1. Report Industry Investment Rating - There is no information provided regarding the report industry investment rating in the given content. 2. Core Viewpoints of the Report - For alumina, suggest light - position oscillatory trading, control rhythm and trading risks due to factors like supply and demand changes and technical indicators [2]. - For electrolytic aluminum, recommend light - position oscillatory trading, pay attention to rhythm and trading risks considering supply - demand situation and option market sentiment [2]. - For cast aluminum alloy, advocate light - position oscillatory trading, control rhythm and trading risks based on raw material supply, supply - demand and technical analysis [2]. 3. Summary According to Relevant Catalogs 3.1 Futures Market - **Aluminum - related Contracts**: The closing price of the Shanghai aluminum main contract is 21,910 yuan/ton, up 45 yuan; the main - second - consecutive contract spread is - 75 yuan, up 10 yuan. The main contract position of Shanghai aluminum is 258,440 hands, down 7,183 hands. The LME aluminum three - month quotation is 2,888 US dollars/ton, up 23 US dollars; the LME aluminum inventory is 537,900 tons, down 1,150 tons. The Shanghai - London ratio is 7.59, down 0.05 [2]. - **Alumina Contracts**: The closing price of the alumina futures main contract is 2,670 yuan/ton, down 7 yuan; the main - second - consecutive contract spread is - 85 yuan, up 1 yuan. The main contract position of alumina is 358,708 hands, down 1,212 hands [2]. - **Cast Aluminum Alloy Contracts**: The closing price of the cast aluminum alloy main contract is 21,095 yuan/ton, up 40 yuan; the main - second - consecutive contract spread is - 115 yuan, down 60 yuan. The main contract position is 15,759 hands, up 12,052 hands [2]. 3.2 Spot Market - **Aluminum Spot**: The price of Shanghai Non - ferrous Network A00 aluminum is 21,730 yuan/ton, up 280 yuan; the price of Yangtze River Non - ferrous Market AOO aluminum is 21,730 yuan/ton, down 40 yuan. The Shanghai Material Trade aluminum premium/discount is - 60 yuan, unchanged. The LME aluminum premium/discount is - 27.51 US dollars/ton, down 1.56 US dollars [2]. - **Alumina Spot**: The alumina spot price of Shanghai Non - ferrous is 2,770 yuan/ton, unchanged. The average price (tax - included) of ADC12 aluminum alloy ingots nationwide is 21,500 yuan/ton, unchanged [2]. - **Base - related Data**: The base of cast aluminum alloy is 405 yuan/ton, down 305 yuan; the base of electrolytic aluminum is - 180 yuan/ton, up 235 yuan; the base of alumina is 100 yuan/ton, up 7 yuan [2]. 3.3 Upstream Situation - **Alumina Production and Supply - demand**: The monthly output of alumina is 786.50 million tons, down 13.40%. The demand for alumina (electrolytic aluminum part) is 730.23 million tons, up 25.92 million tons. The supply - demand balance of alumina is 37.98 million tons, down 8.87 million tons [2]. - **Aluminum Scrap Trade**: The average price of crushed raw aluminum in Foshan metal scrap is 17,150 yuan/ton, up 200 yuan; in Shandong metal scrap is 16,700 yuan/ton, up 150 yuan. China's import of aluminum scrap and fragments is 158,360.01 tons, up 2,945.61 tons; export is 32.46 tons, down 36.08 tons [2]. - **Alumina Import and Export**: The export of alumina is 18.00 million tons, down 7.00 million tons; the import is 18.93 million tons, up 12.93 million tons [2]. 3.4 Industry Situation - **Electrolytic Aluminum**: The import of primary aluminum is 248,261.37 tons, up 4,462 tons; the export is 24,573.56 tons, down 4,396.36 tons. The total production capacity of electrolytic aluminum is 4,523.20 million tons, unchanged. The production of electrolytic aluminum is affected by winter environmental protection and seasonal demand, showing a slight decline [2]. - **Aluminum Products**: The monthly output of aluminum products is 569.40 million tons, down 20.60 million tons. The export of unwrought aluminum and aluminum products is 50.00 million tons, down 2.00 million tons [2]. - **Recycled Aluminum Alloy**: The production of recycled aluminum alloy ingots is 60.83 million tons, down 4.82 million tons. The export of aluminum alloy is 3.09 million tons, up 0.74 million tons [2]. 3.5 Downstream and Application - **Automobile Industry**: The monthly output of automobiles is 327.90 million vehicles, up 5.25 million vehicles [2]. - **Real Estate**: The National Housing Prosperity Index is 92.43, down 0.34 [2]. 3.6 Option Situation - The 20 - day historical volatility of Shanghai aluminum is 10.66%, down 0.30%; the 40 - day historical volatility is 10.72%, down 0.01%. The implied volatility of the Shanghai aluminum main - contract at - the - money IV is 10.04%, up 0.0081. The call - put ratio is 1.69, up 0.0507 [2]. 3.7 Industry News - The US November ISM manufacturing PMI index dropped 0.5 points to 48.2, below the boom - bust line of 50 for nine consecutive months [2]. - In November, BYD's new - energy vehicle sales were 480,200 units. Zero - Run's total delivery reached 70,327 units, up over 75% year - on - year. Other auto companies also had different sales performances [2]. - French President Macron will visit China from December 3 - 5 [2]. - The production schedule of the three major white - goods in December 2025 is 30.18 million units, down 14.1% compared with the same period last year [2]. 3.8 Alumina View Summary - The alumina main contract oscillates downward, with decreasing positions, spot premium, and strengthening basis. Supply may gradually converge due to profit issues, and demand shows some resilience. Suggest light - position oscillatory trading [2]. 3.9 Electrolytic Aluminum View Summary - The Shanghai aluminum main contract oscillates stronger, with decreasing positions, spot discount, and strengthening basis. Supply decreases slightly, and demand has some resilience due to end - of - year factors. The option market sentiment is bullish. Recommend light - position oscillatory trading [2]. 3.10 Cast Aluminum Alloy View Summary - The cast aluminum main contract oscillates, with increasing positions, spot premium, and weakening basis. Supply may decline due to raw material shortage, and demand has some support from end - of - year consumption. Suggest light - position oscillatory trading [2].

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