The registered address of the porto city environmental protection equipment company limited is in the village of chirritan, in the town of hao, in the city of poojo, in hebei province. The registration authority is the city of poo city market supervision authority, represented by the legal person wang yi, and covers the production, installation, sale of dust removal equipment and accessories; production, sale, installation and maintenance of desulphurization equipment and accessories, sewage treatment equipment and accessories; installation of environmental works; sale of machine tools, valves, utensils and bellows* ** (projects subject to approval under the law and subject to the approval of the relevant department before operating)