雅化集团：聘任黄国城为公司证券事务代表

Group 1 - Yahua Group announced a change in its securities representative, with Zhang Longyan no longer holding the position and Huang Guocheng appointed as the new representative [2] - For the fiscal year 2024, Yahua Group's revenue composition is as follows: lithium industry accounts for 53.35%, civil explosives production for 42.29%, and transportation enterprises for 4.37% [2]