供应阶段性收紧，成本端仍有支撑

1. Report Industry Investment Rating - No relevant information provided 2. Core Viewpoints of the Report - Supply pressure in the propylene market is expected to ease temporarily as PDH device shutdown information continues to be released and there are maintenance plans for some devices. The market is trading on the expectation of tightened supply due to device maintenance, awaiting the fulfillment of the expected increase in maintenance in Q1 [2]. - On the demand side, downstream buyers are entering the market at low prices for essential purchases, and the overall downstream operating rate has rebounded. However, attention should be paid to the demand follow - up after the propylene price rises to a high level due to profit compression [2]. - The cost side is supported by the rebound of international oil prices due to geopolitical tensions and the strong propane prices. With the marginal improvement in supply - demand and sentiment boost, the propylene price continues to be strong. Future focus should be on cost changes and the fulfillment of PDH device maintenance [2]. - The strategy suggests cautious bottom - fishing long hedging. The supply - demand structure has slightly improved, and the short - term market is expected to remain strong, awaiting the fulfillment of marginal device maintenance [2]. 3. Summary According to the Directory 3.1 Propylene Basis Structure - The closing price of the propylene main contract is 6082 yuan/ton (+68), the East China spot price is 6250 yuan/ton (+200), the North China spot price is 5995 yuan/ton (+25), the East China basis is 168 yuan/ton (+132), and the North China basis is - 154 yuan/ton (-79) [1]. 3.2 Propylene Production Profit and Operating Rate - The propylene operating rate is 76% (+1%), China's propylene CFR - Japanese naphtha CFR is 229 US dollars/ton (+32), propylene CFR - 1.2 propane CFR is 65 US dollars/ton (+23), and the import profit is - 538 yuan/ton (-291) [1]. 3.3 Propylene Downstream Profit and Operating Rate - PP powder operating rate is 37% (-1.19%), production profit is - 25 yuan/ton (+15); epoxy propane operating rate is 74% (+0%), production profit is - 47 yuan/ton (+68); n - butanol operating rate is 83% (+2%), production profit is 521 yuan/ton (+14); octanol operating rate is 89% (+7%), production profit is 712 yuan/ton (-18); acrylic acid operating rate is 87% (+4%), production profit is 38 yuan/ton (-142); acrylonitrile operating rate is 79% (+0%), production profit is - 1190 yuan/ton (-26); phenol - acetone operating rate is 86% (+5%), production profit is - 916 yuan/ton (-140) [1]. 3.4 Propylene Inventory - The in - plant inventory is 44,690 tons (-3,100) [1].