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1. Report Industry Investment Rating The report does not provide an industry investment rating. 2. Core Viewpoints of the Report - The prices of benchmark crude oils Brent and SC have been strengthening recently. The main contract of SC has risen to around 650 yuan per barrel, and Brent reached around $83 per barrel on Wednesday. The strength of refined oil has exceeded market expectations, with significant increases in the crack spreads of diesel and aviation kerosene. The natural gas price in Europe has continued to be strong due to the shutdown of Qatari gas fields and liquefaction plants [2]. - More refineries announced force majeure or production cuts on Wednesday, which will affect the pattern of the entire chemical and oil product markets in the next few months. Refined oil and chemicals are about to enter the peak spring maintenance period from March to May. Even though the 2026 maintenance is expected to be relatively light, the crack spreads of middle distillates have increased significantly due to factors such as reduced Russian exports. Currently, a forced heavy - maintenance is being implemented in global refineries, leading to a greater reduction in inventories of refined oil and chemicals. Even after the geopolitical conflict ends, the profit levels of refined oil and chemicals will be lifted [2]. - Crude oil leads the chemical industry to maintain a strong and volatile pattern [3]. 3. Summary by Relevant Catalogs 3.1 Market News and Main Logic of Each Variety 3.1.1 Crude Oil - Market News: The US President Trump said on March 3 that the US Navy would escort oil tankers passing through the Strait of Hormuz if necessary, and the US International Development Finance Corporation would provide political risk insurance and guarantees for maritime trade in the Gulf region. On March 4, the supply of oil through the "Friendship" oil pipeline to Slovakia remained suspended. The EIA data showed that the US crude oil inventory increased by 3.475 million barrels in the week ending February 27, gasoline inventory decreased by 1.704 million barrels, and refined oil inventory increased by 0.429 million barrels, with a refinery utilization rate of 89.2% [6]. - Main Logic: The upward trend of oil prices has slowed down, and the spreads of both domestic and foreign markets have continued to rise. The US crude oil has continued its seasonal inventory build - up, but the build - up rate has slowed down compared to last week. After the refinery utilization rate dropped from its high level, the inventory pressure of refined oil has decreased. If the low traffic volume in the Strait of Hormuz continues, it may lead to shipping difficulties and increased production suspension pressure for Middle - Eastern countries, posing an upward risk to oil prices. However, if there are signs of geopolitical easing or expectations of increased traffic volume, oil prices will still be under pressure. Currently, it is still a high - volatility period dominated by geopolitics, and price risks are high. Attention should be paid to the impact of high - volatility freight rates on the price difference between domestic and foreign markets [6]. - Outlook: Volatility. Geopolitical tensions have led to a reduction in crude oil supply. After the fermentation of geopolitical premiums, there is significant uncertainty in the later situation, and crude oil prices are expected to fluctuate [7]. 3.1.2 Asphalt - Market News: On March 4, 2026, the main asphalt futures closed at 3,660 yuan per ton, and the spot prices in East China, Northeast China, and Shandong were 3,430 yuan per ton, 3,760 yuan per ton, and 3,530 yuan per ton respectively [8]. - Main Logic: The US - Iran conflict has led to a sharp rise in crude oil prices, and asphalt futures prices have followed suit. The by - product nature of asphalt has caused the asphalt crack spread to decline during the sharp rise of crude oil. The market is currently focused on the progress of the geopolitical situation. As the asphalt - fuel oil spread has dropped sharply, the profit of asphalt refineries has deteriorated rapidly. Statistics show that the asphalt production in Hainan has increased significantly. The supply and demand of asphalt are both weak, and the inventory has started to accumulate in 2026, with the year - on - year growth rate changing from negative in 2025 to positive. Currently, the refinery inventory is low while the social inventory is high, and the refinery operation rate is low while the inventory continues to accumulate, reflecting the reality of tight raw material supply and poor demand. After the increase in the spot price in South China, the export window is expected to close, and the weakening of exports will intensify the domestic oversupply pressure. Against the background of negative growth in transportation fixed - asset investment, the pressure of asphalt inventory build - up is still high. After the sharp rise of fuel oil, the current asphalt futures price is undervalued compared to fuel oil and overvalued compared to rebar. The asphalt - fuel oil spread compresses when the geopolitical situation heats up and rebounds when the situation eases [8]. - Outlook: Volatility. The absolute price of asphalt is in an overvalued range, and the medium - to - long - term valuation is expected to decline [8]. 3.1.3 High - Sulfur Fuel Oil - Market News: On March 4, 2026, the main high - sulfur fuel oil contract closed at 3,888 yuan per ton [9]. - Main Logic: The US - Iran conflict has led to a sharp rise in fuel oil prices due to its high import dependence and strong geopolitical attributes. The tense situation in Iran not only affects the export expectations of Iranian fuel oil and Middle - Eastern fuel oil but also the supply expectations of Middle - Eastern natural gas. The energy crisis effect has driven the sharp rise of fuel oil prices, and the sharp rise in freight rates has also contributed to the rebound of fuel oil. Currently, attention should be paid to the progress of the US - Iran situation. As long as the geopolitical disturbance continues, fuel oil prices are likely to rise and difficult to fall. Once the US and Iran reach an agreement, it may have a significant negative impact on high - sulfur fuel oil. In the medium - to - long - term, the demand for Middle - Eastern fuel oil for power generation is gradually being replaced by natural gas and photovoltaics, which constitutes a medium - to - long - term negative factor for high - sulfur fuel oil. After the replacement of fuel oil for power generation in Saudi Arabia, Saudi Arabia is expected to increase fuel oil exports. The continuous decline of the asphalt - fuel oil spread shows that the geopolitical escalation has a significant impact on fuel oil prices [9]. - Outlook: Volatility. The long - term growth expectation of Venezuelan oil production exerts pressure on high - sulfur fuel oil. In the short - term, attention should be paid to the geopolitical situation in the Middle East [9]. 3.1.4 Low - Sulfur Fuel Oil - Market News: On March 4, 2026, the main low - sulfur fuel oil contract closed at 4,376 yuan per ton [10]. - Main Logic: The US - Iran conflict has led to a sharp rise in natural gas and crude oil prices, and low - sulfur fuel oil has followed the upward trend of crude oil. The market is currently focused on the progress of the geopolitical situation. Low - sulfur fuel oil has a strong main - product attribute. It faces negative factors such as a decline in shipping demand, replacement by green energy, and high - sulfur substitution. However, its current valuation is low, and its main - product attribute causes the crack spread to strengthen during the rise of crude oil prices. In terms of fundamentals, the export tax - refund rate of low - sulfur fuel oil has an advantage over refined oil, and the pressure of reducing oil and increasing chemicals is likely to be transmitted to low - sulfur fuel oil. Considering that the valuation of low - sulfur fuel oil is lower than that of refined oil, its valuation is expected to be difficult to further compress [10]. - Outlook: Volatility. Low - sulfur fuel oil is affected by the replacement of green fuels and the limited space for high - sulfur substitution, but its current valuation is low, and it fluctuates with crude oil [10]. 3.1.5 PX - Market News: On March 4, according to the CCF, the spot price of PX in April was negotiated at 1,024 - 1,038 US dollars per ton, and in May at 1,024 - 1,045 US dollars per ton. A spot deal in April was made at 1,030.5 US dollars per ton. The main PX contract closed at 8,088 (+104) yuan per ton, with a basis of 94 (-26) yuan per ton. The MOPJ closed at 721 (+18) US dollars per ton, and the PXN was 282 (-2) US dollars per ton. The PTA2605 closed at 5,694 (+86) yuan per ton, with a processing margin of 499 (+61) yuan per ton. A 770,000 - ton PX plant in South Korea started its scheduled maintenance on March 4 and is expected to restart in late April [11]. - Main Logic: The geopolitical situation has brought significant fluctuations to the price of raw material PX. The cost and sentiment have resonated. Some domestic PX plants have reduced production preventively, and the supply - demand expectation of PX is improving, gradually falling from a high - operation state. The implementation of the maintenance of individual plants in South Korea has been confirmed. The restart of multiple PTA plants in the downstream will provide short - term support for PX demand. With the decrease in supply and increase in demand, the short - term fundamentals of PX are slightly strong [11]. - Outlook: In the short - term, the PX price will fluctuate strongly under the resonance of cost support and market sentiment. The logic of going long on dips in the medium - term remains. The 05 - 09 spread of PX is expected to be in a positive spread position on dips, and the PXN is expected to be maintained in the range of [270, 330] US dollars per ton [11]. 3.1.6 PTA - Market News: On March 4, according to the CCF, the spot price of PTA was 5,605 (+80) yuan per ton, the spot processing margin was 245.6 (+35.5) yuan per ton, and the spot basis was - 46 (+7) yuan per ton. The main PTA contract closed at 5,694 (+86) yuan per ton, and the processing margin on the main contract was 396.4 (+17.9) yuan per ton. The sales of polyester yarn in Jiangsu and Zhejiang decreased overall, with an average sales rate of about 40% by 4 pm. The sales rates of several polyester factories were 60%, 100%, 0%, 25%, 75%, 40%, 40%, 0%, 10%, 100%, 0%, 40%, 30%, 30%, 60%, 80%, 50%, 80% respectively. The sales rate of domestic polyester chip sample enterprises was 16.06%, a decrease of 55.24% compared with the previous period [12]. - Main Logic: The US - Iran geopolitical situation is still the short - term focus of the market. The shipping in the Strait is blocked, forcing crude oil production cuts in the Middle East. International oil prices have driven the general rise of downstream chemical products. Under cost support, the center of PTA has moved up, but the overall increase is less than that of PX, resulting in a slight pressure on its processing margin. Overall, PTA will still fluctuate strongly following the upstream cost in the short - term. Attention should be paid to the situation of upstream refineries and its own plant changes [12]. - Outlook: It is expected that PTA will maintain a strong - fluctuating trend in the short - term. The 05 - 09 spread of TA is expected to maintain the positive spread logic in the short - term. The support at the lower price of TA has increased, and short - selling is not recommended in the short - term [12]. 3.1.7 Pure Benzene - Market News: On March 4, the closing price of the pure benzene 2604 contract was 6,761 yuan per ton, a change of +3.21%. The spot price of pure benzene in East China was 6,640 yuan per ton, a month - on - month increase of 280 yuan per ton; the FOB price of pure benzene in South Korea was 878 US dollars per ton, a month - on - month increase of 45 US dollars per ton; the FOB price of pure benzene in the US was 969.73 US dollars per ton, a month - on - month increase of 26.94 US dollars per ton. The price of Japanese CFR naphtha was 636.63 US dollars per ton, a month - on - month increase of 4.13 US dollars per ton; the spread between Chinese pure benzene and naphtha was 134 US dollars per ton, a month - on - month decrease of 11 US dollars per ton. The non - integrated profit of downstream styrene was 349 (+77) yuan per ton, the profit of caprolactam containing ammonium sulfate was 749.78 (+29.56) yuan per ton, the profit of phenol was - 50 (+327) yuan per ton, the profit of aniline was 1,687 (-87) yuan per ton, and the profit of adipic acid was - 153 (-76) yuan per ton [13][14]. - Main Logic: In the energy sector, the recent geopolitical situation has dominated the price trend of crude oil, and the escalation of the geopolitical conflict has led to the rise of crude oil and then pure benzene. In terms of supply and demand, the supply side is affected by oil price fluctuations, and refineries may have the expectation of defensive production cuts. On the demand side, on the one hand, the news of styrene maintenance and restart is intertwined, and the expectation of the main demand for pure benzene has changed. At present, the maintenance volume in March is greater than the restart volume. On the other hand, among the non - styrene downstream, except for caprolactam, which is still reducing production and has a low load, the other downstream products such as adipic acid, phenol, and aniline have performed well recently, with the operation rate and profit recovering simultaneously, which may reflect the recovery of terminal demand [14]. - Outlook: Volatility with an upward bias. The crude oil price fluctuates with an upward bias. Although the inventory pressure is still high, the fundamentals in Q1 have improved compared with Q4 [14]. 3.1.8 Styrene - Market News: On March 4, according to Longzhong data, the spot price of styrene in East China was 8,210 (+30) yuan per ton, and the basis of the main contract was 128 (0) yuan per ton. The price of pure benzene in East China was 6,730 (+90) yuan per ton, the price of Sinopec ethylene was 6,500 (+400) yuan per ton, the non - integrated cash - flow production cost of styrene was 7,987 (+165) yuan per ton, and the cash - flow profit was 113 (-165) yuan per ton. The price of PS in East China was 8,400 (+100) yuan per ton, the cash - flow profit of PS was - 200 (+100) yuan per ton; the price of EPS was 9,150 (+100) yuan per ton, the cash - flow profit of EPS was 400 (400) yuan per ton; the price of ABS was 10,150 (+200) yuan per ton, the cash - flow profit of ABS was 291.88 (+117.41) yuan per ton. The main contract EB2604 opened at 8,190 yuan, reached a high of 8,358 yuan, a low of 7,972 yuan, and closed at 8,213 yuan, an increase of 132 yuan compared with the previous trading day [15]. - Main Logic: In the energy sector, the escalation of the geopolitical conflict has led to the rise of crude oil and then styrene. In terms of cost, the supply - demand pattern of pure benzene is stable, and it is difficult to reduce inventory, so it has no effective driving force for styrene. On the supply side, according to Zhuochuang, the Carville plant in the US has stopped for maintenance, and in March in China, several plants such as Gulei, Hengli, Yanchang Refining and Chemical, and Zibo Junchen have new maintenance plans, and Xuyang plans to restart in late March, so the supply of styrene is expected to decrease. On the demand side, as the Spring Festival holiday ends, the operation rate of downstream industries has gradually recovered, and the overall demand is expected to improve. Recently, the profits of 3S have been repaired, and the downstream transactions have maintained a good rhythm. In the future, attention should be paid to the progress of EPS load increase and the resumption of work and production of terminals. Overall, styrene will return to inventory reduction in March, and the near - term fundamentals are acceptable. Attention should be paid to crude oil, plant maintenance and restart progress, and the demand after the festival [15]. - Outlook: Volatility with an upward bias. The crude oil price fluctuates with an upward bias. Driven by exports and with many plant maintenance plans, styrene may return to inventory reduction in March [15]. 3.1.9 Ethylene Glycol - Market News: On March 4, according to the CCF, ethylene glycol