The Chinese Gold Pandas, which have been produced by the People's Republic of China since 1982, are made of .999 high-quality Gold. To raised cater to the global industry, the Chinese government started out minting these coins in metric dimensions in 2016. This transformation resulted in the subsequent dimensions conversions: https://counterfeit-bank-notes-fo93959.blogminds.com/austrian-gold-philharmonic-coin-1-oz-an-overview-24551977