to any person in the UK except in circumstances which will not result in an offer of securities to the public in the UK within the meaning of Part VI of the FSMA.

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FORWARD-LOOKING STATEMENTS

This prospectus supplement, the accompanying prospectus and the information included or incorporated by reference herein and therein include “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and are subject to the safe harbor created thereby under the Private Securities Litigation Reform Act of 1995. Forward-looking statements include all statements that do not relate solely to historical or current facts and can generally be identified by words such as “anticipate,” “believe,” “could,” “estimate,” “expect,” “forecast,” “goal,” “intend,” “may,” “outlook,” “plan,” “positioned,” “possible,” “potential,” “project,” “should,” “target,” “will,” “would,” and similar expressions or variations thereof, or the negative thereof, but these terms are not the exclusive means of identifying such statements. Forward-looking statements are based on management’s expectations and assumptions as of the date they are made and are not guarantees of future performance. You are cautioned not to place undue reliance on our forward-looking statements.

Forward-looking statements may relate to a number of matters, including the expected timetable and benefits related to this offering and the potential offering of the U.S. notes (as defined below); expectations regarding revenue, margins, expenses, earnings, tax provisions, cash flows, pension obligations, share repurchases or other statements regarding economic conditions or our business outlook; statements regarding plans, projects, strategies and objectives for our future operations, including our ability to win new projects and execute the projects in our backlog; and statements regarding our expectations with respect to pending legal claims or disputes. While forward-looking statements are made in good faith and based on assumptions, expectations and projections that management believes are reasonable based on currently available information, actual performance and financial results may differ materially from projections and estimates expressed in the forward-looking statements because of many factors, including, without limitation:

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You should carefully read the factors described inRisk Factors, Management’s Discussion and Analysis of Financial Condition and Results of Operations, Quantitative and Qualitative Disclosures about Market Risk and other cautionary statements in this prospectus supplement, the accompanying prospectus and in our Annual Report on Form10-K for the year ended September 30, 2019, our Quarterly Reports on Form10-Q for the quarters ended December 31, 2019 and March 31, 2020, and our other filings with the SEC that are incorporated by reference into this prospectus supplement or the accompany prospectus for a description of certain risks that could, among other things, cause our actual results to differ from these forward-looking statements. Any of these factors, as well as those not currently anticipated by management, could cause our results of operations, financial condition or liquidity to differ materially from what is expressed or implied by any forward-looking statement. Further, many of these risks and uncertainties are currently amplified by and may continue to be amplified by or may, in the future, be amplified by, the recent outbreak ofCOVID-19 and the impact of varying government response that affects our customers and the economies where they operate. Except as required by law, we disclaim any obligation or undertaking to update or revise any forward-looking statements contained herein to reflect any change in assumptions, beliefs, or expectations or any change in events, conditions, or circumstances upon which any such forward-looking statements are based.

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RISK FACTORS

Your investment in the Notes involves risks. You should consider carefully the risks described below and those discussed under the sections captioned “Risk Factors” in our Annual Report on Form10-K for the fiscal year ended September 30, 2019 and in our Quarterly Report on Form10-Q for the quarter ended March 31, 2020. Each of the risks described in these documents could materially and adversely affect our business, financial condition, results of operations and prospects, and could result in a partial or complete loss of your investment.

The Notes are subject to prior claims of any of our secured creditors.

The Notes are our unsecured general obligations, ranking equally with other unsecured and unsubordinated debt but effectively subordinated to any secured debt that we have or may incur to the extent of the value of the collateral securing such debt.

Active trading markets for the Notes may not develop, which could limit their market prices or your ability to sell them.

The Notes constitute new issues of debt securities for which there currently are no trading markets. As a result, we cannot provide any assurance that any market will develop for the Notes or that you will be able to sell your Notes. Although we expect the Notes to be listed for trading on the NYSE, no assurance can be given that the Notes will become or remain listed, that a trading market for the Notes will develop or of the price at which investors may be able to sell the Notes, if at all. In addition, we will have no obligation to maintain, and may terminate, any listing of the Notes on the NYSE without the consent of the holders of the Notes. If any of the Notes are traded after their initial issuance, they may trade at discounts from their initial offering prices depending on prevailing interest rates, the markets for similar securities, general economic conditions, fluctuations in exchange rates with the euro, our financial condition, performance and prospects and other factors. The underwriters have advised us that they intend to make a market in each series of Notes, but they are not obligated to do so and may discontinue any market-making at any time without notice. Accordingly, we cannot assure you that liquid trading markets will develop for the Notes, that you will be able to sell your Notes or that the prices you receive when you sell will be favorable. To the extent an active trading market does not develop, the liquidity and trading prices for the Notes may be harmed. Accordingly, you may be required to bear the financial risk of an investment in the Notes for an indefinite period of time.

The indenture does not restrict the amount of additional debt that we may incur or taking other actions that could negatively impact holders of the Notes.

We may be able to incur substantially more debt in the future, and have commenced an offering for the U.S. notes substantially concurrently with this offering. The Notes and indenture governing the Notes will not limit us or our subsidiaries from incurring debt or additional liabilities. As of March 31, 2020, we had outstanding long-term debt of approximately $3.3 billion (which amount does not give effect to the issuance of the U.S. notes). Our incurrence of additional debt may have important consequences for holders of the Notes, including making it more difficult for us to satisfy our obligations with respect to the Notes, a loss in the trading value of the Notes, if any, and a risk that the credit ratings of the Notes are lowered or withdrawn.

Effective subordination of the Notes to indebtedness of our subsidiaries and to the claims of secured creditors may reduce amounts available for payment of the Notes.

The Notes are not guaranteed by any of our subsidiaries. As a result, the Notes will be effectively subordinated to the indebtedness and other liabilities of our subsidiaries. Except to the extent that we are a creditor with recognized claims against our subsidiaries, all claims of creditors (including trade creditors) and holders of preferred stock, if any, of our subsidiaries will have priority with respect to the assets of such

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subsidiaries over our claims (and therefore the claims of our creditors, including holders of the Notes). As of March 31, 2020, our subsidiaries had debt of approximately $400 million (excluding any intercompany debt owed to us). The Notes will not be secured by any of our assets, and as a result will be effectively subordinated to any secured debt that we may now have or may incur in the future, to the extent of the value of the assets securing such debt. As of March 31, 2020, we had no secured indebtedness.

Holders of the Notes will receive payments solely in euros, except under the limited circumstances provided herein, and investments in a currency other than the currency in which a holder of the Notes resides entails significant risks.

The initial investors in the Notes will be required to pay for the Notes in euros. All payments of principal, premium, if any, and interest in respect of the Notes and any redemption prices for the Notes, will be paid in euros subject to certain limited exceptions. None of the Company, the underwriters, the trustee or the paying agent will be obligated to assist the initial investors in obtaining euro or in converting other currencies into euro to facilitate the payment of the purchase price for the Notes or in converting payments of interest, principal, premium or any redemption price in euros made with respect to the Notes into U.S. dollars or any other currency.

An investment in the Notes by a holder whose home currency is not the euro entails significant risks not associated with a similar investment in a security denominated in the investor’s home currency. In the case of the Notes offered hereby, these risks may include the possibility of:

These risks generally depend on factors over which we have no control, such as economic, financial and political events and the supply of and demand for the relevant currencies. In recent years, rates of exchange between the euro and certain currencies have been highly volatile, and each holder should be aware that volatility may be expected to continue in the future. Fluctuations in any particular rate of exchange that have occurred in the past, however, are not necessarily indicative of fluctuations in the rate that may occur during the term of the Notes. Depreciation of the euro against the holder’s functional currency would result in a decrease in the effective yield of the Notes below the coupon rate and, in certain circumstances, could result in a loss to the holder. See “Currency Conversion.” If you are a beneficial owner of Notes subject to U.S. federal income tax, see “Material United States Federal Income Tax Considerations” for certain U.S. federal income tax consequences related to the Notes being denominated in euros.

The Notes permit us to make payments in U.S. dollars if we are unable to obtain euros.

If the euro is unavailable to us due to the imposition of exchange controls or other circumstances beyond our control or if the euro is no longer being used by the then-member states of the European Monetary Union that have adopted the euro as their currency or for the settlement of transactions by public institutions of or within the international banking community, all payments in respect of the Notes will be made in U.S. dollars until the euro is again available to us or so used. The amount payable on any date in euros will be converted into U.S. dollars in accordance with the indenture governing the Notes. Any payment in respect of the Notes so made in U.S. dollars will not constitute an event of default under the Notes or the indenture governing the Notes. There can be no assurance that this exchange rate will be as favorable to holders of Notes as the exchange rate

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otherwise determined by applicable law or the exchange rate that might have been used had that rate been determined as of a specific date or with reference to a specific publication or other source of exchange rate data. These potential developments, or market perceptions concerning these and related issues, could materially adversely affect the value of the Notes.

We may not be able to repurchase the Notes upon a Change of Control Triggering Event.

Upon the occurrence of a Change of Control Triggering Event, we will be required to make an offer to each holder of the Notes to repurchase all or any part of that holder’s Notes at a purchase price equal to 101% of the aggregate principal amount of thereof, together with accrued and unpaid interest thereon to the date of repurchase. It is possible that we will not have sufficient funds at the time of any Change of Control Triggering Event to make the required repurchases. In order to obtain sufficient funds to pay the purchase price of the outstanding Notes, we may need to refinance the Notes. We cannot assure you that we would be able to refinance the Notes on reasonable terms, or at all.

Credit ratings of the Notes may change and affect the market prices and marketability of the Notes or not reflect all risks of an investment in the Notes.

Credit ratings are limited in scope, and do not address all material risks relating to an investment in the Notes, but rather reflect only the view of each rating agency at the time the rating is issued. An explanation of the significance of such rating may be obtained from such rating agency. There can be no assurance that such credit ratings will remain in effect for any given period of time or that a rating will not be lowered, suspended or withdrawn entirely by the applicable rating agencies, if, in such rating agency’s judgment, circumstances so warrant. Each agency’s rating should be evaluated independently of any other agency’s rating. Agency credit ratings are not a recommendation to buy, sell or hold any security. Actual or anticipated changes or downgrades in our credit ratings, including any announcement that our ratings are under review for a downgrade, could affect the market prices or marketability of the Notes and increase our corporate borrowing costs.

Redemption prior to maturity may adversely affect your return on the Notes.

Since the Notes are redeemable at our option, we may choose to redeem your Notes at times when prevailing interest rates are relatively low. As a result, you generally will not be able to reinvest the redemption proceeds in a comparable security at effective interest rates as high as the interest rates on your Notes being redeemed.

An increase in market interest rates could result in a decrease in the market value of the Notes.

In general, as market interest rates rise, debt securities bearing interest at fixed rates of interest decline in value. Consequently, if you purchase Notes and market interest rates increase, the market value of those Notes may decline. We cannot predict the future level of market interest rates.

Trading in the clearing system is subject to minimum denomination requirements.

The terms of the Notes provide that Notes will be issued with a minimum denomination of €100,000 and multiples of €1,000 in excess thereof. It is possible that the clearing systems may process trades that could result in amounts being held in denominations smaller than the minimum denominations. If definitive Notes are required to be issued in relation to such Notes in accordance with the provisions of the relevant global Notes, a holder who does not have the minimum denomination or a multiple of €1,000 in excess thereof in its account with the relevant clearing system at the relevant time may not receive all of its entitlement in the form of definitive Notes unless and until such time as its holding satisfies the minimum denomination requirement.

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Transactions in the Notes could be subject to the European financial transaction tax, if adopted.

On February 14, 2013, the European Commission published a proposal (the “Commission’s Proposal”) for a Directive for a common financial transaction tax (the “FTT”) in Austria, Belgium, Estonia, France, Germany, Greece, Italy, Portugal, Slovenia, Slovakia and Spain (the “Participating Member States”). However, Estonia has since stated that it will not participate.

The Commission’s Proposal has a very broad scope and could, if introduced in its current form, impose a tax at generally not less than 0.1%, determined by reference to the amount of consideration paid on certain dealings in Notes (including secondary market transactions) in certain circumstances. The issuance and subscription of Notes should, however, be exempt. The mechanism by which the tax would be applied and collected is not yet known, but if the proposed directive or any similar tax is adopted, transactions in the Notes would be subject to higher costs, and the liquidity of the market for the Notes may be diminished.

Under the Commission’s Proposal, the FTT could apply in certain circumstances to persons both within and outside of the Participating Member States. Generally, it would apply to certain dealings in Notes where at least one party is a financial institution and at least one party is established in a Participating Member State. A financial institution may be, or be deemed to be, “established” in a Participating Member State in a broad range of circumstances, including (a) by transacting with a person established in a Participating Member State or (b) where the financial instrument which is subject to the dealings is issued in a Participating Member State.

The FTT proposal remains subject to negotiation between the Participating Member States (excluding Estonia) and the scope of such tax is uncertain. Such proposal remains subject to change until a final approval and it may therefore be altered prior to any implementation, the timing of which remains unclear. Additional EU Member States may decide to participate and/or certain of the Participating Member States (excluding Estonia which has already withdrawn) may decide to withdraw. You should consult your own tax advisor regarding the consequences of the FTT that could be associated with subscribing for, purchasing, holding and disposing of the Notes.

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CURRENCY CONVERSION

Investors will be required to pay for the Notes in euros. All payments of principal, premium, if any, and interest on the Notes, including payments made upon any redemption, and any other amounts that may be payable with respect to the Notes, will be payable in euros. If, however, the euro is unavailable to us due to the imposition of exchange controls or other circumstances beyond our control, or if the euro is no longer being used by the then-member states of the European Monetary Union that have adopted the euro as their currency or for the settlement of transactions by public institutions of or within the international banking community, then all payments in respect of the Notes will be made in U.S. dollars until the euro is again available to us or so used. In such circumstances, the amount payable on any date in euros will be converted into U.S. dollars as determined by a paying agent appointed by us and shall be equal to the sum obtained by converting euros into U.S. dollars at the exchange rate on the second business day preceding such interest payment date or the second business day preceding the maturity of an installment of principal, as the case may be, or if no rate is quoted for euros, the last date such rate is quoted, all in accordance with the terms in the Indenture.

Investors will be subject to foreign exchange risks as to payments on the Notes that may have important economic and tax consequences to them. See “Risk Factors.”

As of 9:00 a.m. (London Time) on April 28, 2020, the euro/U.S. dollar rate of exchange as reported by Bloomberg was €1/U.S.$1.0829.

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USE OF PROCEEDS

We estimate that the net proceeds from the sale of the Notes will be approximately €988.9 million after deduction of the underwriting discounts and estimated expenses related to the offering. We expect to use a portion of the net proceeds from this offering to repay €300 million aggregate principal amount of our 2.000% Notes due 2020, which mature on August 7, 2020 and €350 million aggregate principal amount of our 0.375% Notes due 2021, which mature on June 1, 2021. We intend to use the remaining net proceeds for general corporate purposes, including financing a planned equity investment of approximately $2.5 billion in the joint venture that will acquire the gasification, power and industrial gas assets at Jazan Economic City, Saudi Arabia, and other investments in industrial gas products. Prior to such uses, we may temporarily invest the net proceeds in marketable securities and short-term investments.

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DESCRIPTION OF NOTES

The following description of the particular terms of the 0.500% Notes due 2028 (the “2028 Notes”) and the 0.800% Notes due 2032 (the “2032 Notes,” and together with the 2028 Notes, the “Notes”) offered hereby supplements the description of the general terms and provisions of the Debt Securities included in the accompanying prospectus. The following summary of the Notes is qualified in its entirety by reference in the accompanying prospectus to the description of the indenture (the “Indenture”) to be entered into between the Company and The Bank of New York Mellon Trust Company, N.A., as trustee.

General

The 2028 Notes will mature on May 5, 2028 and the 2032 Notes will mature on May 5, 2032. The Notes will constitute part of the senior debt of the Company and will rankpari passu with all other unsecured and unsubordinated indebtedness of the Company. The Notes will be issued in fully registered form only, in denominations of €100,000 and additional multiples of €1,000, through the facilities of Euroclear and Clearstream, and sales in book-entry form may be effected only through participants in Euroclear or Clearstream.

The 2028 Notes will bear interest from May 5, 2020 at the annual rate of 0.500%, and the 2032 Notes will bear interest from May 5, 2020 at the annual rate of 0.800%. Interest on the Notes will be payable annually on May 5 commencing on May 5, 2021 to the persons in whose names such Notes are registered at the close of business on the 15th calendar day prior to the payment date.

Interest payable at the maturity of the Notes will be payable to registered holders of the Notes to whom principal is payable. Interest will be computed on the basis of the actual number of days in the period for which interest is being calculated and the actual number of days from and including the last date on which interest was paid on the Notes (or from May 5, 2020, if no interest has been paid on the Notes), to but excluding the next scheduled interest payment date. This payment convention is referred to as ACTUAL/ACTUAL (ICMA) as defined in the rulebook of the International Capital Markets Association.

If any interest payment date falls on a day that is not a Business Day (as defined below), the interest payment will be postponed to the next day that is a Business Day, and no interest on such payment will accrue for the period from and after such interest payment date. If the maturity date of the Notes falls on a day that is not a Business Day, the payment of interest and principal shall be made on the next succeeding Business Day, and no interest on such payment will accrue for the period from and after the maturity date.

Interest payments for the Notes will include accrued interest from and including the date of issue or from and including the last date in respect of which interest has been paid, as the case may be, to but excluding the interest payment date or the date of maturity, as the case may be.

Neither the trustee nor the paying agent shall act as the exchange rate agent or have any responsibility for effecting any foreign currency conversions or calculations hereunder.

Each series of Notes will constitute separate series of Debt Securities under the Indenture.

The Company may, without the consent of the holders of a series of Notes, issue additional Notes having the same ranking and the same interest rate, maturity and other terms (except for the issue date and public offering price and, if applicable, the initial interest payment date) as the Notes of a particular series. Any additional Notes having such similar terms, together with the relevant series of Notes, will constitute a single series of Debt Securities under the Indenture. No additional Notes having such similar terms may be issued if an Event of Default has occurred and is continuing with respect to such Notes. In the event that any additional Notes are not fungible with the Notes offered hereby for U.S. federal income tax purposes, such additional Notes will have a separate CUSIP, ISIN, or other identifying number so that they are distinguishable from the Notes offered hereby.

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As used in this prospectus supplement, “Business Day” means any day, other than a Saturday or Sunday, (i) that is neither a legal holiday nor a day on which banking institutions are authorized or required by law or regulation to close in The City of New York or London, and (ii) on which the Trans-European Automated Real-Time Gross settlement Express Transfer system (the TARGET2 System) or any successor thereto, is open.

Issuance in Euros

The initial investors in the Notes will be required to pay for the Notes in euros. Principal and interest payments of the Notes are payable by us in euros. If, on or after the date of this prospectus supplement, the euro is unavailable to us due to the imposition of exchange controls or other circumstances beyond our control or if the euro is no longer being used by the then-member states of the European Monetary Union that have adopted the euro as their currency or for the settlement of transactions by public institutions of or within the international banking community, then all payments in respect of the Notes will be made in U.S. dollars until the euro is again available to us or so used. In such circumstances, the amount payable on any date in euros will be converted into U.S. dollars in accordance with the Indenture. See “Currency Conversion.” Any payment in respect of the Notes so made in U.S. dollars will not constitute an event of default under the Notes or the Indenture.

Investors will be subject to foreign exchange risks as to payments of principal and interest that may have important economic and tax consequences to them. See “Risk Factors.”

Optional Redemption

At our option, we may redeem the Notes, in whole or in part, at any time or from time to time as described below.

If we redeem all or any part of either series of the Notes prior to the applicable Par Call Date (as defined below), we will pay a redemption price equal to the greater of:

plus, in each case, any accrued and unpaid interest to, but excluding, the redemption date. If we redeem all or any part of the Notes on or after the applicable Par Call Date, we will pay a redemption price equal to 100% of the principal amount of such series of Notes being redeemed plus accrued and unpaid interest thereon. The redemption price shall be calculated by the Company.

“Comparable Government Bond” means, in relation to any Comparable Government Bond Rate calculation, at the discretion of an independent investment bank selected by us, a GermanBundesanleihe security whose maturity is closest to the maturity of the Notes being redeemed (assuming that the Notes to be redeemed matured on the applicable Par Call Date), or if such independent investment bank in its discretion considers that such similar bond is not in issue, such other German Bundesanleihe security as such independent investment bank may, with the advice of three brokers of, or market makers in, GermanBundesanleihe securities selected by such independent investment bank, determine to be appropriate for determining the Comparable Government Bond Rate.

“Comparable Government Bond Rate” means the price, expressed as a percentage (rounded to three decimal places, 0.0005 being rounded upwards), at which the gross redemption yield on the Notes being redeemed, if they were to be purchased at such price prior to the applicable Par Call Date on the third business day prior to the date fixed for

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redemption, would be equal to the gross redemption yield on such business day of the Comparable Government Bond on the basis of the middle market price of the Comparable Government Bond prevailing at 11:00 a.m. (London time) on such business day as determined by an independent investment bank selected by us.

“Par Call Date” means February 5, 2028 for the 2028 Notes and February 5, 2032 for the 2032 Notes.

Redemption for Tax Reasons

If, as a result of any change in, or amendment to, the laws of the United States or the official interpretation thereof that is announced or becomes effective on or after the date of this prospectus supplement, we become or, based upon a written opinion of nationally recognized independent counsel selected by us, there is a substantial probability that we will become obligated within 90 days to pay additional amounts as described herein under the heading “—Payment of Additional Amounts” with respect to the Notes, then we may at any time at our option redeem, in whole, but not in part, the applicable series of Notes on not less than 30 nor more than 60 days’ prior notice, at a redemption price equal to 100% of the principal amount of the Notes being redeemed, together with accrued and unpaid interest on the Notes to, but excluding, the date fixed for redemption.

Change of Control and Ratings Decline

Upon the occurrence of a Change of Control Triggering Event, we will be required to make an offer (a “Change of Control Offer”) to each holder of the applicable series of Notes to repurchase all or any part (equal to €100,000 or an integral multiple of €1,000 thereof) of such holder’s Notes at a purchase price equal to 101% of the aggregate principal amount thereof, together with accrued and unpaid interest thereon to the date of repurchase (the “Change of Control Payment”). Within 30 days following any Change of Control Triggering Event, we will be required to mail (or otherwise transmit in accordance with DTC procedures) a notice to each holder stating:

We will not be required to make a Change of Control Offer following a Change of Control Triggering Event if a third party makes a Change of Control Offer in the manner, at the times and otherwise in compliance with the requirements set forth in the Notes applicable to a Change of Control Offer made by the Company and

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purchases all of the applicable series of Notes validly tendered and not withdrawn under such Change of Control Offer. Notwithstanding anything to the contrary herein, a Change of Control Offer may be made in advance of a Change of Control Triggering Event, conditional upon such Change of Control, if a definitive agreement is in place for the Change of Control at the time of making the Change of Control Offer.

Except as described above with respect to a Change of Control Triggering Event, the Indenture will not contain any provisions that permit the holders of the Notes to require that we repurchase or redeem the Notes in the event of a takeover, recapitalization or similar transaction.

“Capital Stock” means any and all shares, interests, participations, rights or other equivalents, however designated, of corporate stock or partnership or membership interests, whether common or preferred.

“Change of Control” means the occurrence of any one of the following:

Notwithstanding the foregoing, a transaction will not be deemed to involve a Change of Control if (1) we become a direct or indirect wholly owned subsidiary of a holding company and (2)(A) the direct or indirect holders of the Voting Stock of such holding company immediately following that transaction are substantially the same as the holders of our Voting Stock immediately prior to that transaction or (B) immediately following that transaction no person (other than a holding company satisfying the requirements of this sentence) is the beneficial owner, directly or indirectly, of more than 50% of the Voting Stock of such holding company.

“Change of Control Triggering Event” means the occurrence of both a Change of Control and a Ratings Decline.

“Investment Grade” means a rating of Baa3 or better by Moody’s (or its equivalent under any successor rating category of Moody’s) and a rating ofBBB- or better by S&P (or its equivalent under any successor rating category of S&P). In the event that we shall select any other Rating Agency, the equivalent of such ratings by such Rating Agency shall be used.

“Moody’s” means Moody’s Investors Service, Inc., a subsidiary of Moody’s Corporation, and its successors.

“Rating Agency” means each of Moody’s and S&P and any other Rating Agency appointed by the Company.

“Ratings Decline” means, with respect to each series of Notes, within 60 days after the earlier of, (i) the occurrence of a Change of Control or (ii) public notice of the occurrence of a Change of Control or the intention by the Company to effect a Change of Control (which period shall be extended so long as the rating of the Notes is under publicly announced consideration for a possible downgrade by any of the Rating Agencies) (the “Trigger Period”), (a) if two or more Rating Agencies are providing a rating for the Notes at the commencement of any Trigger Period, the rating of the Notes shall be reduced by at least two Rating Agencies and the Notes shall be rated below Investment Grade by each of such Rating Agencies or (b) if only one Rating Agency is providing a rating for the Notes at the commencement of any Trigger Period, the rating of the Notes shall be reduced by such

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Rating Agency and the Notes shall be rated below Investment Grade by such Rating Agency. Neither the trustee nor the paying agent shall be responsible for monitoring our Investment Grade status or determining whether a Ratings Decline has occurred.

“S&P” means S&P Global Ratings, a division of S&P Global Inc., and its successors.

“Voting Stock” with respect to any person, means securities of any class of Capital Stock of such person entitling the holders thereof (whether at all times or only so long as no senior class of stock or other relevant equity interest has voting power by reason of any contingency) to vote in the election of members of the board of directors of such person.

The Company will comply in all material respects with the requirements of Regulation 14E under the Exchange Act and any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with the repurchase of the Notes as a result of a Change of Control Triggering Event. To the extent that the provisions of any such securities laws or regulations conflict with the Change of Control Offer provisions of the Notes, the Company will comply with those securities laws and regulations and will not be deemed to have breached its obligations under the Change of Control Offer provisions of the Notes by virtue of any such conflict.

Defeasance of the Indenture and Notes

The provisions of the Indenture described in the accompanying prospectus under “Description of Securities—Senior Debt Securities—Defeasance of the Indenture and Securities” will apply to the Notes. In addition, as a condition to defeasance, we must deliver to the trustee an opinion of counsel to the effect that the beneficial owners of the Notes will not recognize income, gain, or loss for U.S. federal income tax purposes as a result of such defeasance and will be subject to U.S. federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such defeasance had not occurred.

Payment of Additional Amounts

We will, subject to the exceptions and limitations set forth below, pay as additional interest on the Notes such additional amounts as are necessary in order that the net payment by us or the applicable withholding agent of the principal of and interest on the Notes with respect to a payee that is not a United States person (as defined below), after withholding or deduction for any present or future tax, assessment or other governmental charge imposed by the United States or a taxing authority in the United States, will not be less than the amount provided in the Notes to be then due and payable; provided, however, that the foregoing obligation to pay additional amounts shall not apply:

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Except as specifically provided under this heading “—Payment of Additional Amounts,” we will not be required to pay additional amounts in respect of any tax, assessment or other governmental charge.

As used under this heading “—Payment of Additional Amounts” and under the heading “—Redemption for Tax Reasons,” the term “United States” means the United States of America, any state thereof, and the District of Columbia, and the term “United States person” means (i) any individual who is a citizen or resident of the United States for U.S. federal income tax purposes, (ii) a corporation, partnership or other entity created or organized in or under the laws of the United States, any state thereof or the District of Columbia (other than a partnership that is not treated as a United States person for U.S. federal income tax purposes) or treated as a domestic corporation under Section 7874(b) of the Code, (iii) any estate the income of which is subject to U.S. federal income taxation regardless of its source, or (iv) any trust if a U.S. court can exercise primary supervision over the administration of the trust and one or more United States persons can control all substantial trust decisions, or if a valid election is in place to treat the trust as a United States person.

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Listing

We intend to apply to list each series of Notes on the NYSE, and we expect trading in each series of the Notes on the NYSE to begin within 30 days after the initial issuance of the Notes. We will have no obligation to maintain the listing of the Notes, and we may delist any series of Notes at any time.

Global Clearance and Settlement

The Notes will be issued in the form of one or more fully registered global notes (the “Global Notes”) and will be deposited with a common depositary for, and in respect of interests held through, Euroclear Bank SA/NV, as operator of Euroclear and Clearstream. Except as described herein, certificates will not be issued in exchange for beneficial interests in the Global Notes.

We have obtained the information in this section concerning Euroclear and Clearstream and their book-entry systems and procedures from sources that we believe to be reliable, but we take no responsibility for its accuracy or completeness. This information is not intended to serve as a representation, warranty, or contract modification of any kind. We assume no responsibility for the performance by Euroclear, Clearstream or their respective participants of their respective obligations, including obligations that they have under the rules and procedures that govern their operations.

Except as set forth below, the Global Notes may be transferred, in whole and not in part, only to Euroclear or Clearstream or their respective nominees.

Beneficial interest in the Global Notes will be represented, and transfers of such beneficial interests will be effected, through accounts of financial institutions acting on behalf of beneficial owners as direct or indirect participants in Euroclear or Clearstream. Those beneficial interests will be held in denominations of €100,000 and additional multiples of €1,000 in excess thereof. Investors may hold Notes directly through Euroclear or Clearstream, if they are participants in such systems, or indirectly through organizations that are participants in such systems.

Owners of beneficial interests in the Global Notes will not be entitled to have Notes registered in their names, and will not receive or be entitled to receive physical delivery of Notes in definitive form. Except as provided below, beneficial owners will not be considered the owners or holders of the Notes under the Indenture, including for purposes of receiving any reports delivered by us or the trustee pursuant to the Indenture. Accordingly, each beneficial owner must rely on the procedures of the clearing systems and, if such person is not a participant of the clearing systems, on the procedures of the participant through which such person owns its interest, to exercise any rights of a holder under the Indenture. Under existing industry practices, if we request any action of holders or a beneficial owner desires to give or take any action which a holder is entitled to give or take under the Indenture, the clearing systems would authorize their participants holding the relevant beneficial interests to give or take action and the participants would authorize beneficial owners owning through the participants to give or take such action or would otherwise act upon the instructions of beneficial owners.

Conveyance of notices and other communications by the clearing systems to their participants, by the participants to indirect participants and by the participants and indirect participants to beneficial owners will be governed by arrangements among them, subject to any statutory or regulatory requirements as may be in effect from time to time. The laws of some jurisdictions require that certain purchasers of securities take physical delivery of such securities in certificated form. These limits and laws may impair the ability to transfer beneficial interests in Global Notes.

Persons who are not Euroclear or Clearstream participants may beneficially own Notes held by the common depositary for Euroclear and Clearstream only through direct or indirect participants in Euroclear and Clearstream. So long as the common depositary for Euroclear and Clearstream is the registered owner of the Global Note, the common depositary for all purposes will be considered the sole holder of the Notes represented by the Global Note under the Indenture and the Global Notes.

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Euroclear

Euroclear was created in 1968 to hold securities for its participating organizations (“Euroclear participants”) and to clear and settle transactions between Euroclear participants and participants of certain other securities intermediaries through simultaneous electronic book-entry delivery against payment, thus eliminating the need for physical movement of certificates and the risk from lack of simultaneous transfers of securities and cash. Euroclear provides various other services, including securities lending and borrowing, and interfaces with domestic markets in several countries. Euroclear is operated by Euroclear Bank SA/NV (the “Euroclear Operator”), under contract with Euroclear Clearance Systems, S.C., a Belgian cooperative corporation (the “Cooperative”). All operations are conducted by the Euroclear Operator, and all Euroclear securities clearance accounts and Euroclear cash accounts are accounts with the Euroclear Operator. The Cooperative establishes policy for Euroclear on behalf of Euroclear participants. Euroclear participants include banks (including central banks), securities brokers and dealers and other professional financial intermediaries and may include the Underwriters. Indirect access to Euroclear is also available to other firms that clear through or maintain a custodial relationship with a Euroclear participant, either directly or indirectly. The Euroclear Operator is regulated and examined by the Belgian Banking Commission.

Securities clearance accounts and cash accounts with the Euroclear Operator are governed by the Terms and Conditions Governing Use of Euroclear and the related Operating Procedures of the Euroclear System and applicable Belgian law (collectively, the “Terms and Conditions”). The Terms and Conditions govern securities clearance accounts and cash accounts with Euroclear. Specifically, the Terms and Conditions govern:

All securities in Euroclear are held on a fungible basis without attribution of specific certificates to specific securities clearance accounts. Euroclear acts under the Terms and Conditions only on behalf of Euroclear participants and has no record of or relationship with persons holding securities through Euroclear participants.

Clearstream

Clearstream is incorporated under the laws of Luxembourg as a professional depositary. Clearstream holds securities for its participating organizations (“Clearstream customers”) and facilitates the clearance and settlement of securities transactions between Clearstream customers through electronic book-entry. Clearstream provides to Clearstream customers, among other things, services for safekeeping, administration, clearance and settlement of internationally traded securities and securities lending and borrowing. Clearstream interfaces with domestic securities markets in several countries. As a professional depositary, Clearstream is subject to regulation by the Luxembourg Monetary Institute. Clearstream customers are recognized financial institutions around the world, including underwriters, securities brokers and dealers, banks, trust companies, clearing corporations and certain other organizations, and may include the underwriters. Indirect access to Clearstream is also available to other institutions such as banks, brokers, dealers and trust companies, that clear through or maintain a custodial relationship with a Clearstream customer either directly or indirectly.

Euroclear and Clearstream Arrangements

So long as Euroclear or Clearstream or their nominee or their common depositary is the registered holder of the Global Notes, Euroclear, Clearstream or such nominee, as the case may be, will be considered the sole owner or holder of the Notes represented by such Global Notes for all purposes under the Indenture and the Notes. Payments of principal, interest and additional amounts, if any, in respect of the Global Notes will be made to Euroclear, Clearstream or such nominee, as the case may be, as registered holder thereof. None of us, the trustee, any underwriter and any affiliate of any of the above or any person by whom any of the above is

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controlled (as such term is defined in the Securities Act of 1933) will have any responsibility or liability for any records relating to or payments made on account of beneficial ownership interests in the Global Notes or for maintaining, supervising or reviewing any records relating to such beneficial ownership interests.

Distributions of principal and interest with respect to the Global Notes will be credited in euro to the extent received by Euroclear or Clearstream from the paying agent to the cash accounts of Euroclear or Clearstream customers in accordance with the relevant system’s rules and procedures.

Because Euroclear and Clearstream can only act on behalf of participants, who in turn act on behalf of indirect participants, the ability of a person having an interest in the Global Notes to pledge such interest to persons or entities which do not participate in the relevant clearing system, or otherwise take actions in respect of such interest, may be affected by the lack of a physical certificate in respect of such interest.

Initial Settlement

We understand that investors that hold their Notes through Euroclear or Clearstream accounts will follow the settlement procedures that are applicable to conventional eurobonds in registered form. Subject to applicable procedures of Euroclear and Clearstream, Notes will be credited to the securities custody accounts of Clearstream and Euroclear participants on the business day following the settlement date, for value on the settlement date.

Secondary Market Trading

Because the purchaser determines the place of delivery, it is important to establish at the time of trading of any Notes where both the purchaser’s and seller’s accounts are located to ensure that settlement can be made on the desired value date.

We understand that secondary market trading between Euroclear and/or Clearstream participants will occur in the ordinary way following the applicable rules and operating procedures of Euroclear and Clearstream. Secondary market trading will be settled using procedures applicable to conventional eurobonds in registered form.

You should be aware that investors will only be able to make and receive deliveries, payments and other communications involving the Notes through Euroclear and Clearstream on days when those systems are open for business. Those systems may not be open for business on days when banks, brokers and other institutions are open for business in the United States.

In addition, because of time-zone differences, there may be problems with completing transactions involving Euroclear and Clearstream on the same business day as in the United States. U.S. investors who wish to transfer their interests in the Notes, or to make or receive a payment or delivery of the Notes, on a particular day, may find that the transactions will not be performed until the next business day in Luxembourg or Brussels, depending on whether Euroclear or Clearstream is used.

Euroclear or Clearstream will credit payments to the cash accounts of Euroclear participants or Clearstream customers, as applicable, in accordance with the relevant system’s rules and procedures, to the extent received by its depositary. The Euroclear Operator or Clearstream, as the case may be, will take any other action permitted to be taken by a holder under the Indenture on behalf of a Euroclear participant or Clearstream customer only in accordance with its relevant rules and procedures.

Euroclear and Clearstream have agreed to the foregoing procedures in order to facilitate transfers of the Notes among participants of Euroclear and Clearstream. However, they are under no obligation to perform or continue to perform those procedures, and they may discontinue those procedures at any time.

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Certificated Notes

Subject to certain conditions, the Notes represented by the Global Notes are exchangeable for certificated Notes in definitive form of like tenor in minimum denominations of €100,000 principal amount and multiples of €1,000 in excess thereof if:

In all cases, certificated Notes delivered in exchange for any Global Note will be registered in the names, and issued in any approved denominations, requested by or on behalf of the common depositary (in accordance with its customary procedures).

Payments (including principal, premium and interest) and transfers with respect to Notes in certificated form may be executed at the office or agency maintained for such purpose in London (initially the office of the paying agent maintained for such purpose) or, at our option, by check mailed to the holders thereof at the respective addresses set forth in the register of holders of the applicable Notes, provided that all payments (including principal, premium and interest) on Notes in certificated form, for which the holders thereof have given wire transfer instructions, will be required to be made by wire transfer of immediately available funds to the accounts specified by the holders thereof. No service charge will be made for any registration of transfer, but payment of a sum sufficient to cover any tax or governmental charge payable in connection with that registration may be required.

Trustee and Paying Agent

The Bank of New York Mellon, N.A. is the trustee under the Indenture. We may maintain deposit accounts and conduct other banking transactions with the trustee or an affiliate of the trustee in the ordinary course of business.

The paying agent for the Notes will initially be The Bank of New York Mellon, London Branch. Upon notice to the trustee, we may change the paying agent at any time.

Governing Law

The Notes and the Indenture will be governed by and construed in accordance with the laws of the State of New York.

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MATERIAL UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS

General

The following discussion summarizes material U.S. federal income tax consequences of the purchase, ownership and disposition of the Notes. This summary is for general information purposes only and does not purport to consider all aspects of U.S. federal income taxation that might be relevant to a holder of the Notes.

This discussion is based on the Internal Revenue Code of 1986, as amended (the “Code”), existing, temporary and proposed Treasury Regulations thereunder, rulings, administrative pronouncements and judicial decisions, all as in effect on the date hereof and all of which are subject to change or differing interpretations, possibly with retroactive effect. Any such change or differing interpretation may alter the U.S. federal income tax consequences described herein. No ruling from the Internal Revenue Service (“IRS”) will be requested in connection with this offering. Accordingly, the discussion below neither binds the IRS nor precludes it from adopting a contrary position.

This discussion addresses only holders that hold the Notes as capital assets (within the meaning of Section 1221 of the Code). It does not address any tax consequences applicable to holders that are subject to special rules, including, but not limited to, persons that own (or are deemed to own) 10% or more of the total combined voting power of all classes of our stock entitled to vote, “controlled foreign corporations” that are “related” to us within the meaning of Section 864(d)(4) of the Code, holders that are dealers in securities or foreign currency, financial institutions or insurance companies, mutual funds, holders that hold the Notes through individual retirement or othertax-deferred accounts,tax-exempt organizations, partnerships (or arrangements treated as partnerships for U.S. federal income tax purposes), real estate investment trusts, S corporations and other pass-through entities, U.S. Holders (as defined below) whose functional currency is not the U.S. dollar, and holders that hold the Notes as part of an integrated investment (including a straddle, constructive sale or conversion transaction) comprised of the Notes and one or more other positions and persons who are a former citizen or resident of the United States. This discussion does not address the alternative minimum tax provisions and, except where specifically indicated, this discussion does not discuss the effect of any other federal tax laws (e.g., estate and gift tax), or any state, local ornon-U.S. tax laws.

In addition, this discussion applies to you only if you purchase your Notes for cash in the original issue and at the Notes’ “issue price” within the meaning of Section 1273 of the Code (i.e., the first price at which a substantial amount of Notes is sold for cash to persons other than bond houses, brokers or similar persons or organizations acting in the capacity of underwriters, placement agents, or wholesalers).

If a partnership or other pass-through entity for U.S. federal income tax purposes holds the Notes, the tax treatment of a partner of such partnership or member of such other pass-through entity will generally depend upon the status of the partner or member and the activities of the partnership or other pass-through entity. Partnerships and other pass-through entities holding the Notes, and any person who is a partner or member of such entities, should consult their own tax advisors regarding the tax consequences of acquiring the Notes.

Because a Change of Control Triggering Event could require us to pay amounts in excess of the stated principal amount of the Notes, this contingency could cause the Notes to be treated as “contingent payment debt instruments” for U.S. federal income tax purposes unless the contingency is “remote” or “incidental” . We intend to take the position that the contingency is remote or incidental for U.S. federal income tax purposes. Our determination that the Notes should not be treated as contingent payment debt instruments will be binding on you unless you disclose a contrary position to the IRS in a manner required by applicable Treasury Regulations. Our determination is not, however, binding on the IRS. If the IRS successfully asserts that the Notes should be treated as contingent payment debt instruments, you may be required to currently accrue income on the Notes at a rate in excess of stated interest, and would be required to treat as ordinary income (rather than as capital gain) any gain realized on the sale or other taxable disposition of the Notes. This discussion assumes that the Notes will not be treated as contingent payment debt instruments.

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EACH HOLDER IS URGED TO CONSULT HIS, HER OR ITS OWN TAX ADVISOR REGARDING THE APPLICABLE U.S. FEDERAL, STATE, LOCAL,NON-U.S. INCOME AND OTHER TAX CONSEQUENCES OF THE OWNERSHIP AND DISPOSITION OF THE NOTES, AS WELL AS ANY TAX REPORTING REQUIREMENTS WITH RESPECT THERETO.

U.S. Holders

This section applies to you only if you are a U.S. Holder. For purposes of this discussion, you are a “U.S. Holder” if you are a beneficial owner of the Notes and you are, for U.S. federal income tax purposes:

Interest Payments

It is expected, and this discussion assumes, that the Notes will be issued without original issue discount. You will include in gross income the U.S. dollar value of stated interest as ordinary interest income at the time it is paid or accrued in accordance with your regular method of accounting for U.S. federal income tax purposes.

In general, if you use the cash method of accounting, you will calculate the U.S. dollar value of payments of stated interest based on the U.S. dollar-euro exchange rate at the time you receive the payment, regardless of whether you actually convert the payment into U.S. dollars.

In general, if you use the accrual method of accounting, you will calculate the U.S. dollar value of accrued interest based on the average U.S. dollar-euro exchange rate during the applicable interest accrual period (or, with respect to an interest accrual period that spans two taxable years, the partial period within your taxable year). Alternatively, you may elect to calculate the U.S. dollar value of accrued interest based on the U.S. dollar-euro exchange rate on the last day of the applicable interest accrual period (or, with respect to an interest accrual period that spans two taxable years, the partial period within your taxable year) or, if the last day of the interest accrual period is within five business days of your receipt of the payment, the U.S. dollar-euro exchange rate on the date of receipt. Any such election must be applied to all debt instruments held by you and is irrevocable without the consent of the IRS.

If you use the accrual method of accounting, you will recognize foreign currency exchange gain or loss on the receipt of interest payments on your Notes to the extent that the U.S. dollar-euro exchange rate on the date such payment is received differs from the rate used to accrue that interest income. Any foreign currency exchange gain or loss generally will be treated as ordinary income or loss, and will generally constitute U.S. source income or loss for foreign tax credit limitation purposes.

Sale or Other Taxable Disposition of the Notes

In general, you will have a tax basis in your Notes equal to the U.S. dollar value of the cost of such Notes. If you use the cash method of accounting and the Notes are traded on the NYSE, you generally will calculate the U.S. dollar value of the cost of your Notes based on the U.S. dollar-euro exchange rate on the settlement date with respect to your acquisition of the Notes. If you use the accrual method of accounting, you

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generally will calculate the U.S. dollar value of the cost of your Notes based on the U.S. dollar-euro exchange rate on the date you acquire the Notes; however, if the Notes are traded on the NYSE, you may elect to instead calculate the U.S. dollar value of the cost of your Notes based on the U.S. dollar-euro exchange rate on the settlement date with respect to your acquisition and disposition of the Notes. Any such election must be applied to all debt instruments held by you and is irrevocable without the consent of the IRS.

On the sale, exchange (other than in atax-free transaction), redemption, retirement or other taxable disposition of Notes, you will recognize taxable gain or loss equal to the difference between the U.S. dollar value of the amount realized upon such disposition (less any portion allocable to accrued and unpaid interest, which will be taxable as described above under the heading “—Interest Payments”) and your tax basis in the Notes. Any such gain or loss will be foreign currency exchange gain or loss to the extent of the difference between the U.S. dollar value of the euro purchase price of the Notes, as determined on the date of disposition (or on the settlement date, if the Notes are traded on the NYSE or another established securities market and you are either a cash basis U.S. Holder or an electing accrual basis U.S. Holder), and the U.S. dollar value of such euro purchase price, as determined using the spot rate of exchange on the date when you acquired the Note (or on the settlement date, if the Notes are traded on an established securities market and you are either a cash basis U.S. Holder or an electing accrual basis U.S. Holder).

Any such foreign currency exchange gain or loss generally will be treated as ordinary income or loss (but only to the extent of the total gain or loss realized on the transaction), and will generally constitute U.S. source income or loss for foreign tax credit limitation purposes.

Any gain or loss in excess of foreign currency exchange gain or loss will be capital gain or loss and will be long-term capital gain or loss if your holding period in the Notes exceeds one year. For individuals and certain estates and trusts, long-term capital gains are eligible for reduced rates of taxation. The deductibility of capital losses is subject to limitations.

Receipt and Disposition of Euros

Euros received as payment on the Notes or on a taxable sale, exchange, redemption, retirement or other disposition of Notes will have a tax basis equal to their U.S. dollar value at the time such payment is received or at the time of such disposition, as the case may be. Any foreign currency exchange gain or loss recognized on a taxable disposition of euros (including if you use euros to acquire Notes) generally will be ordinary income or loss, and will generally constitute U.S. source income or loss for foreign tax credit purposes.

Medicare Tax

Non-corporate U.S. Holders that are individuals, estates or trusts and whose income exceeds certain thresholds generally are subject to a 3.8% tax on all or a portion of their net investment income, which may include their gross dividend income and net gains from the disposition of the Notes. A United States person that is an individual, estate or trust is encouraged to consult its tax advisors regarding the applicability of this Medicare tax to its income and gains in respect of any investment in the Notes.

Information Reporting and Backup Withholding

In general, information reporting, on IRS Form 1099, will apply to any payments made on the Notes and the proceeds of any sale or other disposition of the Notes unless such holder is an exempt recipient such as a corporation. Backup withholding (currently at a 24% rate) may apply to such payments if a holder of Notes fails to provide a taxpayer identification number (generally on an IRS FormW-9) or certification of other exempt status or fails to report in full interest income.

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Backup withholding is not an additional tax. A U.S. Holder generally may obtain a refund of any amounts withheld under the backup withholding rules that exceed the U.S. Holder’s income tax liability by timely filing a refund claim with the IRS.

Finally, you may be required to report any foreign currency exchange loss that meets a minimum threshold level with respect to the Notes as a “reportable transaction” on IRS Form 8886. You should consult your own tax advisor regarding your information reporting obligations with respect to the Notes.

Non-U.S. Holders

This section applies to you only if you are aNon-U.S. Holder. For purposes of this discussion, you are a“Non-U.S. Holder” if you are a beneficial owner of the Notes and you are, for U.S. federal income tax purposes:

but does not include you if you are an individual present in the United States for 183 days or more in the taxable year of disposition of the Notes and you are not otherwise a resident of the United States for U.S. federal income tax purposes. If you are such an individual, you should consult your tax advisor regarding the U.S. federal income tax consequences of the sale, exchange, redemption or other disposition of the Notes.

Interest Payments

Subject to the discussions below concerning FATCA withholding, effectively connected income and information reporting and backup withholding, payments of interest on the Notes by us or any paying agent to you will be exempt from U.S. federal withholding tax, if you:

If you do not qualify for this exemption from U.S. federal withholding tax you may also be entitled to an exemption from, or reduction of, U.S. withholding tax if you are entitled to the benefits of an income tax treaty under which interest is exempt from, or eligible for a reduced rate of, U.S. federal withholding tax, and you (or your agent) provide to the applicable withholding agent a properly executed IRS FormW-8BEN or IRS FormW-8BEN-E, as applicable (or an appropriate substitute form), claiming eligibility for the benefits of the income tax treaty with respect to interest payments.

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Otherwise, payments of interest are generally subject to U.S. federal withholding tax at a rate of 30%. No U.S. federal withholding tax applies, however, if interest on your Note is effectively connected with the conduct by you of a trade or business in the United States (and, if required by an applicable income tax treaty, the interest is attributable to a permanent establishment or fixed base maintained in the United States), provided that you (or your agent) have provided a properly executed IRS FormW-8ECI. With respect to “effectively connected” interest, you generally will be taxed on a net income basis in the same manner as if you were a U.S. Holder (See “—U.S. Holders” above). If you are a corporateNon-U.S. Holder, you may, under certain circumstances, be subject to an additional branch profits tax at a 30% rate (or such lower rate under an applicable income tax treaty) with respect to your “effectively connected” interest.

Sale or Other Taxable Disposition of the Notes

Subject to the discussions below concerning FATCA withholding and information reporting and backup withholding, except with respect to accrued and unpaid interest (which is subject to the rules discussed above under “—Interest Payments”), you generally will not be subject to U.S. federal income tax on gain recognized on a sale, exchange, redemption, retirement or other disposition of the Notes, unless the gain is effectively connected with the conduct of a trade or business in the United States, subject to an applicable income tax treaty providing otherwise.

If you are engaged in a trade or business in the United States and you recognize gain on a sale or other disposition of the Notes that is effectively connected with that trade or business (and, if required by an applicable income tax treaty, the gain is attributable to a permanent establishment or fixed base maintained in the United States), you generally will be taxed on a net income basis with respect to such gain as if you were a U.S. Holder (See “—U.S. Holders” above). If you are a corporateNon-U.S. Holder, you may, under certain circumstances, be subject to an additional “branch profits tax” at a 30% rate (or at a lower rate under an applicable income tax treaty) on your “effectively connected” gains. You should consult your tax advisor with respect to the tax consequences of the ownership and disposition of the Notes.

U.S. Federal Estate Tax

If you are an individual and, for estate tax purposes, are not a citizen or resident of the United States at the time of your death, your Notes will not be includable in your gross estate for U.S. estate tax purposes, provided that at the time of your death (i) you do not actually or constructively own 10% or more of the combined voting power of all classes of our stock entitled to vote and (ii) payments with respect to such Notes would not have been effectively connected with your conduct of a trade or business in the United States. In addition, the U.S. estate tax may not apply with respect to such Notes under the terms of an applicable estate tax treaty.

FATCA Withholding

Sections 1471 through 1474 of the Code and applicable Treasury Regulations thereunder (commonly referred to as “FATCA”) impose a 30% withholding tax on “withholdable payments” made to a foreign entity unless the foreign entity is:

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Withholdable payments include interest paid with respect to the Notes and the gross proceeds of the sale or other taxable disposition of the Notes. However, proposed Treasury Regulations have been issued that, if finalized, will provide for the repeal of the 30% withholding tax that would have applied to payments of gross proceeds from the sale, exchange or other disposition of the Notes. According to the preamble to the proposed regulations, taxpayers may rely upon this repeal until the issuance of final regulations.

Prospective investors should consult with their own tax advisors regarding the possible implications of FATCA with respect to an investment in the Notes. In addition, prospective investors whose Notes will be held through a bank or broker should consult their bank or broker about the likelihood that payments to the bank or broker (for credit to such investors) will become subject to withholding in the payment chain. Investors in the Notes could be affected by FATCA withholding if a financial institution or other intermediary in the payment chain, such as a bank or broker, through which they hold the Notes is subject to withholding because it fails to comply with the reporting requirements.

Information Reporting and Backup Withholding

Information returns will be filed with the IRS in connection with interest payments on the Notes toNon-U.S. Holders. Unless you provide documentation to establish that you are not a United States person or otherwise establish an exemption, and the payor or broker does not have actual knowledge or reason to know that you are a United States person, information returns will generally be filed with the IRS reporting your proceeds from a sale or other disposition (including a retirement or redemption) of the Notes within the United States or effected by or through the U.S. office of any broker and backup withholding (currently at a rate of 24%) will generally be imposed on interest payments on the Notes or on the proceeds from a sale or other taxable disposition of the Notes within the United States or effected by or through the U.S. office of any broker. Payment of the proceeds from the sale of the Notes effected at a foreign office of a broker generally will not be subject to information reporting or backup withholding with certain exceptions. Copies of the information returns may also be made available to the tax authorities in the country in which the respectiveNon-U.S. Holder resides under the provisions of an applicable income tax treaty.

Backup withholding is not an additional tax. By timely providing certain required information to the IRS, the amount withheld under the backup withholding rules generally will be allowable as a credit against your U.S. federal income tax liability.

THE FOREGOING DISCUSSION IS FOR GENERAL INFORMATION PURPOSES ONLY AND IS NOT A SUBSTITUTE FOR AN INDIVIDUAL ANALYSIS OF THE TAX CONSEQUENCES RELATED TO THE NOTES TO YOU. WE URGE YOU TO CONSULT A TAX ADVISOR REGARDING THE PARTICULAR FEDERAL, STATE, LOCAL AND FOREIGN TAX CONSEQUENCES RELATED TO THE NOTES AS APPLICABLE TO YOU.

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UNDERWRITING

BNP Paribas, Citigroup Global Markets Limited, Deutsche Bank AG, London Branch and Merrill Lynch International are acting as representatives of each of the underwriters named below. Subject to the terms and conditions set forth in an underwriting agreement among us and the underwriters, we have agreed to sell to the underwriters, and each of the underwriters has agreed, severally and not jointly, to purchase from us, the principal amount of notes set forth opposite its name below.

Subject to the terms and conditions set forth in the underwriting agreement, the underwriters have agreed, severally and not jointly, to purchase all of the Notes sold under the underwriting agreement if any of these notes are purchased. If an underwriter defaults, the underwriting agreement provides that the purchase commitments of the nondefaulting underwriters may be increased or the underwriting agreement may be terminated.

We have agreed to indemnify the underwriters and their controlling persons against certain liabilities in connection with this offering, including liabilities under the Securities Act, or to contribute to payments the underwriters may be required to make in respect of those liabilities.

The underwriters are offering the Notes, subject to prior sale, when, as and if issued to and accepted by them, subject to approval of legal matters by their counsel, including the validity of the Notes, and other conditions contained in the underwriting agreement, such as the receipt by the underwriters of officer’s certificates and legal opinions. The underwriters reserve the right to withdraw, cancel or modify offers to the public and to reject orders in whole or in part.

Commissions and Discounts

The representatives have advised us that the underwriters propose initially to offer the Notes to the public at the public offering price set forth on the cover page of this prospectus supplement and to certain dealers at such price less a concession not in excess of 0.225% of the principal amount in the case of the 2028 Notes and 0.300% of the principal amount in the case of the 2030 Notes. In addition, the underwriters may allow, and those selected dealers may reallow, a selling concession of up to 0.200% of the principal amount in the case of the 2028 Notes and 0.200% of the principal amount in the case of the 2030 Notes, on sales to other dealers. After the initial offering, the public offering price, concession or other selling terms of the offering may be changed.

The expenses of the offering, not including the underwriting discounts, are estimated at €1.8 million and are payable by us.

New Issues of Notes

The Notes are a new issue of securities with no established trading markets. We do not intend to apply for listing of the Notes on any national securities exchange or for inclusion of the Notes on any automated dealer quotation system. We have been advised by the underwriters that they presently intend to make markets in the Notes after completion of the offering. However, they are under no obligation to do so and may discontinue any

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market-making activities at any time without any notice. We cannot assure the liquidity of the trading for any of the Notes or that active public markets for the Notes will develop. If active public trading markets for the Notes do not develop, the market prices and liquidity of the Notes may be adversely affected. If the Notes are traded, they may trade at a discount from their initial offering prices, depending on prevailing interest rates, the markets for similar securities, our operating performance and financial condition, general economic conditions and other factors.

Settlement

We expect that delivery of the Notes will be made to investors on or about the date specified on the cover page of this prospectus supplement, which will be the fourth business day following the date of this prospectus supplement (such settlement being referred to as “T+4”). Under Rule15c6-1 under the Securities Exchange Act of 1934, trades in the secondary market are required to settle in two business days, unless the parties to any such trade expressly agree otherwise. Accordingly, purchasers who wish to trade notes prior to the delivery of the Notes hereunder will be required, by virtue of the fact that the Notes initially settle in T+4, to specify an alternate settlement arrangement at the time of any such trade to prevent a failed settlement. Purchasers of the Notes who wish to trade the Notes prior to their date of delivery hereunder should consult their advisors.

No Sales of Similar Securities

We have agreed that we will not, during the period commencing on the date of this prospectus supplement and ending on the date that the Notes are delivered by the underwriters to purchasers, without first obtaining the prior written consent of the representatives, directly or indirectly, issue, sell, offer to contract or grant any option to sell, pledge, transfer or otherwise dispose of, any debt securities or securities exchangeable for or convertible into debt securities, except for the Notes sold to the underwriters pursuant to the underwriting agreement and the sale of the U.S. notes as described under “Summary-Concurrent U.S. Debt Offering.”

Short Positions

In connection with the offering, the underwriters may purchase and sell the Notes in the open market. These transactions may include short sales and purchases on the open market to cover positions created by short sales. Short sales involve the sale by the underwriters of a greater principal amount of notes than they are required to purchase in the offering. The underwriters must close out any short position by purchasing notes in the open market. A short position is more likely to be created if the underwriters are concerned that there may be downward pressure on the prices of the Notes in the open market after pricing that could adversely affect investors who purchase in the offering.

Similar to other purchase transactions, the underwriters’ purchases to cover the syndicate short sales may have the effect of raising or maintaining the market price of the Notes or preventing or retarding a decline in the market prices of the Notes. As a result, the prices of the Notes may be higher than the prices that might otherwise exist in the open market.

Neither we nor any of the underwriters make any representation or prediction as to the direction or magnitude of any effect that the transactions described above may have on the prices of the Notes. In addition, neither we nor any of the underwriters make any representation that the representatives will engage in these transactions or that these transactions, once commenced, will not be discontinued without notice.

Conflict of Interest

As described in “Use of Proceeds,” the net proceeds of this offering may be used to repay a portion of our outstanding indebtedness. Certain of the underwriters and their affiliates may therefore receive 5% or more

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of the net proceeds of this offering due to the repayment of such indebtedness. Therefore, such underwriters are deemed to have a conflict of interest within the meaning of FINRA Rule 5121. Accordingly, this offering will be conducted in accordance with FINRA Rule 5121. In accordance with that rule, no “qualified independent underwriter” is required because the Notes offered are investment grade rated, as that term is defined in the rule.

Other Relationships

Some of the underwriters and their affiliates have engaged in, and may in the future engage in, investment banking and other commercial dealings in the ordinary course of business with us or our affiliates. They have received, or may in the future receive, customary fees and commissions for these transactions.

In addition, in the ordinary course of their business activities, the underwriters and their affiliates may make or hold a broad array of investments and actively trade debt and equity securities (or related derivative securities) and financial instruments (including bank loans) for their own account and for the accounts of their customers. Such investments and securities activities may involve securities and/or instruments of ours or our affiliates. Certain of the underwriters or their affiliates that have a lending relationship with us routinely hedge their credit exposure to us consistent with their customary risk management policies. Typically, such underwriters and their affiliates would hedge such exposure by entering into transactions which consist of either the purchase of credit default swaps or the creation of short positions in our securities, including potentially the Notes offered hereby. Any such short positions could adversely affect future trading prices of the Notes offered hereby. The underwriters and their affiliates may also make investment recommendations and/or publish or express independent research views in respect of such securities or financial instruments and may hold, or recommend to clients that they acquire, long and/or short positions in such securities and instruments.

European Economic Area and the United Kingdom

The Notes are not intended to be offered, sold or otherwise made available to and should not be offered, sold or otherwise made available to any retail investor in the European Economic Area (“EEA”) or in the United Kingdom (“UK”). For these purposes, a retail investor means a person who is one (or more) of: (i) a retail client as defined in point (11) of Article 4(1) of Directive 2014/65/EU (as amended, “MiFID II”); or (ii) a customer within the meaning of Directive (EU) 2016/97 (as amended, the “Insurance Distribution Directive”), where that customer would not qualify as a professional client as defined in point (10) of Article 4(1) of MiFID II. Consequently no key information document required by Regulation (EU) No 1286/2014 (as amended, the “PRIIPs Regulation”) for offering or selling the Notes or otherwise making them available to retail investors in the EEA or in the UK has been prepared and therefore offering or selling the Notes or otherwise making them available to any retail investor in the EEA or in the UK may be unlawful under the PRIIPs Regulation. This prospectus supplement and the accompanying prospectus have been prepared on the basis that any offer of Notes in any Member State of the EEA or in the UK will be made pursuant to an exemption under the Prospectus Regulation from the requirement to publish a prospectus for offers of Notes. Neither this prospectus supplement nor the accompanying prospectus is a prospectus for the purposes of the Prospectus Regulation.

References to Regulations or Directives include, in relation to the UK, those Regulations or Directives as they form part of UK domestic law by virtue of the European Union (Withdrawal) Act 2018 or have been implemented in UK domestic law, as appropriate.

The above selling restriction is in addition to any other selling restrictions set out below.

Notice to Prospective Investors in the United Kingdom

This document is for distribution only to persons who (i) have professional experience in matters relating to investments and who qualify as investment professionals within the meaning of Article 19(5) of the

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Financial Services and Markets Act 2000 (Financial Promotion) Order 2005 (as amended, the “Financial Promotion Order”), (ii) are persons falling within Article 49(2)(a) to (d) (“high net worth companies, unincorporated associations etc.”) of the Financial Promotion Order, (iii) are outside the United Kingdom, or (iv) are persons to whom an invitation or inducement to engage in investment activity (within the meaning of Section 21 of the Financial Services and Markets Act 2000, as amended (“FSMA”)) in connection with the issue or sale of any securities may otherwise lawfully be communicated or caused to be communicated (all such persons together being referred to as “relevant persons”). This document is directed only at relevant persons and must not be acted on or relied on by persons who are not relevant persons. Any investment or investment activity to which this document relates is available only to relevant persons and will be engaged in only with relevant persons.

Notice to Prospective Investors in Switzerland

This prospectus supplement does not constitute an issue prospectus pursuant to Article 652a or Article 1156 of the Swiss Code of Obligations and the Notes will not be listed on the SIX Swiss Exchange. Therefore, this prospectus supplement may not comply with the disclosure standards of the listing rules (including any additional listing rules or prospectus schemes) of the SIX Swiss Exchange. Accordingly, the Notes may not be offered to the public in or from Switzerland, but only to a selected and limited circle of investors who do not subscribe to the Notes with a view to distribution. Any such investors will be individually approached by the underwriters from time to time.

Notice to Prospective Investors in Canada

The Notes may be sold only to purchasers purchasing, or deemed to be purchasing, as principal that are accredited investors, as defined in National Instrument45-106 Prospectus Exemptions or subsection 73.3(1) of the Securities Act (Ontario), and are permitted clients, as defined in National Instrument31-103 Registration Requirements, Exemptions and Ongoing Registrant Obligations. Any resale of the Notes must be made in accordance with an exemption from, or in a transaction not subject to, the prospectus requirements of applicable securities laws.

Securities legislation in certain provinces or territories of Canada may provide a purchaser with remedies for rescission or damages if this prospectus supplement (including any amendment thereto) contains a misrepresentation, provided that the remedies for rescission or damages are exercised by the purchaser within the time limit prescribed by the securities legislation of the purchaser’s province or territory. The purchaser should refer to any applicable provisions of the securities legislation of the purchaser’s province or territory for particulars of these rights or consult with a legal advisor.

Pursuant to section 3A.3 (or, in the case of securities issued or guaranteed by the government of anon-Canadian jurisdiction, section 3A.4) of National Instrument33-105 Underwriting Conflicts (NI33-105), the underwriters are not required to comply with the disclosure requirements of NI33-105 regarding underwriter conflicts of interest in connection with this offering.

Notice to Prospective Investors in Hong Kong

Notice to Prospective Investors in Hong Kong The Notes have not been and will not be offered or sold in Hong Kong Special Administrative Region of the People’s Republic of China (“Hong Kong”) by means of any document other than (i) in circumstances which do not constitute an offer to the public within the meaning of the Companies (Winding Up and Miscellaneous Provisions) Ordinance (Cap.32, Laws of Hong Kong) (the “CO”), or (ii) to “professional investors” within the meaning of the Securities and Futures Ordinance (Cap.571, Laws of Hong Kong) (the “SFO”) and any rules made thereunder, or (iii) in other circumstances which do not result in the document being a “prospectus” within the meaning of the CO, and no advertisement, invitation or document

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relating to the Notes has been or will be issued or in the possession of any person for the purpose of issue (in each case whether in Hong Kong or elsewhere), which is directed at, or the contents of which are likely to be accessed or read by, the public in Hong Kong (except if permitted to do so under the securities laws of Hong Kong) other than with respect to Notes which are or are intended to be disposed of only to persons outside Hong Kong or only to “professional investors” within the meaning of the SFO and any rules made thereunder.

The contents of this document have not been reviewed by any regulatory authority in Hong Kong. You are advised to exercise caution in relation to the offering. If you are in any doubt about any of the contents of this document, you should obtain independent professional advice.

Notice to Prospective Investors in Japan

The Notes have not been and will not be registered under the Financial Instruments and Exchange Act of Japan (Act No. 25 of 1948, as amended (the “FIEA”)). The Notes may not be offered or sold, directly or indirectly, in Japan or to, or for the benefit of, any resident of Japan (including any person resident in Japan or any corporation or other entity organized under the laws of Japan), or to others forre-offering or resale, directly or indirectly, in Japan or to or for the benefit of any resident of Japan, except pursuant to an exemption from the registration requirements of the FIEA and otherwise in compliance with any relevant laws and regulations of Japan.

Notice to Prospective Investors in Korea

The Notes may not be offered, sold and delivered directly or indirectly, or offered or sold to any person for reoffering or resale, directly or indirectly, in the Republic of Korea (“Korea”) or to any resident of Korea except pursuant to the applicable laws and regulations of Korea, including the Financial Investment Services and Capital Markets Act and the Foreign Exchange Transaction Law and the decrees and regulations thereunder. The Notes have not been and will not be registered with the Financial Services Commission of Korea for public offering in Korea. Furthermore, the Notes may not be resold to Korean residents unless the purchaser of the Notes complies with all applicable regulatory requirements (including but not limited to government approval requirements under the Foreign Exchange Transaction Law and its subordinate decrees and regulations) in connection with the purchase of the Notes.

Notice to Prospective Investors in Singapore

This prospectus supplement and the accompanying prospectus have not been registered as a prospectus with the Monetary Authority of Singapore. Accordingly, this prospectus supplement, the accompanying prospectus and any other document or material in connection with the offer or sale, or invitation for subscription or purchase, of the Notes may not be circulated or distributed, nor may the Notes be offered or sold, or be made the subject of an invitation for subscription or purchase, whether directly or indirectly, to persons in Singapore other than (i) to an institutional investor (as defined in Section 4A of the Securities and Futures Act, Chapter 289 of Singapore (the “SFA”)), (ii) to a relevant person (as defined in Section 275(2) of the SFA) pursuant to Section 275(1) of the SFA, or any person pursuant to Section 275(1A) of the SFA, and in accordance with the conditions specified in Section 275 of the SFA or (iii) otherwise pursuant to, and in accordance with the conditions of, any other applicable provision of the SFA, in each case subject to the conditions set forth in the SFA.

Where the Notes are subscribed or purchased under Section 275 of the SFA by a relevant person which is a corporation (which is not an accredited investor as defined in Section 4A of the SFA) the sole business of which is to hold investments and the entire share capital of which is owned by one or more individuals, each of whom is an accredited investor, the securities (as defined in Section 239(1) of the SFA) of that corporation shall not be transferable for 6 months after that corporation has acquired the Notes under Section 275 of the SFA except: (a) to an institutional investor under Section 274 of the SFA or to a relevant person (as defined in

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Section 275(2) of the SFA), (b) where such transfer arises from an offer in that corporation’s securities pursuant to Section 275(1A) of the SFA, (c) where no consideration is or will be given for the transfer, (d) where the transfer is by operation of law, (e) as specified in Section 276(7) of the SFA, or (6) as specified in Regulation 32 of the Securities and Futures (Offers of Investments) (Shares and Debentures) Regulations 2005 of Singapore (“Regulation 32”).

Where the Notes are subscribed or purchased under Section 275 by a relevant person which is:

(a) a corporation (which is not an Accredited Investor) the sole business of which is to hold investments and the entire share capital of which is owned by one or more individuals, each of whom is an Accredited Investor; or

(b) a trust (where the trustee is not an accredited investor) whose sole purpose is to hold investments and each beneficiary is an Accredited Investor, then securities or securities-based derivatives contracts (each as defined in Section 2(1) of the SFA) of that corporation or the beneficiaries’ rights and interest in that trust shall not be transferable for 6 months after that corporation or that trust has acquired the Notes under Section 275 except: (i) to an Institutional Investor under Section 274 of the SFA or to a Relevant Person, or any person pursuant to Section 275(1A) (in the case of that corporation) or Section 276(4)(i)(B) (in the case of that trust), and in accordance with the conditions specified in Section 275 of the SFA; (ii) where no consideration is given for the transfer; or (iii) by operation of law.

Singapore Securities and Futures Act Product Classification—Solely for the purposes of its obligations pursuant to sections 309B(1)(a) and 309B(1)(c) of the SFA, the Company has determined, and hereby notifies all relevant persons (as defined in Section 309A of the SFA) that the Notes are “prescribed capital markets products” (as defined in the Securities and Futures (Capital Markets Products) Regulations 2018) and Excluded Investment Products (as defined in MAS Notice SFA04-N12: Notice on the Sale of Investment Products and MAS NoticeFAA-N16: Notice on Recommendations on Investment Products).

Notice to Prospective Investors in Taiwan

The Notes have not been and will not be registered or filed with, or approved by, the Financial Supervisory Commission of Taiwan and/or any other regulatory authority of Taiwan pursuant to relevant securities laws and regulations and may not be sold, issued or offered within Taiwan through a public offering or in circumstances which could constitute an offer within the meaning of the Securities and Exchange Act of Taiwan or relevant laws and regulations that require a registration, filing or approval of the Financial Supervisory Commission of Taiwan and/or other regulatory authority of Taiwan. No person or entity in Taiwan has been authorized to offer or sell the Notes in Taiwan.

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LEGAL MATTERS

The validity of the Notes offered hereby will be passed upon for us by Covington & Burling LLP, Washington, D.C. Davis Polk & Wardwell LLP, New York, New York, will pass on certain legal matters for the underwriters.

EXPERTS

The consolidated financial statements, and the related consolidated financial statement schedule for the fiscal year ended September 30, 2019 incorporated in this prospectus supplement by reference from our Annual Report onForm 10-K for the fiscal year ended September 30, 2019, and the effectiveness of our internal control over financial reporting as of September 30, 2019, have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their report, which is incorporated herein by reference. Such consolidated financial statements and financial statement schedule have been so incorporated in reliance upon the reports of such firm given upon their authority as experts in accounting and auditing.

The consolidated financial statements, and the related consolidated financial statement schedule as of September 30, 2018 and for the fiscal years ended September 30, 2018 and September 30, 2017, have been incorporated by reference in this prospectus supplement in reliance upon the reports of KPMG LLP, independent registered public accounting firm, incorporated by reference herein and upon the authority of said firm as experts in accounting and auditing.

WHERE YOU CAN FIND MORE INFORMATION

The SEC allows us to “incorporate by reference” the information we file with the SEC under the Exchange Act, which means that we can disclose important information to you by referring you to those documents. Information incorporated by reference is considered to be a part of this prospectus supplement, and information that we file later with the SEC will automatically update, modify and, where applicable, supersede this information. The following documents that we have previously filed with the SEC (FileNo. 001-04534) are incorporated by reference herein:

In addition, all reports and other documents that we subsequently file pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act prior to the termination of this offering, but excluding any information furnished to, rather than filed with, the SEC, will be deemed to be incorporated by reference into this prospectus supplement and the accompanying prospectus and deemed to be part of this prospectus supplement and the accompanying prospectus from the time of the filing of such reports and documents.

We encourage you to read the SEC filings incorporated by reference into this prospectus supplement before investing in any of our securities. Our SEC filings are available to the public over the internet on the SEC’s website at www.sec.gov. We also make available free of charge our SEC filings through our website, www.airproducts.com, as soon as reasonably practical after they are filed with the SEC. The information contained in, or that can be accessed through, our website is not a part of, or incorporated by reference in, this prospectus supplement.

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We will provide to each person, including any beneficial owner, to whom this prospectus is delivered, upon written or oral request and without charge, a copy of the documents referred to above that we have incorporated by reference into this prospectus supplement and a copy of the registration statement of which this prospectus is a part. We will not provide exhibits to such documents unless such exhibits are specifically incorporated by reference into this prospectus supplement or accompanying prospectus. You can request copies of such documents if you call or write us at the following address or telephone number:

Corporate Secretary’s Office

Air Products and Chemicals, Inc.

7201 Hamilton Boulevard

Allentown, Pennsylvania 18195-1501

Telephone: (610)481-4911

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Prospectus

AIR PRODUCTS AND CHEMICALS, INC.

SENIOR DEBT SECURITIES

PREFERRED STOCK

DEPOSITARY SHARES

COMMON STOCK

WARRANTS

Investing in these securities involves risks. You should carefully consider the risk factors incorporated herein by reference and described under the heading “Risk Factors” beginning on page 4.

We may offer, issue and sell these securities, together or separately, from time to time, in one or more offerings. This prospectus describes some of the general terms that may apply to the offered securities. The specific prices and terms of any securities to be offered will be described in supplements to this prospectus, which may also add, update or change information contained in this prospectus. You should read this prospectus and any applicable prospectus supplement carefully before you make your investment decision.

We may offer and sell these securities to or through one or more underwriters, dealers and agents, or directly to purchasers, on a continuous or delayed basis. If required, the prospectus supplement for each offering of securities will describe the plan of distribution for that offering. For general information about the distribution of securities offered, please see “Plan of Distribution” in this prospectus.

Our common stock is listed on the New York Stock Exchange under the symbol “APD.” If we decide to seek a listing of any other securities offered by this prospectus, the applicable prospectus supplement will disclose the exchange or market on which such securities will be listed or where we have made an application for listing, as the case may be.

NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE ACCURACY OR ADEQUACY OF THE DISCLOSURES IN THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

The date of this prospectus is November 22, 2017

TABLE OF CONTENTS

ABOUT THIS PROSPECTUS

This prospectus is part of an “automatic shelf” registration statement that we have filed with the Securities and Exchange Commission (the “SEC” or the “Commission”) as a “well-known seasoned issuer” as defined in Rule 405 under the Securities Act of 1933, as amended (the “Securities Act”), using a “shelf” registration process. Under this process, we may sell from time to time any combination of the securities described in this prospectus. This prospectus only provides you with a general description of the securities that we may offer. Each time we sell securities, we will provide a supplement to this prospectus that contains specific information about the terms of that offering, including the specific amounts, prices and terms of the securities offered. The prospectus supplement may also add, update or change information contained in this prospectus. You should carefully read both this prospectus, any accompanying prospectus supplement and any free writing prospectus prepared by or on behalf of us, together with the additional information described under the heading “Where You Can Find More Information.”

You should rely only on the information incorporated by reference or provided in this prospectus, any accompanying prospectus supplement and any free writing prospectus prepared by or on behalf of us. We have not authorized anyone to provide you with different information. We are not making offers to sell the securities in any jurisdiction in which an offer or solicitation is not authorized or in which the person making such offer or solicitation is not qualified to do so or to anyone to whom it is unlawful to make an offer or solicitation.

You should assume that the information in this prospectus or any prospectus supplement or free writing prospectus, as well as the information incorporated by reference herein or therein, is accurate only as of the date of the documents containing the information. Our business, financial condition, results of operations and prospects may have changed since those dates.

As used in this prospectus, unless the context indicates otherwise, the “Company,” “we,” “us” and “our” refer to Air Products and Chemicals, Inc.

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WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly and current reports, proxy statements and other information with the SEC under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). You may read and copy any document we file at the SEC’s Public Reference Room, 450 Fifth Street, N.W., Washington, D.C. 20549. You may call the SEC at1-800-SEC-0330 for further information on the SEC’s Public Reference Room. You may also access our SEC filings at the SEC’s web site at http://www.sec.gov.

The SEC allows us to “incorporate by reference” into this prospectus and any accompanying prospectus supplement the information we file with it, which means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is considered to be part of this prospectus and any accompanying prospectus supplement, except for any information superseded by information contained directly in this prospectus, any accompanying prospectus supplement, any subsequently filed document deemed incorporated by reference or any free writing prospectus prepared by or on behalf of us. We incorporate by reference the documents listed below and their amendments (except information furnished under Item 2.02 or Item 7.01 of Form8-K, which is neither deemed filed nor incorporated by reference) and any future filings made with the SEC under Section 13(a), 13(c), 14 or 15(d) of the Exchange Act until the offering is completed or terminated:

You may request a copy of these filings at no cost, by writing to or telephoning us at:

Corporate Secretary’s Office

Air Products and Chemicals, Inc.

7201 Hamilton Boulevard

Allentown, Pennsylvania 18195-1501

Telephone: (610)481-4911

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus and any accompanying prospectus supplement contains or incorporates by reference “forward-looking statements” within the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, including statements about business outlook. These forward-looking statements are based on management’s reasonable expectations and assumptions as of the date of the statement. Actual performance and financial results may differ materially from projections and estimates expressed in the forward-looking statements because of many factors not anticipated by management, including, without limitation, the risks described in this prospectus, any accompanying prospectus supplement and any documents incorporated by reference, including the “Risk Factors” sections of this prospectus, any accompanying prospectus supplement and our reports and other documents filed with the SEC. You are cautioned not to place undue reliance on any forward-looking statements made by us or on our behalf. Please take into account that forward-looking statements speak only as of the date of this prospectus or, in the case of any accompanying prospectus supplement or documents incorporated by reference, the date of any such document. We disclaim any obligation or undertaking to disseminate any updates or revisions to any forward-looking statements contained or incorporated by reference in this prospectus or any accompany prospectus supplement to reflect any change in our assumptions, beliefs or expectations or any change in events, conditions, or circumstances upon which any such forward-looking statements are based, except as required by law.

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THE COMPANY

Air Products and Chemicals, Inc., a Delaware corporation originally founded in 1940, serves energy, electronics, chemicals, metals, and manufacturing customers globally with a unique portfolio of products, services, and solutions that include atmospheric gases, process and specialty gases, equipment, and services. We are the world’s largest supplier of hydrogen and have built leading positions in growth markets such as helium and natural gas liquefaction.

Our principal executive office is located at 7201 Hamilton Boulevard, Allentown, Pennsylvania 18195-1501 and our telephone number is (610)481-4911. We maintain a website at www.airproducts.com. The information on our website is not incorporated by reference in this prospectus or any accompanying prospectus supplement, and you should not consider it a part of this prospectus or any accompanying prospectus supplement.

RISK FACTORS

Investing in our securities involves risk. See the risk factors described in our most recent Annual Report on Form10-K (together with any material changes thereto contained in subsequently filed Quarterly Reports on Form10-Q) and those contained in our other filings with the SEC that are incorporated by reference in this prospectus and any accompanying prospectus supplement. Before making an investment decision, you should carefully consider these risks as well as other information we include or incorporate by reference in this prospectus and any accompanying prospectus supplement. These risks could materially affect our business, financial condition or results of operations and cause the value of our securities to decline. You could lose all or part of your investment.

RATIOS OF EARNINGS TO FIXED CHARGES

The ratio of earnings to fixed charges is determined by dividing earnings, as adjusted, which includes income from continuing operations before taxes, fixed charges (excluding capitalized interest), capitalized interest amortized during the period, undistributed earnings of less-than-fifty percent-owned affiliates and noncontrolling interest inpre-tax income of subsidiaries that have not incurred fixed charges, by fixed charges. Fixed charges consist of interest on all indebtedness plus that portion of operating lease rentals representative of the interest factor (deemed to be 21% of operating lease rentals).

USE OF PROCEEDS

Unless otherwise specified in the applicable prospectus supplement, the net proceeds we receive from the sale of the securities offered by this prospectus and the accompanying prospectus supplement will be used for general corporate purposes. General corporate purposes may include repayment or refinancing of debt, including repayment of commercial paper, investments in or extensions of credit to our subsidiaries, redemption of common stock or preferred stock and the financing of possible acquisitions or business expansion. Pending any specific application, we may initially invest funds in short-term marketable securities or apply them to the reduction of short-term indebtedness.

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DESCRIPTION OF SENIOR DEBT SECURITIES

The following description of the terms of the debt securities sets forth general terms that may apply to the debt securities. The particular terms of any debt securities will be described in the prospectus supplement relating to those debt securities.

The debt securities will be our senior debt securities. The debt securities will be issued under an indenture to be entered into between us and The Bank of New York Mellon Trust Company, N.A., as trustee (the “Indenture”). The Indenture is subject to and governed by the Trust Indenture Act of 1939, as amended.

The following is a summary of the most important provisions of the Indenture. A copy of the form of the Indenture is an exhibit to the registration statement of which this prospectus is a part. Section references below are to the section in the Indenture. The referenced sections of the Indenture are incorporated by reference.

General

The Indenture does not limit the amount of debt securities that we may issue. The Indenture provides that debt securities may be issued up to the principal amount authorized by us from time to time. The debt securities will be unsecured and will have the same rank as all of our other unsecured and unsubordinated debt, unless otherwise set forth in the specific terms of a series of debt securities issued under the Indenture.

The debt securities may be issued in one or more separate series. The prospectus supplement relating to the particular series of debt securities being offered will specify the particular amounts, prices and terms of those debt securities. These terms may include:

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(Section 2.3)

Unless otherwise specified in the prospectus supplement, debt securities denominated in U.S. dollars will be issued in denominations of $2,000 or an integral multiple of $1,000. (Section 2.7)

We may issue some of the debt securities as original issue discount debt securities. Original issue discount securities bear no interest or bear interest at below-market rates and will be sold at a discount below their stated principal amount.

Certain Covenants of the Company

Limitation on Liens — Subject to the exceptions set forth below under “Exempted Indebtedness,” we covenant that we will not create or assume, nor will we permit any Restricted Subsidiary (as hereinafter defined) to create or assume, any

(together, we refer to these transactions as “liens”) of or upon any Principal Property (as defined below) or shares of capital stock or indebtedness of any Restricted Subsidiary, whether owned at the date of the Indenture or thereafter acquired, in each case securing any new Debt (as hereinafter defined) incurred or guaranteed by us or any Restricted Subsidiary, without equally and ratably securing the outstanding debt securities for so long as such other Debt is secured. This restriction will not apply to certain permitted liens, including the following:

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Any lien created for the benefit of the holders of the debt securities of any series pursuant to this covenant will be deemed automatically and unconditionally released and discharged upon the release and discharge of the applicable lien described in the first paragraph of this covenant without any further action on the part of the holders or us or any Restricted Subsidiaries. (Section 3.6)

Limitations on Sale and Lease-Back Transactions— Subject to the exceptions set forth below under “Exempted Indebtedness,” sale and lease-back transactions by us or any Restricted Subsidiary of any Principal Property which has been owned and operated by us or a Restricted Subsidiary for more than 120 days are prohibited unless

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(Section 3.7)

Exempted Indebtedness — Either we or a Restricted Subsidiary may create or assume liens and enter into sale and lease-back transactions, notwithstanding the limitations outlined above, provided that at the time thereof and after giving effect thereto the aggregate amount of Debt secured by all such liens (other than such liens described in clauses (i) to (ix) in “Limitation on Liens” described above) and Attributable Debt of all such sale and lease-back transactions outstanding or to be entered into (other than any sale and lease-back transactions permitted by “Limitations on Sale and Lease-Back Transactions described above) shall not exceed 15% of Consolidated Net Tangible Assets (as hereinafter defined). (Section 3.8)

Certain Definitions

The term “Restricted Subsidiary” means any Subsidiary

The term “Principal Property” means any manufacturing plant, research facility or warehouse owned by us or any of our subsidiaries which is located within the United States and has a net book value exceeding the greater of $50,000,000 and 3% of the total assets of our company and our consolidated subsidiaries, as shown on our most recent audited consolidated balance sheet, excluding any property which the board of directors by resolution declares is not of material importance to our total business as consolidated with the business of our subsidiaries.

The term “Attributable Debt” in respect of a sale and lease-back transaction means, as to any particular lease under which any person is at the time liable, at any date as of which the amount thereof is to be determined,

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the total net amount of rent required to be paid by such person under such lease during the remaining term thereof, excluding renewals, discounted at the rate of interest implicit in the terms of such lease (as determined in good faith by us). If and to the extent the amount of any lease payment during any future period is not definitely determinable under the lease in question, the amount of such lease-payment will be estimated in such reasonable manner as we may in good faith determine. The net amount of rent required to be paid under any such lease for any such period shall be the amount of the rent payable by the lessee with respect to such period, after excluding amounts required to be paid, whether or not designated as rent or additional rent, on account of maintenance and repairs, insurance, taxes, assessments, water rates or similar charges and any amounts required to be paid by such lessee contingent upon the amount of sales, maintenance and repairs, insurance, taxes, assessments, water rates or similar charges. In the case of any lease which is terminable by the lessee upon the payment of a penalty, such net amount may, if we so elect, also include the amount of such penalty, in which case no rent shall be considered as required to be paid under such lease subsequent to the first date upon which it may be so terminated.

The term “Consolidated Net Tangible Assets” means, as of any date of determination, the total amount of all assets appearing on our most recently available consolidated balance sheet preceding the date of determination prepared in accordance with generally accepted accounting principles in effect in the United States (after deducting related depreciation, depletion, amortization and all other valuation reserves which, in accordance with generally accepted accounting principles in effect in the United States, are set aside in connection with the business conducted),less Consolidated Current Liabilities and goodwill, trademarks, patents, unamortized debt discount and all other like segregated intangible assets properly classified as intangible assets under generally accepted accounting principles in effect in the United States, all as determined in accordance with generally accepted accounting principles in effect in the United States; provided, that Consolidated Net Tangible Assets shall be calculated after giving pro forma effect to any investments, acquisitions or dispositions occurring outside the ordinary course of business and subsequent to the date of such balance sheet, as well as any transaction giving rise to the need to calculate Consolidated Net Tangible Assets (including the application of the proceeds therefrom, as applicable).

The term “Consolidated Current Liabilities” means, as of any date of determination, the aggregate of the current liabilities of us and our consolidated Subsidiaries appearing on our most recently available consolidated balance sheet preceding the date of determination, prepared in accordance with generally accepted accounting principles in effect in the United States, excluding the amount of those liabilities which are by their terms extendable or renewable at the option of the obligor to a date more than 12 months after the date as of which the amount is being determined.

The term “Debt” means indebtedness, other than indebtedness among us and our Restricted Subsidiaries, for money borrowed by us or a Restricted Subsidiary which in accordance with generally accepted accounting principles in effect in the United States would be reflected on the balance sheet of us or such Restricted Subsidiary, as applicable, as a liability as of the date on which the Debt is to be determined; provided that if any amount of indebtedness among us and our Restricted Subsidiaries for money borrowed is transferred to any person other than us or a Restricted Subsidiary, then such indebtedness shall be deemed to be Debt issued on the date of transfer.

(Section 1.1)

Other than the restrictions on liens and sale and lease-back transactions described above, neither the Indenture nor the debt securities afford you protection in the event of a highly leveraged transaction involving us or any of our subsidiaries, including any takeover, recapitalization or other restructuring that may result in a sudden and significant decline in credit rating.

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Events of Default, Waiver and Notice

As to any series of securities, an “event of default” is defined in the Indenture as being any of the following events:

(Section 5.1)

No event of default with respect to any particular series of securities necessarily constitutes an event of default with respect to any other series of securities.

The trustee must give notice of a default of which it has received written notice to the holders of the series of debt securities on which the default exists within 90 days unless the default is cured or waived. However, the trustee may withhold this notice if the trustee considers it in the interest of the holders of securities of such series to do so. The trustee may not withhold notice in the event of a payment default with regard to principal, interest or a sinking fund. (Section 5.11)

If an event of default has occurred and is continuing:

However, upon certain conditions, past defaults of the type described in clause (i), (ii), (iii) or (vi) above may be waived by the holders of a majority in principal amount of the affected securities then outstanding (or in the case of past defaults on the type described in clause (iv) or (v) above, by the holders of a majority in principal amount of all securities then outstanding), except for defaults in

(Sections 5.1 and 5.10)

The holders of a majority in principal amount of the securities of each series affected, voting as a separate class, may direct the time, method and place of conducting any proceeding for any remedy available to

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the trustee under the Indenture, subject to certain limitations specified in the Indenture, provided that the holders of securities shall have offered to the trustee reasonable indemnity against costs, expenses and liabilities. (Sections 5.9 and 6.2(d)) We must certify to the trustee on a yearly basis as to the absence of certain defaults. (Section 3.5)

Modification of the Indenture

Together with the trustee, and subject to the consent of the holders of at least a majority of the outstanding principal amount of the outstanding debt securities of all affected series (voting separately), we may modify the Indenture or any supplement to the Indenture. Without the consent of each affected holder, we may not:

(Section 8.2)

Notwithstanding the above, we may modify the Indenture or any supplement to the indenture without the consent of any holder to, among others:

Concerning the Trustee

Affiliates of The Bank of New York Mellon Trust Company, N.A., the trustee under the Indenture, also performs certain cash management services for, and has provided in the past, and may provide in the future, certain credit facilities to, us in the normal course of business.

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Defeasance of the Indenture and Securities

We may, at any time, satisfy our obligations with respect to any payments of principal, premium or interest of any security or securities of any series by depositing in trust with the trustee:

If the deposit is sufficient to make all payments of interest, principal and premium when due, our obligations with respect to such securities will be discharged and terminated (except as to certain of our obligations to the trustee), and you will be able to look only to the trust fund for any payment of principal, premium and interest on securities of such series until maturity or redemption. (Article Ten)

Under United States Federal income tax law, any deposit as described just above is viewed as a taxable exchange of the securities deposited in the trust for interests in, or for an instrument representing indebtedness of, the trust. Accordingly, at such time as we may elect to deposit securities in a trust as described above, you would be required to recognize taxable gain or loss as if the securities had been sold for an amount equal to the sum of the amount of money and the fair market value of the securities held in the trust (or, alternatively, the value of the instrument). You then may be required to include in taxable income your share of the income, gain and loss of the trust.

Alternatively, the trust might be considered a separate taxable entity, in which case you might also be taxable on original issue discount as well as interest on the instrument. You should consult your own advisors with respect to the more detailed tax consequences of such deposit and discharge, including possible liabilities with regard to tax laws other than United States Federal income tax law.

Global Securities

We may issue the debt securities of a series in whole or in part in the form of one or more global certificates that will be deposited with a depositary we will identify in a prospectus supplement. We will describe the specific terms of the depositary arrangement with respect to a series of debt securities in the accompanying prospectus supplement.

Upon the issuance of a global security, the depositary will credit, on its book-entry registration and transfer system, the respective principal amounts of that global security to the accounts of participants in the depositary. Ownership of beneficial interests in a global security will be limited to participants or persons that hold interests through participants.

So long as the depositary for a global security, or its nominee, is the registered owner of the global security, the depositary or its nominee, as the case may be, will be considered the sole owner or holder of the securities represented by that global security. Except as provided in the Indenture, owners of beneficial interests in securities represented by a global security will not

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We may, in our sole discretion, at any time determine that any series of securities issued or issuable in the form of a global security shall no longer be represented by such global security and such global security shall be exchanged for securities in definitive form pursuant to the Indenture. (Section 2.14)

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DESCRIPTION OF PREFERRED STOCK

Preferred Stock

The following is a description of general terms and provisions of the preferred stock. The particular terms of any series of preferred stock will be described in the applicable prospectus supplement.

All of the terms of the preferred stock are, or will be, contained in our Restated Certificate of Incorporation, as amended, and the certificate of amendment relating to each series of the preferred stock, which will be filed with the SEC at or prior to the time of issuance of the series of the preferred stock.

We are authorized to issue up to 25,000,000 shares of preferred stock, par value $1.00 per share. As of September 30, 2017, no shares of preferred stock were outstanding. Subject to limitations prescribed by law, the board of directors is authorized at any time to issue one or more series of preferred stock.

The board of directors is authorized to determine, for each series of preferred stock, and the prospectus supplement will set forth with respect to the series the following information:

The preferred stock, when issued, will be fully paid andnon-assessable.

Dividends

Holders of preferred stock will be entitled to receive, when, as and if declared by the board of directors, cash dividends at the rates and on the dates as set forth in the prospectus supplement. Generally, dividends on outstanding shares of preferred stock shall be declared and paid, or set apart for payment, before any dividends shall be declared or paid, or set apart for payment, on the outstanding shares of common stock with respect to the same dividend period.

Payment of dividends on any series of preferred stock may be restricted by loan agreements, indentures and other transactions we may enter into.

Liquidation

If we voluntarily or involuntarily liquidate, dissolve or wind up our affairs, the holders of each series of preferred stock will be entitled to receive the liquidation preference per share specified in the prospectus supplement plus any accrued and unpaid dividends. Holders of preferred stock will be entitled to receive these amounts before any distribution is made to the holders of common stock. If the amounts payable with respect to preferred stock are not paid in full, the holders of preferred stock will share ratably in any distribution of assets

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based upon the aggregate liquidation preference for all outstanding shares for each series. After the holders of shares of preferred stock are paid in full, they will have no right or claim to any of our remaining assets.

Neither the par value nor the liquidation preference is indicative of the price at which the preferred stock will actually trade on or after the date of issuance.

Voting

Generally, the holders of preferred stock will not be entitled to vote except as set forth in the prospectus supplement, the Restated Certificate of Incorporation, as amended, or certificate of amendment or as otherwise required by law.

No Other Rights

The shares of a series of preferred stock will not have any preemptive rights, preferences, voting powers or relative, participating, optional or other special rights except as set forth in the prospectus supplement, the Restated Certificate of Incorporation, as amended, or certificate of amendment or as otherwise required by law.

Transfer Agent and Registrar

The transfer agent for each series of preferred stock will be designated in the prospectus supplement.

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DESCRIPTION OF DEPOSITARY SHARES

Depositary Shares

We may, at our option, elect to offer fractional shares of preferred stock, rather than full shares of preferred stock. If we do, we will issue to the public receipts for depositary shares and each of these depositary shares will represent a fraction of a share of a particular series of preferred stock. Each owner of a depositary share will be entitled, in proportion to the applicable fractional interest in shares of preferred stock underlying that depositary share, to all rights and preferences of the preferred stock underlying that depositary share. Those rights include dividend, voting, redemption and liquidation rights.

The shares of preferred stock underlying the depositary shares will be deposited with a depositary under a deposit agreement between us, the depositary and the holders of the depositary receipts evidencing the depositary shares. The depositary will be a bank or trust company selected by us. The depositary will also act as the transfer agent, registrar and dividend disbursing agent for the depositary shares.

Holders of depositary receipts agree to be bound by the deposit agreement, which requires holders to take certain actions such as filing proof of residence and paying certain charges.

The following is a summary of the most important terms of the depositary shares. The deposit agreement, our Restated Certificate of Incorporation, as amended, and the certificate of amendment for the applicable series of preferred stock that are, or will be, filed with the SEC will set forth all of the terms relating to the depositary shares.

Dividends

The depositary will distribute all cash dividends or other cash distributions received in respect of the series of preferred stock underlying the depositary shares to the record holders of depositary receipts in proportion to the number of depositary shares owned by those holders on the relevant record date. The record date for the depositary shares will be the same date as the record date for the preferred stock.

In the event of a distribution other than in cash, the depositary will distribute property received by it to the record holders of depositary receipts that are entitled to receive the distribution. However, if the depositary determines that it is not feasible to make the distribution, the depositary may, with our approval, adopt another method for the distribution.

The method may include selling the property and distributing the net proceeds to the holders.

Liquidation Preference

In the event of our voluntary or involuntary liquidation, dissolution or winding up, the holders of each depositary share will be entitled to receive the fraction of the liquidation preference accorded each share of the applicable series of preferred stock, as set forth in the applicable prospectus supplement.

Redemption

If a series of preferred stock underlying the depositary shares is subject to redemption, the depositary shares will be redeemed from the proceeds received by the depositary resulting from the redemption, in whole or in part, of preferred stock held by the depositary. Whenever we redeem any preferred stock held by the depositary, the depositary will redeem, as of the same redemption date, the number of depositary shares representing the preferred stock so redeemed. The depositary will mail the notice of redemption to the record holders of the depositary receipts promptly upon receiving the notice in accordance with the procedures described in any accompany prospectus supplement.

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Voting

Upon receipt of notice of any meeting at which the holders of preferred stock are entitled to vote, the depositary will mail the information contained in the notice of meeting to the record holders of the depositary receipts underlying the preferred stock. Each record holder of those depositary receipts on the record date will be entitled to instruct the depositary as to the exercise of the voting rights pertaining to the amount of preferred stock underlying that holder’s depositary shares. The record date for the depositary shares will be the same date as the record date for the preferred stock. The depositary will try, as far as practicable, to vote the preferred stock underlying the depositary shares in accordance with the instructions of the holders of the depositary receipts. We will agree to take all action which may be deemed necessary by the depositary in order to enable the depositary to do so. The depositary will not vote the preferred stock to the extent that it does not receive specific instructions from the holders of depositary receipts.

Withdrawal of Preferred Stock

Owners of depositary shares are entitled, upon surrender of depositary receipts at the principal office of the depositary and payment of any unpaid amount due the depositary, to receive the number of whole shares of preferred stock underlying the depositary shares. Partial shares of preferred stock will not be issued. These holders of preferred stock will not be entitled to deposit the shares under the deposit agreement or to receive depositary receipts evidencing depositary shares for the preferred stock.

Amendment and Termination of Deposit Agreement

The form of depositary receipt evidencing the depositary shares and any provision of the deposit agreement may be amended at any time and from time to time by agreement between us and the depositary. However, any amendment which materially and adversely alters the rights of the holders of depositary shares, other than any change in fees, will not be effective unless the amendment has been approved by at least a majority of the depositary shares then outstanding. The deposit agreement may be terminated by us or the depositary only if:

Charges of Depositary

We will pay all transfer and other taxes and governmental charges arising solely from the existence of the depositary arrangements. We will also pay charges of the depositary in connection with the initial deposit of the preferred stock and the initial issuance of the depositary shares, any redemption of the preferred stock and all withdrawals of preferred stock by owners of depositary shares. Holders of depositary receipts will pay transfer, income and other taxes and governmental charges and certain other charges as provided in the deposit agreement to be for their accounts. In certain circumstances, the depositary may refuse to transfer depositary shares, may withhold dividends and distributions and sell the depositary shares evidenced by the depositary receipt if the charges are not paid.

Reports to Holders

The depositary will forward to the holders of depositary receipts all reports and communications we deliver to the depositary that we are required to furnish to the holders of the preferred stock. In addition, the depositary will make available for inspection by holders of depositary receipts at the principal office of the depositary, and at other places as it may from time to time deem advisable, any reports and communications we deliver to the depositary as the holder of preferred stock.

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Liability and Legal Proceedings

Neither we nor the depositary will be liable if either of us are prevented or delayed by law or any circumstance beyond our control in performing our respective obligations under the deposit agreement. Our obligations and those of the depositary will be limited to performance in good faith of our respective duties under the deposit agreement. Neither we nor the depositary will be obligated to prosecute or defend any legal proceeding in respect of any depositary shares or preferred stock unless satisfactory indemnity is furnished. We and the depositary may rely on written advice of counsel or accountants, on information provided by holders of depositary receipts or other persons believed in good faith to be competent to give such information and on documents believed to be genuine and to have been signed or presented by the proper party or parties.

Resignation and Removal of Depositary

The depositary may resign at any time by delivering a notice to us of its election to do so. We may remove the depositary at any time. Any such resignation or removal will take effect upon the appointment of a successor depositary and its acceptance of such appointment. The successor depositary must be appointed within 60 days after delivery of the notice for resignation or removal. In addition, the successor depositary must be a bank or trust company having its principal office in the United States of America and having a combined capital and surplus of at least $150,000,000.

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DESCRIPTION OF COMMON STOCK

Common Stock

As of the date of this prospectus, we are authorized to issue up to 300,000,000 shares of common stock, $1.00 par value per share. As of September 30, 2017, 218,346,074 shares of common stock were outstanding.

Dividends

Holders of common stock are entitled to receive dividends, in cash, securities, or property, as may from time to time be declared by our board of directors, subject to the rights of the holders of the preferred stock.

Voting

Each holder of common stock is entitled to one vote per share on all matters requiring a vote of the stockholders.

Rights Upon Liquidation

In the event of our voluntary or involuntary liquidation, dissolution, or winding up, the holders of common stock will be entitled to share equally in our assets available for distribution after payment in full of all debts and after the holders of preferred stock have received their liquidation preferences in full.

Statutory Provisions

Section 203 of the Delaware General Corporation Law (“DGCL”) prohibits a defined set of transactions between a Delaware corporation, such as us, and an interested stockholder. An interested stockholder is generally defined as a person who, together with any affiliates or associates of such person, beneficially owns, directly or indirectly, 15% or more of the outstanding voting shares of a Delaware corporation. This provision may prohibit business combinations between an interested stockholder and a corporation for a period of three years after the date the interested stockholder becomes an interested stockholder. The term business combination is broadly defined to include mergers, consolidations, sales or other dispositions of assets having a total value in excess of 10% of the consolidated assets of the corporation, and some other transactions that would increase the interested stockholder’s proportionate share ownership in the corporation.

This prohibition is effective unless:

In general, the prohibitions do not apply to business combinations with persons who were stockholders before we became subject to Section 203.

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Certificate of Incorporation andBy-Law Provisions

Vacancies, and newly-created directorships resulting from any increase in the size of our board, may be filled by a majority vote of all remaining directors, even if the directors then on the board do not constitute a quorum or only one director is left in office.

These provisions, together with the provisions of Section 203 of the DGCL (as discussed above), could have the effect of delaying, deferring or preventing a change in control or the removal of existing management, of deterring potential acquirers from making an offer to our stockholders and of limiting any opportunity to realize premiums over prevailing market prices for our common stock in connection therewith. This could be the case notwithstanding that a majority of our stockholders might benefit from such a change in control or offer.

In addition, ourBy-laws contain a forum selection provision for the adjudication of certain disputes. Unless we consent in writing to the selection of an alternative forum, the sole and exclusive forum for (a) any derivative action or proceeding brought on our behalf; (b) any action asserting a claim of breach of a fiduciary duty owed by any of our directors, officers or other employees to us or our stockholders; (c) any action asserting a claim arising pursuant to any provision of the DGCL; or (d) any action asserting a claim governed by the internal affairs doctrine will be the Court of Chancery of the State of Delaware, or, if the Court of Chancery of the State of Delaware does not have jurisdiction, the Superior Court of the State of Delaware, or, if the Superior Court of the State of Delaware does not have jurisdiction, the United States District Court for the District of Delaware. Any person or entity purchasing or otherwise acquiring any interest in shares of our capital stock will be deemed to have notice of and consented to the forum selection provision of ourBy-laws.

Miscellaneous

Shares of common stock are not redeemable and have no subscription, conversion or preemptive rights.

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DESCRIPTION OF WARRANTS

Warrants

We may issue warrants for the purchase of debt securities, preferred stock or common stock. Warrants may be issued independently or together with our debt securities, preferred stock or common stock and may be attached to or separate from any offered securities. Each series of warrants will be issued under a separate warrant agreement to be entered into between us and a bank or trust company, as warrant agent. The warrant agent will act solely as our agent in connection with the warrants and will not have any obligation or relationship of agency or trust for or with any holders or beneficial owners of warrants. A copy of the warrant agreement will be filed with the SEC in connection with the offering of warrants.

The prospectus supplement relating to a particular issue of warrants will describe the terms of those warrants, including the following:

After warrants expire they will become void. The prospectus supplement may provide for the adjustment of the exercise price of the warrants.

Warrants may be exercised at the appropriate office of the warrant agent or any other office indicated in an accompanying prospectus supplement. Before the exercise of warrants, holders will not have any of the rights of holders of the securities purchasable upon exercise and will not be entitled to payments made to holders of those securities.

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PLAN OF DISTRIBUTION

We may sell the securities in one or more of four ways from time to time:

We may solicit offers to purchase securities directly or by the means of designated agents from time to time. Any such agent, who may be deemed to be an underwriter as that term is defined in the Securities Act involved in the offer or sale of the securities in respect of which this prospectus is delivered will be named, and any commissions payable by us to such agent will be set forth, in the prospectus supplement. Unless otherwise indicated in the prospectus supplement, any such agent will be acting on a best efforts basis for the period of its appointment. Agents may be customers of, engage in transactions with, or perform services for, us in the ordinary course of business.

We will identify the specific plan of distribution, including any underwriters, dealers, agents or direct purchasers and their compensation in a prospectus supplement.

LEGAL MATTERS

The legality of the securities in respect of which this prospectus is being delivered will be passed on for us by Skadden, Arps, Slate, Meagher & Flom LLP, New York, New York. The validity of any securities offered in the prospectus supplement relating to such securities will be passed upon for any underwriters or agents by counsel to be named in the prospectus supplement relating to such securities.

EXPERTS

The Company’s consolidated financial statements and schedule as of 30 September 2017 and 2016, and for each of the years in the three-year period ended 30 September 2017, and management’s assessment of the effectiveness of internal control over financial reporting as of 30 September 2017 have been incorporated by reference herein in reliance of the report of KPMG LLP, independent registered public accounting firm, incorporated by reference herein, and upon the authority of said firm as experts in accounting and auditing.

22

€1,000,000,000

Air Products and Chemicals, Inc.

€500,000,000 0.500% Notes due 2028

€500,000,000 0.800% Notes due 2032

PROSPECTUS SUPPLEMENT

Joint Book-Running Managers

BNP PARIBAS

BofA Securities

Citigroup

Deutsche Bank

April 28, 2020