Buying foreign currency requires you to open this business. If you have already started this business, you can use mobile banking or go directly to the bank counter to buy it. Ask the staff to exchange rubles, and then they can exchange them with their help. These banks include China Bank, Agricultural Bank, China Industrial and Commercial Bank and China Construction Bank.

China Construction Bank, formerly known as People's Construction Bank of China, was established in June 1954+ 10/(later renamed as China Construction Bank on March 26th, 1 996). The head office is located at No.25, Financial Street, Beijing. It is a large state-owned bank managed by the central government and a national deputy ministerial unit. The main business areas of China Construction Bank include corporate banking, personal banking and treasury business, with branches and subsidiaries in 29 countries and regions, and subsidiaries in many industries such as funds, leasing, trust, life insurance, property insurance, investment banking, futures and pension.