港股有色金属概念普跌，赣锋锂业跌近6%

Group 1 - The core viewpoint of the article highlights a significant decline in the Hong Kong stock market for the non-ferrous metals sector, with major companies experiencing notable drops in their stock prices [1] Group 2 - Ganfeng Lithium saw a nearly 6% decrease in its stock price [1] - Jiangxi Copper Co. experienced a decline of over 4% [1] - Zijin Mining and Luoyang Molybdenum both fell by more than 2% [1]