有色金属板块震荡走强，江西铜业冲击涨停

Group 1 - The non-ferrous metal sector experienced a strong rebound on December 31, with Jiangxi Copper hitting the daily limit up [1] - Zijin Mining rose over 5%, indicating positive market sentiment towards the company [1] - Other companies such as Yunnan Copper, Hunan Silver, and Silver Holdings also saw gains, reflecting a broader trend in the sector [1]