[SMM: waste aluminum industry development status price influence factors and 2022 trend prospect] after SMM: aluminum ash is included in the national hazardous waste list, the increase of treatment costs will increase the cost of waste aluminum, and the high silicon price will increase the value advantage of high silicon alloy waste aluminum. This part will make the price difference of raw aluminum fine waste fluctuate positively with the silicon-aluminum price difference. From the point of view of the balance of supply and demand, if real estate and automobile consumption continues to be weak, the growth rate of waste aluminum consumption will continue to slow in 2022, then the price gap between mainstream waste aluminum such as profile aluminum and mechanical raw aluminum will widen.