通源石油：关于变更持续督导保荐代表人的公告

Group 1 - The core point of the article is that Tongyuan Petroleum announced a change in its continuous supervision sponsor representative, with Hu Yulin leaving due to work changes and Gao Jianfeng taking over the role [2] - Gao Jianfeng will work alongside Xu Guang to oversee the follow-up of the simplified capital increase that occurred in 2022 until the completion of the 2025 annual report disclosure [2] - This change in personnel is part of the company's ongoing compliance and governance efforts [2]