1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints - The current oil price is relatively undervalued, and the fundamental situation will support the current price. If the geopolitical premium re - emerges, the oil price will have room for growth. It is a good opportunity for left - hand side layout [2]. - For methanol, the short - term oversupply situation remains unchanged, but the downside space is expected to be limited. It is recommended to wait and see [4]. - For urea, the price is expected to move within a range at a low valuation. It is recommended to pay attention to going long at low prices [6]. - For rubber, it is advisable to maintain a bullish view in the medium - term. In the short - term, it is expected that the rubber price will be strong, and a bullish approach is recommended, buying on dips and exiting quickly [12]. - For PVC, given the situation of strong domestic supply, weak demand, and high valuation, and the weakening export expectation, it is recommended to pay attention to short - selling opportunities [14]. - For styrene, the BZN spread is expected to recover in the long - term. When the inventory starts to decline, the styrene price may rebound [18]. - For polyethylene, the price is expected to fluctuate upwards in the long - term [20]. - For polypropylene, it is recommended to go long on the LL - PP2601 contract at low prices [21]. - For PX, the valuation has support at the bottom, and it is recommended to follow the crude oil and look for long - buying opportunities on dips after the peak season arrives [23][24]. - For PTA, it is recommended to follow PX and look for long - buying opportunities on dips after the peak - season downstream performance improves [25]. - For ethylene glycol, the mid - term valuation has a downward pressure [26]. 3. Summary by Commodity Energy - **Crude Oil**: INE's main crude oil futures closed down 10.80 yuan/barrel, a 2.20% decline, at 481.00 yuan/barrel. Singapore's ESG weekly oil product data showed inventory increases in gasoline, diesel, fuel oil, and total refined oil products [1]. - **Fuel Oil**: High - sulfur fuel oil futures closed down 68.00 yuan/ton, a 2.40% decline, at 2760.00 yuan/ton; low - sulfur fuel oil futures closed down 113.00 yuan/ton, a 3.21% decline, at 3412.00 yuan/ton [1]. Chemicals - **Methanol**: On September 4, the 01 contract fell 4 yuan/ton to 2378 yuan/ton, and the spot price fell 8 yuan/ton with a basis of - 133. Domestic production has further increased, and coal prices have slightly declined. Overseas production has returned to a year - on - year high level, and the import pressure remains. The port MTO load has slightly increased, and the profit has continuously improved, but the traditional demand is still weak [4]. - **Urea**: On September 4, the 01 contract remained stable at 1714 yuan/ton, and the spot price was flat with a basis of - 14. The enterprise profit has further declined, the supply - side production has significantly decreased, and the demand is weak. The port inventory has continued to increase [6]. - **Rubber**: NR and RU fluctuated strongly. Due to heavy rain in Thailand in the next 2 - 10 days, the risk of floods has significantly increased, and the rubber price is likely to rise. As of September 5, 2025, the operating load of Shandong tire enterprises' all - steel tires was 58.70%, down 4.08 percentage points from last week and 0.22 percentage points from the same period last year. The operating load of domestic tire enterprises' semi - steel tires was 69.07%, down 5.5 percentage points from last week and 9.60 percentage points from the same period last year [9][11]. - **PVC**: The PVC01 contract rose 5 yuan to 4883 yuan. The cost side remained stable, the overall PVC operating rate was 76%, a 1.6% decline. The demand - side downstream operating rate was 42.6%, a 0.1% decline. The factory inventory was 31.2 (+0.6) million tons, and the social inventory was 89.6 (+4.4) million tons [14]. - **Styrene**: The spot price increased, and the futures price decreased, with the basis strengthening. The BZN spread is at a relatively low level in the same period, with a large upward adjustment space. The port inventory has continued to increase significantly. In the long - term, the BZN spread is expected to recover, and the styrene price may rebound when the inventory starts to decline [16][18]. - **Polyethylene**: The futures price decreased. The market is expecting favorable policies from the Chinese Ministry of Finance in the third quarter, and the cost side has support. The supply - side has only 400,000 tons of planned production capacity left, and the overall inventory is decreasing from a high level. The downstream average operating rate is 40.5%, a 0.20% increase [20]. - **Polypropylene**: The futures price decreased. The supply - side still has 1.45 million tons of planned production capacity, with relatively high pressure. The demand - side downstream operating rate has rebounded seasonally from a low level. The overall inventory pressure is high, and there is no prominent short - term contradiction [21]. - **PX**: The PX11 contract fell 130 yuan to 6680 yuan. The PX load in China was 83.3%, a 1.3% decline; the Asian load was 75.6%, a 0.7% decline. The PTA load was 72.8%, a 2.4% increase. In August, South Korea's PX exports to China were 376,000 tons, a year - on - year increase of 2,000 tons [23]. - **PTA**: The PTA01 contract fell 76 yuan to 4656 yuan. The PTA load was 72.8%, a 2.4% increase. The downstream load was 91%, a 0.7% increase. The social inventory (excluding credit warehouse receipts) on August 29 was 2.12 million tons, a decrease of 84,000 tons [25]. - **Ethylene Glycol**: The EG01 contract rose 26 yuan to 4357 yuan. The ethylene glycol load was 74.1%, a 1% decline. The downstream load was 91%, a 0.7% increase. The port inventory was 449,000 tons, a decrease of 51,000 tons [26].