Weihai CreditFan Ventilator located in City of Weihai China, was founded in 2001, Stock code 831689. By December 2021, the company’s top strategic investors include CNNC, CGNPC, CRRC, Hongta Venture Capital, etc. The company has listed on Beijing Stock Exchange in 21st March 2022. CreditFan covers an area of nearly 60,000 square meters with a building area of 44,000 square meters and more than 400 employees. It is a provincial high-tech enterprise, with provincial technology center, academician workstation, provincial postdoctoral innovation practice base, provincial high-tech ship ventilation and cooling equipment energy saving and noise reduction technology innovation center and other research and development platforms, and has been awarded the honorary titles of the first batch of specialized new "little giant" enterprises of the Ministry of Industry and Information Technology, national green supply chain management enterprise, Shandong manufacturing single champion enterprise, Shandong gazelle enterprise, Shandong provincial green factory, Shandong high-end equipment manufacturing industry leader. The company’s business scopes contain ventilators, dust collectors, cooling units, and other ventilation and air treatment system equipment. It also includes accessories design, development, production, sales, and related products maintenance and service. They are mainly used in rail transit equipment, wind power generation, gas turbines, ocean engineering equipment, high-tech ships, civil buildings and petrochemical engineering, air and water treatment, cold chain, industrial refrigeration, heat dissipation, and other fields. Our primary customers include CRRC, GE, Mingyang Wisdom, Yantai Binglun, Bombardier, Alstom, Spick, Siemens, BAC, Dongfang Electric, Caterpillar, Baker Hughes, China Shipbuilding, Cnooc, and Kelvin. CreditFan has a total of 89 research and development engineers. 引进和培养了泰山产业领军人才2人，威海市海洋产业科技人才1人、威海市产业紧缺人才1人， Company has introduced and trained 2 Taishan industry leading talents, 1 marine industry science and technology talent within Weihai City, and 1 industry shortage talent within Weihai City. The company has complete independent research and development capabilities, including pneumatic design, reliability design, performance test, reliability test; comprehensive rapid design plan with high reliability, low noise, high efficiency, lightweight. The company has 58 patents, has undertaken more than ten provincial-level science and technology projects, and participated in 7 national and industry standards. Company is the former railway ministry traction motor cooling fan standard complication company obtained the "Civil Nuclear Safety Equipment Design License" and "Civil Nuclear Safety Equipment Manufacturing License" issued by the State Nuclear Safety Administration, the products have selected into the "Energy Efficiency Star" catalog of Ministry of Industry and Information Technology, the test center is accredited by the National CNAS Laboratory. CreditFan maintains and operates ISO9001 and ISO/TS 22163 quality assurance management systems, with nine quality engineers, nineteen quality inspection engineers, and twenty customer service engineers. Our quality system covers the metallurgical and mechanical properties of raw materials, electrical properties of motor products, welding quality, coating quality, product performance, and clients’ products services. We also have environmental tests, fatigue strength tests, and other destructive verification abilities. CreditFan is the first enterprise that has passed the IRIS system, AAR system certification, and CRCC certification in the national fan industry. To meet the requirements of the high-reliability industry, the company has established a non-destructive testing system RT、UT、MT、PT, with 1 level ⅲ holder of RT, UT, MT, and PT, 2 level ⅱ holders of each NDT, and two certification holders of PT, UT, and VT of nuclear grade. CreditFan manufacturing center has five workshops for blanking, welding, painting, assembly, and large impeller production, with an annual capacity of more than 30,000 axial fans, more than 20,000 centrifugal fans, and more than 30,000 cooling fans. Blanking molding equipment has Italy Savanini laser cutting machine, Germany Leifield spinning machine, and Japan Amada CNC bending machine with parts production accuracy of 0.1mm. The welding workshop follows ISO3834 and EN15085 system standards, with more than 40 international welders. We are also equipped with an automatic Kuka robot impeller intelligent production line, ABB automated welding robot, Phonis welding machine, constant temperature aluminum welding workshop, and ten other intelligent production lines to meet the flexible production requirements of high reliability and high precision products. The painting production workshop is equipped with intelligent and environmentally friendly automatic electrostatic spraying production to achieve zero solid waste discharge; an Automatic painting and baking production line, equipped with catalytic combustion, and online detection, that is, to meet the demand of production capacity, while green emissions. According to the product characteristics, the assembly workshop has four automatic production lines and four flexible production lines to meet the requirements of high-precision online testing and process monitoring Large impeller production workshop adopts high precision CNC blanking, machining center, high precision torque balance, and other advanced technology production, product precision is high, good consistency. Future, the company will continue to "provide low-carbon cooling solutions， serve the future green energy" as the business concept, achieve balanced and rapid development with multi-field , achieve nuclear power fields, developing to become the industry leader soon.