The registered address of Suzhou Runjier Environmental Protection New Materials Co., Ltd. is located on the 5th floor of Room 2, No. 108 Fengxia Road, Lujia Town, Kunshan City. The registration authority is Kunshan Administrative Approval Bureau, and the legal representative is Yu Jian. The business scope includes the sales of environmental protection materials, chemical raw materials (excluding hazardous chemicals), fire-fighting equipment, building materials, hardware and electrical equipment, decorative materials, electronic components, office supplies, labor protection supplies, printing equipment, packaging materials, adhesives and adhesives, plastic products, lubricants, automation equipment and accessories, and nanomaterials; Sales and on-site installation and maintenance services for environmental protection equipment, mechanical equipment, testing equipment (excluding medical devices), and communication equipment (excluding satellite broadcasting and television ground receiving facilities); Technical services, technology transfer, and technology consulting in the field of environmental protection; Cleaning services; Import and export business of goods and technology. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments)