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知识图强,求实奉献,客户至上,合作共赢 | 纯不 -苯乙烯目报 | | | | | | | --- | --- | --- | --- | --- | --- | | 投资咨询业务资格:证监许可 [2011] 1292号 张晓珍 Z0003135 2026年1月30日 | | | | | | | 上游价格及价差 | | | | | | | 品种 单位 | 1月29日 | 1月28日 | 涨跌 | 涨跌幅 | | | 布伦特原油(3月) | 70.71 | 68.40 | 2.31 | 3.4% | | | 美元/桶 WTI原油 (3月) | 65.42 | 63.21 | 2.21 | 3.5% | | | CFR日本石脑油 | રેત્રેસ | 585 | 11 | 1.9% | | | CFR东北亚乙烯 | 700 | 700 | 0 | 0.0% | | | CFR中国纳本 | 781 | 763 | 18 | 2.4% | 美元/吨 | | 纯本-石脑油 | 185 | 178 | 7 | 3.9% | | | 乙烯-石脑油 | 104 | 115 | -11 | -9.6% | | | 纯苯(中石 ...

1. Report Industry Investment Ratings - Urea: ★☆☆ (One star, indicating a bullish/bearish bias, with a driving force for price increase/decrease, but limited operability in the market) [1] - Methanol: ★☆☆ [1] - Styrene: ☆☆☆ (White star, suggesting a relatively balanced short - term trend and poor market operability, with a wait - and - see approach) [1] - Polypropylene: ★☆☆ [1] - Plastic: ★★★ (Three stars, representing a clearer bullish/bearish trend and a relatively appropriate investment opportunity currently) [1] - PVC: ★☆☆ [1] - Caustic Soda: ★☆☆ [1] - PTA: ★☆☆ [1] - Ethylene Glycol: ★☆☆ [1] - Short - fiber: ★☆☆ [1] - Glass: ★☆☆ [1] - Soda Ash: ★☆☆ [1] - Bottle Chips: ★☆☆ [1] - Propylene: ★☆☆ [1] 2. Core Views - The overall chemical futures market is in a complex situation, with different products showing various trends and drivers. Some products are affected by supply - demand fundamentals, while others are influenced by policy, cost, and geopolitical factors. The market is generally in a state of shock, and different products have different investment opportunities and risks [2][3][5] 3. Summary by Relevant Catalogs 3.1 Olefins - Polyolefins - Both olefin and polyolefin futures contracts closed down in intraday trading. The supply of domestic olefins tightened due to individual plant shutdowns, but weak downstream demand restricted the buying pace. For polyethylene, inventory was smoothly reduced, but the overall downstream operating rate declined slightly, and demand support is expected to weaken. For polypropylene, although there is policy support, demand is weak as downstream factories have completed year - end orders, and the future demand has been pre - consumed [2] 3.2 Polyester - PX and PTA prices fluctuated in the morning and rose rapidly in the afternoon, mainly driven by sentiment due to a rumored unplanned maintenance of a PK plant in the second quarter. Before and after the Spring Festival, demand weakens, and there is limited upward driving force. In the second quarter, there are opportunities for PX processing margin to go long on dips and for positive spreads after the spread narrows, subject to downstream demand. For ethylene glycol, domestic new plants are put into production while overseas plants shut down, with expected supply increase at home and decrease abroad. There is a risk of inventory accumulation in the future, but the supply - demand situation may improve in the second quarter. Short - fiber is mainly driven by cost, and attention should be paid to downstream stocking rhythm around the Spring Festival. Bottle chips' processing margin has recovered, but long - term capacity pressure remains [3] 3.3 Pure Benzene - Styrene - The pure benzene futures market adjusted in shock, while the spot price continued to rise. Supply decreased due to refinery production cuts and reduced imports, and demand increased, leading to significant inventory reduction at East China ports. The short - term market is expected to be strong in shock. The styrene futures market consolidated in intraday trading. The current supply - demand balance is tight, with limited port arrivals and expected further inventory reduction. Domestic producers' sales are good, and exports provide some support [5] 3.4 Coal Chemical Industry - The methanol market continued to decline. Import arrivals decreased significantly, but demand decreased due to plant shutdowns and reduced loads, and the inventory reduction speed is expected to slow down. Although there is support from the expected significant reduction in imports in the first quarter, the short - term market is expected to be in a stalemate. Urea prices are weakly stable. Daily production has recovered, downstream demand has increased, and production enterprises are reducing inventory. In the short term, the market may decline slightly, but in the long term, it is likely to fluctuate strongly within a range [6] 3.5 Chlor - alkali Industry - PVC showed an intraday shock trend. The cost pressure of ethylene - based PVC decreased, while that of calcium carbide - based PVC increased. The operating rate of some enterprises decreased, and the export volume was affected by price changes. It is expected that the price center will rise, and the strategy is to go long on dips. Caustic soda continued to be weak, with high inventory pressure. Although the price of liquid chlorine is strong and the integrated profit is acceptable, the industry is generally in a loss, and the future production reduction needs to be continuously monitored [7] 3.6 Soda Ash - Glass - Soda ash is operating weakly. Although the weekly inventory has decreased slightly, the overall pressure is still large. Supply pressure is high in the long term, and downstream procurement sentiment is poor. The strategy is to go short on rebounds and wait and see when the price drops near the cost. Glass futures prices have declined. Affected by weather and approaching the holiday, inventory may accumulate. The industry is losing money, but there is a rumor of new production line ignition, and supply may increase slightly. In the long term, the industry needs to reduce capacity. When the futures price drops to around 1000 yuan, there may be a long - buying opportunity [8]

Report Industry Investment Ratings - Urea: Not specified - Methanol: Not specified - Styrene: Not specified - Propylene: Not specified - Plastic: ☆☆☆ (Indicating short - term multi/empty trend in a relatively balanced state, poor operability on the current disk, mainly for observation) [1] - PVC: Not specified - Caustic Soda: ★☆☆ (Indicating a bearish bias, with a downward - driving trend but poor operability on the disk) [1] - PX: Not specified - PTA: Not specified - Ethylene Glycol: Not specified - Short - fiber: ☆☆☆ (Indicating short - term multi/empty trend in a relatively balanced state, poor operability on the current disk, mainly for observation) [1] - Glass: Not specified - Soda Ash: ★☆☆ (Indicating a bearish bias, with a downward - driving trend but poor operability on the disk) [1] - Bottle Chip: Not specified Core Viewpoints - The overall chemical market shows complex trends, with different products facing various supply - demand situations and price trends. Some products face supply shortages, while others are affected by cost, demand, and policy factors [2][3][5] - There are risks such as demand shrinkage due to downstream profit pressure and supply - demand imbalance in the market, and at the same time, there are also potential investment opportunities in some products [2][5] Summary by Directory Olefins - Polyolefins - Propylene futures declined, with tight supply in the short term and limited support from the demand side due to high raw material costs. There is a risk of demand shrinkage [2] - Plastic and polypropylene futures were volatile. For polyethylene, inventory was smoothly reduced, but demand support is expected to weaken. For polypropylene, although there is policy support, demand has been pre - consumed, and the upward - driving force for supply - demand fundamentals is insufficient [2] Pure Benzene - Styrene - Pure benzene prices rose due to port de - stocking and refinery production cuts. The short - term market is expected to be volatile and strong [3] - Styrene futures rose. The market is in a tight - balance state, with expected port de - stocking, low enterprise inventory, and export support [3] Polyester - PX and PTA prices are expected to decline due to weak cost support and inventory accumulation. There may be investment opportunities in the second quarter, but it depends on downstream demand [5] - Ethylene glycol is affected by new domestic production and overseas shutdowns. There may be short - term improvement in the second quarter, but it is under long - term pressure [5] - Short - fiber enterprises have high loads and low inventory, but downstream orders are weak. The absolute price fluctuates with raw materials [5] - Bottle chip production has decreased, and the processing margin has improved, but there is still long - term capacity pressure [5] Coal Chemical Industry - Methanol prices continued to decline. Although there is port de - stocking, demand has decreased, and the market is expected to be volatile and stalemate. There is support from reduced imports in the first quarter [6] - Urea production has increased, and downstream demand has also risen. The short - term market may decline slightly, but it is likely to be strong within a range as agricultural demand starts [6] Chlor - alkali - PVC prices weakened. Production capacity utilization has declined, and cost has increased. It is expected to reduce production capacity this year, and the price center may rise [7] - Caustic soda is in a weak state, with high inventory pressure. The industry is generally in a loss, and the profit of chlor - alkali integration is expected to be compressed [7] Soda Ash - Glass - Soda ash prices fluctuated widely. Inventory pressure is still high, supply pressure is large, and downstream demand is weak. A high - short strategy is recommended [8] - Glass prices declined due to ignition plans. The industry is de - stocking, but there may be an increase in supply. The order situation is poor, and there may be seasonal inventory accumulation [8]

Report Industry Investment Ratings - Urea: ☆☆☆ [1] - Methanol: ★☆☆ [1] - Pure Benzene: Not rated explicitly [1] - Styrene: Not rated explicitly [1] - Ethylene: Not rated explicitly [1] - Plastic: ☆☆☆ [1] - PVC: Not rated explicitly [1] - Caustic Soda: ★☆☆ [1] - PX: ☆☆☆ [1] - PTA: Not rated explicitly [1] - Ethylene Glycol: Not rated explicitly [1] - Short Fiber: ☆☆☆ [1] - Glass: Not rated explicitly [1] - Soda Ash: ☆☆☆ [1] - Bottle Chip: Not rated explicitly [1] - Propylene: Not rated explicitly [1] Core Viewpoints - The chemical market shows complex and diversified trends, with different products affected by various factors such as supply - demand relationship, geopolitical events, and macro - news [2][3][5] - Each product has its own short - term and long - term price trends and investment opportunities, and investors need to make decisions based on specific product fundamentals [5][6][7] Grouped Summaries Olefins - Polyolefins - Olefin futures main contracts fluctuated and consolidated during the day. Multiple device changes had limited impact on overall supply, while demand was weak and market trading was light [2] - Plastic and polypropylene futures main contracts declined during the day. For polyethylene, the trading atmosphere improved, but the supply - demand imbalance continued. For polypropylene, short - term demand was weak due to tightened funds and slow new orders [2] Pure Benzene - Styrene - Pure benzene followed oil prices to fluctuate downward in the morning and rebounded in the afternoon. High imports and rising port inventories put pressure on the market. Consider long - term positive spreads in the mid - term [3] - Styrene futures main contract closed down. Downstream procurement was on - demand, and the spot trading atmosphere was poor after the holiday [3] Polyester - PX's weakness drove PTA prices down, and demand decline around the Spring Festival dragged down polyester raw materials. PTA's main driver was raw materials [5] - Ethylene glycol's production increase weakened the production - cut expectation. Although the arrival volume decline eased the inventory pressure, it was still under long - term pressure. Focus on short - term oil price fluctuations [5] - Short fiber enterprises had low inventories, but downstream demand was weak. The long - term supply - demand pattern was good. Bottle chip demand weakened, and it was mainly driven by cost [5] Coal Chemical Industry - Methanol main contract opened high and closed low. Coastal and inland spot trends diverged. High short - term inventory might suppress the market, but the mid - term import reduction was expected to lead to a strong market [6] - Urea prices continued to rise. Supply recovery was less than expected, and short - term supply was tight. The market might weaken later [6] Chlor - Alkali - PVC declined slightly. Supply increased, demand was low, and inventory pressure was high. The rebound height was expected to be limited [7] - Caustic soda dropped significantly. The industry was accumulating inventory, and the supply pressure was large. The rebound height was suppressed, and it was expected to find the bottom [7] Soda Ash - Glass - Soda ash inventory increased significantly after the holiday, and the futures price dropped. Supply increased, demand decreased, and long - term supply was expected to be in excess [8] - Glass showed a weak and fluctuating trend. Spot prices were low, production and sales were okay, and long - term capacity reduction was expected [8]

Report Industry Investment Ratings - Urea: ★☆☆ [1] - Methanol: ☆☆☆ [1] - Styrene: ★☆☆ [1] - Polypropylene: ★☆☆ [1] - Plastic: ★☆☆ [1] - PVC: ★★★ [1] - Caustic Soda: ☆☆☆ [1] - PX: ★★★ [1] - PTA: ★★★ [1] - Ethylene Glycol: ★★★ [1] - Short Fiber: ★★★ [1] - Glass: ★★★ [1] - Soda Ash: ☆☆☆ [1] - Bottle Chip: ★★☆ [1] - Propylene: ★★★ [1] Core Views - The two-olefin futures main contracts fluctuated widely during the day and operated weakly overall. The supply of plastics and polypropylene is relatively abundant, and the demand is weak, with the bear market pattern continuing [2]. - The benzene futures price fell after reaching 5,500 yuan/ton, and the supply and demand pressure may ease. The styrene futures main contract rose, but the supply increase may be greater than the demand increase [3]. - PX prices rose due to strong expectations, but the cost transmission resistance may gradually appear. Ethylene glycol is under long-term pressure, and the new supply concerns have limited impact on the current market [4]. - The raw materials are strong, squeezing the profits of downstream polyester products. Short fibers have a relatively good long-term supply and demand pattern, and bottle chips are driven by cost with overcapacity pressure [5]. - Methanol may operate weakly in the short term and has upward driving force in the medium and long term. The urea market continues to have a pattern of oversupply [6]. - PVC may operate at a low level, and caustic soda will continue to compress profits [7]. - Soda ash faces long-term oversupply pressure, and glass needs to continue to reduce production capacity to reach balance [8]. Summary by Directory Olefins - Polyolefins - The two-olefin futures main contracts fluctuated widely and operated weakly. The supply of plastics and polypropylene is relatively abundant, and the demand is weak, with the bear market pattern continuing [2]. Pure Benzene - Styrene - The benzene futures price fell after reaching 5,500 yuan/ton, and the supply and demand pressure may ease. The styrene futures main contract rose, but the supply increase may be greater than the demand increase [3]. Polyester - PX prices rose due to strong expectations, but the cost transmission resistance may gradually appear. Ethylene glycol is under long-term pressure, and the new supply concerns have limited impact on the current market [4]. - The raw materials are strong, squeezing the profits of downstream polyester products. Short fibers have a relatively good long-term supply and demand pattern, and bottle chips are driven by cost with overcapacity pressure [5]. Coal Chemical Industry - Methanol may operate weakly in the short term and has upward driving force in the medium and long term. The urea market continues to have a pattern of oversupply [6]. Chlor - Alkali - PVC may operate at a low level, and caustic soda will continue to compress profits [7]. Soda Ash - Glass - Soda ash faces long-term oversupply pressure, and glass needs to continue to reduce production capacity to reach balance [8].

Report Industry Investment Ratings - Propylene: ★☆☆ [1] - Plastic: ★☆☆ [1] - Polypropylene: ★☆☆ [1] - Pure Benzene: ☆☆☆ [1] - Styrene: ☆☆☆ [1] - PX: ☆☆☆ [1] - PTA: ☆☆☆ [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 chemical market shows mixed trends with different products facing various supply - demand and price situations. Some products are under pressure due to factors like over - supply or weak demand, while others are supported by factors such as production cuts or policy impacts [2][3][5] Grouped Summaries by Product Categories Olefins - Polyolefins - Propylene futures had a narrow - range consolidation. Production enterprises faced weak sales and rising inventory pressure, while downstream demand was weak due to more polypropylene device shutdowns [2] - Plastic and polypropylene futures had a weak consolidation. Polyethylene had supply pressure from high - load production and slow inventory digestion, along with weak downstream demand. Polypropylene had weak cost support and demand [2] Pure Benzene - Styrene - Pure benzene futures had a weak run. Although import pressure decreased slightly and there were expectations of supply - demand relief, it would mainly oscillate at a low level. A long - short spread positive spread could be considered on dips in the medium - term [3] - Styrene futures closed lower with a narrow - range decline. Cost support was insufficient, and the market was weak due to slower de - stocking and expected supply growth [3] Polyester - PX and PTA prices rose due to oil price rebound. PX is expected to be strong in the medium - term, and PTA's processing margin is expected to recover. Ethylene glycol rebounded but is still under long - term pressure. Short fiber's supply - demand seasonally weakened, and bottle chip's demand declined with over - capacity pressure [5] Coal Chemicals - Methanol futures prices rose. Ports were de - stocking, and the market might be turning. Urea prices rose significantly. Indian import tenders boosted the market, and production enterprises were de - stocking [6] Chlor - Alkali - PVC continued to rise under macro - mood influence. Supply was high, and demand was weak. It is expected to fluctuate with the macro - mood. Caustic soda oscillated strongly. Supply pressure was high, and it is also expected to follow the macro - mood [7] Soda Ash - Glass - Soda ash prices rose with high - level inventory and large supply pressure. It is expected to follow the macro - mood. Glass prices rose with high inventory and weak demand, and is expected to have a slightly strong oscillation in the short - term [8]

Report Industry Investment Ratings - Urea: Neutral (not explicitly stated in a clear rating system but based on the context of market analysis) [6] - Methanol: Consider buying the 5 - 9 month spread, but with caution [6] - Pure Benzene: Bearish bias, consider option configuration [3] - Styrene: Price supported but limited upside [3] - Polypropylene: Slight bearish due to supply increase and weak demand [2] - Plastic: Bearish due to increased supply and weak demand [2] - PVC: Follow cost - end changes, supply high and demand weak [7] - Caustic Soda: Weak operation, follow profit changes [7] - PX: Strong before new capacity, short - term supply - demand weakening [5] - PTA: Cost - driven, reduced inventory build - up expectation [5] - Ethylene Glycol: Short - term rebound expected but limited space [5] - Short Fiber: Price follows raw materials, no new investment pressure [5] - Bottle Chips: Cost - driven, long - term over - capacity pressure [5] - Soda Ash: Bullish short - term, oversupply long - term [8] - Glass: Limited downside, consider long - glass short - soda strategy [8] Core Views - The overall chemical market is complex, with different products showing various trends based on supply, demand, cost, and market sentiment factors. Some products have short - term bullish or bearish trends, while others face long - term challenges such as over - capacity [2][3][5] Summary by Related Catalogs Olefins - Polyolefins - Two - olefin futures contracts are fluctuating around the 5 - day moving average. Plastic and polypropylene futures are weak due to increased supply and weak demand. Polyethylene supply pressure increases with reduced maintenance and more shipments, and demand from downstream industries is weak. Polypropylene supply is expected to increase slightly, and demand is limited [2] Pure Benzene - Styrene - Pure benzene futures are weak, and the rebound is bearish. Consider option configuration. Styrene price is supported by tight supply - demand balance but has limited upside due to uncertain cost and demand support [3] Polyester - PX is strong before new capacity but short - term supply - demand is weakening. PTA is cost - driven with reduced inventory build - up expectation. Ethylene glycol has a short - term rebound expectation but limited space. Short fiber price follows raw materials, and bottle chips are cost - driven with long - term over - capacity pressure [5] Coal Chemicals - Methanol can consider buying the 5 - 9 month spread due to overseas production cuts and low valuation, but be cautious of weak reality. Urea supply is sufficient, and the market may return to a stalemate [6] Chlor - Alkali - PVC has good export to India but weak domestic demand, and it may follow cost - end changes. Caustic soda is in a weak operation due to high supply and low demand [7] Soda Ash - Glass - Soda ash is de - stocking and bullish short - term but oversupplied long - term. Glass has limited downside and can consider the long - glass short - soda strategy [8]

Report Industry Investment Ratings - Urea: ★☆☆ [1] - Methanol: ★☆☆ [1] - Pure Benzene: ★☆☆ [1] - Styrene: ★☆☆ [1] - Propylene: ★☆☆ [1] - Plastic: ★★★ [1] - PVC: ★☆☆ [1] - Caustic Soda: ☆☆☆ [1] - PTA: ☆☆☆ [1] - Ethylene Glycol: ★☆☆ [1] - Short Fiber: ☆☆☆ [1] - Glass: ななな [1] - Soda Ash: ☆☆☆ [1] - Bottle Chip: 女女女 [1] Core Views - The overall supply of the chemical industry is relatively loose, and short - term demand release cannot provide continuous driving force. The cost and macro - aspects lack clear guidance [2]. - Different chemical products face various supply - demand situations and price trends, with most products under downward pressure or in a state of uncertainty [2][3][4][5][6][7] Summary by Directory Olefins - Polyolefins - Propylene demand has improved temporarily, but overall supply is abundant, and short - term demand cannot drive continuously. Plastic and polypropylene futures closed down. Domestic supply of polyethylene increases, and demand shows weakness. For polypropylene, supply pressure increases, and demand is weak [2]. Pure Benzene - Styrene - Pure benzene price is weak, with a small decline in East China spot and stable Shandong quotes. There are short - term consolidation and medium - term negatives. Benzene - styrene maintains a tight supply - demand balance, but there are concerns about future supply - demand, and the price is under pressure [3]. Polyester - PX and PTA prices decreased. PX supply rises, PTA load drops, and there is a risk of inventory accumulation. Ethylene glycol supply has growth pressure, and demand is expected to weaken. Short - fiber demand may decline, and bottle - chip demand fades [4]. Coal Chemical Industry - Methanol price continues to fall, with high expected arrivals in November and weak downstream demand. Urea price drops, with a weak supply - demand situation and a high probability of price decline in the short term [5]. Chlor - Alkali - PVC price drops, with weak cost support, high supply, and low demand. Caustic soda fluctuates, with good liquid chlorine prices, but high inventory pressure [6]. Soda Ash - Glass - Soda ash price weakens slightly, with cost increases and high - pressure supply in the long term. Glass price drops, with cost increases, reduced profit, and low - inventory replenishment sentiment [7]

1. Report Industry Investment Ratings - Urea: Not specified in the report [1] - Methanol: Not specified in the report [1] - Pure Benzene: Not specified in the report [1] - Styrene: ★☆★, indicating a short - term multi/empty trend in a relatively balanced state with poor operability on the current disk [1][9] - Polypropylene: ★☆☆, representing a bullish bias but with limited operability on the disk [1] - Plastic: ★☆★, suggesting a short - term multi/empty trend in a relatively balanced state with poor operability on the current disk [1] - PVC: Not specified in the report [1] - Caustic Soda: ☆☆☆, indicating a bearish trend [1] - PX: ★☆★, suggesting a short - term multi/empty trend in a relatively balanced state with poor operability on the current disk [1] - PTA: ★☆★, suggesting a short - term multi/empty trend in a relatively balanced state with poor operability on the current disk [1] - Ethylene Glycol: ★☆☆, representing a bullish bias but with limited operability on the disk [1] - Short - fiber: ★☆★, suggesting a short - term multi/empty trend in a relatively balanced state with poor operability on the current disk [1] - Glass: Not specified in the report [1] - Soda Ash: ☆☆☆, indicating a bearish trend [1] - Bottle Chip: ★☆☆, representing a bullish bias but with limited operability on the disk [1] - Propylene: ☆☆☆, indicating a bearish trend [1] 2. Core Views - The prices of various chemical products are affected by multiple factors such as supply - demand relationship, cost, and market sentiment. For example, short - term oil price fluctuations affect the cost of some products, and supply - side changes and downstream demand trends determine the price trends of different products [2][3][5] - Different products have different price trends and investment suggestions. Some products are expected to have long - term downward pressure due to over - supply, while others may have short - term rebounds due to certain events but still face long - term challenges [5][6][7] 3. Summary by Related Catalogs 3.1 Olefins - Polyolefins - Propylene futures fluctuate narrowly. Short - term oil price increases support costs, but supply pressure is difficult to relieve due to expected increases in supply [2] - Plastic and polypropylene futures close slightly higher. For polyethylene, domestic supply increases, demand has both positive and negative factors, and cost and macro - news support the market. For polypropylene, supply is abundant, and downstream demand provides limited support [2] 3.2 Pure Benzene - Styrene - The price of traditional benzene is weak. Port inventory is decreasing, but mid - term import pressure is high. The focus is on port inventory accumulation [3] - Styrene futures fluctuate around the 5 - day moving average. Short - term oil price rebounds relieve cost pressure, but long - term price is suppressed by high inventory [3] 3.3 Polyester - PX and PTA prices are weak in the morning and rebound in the afternoon. Downstream demand is currently okay but is expected to weaken. Supply pressure is high. Based on the industry meeting news, there is an expectation of "anti - involution" [5] - Ethylene glycol production increases. The polyester industry chain rebounds, driving ethylene glycol up. Short - term negatives weaken, but mid - term inventory accumulation is expected [5] - Short - fiber has a good spot pattern, but may accumulate inventory again. Bottle - chip demand is weak, and long - term pressure comes from over - capacity [5] 3.4 Coal Chemical Industry - Methanol futures remain at a low level. Port inventory increases slightly, and the market is likely to maintain low - level fluctuations [6] - Urea price increase lacks momentum. Supply - demand imbalance persists, but there may be a phased rebound at low prices [6] 3.5 Chlor - alkali - PVC price rises slightly at a low level. The supply - demand pattern is weak, and it may operate in a bottom - range [7] - Caustic soda price fluctuates at a low level. Supply pressure is high, and downstream demand is average, so the price is expected to remain low [7] 3.6 Soda Ash - Glass - Soda ash price fluctuates strongly. Cost increases, supply is high, and it is recommended to be cautious when short - selling near the cost of traditional soda ash [8] - Glass price fluctuates narrowly. Inventory is increasing, and the price decline may be limited due to low valuation [8]