China's alumina exports had a significant jump in March, reaching their second-highest level. The 300,000 tons shipped were more than double the amount from the same time last year. This surge was due to a domestic oversupply of alumina after new production capacity caused prices to fall sharply.

Unlike other Chinese metals, alumina exports go mainly to a few buyers. Russia, facing a shortage of raw materials, took the largest share at 48% of China’s exports last month. Indonesia and the UAE were also significant destinations, accounting for 19% and 23% respectively.

Lower domestic prices have created opportunities for profitable overseas sales, and experts predicted that export volumes will likely stay high at around 150,000 to 200,000 tons in the coming months.