1. The trading volume of gold futures was 311,144 lots, an increase of 9,908 lots from the previous trading day. The open interest was 450007 hands, a decrease of 3341 hands from the previous trading day.
2. The trading volume of silver futures was 84,191 lots, an increase of 20,821 lots from the previous trading day. The open interest was 133,718 hands, a decrease of 1,434 hands from the previous trading day.
3. The trading volume of copper futures was 107,803 lots, an increase of 21,873 lots from the previous trading day. The open interest was 223,193 lots, an increase of 3,001 lots from the previous trading day.