In late December, 2021, MIIT put forward the requirement in the green industrial development plan of “the 14th Five Year” that clean transformation should be carried out for industry processes.The plan mentions that “the industry should strengthen the systematic pollution reduction concept of pollution reduction in source,control in process and efficient governance at end.To vigorously promote green design and encourage incremental companies to take the lead to construct cleaner production modes at a high starting point.To encourage stock companies to carry out clean production process transformation.To guide companies to proactively upgrade the effect of clean process”.During the end treatment transformation, the plan also mentions that advanced applicable environment protection equipment should be promoted in key industries to construct stable and efficient governance.In the column about clean production transformation in key industries, the plan specially mentions the transformation of technologies and equipment related to nonferrous metal smelting such as aluminum, copper, zinc and magnesium.It is planned that clean production transformation will be completed for 4000 nonferrous furnaces by 2025.