From January to September 2018, the global primary aluminum market was short of 206,000 tons. In 2017, the shortage of raw materials in the raw materials market was 1.175 million tons. The demand for primary aluminum in January-September 2018 was 44.7 million tons, a decrease of 675,000 tons from the same period in 2017. From January to September 2018, primary aluminum production increased by 118,000 tons. LME primary aluminum stocks fell by 50,000 tons in September this year, as stocks in warehouses in Malaysia, Singapore, South Korea and the Netherlands fell. As of the end of September, LME aluminum stocks were 2.308 million tons, compared with 2.346 million tons at the end of 2017. As of the end of September 2018, the total stocks of the four major exchanges in London, Shanghai, the United States and Tokyo were 1.828 million tons, down 114,000 tons from the end of December 2017. From January to September 2018, global primary aluminum production increased by 0.3% year-on-year. China's primary aluminum production is estimated at 24.799 million tons, accounting for 56% of global production. Apparent consumption of primary aluminum in China increased by 1.3% from January to September 2017. China's net export of unwrought aluminum from January to September was 291,000 tons, compared with 275,000 tons in the same period of last year. The net export volume of aluminum semi-finished products from January to September was 3.683 million tons, compared with 2.916 million tons in the same period last year. From January to September 2018, global primary aluminum demand fell by 1.5% year-on-year. In September 2018, the global primary aluminum production was 4,934,500 tons, and the consumption was 4,875,500 tons.