Sichuan Yijing Purification Equipment Technology Group Co., Ltd. ("Yijing Purification") is located in Mianzhu, Deyang, Sichuan, with its registered address at No. 8 Kangning Road, Jiannan Sub-district, Mianzhu. With registered capital of RMB 58 million, the company is a technology enterprise integrating R&D, manufacturing, sales and cleanroom engineering services for purification panels, cleanroom doors and windows, air purification equipment and accessories. The "Yijing Purification" brand dates back to 2009, with more than ten years of experience in the industry.
The company operates production bases at No. 8 Kangning Road in the Mianzhu High-tech Zone Famous Wine and Food Industrial Park, No. 289 Longtan East Road in the Pengzhou Industrial Development Zone, and No. 33 Haowang Road in Wenjiang District, Chengdu. Three main product lines cover purification panels, cleanroom doors and windows, and purification equipment, producing cleanroom colour-steel panels, hollow panels, polyurethane (PU-edged rock wool) composite panels, cleanroom doors, air showers, supply air outlets and HEPA filters for cleanroom construction in pharmaceutical, food, electronics, medical and new-energy industries.
The product range covers twelve major categories: colour-steel panels (machine-made and hand-made), cleanroom doors, hollow panels, polyurethane foam panels, PU-edged rock wool exterior wall panels, pass boxes, air showers, supply air outlets, control dampers, filter units and aluminium profiles and fittings. Based on cleanliness class (Class 100 to Class 100,000) and site conditions, the company provides integrated solutions covering panel selection, joint detailing, door and window matching, and equipment integration.
In technology and quality, the brand entity was recognised as a National High-tech Enterprise in 2021 (Certificate No. GR2021510016902) and holds 20 patents, 9 qualification certificates and 28 administrative licences. It has been awarded titles including "Top Ten Brands in China's Purification Equipment Industry", "China Green Energy-Saving and Environmentally Friendly Product", "Green Environmental Protection Promotion Product", "Quality Inspection - National Standard Qualified Product" and "China Green Environmental Protection Product". The company is advancing its project for the manufacture of intelligent nano purification high-tech materials, which will add annual capacity of 100,000 m² of PU-edged rock wool composite panels and 100,000 m² of polyurethane foam panels.
The company serves purification engineering companies and equipment distributors across China and exports to Laos, Vietnam, Cambodia, Nigeria and other countries in Asia and Africa. In 2026 it won the contract for cleanroom panels, cleanroom doors and windows, HEPA supply outlets and air showers for the Dongchi New Energy project at the Yibin Shoucheng Industrial Group Xuzhou Energy Storage Industrial Park, establishing a reference case in new-energy cleanroom construction.
Guided by the principle of "serving the purification industry with quality products" and the tenet of "people first, honesty and trustworthiness", the company follows customer demand and looks forward to long-term cooperation with partners in cleanroom technology.