Qingdao Huicheng Environmental Protection Technology Co., Ltd.

Research and development, technical services, and technology transfer of petrochemical technology; installation, production, and sales of professional petrochemical equipment; refining catalysts (including but not limited to FCC catalysts, RFCC catalysts, PFCC catalysts, cracking catalysts), resurrection catalysts, regeneration balancing agents, R&D, production and sales of refining additives such as propylene additives, chemical catalysts, additives, and zeolite molecular sieves (excluding hazardous chemicals); harmless treatment and resource utilization of chemical solid waste and hazardous waste and technical consulting services (Business activities are carried out in accordance with the hazardous waste business license issued by the Shandong Provincial Environmental Protection Department), production and sales of related chemical products (excluding hazardous chemicals), import and export of goods, and technology import and export (the above business scope does not include national laws and regulations Projects that are restricted, prohibited, or eliminated, and projects that require approval according to law, can only carry out business activities after approval by relevant departments).