The registration address of henan's grand jane environmental engineering ltd. Is located at 10 yongli road, yongliang road street, zhengzhou city, henan province. The registration authority is the zhong yi city market supervision authority, with legal representatives representing the republic of korea, and operates in the following areas: production, sale of water purification materials; sale of: water treatment equipment, environmental protection equipment, air purification equipment, chemical products (excluding dangerous chemicals); construction of environmental works; construction of river and lake remediation works; construction of water protection against corruption; technical services of environmental equipment; maintenance of water treatment equipment; and cleaning of equipment。