黔源电力：华电产融累计增持公司股份约612万股，增持计划实施完成

Group 1 - The core point of the article is that Qianyuan Power has completed its share buyback plan, with Huadian Chanyong increasing its stake in the company by approximately 6.12 million shares, representing 1.43% of the total share capital [1] Group 2 - The share buyback plan was executed through centralized bidding on the Shenzhen Stock Exchange and was completed by the deadline of October 15, 2025 [1]