The registered address of Golden Umbrella Waterproof Materials Co., Ltd. is located in Industrial Park, Taitou Town, Shouguang City, Weifang City, Shandong Province (formerly Zhaobu Village). The registration authority is Shouguang Market Supervision and Administration Bureau, and the legal representative is Li Huajun. The business scope includes research and development, production, and sales of waterproof building materials, waterproof coatings (excluding hazardous chemicals and precursor chemicals), recycled rubber, non-woven fabrics, thermal insulation and sound insulation materials (excluding fireproof sealing materials), plastic films (excluding polyvinyl chloride (PVC) food preservation packaging films), plastic boards and pipes (excluding nitrocellulose plastics), plastic profiles, and plastic woven products; Sales: chemical products (excluding hazardous chemicals and precursor chemicals), rubber products; Contracting: Building waterproofing engineering, anti-corrosion and insulation engineering; Construction labor subcontracting; Engage in import and export business of goods and technology within the scope permitted by the state. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments)