有色金属板块震荡反弹，南矿集团等多股涨停

Group 1 - The non-ferrous metal sector experienced a rebound on January 28, with several companies reaching their daily limit up, indicating strong market performance [1] - Notable companies that saw significant gains include Nanmin Group, Xiaocheng Technology, Hunan Gold, Sichuan Gold, and others, reflecting a broad-based rally in the sector [1] - Additional companies such as Copper Crown Mining, Naipu Mining Machinery, and Dongfang Tantalum also showed upward movement, suggesting positive sentiment across the industry [1]