A股煤炭股集体回调，中煤能源跌超6%，江钨装备跌超5%

Group 1 - The coal stocks in the A-share market experienced a collective decline following a significant drop in oil prices, with notable declines in companies such as China Coal Energy, which fell over 6%, and Jiangxi Copper Equipment, which dropped over 5% [1] - Other companies also faced declines, including Shanxi Black Cat, Yanzhou Coal, and several others, all experiencing drops exceeding 4% [1] - The overall trend indicates a negative reaction in the coal sector despite previous gains, highlighting the volatility influenced by external factors like oil prices [1] Group 2 - Specific stock performance data shows that China Coal Energy (601898) decreased by 6.65%, with a market capitalization of 225.3 billion and a year-to-date increase of 16.99% [2] - Jiangxi Copper Equipment (600397) saw a decline of 5.62%, with a market cap of 19.1 billion and a year-to-date increase of 19.32% [2] - Other notable declines include Shanxi Coal (601015) down 4.14%, and Electric Power Investment Energy (002128) down 2.58%, indicating a broader trend of decreasing stock values in the coal sector [2]