China has numerous well-known banks that play important roles in both domestic and international financial markets.

Large banks in China, such as Bank of China and Industrial and Commercial Bank of China, play a crucial role in promoting domestic and international currency transactions by providing foreign exchange rate services. The foreign exchange rates of these banks include buying, selling, and middle rates, covering multiple currencies such as the US dollar, euro, and yen, which are crucial for personal and business transactions. Customers can obtain the latest exchange rates and conduct foreign exchange transactions through the bank's online services or counters.