| Optional Redemption: | | The 2023 Notes will be redeemable, in whole or in part, at the option of the Company at any time and from time to time at a redemption price equal to the greater of (i) 100% of the principal amount of the 2023 Notes to be redeemed and (ii) the sum of the present values of the remaining scheduled payments of principal and interest on the 2023 Notes to be redeemed (not including any portion of any payments of interest accrued to the redemption date), discounted to the redemption date on a semi-annual basis (assuming a360-day year consisting of twelve30-day months) at the adjusted treasury rate plus 30 basis points, plus accrued and unpaid interest on the principal amount being redeemed, if any, to the redemption date, as more fully described in the Company’s preliminary U.S. and Canadian prospectus supplements, dated May 11, 2020 (the “Preliminary Prospectus Supplements”). At any time prior to February 13, 2030 (which is the date that is three months prior to the maturity of the 2030 Notes, the “2030 Par Call Date”), the 2030 Notes will be redeemable, in whole or in part, at the option of the Company at any time and from time to time at a redemption price equal to the greater of (i) 100% of the principal amount of the 2030 Notes to be redeemed and (ii) the sum of the present values of the remaining scheduled payments of principal and interest on the 2030 Notes that would be due if such 2030 Notes matured on the 2030 Par Call Date but for such redemption (not including any portion of any payments of interest accrued to the redemption date), discounted to the redemption date on a semi-annual basis (assuming a360-day year consisting of twelve30-day months) at the adjusted treasury rate plus 35 basis points, plus accrued and unpaid interest on the principal amount being redeemed, if any, to the redemption date, as more fully described in the Preliminary Prospectus Supplements. At any time on or after the 2030 Par Call Date, the Company may redeem the 2030 Notes, in whole or in part, at the option of the Company at a redemption price equal to 100% of the principal amount of the 2030 Notes to be redeemed plus accrued and unpaid interest on the principal amount being redeemed, if any, to the redemption date, as more fully described in the Preliminary Prospectus Supplements. At any time prior to November 13, 2049 (which is the date that is six months prior to the maturity of the 2050 Notes, the “2050 Par Call Date”), the 2050 Notes will be redeemable, in whole or in part, at the option of the Company at any time and from time to time at a redemption price equal to the greater of (i) 100% of the principal amount of the 2050 Notes to be redeemed and (ii) the |
