大炼化周报：成本端支撑长丝价格上涨-20250803

1. Report Industry Investment Rating No industry investment rating is provided in the report. 2. Core View of the Report The report is a weekly briefing on large - scale refining and chemical industries, presenting the latest data on key projects' spreads, various product prices, profits, inventories, and operating rates, as well as the performance of related listed companies [1][2]. 3. Summary by Directory 3.1 Big Refining Weekly Data Briefing - Stock Price and Market Value of Listed Companies: On August 1, 2025, the stock prices of companies like Hengli Petrochemical, Rongsheng Petrochemical, and others were reported, along with their total market values, and the data on their changes in stock prices over different time periods such as the past week, month, three - month, and one - year were presented. The profit forecasts for these companies from 2024 to 2027 were also provided [8]. - Oil Price and Refining Spread: The average price of international crude oil (Brent and WTI) this week increased compared to last week, with Brent at $71.2 per barrel (up 3.3%) and WTI at $68.0 per barrel (up 2.7%). The spreads of domestic and foreign key refining projects decreased, with the domestic spread at 2403.5 yuan/ton (down 3.4%) and the foreign spread at 1025.4 yuan/ton (down 7.0%) [8]. - Polyester Sector: The average prices of POY, FDY, and DTY increased this week, with POY at 6721.4 yuan/ton (up 142.9 yuan/ton), FDY at 6985.7 yuan/ton (up 171.4 yuan/ton), and DTY at 7907.1 yuan/ton (up 103.6 yuan/ton). The weekly average profits of POY, FDY, and DTY improved, but the inventory days increased, and the operating rate of filament decreased by 0.7 percentage points to 91.9%. The operating rate of downstream looms decreased by 0.1 percentage points to 55.5%, and the raw material inventory of weaving enterprises increased by 1.2 days to 10.4 days, while the finished - product inventory increased by 0.3 days to 30.7 days [2][10]. - Refining Sector: The prices of diesel and aviation kerosene in China and the United States decreased this week [2][10]. - Chemical Sector: The average price of PX this week was $854.9 per ton (up $5.6 per ton), and the spread compared to crude oil was $335.4 per ton (down $10.8 per ton), with an operating rate of 82.4% (unchanged) [2][10]. 3.2 Big Refining Weekly Report - 2.1 Big Refining Index and Project Spread Trends: It mainly shows the changes in the Shanghai - Shenzhen 300 Index, the petroleum and petrochemical index, and oil prices, as well as the weekly spreads of domestic and foreign large - scale refining projects [14][19]. - 2.2 Polyester Sector: It presents multiple data such as the prices, profits, inventories, and operating rates of PX, PTA, MEG, POY, FDY, DTY, polyester staple fiber, polyester bottle chips, and the operating rate of downstream weaving [24][33][38]. - 2.3 Refining Sector: It includes the prices, spreads, and related data of gasoline, diesel, and aviation kerosene in China, the United States, Europe, and Singapore [83][98][111][121]. - 2.4 Chemical Sector: It shows the prices, spreads, and related data of various chemical products such as polyethylene LLDPE, homopolymerized polypropylene, EVA foaming materials, EVA photovoltaic materials, styrene, PC, acrylonitrile, and MMA [131][132][139].