Ainsworth Lumber Co. Ltd. (Ainsworth) is a Canada-based manufacturer and supplier of oriented strand board (OSB) with a focus on value-added specialty products for markets in North America and Asia. Its manufacturing portfolio, with a production capacity of 2.5 billion square feet per year (3/8-inch basis), includes four wholly owned OSB manufacturing facilities located in Grande Prairie, Alberta; High Level, Alberta; 100 Mile House, British Columbia and, Barwick, Ontario. The Company�s products are used primarily for new home construction and its principal markets are the United States, Canada and Japan. The Company�s operations include an OSB plant at Grande Prairie and at High Level. In British Columbia, the Company�s operations include an OSB plant at 100 Mile House. In Ontario, the Company�s operations include an OSB plant at Barwick. On February 17, 2011, the Company completed the purchase of the remaining 50% of Footner Forest Products Inc.