Report Industry Investment Ratings - Aluminum: ★☆☆, indicating a bullish bias but limited operability in the market [1] Core Viewpoints - The prices of various non - ferrous metals are affected by multiple factors such as economic indicators, supply - demand relationships, and policy expectations. Different metals show different trends and investment opportunities [1][2][3] Summary by Metal Copper - On Monday, Shanghai copper showed a positive line oscillation. Spot copper rose to 80,940 yuan, with premiums in Shanghai and Guangdong on the last trading day being 80 and 20 yuan respectively. The refined - scrap price difference widened to 2,000 yuan. SMM copper social inventory increased by 9,900 tons to 154,200 tons over the weekend. It is recommended to take profits on previous long positions and pay attention to the premium fluctuations of the call option with an exercise price of 82,000 yuan for the 2510 contract [1] Aluminum, Alumina, and Aluminum Alloy - Shanghai aluminum slightly corrected today, with the spot discount widening in various regions. The downstream start - up continued to pick up seasonally, and the aluminum ingot inventory is likely to remain low this year. However, the social inventory of aluminum ingots has not yet shown an inflection point, increasing by 11,000 tons compared to last Thursday. Cast aluminum alloy follows the fluctuation of Shanghai aluminum. Alumina's operating capacity is at a historical high, with oversupply and falling prices [2] Zinc - LME zinc inventory is at a low level of 50,500 tons, with a 0 - 3 month premium of $30.17 per ton. London zinc rebounded to the high - level range at the beginning of the year. Shanghai zinc is still dragged down by weak fundamentals and fluctuates narrowly above 22,000 yuan. The import loss of zinc compared to the spot exceeds 3,300 yuan per ton, and the expectation of zinc ingot exports is strengthening [3] Lead and Stainless Steel - Shanghai nickel oscillated at a low level. The short - covering retreat was triggered by the speculation of interest - rate cut expectations. The upstream price support of nickel has rebounded slightly, and the price level of the nickel industry chain has been pushed up. The pure nickel inventory increased by 1,000 tons to 41,000 tons, the nickel - iron inventory decreased by 4,000 tons to 29,200 tons, and the stainless - steel inventory decreased by 16,000 tons to 919,000 tons [6] Tin - Shanghai tin showed a positive line oscillation, with the spot tin price dropping to 273,300 yuan. Overseas, although the positions are still relatively concentrated, the position - volume risk has decreased. Domestic leading production capacity is under maintenance. Technically, there is resistance at 275,000 yuan for the domestic market and $35,000 for the overseas market. It is not recommended to chase long positions [7] Lithium Carbonate - The total market inventory decreased by 1,000 tons to 138,500 tons. The smelter inventory decreased by 3,200 tons to 36,000 tons, and the downstream inventory increased by 3,000 tons to 58,000 tons. The price of lithium carbonate has a low - level support, and a short - term bullish view is taken [8] Industrial Silicon - Industrial silicon was boosted by coal - related news, reaching 9,000 yuan per ton during the day and then falling back to close at 8,800 yuan per ton. In September, the supply - side output is expected to increase by 5% month - on - month, while the downstream polysilicon and organic silicon industries are expected to have a slight decline in output. The short - term is expected to maintain a volatile operation [9] Polysilicon - The main contract of polysilicon closed slightly down at 53,500 yuan per ton. Only a few enterprises have implemented production cuts, and the reduction range is limited. The main contract of polysilicon can be expected to oscillate in the range of 50,000 - 55,000 yuan per ton [10]