A股早评：三大指数集体低开，煤炭、光刻胶概念股活跃，国风新材、普利特涨停，稀土永磁、有色金属板块调整

Group 1 - The A-share market opened lower, with the Shanghai Composite Index down 0.2% at 4077.72 points, the Shenzhen Component down 0.42%, and the ChiNext Index down 0.63% [1] - Coal mining capacity expectations are tightening, leading to a significant increase in coking coal futures, which rose over 8%, driving up coal stocks [1] - The photolithography concept stocks opened high, with Guofeng New Materials and Prit (002324) hitting the daily limit [1] Group 2 - The rare earth permanent magnet and non-ferrous metal sectors experienced adjustments [1]