纯碱月报：市场情绪逐渐降温，价格回归基本面主导逻辑，但预期尚在-20250905

1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints - The prices of soda ash and float glass are currently at historically low levels, with high risks associated with short - selling. Given strong macro - expectations and the "anti - involution" backdrop, the price centers of soda ash and glass are expected to gradually rise. It is not advisable to chase short positions at low prices. Instead, one can wait for long - entry opportunities when prices break upwards [14][84]. - For soda ash, although production and inventory remain high and demand recovery is slow, increasing exports may support prices. For glass, the improvement in real - estate terminal demand is slow, and high production and inventory levels continue to exert pressure on prices. Attention should be paid to the peak - season data during the "Golden September and Silver October" period [14][84]. 3. Summary by Directory 3.1 Soda Ash Report 3.1.1 Monthly Assessment and Strategy Recommendation - Price: As of September 2, 2025, the spot market price of soda ash was 1167 yuan/ton, down 38 yuan/ton from the previous week and 79 yuan/ton from the beginning of the previous month. The futures price of the main contract (SA509) closed at 1267 yuan/ton, down 44 yuan/ton from the previous week but up 11 yuan/ton from the beginning of the previous month. The basis was - 100 yuan/ton, up 6 yuan/ton from the previous week, and the basis rate was - 7.89%, at a relatively low - neutral level in historical statistics [13][19]. - Cost - profit: As of August 29, 2025, the production cost of the ammonia - soda process was 1268 yuan/ton, with a profit of - 0.1 yuan/ton; the production cost of the combined - soda process was 1651 yuan/ton, with a profit of - 20 yuan/ton. As the proportion of the natural - soda process increases, the overall cost support for soda ash may be limited [13][30]. - Supply: As of August 29, 2025, the weekly production of soda ash was 71.91 tons, a decrease of 5.23 tons from the previous week. The monthly production in August was 331.87 tons, an increase of 15.45 tons from the previous month. Production is expected to remain high in the short term, pressuring prices [13][44]. - Demand: In August, the start - up rate and production of float glass increased, driving short - term soda ash demand. However, the increase in float - glass inventory at the end of August may have a negative feedback effect on soda ash demand. The operating daily capacity of photovoltaic glass increased, and the inventory pressure was low. If the start - up rate and capacity increase in the future, it will drive up soda ash demand [13][58]. - Inventory: As of August 29, 2025, the in - factory inventory of soda ash was 186.75 tons, an increase of 7.17 tons from the beginning of the month. The inventory is expected to remain high in the short term, pressuring prices [13][69]. - Import - export: In July 2025, soda ash imports were 0.32 tons, exports were 16.12 tons, and net exports were 15.80 tons, an increase of 0.25 tons from the previous month. With the current low prices, export volumes are expected to continue to rise, supporting prices [13][64]. 3.1.2 Futures and Spot Market - Soda Ash Basis: As of September 2, 2025, the basis was - 100 yuan/ton, up 6 yuan/ton from the previous week, and the basis rate was - 7.89%, at a relatively low - neutral level in historical statistics [19]. - Difference between Dense and Light Soda Ash: As of September 2, 2025, the price difference between dense and light soda ash in North China was 100 yuan/ton, and in East China was 120 yuan/ton, showing little change and remaining within a reasonable range [22]. - Soda Ash Inter - monthly Spread: As of September 2, 2025, the spread between the 1 - 5 contracts of soda ash futures was - 80 yuan/ton. Although the short - term fundamentals are difficult to improve rapidly, there are expectations of price increases in the future [25]. 3.1.3 Profit and Cost - Soda Ash Cost - profit: As of August 29, 2025, the production cost of the ammonia - soda process was 1268 yuan/ton, with a profit of - 0.1 yuan/ton; the production cost of the combined - soda process was 1651 yuan/ton, with a profit of - 20 yuan/ton. As the proportion of the natural - soda process increases, the overall cost support for soda ash may be limited [30][33]. - Raw Material Costs: As of September 2, 2025, the price of raw salt in Northwest China remained unchanged from the previous week, and the price of动力煤 changed little, with a slight decline in some areas. The price of synthetic ammonia changed little from the previous week and remained at a relatively low level year - on - year. These factors have little impact on soda ash prices [36][39]. 3.1.4 Supply and Demand - Total Production: As of August 29, 2025, the weekly production of soda ash was 71.91 tons, a decrease of 5.23 tons from the previous week. The monthly production in August was 331.87 tons, an increase of 15.45 tons from the previous month. Production is expected to remain high in the short term, pressuring prices [44]. - Production of Dense and Light Soda Ash: As of August 29, 2025, the production of dense soda ash was 38.32 tons, a decrease of 4.2 tons from the previous week, and the production of light soda ash was 33.59 tons, a decrease of 1.03 tons from the previous week. With fewer maintenance plans in September, production is expected to remain high [47]. - Soda Ash Start - up Rate: The start - up rate of soda ash in August first increased and then decreased. With fewer planned maintenance enterprises in September, the start - up rate is expected to remain at the current level [50]. - Soda Ash Demand: The increase in float - glass production drove short - term soda ash demand, but the increase in float - glass inventory may have a negative impact. The operating daily capacity of photovoltaic glass increased, and if the start - up rate and capacity increase in the future, it will drive up soda ash demand [58][61]. - Soda Ash Import - export: In July 2025, soda ash imports were 0.32 tons, exports were 16.12 tons, and net exports were 15.80 tons, an increase of 0.25 tons from the previous month. With the current low prices, export volumes are expected to continue to rise, supporting prices [64]. 3.1.5 Inventory - As of August 29, 2025, the in - factory inventory of soda ash was 186.75 tons, an increase of 7.17 tons from the beginning of the month. The inventory is expected to remain high in the short term, pressuring prices [69]. 3.2 Glass Report 3.2.1 Monthly Assessment and Strategy Recommendation - Price: As of September 2, 2025, the spot market price of float glass was 1130 yuan/ton, down 8 yuan/ton from the previous week and 115 yuan/ton from the beginning of the previous month. The futures price of the main contract (SA509) closed at 1134 yuan/ton, down 38 yuan/ton from the previous week but up 33 yuan/ton from the beginning of the previous month. The basis was - 4 yuan/ton, up 31 yuan/ton from the previous week, and the basis rate was + 2.73%, at a neutral level in historical statistics [83][89]. - Cost - profit: As of August 29, 2025, the production costs of float glass using coal, petroleum coke, and natural gas as fuels were 995 yuan/ton, 1039 yuan/ton, and 1398 yuan/ton respectively, and the profits were 109.46 yuan/ton, 25.66 yuan/ton, and - 188.41 yuan/ton respectively, providing some support for glass - futures prices [83][97]. - Supply: As of August 29, 2025, the weekly production of float glass was 111.70 tons, an increase of 0.18 tons from the beginning of the month. The start - up rate was 75.49%, an increase of 0.49 percentage points from the beginning of the month. With some production lines planning to start up next month, production is expected to remain at a relatively high level in the short term [83][108]. - Demand: As of August 29, 2025, the start - up rate of Low - e glass was 48.10%, an increase of 4.8 percentage points from the beginning of the month. As of September 1, 2025, the downstream deep - processing orders of float glass were 10.4 days, an increase of 0.85 days from the beginning of the previous month, indicating a slight recovery in demand. However, the improvement in real - estate terminal demand was slow, dragging down glass prices in the short term. Attention should be paid to the peak - season data during the "Golden September and Silver October" period [83][113]. - Inventory: As of August 29, 2025, the in - factory inventory of float glass in China was 6256.6 million weight - cases, an increase of 306.7 million weight - cases from the beginning of the month. The inventory in the Shahe area also increased. With high production levels, inventory is expected to continue to pressure prices [83][126]. 3.2.2 Futures and Spot Market - Glass Basis: As of September 2, 2025, the basis was - 4 yuan/ton, up 31 yuan/ton from the previous week, and the basis rate was + 2.73%, at a neutral level in historical statistics [89]. - Glass Inter - monthly Spread: As of September 2, 2025, the spread between the 1 - 5 contracts of glass futures was - 99 yuan/ton. Although the short - term fundamentals are difficult to improve rapidly, there are expectations of price increases in the future [92]. 3.2.3 Profit and Cost - As of August 29, 2025, the production costs of float glass using coal, petroleum coke, and natural gas as fuels were 995 yuan/ton, 1039 yuan/ton, and 1398 yuan/ton respectively, and the profits were 109.46 yuan/ton, 25.66 yuan/ton, and - 188.41 yuan/ton respectively, providing some support for glass - futures prices [97]. 3.2.4 Supply and Demand - Glass Production and Start - up Rate: As of August 29, 2025, the weekly production of float glass was 111.70 tons, an increase of 0.18 tons from the beginning of the month. The start - up rate was 75.49%, an increase of 0.49 percentage points from the beginning of the month. With some production lines planning to start up next month, production is expected to remain at a relatively high level in the short term [108]. - Glass Demand: The downstream deep - processing orders of float glass increased slightly, indicating a slight recovery in demand. However, the improvement in real - estate terminal demand was slow, dragging down glass prices in the short term. The real - estate transaction volume improved slightly but remained relatively low compared to historical levels [113][119]. 3.2.5 Inventory - As of August 29, 2025, the in - factory inventory of float glass in China was 6256.6 million weight - cases, an increase of 306.7 million weight - cases from the beginning of the month. The inventory in the Shahe area also increased. With high production levels, inventory is expected to continue to pressure prices [126].