The supply of domestic alumina in the market has not yet improved, so it continues to be beneficial to the price of domestic alumina. The sudden incident in Guinea disrupted market expectations, causing futures prices to rise first. It is not ruled out that the spot price of alumina will follow suit. There are still potential risks in overseas temporary supply. Therefore, in the short term, the prices of alumina at home and abroad will rise simultaneously, and the futures prices will fluctuate significantly in the short term due to the news that Guinea has withdrawn mining.