国际铜夜盘收涨0.38%，沪锌收跌0.70%

Group 1 - International copper futures rose by 0.38% in the night session, while Shanghai copper increased by 0.33% [1] - Shanghai aluminum decreased by 0.29%, and Shanghai zinc fell by 0.70% [1] - Shanghai lead dropped by 0.09%, and Shanghai nickel saw a slight decline of 0.02% [1] Group 2 - Shanghai tin experienced a significant increase of 1.12% [1] - Alumina futures fell by 0.10%, and aluminum alloy decreased by 0.20% [1] - Stainless steel futures rose by 0.27% [1]