1. The trading volume of gold futures was 238,395 lots, a decrease of 30,416 lots from the previous trading day. The open interest was 484,712 hands, a decrease of 1,240 hands from the previous trading day.
2. The trading volume of silver futures was 37,436 lots, a decrease of 3,218 lots from the previous trading day. The open interest was 120,451 hands, a decrease of 1,198 hands from the previous trading day.
3. The trading volume of copper futures was 82,556 lots, an increase of 21,799 lots from the previous trading day. The open interest was 197,729 hands, an increase of 2,583 hands from the previous trading day.