The registered address of tianjin vietteng biotechnology limited is at 57 points 402-e03 on lake central lake in the western district of tianjin city, with the registration authority being the market supervision authority of the western region of tianjin city, represented by a legal person, and covers general projects: technical services, technology development, technical advice, technology exchange, technology transfer, technology promotion; sale of type i medical equipment; sale of experimental analytical instruments; technical development of biochemical products; sale of specialized chemical products (excluding hazardous chemicals); and sale of chemical products (excluding licensed chemical products). (in addition to projects subject to authorization under the law, the operation of the business is carried out autonomously under a licence)