1. Report Industry Investment Rating No relevant content provided. 2. Core Views - **Caustic Soda**: This week, the caustic soda futures market continued to weaken. After the previous downstream concentrated stockpiling led to a surge in the futures market, the market faced downward pressure after the bullish trading. Next week, there are maintenance plans in the Northwest and Northeast regions, which are expected to cause a decline in the operating rate. The demand from the main alumina enterprises is good, but the alumina market remains in an oversupply situation, and its price has been showing a downward trend recently. In the short - term, it may continue to operate weakly. Most alumina plants have sufficient raw material inventory days. The non - alumina end has entered the peak season with improved demand, but it has limited support for the caustic soda price. Overall, there is a significant inventory build - up in the Shandong region, but the main buyers have a good willingness to purchase, so the spot price may stabilize. Therefore, the decline space of the futures price may be limited. Attention should be paid to the purchasing rhythm of alumina plants and device fluctuations [2]. - **PVC**: This week, the PVC futures market showed signs of stabilizing and stopping the decline, with the main 01 contract fluctuating within a narrow range. Next week, there are many maintenance enterprises, and the output is expected to decline. On the demand side, the operating rate of downstream products has increased slightly, and some enterprises are preparing inventory for the National Day. Therefore, the overall supply - demand pattern shows a marginal improvement trend. On the cost side, the tight supply of raw material calcium carbide has gradually eased, and the price has a narrow downward trend. The ethylene price is weakly stable, and the cost side maintains bottom - support. It is expected that PVC will stop falling and stabilize in September. Attention should be paid to the performance of downstream demand [2]. 3. Summary by Related Catalogs 3.1 Caustic Soda - **Caustic Soda Period and Spot**: The caustic soda futures price has fluctuated due to various factors such as macro - environment changes, supply - demand expectations, and cost fluctuations. For example, the market worried about the weakening of the marginal supply after the return of supply, and the downstream demand was stable. The far - month supply - demand expectations were poor, and the futures price was looking for a bottom due to factors such as cost reduction, new caustic soda production capacity release, and insufficient medium - term alumina support [5]. - **Caustic Soda Profit**: The profit of the caustic soda industry is affected by factors such as raw material prices (including well - mine salt, liquid chlorine, etc.) and electricity prices. The sharp decline in the Shandong liquid chlorine price has impacted the enterprise profit, and the industry operating rate has further declined while the demand remains stable [5]. - **Caustic Soda Supply**: As of this Thursday, the weekly weighted average operating load rate of sample enterprises in major regions across the country was 86.73%, a slight increase of 0.04 percentage points from last week. The Shandong operating rate was 87.35%, an increase of 0.49 percentage points. In terms of inventory, compared with September 3rd, the inventory of 32% liquid caustic soda in the expanded sample enterprises in East China increased by 1.09%, and the inventory in Shandong increased by 16.96% [24]. - **Caustic Soda Device Dynamics**: There are many caustic soda device maintenance situations in different regions. For example, Inner Mongolia Zhonggu Mining in the Northwest has been shut down since July 22, 2023, and is expected to resume on October 15; Inner Mongolia Yili in the Northwest has been shut down since May 5, 2024, and the restart time is undetermined [25]. - **Alumina Impact on Caustic Soda**: From the end of 2024 to 2025, the planned alumina production capacity to be put into operation is 12.3 million tons (including 2 million tons of replacement), and the estimated annual production capacity growth rate is around 10%. It is estimated that the annual alumina output in 2025 will be more than 88 million tons, with a production growth rate of around 6%. The new alumina projects are expected to increase the demand for caustic soda by about 800,000 tons per year, with a relatively concentrated demand increase of 150,000 tons from April to June [29]. - **Caustic Soda Export**: In July, the caustic soda export volume reached a high level, but the estimated export profit has weakened compared with the previous period [54]. 3.2 Polyvinyl Chloride (PVC) - **PVC Period and Spot**: The PVC futures price has fluctuated due to factors such as supply - demand imbalance, macro - environment, and cost. For example, the lack of positive drivers in supply - demand, combined with a poor commodity atmosphere, has led to a continuous decline in the futures price [61]. - **PVC Profit**: The profit of the PVC industry has weakened month - on - month. The profit of the calcium carbide method and ethylene method in East China has been affected by factors such as raw material prices and market supply - demand [67]. - **PVC Supply**: This week, the operating load rate of the domestic PVC powder industry has increased, and the maintenance loss this week has decreased month - on - month. The overall operating load rate of PVC powder this week was 79.39%, a 3.21 - percentage - point increase month - on - month; among them, the operating load rate of calcium carbide - based PVC powder was 80.29%, a 2.64 - percentage - point increase month - on - month; the operating load rate of ethylene - based PVC powder was 77.2%, a 4.61 - percentage - point increase month - on - month [83]. - **PVC Device Dynamics**: There are many PVC device maintenance and shutdown situations in different regions. For example, Julong Chemical in North China has shut down for maintenance since September 20, 2024, and the restart time is undetermined; Ningbo Zhenyang in East China is planned to start operation around September 20 after a temporary shutdown on August 15 [85]. - **PVC Downstream Demand**: The two main downstream industries of PVC, profiles and pipes, are facing great pressure. In addition to demand issues, they also face industry competition, so the industry's contribution is difficult to improve. The real - estate industry still has a negative impact on PVC demand. According to Xuande sample data, the downstream orders are significantly lower than the same period in the past five years, and the raw material and finished - product inventories are at high levels, so the PVC downstream is expected to have no positive drivers [93]. - **PVC Inventory**: The PVC inventory continues to rise, and the total inventory is at the highest level in recent years compared with the same period [101]. - **PVC Outer Market and Export**: In July 2025, the PVC import volume was 24,500 tons, with an average import price of 712 US dollars per ton. The import volume increased by 2.10% month - on - month and 46.98% year - on - year, and the cumulative import volume from January to July increased by 6.03% year - on - year. In July 2025, the PVC export volume was 330,600 tons, with an average export price of 606 US dollars per ton. The export volume increased by 26.17% month - on - month and 112.82% year - on - year, and the cumulative export volume from January to July increased by 56.91% year - on - year. The domestic trade price has adjusted, and the export windows to Southeast Asia and India have opened, with relatively good weekly export transactions [119].

Report Industry Investment Rating - The investment rating for caustic soda is short - term weak [5][6] - The investment rating for PVC is low - level oscillation [9][10] Report's Core View - Caustic soda currently lacks upward drivers, with the main obstacles being exports and alumina. The market is short - term weak as the futures market is trading the pressure on spot prices in Shandong, alumina pre - production stockpiling hasn't started, and exports haven't improved [6] - PVC is in a situation of high production and high inventory, and exports may face policy disturbances with a potential slowdown in growth. The market trend is under pressure, and it will experience low - level oscillation [10] Summary by Relevant Catalogs 1. Viewpoint Overview Caustic Soda - Supply: The average capacity utilization rate of Chinese caustic soda sample enterprises with a capacity of 200,000 tons or more is 83.4%, a week - on - week decrease of 0.8%. There were production cuts and shutdowns in Northwest, Central, East, and South China, while in North China, there were both production cuts and capacity increases [5] - Demand: In the alumina sector, high production and high inventory are compressing profits, and marginal capacity supply may be affected by profits. Non - aluminum demand is rising seasonally. Export orders are poor recently, and the price difference between 50% caustic soda and 32% caustic soda is weak [5][6] - Viewpoint: Caustic soda lacks upward drivers, and the futures market is trading the price cuts of spot goods in Shandong. It is short - term weak [6] PVC - Supply: The high - production structure of PVC is difficult to change in the short term. There are still many new capacities to be put into production, especially from August to September, with an expected production of 1.1 million tons [10] - Demand: The competition in the PVC export market has intensified in 2025. Domestic demand related to the real estate industry is still weak, and enterprises have low inventory - building willingness [10] - Viewpoint: PVC will experience low - level oscillation, with the 01 contract having an upper pressure level of 5000, lower support levels of 4850 and 4700 [10] 2. Caustic Soda Price and Spread - Price: The price of the cheapest deliverable 32% caustic soda in Shandong is about 2,656 yuan/ton [15] - Spread: The 01 basis of caustic soda has strengthened, and the 11 - 1 spread has weakened. The export market still has support, but recent export orders are poor. The regional arbitrage space is limited, but attention should be paid to the high spread between flake caustic soda and liquid caustic soda. The spread between 50% caustic soda and 32% caustic soda is lower than the evaporation cost, which is negative for caustic soda [19][20][35] 3. Caustic Soda Supply - Market Structure: Production and inventory are both declining, and the structure is relatively strong. The average capacity utilization rate of Chinese caustic soda sample enterprises with a capacity of 200,000 tons or more is 83.4%, a week - on - week decrease of 0.8% [41] - Inventory: The factory inventory of fixed liquid caustic soda sample enterprises with a capacity of 200,000 tons or more in China is 356,800 tons (wet tons), a week - on - week decrease of 7.99% and a year - on - year increase of 15.48% [43] - Production Capacity: There are still many new caustic soda production capacities to be put into production in 2025, but overall production may fall short of expectations. The actual capacity expansion will be weaker than expected, with a potential capacity increase of about 2% [47][50] - Profit: Liquid chlorine is weak, leading to a decline in the overall profit of caustic soda. The cost of marginal production facilities in Shandong is calculated to be 2,277 yuan/ton [52][54] 4. Caustic Soda Demand - Alumina: Alumina production is at a high level, inventory is rising, and profits are declining. Attention should be paid to the alumina production capacity scheduled to be put into operation at the end of this year and the pre - production tank - filling demand [79][89] - Pulp Industry: The pulp industry is continuing to expand production capacity, and demand is gradually shifting to the peak season [91] - Other Industries: The operating rates of viscose staple fiber and printing and dyeing industries are rising, and short - term demand is increasing month - on - month. The operating rates of the water treatment and ternary precursor industries are stable [103][105][107] 5. PVC Price and Spread - Basis and Spread: The PVC basis is oscillating, and the 1 - 5 spread is oscillating weakly [114] 6. PVC Supply and Demand - Supply: The operating rate of PVC is increasing month - on - month and is still relatively high year - on - year. There are still seasonal maintenance plans from September to October in 2025. There are many new PVC production capacities to be put into production, with a total of 2.2 million tons expected to be put into operation in 2025 [120][122][123] - Profit: The integrated production facilities in Northwest China have decent profits. In 2025, special attention should be paid to the profit of caustic soda [125] - Inventory: PVC production enterprises and the social inventory are both increasing [129] - Demand: The real - estate terminal demand has not significantly recovered. The overall operating rate of PVC downstream industries is increasing month - on - month. PVC export expectations are weakening, and warehouse receipts are continuously increasing [134][140][146]

Report Industry Investment Ratings - Polypropylene: ★★★ [1] - Pure Benzene: ★★★ [1] - PX: ★★★ [1] - Ethylene Glycol: ★☆☆ [1] - Short Fiber: ★★★ [1] - Bottle Chip: ★★★ [1] - Methanol: ★★★ [1] - Urea: ★★★ [1] - PVC: ★★★ [1] - Caustic Soda: ★★★ [1] - Soda Ash: ★★★ [1] - Glass: ★★★ [1] Core Views - The olefin - polyolefin market has supply and demand imbalances, with price upward momentum limited [2] - The pure benzene - styrene market is affected by factors such as oil prices and downstream profitability, showing a weak performance [3] - The polyester market has different trends for each product, with price drivers mainly from raw materials and demand showing a mixed picture [4] - The coal - chemical market is expected to stabilize or continue weakly depending on the product, influenced by factors like inventory and demand [5] - The chlor - alkali market has supply - demand issues, with PVC and caustic soda showing different price trends [6] - The soda ash - glass market has high inventories and supply pressure, with prices expected to be in a certain pattern [7] Summary by Related Catalogs Olefin - Polyolefin - Propylene futures fluctuate around the 5 - day average, with limited upward momentum due to supply increase and weakening downstream acceptance [2] - Polyolefin futures decline, with polyethylene having low supply pressure but weak demand, and polypropylene facing supply pressure and slow demand recovery [2] Pure Benzene - Styrene - Pure benzene prices are weak due to factors like oil price decline, downstream poor profitability, and import pressure, but may improve in Q3 [3] - Styrene futures decline, with supply - demand support insufficient due to high inventory and weak new orders [3] Polyester - PX and PTA prices are affected by oil prices, with PTA price driven by raw materials, and downstream demand showing a positive trend but with some constraints [4] - Ethylene glycol is pressured in the far - month due to new device news, with near - month and spot being strong [4] - Short fiber is expected to be positive in the near - month, with price following cost, and bottle chip has limited processing - margin repair space [4] Coal - Chemical - Methanol prices are weak with high port inventory, but may stabilize with expected increase in MTO device operation and downstream stocking [5] - Urea prices hit new lows, with supply - demand remaining loose and the market expected to continue weakly [5] Chlor - Alkali - PVC prices may fluctuate weakly due to high supply pressure, weak demand, and high inventory [6] - Caustic soda prices may have a wide - range oscillation pattern due to factors like demand support and supply pressure [6] Soda Ash - Glass - Soda ash prices fluctuate narrowly, with high inventory and supply pressure, and it's advisable to short at high rebounds [7] - Glass prices may have a wide - range oscillation due to factors like inventory decline and potential macro - level positives [7]

1. Report Industry Investment Rating - No information provided 2. Core Views - PVC: The PVC market fluctuates mainly with macro - sentiment. The supply is abundant as domestic PVC device overhauls decrease and new production devices increase. Downstream demand remains weak, with low - level开工 of downstream products and mainly rigid - demand procurement. The export outlook in the fourth quarter is weak due to Indian policies. Social inventory is accumulating, and there is pressure on the futures price from hedging [3]. - Caustic Soda: The spot price of caustic soda is stable with a slight decline. The supply from chlor - alkali enterprises is at a relatively high level. The main downstream in Shandong, alumina factories, has stable purchase prices and increasing delivery volumes. Non - aluminum downstream industries have increased开工, with rigid - demand procurement. Cost support remains, and the chlor - alkali profit is at a medium level compared to the same period [3]. 3. Summary according to Catalogs Market News and Important Data PVC - Futures price and basis: The closing price of the PVC main contract is 4888 yuan/ton (+31), the East China basis is - 218 yuan/ton (- 11), and the South China basis is - 128 yuan/ton (- 31) [1]. - Spot price: The East China calcium carbide - based PVC is quoted at 4670 yuan/ton (+20), and the South China calcium carbide - based PVC is quoted at 4760 yuan/ton (+0) [1]. - Upstream production profit: The blue carbon price is 630 yuan/ton (+0), the calcium carbide price is 2780 yuan/ton (+0), the calcium carbide profit is - 14 yuan/ton (+0), the calcium carbide - based PVC production gross profit is - 421 yuan/ton (- 22), the ethylene - based PVC production gross profit is - 671 yuan/ton (- 43), and the PVC export profit is 9.7 dollars/ton (- 5.0) [1]. - Inventory and开工: The PVC in - factory inventory is 31.6 tons (+0.4), the social inventory is 53.3 tons (+1.1), the calcium carbide - based PVC开工 rate is 80.29% (+2.64%), the ethylene - based PVC开工 rate is 77.20% (+4.61%), and the overall PVC开工 rate is 79.39% (+3.21%) [1]. - Downstream orders: The pre - sales volume of production enterprises is 67.1 tons (- 2.5) [1]. Caustic Soda - Futures price and basis: The closing price of the SH main contract is 2590 yuan/ton (+14), and the basis of 32% liquid caustic soda in Shandong is 129 yuan/ton (- 14) [1]. - Spot price: The price of 32% liquid caustic soda in Shandong is 870 yuan/ton (+0), and the price of 50% liquid caustic soda in Shandong is 1360 yuan/ton (+0) [2]. - Upstream production profit: The single - variety profit of caustic soda in Shandong is 1728 yuan/ton (+0), the comprehensive profit of chlor - alkali in Shandong (0.8 tons of liquid chlorine) is 824.5 yuan/ton (+0.0), the comprehensive profit of chlor - alkali in Shandong (1 ton of PVC) is 532.53 yuan/ton (- 10.00), and the comprehensive profit of chlor - alkali in the Northwest (1 ton of PVC) is 1418.45 yuan/ton (+0.00) [2]. - Inventory and开工: The liquid caustic soda factory inventory is 35.68 tons (- 3.10), the flake caustic soda factory inventory is 2.21 tons (+0.07), and the caustic soda开工 rate is 83.40% (- 0.80%) [2]. - Downstream开工: The alumina开工 rate is 84.38% (- 1.20%), the dyeing开工 rate in East China is 65.76% (+0.13%), and the viscose staple fiber开工 rate is 87.77% (+0.67%) [2]. Market Analysis PVC - Supply: The number of domestic PVC device overhauls continues to decrease, and new production devices are increasing, resulting in an abundant supply [3]. - Demand: Downstream product开工 remains low, with enterprises purchasing only for rigid - demand. The raw material restocking willingness during the "Golden September and Silver October" peak season needs attention. The export outlook in the fourth quarter is weak due to Indian policies [3]. - Inventory: The social inventory of PVC continues to accumulate, and the absolute inventory value is high. The futures warehouse receipts are increasing, and there is pressure on the futures price from hedging [3]. Caustic Soda - Supply: The开工 rate of chlor - alkali enterprises is slightly increasing and at a high level in the same period [3]. - Demand: The main downstream in Shandong, alumina factories, has stable purchase prices and increasing delivery volumes. Non - aluminum downstream industries have increased开工, with rigid - demand procurement. Attention should be paid to the restocking rhythm during the "Golden September and Silver October" peak season and the production start - up rhythm of alumina in Guangxi [3]. - Cost and profit: The electricity price in Shandong has a slight increase in September, and there is some resistance from downstream after the reduction of liquid chlorine subsidies. It is expected that liquid chlorine subsidies will continue to increase, and cost support remains. The chlor - alkali profit is at a medium level compared to the same period [3]. Strategy PVC - Single - side: Fluctuate with macro - sentiment - Inter - delivery: Long V01 and short V05 to capture price fluctuations - Inter - variety: No strategy Caustic Soda - Single - side: Wait and see

1. Report Industry Investment Rating No relevant information provided. 2. Core Views Polyolefin Industry - The current core contradiction in the polyolefin market is not prominent. In the PE market, the current maintenance remains high, and the short - term supply pressure is relatively limited. In the PP market, propane is strong, PDH losses intensify, and short - term unplanned maintenance increases. However, after the new device is put into production in early September, the pressure in East China increases, driving the basis to weaken rapidly, and market transactions are dull [23]. Pure Benzene and Styrene Industry - The supply of pure benzene in September is expected to be more relaxed than expected due to the maintenance of a reforming device in East China, and the weakening demand support will limit the price drive. For styrene, the overall start - up of downstream 3S has rebounded this week, and the port inventory has fallen from a high level. There is an expectation of improvement in supply and demand in the future, but the rebound space is limited due to high port inventory [26]. Chlor - Alkali Industry - The caustic soda market has stabilized slightly in the past two days, and the supply is expected to decline next week. The demand is expected to weaken in the future, but the inventory pressure of caustic soda enterprises is not large, and the spot price may remain firm in the short term. The PVC market has stopped falling and stabilized recently, but the overall pattern of oversupply is difficult to reverse, and there is no obvious sign of improvement in demand [30]. Polyester Industry - PX supply is gradually increasing to a relatively high level, and the supply - demand expectation in September is relatively loose, but the medium - term supply - demand is still expected to be tight. PTA supply - demand is expected to be tight in September, but the basis and processing fees have limited repair drivers. Ethylene glycol supply is strong in the short term and weak in the long term. Short - fiber supply - demand is still weak in the short term. Bottle - chip supply - demand may be balanced in September, and inventory may increase slightly [33]. Crude Oil Industry - Overnight oil prices fell due to concerns about supply surplus overwhelming the premium brought by geopolitical risks. In the short term, oil prices are likely to run weakly, and it is recommended to take a short - side approach [38]. Urea Industry - The urea futures price is running weakly due to the dual pressure of increased supply and weak demand. The domestic urea daily output has rebounded, while agricultural demand is in the off - season, and industrial demand is limited [42]. Methanol Industry - The methanol supply is expected to increase in September as domestic maintenance devices return and foreign start - up reaches a seasonal high. The demand from traditional downstream industries remains weak, and the port inventory has increased significantly, with weak basis performance and prominent pressure [44]. 3. Summaries by Related Catalogs Polyolefin Industry - **Price Change**: From September 10th to 11th, the closing prices of L2601, L2509, PP2601, and PP2509 all decreased, with decreases of 0.24%, 0.43%, 0.13%, and 0.71% respectively. The spreads of L2509 - 2601 and PP2509 - 2601 increased by 28.00% and 42.55% respectively [23]. - **Inventory and Supply - Demand**: PE and PP inventories showed different trends last week, with PE de - stocking and PP stocking. The current maintenance of PE remains high, and short - term supply pressure is limited. For PP, propane is strong, PDH losses intensify, and short - term unplanned maintenance increases, but new devices will increase pressure after being put into production in September [23]. Pure Benzene and Styrene Industry - **Price Change**: From September 10th to 11th, the prices of Brent crude oil, WTI crude oil, CFR China pure benzene, and styrene in East China all changed to varying degrees. For example, the price of Brent crude oil (November) decreased by 1.7%, and the price of styrene in East China increased by 0.3% [26]. - **Inventory and Supply - Demand**: The inventory of pure benzene in Jiangsu ports decreased by 3.4%, and the inventory of styrene in Jiangsu ports decreased by 10.2%. The supply of pure benzene in September is expected to decrease, and the demand support is weakening. For styrene, there is an expectation of improvement in supply and demand in the future [26]. Chlor - Alkali Industry - **Price Change**: From September 10th to 11th, the price of Shandong 32% liquid caustic soda converted to 100% remained unchanged, the price of East China calcium carbide - based PVC increased by 0.2%, and the price of East China ethylene - based PVC remained unchanged [31]. - **Inventory and Supply - Demand**: The inventory of liquid caustic soda in East China factories decreased by 7.8%, and the total social inventory of PVC increased by 2.1%. The supply of caustic soda is expected to decline next week, and the demand for PVC remains weak [31]. Polyester Industry - **Price Change**: From September 10th to 11th, the prices of Brent crude oil, WTI crude oil, and various polyester products changed. For example, the price of POY150/48 increased by 0.5%, and the price of FDY150/96 decreased by 0.5% [34]. - **Inventory and Supply - Demand**: The supply of PX is gradually increasing, and the supply - demand in September is expected to be relatively loose. The supply - demand of PTA in September is expected to be tight, but the basis and processing fees have limited repair drivers. Ethylene glycol is expected to be in a short - term supply - demand balance but may face oversupply in the fourth quarter [34]. Crude Oil Industry - **Price Change**: On September 12th compared with September 11th, the prices of Brent, WTI, and various refined oil products decreased. For example, the price of Brent decreased by 1.66%, and the price of NYM RBOB decreased by 0.51% [38]. - **Supply - Demand**: The supply of crude oil is expected to be in a record - high surplus next year, and the increase in Saudi Arabia's export quota to China confirms the supply pressure. The increase in the number of initial jobless claims in the United States has raised concerns about economic and demand slowdown [38]. Urea Industry - **Price Change**: From September 10th to 11th, the closing price of the methanol main contract decreased by 0.83%, and the prices of various urea futures contracts and spreads also changed [42]. - **Inventory and Supply - Demand**: The domestic urea daily output has rebounded to 18.44 tons, and the start - up rate has increased month - on - month. Agricultural demand is in the off - season, and industrial rigid - demand procurement is limited. Although export containerization provides some support, the decline in Indian consumption weakens the positive effect [42]. Methanol Industry - **Price Change**: From September 10th to 11th, the closing prices of MA2601 and MA2509 decreased by 0.83% and 2.30% respectively, and the MA91 spread decreased by 22.54% [44]. - **Inventory and Supply - Demand**: The methanol enterprise inventory increased by 0.43%, and the port inventory increased by 8.59%. The domestic maintenance devices are expected to return in early September, and the foreign start - up has reached a seasonal high, while the traditional downstream demand remains weak [44].

1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - PVC fluctuates mainly with macro - sentiment. Supply is expected to increase, demand remains weak, exports are expected to decline in Q4, inventory is accumulating, and there is still room to compress chlor - alkali profits. The short - term trend is macro - led, and policy progress needs attention [3]. - Caustic soda spot prices are stable with a slight decline. Supply increases, demand from major downstream industries varies, and cost support remains. Attention should be paid to downstream replenishment rhythms and Guangxi alumina production start - up [3]. 3. Summary by Related Catalogs Market News and Important Data PVC - Futures price and basis: The closing price of the PVC main contract is 4,857 yuan/ton (+10), the East China basis is - 207 yuan/ton (-10), and the South China basis is - 97 yuan/ton (+0) [1]. - Spot price: East China calcium carbide method is quoted at 4,650 yuan/ton (+0), and South China calcium carbide method is quoted at 4,760 yuan/ton (+10) [1]. - Upstream production profit: The semi - coke price is 630 yuan/ton (+0), the calcium carbide price is 2,780 yuan/ton (+50), the calcium carbide profit is - 14 yuan/ton (+50), the PVC calcium carbide method production gross profit is - 421 yuan/ton (-22), the PVC ethylene method production gross profit is - 671 yuan/ton (-43), and the PVC export profit is 14.7 dollars/ton (+1.7) [1]. - Inventory and operation rate: PVC factory inventory is 31.6 million tons (+0.4), social inventory is 53.3 million tons (+1.1), the calcium carbide method operation rate is 77.65% (+2.41%), the ethylene method operation rate is 72.59% (+3.93%), and the overall operation rate is 76.18% (+2.85%) [1]. - Downstream order situation: The pre - sales volume of production enterprises is 67.1 million tons (-2.5) [1]. Caustic Soda - Futures price and basis: The closing price of the SH main contract is 2,576 yuan/ton (+7), and the basis of 32% liquid caustic soda in Shandong is 143 yuan/ton (-7) [1]. - Spot price: The price of 32% liquid caustic soda in Shandong is 870 yuan/ton (+0), and the price of 50% liquid caustic soda is 1,360 yuan/ton (+0) [2]. - Upstream production profit: The single - variety profit of caustic soda in Shandong is 1,728 yuan/ton (+0), the comprehensive profit of chlor - alkali in Shandong (0.8 tons of liquid chlorine) is 824.5 yuan/ton (-120.0), the comprehensive profit of chlor - alkali in Shandong (1 ton of PVC) is 542.53 yuan/ton (-70.00), and the comprehensive profit of chlor - alkali in the Northwest (1 ton of PVC) is 1,418.45 yuan/ton (+0.00) [2]. - Inventory and operation rate: Liquid caustic soda factory inventory is 38.78 million tons (+0.83), flake caustic soda factory inventory is 2.14 million tons (+0.00), and the caustic soda operation rate is 84.20% (+1.80%) [2]. - Downstream operation rate: The alumina operation rate is 84.38% (-1.20%), the dyeing operation rate in East China is 65.63% (+0.90%), and the viscose staple fiber operation rate is 87.10% (+1.08%) [2]. Market Analysis PVC - Supply: Domestic PVC plant overhauls continue to decrease, and supply is expected to increase. With new production capacity coming on - stream, supply remains abundant [3]. - Demand: Downstream product operation rates remain low, with enterprises making rigid purchases. Attention should be paid to downstream raw material replenishment willingness during the peak season. Export orders and deliveries decline, and Q4 export expectations weaken due to Indian policies [3]. - Inventory: Social inventory continues to accumulate, and the absolute inventory level is high. Futures warehouse receipts are rising, and hedging pressure suppresses prices [3]. - Profit: There is still room to compress chlor - alkali profits, and supply - demand remains weak. "Anti - involution" affects the market, and the short - term market is macro - led [3]. Caustic Soda - Supply: The operation rate of chlor - alkali enterprises increases slightly and is at a high level [3]. - Demand: The purchase price of Shandong's main downstream alumina factories is stable, and delivery volume is rising. Attention should be paid to purchase prices and pre - holiday stocking demand. Non - aluminum downstream operation rates increase, with rigid purchases [3]. - Cost: Shandong's electricity price increases slightly in September, and downstream resistance emerges after the reduction of liquid chlorine subsidies. It is expected that liquid chlorine subsidies will increase, and cost support remains [3]. - Profit: Chlor - alkali profits are at a medium level compared to the same period [3]. Strategy PVC - Single - side: Fluctuate with macro - sentiment [4]. - Inter - delivery: Recommend gradually building long positions in the positive spread when V01 - 05 is below - 300 [4]. - Inter - commodity: None [4]. Caustic Soda - Single - side: Wait and see [4]. - Inter - delivery: Go long on the SH10 - 01 spread on dips [4]. - Inter - commodity: None [4].

1. Report Industry Investment Ratings No information about industry investment ratings is provided in the reports. 2. Core Views of the Reports Chlor - Alkali Industry - The caustic soda futures price may have limited downside space. The spot price may remain firm in the short - term due to low inventory pressure on caustic soda enterprises and expected supply decline. Attention should be paid to the alumina plant's purchasing rhythm and device fluctuations [2]. - The PVC futures price will continue to be weakly volatile. The supply - demand pressure increases, and the demand has not improved. Although in the traditional peak season, the demand remains sluggish. The cost side provides some support [2]. Methanol Industry - On the supply side, inland maintenance devices are expected to gradually resume in early September, and the import volume will still be large. On the demand side, traditional downstream sectors are still weak. The port has been significantly accumulating inventory, and the basis is weak. The key is to focus on the inventory digestion rhythm [5]. Urea Industry - The urea futures price is running weakly due to the short - term imbalance of domestic supply - demand fundamentals. The supply is abundant, while the demand is weak, leading to inventory accumulation in factories [11]. Crude Oil Industry - The overnight oil price continued to fluctuate widely. The current oil price is supported by geopolitical premiums, but the upside space is restricted by the loose fundamentals. It is recommended to mainly observe on the long - short side and wait for opportunities to expand the spread on the options side [44]. Polyester Industry Chain - PX: The supply is gradually increasing to a relatively high level, and the mid - term supply - demand is expected to be tight. The price has support at the low level, but the upside space of the rebound is limited. It is recommended to treat PX11 as a short - term shock between 6600 - 6900 [39]. - PTA: The supply - demand in September is expected to be tight, but the basis and processing fee repair drive are limited. It is recommended to treat TA as a short - term shock between 4600 - 4800 and mainly conduct TA1 - 5 rolling reverse spreads [39]. - Ethylene glycol: The supply - demand pattern is strong in the near - term and weak in the long - term. It is expected to slightly reduce inventory in September and enter the inventory accumulation channel in the fourth quarter. Attention should be paid to the support of EG01 at around 4300 and the EG1 - 5 reverse spread opportunity [39]. - Short - fiber: The short - term supply - demand pattern is still weak, following the raw material fluctuations. The unilateral strategy is the same as that of PTA, and the processing fee on the disk fluctuates between 800 - 1000 [39]. - Bottle chips: In September, the supply and demand may both decrease, and the inventory is expected to increase. PR follows the cost fluctuations, and the processing fee has limited upside space [39]. Polyolefin Industry - For PP, the loss of PDH is intensifying, and the basis has weakened rapidly. For PE, the current maintenance is still at a relatively high level, and the supply pressure is relatively limited in the short - term. The overall market will present a pattern of "decreasing supply and increasing demand" [49][51]. Pure Benzene - Styrene Industry - Pure benzene: The supply in September is lower than expected, and the demand support is weakening. The supply - demand is expected to be loose, and the price is driven by the strong oil price. BZ2603 is expected to follow styrene and fluctuate strongly [57]. - Styrene: The short - term drive is weak, but the supply - demand is expected to improve in the future. The price is supported by the oil price, but the rebound space is limited by high inventory. EB10 can be treated with low - buying on a rolling basis, and attention should be paid to the pressure around 7200 and the spread expansion between EB11 - BZ11 [57]. 3. Summaries According to Relevant Catalogs Chlor - Alkali Industry - **Prices**: The spot prices of caustic soda and PVC remained stable on September 10, while the futures prices showed different degrees of changes. For example, SH2509 of caustic soda increased by 7.0%, and V2509 of PVC increased by 0.1% [2]. - **Supply**: The caustic soda industry's operating rate is expected to decline next week due to maintenance. The PVC supply has an upward expectation as some device maintenance is restored [2]. - **Demand**: The demand for caustic soda is expected to weaken, especially from the alumina industry. The PVC demand has not improved, and downstream product enterprises maintain a low operating rate [2]. - **Inventory**: The liquid caustic soda inventory in East China factories decreased, while the PVC upstream factory inventory and total social inventory increased slightly [2]. Methanol Industry - **Prices**: On September 10, the methanol futures and spot prices showed different degrees of increase. For example, MA2601 increased by 0.38%, and the spot price in Inner Mongolia's northern line increased by 1.31% [4]. - **Inventory**: The methanol enterprise inventory, port inventory, and social inventory all increased. The port inventory increased by 8.59% [4]. - **Operating Rate**: The upstream domestic and overseas enterprise operating rates increased, while some downstream operating rates decreased, such as the formaldehyde and glacial acetic acid operating rates [5]. Urea Industry - **Prices**: The urea futures price is running weakly. The spot prices in different regions showed little change on September 10 [11]. - **Supply**: The daily output of urea remains at a high level, and some maintenance devices are expected to resume production [11]. - **Demand**: The agricultural demand is in the off - season, and the industrial demand is for rigid procurement, resulting in insufficient total demand [11]. - **Inventory**: The domestic urea factory inventory increased, while the port inventory remained unchanged [11]. Crude Oil Industry - **Prices**: On September 11, the prices of Brent, WTI, and SC crude oil increased slightly. The spreads between different contracts and regions also changed [44]. - **Supply - Demand Data**: According to EIA data, the U.S. crude oil production, refinery operating rate, and various inventory changes are shown in the report [14]. Polyester Industry Chain - **Prices**: On September 10, the prices of upstream crude oil, naphtha, and PX increased slightly, while the prices of some downstream polyester products decreased, such as the polyester bottle chip price [39]. - **Operating Rate**: The operating rates of PX, PTA, MEG, and polyester products showed different degrees of changes. For example, the Asian PX operating rate increased by 0.9% [39]. - **Inventory**: The MEG port inventory is at a low level, and the arrival volume in early September is moderately low [39]. Polyolefin Industry - **Prices**: On September 10, the futures prices of LLDPE and PP showed small changes, and the spot prices remained stable [49]. - **Operating Rate**: The PE device operating rate decreased slightly, and the PP device operating rate increased. The downstream weighted operating rates of both increased slightly [49]. - **Inventory**: The PE enterprise inventory increased, and the PP enterprise inventory decreased. The PP trader inventory increased [49]. Pure Benzene - Styrene Industry - **Prices**: On September 10, the prices of upstream crude oil, naphtha, and pure benzene increased slightly, while the price of styrene remained stable [57]. - **Operating Rate**: The operating rates of some pure benzene and styrene downstream products decreased, while the styrene operating rate increased [57]. - **Inventory**: The pure benzene and styrene inventories in Jiangsu ports decreased [57].

Report Industry Investment Ratings - Acrylonitrile: ★★★ [1] - Pure Benzene: ★★★ [1] - PX: ★★★ [1] - Ethylene Glycol: ★★★ [1] - Bottle Chip: ★★★ [1] - Methanol: ★★★ [1] - Caustic Soda: ★★★ [1] - Soda Ash: ★★★ [1] - Polyolefin: ☆☆☆ [1] - Styrene: ☆☆☆ [1] - PTA: ★★★ [1] - Short Fiber: ☆☆☆ [1] - Urea: ☆☆☆ [1] - PVC: ★★★ [1] - Glass: ☆☆☆ [1] Core Viewpoints - The supply of olefins - polyolefins is polarized, with tight supply of propylene and stable supply of polyolefins. Market performance varies due to different demand situations [2] - The price of pure benzene is weakly operating, but there may be improvements in the third - quarter supply - demand situation. The price of styrene has certain support [3] - In the polyester industry, PX and PTA prices are related, and the demand for polyester products shows a positive trend, but there are also issues such as high inventory [5] - The methanol market may stabilize after a weak period, while the urea market is expected to remain weak [6] - The PVC market is under supply pressure and may decline, and the caustic soda market will likely fluctuate widely [7] - The soda ash market may be short - sold at high prices, and the glass market is expected to fluctuate widely [8] Summary by Related Catalogs Olefins - Polyolefins - Propylene futures fluctuate narrowly around the 5 - day moving average, with tight supply and strong downstream demand. Polyolefin futures are in a low - level range, with stable supply but slow demand growth [2] Pure Benzene - The price of pure benzene fluctuates above 6000 yuan/ton, with increasing supply and demand, and a weak price due to factors such as poor downstream profitability. The price of styrene has certain support due to device maintenance [3] Polyester - PX price rebounds, PTA follows up slightly, and the demand for polyester products is improving, but there are issues such as high inventory. Ethylene glycol has a strong basis, and short - fiber can be considered for long - position allocation [5] Coal Chemical Industry - The methanol market may stabilize after a weak period, with port inventory accumulation and expected demand improvement. The urea market is expected to remain weak due to factors such as high inventory and weak demand [6] Chlor - alkali Industry - PVC has supply pressure and may decline due to new device production. Caustic soda has a differentiated performance in different regions and is expected to fluctuate widely [7] Soda Ash - Glass - Soda ash supply is slightly reduced, and the market may be short - sold at high prices. Glass production capacity is increasing slightly, and the price may fluctuate widely [8]

1. Report Industry Investment Rating - Not provided in the content 2. Core Viewpoints of the Report - PVC fluctuates mainly with macro - sentiment. Supply is expected to increase, demand remains weak, exports are affected by policies, and inventory is high. The "anti - involution" factor affects the market, and the short - term is macro - led, with policy progress to be monitored [3]. - Caustic soda spot is mainly stable. Supply from chlor - alkali enterprises rises, demand from major downstream in Shandong is stable with increasing delivery, and non - aluminum downstream demand is rising. Attention should be paid to downstream replenishment and production in Guangxi, and cost support remains [3]. 3. Summary by Related Catalogs Market News and Important Data PVC - Futures: The closing price of the main PVC contract is 4847 yuan/ton (- 43), the East China basis is - 197 yuan/ton (+ 23), and the South China basis is - 97 yuan/ton (+ 43) [1]. - Spot: East China calcium carbide - based PVC is quoted at 4650 yuan/ton (- 20), and South China calcium carbide - based PVC is at 4750 yuan/ton (+ 0) [1]. - Upstream profit: Coke price is 630 yuan/ton (+ 0), calcium carbide price is 2730 yuan/ton (+ 0), calcium carbide profit is - 64 yuan/ton (+ 0), PVC calcium carbide - based gross profit is - 421 yuan/ton (- 22), PVC ethylene - based gross profit is - 671 yuan/ton (- 43), and PVC export profit is 13.1 dollars/ton (+ 0.1) [1]. - Inventory and operation: PVC factory inventory is 31.6 tons (+ 0.4), social inventory is 53.3 tons (+ 1.1), calcium carbide - based PVC operation rate is 77.65% (+ 2.41%), ethylene - based PVC operation rate is 72.59% (+ 3.93%), and overall PVC operation rate is 76.18% (+ 2.85%) [1]. - Downstream orders: The pre - sales volume of production enterprises is 67.1 tons (- 2.5) [1]. Caustic Soda - Futures: The closing price of the SH main contract is 2569 yuan/ton (- 14), and the basis of 32% liquid caustic soda in Shandong is 150 yuan/ton (+ 14) [1]. - Spot: 32% liquid caustic soda in Shandong is quoted at 870 yuan/ton (+ 0), and 50% liquid caustic soda is at 1360 yuan/ton (+ 0) [1]. - Upstream profit: The single - variety profit of caustic soda in Shandong is 1728 yuan/ton (+ 0), the comprehensive profit of chlor - alkali in Shandong (0.8 tons of liquid chlorine) is 944.5 yuan/ton (+ 0.0), the comprehensive profit of chlor - alkali in Shandong (1 ton of PVC) is 612.53 yuan/ton (- 10.00), and the comprehensive profit of chlor - alkali in the Northwest (1 ton of PVC) is 1418.45 yuan/ton (+ 0.00) [2]. - Inventory and operation: Liquid caustic soda factory inventory is 38.78 tons (+ 0.83), flake caustic soda factory inventory is 2.14 tons (+ 0.00), and the caustic soda operation rate is 84.20% (+ 1.80%) [2]. - Downstream operation: The alumina operation rate is 84.38% (- 1.20%), the dyeing operation rate in East China is 65.63% (+ 0.90%), and the viscose staple fiber operation rate is 87.10% (+ 1.08%) [2]. Market Analysis PVC - Supply: Domestic PVC plant overhauls continue to decrease, and supply is expected to increase. Newly - commissioned plants lead to abundant supply [3]. - Demand: Downstream product operation remains low, with rigid procurement. Attention should be paid to downstream raw material replenishment in the peak season. Export orders and deliveries decline, and the export outlook in Q4 weakens [3]. - Inventory: PVC social inventory continues to accumulate, and the absolute inventory is high. Futures warehouse receipts are rising, suppressing prices [3]. - Profit: Chlor - alkali profit can still be compressed, and supply - demand remains weak [3]. Caustic Soda - Supply: Chlor - alkali enterprise operation rates rise slightly, reaching a high level [3]. - Demand: The purchase price of major downstream alumina factories in Shandong is stable, with increasing deliveries. Non - aluminum downstream operation rises, with rigid procurement. Attention should be paid to downstream replenishment and production in Guangxi [3]. - Cost: The electricity price in Shandong rises slightly in September, and the liquid chlorine subsidy is expected to increase, providing cost support [3]. - Profit: Chlor - alkali profit is at a medium level [3]. Strategy PVC - Single - side: Fluctuate with macro - sentiment [4]. - Inter - delivery: Recommend gradually building long positions in the positive spread when V01 - 05 is below - 300 [4]. - Inter - commodity: None [4]. Caustic Soda - Single - side: Neutral [4]. - Inter - delivery: Go long on the SH10 - 01 spread on dips [4]. - Inter - commodity: None [4]

Report Industry Investment Ratings No relevant content provided. Core Views - **Polyester Industry**: The short - term supply - demand pattern of short - fiber is weak, with high supply and uncertain demand during the peak season. PTA's absolute price follows raw material fluctuations, and its basis and processing fee repair drivers are limited. The supply - demand pattern of ethylene glycol is strong in the near term and weak in the long term. The price of PX is expected to be supported at low levels, but the rebound space is limited [2]. - **PVC and Caustic Soda Industry**: The caustic soda spot price may remain firm in the short term, while the decline space of the futures price is limited. The PVC market is under pressure, with supply increasing and demand remaining weak, and it is expected to continue weak and volatile [5]. - **Crude Oil Industry**: Geopolitical events increase the risk premium of oil prices, but the loose supply - demand pattern restricts the increase. It is recommended to mainly wait and see on the single - side, and look for opportunities to expand spreads on the option side [9]. - **Pure Benzene and Styrene Industry**: The supply - demand of pure benzene in September is expected to be loose, and its price is driven by oil prices. The short - term drive of styrene is weak, but there is an expectation of improvement in supply - demand in the future [14]. - **Polyolefin Industry**: The current core contradiction in the polyolefin market is not prominent. The market will present a pattern of "decreasing supply and increasing demand", with attention to the supply rhythm and seasonal demand [17]. - **Urea Industry**: The urea futures price is weak due to a loose supply - demand pattern and low market sentiment, with high supply and weak demand [21]. - **Methanol Industry**: The methanol supply is increasing, and the demand from traditional downstream is weak. The port is accumulating inventory, and attention should be paid to the inventory digestion rhythm [33]. Summary by Directory Polyester Industry - **Raw Material Prices**: On September 9, Brent crude oil (November) was $66.02/barrel, up 0.6%; CFR China PX was $836/ton, up 0.4% [2]. - **Product Prices and Cash Flows**: POY150/48 price was 6805 yuan/ton, down 0.3%; its cash flow was 144 yuan/ton, down 3.7% [2]. - **Industry Operating Rates**: The comprehensive operating rate of polyester was 91.3%, up 1.0%; the operating rate of PTA was 70.4%, up 3.4% [2]. PVC and Caustic Soda Industry - **Product Prices**: On September 9, the market price of PVC in East China was 4650 yuan/ton, unchanged; the price of 32% liquid caustic soda in Shandong was 2718.8 yuan/ton, unchanged [5]. - **Industry Operating Rates**: The operating rate of the caustic soda industry was 86.7%, up 1.5%; the total operating rate of PVC was 76.2%, up 3.9% [5]. - **Inventory**: On September 4, the inventory of liquid caustic soda in East China factories was 170,000 tons, down 7.8%; the total social inventory of PVC was 533,000 tons, up 2.1% [5]. Crude Oil Industry - **Prices and Spreads**: On September 10, Brent crude oil was $66.70/barrel, up 0.47%; the spread between Brent M1 - M3 was $0.55/barrel, up 3.77% [9]. - **Driving Factors**: Geopolitical events such as the Israeli air - strike on Doha and Ukraine's attacks on Russian energy infrastructure support oil prices, while the loose supply - demand pattern restricts the increase [9]. Pure Benzene and Styrene Industry - **Raw Material Prices**: On September 9, CFR China pure benzene was $733/ton, down 0.1%; the price of pure benzene in East China was 5900 yuan/ton, down 0.2% [13]. - **Product Prices and Spreads**: The spot price of styrene in East China was 7110 yuan/ton, down 0.4%; the spread between EB - BZ spot was 1210 yuan/ton, down 1.6% [14]. - **Industry Operating Rates**: The operating rate of Asian pure benzene was 77.9%, unchanged; the operating rate of styrene was 79.7%, up 2.0% [14]. Polyolefin Industry - **Product Prices**: On September 9, the closing price of L2601 was 7229 yuan/ton, down 0.30%; the closing price of PP2601 was 6949 yuan/ton, down 0.27% [17]. - **Inventory and Operating Rates**: The inventory of PE decreased last week, while that of PP increased. The operating rate of PP devices was 80.2%, up 2.6% [17]. Urea Industry - **Prices and Spreads**: On September 9, the price of the main urea contract was 2398 yuan/ton, down 0.42%; the spread between UR - MA main contracts was - 756 yuan/ton, down 2.38% [21]. - **Supply and Demand**: The daily output of urea is relatively high, and demand from agriculture, industry, and exports is weak [21]. - **Inventory**: The factory inventory of urea was 1095,000 tons, up 0.85%; the port inventory was 620,900 tons, up 3.48% [21]. Methanol Industry - **Prices and Spreads**: On September 9, the closing price of MA2601 was 2398 yuan/ton, down 10 yuan; the spread between MA91 was - 151 yuan, up 9 yuan [33]. - **Inventory**: The enterprise inventory of methanol was 341,083 tons, up 1 ton; the port inventory was 1428,000 tons, up 13 tons [33]. - **Operating Rates**: The operating rate of upstream domestic enterprises was 74.21%, up 2%; the operating rate of downstream external - procurement MTO devices was 78.81%, up 0.2% [33].