惠同新材：关于变更签字注册会计师的公告

Group 1 - The core point of the article is that Huitong New Materials announced a change in its signing auditor for the 2025 annual report due to internal adjustments at Tianzhi International [2] - Liu Yunfei Yang will no longer serve as the signing auditor, and Bin Yan has been appointed to take over this role [2] - The company aims to ensure the completion of the relevant audit work with the new signing auditor [2]