通光线缆：重大合同预中标提示性公告

Core Points - Tongguang Cable announced that its wholly-owned subsidiaries participated in the National Grid Corporation's procurement for transmission and transformation projects [2] - The procurement is part of the 65th batch for 2025, specifically for the fifth round of bidding for line installation materials [2] - The National Grid Corporation published the list of candidates for the bidding on its e-commerce platform on November 3, 2025 [2]