China's alumina output this year output would reach 13 million tons and the earlier estimates of 14 million tons in 2010 were "obviously too low," an industry association official has said.

Accoroding to Wen Xianjun, secretary-general of the aluminium branch of the China Non-ferrous Metals Industry Association (CNMIA), China's alumina output was 9.44 million tons in the first nine months, up 57 percent from the same period last year.

Imports of alumina had dropped by 1.5 percent from a year ago with the country's dependence on imported alumina falling from 45 to 36 percent.

The world's second largest alumina producer, China accounted for more than 24 percent of the world's alumina consumption last year.

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