1. Report Industry Investment Ratings No relevant information is provided in the reports. 2. Report Core Views Chlor - Alkali Industry - **Caustic Soda**: In the fourth quarter, the downside space is limited. Although the current downstream demand is mainly based on rigid - need purchases, there may be procurement willingness after the National Day due to low prices. In the fourth quarter, there may be concentrated stocking behavior, and the spot liquidity may tighten [2]. - **PVC**: In the fourth quarter, pay attention to cost support. Although the supply is in an over - capacity situation, exports have alleviated some pressure. The cost side provides bottom support, and the downside space during the peak season is limited [2]. Polyester Industry Chain - **PX**: In the fourth quarter, the supply - demand is expected to be weak, and the PXN has a compression expectation. The price will be under pressure due to weak cost - side support and weak supply - demand expectations [6]. - **PTA**: In the fourth quarter, it is difficult to have an independent market and may follow the cost side to fluctuate weakly [6]. - **Ethylene Glycol**: In the fourth quarter, it is expected to enter a period of inventory accumulation as it enters the demand off - season [6]. Polyolefin Industry - **LLDPE and PP**: For LLDPE, the current maintenance is at a high point, and the inventory of the upper - middle reaches is being depleted. For PP, unplanned maintenance has increased due to losses, and the inventory has decreased. However, after the festival, there is a large inventory pressure, and the new capacity release limits the upside space [9]. Methanol Industry - **Methanol**: In the short term, it will continue the volatile pattern. The supply side has a game between the expected supply reduction and the relatively healthy inventory structure. The demand side is weak as the traditional downstream enters the seasonal off - season, and the new polyolefin device production expectations suppress the MTO demand [21]. Pure Benzene - Styrene Industry - **Pure Benzene**: The supply - demand is expected to be loose, and the price driving force is weak. It is necessary to pay attention to the oil price trend and macro - market sentiment [25]. - **Styrene**: The supply - demand is expected to be loose, and the price is under pressure. In the short term, it is affected by geopolitical and macro - news [26]. Fertilizer Industry - **Urea**: The futures price fluctuates downward. The daily output is high, the demand is weak, and the export situation is uncertain [31]. Crude Oil Industry - **Crude Oil**: In the fourth quarter, the oil price will likely maintain a wide - range volatile pattern. Unilateral trading is recommended to use a band - trading strategy, and arbitrage is recommended to use a positive - spread strategy [33][35]. 3. Summary by Relevant Catalogs Chlor - Alkali Industry - **Spot and Futures Prices**: On September 26, compared with September 25, the prices of some products such as East China PVC by calcium carbide method decreased slightly, and the prices of some caustic soda products remained unchanged [2]. - **Overseas Quotes and Export Profits**: The overseas quotes of caustic soda and PVC were mostly stable, but the export profit of caustic soda decreased by 26.3%, and that of PVC increased by 323.8% [2]. - **Supply**: The overall PVC start - up rate increased by 0.9%, while the data of caustic soda start - up rate was not available [2]. - **Demand**: The start - up rates of some downstream industries of caustic soda and PVC increased slightly, and the PVC pre - sales volume increased by 0.5% [2]. - **Inventory**: The inventories of liquid caustic soda in East China factories and Shandong, and PVC upstream factories increased, while the total PVC social inventory remained unchanged [2]. Polyester Industry Chain - **Upstream Prices**: On September 26, compared with September 25, the prices of Brent and WTI crude oil increased, while the prices of some products such as CFR Japan naphtha decreased [6]. - **PX - Related Prices and Spreads**: The prices of CFR China PX and PX spot in RMB decreased [6]. - **PTA - Related Prices and Spreads**: The PTA spot price in East China increased slightly, and the PTA futures price decreased [6]. - **MEG - Related Prices and Spreads**: The MEG spot price in East China decreased, and the MEG futures price also decreased [6]. Polyolefin Industry - **Futures and Spot Prices**: On September 26, compared with September 25, the prices of L2601, PP2601 and other futures decreased slightly, and the price of East China PP raffia decreased by 0.3% [8][9]. - **Inventory and Start - up Rates**: The enterprise and social inventories of PE and PP decreased, and the start - up rates of PE and PP devices increased [9]. Methanol Industry - **Prices and Spreads**: On September 26, compared with September 25, the prices of MA2601 and MA2509 decreased slightly, and the regional spreads changed [21]. - **Inventory**: The enterprise, port and social inventories of methanol decreased [21]. - **Start - up Rates**: The start - up rate of upstream domestic enterprises increased, while the start - up rates of some downstream industries decreased [21]. Pure Benzene - Styrene Industry - **Upstream Prices and Spreads**: On September 26, compared with September 25, the prices of some upstream products such as CFR China pure benzene decreased, and the import profit of pure benzene decreased [25]. - **Styrene - Related Prices and Spreads**: The prices of styrene in East China spot and futures decreased slightly [25]. - **Inventory and Start - up Rates**: The pure benzene inventory in Jiangsu ports decreased, while the styrene inventory increased. The start - up rates of some industries in the pure benzene and styrene industry chain changed [25]. Fertilizer Industry - **Fertilizer Prices**: The prices of various fertilizers such as ammonium sulfate and sulfur are provided on September 26 [28][29]. - **Urea Data**: The daily and weekly production, inventory, and order days of urea are presented. The daily output is high, and the demand is weak [31]. Crude Oil Industry - **Crude Oil Prices and Spreads**: On September 29, compared with September 26, the prices of Brent, WTI and SC crude oil decreased, and the spreads changed [33]. - **Refined Oil Prices and Spreads**: The prices of refined oil products such as NYM RBOB and NYM ULSD decreased, and the spreads also changed [33]. - **Refined Oil Crack Spreads**: The crack spreads of some refined oil products such as US gasoline and diesel changed [33].

Report Industry Investment Rating - Not provided in the content Core Viewpoints - This week, the caustic soda futures showed a significant downward trend, with short - sellers actively increasing positions to push down the futures price, and there were stop - loss phenomena among long - sellers. The main reasons include weak spot prices, the non - decline of liquid chlorine prices contrary to expectations, and the continuous decline of alumina spot and futures prices. In the later stage, the caustic soda futures may be supported by the liquid chlorine price, especially during the National Day holiday. Therefore, the caustic soda futures should be treated with a volatile mindset [5]. Summary by Directory 01 Overview - **Supply**: In the period from September 19 - 25, 2025, the average capacity utilization rate of Chinese caustic soda sample enterprises with a capacity of 200,000 tons and above was 82.5%, a 0.6% week - on - week increase. Northwest had new device production cuts and maintenance, while North China and East China had increased loads after device maintenance. Next week, except for the Southwest region, other six regions are expected to increase their loads, with an estimated capacity utilization rate of about 85.9% and a weekly output of about 845,700 tons [5]. - **Demand - Alumina**: China's alumina production was 1.855 million tons, a decline from last week's 1.861 million tons. Shandong's alumina production remained flat at 626,000 tons. The liquid caustic soda purchase price of large - scale alumina factories in Shandong dropped to 740 yuan/ton, with a 100% converted price of 2,313 yuan/ton. Alumina prices and production profits declined recently [5]. - **Demand - Viscose Staple Fiber**: China's viscose staple fiber production was 90,000 tons, a 30 - ton increase from last week. As of September 25, 2025, the total daily output of 20 domestic viscose staple fiber enterprises was around 12,960 tons. The physical inventory of domestic viscose staple fiber factories was 128,200 tons, a 50 - ton decrease from the previous period and a 32,000 - ton increase compared to the same period last year, a year - on - year increase of 33.26%. The downstream demand for viscose staple fiber was weak [5]. - **Demand - Printing and Dyeing**: As of September 25, 2025, the comprehensive startup rate in the Jiangsu and Zhejiang regions was 66.15%, a 0.4% increase from the previous period. The average startup rate of printing and dyeing enterprises in Zhejiang was 66.25%, remaining flat compared to the previous data and a 1.25% increase year - on - year. The overall startup rate of dyeing factories in Zhejiang remained stable, with orders featuring "short, frequent, and fast" characteristics. Most dyeing factories planned to have a 2 - 3 - day holiday during the National Day [5]. - **Export**: In August, the export volume of liquid caustic soda was 213,500 tons, and the export volume of flake caustic soda was 66,800 tons [5]. - **Inventory**: As of September 25, 2025, the factory inventory of fixed liquid caustic soda sample enterprises with a capacity of 200,000 tons and above in China was 391,200 tons (wet tons), a 3.4% week - on - week increase and a 26.26% year - on - year increase. The storage capacity ratio of domestic liquid caustic soda sample enterprises was 20.78%, a 0.64% week - on - week increase [5]. - **Profit**: This Friday, the average price of Shandong liquid caustic soda was 2,500 yuan/ton, the average price of liquid chlorine was - 100 yuan/ton, and the chlor - alkali profit was 306 yuan/ton, at a historically low level. The decline in liquid caustic soda prices compressed the comprehensive chlor - alkali profit [5]. - **Strategy**: Adopt a volatile mindset for single - side trading; no strategy for arbitrage and options [5]. 02 Price - The report presents price trends of Shandong chlor - alkali spot, flake caustic soda, export caustic soda, caustic soda futures, basis, inter - month spreads, raw salt, and coal, with data sources from Mysteel and compiled by Zhongtai Futures [7][10][13][16] 03 Supply - **Caustic Soda Supply**: Data on China's weekly caustic soda production, caustic soda startup rate, caustic soda device loss volume, and cumulative caustic soda production are provided, with data sources from Mysteel and compiled by Zhongtai Futures [20][21] - **Caustic Soda Inventory and Chlor - Alkali Profit**: Information on the liquid caustic soda inventory of Chinese sample enterprises, caustic soda futures warehouse receipts, and Shandong chlor - alkali enterprise profits is presented, with data sources from Mysteel and compiled by Zhongtai Futures [23][24] - **Chlor - Alkali Device Maintenance Plan**: This week, many chlor - alkali devices have resumed operation after maintenance, and there are also some devices under maintenance. In the future, multiple enterprises have maintenance plans, including specific time and capacity information [26] 04 Demand - **Alumina Industry**: Data on China's alumina production, Shandong's alumina production, alumina profit, Shandong alumina enterprises' liquid caustic soda purchase price, and alumina inventory are provided, with data sources from Mysteel and compiled by Zhongtai Futures [29][30][31][32] - **Textile Industry**: Information on viscose staple fiber capacity utilization rate, market price, factory inventory, inventory available days of viscose staple fiber in Chinese rayon yarn enterprises, textile enterprise weekly startup rate, order days, in - factory finished product inventory available days, and Jiangsu and Zhejiang region printing and dyeing factory startup rate is presented, with data sources from Mysteel and compiled by Zhongtai Futures [34][35][37][38] - **Pulp and Paper Industry**: Data on pulp production, paper product production, and the inventory available days of paper products in upstream factories are provided, with data sources from Mysteel and compiled by Zhongtai Futures [39][40] - **Export**: Data on China's monthly export volume of liquid caustic soda, flake caustic soda, cumulative export volume of caustic soda, and monthly export volume of caustic soda are presented, with data sources from Mysteel and compiled by Zhongtai Futures [41][42]

氯碱周报 | 2025-09-28 烧碱主力下游继续下调接货价 烧碱：主力下游继续下调接货价 市场要闻与重要数据 价格方面：截至2025-09-26，烧碱期货价格及基差：SH主力收盘价2528元/吨（-9）；山东32%液碱基差-28元/吨（+9）。 现货价格：山东32%液碱报价800元/吨（+0）；山东50%液碱报价1300元/吨（+0）。 供应方面：烧碱开工率82.50%，（+0.60%）；烧碱周度产量81.29万吨（+0.60）。 需求方面：主力下游氧化铝开工率85.95%（-0.28%），氧化铝周度产量185.50万吨（-0.60），氧化铝港口库存7.20 （+1.40）；印染华东开工率66.15%（+0.39%）；粘胶短纤开工率89.82%（+0.30%）；白卡纸开工率：82.72%（+0.69%）； 阔叶浆开工率84.70%（+2.50%）。 生产利润方面：截至2025-09-26，山东氯碱综合利润（1吨烧碱+0.8吨液氯）725.78元/吨（+0.00），山东氯碱综合利 润（1吨烧碱+1吨PVC）179.78元/吨（+0.00），山东烧碱单品种利润1508.90元/吨（+0.00），西北氯碱综合利 ...

1. Report Industry Investment Rating - Not provided in the content 2. Core Viewpoints - The PVC market fluctuates with the macro - environment. Supply is abundant due to new production capacity and reduced maintenance losses. Downstream demand shows some improvement, but the market is affected by export policies and high inventory. The烧碱 market sees a decline in 32% alkali prices and stable 50% alkali prices. Demand from alumina is stable but with high - price delivery issues, and non - aluminum demand is gradually recovering. Attention should be paid to downstream replenishment and new alumina production [3] 3. Summary by Related Catalogs Market News and Important Data PVC - **Futures Prices and Basis**: The PVC main contract closed at 4935 yuan/ton (+16), with an East China basis of - 205 yuan/ton (-6) and a South China basis of - 105 yuan/ton (+4) [1] - **Spot Prices**: East China calcium carbide - based PVC was quoted at 4730 yuan/ton (+10), and South China calcium carbide - based PVC was quoted at 4830 yuan/ton (+20) [1] - **Upstream Production Profits**: The semi - coke price was 690 yuan/ton (+0), the calcium carbide price was 2890 yuan/ton (+0), the calcium carbide profit was 48 yuan/ton (+0), the PVC calcium carbide - based production gross profit was - 657 yuan/ton (-155), the PVC ethylene - based production gross profit was - 652 yuan/ton (+20), and the PVC export profit was 5.2 dollars/ton (+0.1) [1] - **Inventory and Operating Rates**: PVC factory inventory was 30.6 tons (-0.4), social inventory was 53.5 tons (+0.3), the calcium carbide - based PVC operating rate was 76.97% (+0.06%), the ethylene - based PVC operating rate was 74.12% (+2.12%), and the overall PVC operating rate was 76.11% (+0.68%) [1] - **Downstream Orders**: The pre - sales volume of production enterprises was 75.6 tons (+6.7) [1] 烧碱 - **Futures Prices and Basis**: The SH main contract closed at 2537 yuan/ton (-11), and the Shandong 32% liquid alkali basis was - 37 yuan/ton (+11) [1] - **Spot Prices**: Shandong 32% liquid alkali was quoted at 800 yuan/ton (+0), and Shandong 50% liquid alkali was quoted at 1300 yuan/ton (+0) [2] - **Upstream Production Profits**: The single - variety profit of Shandong caustic soda was 1509 yuan/ton (+0), the Shandong chlor - alkali comprehensive profit (0.8 tons of liquid chlorine) was 685.8 yuan/ton (+0.0), the Shandong chlor - alkali comprehensive profit (1 ton of PVC) was 179.78 yuan/ton (+10.00), and the Northwest chlor - alkali comprehensive profit (1 ton of PVC) was 1381.75 yuan/ton (+0.00) [2] - **Inventory and Operating Rates**: Liquid alkali factory inventory was 39.12 tons (+1.29), flake caustic soda factory inventory was 2.08 tons (-0.10), and the caustic soda operating rate was 82.50% (+0.60%) [2] - **Downstream Operating Rates**: The alumina operating rate was 86.23% (+1.02%), the East China printing and dyeing operating rate was 66.15% (+0.39%), and the viscose staple fiber operating rate was 89.82% (+0.30%) [2] Market Analysis PVC - The PVC market fluctuates with the macro - environment. Supply is abundant due to new production capacity and reduced maintenance losses. Downstream demand shows some improvement, but the market is affected by export policies and high inventory. Attention should be paid to pre - National Day replenishment sentiment and macro - environment impacts [3] 烧碱 - The 32% alkali price has been continuously decreasing, while the 50% alkali price has stabilized. Production may increase slightly as some maintenance enterprises resume operations. Demand from alumina is stable but with high - price delivery issues. The 50% alkali inventory reduction drives the Shandong caustic soda inventory decline, but the national liquid alkali inventory has increased. Attention should be paid to the 32% alkali sales situation, non - aluminum demand resilience, new alumina production, and downstream replenishment [3] Strategy PVC - **Single - side Trading**: Fluctuate widely with the macro - environment [4] - **Inter - delivery Spread Trading**: Wait and see [4] - **Inter - commodity Spread Trading**: None [4] 烧碱 - **Single - side Trading**: Wait and see [5] - **Inter - delivery Spread Trading**: Go long on the SH01 - 05 spread when it is low [5] - **Inter - commodity Spread Trading**: None [5]

Report Summary 1. Investment Ratings The report does not provide any industry investment ratings. 2. Core Views - **Chlor - Alkali Industry**: The caustic soda market has a high supply, and there is a possibility of price cuts. PVC is expected to stop falling and stabilize in the peak season from September to October, but the supply - demand contradiction is still difficult to ease [2]. - **Crude Oil Industry**: The current oil market shows a game between weak macro - expectations and tight spot fundamentals. It is likely to operate in a short - term range. It is recommended to focus on unilateral segment operations [24]. - **Methanol Industry**: The port inventory has decreased. The supply in the inland is at a relatively high level, and the demand is weak. The overall valuation is neutral, and the futures price fluctuates between high inventory and overseas gas - restriction expectations [29]. - **Urea Industry**: The urea futures market shows a weak and volatile pattern, mainly due to the deepening contradiction between high supply and weak demand. Although the cost provides some support, it is difficult to reverse the market downturn [37]. - **Polyolefin Industry**: PP production has decreased recently, and the inventory has declined. PE maintenance has reached a high point, and the upstream and mid - stream inventory has decreased. The pressure of inventory accumulation for 01 contracts is relatively large, which limits the upward space [43]. - **Polyester Industry**: PX supply increases, and the fourth - quarter supply - demand is expected to be weak. PTA supply is expected to shrink, and the short - term basis is supported. Ethylene glycol supply - demand is gradually weakening. Short - fiber support is strong in the short - term, and bottle - chip supply - demand is still loose [46]. - **Styrene Industry**: The supply of pure benzene is loose, and the demand support is limited. The overall supply - demand of styrene is relatively loose, and the port inventory has accumulated, so the price may be under pressure [53]. 3. Summary by Directory Chlor - Alkali Industry - **Prices**: From September 24th to 25th, the prices of some caustic soda products remained unchanged, while PVC prices showed a slight increase. The futures prices of some contracts decreased slightly [2]. - **Supply and Demand**: The caustic soda industry's operating rate decreased slightly, and the PVC total operating rate decreased by 5%. The demand for downstream products of caustic soda and PVC generally increased [2]. - **Inventory**: The inventory of liquid caustic soda in Shandong increased, while the inventory in some areas decreased. The PVC upstream factory inventory decreased slightly, and the total social inventory increased slightly [2]. Crude Oil Industry - **Prices**: On September 26th, Brent crude oil rose by 0.16%, WTI rose by 0.45%, and SC fell by 1.55%. The spreads of some contracts changed significantly [24]. - **Market Logic**: The market focus has shifted from geopolitical risks and tight supply to concerns about the macro - economy. The strong US economic data and the expected resumption of crude oil supply in the Kurdish region of Iraq put pressure on oil prices, while the supply interruption concerns caused by the Russia - Ukraine conflict support the price [24]. Methanol Industry - **Prices**: From September 24th to 25th, the prices of some methanol futures contracts increased slightly, and the spot prices of some regions decreased slightly [29]. - **Inventory**: The port inventory decreased, mainly due to increased demand for pick - up and a significant decrease in the unloading volume of imported ships [29]. - **Supply and Demand**: The supply in the inland is at a high level, and the demand is affected by the traditional off - season. The overall valuation is neutral [29]. Urea Industry - **Futures Market**: The futures prices of urea showed a weak and volatile pattern. The trading volume decreased, and the long - short ratio decreased slightly [34]. - **Upstream and Downstream**: The prices of upstream raw materials were relatively stable, and the prices of downstream products were mostly unchanged. The cross - regional spreads and basis differences changed to some extent [35][36][37]. - **Supply and Demand**: The daily output of urea was at a high level, the agricultural demand was in the off - season, and the industrial demand was dragged down by the decline in the compound fertilizer operating rate [37]. Polyolefin Industry - **Prices**: From September 24th to 25th, the prices of some polyolefin futures contracts and spot prices increased slightly, and the spreads between some contracts decreased significantly [43]. - **Inventory**: The inventory of PE and PP decreased. The operating rates of PE and PP devices increased slightly, and the downstream weighted operating rates also increased [43]. Polyester Industry - **Prices**: On September 25th, the prices of some polyester products changed. The prices of upstream raw materials such as crude oil and PX also fluctuated. The spreads and processing fees of related products changed [46]. - **Supply and Demand**: The supply of PX increased, the supply of PTA was expected to shrink, ethylene glycol supply - demand was gradually weakening, short - fiber supply was at a high level, and bottle - chip supply - demand was still loose [46]. Styrene Industry - **Prices**: From September 24th to 25th, the prices of upstream raw materials and styrene - related products changed to some extent. The cash flows of some products improved [49][50][51]. - **Inventory**: The pure benzene inventory in Jiangsu ports decreased, and the styrene inventory increased [52]. - **Supply and Demand**: The supply of pure benzene was loose, and the demand support was limited. The overall supply - demand of styrene was relatively loose, and the port inventory had accumulated [53].

上市企业：镇洋发展（603213）,鄂尔多斯（600295）,北元集团（601568）,华塑股份（600935）,氯碱化 工（600618）,新疆天业（600075）,中泰化学（002092）,君正集团（601216）,嘉化能源（600273）,滨 化股份（601678） 相关报告：智研咨询发布的《2025-2031年中国烧碱行业市场调查研究及未来趋势预测报告》 2020-2025年1-5月中国烧碱(折100％)产量统计图 数据来源：国家统计局，智研咨询整理 知前沿，问智研。智研咨询是中国一流产业咨询机构，十数年持续深耕产业研究领域，提供深度产业研 究报告、商业计划书、可行性研究报告及定制服务等一站式产业咨询服务。专业的角度、品质化的服 务、敏锐的市场洞察力，专注于提供完善的产业解决方案，为您的投资决策赋能。 根据国家统计局数据显示：2025年5月中国烧碱(折100％)产量为379万吨，同比增长2.3%；2025年1-5月 中国烧碱(折100％)累计产量为1869.7万吨，累计增长4%。 ...

Report Industry Investment Rating - Not provided in the given content Core Viewpoints - PVC's price fluctuates strongly with the macro - situation. The release of the "Building Materials Industry Steady Growth Work Plan 2025 - 2026" has improved the sentiment. However, the supply is abundant, the inventory is high, and the export outlook in the fourth quarter is weak. The supply - demand situation remains weak, but the macro - sentiment needs to be focused on [3]. - For caustic soda, the price of 32% caustic soda has been continuously adjusted downwards, while the price of 50% caustic soda has stabilized. The inventory in Shandong is being depleted. Attention should be paid to the demand resilience of the non - aluminum end during the peak season and the procurement situation of new alumina plants [3]. Summary by Relevant Catalogs Market News and Important Data PVC - Futures price and basis: The closing price of the PVC main contract is 4919 yuan/ton (+28), the East China basis is - 199 yuan/ton (-28), and the South China basis is - 109 yuan/ton (-28) [1]. - Spot price: The East China calcium carbide - based PVC is quoted at 4720 yuan/ton (+0), and the South China calcium carbide - based PVC is quoted at 4810 yuan/ton (+0) [1]. - Upstream production profit: The price of semi - coke is 690 yuan/ton (+0), the price of calcium carbide is 2890 yuan/ton (+0), the calcium carbide profit is 48 yuan/ton (+0), the gross profit of PVC calcium carbide - based production is - 657 yuan/ton (-155), the gross profit of PVC ethylene - based production is - 652 yuan/ton (+20), and the PVC export profit is 5.2 US dollars/ton (+9.8) [1]. - Inventory and operation rate: The in - factory PVC inventory is 30.6 tons (-0.4), the social PVC inventory is 53.5 tons (+0.3), the operation rate of PVC calcium carbide - based production is 76.91% (-3.38%), the operation rate of PVC ethylene - based production is 72.00% (-5.20%), and the overall PVC operation rate is 75.43% (-3.96%) [1]. - Downstream order situation: The pre - sales volume of production enterprises is 75.6 tons (+6.7) [1]. Caustic Soda - Futures price and basis: The closing price of the SH main contract is 2548 yuan/ton (+13), and the basis of 32% liquid caustic soda in Shandong is - 48 yuan/ton (-13) [1]. - Spot price: The price of 32% liquid caustic soda in Shandong is 800 yuan/ton (+0), and the price of 50% liquid caustic soda in Shandong is 1300 yuan/ton (+0) [2]. - Upstream production profit: The profit of a single variety of caustic soda in Shandong is 1509 yuan/ton (+0), the comprehensive profit of chlor - alkali in Shandong (0.8 tons of liquid chlorine) is 685.8 yuan/ton (+0.0), the comprehensive profit of chlor - alkali in Shandong (1 ton of PVC) is 169.78 yuan/ton (-10.00), and the comprehensive profit of chlor - alkali in the Northwest (1 ton of PVC) is 1381.75 yuan/ton (+20.51) [2]. - Inventory and operation rate: The inventory of liquid caustic soda factories is 37.83 tons (+2.15), the inventory of flake caustic soda factories is 2.18 tons (-0.03), and the operation rate of caustic soda is 81.90% (-1.50%) [2]. - Downstream operation rate: The operation rate of alumina is 86.23% (+1.02%), the operation rate of printing and dyeing in East China is 65.76% (+0.00%), and the operation rate of viscose staple fiber is 89.52% (+1.75%) [2]. Market Analysis PVC - Supply: Shaanxi Beiyuan plans to conduct maintenance, and some previously maintained units have resumed. The supply is still abundant with new production capacity coming on - stream [3]. - Demand: The downstream operation rate has increased, and the rigid demand for replenishment exists. The export orders and delivery volume have increased, but the export outlook in the fourth quarter is weak [3]. - Inventory: The social inventory continues to accumulate, and the absolute value of inventory is high [3]. - Price: The futures price is under pressure, but the impact of macro - sentiment needs to be focused on [3]. Caustic Soda - Supply: The production of previously maintained enterprises in Hubei and Inner Mongolia has resumed, and new production capacity in Tianjin Bohua has reached full production [3]. - Demand: The orders of alumina in Shandong are stable, but the high - price sales are not smooth. The inventory of 50% caustic soda has decreased, driving the inventory depletion in Shandong. Attention should be paid to the demand resilience of the non - aluminum end [3]. - Price: The price of 32% caustic soda has been continuously adjusted downwards, and the price of 50% caustic soda has stabilized [3]. Strategy PVC - Single - side: Fluctuate strongly with the macro - situation [4]. - Inter - delivery: Wait and see [4]. - Inter - variety: None [4]. Caustic Soda - Single - side: Wait and see [5]. - Inter - delivery: Go long on the SH01 - 05 spread when the price is low [5]. - Inter - variety: None [5].

1. Report Industry Investment Ratings No relevant content provided. 2. Core Views of the Reports Crude Oil - Overnight oil prices rose due to increased market concerns about supply tightening, especially the return of geopolitical risk premiums. The attacks on Russian refining and export facilities by Ukraine led to concerns about supply disruptions, verified by the strengthening of diesel crack spreads and traders' bets on price increases. Additionally, the unexpected decline in US crude inventories and lower gasoline and distillate inventories supported the demand side. The short - term support for oil prices has increased, but marginal supply increments will limit the rebound amplitude. It is recommended to conduct unilateral band operations, with WTI in the range of [60, 66], Brent in [64, 69], and SC in [471, 502]. For options, wait for opportunities to expand after volatility increases [2]. Polyester Industry Chain - **PX**: Supply is expected to be abundant due to negative short - term operations and postponed maintenance of some domestic PX plants. Demand is weak as PTA processing fees are low, new PTA plants' commissioning is delayed, and multiple PTA plants have maintenance plans. PXN is expected to compress, but short - term prices may be supported by geopolitical events and pre - holiday demand. Strategies include short - term long on PX11 or shorting after a rebound [7]. - **PTA**: Supply is expected to shrink as new plant commissioning is delayed and maintenance plans are in place. Pre - holiday restocking demand supports the short - term basis, but the rebound space is limited under weak expectations. Absolute prices may be supported by geopolitical factors. Strategies include short - term long on TA or shorting after a rebound, and rolling reverse arbitrage on TA1 - 5 [7]. - **Ethylene Glycol**: Short - term imports are expected to be low, and inventory is expected to decline. However, the terminal market is weak, and the basis fluctuates at a high level. In the long - term, supply will increase as new plants start up and demand seasonally declines, leading to inventory accumulation. Strategies include selling call options EG2601 - C - 4400 at high prices and reverse arbitrage on EG1 - 5 [7]. - **Short Fiber**: Supply is at a high level, and demand is in the peak season but with limited new orders. Prices are supported at low levels but lack upward momentum, following raw material fluctuations. Strategies are the same as PTA, and the processing fee on the disk oscillates between 800 - 1100 [7]. - **Bottle Chips**: Supply in September is lower than expected due to typhoons, and low prices and pre - holiday restocking demand support prices and processing fees. However, the supply - demand pattern remains loose. Strategies are the same as PTA, and the main - contract processing fee on the disk is expected to oscillate between 350 - 500 yuan/ton [7]. Urea - Urea futures rebounded on September 24 due to expectations of short - term supply contraction and technical repair. Shanxi Tianze plans to shut down some large - scale plants on October 7, which supports market sentiment. Although spot demand is weak, export orders provide some support [14][16]. Methanol - This week, both port and inland inventories decreased, partly due to typhoons in South China. Supply in the inland area is at a high level, and although unplanned maintenance has increased, some plants are expected to resume production in mid - September. The inventory pattern in the inland area is healthy, supporting prices. Demand is weak due to the traditional off - season. The overall valuation is neutral. The disk fluctuates between trading the reality of high inventory and weak basis and the expectation of overseas gas restrictions in the long - term [19]. Pure Benzene and Styrene - **Pure Benzene**: Supply is expected to remain high as some plants resume production or start producing, and there are maintenance plans. Demand is weak as most downstream products are in the red, and there are many maintenance plans for downstream plants in September - October. However, continuous de - stocking at ports may provide some support. Prices are driven by geopolitical and macro factors in the short - term. Strategies include BZ2603 following styrene and crude oil fluctuations [23]. - **Styrene**: Downstream demand is fair due to peak - season demand and pre - holiday stocking, but it is mainly for rigid needs. Supply is expected to decrease as overseas plants are under maintenance and exports are expected to increase. Port inventories are accumulating, pressuring prices. Strategies include shorting EB11 on price rebounds and widening the spread of EB11 - BZ11 [23]. Chlor - Alkali Industry - **Caustic Soda**: The market is weak. Supply is high, and the decline in alumina prices has squeezed the profit margins of domestic alumina enterprises, weakening the support for spot prices. Inventory in North China is rising, while in East China, it is falling due to tight supply and non - aluminum rigid demand. In Shandong, prices may continue to decline before the National Day holiday. Short - selling positions can be held [27]. - **PVC**: The market is also weak, and the supply - demand contradiction is difficult to resolve. Supply is expected to increase as many plants finish maintenance next week. Demand is limited as downstream product start - up rates are low, and buyers are resistant to high prices. Cost support is provided by rising calcium carbide prices and stable ethylene prices. PVC is expected to stop falling and stabilize during the September - October peak season [27]. Polyolefins - **PP**: Production has decreased recently due to heavy losses in PDH and external - propylene procurement routes, leading to increased unplanned maintenance and lower inventory. - **PE**: Maintenance has reached a peak, and the start - up rate is gradually increasing. Inventory in the upstream and mid - stream has decreased this week. More import offers from North America are emerging, and the supply rhythm and import offers need to be monitored. There is pressure on inventory accumulation for the 01 contract [31]. 3. Summaries by Relevant Catalogs Crude Oil - **Prices and Spreads**: On September 25, Brent rose 2.48% to $69.31/barrel, WTI fell 0.38% to $64.74/barrel, and SC fell 1.55% to 483.60 yuan/barrel. Some spreads, such as Brent M1 - M3, increased, while others like WTI M1 - M3 decreased [2]. - **EIA Data**: As of the week ending September 19, 2025, US crude production increased to 1350.1万桶/日, refinery utilization rate decreased to 93%, commercial crude inventory decreased by 60.7万桶, and gasoline and distillate inventories also decreased [9]. Polyester Industry Chain - **Upstream Prices**: Brent crude (November) rose to $69.31/barrel, CFR Japan naphtha rose to $606/ton, etc. [7]. - **PX - Related**: CFR China PX rose to $812/ton, PX - naphtha spread decreased to 120 [7]. - **PTA - Related**: PTA East - China spot price rose to 4525 yuan/ton, TA01 - TA05 spread decreased [7]. - **MEG - Related**: MEG port inventory decreased to 700,000 tons, and the arrival forecast decreased [7]. - **Downstream Products**: POY150/48 price decreased to 6600 yuan/ton, and polyester bottle - chip price rose to 5804 yuan/ton [7]. Urea - **Futures**: On September 24, the 01 contract rose 0.90% to 1673 yuan/ton, the 05 contract rose 0.64% to 1724 yuan/ton, and the 09 contract rose 0.63% to 1745 yuan/ton [14]. - **Spot**: Shandong (small - particle) urea price remained at 1610 yuan/ton, and FOB China (small - particle) remained at $418/ton [15]. - **Supply**: Domestic urea daily production increased to 19.56 million tons on September 26, and the production start - up rate increased to 83.59% [16]. Methanol - **Prices and Spreads**: MA2601 closed at 2351 yuan/ton on September 24, up 0.34%. The spread between MA2509 and MA2601 widened. The basis of Taicang decreased [19]. - **Inventory**: As of Wednesday, methanol enterprise inventory decreased to 31.994%, port inventory decreased to 149.2 million tons, and social inventory decreased to 181.2% [19]. - **Start - up Rates**: Upstream domestic enterprise start - up rate decreased slightly, while downstream external - MTO device start - up rate increased [19]. Pure Benzene and Styrene - **Pure Benzene**: CFR China pure benzene rose to $726/ton, and the spread between pure benzene and naphtha decreased. Port inventory decreased [23]. - **Styrene**: Styrene East - China spot price rose to 6910 yuan/ton, and the basis of EB10 decreased [23]. Chlor - Alkali Industry - **Prices**: On September 24, Shandong 32% liquid caustic soda's converted - to - 100% price remained at 2500 yuan/ton, and East - China calcium - carbide - based PVC market price remained at 4740 yuan/ton [27]. - **Supply**: Caustic soda industry start - up rate decreased to 85.4%, and PVC total start - up rate decreased to 75.4% [27]. - **Demand**: Alumina industry start - up rate increased to 83.7%, and PVC downstream product start - up rates increased slightly [27]. Polyolefins - **Futures**: On September 24, L2601 closed at 7142 yuan/ton, up 0.52%, and PP2601 closed at 6877 yuan/ton, up 0.51% [31]. - **Spot**: East - China PP拉丝 spot price remained at 6720 yuan/ton, and North - China LDPE film - grade spot price rose to 7070 yuan/ton [31]. - **Inventory**: PE enterprise inventory decreased to 45.8 million tons, and PP enterprise inventory decreased to 52.0 million tons [31]. - **Start - up Rates**: PE device start - up rate increased to 80.4%, and PP device start - up rate decreased to 74.9% [31].

Report Industry Investment Ratings No relevant content provided. Core Views Polyolefin - LLDPE and PP: Recently, PP production has declined due to significant losses in PDH and externally - sourced propylene routes, leading to increased unplanned maintenance and decreased inventory. PE maintenance has reached a peak, and the start - up rate is gradually rising. This week, the inventory of the upper and middle reaches has decreased, and there are more import offers from North America. Currently, there is a large inventory accumulation pressure on the 01 contract, which limits the upside space [2]. Methanol - The market is trading high inventory and fast loading in Iran. Coastal inventory has reached a record high, market sentiment has deteriorated, prices have weakened, and the basis has slightly weakened. In terms of supply and demand, inland supply is at a high level year - on - year. Although unplanned maintenance has increased recently, some devices are expected to resume production in mid - September. The inland inventory pattern is relatively healthy, which supports prices. On the demand side, affected by the off - season of traditional downstream industries, demand is weak. Port arrivals are still high, inventory accumulation is significant, and trading has weakened. In terms of valuation, upstream profits are neutral, MTO profits are strengthening, and traditional downstream profits are slightly strengthening, with the overall valuation being neutral. The port is continuously accumulating inventory significantly, and the import volume in September remains high. The futures price fluctuates between trading the current high inventory and weak basis and the expected overseas gas restriction in the distant future. Attention should be paid to the inventory inflection point [5]. Pure Benzene and Styrene - Pure Benzene: Recently, some pure benzene devices have restarted or produced products, and some maintenance plans have been postponed, so the supply is expected to remain at a relatively high level. On the demand side, most downstream products of pure benzene are still in a loss state, and some second - tier downstream products have high inventory. In September and October, both planned and unplanned production cuts in downstream styrene devices have reduced the demand support. The supply - demand expectation for pure benzene in September is still relatively loose, and the price driving force is weak. In the short term, the price is affected by geopolitical and macro - factors. - Styrene: Driven by the peak - season demand and pre - National - Day stocking of some factories, the overall demand for styrene downstream is okay, but the increase is limited. On the supply side, under the pressure of inventory and industry profits, more devices have shut down or reduced production. Some devices have reduced production due to accidents, and the export expectation of styrene has increased due to overseas device maintenance, so the supply is expected to decrease. Port inventory has accumulated, which may put pressure on the styrene price. In the short term, styrene may be affected by the oil price, geopolitical situation, and the alleviation of concerns about marginal supply increase [10]. Crude Oil - Overnight oil prices rose. The main trading logic is that the market's concerns about the current supply surplus have eased, and the geopolitical risk premium has resurfaced. Specifically, the oil export agreement of the Iraqi Kurds has reached a deadlock, eliminating about 230,000 barrels per day of new supply, which is the key trigger for the rebound after the previous continuous decline in oil prices and also provides support for the near - month spread. At the same time, Ukraine's attack on Russian refineries and the tough stance of NATO have magnified the supply interruption risk of refined oil products, pushed up the cracking spread, and affected the oil price from the sentiment and cost aspects. Overall, although the IEA report and other macro - factors still point to a supply surplus, in the short term, geopolitical factors have become the main pricing factor in the market, temporarily overriding the bearish expectation of potential inventory increase. In the short term, oil prices are expected to move within a range. It is recommended to mainly conduct high - selling and low - buying operations, with the operating range of WTI at [60, 66], Brent at [64, 69], and SC at [471, 502]. For options, wait for opportunities to widen the spread after the volatility increases [21][22]. Urea - The urea futures price has been weakly oscillating recently. The main logic is sufficient supply and insufficient demand support. Specifically, the daily industry output remains at a high level of over 200,000 tons, and new production capacity is about to be released, increasing the supply pressure. At the same time, agricultural demand has entered the off - season, and industrial demand has weakened due to the decline in the compound fertilizer start - up rate. Although there are some export port - collection orders, the overall impact is limited. The lack of market confidence and continuous inventory accumulation further suppress the futures price, and there is a lack of substantial positive driving factors [25]. PX, PTA, Ethylene Glycol, Short - fiber, and Bottle - chip - PX: Recently, the short - process capacity utilization at home and abroad has increased, and the maintenance of some domestic PX devices has been postponed. In addition, multiple PTA devices have maintenance plans. The supply - demand expectation for PX in the fourth quarter is further weakened. However, it may be supported by oil prices in the short term. - PTA: Due to the continuously low processing fees of PTA, the commissioning of new PTA devices has been postponed, and multiple PTA devices have maintenance plans. The spot basis has been continuously weak. In terms of absolute price, it is affected by the situation in Ukraine's attack on Russian oil facilities. - Ethylene Glycol: The supply - demand situation is gradually weakening. In the short term, the import expectation in September is not high, and the basis is oscillating at a high level. In the long term, the supply - demand expectation for ethylene glycol in the fourth quarter is weak, mainly due to the start - up of new devices and the seasonal decline in demand in the fourth quarter, and ethylene glycol will enter an inventory accumulation cycle. - Short - fiber: The short - term supply - demand pattern is weak. Recently, the short - fiber supply has remained at a high level. On the demand side, although it is the peak season, new orders are limited, and the peak season this year is not very prosperous. The short - fiber price has support at the low level, and the processing fee oscillates between 800 - 1100, with limited upward and downward driving forces. - Bottle - chip: Recently, some bottle - chip devices have restarted while some have shut down, and the overall production reduction intensity remains basically unchanged. With the downstream's low - price replenishment demand, the absolute price and processing fee of bottle - chip are supported, and the inventory has decreased. However, the upward space is limited, and attention should be paid to whether the production reduction of bottle - chip devices will further increase and the downstream follow - up situation [28]. Chlor - alkali (Caustic Soda and PVC) - Caustic Soda: The futures price continued to weaken yesterday. This week, the supply has increased, and the start - up rate of sample enterprises has increased. On the downstream side, the continuous decline in domestic and overseas alumina prices has continuously narrowed the profit margin of domestic alumina enterprises, and the support for the spot price is weak. Affected by the decline in the purchase price of the main downstream in Shandong and the cautious downstream purchasing, the inventory in the North China region has increased. In the East China region, the enterprises under maintenance and load - reduction have not resumed, the supply is tight, and the non - aluminum demand has followed up as a rigid demand, so the inventory has decreased. This week, in the Shandong market, due to the approaching National Day holiday, the short - term local caustic soda inventory needs time to be released. With the current high supply and the poor unloading of the main downstream, there is a possibility of further price cuts. It was previously recommended to take short positions, and the short positions can be held. - PVC: The futures price weakened yesterday, and the fundamental supply - demand contradiction is still difficult to resolve. On the supply side, many enterprises will end their maintenance next week, and the production is expected to increase. On the demand side, the start - up rate of downstream products has increased limitedly, and some have completed their inventory replenishment, so they are resistant to high prices and have average purchasing enthusiasm. On the cost side, the price of raw material calcium carbide continues to rise, and the ethylene price remains stable, providing bottom - line support for costs. It is expected that PVC will stop falling and stabilize during the peak season from September to October. Attention should be paid to the downstream demand performance [36]. Summary by Directory Polyolefin - **Prices and Spreads**: On September 23, compared with September 22, L2601 and L2509 closed down 0.35% and 0.50% respectively; PP2601 and PP2509 closed down 0.45% and 0.35% respectively. The spread between L2509 - 2601 decreased by 11.11%, and the spread between PP2509 - 2601 increased by 17.95%. The spot price of East China PP fiber decreased by 0.44%, and the spot price of North China LDPE film decreased by 0.28% [2]. - **Start - up Rates**: The PE device start - up rate increased by 2.97% to 80.4%, and the downstream weighted start - up rate increased by 1.78% to 42.9%. The PP device start - up rate decreased by 2.5% to 74.9%, the PP powder start - up rate increased by 4.1% to 37.5%, and the downstream weighted start - up rate increased by 1.2% to 51.5% [2]. - **Inventory**: PE enterprise inventory increased by 5.57% to 45.1 (unit not specified), and social inventory decreased by 2.45% to 54.7 million tons. PP enterprise inventory increased by 8.06% to 58.2 (unit not specified), and trader inventory increased by 14.74% to 19.3 million tons [2]. Methanol - **Prices and Spreads**: On September 23, compared with September 22, MA2601 closed down 0.21%, MA2509 closed up 0.17%, the MA91 spread increased by 60.00%, the太仓 basis decreased by 16.37%, the spot price of Inner Mongolia's northern line increased by 0.73%, the spot price of Luoyang, Henan decreased by 0.22%, and the spot price of Taicang port decreased by 0.44% [4]. - **Inventory**: Methanol enterprise inventory decreased by 0.61% to 34.048%, port inventory increased by 0.48% to 155.8 million tons, and social inventory increased by 0.28% to 189.8% [4]. - **Start - up Rates**: The upstream domestic enterprise start - up rate decreased by 0.12% to 72.66%, the overseas enterprise start - up rate in Shanghai decreased by 4.94% to 68.6%, the northwest enterprise sales - to - production ratio increased by 13.46% to 116%, the downstream acetic acid start - up rate decreased by 3.41% to 82.3%, and the downstream MTBE start - up rate increased by 1.37% to 63.8% [4][5]. Pure Benzene and Styrene - **Upstream Prices and Spreads**: On September 23, compared with September 22, Brent crude oil (November) increased by 1.6% to 67.63 dollars/barrel, WTI crude oil (October) increased by 1.2% to 63.41 dollars/barrel, CFR Japan naphtha increased by 0.4% to 596 dollars/ton, CFR Northeast Asia ethylene remained unchanged at 845 dollars/ton, CFR China pure benzene decreased by 0.7% to 723 dollars/ton, the spread between pure benzene and naphtha decreased by 5.6% to 125 dollars/ton, and the spread between ethylene and naphtha decreased by 1.0% to 247 dollars/ton [9]. - **Styrene - related Prices and Spreads**: The spot price of styrene in East China decreased by 1.0% to 6860 dollars/ton, EB2511 futures decreased by 0.8% to 6870 dollars/ton, the EB basis (10) increased by 33.3% to 24 dollars/ton, the EB10 - EB11 spread decreased by 112.5% to - 34 dollars/ton, the EB cash flow (non - integrated) decreased by 20.3% to - 337 dollars/ton, and the EB cash flow (integrated) decreased by 19.0% to - 552 dollars/ton [9]. - **Downstream Cash Flows**: The cash flow of phenol decreased by 7.6% to - 272 dollars/ton, the cash flow of caprolactam (single product) decreased by 4.7% to - 1885 dollars/ton, the cash flow of aniline increased by 14.0% to 514 dollars/ton, the EPS cash flow decreased by 13.6% to 190 dollars/ton, the PS cash flow decreased by 100.0% to - 60 dollars/ton, and the ABS cash flow increased by 247.8% to 34 dollars/ton [10]. - **Inventory**: The pure benzene inventory in Jiangsu ports decreased by 20.1% to 10.70 million tons, and the styrene inventory in Jiangsu ports increased by 17.3% to 18.65 million tons [10]. - **Industrial Chain Start - up Rates**: The domestic pure benzene start - up rate decreased by 1.2% to 78.4%, the domestic hydro - benzene start - up rate increased by 9.1% to 59.6%, the phenol start - up rate increased by 3.0% to 71.0%, the caprolactam start - up rate increased by 2.8% to 88.7%, the aniline start - up rate increased by 9.9% to 72.0%, the styrene start - up rate decreased by 2.1% to 73.4%, the downstream PS start - up rate decreased by 1.1% to 61.2%, the downstream EPS start - up rate increased by 1.2% to 61.7%, and the downstream ABS start - up rate decreased by 0.3% to 69.8% [10]. Crude Oil - **Prices and Spreads**: On September 24, compared with September 23, Brent crude oil increased by 1.59% to 67.63 dollars/barrel, WTI crude oil increased by 0.54% to 63.75 dollars/barrel, SC crude oil decreased by 1.55% to 483.60 dollars/barrel. The Brent M1 - M3 spread decreased by 33.82% to 1.37 dollars, the WTI M1 - M3 spread decreased by 49.65% to 0.72 dollars, and the SC M1 - M3 spread decreased by 33.33% to 1.80 dollars [21]. - **Refined Oil Prices and Spreads**: NYM RBOB increased by 0.46% to 200.82 dollars, NYM ULSD increased by 0.85% to 234.78 dollars, ICE Gasoil increased by 2.43% to 705.75 dollars, the RBOB M1 - M3 spread decreased by 27.94% to 7.61 dollars, the ULSD M1 - M3 spread decreased by 130.40% to - 0.76 dollars, and the Gasoil M1 - M3 spread decreased by 44.95% to 15.00 dollars [21]. - **Refined Oil Cracking Spreads**: The cracking spread of US gasoline increased by 1.10% to 20.59 dollars/barrel, the cracking spread of European gasoline increased by 1.15% to 18.86 dollars/barrel, the cracking spread of Singapore gasoline increased by 6.11% to 11.12 dollars/barrel, the cracking spread of US diesel increased by 0.14% to 33.19 dollars/barrel, the cracking spread of Singapore diesel increased by 0.86% to 18.74 dollars/barrel, the cracking spread of US jet fuel decreased by 8.80% to 24.13 dollars/barrel, and the cracking spread of Singapore jet fuel increased by 0.85% to 17.74 dollars/barrel [21]. Urea - **Prices**: The synthetic ammonia (Shandong) price increased by 0.91% to 2220 dollars/ton. The spot prices of small - particle urea in Shandong, Shanxi, and Guangdong decreased by 0.62%, 0.67%, and 0.56% respectively [25]. - **Spreads**: The Shandong - Henan spread decreased by 10 dollars to - 10 dollars/ton, the Guangdong - Henan spread decreased by 6% to 160 dollars/ton, the Shandong basis decreased by 20.00% to - 48 dollars/ton [25]. - **Downstream Products**: The prices of melamine (Shandong), compound fertilizer

Report Summary 1. Report Industry Investment Rating - Not provided in the given content 2. Core Views - PVC: The PVC market fluctuates with the macro - environment. Supply is abundant due to new capacity and some restarted plants. Although downstream demand has increased with more pre - sales, social inventory is rising, and export expectations are weakening in Q4. The market is in a weak supply - demand situation with potential for further profit compression [4]. - Caustic Soda: The spot price of 32% caustic soda has been decreasing, while the orders for 50% caustic soda are improving. Production may increase slightly as some plants resume operation. Demand support is wavering, but cost support remains, and the profit is at a medium level compared to the same period [4]. 3. Summary by Directory Market News and Important Data - **PVC** - Futures: The closing price of the main PVC contract is 4891 yuan/ton (- 47), with an East China basis of - 171 yuan/ton (+ 7) and a South China basis of - 81 yuan/ton (+ 17) [2]. - Spot: East China calcium - carbide - based PVC is priced at 4720 yuan/ton (- 40), and South China calcium - carbide - based PVC is 4810 yuan/ton (- 30) [2]. - Upstream Profit: The calcium - carbide profit is 48 yuan/ton (+ 0), the calcium - carbide - based PVC gross profit is - 657 yuan/ton (- 155), the ethylene - based PVC gross profit is - 652 yuan/ton (+ 20), and the PVC export profit is - 4.6 dollars/ton (- 0.1) [2]. - Inventory and Operation: Factory inventory is 30.6 tons (- 0.4), social inventory is 53.5 tons (+ 0.3), the calcium - carbide - based PVC operation rate is 76.91% (- 3.38%), the ethylene - based PVC operation rate is 72.00% (- 5.20%), and the overall PVC operation rate is 75.43% (- 3.96%) [2]. - Downstream Orders: The pre - sales volume of production enterprises is 75.6 tons (+ 6.7) [2]. - **Caustic Soda** - Futures: The closing price of the SH main contract is 2535 yuan/ton (- 69), and the basis of 32% liquid caustic soda in Shandong is - 35 yuan/ton (+ 69) [2]. - Spot: The price of 32% liquid caustic soda in Shandong is 800 yuan/ton (+ 0), and the price of 50% liquid caustic soda is 1300 yuan/ton (+ 30) [2]. - Upstream Profit: The single - product profit of caustic soda in Shandong is 1509 yuan/ton (+ 0), the comprehensive profit of chlor - alkali in Shandong (0.8 tons of liquid chlorine) is 685.8 yuan/ton (+ 0.0), the comprehensive profit of chlor - alkali in Shandong (1 ton of PVC) is 179.78 yuan/ton (+ 0.00), and the comprehensive profit of chlor - alkali in the Northwest (1 ton of PVC) is 1361.25 yuan/ton (- 20.00) [3]. - Inventory and Operation: The liquid caustic soda factory inventory is 37.83 tons (+ 2.15), the flake caustic soda factory inventory is 2.18 tons (- 0.03), and the caustic soda operation rate is 81.90% (- 1.50%) [3]. - Downstream Operation: The alumina operation rate is 86.23% (+ 1.02%), the printing and dyeing operation rate in East China is 65.76% (+ 0.00%), and the viscose staple fiber operation rate is 89.52% (+ 1.75%) [3]. Market Analysis - **PVC** - Supply: Shaanxi Beiyuan plans to conduct maintenance, and some previously maintained plants have restarted, with expected lower maintenance losses. Newly - commissioned plants are increasing, resulting in an abundant supply [4]. - Demand: Downstream pre - sales are increasing, and overall downstream operation has improved, but the trading atmosphere is average. Exports are increasing in the short - term but are expected to weaken in Q4 [4]. - Inventory: Social inventory is rising, and the absolute inventory level is high [4]. - Price: The futures price is under pressure due to high - level warehouse receipts and hedging [4]. - **Caustic Soda** - Supply: Some previously maintained plants in Hubei and Inner Mongolia have restarted, and new capacity in Tianjin Bohua has reached full production [4]. - Demand: Alumina orders in Shandong are stable, but high - price sales are difficult, and inventory is accumulating. Non - aluminum downstream operation is increasing, but there is a fear of high prices [4]. - Price: The price of 32% caustic soda has decreased, while the price of 50% caustic soda has stabilized [4]. - Profit: The profit is at a medium level compared to the same period, with cost support [4]. Strategy - **PVC** - Unilateral: Cautiously bearish [5] - Inter - month Spread: Sell the near - term contract and buy the far - term contract for V01 - 05 when the spread is high [5] - Inter - commodity Spread: None [5] - **Caustic Soda** - Unilateral: Wait - and - see [6] - Inter - month Spread: Buy the near - term contract and sell the far - term contract for SH01 - 05 when the spread is low [6] - Inter - commodity Spread: None [6]