工业硅&多晶硅周报：工业硅供应压力仍存，多晶硅等待枯水期供需改善情况-20251025

1. Report Industry Investment Rating - Not provided in the content 2. Core Viewpoints of the Report - For industrial silicon, the supply pressure persists, with weekly production continuing to rise and the start - up rate in the northwest region increasing. The demand support is weakening as polysilicon production is expected to decline in the last two months and the DMC start - up rate of organic silicon has decreased. The price is expected to move sideways in the short term, constrained by the current situation and easily influenced by the overall commodity environment [16]. - For polysilicon, as November approaches, the supply pressure may ease marginally after the production increase in October. The downstream start - up rate is expected to be stable. The price shows a wide - range oscillation pattern, affected by policy expectations [18]. 3. Summary According to the Directory 3.1 Week - to - Week Assessment and Strategy Recommendation Industrial Silicon - Demand: The weekly production of polysilicon is 31,100 tons, showing a slight decline week - on - week [14]. - Price: As of October 24, 2025, the spot price of 553 (non - oxygenated) industrial silicon in East China is 9,300 yuan/ton, unchanged week - on - week; the spot price of 421 industrial silicon is 9,650 yuan/ton, with the discounted futures price at 8,850 yuan/ton, down 50 yuan/ton week - on - week. The futures main contract (SI2601) closed at 8,920 yuan/ton, up 120 yuan/ton week - on - week [15]. - Cost: The average cost in Xinjiang is 8,473.08 yuan/ton, 9,387.50 yuan/ton in Yunnan, 9,104.76 yuan/ton in Sichuan, and 9,000 yuan/ton in Inner Mongolia [15]. - Supply: The weekly production of industrial silicon is 98,500 tons, an increase of 10,000 tons week - on - week [15]. - Inventory: The industrial silicon inventory is 686,700 tons, down 9,300 tons week - on - week, remaining at a high level [15]. Polysilicon - Price: As of October 24, 2025, the average price of N - type re - feeding polysilicon is 52.98 yuan/kg, up 0.18 yuan/kg week - on - week; the average price of N - type dense polysilicon is 51.5 yuan/kg, up 0.25 yuan/kg week - on - week. The futures main contract (PS2601) closed at 52,305 yuan/ton, down 2,545 yuan/ton week - on - week [17]. - Cost: The production cost of polysilicon is 41,443.00 yuan/ton, with a gross profit of 9,157.00 yuan/ton [17]. - Supply: The weekly production of polysilicon is 31,100 tons, showing a slight decline week - on - week, close to the same period in 2024 [17]. - Downstream: The weekly production of silicon wafers is 14.73 GW, rising slightly week - on - week; the production of solar cells in September is 60.97 GW, up 2.7 GW month - on - month; the production of modules in September is 49.9 GW, up 0.7 GW month - on - month [17]. - Inventory: The factory inventory of polysilicon is 273,000 tons according to Baichuan Yingfu, and 258,000 tons according to SMM [17]. 3.2 Futures and Spot Markets Industrial Silicon - As of October 24, 2025, the spot price of 553 (non - oxygenated) industrial silicon in East China is 9,300 yuan/ton, unchanged week - on - week; the spot price of 421 industrial silicon is 9,650 yuan/ton, with the discounted futures price at 8,850 yuan/ton, down 50 yuan/ton week - on - week. The futures main contract (SI2601) closed at 8,920 yuan/ton, up 120 yuan/ton week - on - week [23]. Polysilicon - As of October 24, 2025, the average price of N - type re - feeding polysilicon is 52.98 yuan/kg, up 0.18 yuan/kg week - on - week; the average price of N - type dense polysilicon is 51.5 yuan/kg, up 0.25 yuan/kg week - on - week. The futures main contract (PS2601) closed at 52,305 yuan/ton, down 2,545 yuan/ton week - on - week [26]. 3.3 Industrial Silicon Total Production - As of October 24, 2025, the weekly production of industrial silicon is 98,500 tons, an increase of 10,000 tons week - on - week. In September 2025, the production is 384,000 tons, up 13,600 tons month - on - month, and the cumulative production from January to September decreased by 596,500 tons or 16.89% year - on - year [31]. Production in Major Producing Areas - Not elaborated in detail in terms of specific changes in the text, but data charts for major producing areas such as Sichuan, Yunnan, Xinjiang, Inner Mongolia, and Gansu are provided [33][35][38] Production Cost - As of October 24, 2025, the electricity price in major producing areas remained unchanged week - on - week, and the silica price was stable. The silicon coal price in major producing areas was stable week - on - week. The average cost in Xinjiang is 8,473.08 yuan/ton, 9,387.50 yuan/ton in Yunnan, 9,104.76 yuan/ton in Sichuan, and 9,000 yuan/ton in Inner Mongolia [44][47]. Visible Inventory - As of October 24, 2025, the industrial silicon inventory is 686,700 tons, down 9,300 tons week - on - week, remaining at a high level. Factory inventory is 262,100 tons, down 400 tons week - on - week; market inventory is 183,000 tons, unchanged week - on - week; registered warehouse receipt inventory is 241,600 tons, down 8,900 tons week - on - week [50]. 3.4 Polysilicon Production - As of October 24, 2025, the weekly production of polysilicon is 31,100 tons, showing a slight decline week - on - week, close to the same period in 2024. The production in September is 130,000 tons, down 17,000 tons month - on - month; the cumulative production from January to September is 941,100 tons, a decrease of 33.30% year - on - year [55]. Start - up Rate and Scheduled Production - The start - up rate of polysilicon in September is 49.43%, up 3.65 percentage points month - on - month. SMM expects the production in October to be 134,500 tons, increasing month - on - month [58]. Inventory - As of October 24, 2025, the factory inventory of polysilicon is 273,000 tons according to Baichuan Yingfu, and 258,000 tons according to SMM [61]. Cost and Profit - As of October 24, 2025, the production cost of polysilicon is 41,443.00 yuan/ton, and the gross profit is 9,157.00 yuan/ton, with relatively good profit [64]. Downstream (Silicon Wafers, Solar Cells, Modules) - Silicon wafers: The weekly production is 14.73 GW, rising slightly week - on - week; the production in September is 59.05 GW, up 3.01 GW month - on - month; the production from January to September is 488.17 GW, a decrease of 5.58% year - on - year. The inventory is 18.47 GW, increasing slightly week - on - week; the predicted production in October is 55.68 GW, decreasing month - on - month [67][70]. - Solar cells: The production in September is 60.97 GW, up 2.7 GW month - on - month; the start - up rate in September is 59.56%, up 2.67 percentage points month - on - month. The inventory is 7.1 GW, rising week - on - week; the predicted production in October is 59.6 GW, decreasing slightly month - on - month [75][78]. - Modules: The production in September is 49.9 GW, up 0.7 GW month - on - month; the start - up rate in September is 48.7%, down 0.39 percentage points month - on - month. The inventory is 33.5 GW, decreasing slightly week - on - week; the predicted production in October is 48.31 GW, lower than that in September [83][86]. 3.5 Organic Silicon Production - As of October 24, 2025, the DMC production is 45,000 tons, down 1,300 tons week - on - week. The production in September is 208,800 tons, down 10,800 tons month - on - month. The cumulative production from January to September is 1,861,800 tons, an increase of 16.89% year - on - year [93]. Price and Profit - As of October 24, 2025, the average price of organic silicon is 11,100 yuan/ton, down 200 yuan/ton week - on - week. The DMC gross profit is - 1,440.63 yuan/ton [96]. Inventory - As of October 24, 2025, the DMC inventory is 43,000 tons, up 1,200 tons week - on - week [99]. 3.6 Silicon - Aluminum Alloy and Exports Aluminum Alloy - As of October 24, 2025, the price of primary aluminum alloy A356 is 21,690 yuan/ton, up 270 yuan/ton week - on - week; the price of recycled aluminum alloy ADC12 is 21,230 yuan/ton, up 160 yuan/ton week - on - week. The cumulative production from January to September is 1,411,600 tons, an increase of 254,400 tons or 21.98% year - on - year. The start - up rate of primary aluminum alloy is 59%, and that of recycled aluminum alloy is 58.6% [104][107]. Exports - The cumulative net export of industrial silicon from January to September is 553,000 tons, an increase of 27,700 tons or 5.27% year - on - year [110].