The registration address of the mayor of shenzhen, rong science and technology ltd. Is located at 22 b401 (a multi-site enterprise) located in the centre of the street of the yonggang district of shenzhen city, and is registered as the shenzhen market supervision authority, with legal representatives cai jinshan, and includes general operating projects: environmental science and technology research services; water pollution management; sewage treatment and recycling; sale of specialized equipment for environmental protection; sale of environmental instruments; specialized medicines for environmental pollution treatment, sale of materials (except for controlled chemicals and hazardous chemicals); specialized design services for environmental engineering; engineering environmental facilities construction; environmental assessment; environmental protection monitoring; ecological monitoring; indoor environmental monitoring; water pollution monitoring; soil and water conservation monitoring; air pollution monitoring; noise pollution monitoring; waste monitoring; software development; data processing and storage services; trade in environmentally sound management goods (except for licensed goods); import and export of technology; marketing of membrane treatments; import and export of goods ... (project subject to authorization in accordance with the law, permission to operate). Software sales. (in addition to legally approved projects, operating activities are carried out on an autonomous basis under a legal licence; gas, liquid separation and pure equipment manufacture; sale of gas, liquid separation and pure equipment; sale of new membrane materials; development of new materials and technologies; manufacture of new membrane materials; production of eco-environmental materials; marketing of eco-environmental materials; development of technologies for the use of non-conventional water sources. Licenced to operate projects (in addition to those subject to legal authorization, operating on the basis of a legal licence): special equipment for environmental protection, instruments for environmental protection, special agents for the treatment of environmental pollution, material manufacture (except for controlled chemicals, hazardous chemicals), electronic equipment for computer applications; general freight transport; sale of lime production (except for specialized commodities); production of membrane treatment agents。