东和新材：关于变更会计师事务所项目签字注册会计师的公告

Group 1 - The company Donghe New Materials announced a change in its auditing firm for the 2025 annual audit, with the original auditor Zhou Hongbo being replaced by Sha Zhengyu due to work arrangement adjustments [2] - The new project partner for the 2025 annual audit is Yan Changman, with Sha Zhengyu and Liu Yan serving as signing auditors, and Lang Haihong as the quality control reviewer [2]