The legal representative of ningjinsein environmental science and technology ltd. Is yao yao yingyang and operates on general projects: technical services, technology development, technical advice, technology exchange, technology transfer, technology diffusion; marketing of new catalytic materials and aids; manufacture of auto parts and accessories; atmospheric pollution management; specialized equipment for environmental protection; research and development of new materials; marketing of eco-environmental materials; environmental advisory services; storage technology services; networking technology services; and import and export of goods。