Panda coins issued by China Post Bank are made of different materials according to their denominations and specifications. 30g round gold commemorative coins are ordinary coins, containing 30g pure gold, with a diameter of 32mm and a denomination of 500 yuan, with a purity of 99.9% and a maximum circulation of 1 000,000 pieces.
15g round gold commemorative coins are common coins, containing 15g pure gold, with a diameter of 27mm and a denomination of 200 yuan, with a purity of 99.9% and a maximum circulation of 250,000 pieces.