There is a description of the last trading day in the standardized contract of each futures product. The last trading day of the gold contract of Shanghai Futures Exchange is 15 of the delivery month (postponed in case of legal holidays), but according to the risk control of the exchange, the position of the gold futures contract of natural person customers should be adjusted to 0 lots before the closing of the last trading day of the first month before the delivery month. After delivery, natural person customers are not allowed to open positions again. If you want to know more about the specific provisions of futures varieties, you can directly inquire on the website of the exchange. At present, there are four futures exchanges in China: Shanghai Stock Exchange, Zhengshang Exchange, Dashang Exchange and CICC.