1. Report Industry Investment Rating - There is no information about the industry investment rating in the provided content. 2. Core Viewpoints of the Report - The market sentiment of industrial silicon has cooled down [1]. - Attention should be paid to the disturbances in the news for polysilicon [2]. - The trend intensity of industrial silicon and polysilicon is -1, indicating a bearish outlook [4]. 3. Summary by Relevant Catalogs 3.1 Fundamental Tracking 3.1.1 Industrial Silicon and Polysilicon Futures Market - Si2511: The closing price is 8,600 yuan/ton, with a decrease of 240 yuan compared to T - 1, 100 yuan compared to T - 5, and 95 yuan compared to T - 22. The trading volume is 510,280 lots, with a decrease of 10,224 lots compared to T - 1, an increase of 45,197 lots compared to T - 5, and a decrease of 963,713 lots compared to T - 22. The open interest is 284,500 lots, with an increase of 5,640 lots compared to T - 1, an increase of 75,764 lots compared to T - 5, and a decrease of 118,390 lots compared to T - 22 [2]. - PS2511: The closing price is 51,290 yuan/ton, with a decrease of 510 yuan compared to T - 1 and 55 yuan compared to T - 5. The trading volume is 395,645 lots, with a decrease of 86,164 lots compared to T - 1 and 24,556 lots compared to T - 5. The open interest is 132,463 lots, with a decrease of 3,592 lots compared to T - 1 and 5,933 lots compared to T - 5 [2]. - Spread and Cost: The spread between the near - month contract and the first - continuous contract for industrial silicon is 5 yuan/ton, and the cost of the long - near - month and short - first - continuous inter - period arbitrage is 46.3 yuan/ton. The spread between the near - month contract and the first - continuous contract for polysilicon is 235.0 yuan/ton [2]. 3.1.2 Basis - Industrial silicon: The spot premium against East China Si5530 is +825 yuan/ton, against East China Si4210 is +375 yuan/ton, and against Xinjiang 99 silicon is +225 yuan/ton. - Polysilicon: The spot premium against N - type re - investment material is - 4290 yuan/ton [2]. 3.1.3 Price - Industrial silicon: Xinjiang 99 silicon is 8800 yuan/ton, Yunnan Si4210 is 10000 yuan/ton. - Polysilicon: N - type re - investment material is 47000 yuan/ton. - Other related products: Trichlorosilane is 3350 yuan/ton, silicon powder (99 silicon) is 10150 yuan/ton, silicon wafers (N - type - 210mm) are 1.55 yuan/piece, battery cells (TOPCon - 210mm) are 0.285 yuan/watt, components (N - type - 210mm, centralized) are 0.674 yuan/watt, photovoltaic glass (3.2mm) is 18 yuan/cubic meter, and photovoltaic - grade EVA price is 9600 yuan/ton [2]. 3.1.4 Profit - Silicon plant profit: For Xinjiang new - standard 553, it is - 2701 yuan/ton; for Yunnan new - standard 553, it is - 3439 yuan/ton. - Polysilicon enterprise profit is - 16.9 yuan/kg. - DMC enterprise profit is - 166 yuan/ton. - Regenerated aluminum enterprise profit is - 410 yuan/ton [2]. 3.1.5 Inventory - Industrial silicon: Social inventory (including warehouse receipt inventory) is 54.7 tons, enterprise inventory (sample enterprises) is 17.0 tons, industry inventory (social inventory + enterprise inventory) is 71.7 tons, and futures warehouse receipt inventory is 25.4 tons. - Polysilicon: Manufacturer inventory is 23.3 tons [2]. 3.1.6 Raw Material Cost - Silicon ore: Xinjiang is 340 yuan/ton, Yunnan is 320 yuan/ton. - Washed coking coal: Xinjiang is 1250 yuan/ton, Ningxia is 925 yuan/ton. - Petroleum coke: Maoming coke is 1400 yuan/ton, Yangzi coke is 1740 yuan/ton. - Electrodes: Graphite electrode is 12200 yuan/ton, carbon electrode is 7200 yuan/ton [2]. 3.2 Macro and Industry News - On August 12, 2025, the environmental impact report (draft for comments) of the 500 - ton silicon - based electronic special gas project of Haidong Hongshi Semiconductor Co., Ltd. was publicly announced. The project is located in the Zero - Carbon Industrial Park in Hehuang New Area, Haidong City, Qinghai Province. It relies on the 140,000 - ton polysilicon production system of the first - phase project of Haidong Hongshi Semiconductor, adding equipment for further purification of by - products in the polysilicon production process and building a new filling station [4].