The Caisse de dépôt et placement du Québec is increasing its investment in Atlantic Power Corporation to 18.8% from 14.2%.

It purchased 4,075,000 income participating securities of the company by private placement for an aggregate subscription price of $40,750,000.

The transaction was made for investment purposes and the Caisse could increase or decrease its stake depending on market conditions or any other relevant factor.

Atlantic Power owns interests in and manages a diversified portfolio of independent, non-utility power generation projects situated primarily in major U.S. markets.

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