Core Viewpoint - The collaboration between Beixin Waterproof, Keshun Co., and Kairun Co. has ended in bankruptcy, with significant changes in shareholding and capital structure of Beixin New Materials (Jinzhou) Co., Ltd. [1][6] Group 1: Company Changes - Beixin Waterproof's shareholding increased to 90% after Keshun and Kairun exited the shareholder list [1] - The legal representative changed from "Ding Shanghua" to "Bai Hongcheng," and the registered capital decreased from 300 million yuan to 90 million yuan [1][6] Group 2: Joint Venture Background - In July 2021, Beixin Waterproof, Keshun Co., and Kairun Co. signed an agreement to establish a joint venture with a total investment of 50 million yuan [3][9] - The joint venture aimed to unify procurement of common raw materials and equipment to enhance competitiveness in the waterproof materials market [4][10] Group 3: Financial Performance - Keshun Co. reported a revenue of 6.829 billion yuan in 2024, while Kairun Co. reported 2.38 billion yuan, and Beixin Waterproof reported 4.631 billion yuan [4][9] Group 4: Future Projects - A new project for producing 28,000 tons of polyester spunbond substrate is underway, expected to become the largest production base in Northeast China and Inner Mongolia [6][12] - This project aims to enhance product quality and competitiveness in the waterproof materials sector [12]