Non-gold and silver commemorative coins can be brought back to China. According to the query of China Entry-Exit Customs Network, ordinary commemorative coins are generally made of ordinary metal materials such as brass alloy, which have the same function as the RMB currently in circulation and are circulated at the same value as the RMB with the same denomination. When carrying ordinary commemorative coins into and out of the country, it is necessary to pay attention to the fact that the total face value does not exceed 20 thousand yuan before going through customs clearance procedures. Precious metal commemorative coins are generally made of precious metals such as gold, silver and platinum, and their denomination is only a currency symbol, which is not included in the cash circulation in the market. It does not participate in currency circulation, but it is compensated by national laws. The tax rate of gold and silver jewelry and its products is 10%. Commemorative coins are legal tender issued by a country to commemorate major international or domestic political, historical and cultural events, outstanding figures, places of interest, rare animals and plants, sports events and so on. They include ordinary commemorative coins and precious metal commemorative coins.