The glass futures contract is valid for 6 months. Glass warehouse receipts registered before May 12 trading day (excluding that day) every year, 165438+ 10 month shall be cancelled before 15 trading day (including that day) of the current month. The above is about the validity of the glass futures warehouse receipt. At the same time, futures prices fluctuate greatly due to many uncertain factors affecting the market in the near future. I wish you a happy life. Thank you for your concern?