纯碱玻璃周报：供需偏弱，玻碱反弹承压-20250622

1. Report Industry Investment Rating No relevant content provided. 2. Core Views of the Report - Soda Ash: Last week, the operating rate and production of soda ash enterprises continued to rise, and the market production - sales rate increased month - on - month. However, the inventory continued to accumulate. The current supply - demand pattern of soda ash is weak, with no improvement in downstream demand, continuous increases in supply and inventory, and a gradual decline in spot prices. The subsequent pattern of increasing supply and weak demand will continue to suppress market confidence. Although the short - term futures price rebounded at a low level due to macro - disturbances, the rebound momentum is insufficient under the weak reality. It is recommended to trade with a short - bias on rebounds or sell out - of - the - money call options [8]. - Glass: Last week, due to one production line being shut down for water discharge and one for hot repair, and one previously ignited production line starting to produce glass, the weekly melting volume increased slightly, and the manufacturer's inventory increased slightly month - on - month. Currently, glass supply fluctuates within a narrow range at a low level. Entering the off - season of demand, downstream enterprises are cautious in purchasing, and manufacturers' inventory remains high. Enterprises reduce prices to promote sales. Short - term demand is seasonally weak, and high inventory puts pressure on the market. The futures valuation is low and maintains a low - level shock. Attention should be paid to the cold repair of production lines after losses deepen. It is recommended to refer to the 950 - 1050 range for short - term shock trading, sell on rebounds, or sell out - of - the - money call options [9]. 3. Summary by Relevant Catalogs 3.1 Week - on - Week Views and Strategies Soda Ash - Inventory: As of June 19, 2025, the total inventory of domestic soda ash manufacturers was 1.7267 million tons, including 812,600 tons of light soda ash and 914,100 tons of heavy soda ash. Enterprises' shipment slowed down, new orders were average, and some enterprises' inventory increased [8]. - Supply: As of June 19, 2025, domestic soda ash production was 754,700 tons, a month - on - month increase of 14,600 tons or 1.97%. Among them, light soda ash production was 338,700 tons, a month - on - month increase of 3,000 tons, and heavy soda ash production was 416,000 tons, a month - on - month increase of 11,600 tons. There were few maintenance enterprises, and the load of individual enterprises fluctuated, resulting in increased supply [8]. - Demand: As of June 19, 2025, the weekly shipment volume of Chinese soda ash enterprises was 714,300 tons, a month - on - month increase of 4.92%; the overall shipment rate of soda ash was 94.65%, a month - on - month increase of 2.66 percentage points. Soda ash production increased slightly. Enterprises mainly shipped pre - orders, and new order reception was average. The production - sales rate only improved slightly [8]. - View and Strategy: The current supply - demand pattern is weak. It is recommended to trade with a short - bias on rebounds or sell out - of - the - money call options [8]. Glass - Inventory: As of June 19, 2025, the total inventory of national float glass sample enterprises was 69.887 million weight boxes, a month - on - month increase of 202,000 weight boxes or 0.29%, and a year - on - year increase of 16.82%. The inventory days were 30.8 days, the same as the previous period [9]. - Supply: From June 13 - 19, 2025, the average operating rate of the float glass industry was 75.4%, a month - on - month decrease of 0.17 percentage points; the average capacity utilization rate was 77.85%, a month - on - month increase of 0.26 percentage points. The national float glass production was 1.0935 million tons, a month - on - month increase of 0.21% and a year - on - year decrease of 7.88% [9]. - Profit: From June 13 - 19, 2025, according to the production cost calculation model of Longzhong Information, the weekly average profit of float glass using natural gas as fuel was - 195.11 yuan/ton, a month - on - month decrease of 12.28 yuan/ton; the weekly average profit of float glass using coal - made gas as fuel was 83.70 yuan/ton, a month - on - month increase of 2.98 yuan/ton; the weekly average profit of float glass using petroleum coke as fuel was - 108.47 yuan/ton, a month - on - month increase of 20.00 yuan/ton [9]. - Demand: As of June 16, 2025, the average order days of national deep - processing sample enterprises was 9.83 days, a month - on - month decrease of 5.0% and a year - on - year decrease of 5.48% [9]. - View and Strategy: Currently, supply is at a low level with narrow fluctuations, and demand is seasonally weak. It is recommended to refer to the 950 - 1050 range for short - term shock trading, sell on rebounds, or sell out - of - the - money call options [9]. 3.2 Industrial Chain Structure - Soda Ash: The upstream of the soda ash industry chain includes natural alkali mines, raw salt, synthetic ammonia, raw salt, limestone, and ammonium chloride. The product is soda ash (light soda ash/heavy soda ash), and the downstream includes agricultural fertilizers, glass, and daily detergents [11]. - Flat Glass: The upstream of the flat glass industry chain includes raw materials such as quartz sand, limestone, soda ash, and additives, as well as fuels like coal - made gas (24%), natural gas (40%), and petroleum coke (16%). The mid - stream products include float glass and other types. The downstream is mainly used in real estate (75%), automobiles (18%), and electronic appliances (7%) [12]. 3.3 Futures and Spot Markets - Glass: As of June 20, 2025, the closing price of the FG main contract was 1007, and the North China basis was 133 yuan/ton. The FG9 - 1 spread closed at - 58 yuan/ton [16][20]. - Soda Ash: As of June 20, 2025, the closing price of the SA main contract was 11573, and the North China basis was 227 yuan/ton. The SA9 - 1 spread closed at 11 yuan/ton [19][20]. 3.4 Inventory - Glass: As of June 19, 2025, the total inventory of national float glass sample enterprises was 69.887 million weight boxes, a month - on - month increase of 202,000 weight boxes or 0.29%, and a year - on - year increase of 16.82%. The inventory days were 30.8 days, the same as the previous period. There were different inventory changes in different regions [23]. - Soda Ash: As of June 19, 2025, the total inventory of domestic soda ash manufacturers was 1.7267 million tons, including 812,600 tons of light soda ash and 914,100 tons of heavy soda ash. Enterprises' shipment slowed down, new orders were average, and some enterprises' inventory increased [32]. 3.5 Supply Side - Glass: From June 13 - 19, 2025, the average operating rate of the float glass industry was 75.4%, a month - on - month decrease of 0.17 percentage points; the average capacity utilization rate was 77.85%, a month - on - month increase of 0.26 percentage points. The national float glass production was 1.0935 million tons, a month - on - month increase of 0.21% and a year - on - year decrease of 7.88% [36]. - Soda Ash: As of June 19, 2025, domestic soda ash production was 754,700 tons, a month - on - month increase of 14,600 tons or 1.97%. Among them, light soda ash production was 338,700 tons, a month - on - month increase of 3,000 tons, and heavy soda ash production was 416,000 tons, a month - on - month increase of 11,600 tons. There were few maintenance enterprises, and the load of individual enterprises fluctuated, resulting in increased supply [45]. 3.6 Demand Side - Glass: As of June 16, 2025, the average order days of national deep - processing sample enterprises was 9.83 days, a month - on - month decrease of 5.0% and a year - on - year decrease of 5.48%. Since June, deep - processing orders in many places have decreased [52]. - Soda Ash: As of June 19, 2025, the weekly shipment volume of Chinese soda ash enterprises was 714,300 tons, a month - on - month increase of 4.92%; the overall shipment rate of soda ash was 94.65%, a month - on - month increase of 2.66 percentage points. Soda ash production increased slightly. Enterprises mainly shipped pre - orders, and new order reception was average. The production - sales rate only improved slightly [62].