Hydro-Québec – Issue of Debentures Due February 15, 2065 on the Canadian Market

Montreal– Hydro-Québec announces that it has today negotiated on the Canadian domestic market the issue of C$500,000,000 of Debentures, Series JU, maturing on February 15, 2065.

The Debentures, with a coupon of 4.00%, payable semi-annually, will be offered on the market at a price of 89.593 plus interest deemed to have accrued from February 15, 2026. The yield is 4.576%. The Debentures will be issued and delivered as of the closing date scheduled for June 4, 2026.

The lead manager for this issue is National Bank Financial Inc. with CIBC World Markets Inc. and Scotia Capital Inc. acting as co-lead managers, BMO Nesbitt Burns Inc., Casgrain & Company Limited, Desjardins Securities Inc., Laurentian Bank Securities Inc., RBC Dominion Securities Inc. and The Toronto-Dominion Bank acting as other managers.

This is the fifteenth additional tranche of Debentures, Series JU, issued initially on September 19, 2024 and the total aggregate principal amount of Debentures outstanding under this Series now amounts to C$8,000,000,000.