1. Report Industry Investment Rating - No information provided in the content. 2. Core Viewpoints of the Report - After the holiday, polysilicon showed a weak and volatile trend. The main contract 2506 closed at 36,410 yuan/ton, with an intraday decline of 2.39%, and the open interest decreased by 510 lots to 53,756 lots. The SMM N-type polysilicon price was 40,500 yuan/ton, and the spot premium over the main contract widened to 4,090 yuan/ton. Industrial silicon also showed a weak and volatile trend. The main contract 2506 closed at 8,325 yuan/ton, with an intraday decline of 2.57%, and the open interest increased by 12,934 lots to 17,950 lots. The Baichuan industrial silicon spot reference price was 9,637 yuan/ton, down 128 yuan/ton from the last trading day before the holiday. The price of the lowest deliverable 553 grade dropped to 8,650 yuan/ton, and the spot premium widened to 280 yuan/ton. Before the holiday, traders cleared their inventories and pressured prices, and the downstream's willingness to stock up was lower than in previous years. After the holiday, the downstream demand still faced the pressure of a slowdown. Industrial silicon was affected by the negative feedback from the downstream and was difficult to get out of the bottom-finding rhythm. The adjustment flexibility of polysilicon production was relatively high, and the space for a sharp decline after the holiday was relatively limited compared with industrial silicon, mainly showing a narrow correction. Opportunities for the convergence of the spread between near and far months could be considered. Attention should be paid to whether large-scale infrastructure or mandatory photovoltaic installation assessment policies will be newly introduced after the decline of distributed photovoltaics, which may trigger an oversold rebound [2]. 3. Summary by Relevant Catalogs 3.1 Daily Data Monitoring - **Industrial Silicon**: The futures settlement price of the main and near-month contracts decreased by 175 yuan/ton to 8,370 yuan/ton. The prices of various grades of industrial silicon in different regions generally declined, with a decrease of 50 - 100 yuan/ton. The current lowest deliverable price dropped by 50 yuan/ton to 8,650 yuan/ton, and the spot premium widened by 125 yuan to 280 yuan/ton. The industrial silicon warehouse receipts remained unchanged at 69,236, the Guangzhou Futures Exchange (GFE) inventory decreased by 1,330 tons to 346,180 tons, the factory inventory decreased by 5,900 tons to 244,100 tons, and the social inventory decreased by 7,900 tons to 409,100 tons [4]. - **Polysilicon**: The futures settlement price of the main and near-month contracts decreased by 835 yuan/ton to 36,410 yuan/ton. The polysilicon spot prices remained unchanged. The current lowest deliverable price remained at 40,500 yuan/ton, and the spot premium widened by 835 yuan to 4,090 yuan/ton. The polysilicon warehouse receipts remained unchanged at 30, the GFE inventory increased by 60,000 tons to 90,000 tons, the factory inventory increased by 0.8 million tons to 28.37 million tons, and the social inventory increased by 0.8 million tons to 28.4 million tons [4]. - **Organic Silicon**: The DMC price in the East China market remained unchanged at 12,000 yuan/ton, the prices of raw rubber and 107 glue remained unchanged, and the price of dimethyl silicone oil increased by 2,200 yuan/ton to 15,000 yuan/ton [4]. - **Downstream Products**: The prices of silicon wafers and battery cells remained unchanged [4]. 3.2 Chart Analysis - **Industrial Silicon and Cost - End Prices**: Charts show the prices of different grades of industrial silicon, grade spreads, regional spreads, electricity prices, silica prices, and refined coal prices [6][13]. - **Downstream Product Prices**: Charts display the prices of DMC, organic silicon products, polysilicon, silicon wafers, battery cells, and components [16][18][20]. - **Inventory**: Charts present the industrial silicon futures inventory, factory inventory, weekly industry inventory, weekly inventory changes, DMC weekly inventory, and polysilicon weekly inventory [23][26]. - **Cost - Profit**: Charts show the average cost and profit levels in major production areas, weekly cost - profit of industrial silicon, aluminum alloy processing industry profit, DMC cost - profit, and polysilicon cost - profit [29][31][32].