The Chinese Silver Panda is a series of silver bullion coins issued by the People's Republic of China. The design changes every year and comes in different sizes, from 0.5 troy oz to 1 kilogram. The purity of the coin is 99.90% silver and it has a weight of 31.105 gram. The program was started early in the 1980s but in different weight standard early on. There are several mints that produce these coins, including: Shenzhen, Shanghai and Shenyang. Sometimes the different mints can be distinguished from the size of the year on the obverse side of the coin.