Liaoning Tonghua Environmental Protection Technology Co., Ltd. was established in September 2021, is a wholly-owned private enterprise. The main business of the company is harmless and comprehensive utilization of hazardous waste aluminum ash overhaul residue in the production process of electrolytic aluminum plant. The total area of the project is 27618m2, the total construction area is 20000m2, and the comprehensive utilization workshop of overhaul residue is 8000m2. Aluminum ash comprehensive utilization workshop 4000m2. Hazardous waste temporary storage 4000m2, finished product storage 3000m2, office building 1000m2, a total investment of 150 million.