1. Report Industry Investment Rating No relevant content provided. 2. Core Views of the Report - **Carbonate Lithium**: The spot price of carbonate lithium is falling, and the futures price has also dropped significantly. The "Golden September and Silver October" traditional peak season is approaching, and downstream demand has certain rigid support. The supply reduction speed has slowed down, and the inventory decline rate is slower than expected. The price is still hard to stabilize, and it is recommended to seize hedging opportunities [2][5]. - **Industrial Silicon**: The supply is steadily increasing, while the demand is weak. The inventory is difficult to decrease, and the spot price is expected to continue to operate weakly and stably. The futures price is in a confrontation between weak reality and strong policy expectations, and is expected to continue to fluctuate within a range [6]. - **Polysilicon**: There is a confrontation between strong policy expectations and weak reality, and the support of policy expectations has weakened. The demand is weak, but the spot price has not changed yet. It is recommended to wait and see, and aggressive investors can consider participating with a stop - loss [9]. 3. Summary by Relevant Catalogs 3.1 First Part: Spot Price 3.1.1 Plate Strategy Recommendation | Variety | Market Logic | Support Level | Pressure Level | Market Judgment | Reference Strategy | | --- | --- | --- | --- | --- | --- | | Carbonate Lithium 11 | Driven by news | 72,000 - 75,000 | 88,000 - 90,000 | Wide - range volatile operation | Seize selling hedging opportunities, downstream cathode material enterprises focus on low - level stockpiling or buying hedging [15] | | Industrial Silicon 11 | Confrontation between weak reality and strong policy expectations | 8,200 - 8,300 | 8,900 - 9,000 | Range - bound oscillation | Adopt a range - bound thinking, and it is more recommended to sell slightly out - of - the - money put options at low levels [15] | | Polysilicon 11 | Insufficient support from policy expectations, increasing concerns about weak demand reality | 45,000 - 46,000 | 52,000 - 53,000 | High - level oscillation | Wait and see [15] | 3.1.2 Futures and Spot Price Changes | Variety | Closing Price | Increase/Decrease Rate | Trading Volume | Open Interest | Open Interest Change | Warehouse Receipts | | --- | --- | --- | --- | --- | --- | --- | | Carbonate Lithium | 78,140 | - 0.91% | 805,585 | 347,063 | - 4,259 | 28,957 | | Industrial Silicon | 8,570 | 0.53% | 293,193 | 273,754 | - 1,804 | 50,656 | | Polysilicon | 49,665 | - 0.10% | 376,304 | 143,912 | - 10,625 | 6,880 | [16] 3.2 Second Part: Fundamental Situation 3.2.1 Carbonate Lithium Fundamental Data - **Production and Inventory Situation**: This week, the production of carbonate lithium was 19,030 tons, a decrease of 108 tons from the previous week. The total sample inventory was 141,136 tons, a decrease of 407 tons. The supply reduction speed has slowed down, and the inventory decline rate is slower than expected [2]. - **Downstream Situation**: The "Golden September and Silver October" traditional peak season is approaching, and downstream demand has certain rigid support. After the rapid increase in downstream inventory, the probability of further large - scale replenishment may decrease [2]. 3.2.2 Industrial Silicon Fundamental Data - **Production and Inventory Situation**: The supply is steadily increasing, and the industry operating rate has recovered to over 60%. The inventory is difficult to decrease, and the exchange warehouse receipts increased last week [6]. - **Downstream Situation**: Downstream demand is weak. The demand for polysilicon is mainly for rigid procurement, the demand for organic silicon is weak, and the aluminum alloy is in the traditional off - season. Although the export of industrial silicon is increasing, it has limited impact on the overall demand [6]. 3.2.3 Polysilicon Fundamental Data - **Production and Inventory Situation**: No specific production and inventory data are provided, but it is mentioned that the battery cell inventory has increased for two consecutive weeks [9]. - **Downstream Situation**: The new photovoltaic installed capacity has declined significantly since June, and domestic installation projects have been postponed. The overseas stocking window for battery cells is coming to an end, and the demand is weak [9].