First of all, not all Asian gold is 99% pure. Yayi Gold is a famous gold brand in Shanghai, which has a history of many years. The gold jewelry he sells is 990 gold and 999 gold. In order to improve the hardness, some gold ornaments will be made into pure gold 990 with 99% gold content. But a large part of gold jewelry is 999 gold. Its gold content reaches 99.9% and its purity is very good.