丹化科技：证券简称变更为金煤科技

Group 1 - The company Danhua Technology (stock code 600844) will change its A-share stock name from "Danhua Technology" to "Jinmei Technology" starting from August 7, 2025 [1] - The B-share stock name will change from "Dan Ke B Share (900921)" to "Jinmei B Share" while the stock codes for both A and B shares will remain unchanged [1]