Hangzhou Su Tai Technology Co., Ltd. was established on January 24, 2018, with its registered address at No. 452, 6th Street, Baiyang Sub-district, Qiantang District, Hangzhou, Zhejiang Pilot Free Trade Zone, China, and the legal representative is Zhang Lin. The company is engaged in general projects including: technical services, development, consultation, exchange, transfer, and promotion; manufacturing of specialized environmental protection equipment; vibration and noise reduction equipment; special instruments and meters for environmental monitoring; manufacturing of ecological environment materials; manufacturing of industrial automatic control system equipment; dust removal equipment manufacturing; industrial engineering design services; standardization services; engineering management services; research and development of engineering and technology; environmental consulting services; certification consultation; noise and vibration control services; light pollution treatment services; soil pollution treatment and remediation services; water pollution treatment; air pollution treatment; indoor air pollution treatment; sales of ecological environment materials; sales of specialized chemical products (excluding hazardous chemicals); sales of chemical products (excluding licensed chemical products); sales of industrial control computers and systems; sales of instruments and meters; electrical equipment repair; maintenance of electronics and mechanical equipment (excluding special equipment); general mechanical equipment installation services; graphic design and production; technology intermediary services (except for projects that require special approval, the company operates independently and lawfully according to its business license).