丹化科技：A股简称变更为“金煤科技”

Group 1 - The company has changed its full name from "DanHua Chemical Technology Co., Ltd." to "Inner Mongolia Jinmei Chemical Technology Co., Ltd." [1] - The A and B share abbreviations listed on the Shanghai Stock Exchange have been changed from "DanHua Technology" and "DanKe B Share" to "Jinmei Technology" and "Jinmei B Share" respectively [1] - The securities codes remain unchanged, with A share code still being "600844" and B share code still being "900921" [1] Group 2 - The abbreviation change is set to take effect on August 7, 2025 [1]