Bank of China Hong Kong, or BOCHK, is a subsidiary of Bank of China. It is the second-largest bank in Hong Kong in terms of loan and deposit market shares. Although BOCHK is legally separate from Bank of China, it maintains close relationships with it in management, administration, and business relations. The two companies also cooperate in several areas, including the reselling of Bank of China's insurance and securities services. Bank of China holds a 66% stake in BOCHK.