汉桑科技：关于变更投资者热线电话、传真的公告

Group 1 - The core announcement is that Hansang Technology will implement a new investor hotline and fax number starting from August 25, 2025, to enhance investor service quality and optimize communication channels [2] - The new investor hotline number will be 025-66612118, and the fax number will remain the same [2]