Dongfeng West Road, Kunming City. According to Baidu Map query, Bank of China is one of China's large state-owned banks, headquartered in Beijing. The Yunnan Branch of the Audit Department of Bank of China is the branch office of the Audit Department of the Head Office in Yunnan Province. It is located on Dongfeng West Road, Kunming City. The bank provides various financial services, including personal banking, corporate banking, investment banking, etc. Bank of China has branches all over the world and is one of the most international and diversified banks in China.