美伊谈判未见实质性进展，丙烷对丙烯支撑仍存

1. Report Industry Investment Rating - Not provided in the given content 2. Core View of the Report - The current Iran situation is a crucial factor influencing the prices of olefin products. The market is closely watching the progress of the US - Iran peace talks. As the US has set harsh conditions and Iran has not accepted them, the situation remains in a "fighting while talking" stage. After the price of propylene declined, it entered a consolidation phase. From the fundamental perspective of propylene, the supply of raw - material propane has tightened again, increasing the expectation of PDH unit maintenance. The supply of propylene is expected to tighten further. On the demand side, downstream enterprises mainly replenish inventory at low prices, but some have reduced their production due to profit issues. In the short term, the supply - demand situation of propylene remains tight, and there is still support for its price before the Strait of Hormuz is open to navigation [2] 3. Summary by Relevant Catalogs I. Propylene Basis Structure - The report includes figures such as the closing price of the propylene main contract, the East China basis of propylene, the Shandong basis of propylene, the price difference between the propylene futures 05 - 06 contracts, the price difference between the propylene 05 - 07 contracts, and the market prices of propylene in East China, Shandong, and South China [6][11][14] II. Propylene Production Profit and Capacity Utilization - Figures cover the difference between propylene CFR in China and naphtha CFR in Japan, propylene capacity utilization, PDH production gross profit of propylene, PDH capacity utilization of propylene, MTO production gross profit of propylene, methanol - to - olefin capacity utilization, propylene naphtha cracking production gross profit, crude oil main refinery capacity utilization, the difference between South Korea FOB and China CFR, and propylene import profit [20][23][27] III. Propylene Downstream Profit and Capacity Utilization - It involves the production profit and capacity utilization of PP powder, propylene oxide, n - butanol, octanol, acrylic acid, acrylonitrile, and phenol - acetone [33][34][35] IV. Propylene Inventory - The report shows the in - plant inventory of propylene and the in - plant inventory of PP powder [56][57]