成本端支撑叠加供应收缩，或仍将偏强运行

1. Report Industry Investment Rating - No information provided in the report 2. Core Viewpoints of the Report - The polyolefin market is affected by the unstable Middle - East situation, with a significant increase in crude oil prices. The production profit of polyolefins is poor, and the cost - side drive is strong. Although there is a large new production capacity in recent years and the production capacity is abundant, imports are affected, and raw material supply is short, leading some producers to reduce production preventively, thus alleviating the supply pressure. After the holiday, the downstream start - up rate gradually increases, and demand recovers. In the medium term, the pressure of new production capacity is still high, and the pattern of supply exceeding demand remains unchanged. In the short - term, due to blocked imports and defensive load - reduction, the producer's operating rate decreases, supply tightens, and with the sharp increase in the prices of crude oil, LPG, and methanol, polyolefin prices may run strongly at a high level [10]. - For the PP single - side strategy, considering the large new PP production capacity and weak downstream demand, the medium - to - long - term trend of PP is relatively weak. However, due to the unstable Middle - East situation and the sharp increase in crude oil prices, the short - term PP price is strong. It is recommended to hold short positions on PP (temporarily on the sidelines) [13]. 3. Summary According to Relevant Catalogs 3.1 Fundamentals - Inventory: The expected inventory of Chinese polyethylene producers is about 590,000 tons, and the inventory is expected to rise. The expected commercial inventory of polypropylene is about 890,000 tons, which is lower than the current period [9]. - Supply: This week, due to the planned maintenance of new devices such as Jilin Petrochemical, Zhong'an United, Lanzhou Petrochemical, and Guangdong Petrochemical, and the non - restart of previously maintained devices, the expected total production in the next period is 662,800 tons, a decrease of 20,500 tons compared with the current total production. The capacity utilization rate of polypropylene is likely to decline [9]. - Demand: This week, with the concentrated release of demands such as spring plowing and preparation, grain packaging, and logistics express, the downstream start - up rates of PP and PE have increased [9]. - Industrial Chain Profits: The losses of oil - based PE and PP profits have expanded, the profits of ethylene - based PE and propylene - based PP are in the red, and the losses of PDH - based PP have also increased, indicating cost - side support [9]. 3.2 Futures and Options Strategies - Hold long positions with a light position [10]. 3.3 PP Single - Side Strategy - Strategy: Short PP (temporarily on the sidelines). As of March 5th, the price has risen significantly to 7,458 yuan/ton. The logic is that the new PP production capacity is large and downstream demand is weak, so the medium - to - long - term trend of PP is relatively weak. However, due to the unstable Middle - East situation and the sharp increase in crude oil prices, the short - term PP price is strong. It is recommended to wait and see [13]. 3.4 Industrial Chain Structure - The report presents the industrial chain structures of polyethylene and polypropylene, but no specific analysis content is provided [16][19] 3.5 Spot and Futures Markets - The report shows the price trends of L2505 and PP2505 contracts, as well as the basis trends of PE and PP [26][31] 3.6 Industrial Chain Profit Situation - The report shows the production profit trends of PE and PP, including oil - based, ethylene - based, propylene - based, PDH - based, and coal - based production profits, as well as import and export profits [34][41][46] 3.7 Inventory - The report shows the inventory trends of PE and PP, including producer inventory, trader inventory, port inventory, and coal - based inventory [55][61] 3.8 Supply Side - PE Production: The report shows the weekly production, start - up rate, and maintenance loss volume of PE, as well as the import volume. The plastic production capacity has maintained high - speed growth in the past five years, with an average annual growth rate of 12%. In 2025, the new production capacity was 5.43 million tons, and the production capacity base increased to 41.14 million tons, a year - on - year increase of 15.2%. In 2026, the planned production capacity of PE is 9.24 million tons, a year - on - year increase of 22.45%, but considering the poor production profit, the actual production volume may be about half [71][86][91] - PP Production: The report shows the weekly production, start - up rate, and maintenance loss volume of PP, as well as the import volume. PP production capacity has maintained high - speed growth in the past five years, with an average annual growth rate of 11%. In 2025, China's PP production capacity was about 4.555 million tons, and the production capacity base increased to 49.165 million tons, an increase of 10.2% compared with 2024. In 2026, the planned production capacity of PP is 9.9 million tons, a year - on - year increase of 20.1%, but considering the poor production profit, the actual production volume may be about half [79][86][97] 3.9 Demand Side - Downstream Start - up Rate: The report shows the downstream start - up rates of PE and PP, including the start - up rates of various sub - industries such as agricultural film, packaging film, blow - molding, PE pipes, plastic weaving, BOPP, injection molding, and PP pipes [107][112][117] - Export Volume: The report shows the export volume trends of PE and PP [126] - Plastic Products: The report shows the production volume of plastic products, the inventory of the rubber and plastic products industry, the year - on - year growth rate of monthly production of automobiles and home appliances, the export volume of home appliances, the domestic automobile production volume, and the Chinese automobile export volume [129][130][135]