According to foreign news on November 25, Russian aluminum (Rusal) said on Monday that as part of production optimization plan, the company will cut production by more than 6% in response to high alumina prices and rising macroeconomic risks. Rusal, the world's largest aluminium producer outside China, said it would cut annual output by 250,000 tonnes due to a surge in alumina prices this year due to supply disruptions at bauxite mines in Guinea and Brazil and a suspension of production in Australia. Alumina prices have more than doubled since the start of the year to more than $700 a tonne. "As a result, the share of alumina in aluminum cash costs increased from the normal level of 30-35 percent to more than 50 percent," Rusal said. It added that there would be no job cuts. Rusal says it has to buy more than a third of its alumina from abroad at market prices.