Report Summary 1. Report Industry Investment Rating - Not provided in the given content. 2. Core Viewpoints of the Report - The overall idea is to go long on dips, considering the slowdown of the US labor market, the rising expectation of the Fed's interest - rate cut, the loosening of Trump's tariff policy, the arrival of the domestic downstream demand peak season, and the approaching inventory inflection point. A long - AD short - AL arbitrage strategy is recommended [3]. 3. Summary by Relevant Catalogs 3.1. Weekly Viewpoint - **Fundamental Analysis**: Guinea's bauxite prices rose by $0.2 per dry ton to $75 due to the rainy season and mining复产 uncertainties. Alumina operating capacity increased by 1.7 million tons to 96.75 million tons, and inventory rose by 112,000 tons to 3.609 million tons. Electrolytic aluminum operating capacity increased by 30,000 tons to 44.399 million tons. Domestic downstream processing enterprises'开工 rate rose by 1% to 61.7%. Aluminum ingot and bar social inventory increased but at a slower pace. The secondary casting aluminum alloy industry recovered moderately, with increased but under - expected orders, and new policies pressured production [3]. - **Strategy Recommendations**: For alumina, it is recommended to wait and see; for Shanghai aluminum, it is recommended to go long on dips; for casting aluminum alloy, it is recommended to go long on dips or use the long - AD short - AL strategy [4]. 3.2. Macroeconomic Indicators - The report presents data on US Treasury yields, the US dollar index, inflation expectations, and the RMB exchange rate, but no specific analysis is provided [6][7]. 3.3. Bauxite - Domestic bauxite supply tightened, with stable prices in Shanxi and Henan due to strengthened safety supervision, environmental inspections, and rainfall. Guinea's bauxite prices rose due to the rainy season and复产 uncertainties [10]. 3.4. Alumina - As of last Friday, the built - in capacity was 114.62 million tons (unchanged week - on - week), the operating capacity was 96.75 million tons (up 1.7 million tons week - on - week), and the开工 rate was 84.4%. The domestic spot weighted price was 3,101 yuan/ton (down 82.4 yuan/ton week - on - week). National alumina inventory was 3.609 million tons (up 112,000 tons week - on - week). Newly put - into - production capacity in Shandong, Guangxi, and the north entered a stable - production state [14]. 3.5. Alumina Important High - Frequency Data - The report shows data on alumina basis, inventory, north - south price difference, and transportation volume, but no specific analysis is provided [16][17][18][19]. 3.6. Electrolytic Aluminum - As of last Friday, the built - in capacity was 45.232 million tons (unchanged week - on - week), and the operating capacity was 44.399 million tons (up 30,000 tons week - on - week). The operating capacity increased steadily, with the resumption of production in Guizhou and the commissioning of replacement capacity in Yunnan Aluminum Yixin basically completed, and the remaining 50,000 - ton capacity of Baise Silver Sea's technical renovation project continuing to resume production [21]. 3.7. Electrolytic Aluminum Important High - Frequency Data - The report presents data on aluminum rod processing fees, Shanghai aluminum futures prices,动力煤 prices, and aluminum import profits, but no specific analysis is provided [25]. 3.8. Inventory - The report shows the historical data of aluminum bar, aluminum ingot, SHFE aluminum futures, and LME aluminum inventories, but no specific analysis is provided [27][28][29][30]. 3.9. Casting Aluminum Alloy - The开工 rate of secondary aluminum alloy leading enterprises rose by 1.8% to 55.3%. New policies pressured production, with some enterprises in Anhui and Jiangxi receiving tax - refund termination notices and some planning to implement new policies on September 1st. In September, the secondary aluminum industry recovered moderately, with increased but under - expected orders [33]. 3.10. Casting Aluminum Alloy Important High - Frequency Data - The report shows data on ADC12 aluminum alloy ingot prices, aluminum ingot and aluminum alloy price differences, aluminum alloy futures forward curves, and ADC12 aluminum alloy ingot import profits, but no specific analysis is provided [32][38][39]. 3.11. Downstream开工 - The开工 rate of domestic aluminum downstream processing leading enterprises rose by 1% to 61.7%. - **Aluminum Profiles**: The开工 rate rose by 1% to 53%. Industrial profiles' export demand increased due to the cancellation of component tax rebates, and automotive profiles' production was stable. Construction profiles' demand remained sluggish [46]. - **Aluminum Plates and Strips**: The开工 rate rose by 1.2% to 68.6%. With the arrival of the peak season, both domestic and foreign trade orders increased, and enterprises' willingness to stock raw materials and finished products strengthened [46]. - **Aluminum Cables and Wires**: The开工 rate rose by 1% to 64.8%. Although new orders were limited, existing orders provided support. State Grid orders were concentrated in the second half of the year, leading to different recovery rhythms in different regions [50]. - **Primary Aluminum Alloys**: The开工 rate rose by 0.2% to 56.6%. The traditional consumption peak season started, but the resumption of production in the aluminum bar and other primary processing sectors continued to divert molten aluminum, resulting in a slow recovery at the beginning of the peak season [50].