安如泰山 信守承诺 【国投期货|化工视点】 烧碱专题： 下游氧化铝需求分析 专题报告 在烧碱的下游需求中，氧化铝需求占比最大，达到30%，对烧碱有较强的议价能力，而今年烧碱行情的大 涨大跌，背后与氧化铝有着密切的关联，下文我们将从氧化铝角度分析烧碱的需求，以及背后驱动今年行情剧 烈波动的原因。 1、进口铝土矿耗碱量低 氧化铝是烧碱最大的下游，占比为30%，烧碱需求量跟氧化铝行业产量增速密切相关，烧碱的需求受到氧 化铝产量增速影响以外，还受到铝土矿品质的影响。氧化铝生产工艺有三种，为拜耳法、烧结法、拜耳烧结联 合法，由于拜耳法生产工艺简单，流程短，产品质量高，目前主流的生产方法是拜耳法，约占全国氧化铝产能 的90%以上，全球占比达到95%以上。拜耳法使用烧碱，适于处理高品位的铝土矿； 烧结法使用轻碱；联合法 产能很少，仅山西、重庆地区部分氧化铝装置维持两种方法共存的生产工艺，一般两者价差波动不大时，不太 会轻易更换设备，只有价差严重失衡时，才会选择更换设备。 想要 ge 代招 铝+矿 the may 智液 aku 曲级铝 | 矿石类型 | 铝硅比(Al/Si) | 单吨氧化铝耗碱量(kg) | 矿耗(吨矿/吨氧 ...

Group 1: Report Industry Investment Rating - No relevant content provided Group 2: Core Views of the Report - Last week, the cost - inversion situation of alumina enterprises was still severe, production willingness decreased, and some enterprises cut production. There are still maintenance and production - cut plans in the future. The new northern production capacity has not shown an increase in supply, and there are negative news, leading to market观望 about its future production increase [3][8]. - The demand from electrolytic aluminum enterprises was mainly about capacity transfer last week, with theoretical demand remaining basically unchanged. The exchange warehouse receipt inventory decreased by 57,427 tons to 243,000 tons, and the factory warehouse decreased by 900 tons to 7,200 tons [3][8]. - Overall, some alumina enterprises are still in a theoretical loss state. With maintenance and production - cut plans and the new production capacity causing concerns, the alumina has good bottom support. However, it is also affected by the new production capacity commissioning process and the potential decline in costs, so it has the impetus to rebound but the height is expected to be limited [3][8]. Group 3: Summary by Related Catalogs Transaction Data | Category | 2025/4/30 | 2025/5/9 | Change | Unit | | --- | --- | --- | --- | --- | | Alumina Futures (Active) | 2729 | 2827 | 98 | Yuan/ton | | Domestic Alumina Spot | 2900 | 2907 | 7 | Yuan/ton | | Spot Premium | 149 | 77 | -72 | Yuan/ton | | Australian Alumina FOB | 348 | 349 | 1 | US dollars/ton | | Import Profit and Loss | -285.39 | -280.49 | 4.9 | Yuan/ton | | Exchange Warehouse | 271413 | 242563 | -28850 | Tons | | Exchange Factory Warehouse | 7200 | 7200 | 0 | Tons | | Bauxite in Shanxi (6.0≤Al/Si<7.0) | 600 | 600 | 0 | Yuan/ton | | Bauxite in Henan (6.0≤Al/Si<7.0) | 600 | 600 | 0 | Yuan/ton | | Bauxite in Guangxi (6.5≤Al/Si<7.5) | 460 | 460 | 0 | Yuan/ton | | Bauxite in Guizhou (6.5≤Al/Si<7.5) | 510 | 510 | 0 | Yuan/ton | | Guinea CIF | 77 | 75 | -2 | US dollars/ton | [4] Market Review - Alumina futures' main contract rose 2.59% last week, closing at 2,827 Yuan/ton. The national weighted - average price of the spot market on Friday was 2,907 Yuan/ton, up 7 Yuan/ton from the previous week [6]. - For bauxite, the cost pressure of alumina producers was slightly relieved. After the holiday, inland alumina enterprises lowered the purchase price of domestic ore, and there were rumors about the second - quarter price cut of Guinea's long - term bauxite contracts [6]. - On the supply side, some new alumina production capacity was put into operation last week, but some enterprises carried out maintenance and production cuts. As of May 8, China's alumina production capacity was 110.6 million tons, the operating capacity was 86.55 million tons, and the operating rate was 78.25% [6]. - On the consumption side, the electrolytic aluminum capacity in Shandong continued to transfer to Yunnan, and the theoretical operating capacity of the industry remained stable, with no obvious change in the demand for alumina. As of now, the theoretical operating capacity of the electrolytic aluminum industry this week was 43.835 million tons, the same as last week [6]. - In terms of inventory, last Friday, the alumina futures warehouse receipt inventory decreased by 57,427 tons to 243,000 tons, and the factory warehouse decreased by 900 tons to 7,200 tons [6]. Market Outlook - The situation is the same as the core views, including cost - inversion, production cuts, new production capacity issues, stable demand, and the situation of inventory change. Alumina has support at the bottom and rebound impetus but limited upside [8]. Industry News - The Shanxi Bureau of the National Mine Safety Supervision issued a notice to standardize mine safety supervision and law - enforcement behavior, aiming to improve law - enforcement efficiency and prevent mine safety accidents [9]. - Guinea held a publicity seminar to promote the national framework for compensating, indemnifying, and resettling the population affected by development projects [9]. - Lindian Resources acquired the remaining 25% stake in Bauxite Holding to gain full ownership of the Lelouma bauxite project in Guinea and eliminate risks related to ownership dilution and finance [9]. Related Charts - The report provides charts on alumina futures price trends, alumina spot prices, alumina spot premiums, alumina month - to - first - continuous spread, domestic bauxite prices, imported bauxite CIF, caustic soda prices, thermal coal prices, alumina cost - profit, and alumina exchange inventory [10][12][13]