Group 1 - The core focus of the petrochemical sector is currently on crude oil prices, which are influenced by geopolitical factors, including U.S. military actions in Iran and negotiations regarding the Strait of Hormuz [2][3] - This week, the Shenyin Wanguo first-level industry index for the petrochemical sector performed relatively well, closing at 2248.68 points, a decrease of 1.03% compared to last week [2][3] - The oilfield services sector showed the best performance within the petrochemical industry this week, with a price increase of 4.53% [2][3] Group 2 - Crude oil prices increased this week, with a decrease in U.S. crude oil inventories and an increase in refined oil inventories [3] - In the polyester segment, the price of polyester filament rose, leading to an expansion in price differentials, while the inventory days for polyester filament in Jiangsu and Zhejiang decreased, and the operating rate of weaving machines declined [3] - For olefins, the spot prices of sample polyolefins remained stable, with a decrease in inventory during the week [4]