供应端装置降负，丙烯现货反弹上行

Report Industry Investment Rating - Unilateral: Neutral; pay attention to the maintenance dynamics of upstream PDH units and the resumption of work in downstream industries [3] - Inter - period: None [3] - Inter - variety: None [3] Core View - On the supply side, with some PDH units restarting and some undergoing maintenance, the supply of propylene in Shandong is tightening again, and the expected shutdown of the PDH unit in East China supports the supply side, leading to a rebound in propylene spot prices. On the demand side, the high propylene price has narrowed the downstream profit margins, causing a decline in overall downstream开工率. Some downstream industries are less willing to purchase, which may restrict the upward space of propylene prices. On the cost side, there is an expectation of OPEC+ production increase, and the geopolitical situation is volatile, causing the crude oil price to fluctuate after a decline. The external propane price is firm recently, but its fundamentals are expected to weaken marginally [2] Summary by Directory 1. Propylene Basis Structure - Relevant figures include the closing price of the propylene main contract, the East China basis of propylene, the North China basis of propylene, the 01 - 05 contract of propylene, the market price of propylene in East China, and the market price of propylene in Shandong [7][10][12] 2. Propylene Production Profit and Capacity Utilization - Relevant figures include the difference between China's CFR propylene and Japan's CFR naphtha, propylene capacity utilization, PDH production gross profit of propylene, PDH capacity utilization of propylene, MTO production gross profit of propylene, methanol - to - olefins capacity utilization, propylene naphtha cracking production gross profit, and the capacity utilization of the main crude oil refinery [15][23][30] 3. Propylene Import and Export Profit - Relevant figures include the difference between South Korea's FOB and China's CFR, the difference between Japan's CFR and China's CFR, the difference between Southeast Asia's CFR and China's CFR, and propylene import profit [33][37] 4. Profit and Capacity Utilization of Propylene Downstream Industries - Relevant figures include the production profit and capacity utilization of PP powder, epoxy propane, n - butanol, octanol, acrylic acid, acrylonitrile, and phenol - acetone [39][40][54] 5. Propylene Inventory - Relevant figures include the in - plant inventory of propylene and the in - plant inventory of PP powder [64][65]