Skeena Resources Limited (SKE) 6-KNotice of Annual General Meeting of Shareholders

Security Class Holder Account Number Voting Instruction Form ("VIF") - Annual General Meeting to be held on June 17, 2024 NON-REGISTERED (BENEFICIAL) SECURITYHOLDERS 1. We are sending to you the enclosed proxy-related materials that relate to a meeting of the holders of the series or class of securities that are held on your behalf by the intermediary identified above. Unless you attend the meeting and vote in person, your securities can be voted only by management, as proxy holder of the registered holder, in accordance with your instructions. 2. We are prohibited from voting these securities on any of the matters to be acted upon at the meeting without your specific voting instructions. In order for these securities to be voted at the meeting, it will be necessary for us to have your specific voting instructions. Please complete and return the information requested in this VIF to provide your voting instructions to us promptly. 3. If you want to attend the meeting and vote in person, please write your name in the place provided for that purpose in this form. You can also write the name of someone else whom you wish to attend the meeting and vote on your behalf. Unless prohibited by law, the person whose name is written in the space provided will have full authority to present matters to the meeting and vote on all matters that are presented at the meeting, even if those matters are not set out in this form or the information circular. Consult a legal advisor if you wish to modify the authority of that person in any way. If you require help, please contact the Registered Representative who services your account. 4. This VIF should be signed by you in the exact manner as your name appears on the VIF. If these voting instructions are given on behalf of a body corporate set out the full legal name of the body corporate, the name and position of the person giving voting instructions on behalf of the body corporate and the address for service of the body corporate. 5. If a date is not inserted in the space provided on the reverse of this VIF, it will be deemed to bear the date on which it was mailed by management to you. 6. When properly signed and delivered, securities represented by this VIF will be voted as directed by you, however, if such a direction is not made in respect of any matter, and the VIF appoints the Management Nominees, the VIF will direct the voting of the securities to be made as recommended in the documentation provided by Management for the meeting. 7. Unless prohibited by law, this VIF confers discretionary authority on the appointee to vote as the appointee sees fit in respect of amendments or variations to matters identified in the notice of meeting or other matters as may properly come before the meeting or any adjournment thereof. 8. By providing voting instructions as requested, you are acknowledging that you are the beneficial owner of, and are entitled to instruct us with respect to the voting of, these securities. 9. If you have any questions regarding the enclosed documents, please contact the Registered Representative who services your account. 10. This VIF should be read in conjunction with the information circular and other proxy materials provided by Management. VIFs submitted must be received by 10:00 am, Pacific Time, on June 13, 2024. VOTE USING THE TELEPHONE OR INTERNET 24 HOURS A DAY 7 DAYS A WEEK! To Vote Using the Telephone • Call the number listed BELOW from a touch tone telephone. 1-866-734-VOTE (8683) Toll Free To Vote Using the Internet • Go to the following web site: www.investorvote.com • Smartphone? Scan the QR code to vote now. If you vote by telephone or the Internet, DO NOT mail back this VIF. Voting by mail may be the only method for securities held in the name of a corporation or securities being voted on behalf of another individual. Voting by mail or by Internet are the only methods by which a holder may choose an appointee other than the Management appointees named on the reverse of this VIF. Instead of mailing this VIF, you may choose one of the two voting methods outlined above to vote this VIF. To vote by telephone or the Internet, you will need to provide your CONTROL NUMBER listed below. CONTROL NUMBER ------- Fold ------- Fold

------- Fold ------- Fold Appointee(s) I/We being holder(s) of securities of Skeena Resources Limited (the “Corporation”) hereby appoint: Randy Reichert, or failing this person, Andrew MacRitchie, or failing this person, Craig Parry (the "Management Nominees") OR If you wish to attend in person or appoint someone else to attend on your behalf, print your name or the name of your appointee in this space (see Note #3 on reverse). as my/our appointee to attend, act and to vote in accordance with the following direction (or if no directions have been given, as the appointee sees fit) and on all other matters that may properly come before the Annual General Meeting of shareholders of the Corporation to be held at Suite 2600 – 1133 Melville Street, Vancouver, BC on June 17, 2024 at 10:00 am (Pacific Time), and at any adjournment or postponement thereof. VOTING RECOMMENDATIONS ARE INDICATED BY HIGHLIGHTED TEXT OVER THE BOXES. 1. Number of Directors To set the number of Directors at six (6). For Against 2. Election of Directors 01. Walter Coles, Jr. For Withhold 02. Randy Reichert For Withhold 03. Craig Parry For Withhold 04. Sukhjit (Suki) Gill 05. Greg Beard 06. Nathalie Sajous 3. Appointment of Auditors Appointment of KPMG LLP, Chartered Professional Accountants as Auditors of the Corporation for the ensuing year and authorizing the Directors to fix their remuneration. For Withhold Authorized Signature(s) – This section must be completed for your instructions to be executed. I/We authorize you to act in accordance with my/our instructions set out above. I/We hereby revoke any VIF previously given with respect to the Meeting. If no voting instructions are indicated above, and the VIF appoints the Management Nominees, this VIF will be voted as recommended by Management. Signature(s) Date S K E Q 3 6 4 8 3 3 A R 0

Security Class Holder Account Number Voting Instruction Form ("VIF") - Annual General Meeting to be held on June 17, 2024 This VIF is solicited by and on behalf of Management. Notes 1. Every holder has the right to appoint some other person or company of their choice, who need not be a holder, to attend and act on their behalf at the meeting or any adjournment or postponement thereof. If you wish to appoint a person or company other than the Management Nominees whose names are printed herein, please insert the name of your chosen proxyholder in the space provided (see reverse). 2. If the securities are registered in the name of more than one owner (for example, joint ownership, trustees, executors, etc.), then all those registered should sign this VIF. If you are voting on behalf of a corporation or another individual you may be required to provide documentation evidencing your power to sign this VIF with signing capacity stated. 3. This VIF should be signed in the exact manner as the name(s) appear(s) on the VIF. 4. If a date is not inserted in the space provided on the reverse of this VIF, it will be deemed to bear the date on which it was mailed to the holder by Management. 5. The securities represented by this VIF will be voted as directed by the holder, however, if such a direction is not made in respect of any matter, and the VIF appoints the Management Nominees listed on the reverse, this VIF will be voted as recommended by Management. 6. The securities represented by this VIF will be voted in favour, or withheld from voting, or voted against each of the matters described herein, as applicable, in accordance with the instructions of the holder, on any ballot that may be called for. If you have specified a choice with respect to any matter to be acted on, the securities will be voted accordingly. 7. This VIF confers discretionary authority in respect of amendments or variations to matters identified in the Notice of Meeting and Management Information Circular or other matters that may properly come before the meeting or any adjournment or postponement thereof, unless prohibited by law. 8. This VIF should be read in conjunction with the accompanying documentation provided by Management. VIFs submitted must be received by 10:00 am, Pacific Time, on June 13, 2024. VOTE USING THE TELEPHONE OR INTERNET 24 HOURS A DAY 7 DAYS A WEEK! To Vote Using the Telephone • Call the number listed BELOW from a touch tone telephone. 1-866-732-VOTE (8683) Toll Free To Vote Using the Internet • Go to the following web site: www.investorvote.com • Smartphone? Scan the QR code to vote now. If you vote by telephone or the Internet, DO NOT mail back this VIF. Voting by mail may be the only method for securities held in the name of a corporation or securities being voted on behalf of another individual. Voting by mail or by Internet are the only methods by which a holder may appoint a person as proxyholder other than the Management Nominees named on the reverse of this VIF. Instead of mailing this VIF, you may choose one of the two voting methods outlined above to vote this VIF. To vote by telephone or the Internet, you will need to provide your CONTROL NUMBER listed below. CONTROL NUMBER ------- Fold ------- Fold

------- Fold ------- Fold Appointment of Proxyholder I/We being holder(s) of securities of Skeena Resources Limited (the “Corporation”) hereby appoint: Randy Reichert, or failing this person, Andrew MacRitchie, or failing this person, Craig Parry (the "Management Nominees") OR Print the name of the person you are appointing if this person is someone other than the Management Nominees listed herein. as my/our proxyholder with full power of substitution and to attend, act and to vote for and on behalf of the holder in accordance with the following direction (or if no directions have been given, as the proxyholder sees fit) and on all other matters that may properly come before the Annual General Meeting of shareholders of the Corporation to be held at Suite 2600 – 1133 Melville Street, Vancouver, BC on June 17, 2024 at 10:00 am (Pacific Time), and at any adjournment or postponement thereof. VOTING RECOMMENDATIONS ARE INDICATED BY HIGHLIGHTED TEXT OVER THE BOXES. 1. Number of Directors To set the number of Directors at six (6). For Against 2. Election of Directors 01. Walter Coles, Jr. For Withhold 02. Randy Reichert For Withhold 03. Craig Parry For Withhold 04. Sukhjit (Suki) Gill 05. Greg Beard 06. Nathalie Sajous 3. Appointment of Auditors Appointment of KPMG LLP, Chartered Professional Accountants as Auditors of the Corporation for the ensuing year and authorizing the Directors to fix their remuneration. For Withhold Signature of Proxyholder I/We authorize you to act in accordance with my/our instructions set out above. I/We hereby revoke any VIF previously given with respect to the Meeting. If no voting instructions are indicated above, and the VIF appoints the Management Nominees, this VIF will be voted as recommended by Management. Signature(s) Date S K E Q 3 6 4 8 3 5 A R 0