宝钢包装：公司董事长曹清退休离任

Group 1 - The core point of the article is the announcement of the resignation of Mr. Cao Qing, the Chairman of the Board of Baosteel Packaging, due to reaching the legal retirement age, effective immediately upon submission of his resignation report to the board [1] - Baosteel Packaging's revenue composition for the first half of 2025 indicates that two-piece cans account for 96.79% of total revenue, while the tinplate business contributes 3.21% [1] Group 2 - As of the report, Baosteel Packaging has a market capitalization of 6.7 billion yuan [2]