Harry Winston Diamond Corporation is a specialist diamond company with assets in the mining and retail segments of the diamond industry. The Company supplies rough diamonds to the global market from production received from its 40% ownership interest in the Diavik Diamond Mine (the Diavik Mine) located at Lac de Gras in Canada’s Northwest Territories. It also owns 100% of Harry Winston Inc. (HWI), a fine jewelry and watch retailer. As of January 31, 2009, the Company’s significant asset was a 40% ownership interest in the Diavik group of mineral claims. The Diavik Joint Venture (the Joint Venture) is an unincorporated joint arrangement between Diavik Diamond Mines Inc. (DDMI-60%) and Harry Winston Diamond Limited Partnership (40%), where the Company owns an undivided 40% interest in the assets, liabilities and expenses. DDMI is the operator (the Operator) of the Diavik Diamond Mine.