工业硅：弱势基本面格局依旧，多晶硅：临近交割月，关注市场资金动向

Report Summary 1. Report Industry Investment Rating No information provided on the industry investment rating. 2. Core Viewpoints - The fundamental situation of industrial silicon remains weak, and for polysilicon, as it approaches the delivery month, attention should be paid to market capital trends [1]. - The trend strength of industrial silicon is -1, indicating a bearish outlook, while the trend strength of polysilicon is 0, showing a neutral stance [3]. 3. Summary by Relevant Catalogs 3.1 Fundamental Tracking - Futures Market: For industrial silicon futures Si2507, the closing price was 7,915 yuan/ton, with a decrease of 230 yuan/ton compared to T - 5 and 805 yuan/ton compared to T - 22. The trading volume was 284,155 lots, and the open interest was 178,384 lots. For polysilicon futures PS2507, the closing price was 36,090 yuan/ton, with a decrease of 760 yuan/ton compared to T - 5 [1]. - Basis: The spot premium of industrial silicon (against East China Si5530) was +765 yuan/ton, and the spot premium of polysilicon (against N - type recycled feedstock) was -695 yuan/ton [1]. - Prices: The price of East China oxygen - blown Si5530 was 8,650 yuan/ton, and the price of Yunnan Si4210 was 10,200 yuan/ton. The price of polysilicon - N - type recycled feedstock was 36,500 yuan/ton [1]. - Profits: The profit of silicon plants (Xinjiang new standard 553) was -3,482 yuan/ton, and the profit of polysilicon enterprises was -5.3 yuan/kg [1]. - Inventory: The social inventory of industrial silicon (including warehouse receipt inventory) was 58.2 tons, and the manufacturer's inventory of polysilicon was 26.0 tons [1]. - Raw Material Costs: The price of silicon ore in Xinjiang was 420 yuan/ton, and the price of graphite electrodes was 11,800 yuan/ton [1]. 3.2 Macro and Industry News On May 21st, Wacker Chemie, a German chemical company, announced the official completion of the expansion project of special silicone at its Zhangjiagang production base. The new production line will gradually be put into use in the next few months to meet the growing demand for high - quality special silicone in the Chinese market. Currently, about half of Wacker's Asian sales come from China [1][3].