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1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - For soda ash, the fundamentals are not optimistic. Supply pressure and high inventory are the key factors suppressing prices, and there are no signs of a turnaround in the short term. The trading strategy is to short on rallies unilaterally and consider rolling to sell out - of - the - money call options on near - term contracts [3][67]. - For glass, the fundamentals are neutral. Policy and news have a significant impact on the FG2601 contract. The glass futures price in the fourth quarter may show a volatile trend, with the price center likely to be higher in the first half and lower in the second half. The trading strategy is to focus on band trading and consider selling deep out - of - the - money call options [4][68]. 3. Summary by Relevant Catalogs 3.1 Market Review Soda Ash - In Q1 2025, the soda ash price fluctuated, with a decline in the second half of December due to factory maintenance and a rebound later as enterprises resumed production. In February, the price first dropped and then rebounded. In March, the price fell despite improved fundamentals [6]. - In Q2 2025, the soda ash price showed a smooth downward trend due to increased supply and slower demand growth [7]. - In Q3 2025, the price first rose and then fell. In July, the price increased with the rise of coking coal futures. In August, supply reached a historical high and demand was weak, leading to a price drop. In September, the price fluctuated, and it was relatively firm before the National Day due to downstream restocking [7]. Glass - In Q1 2025, the glass futures price trended downward. In January, the futures were weak but the spot price rebounded. In February, the price continued to decline due to high inventory and slow recovery of processing enterprises. In March, the price first dropped to a low and then rebounded, but it couldn't be sustained [8][10]. - In Q2 2025, the glass futures price showed a smooth downward trend due to poor macro - environment and low real - estate demand. In June, the price rebounded due to the rise of coal prices [10]. - In Q3 2025, the price first rose under the influence of the "anti - involution" policy and then fell back. In September, the price rebounded with the arrival of the consumption peak season [10]. 3.2 Soda Ash Fundamental Analysis Price and Spread - In Q3 2025, the spot price of soda ash in various regions first rose and then fell, and the futures price also showed a similar trend. The spot price decline was greater than that of the futures, and the basis decreased by 150 yuan/ton compared to the end of June [13]. Profit, Production, and Capacity Utilization - By September 25, 2025, the ammonia - soda production profit was - 37.2 yuan/ton, and the combined - soda production profit was - 77.5 yuan/ton, both showing a decline compared to the end of June. However, the capacity utilization rate remained high, above 80% in Q3 and above 85% in September. The weekly production was mostly above 700,000 tons, and the monthly production in September increased compared to August [17]. Inventory - As of September 25, 2025, the soda ash enterprise inventory was 1.9515 million tons, a decrease of 115,400 tons compared to the end of June. The light - soda inventory was 729,100 tons, a decrease of 76,100 tons, and the heavy - soda inventory was 922,400 tons, a decrease of 39,300 tons. The heavy - soda inventory was digested faster after August due to the rebound of the photovoltaic glass market and the ignition of some float glass production lines [22]. Future Capacity Expansion Plan - In the first half of 2025, new capacities of Lianyungang Alkali Plant and Hubei Shuanghuan were put into production. In the second half, there are still 3.5 million tons of capacity to be put into operation, including the second - phase project of Yuanxing Energy, which was successfully ignited on September 19 and entered the commissioning stage [27]. Downstream Demand - Float Glass: In Q3 2025, the spot price of float glass in most regions rose, but it decreased in Guangdong. The futures price also rose and then fell. The production profit of glass enterprises improved. The daily melting volume increased to 160,200 tons, and the enterprise inventory decreased. However, the deep - processing enterprise operating rate declined, and the terminal real - estate demand remained weak [29][32][33]. - Photovoltaic Glass: In Q3 2025, the photovoltaic glass price rebounded, and the daily melting volume reached 88,800 tons after a rebound. The enterprise inventory days decreased to 14.16 days. The domestic photovoltaic component installation volume and export volume showed different trends. The installation volume declined after May, and the export volume increased in August but is likely to decline after September [48][54]. - Light - Soda Demand: The demand for light soda is relatively stable. The PPI of glass products continued to decline, the production of synthetic detergents decreased, and the production of lithium carbonate increased steadily [60]. 3.3 Outlook and Trading Recommendations - For soda ash, the supply surplus problem may worsen in the fourth quarter. The trading strategy is to short on rallies unilaterally and consider rolling to sell out - of - the - money call options on near - term contracts [67]. - For glass, the daily melting volume may remain stable with possible short - term fluctuations. The trading strategy is to focus on band trading and consider selling deep out - of - the - money call options [68].