商品日报（5月20日）：氧化铝冲高回落 工业硅、碳酸锂连创上市新低

Group 1: Commodity Market Overview - On May 20, the commodity market showed mixed results with aluminum oxide leading the gains, up 1.42%, while industrial silicon and other chemicals experienced declines of over 1% [2][4] - The China Commodity Futures Price Index closed at 1354.74 points, a slight increase of 0.03% from the previous trading day [1] Group 2: Aluminum Oxide Insights - The market is experiencing anxiety over supply due to the suspension of operations at the Axis mine in Guinea, which has led to a temporary price increase for aluminum oxide [2] - Despite the price increase, the overall supply of aluminum oxide remains relatively stable, with a significant increase in China's bauxite imports, which rose 25.62% month-on-month and 45.44% year-on-year in April 2025 [2] Group 3: Oil and Fats Market Analysis - Palm oil futures rose by 1.25%, with expectations of continued expansion in biodiesel production capacity in the U.S. driving demand [3] - Domestic soybean oil faces pressure from an influx of soybeans expected to arrive in the May-July period, which may weaken the basis [3] Group 4: Industrial Silicon and Lithium Carbonate Trends - Industrial silicon prices are under pressure as demand from downstream sectors like organic silicon and polysilicon declines, despite a recovery in production due to favorable electricity costs [4] - Lithium carbonate prices are nearing 60,000 yuan, with supply pressures persisting and a slow destocking process affecting the market [4]