The Caisse de dépôt et placement du Québec acquires units of MonoGen inc.

The Caisse de dépôt et placement du Québec (“Caisse“) announces that it has purchased, through a private placement, 4,000,000 units (“units”) (or 2.10% of the units outstanding) at a price of CA $1,00 per unit.

Each unit consists of one common shares of MonoGen (“common shares”) and one-half of one common share purchase warrant (each whole such purchase warrant, a “warrant”).

Each warrant shall be exercisable into one common share of MonoGen at a price of CA $1.40 per warrant, for a period of two years following the closing date of the private placement.

Through this transaction, the number of common shares of MonoGen held by Caisse will be 20,038,045 or, 10.52% of such shares outstanding at the closing of the private placement. In addition, if Caisse were to exercise its privilege with respect to each underlying warrant, its holding would represent a total of 22,038,045 common shares of MonoGen, or 11.45% of such shares outstanding, on a partially diluted basis.

This transaction was made for investment purposes and the Caisse could increase or decrease its investment in MonoGen, depending on market conditions or any other relevant factor.

The Caisse de dépôt et placement du Québec is a financial institution that manages funds primarily for public and private pension and insurance plans. As at December 31, 2007, it held $155.4 billion of net assets. One of the leading institutional fund managers in Canada, the Caisse invests in the main financial markets as well as in private equity and real estate. For more information: www.cdpq.com.