The registration address of shenzhen city hee-cheng environmental science and technology ltd. Is located in shenzhen city, shenzhen city, on the 4th industrial district, no. 707 a3 in mada street street, swede bay community, and the registration authority is shenzhen city market supervision authority, which is represented by legal persons and operates in the fields, including the development and sale of environmentally friendly equipment, exhaust gas treatment equipment, mechanical and electrical equipment; the sale of plastics, hardware products, hardware accessories, electroplating machines; the sale of masks, protective clothing, body warmth guns, goggles, disinfection fluids; domestic trade, import and export of goods and technology. (category 2 medical devices only and operated without three types of medical equipment); goods transported by road (other than networked cargo and dangerous goods) for general cargo vehicles of a total mass of 4. 5 tons and below. ;lease services (excluding licensed lease services). Intelligence control system integration; atmospheric environmental pollution prevention and control services; environmental protection monitoring; atmospheric pollution management; electrical power and its control system development; network technology services; marketing planning; network and information security software development; information systems operation maintenance services; software development; business image planning; business management consulting; specialized equipment for environmental protection; plastics; hardware products; electronic metaware and electromechanical components. Installation and maintenance of environmentally friendly equipment, exhaust gas treatment equipment, electromechanical equipment, plastics, electroplating machine equipment, urban distribution of transport services (without dangerous goods) (in addition to legally authorized projects). (a project subject to legal approval may only be carried out with the approval of the relevant department, subject to the approval documents or licences of the relevant department)