云铝股份：聘任马颜为公司财务总监

Group 1 - The core point of the article is the announcement by Yun Aluminum Co., Ltd. regarding the resignation of its Chief Financial Officer and the appointment of a new CFO [1] - Zheng Lihai has resigned from his position as CFO and Secretary of the Board due to job changes, and will no longer hold any position in the company [1] - Ma Yan has been appointed as the new CFO following the approval of the board [1] Group 2 - For the first half of 2025, Yun Aluminum's revenue composition is as follows: 58.12% from non-ferrous metal smelting, 40.67% from non-ferrous metal rolling processing, and 1.21% from other industries [1] - As of the report date, Yun Aluminum's market capitalization is 80.5 billion yuan [1]