Yixing Haiyuan Environmental Protection Equipment Co., Ltd. (hereinafter referred to as: Group Company) was established in 1988. It is a large domestic environmental protection enterprise, integrating design research, development production, installation and commissioning, specializing in the production of filters, water purifiers, sewage treatment equipment. After nearly two decades of rapid development, filters, water purifiers, and sewage treatment equipment have become quite famous both domestically and internationally. It has five subsidiary companies under its umbrella: one environmental protection equipment factory, one fiberglass factory, one packing factory, one mechanical precision processing factory, and one professional operation management department for sewage treatment equipment. The company is a limited liability company with an area of 33,000 square meters, and the building area of the production workshop is 12,000 square meters. The building area for scientific research, design, office, business activities, and living quarters is 6,800 square meters. The group employs more than 500 people, among whom scientific and technical personnel and skilled workers account for 80% of the employees. All have undergone systematic professional training, including several senior experts from home and abroad who are involved in scientific and technological research and development within the company. The main operations include environmental pollution prevention and control equipment, softened water and desalinated water equipment, fiberglass product manufacturing, water treatment packing and aeration equipment manufacturing; various types of scientific and technological product research, development, and design; technical consulting services; domestic trade and import and export business.