PARIS -(Dow Jones)- French nuclear group Areva (AREVA.FR) said Monday it signed an agreement with its local partners to process all of the uranium from Canada's Cigar Lake mine in the McClean Lake mill. MAIN FACTS: - Areva's partners in the Cigar Lake project are Cameco Corp. (CCO.T), Idemitsu (5019.TO) and Tokyo Electric Power Co. (9501.TO). - Areva's partners for the McClean Lake are Denison Mines Corp. (DML.T) and OURD Canada Co. Ltd. -The Cigar Lake mine is the world's second largest high-grade uranium deposit --capable of producing more than 100kg of uranium per tone of ore. -Cigar Lake is operated by Cameco Corp., which owns 50.03% of the project, against 37.1% for Areva. - Areva plans to invest nearly EUR107 million to upgrade the McClean Lake mill and increase its capacity to more than 8,500 tones per year. - By Paris Bureau, Dow Jones Newswires; +331-4017-1740; noemie.bisserbe@dowjones.com