成本线支撑较强 氧化铝下方空间有限

Core Viewpoint - The alumina market is experiencing a supply surplus and rising inventory levels, leading to downward pressure on prices, although there are signs of stabilization in late October [1][9]. Supply and Production - In October, China's bauxite production was 4.7723 million tons, a slight decrease of 2.2% month-on-month and a 6.9% year-on-year decline; cumulative production from January to October reached 50.5155 million tons, up 5.2% year-on-year [2]. - Domestic bauxite inventory at alumina plants was 52.45 million tons, showing a slight decrease but remaining at a high level, indicating weak replenishment intentions [2]. - In October, China's metallurgical-grade alumina production was 7.7853 million tons, a month-on-month increase of 2.4% and a year-on-year increase of 6.8%; cumulative production from January to October reached 74.458 million tons, up 8.1% year-on-year [4]. Inventory Levels - As of last week, the total alumina inventory in China reached 4.732 million tons, continuing to rise, with electrolytic aluminum plants holding 3.269 million tons of alumina, indicating sufficient raw material reserves [5]. - The Shanghai Futures Exchange's total alumina inventory reached 248,000 tons, with warehouse receipts at 237,000 tons, both at relatively high levels [5]. Downstream Impact - In October, China's electrolytic aluminum production was 3.7421 million tons, a month-on-month increase of 3.5% and a year-on-year increase of 1.1%; however, production is expected to decline to 3.62 million tons in November due to environmental factors affecting some enterprises [8]. - The operating capacity for electrolytic aluminum remained stable at 4.406 million tons, with a utilization rate of 96.1%, indicating limited room for production increases [8]. Price Dynamics - Alumina prices are under significant pressure, nearing the industry's average cost line, which may lead to increased expectations for production cuts among alumina producers due to compressed industry profits [4][9]. - The overall supply-demand balance for alumina remains loose, with high inventory levels, suggesting limited further downside for prices due to strong cost support [9].