[SMM Analysis: In April, alumina prices at home and abroad rose sharply, and spot prices may remain high and volatile before the mass resumption of production in domestic mines] Domestic alumina companies have recently been reducing production and resuming production at the same time. Before the resumption of mass production in domestic mines, there may be no significant increase in short-term supply. As for demand, according to SMM research, in May, the operating capacity of domestic electrolytic aluminum will continue to increase mainly due to the steady recovery of power supply in Yunnan and the steady resumption of the remaining production capacity. SMM expects that Yunnan will have an annual production capacity of 350,000 tons in May, and there is no significant change expected in other regions. SMM predicts...