[Chinalco: with the continuous release of electrolytic aluminum production capacity in Yunnan is expected to form a certain support for alumina prices]-- in a recent institutional survey, Chinalco said that although the overall production of alumina has increased this year, however, from the overall supply and demand situation, it is still in a state of loose balance. The recent decline in alumina prices is mainly due to the reduction of alumina production costs. in the later stage, with the continuous release of electrolytic aluminum production capacity in Yunnan, it is expected to form a certain support for alumina prices.