Hydro-QuébecIssue of Debentures 5.00% Due February 15, 2050 on the Canadian Market

Hydro-Québec announces that it has negotiated on the Canadian domestic market the issue of CA$500,000,000 of debentures, Series JN, maturing on February 15, 2050.

The debentures, with a coupon of 5.00%, payable semi-annually, will be offered on the market at a price of 130.962 plus interest deemed to have accrued from August 15, 2012. The yield is 3.504%.

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

This is the eleventh additional tranche of Debentures, Series JN, issued initially on January 15, 2009 and the total aggregate principal amount of debentures outstanding under this series now amounts to CA$6,000,000,000.