The registered address of the joint fertilizer sindam technology ltd. Is located at the jaihan industrial park (formerly haiyang industrial park) in the hoiyang district of hoi fat city, with the registration authority being the market supervisory authority of the hoiang district of hoi fatty city, represented by legal persons, and operating in general terms: technical services, technology development, technical advice, technology exchange, technology transfer, technology diffusion; engineering and technological research and experimental development; research and development of resource recycling technologies; gas, liquid separation and pure equipment manufacture; specialized equipment for environmental protection; sewage treatment and recycling; marketing of new membrane materials; sale of chemical products (other than licensed chemical products); sale of mechanical parts, parts and components; maintenance services for information systems operation; import and export of goods; and import and export of technology (in addition to licensed operations, autonomous operation of legally not prohibited or restricted items)