1. export trade: export trade is one of the main sources of foreign exchange income in China. China has a huge manufacturing and light industry sector, and exports a large number of goods and services overseas, including electronic products, textiles, machinery and chemical products. Enter the bank account in China and become a part of foreign exchange reserves.

2. Overseas investment: China enterprises make direct investments overseas, such as acquisitions, mergers and joint ventures, which bring in foreign exchange income. At the same time, China has also increased its foreign exchange reserves by purchasing overseas stocks, funds and financial assets.