蓝盾光电：关于变更投资者热线电话、传真的公告

Group 1 - The company announced a change in its investor communication channels, effective from September 8, 2025 [1] - The new investor hotline number will be 0551-62161770, and the fax number will remain the same [1] - The previous contact numbers will no longer be used for investor communication [1]