凯伦股份：公司（含子公司）对子公司实际发生的担保额为23.1亿元

Group 1 - The core revenue composition of Kairun Co., Ltd. for the year 2024 is as follows: sales of waterproof materials account for 77.42%, waterproof engineering construction accounts for 21.61%, and other income accounts for 0.97% [1] Group 2 - As of the announcement date, Kairun Co., Ltd. and its subsidiaries have a total guarantee amount of 2.31 billion yuan, which represents 130.02% of the company's most recent audited net assets [3] - All guarantees provided by the company and its subsidiaries are within the scope of consolidated financial statements, with no external guarantees, overdue guarantees, or guarantees involving litigation [3]