1. Report Industry Investment Rating No relevant information provided. 2. Core Viewpoints of the Report - For glass, the domestic float glass market prices fluctuated this week, with varying trading volumes across regions. Float glass manufacturers continued to reduce inventory, but the inventory remained high. Two production lines were shut down this week, but there are expectations of new production line ignition next month. With average demand and high inventory, industry players remain cautious. The short - term inventory is at a high level in recent years, and the futures price fluctuations increase. It is advisable to seek better entry opportunities for buy - hedging positions. The support for the 05 contract is between 1000 - 1020, and the resistance is between 1250 - 1300 [3][4]. - For soda ash, the domestic soda ash market is weak, and the trading atmosphere is dull. Some plants are scheduled for maintenance in the coming months. The supply has hit a new high, and the inventory pressure remains. The rising fossil energy prices may increase production and transportation costs, while the rising fertilizer prices contribute positively to the profits of joint - alkali enterprises. The supply may be affected by maintenance in the short term, but it is difficult to clear the inventory. Soda ash is under supply pressure and policy support, and it is difficult to have a unilateral trend in the short term. It is recommended that both supply and demand sides of soda ash seize hedging opportunities according to their production and sales risk exposures. The support for the 05 contract is between 1100 - 1150, and the resistance is between 1300 - 1350 [5]. 3. Summary by Directory 3.1 Glass and Soda Ash Industry Chain Spot Prices - The report presents multiple figures related to glass and soda ash spot prices, including glass spot prices of different specifications from various regions (such as 5mm and 6mm glass from different manufacturers) and soda ash spot prices (including general, heavy, and light soda ash prices). The data sources are mainly from institutions like Zhuochuang Information, Longzhong Information, and Flush [8][10][11]. 3.2 Glass and Soda Ash Industry Chain Supply, Demand, and Inventory - **Glass**: The total number of float glass production lines in the country is 264, with 204 in operation, and the daily melting capacity is 146,585 tons, a decrease of 1200 tons from last week. The industry capacity utilization rate is 79.42%. Two production lines were shut down this week. The market trading enthusiasm was high at the beginning of the week and then declined. Downstream processors' new orders were average, and they mainly maintained a rigid - demand procurement rhythm. The inventory is at a high level, and the market trading atmosphere has gradually declined [3]. - **Soda Ash**: This week, the soda ash production was 818,100 tons, an increase of 89,000 tons from the previous week, hitting a new weekly production high. As of March 19, 2026, the total inventory of domestic soda ash manufacturers was 1.8538 million tons, a decrease of 77,900 tons or 4.03% from last Thursday. Among them, the light soda ash inventory was 963,100 tons, a decrease of 50,500 tons, and the heavy soda ash inventory was 890,700 tons, a decrease of 27,400 tons [5]. 3.3 Glass and Soda Ash Industry Chain Profit - The report shows figures related to the production gross profit of float glass using different fuels (coal, petroleum coke, and natural gas) on a weekly basis and the weekly enterprise profit of soda ash, with data sources mainly from Longzhong Information [8][28][31][34].