On January 8, Shandong Huifeng Petrochemical Co., Ltd. announced the latest ex-factory price for propylene, which was raised by 30 yuan/ton to 5,930 yuan/ton. The downstream 150,000-ton/year PP unit was shut down on March 22, with the restart time yet to be determined. PriceSeek analysis: Propylene, long-short score: 0.5. The ex-factory price of propylene was raised by 30 yuan/ton to 5,930 yuan/ton, indicating tight supply or stronger cost support, which is a short-term positive for spot price increases. However, the shutdown of the downstream PP unit has reduced propylene demand, and the uncertain restart time brings potential pressure, resulting in a slight overall positive impact. Polypropylene, long-short score: 1.5. The uncertain restart time of the downstream PP unit reduces polypropylene supply, which is positive for spot prices. Combined with futures data (e.g., the main contract 2605 closed at 6,486 yuan/ton, up 80 yuan/ton), expectations of market supply shortages have strengthened. High open interest indicates active long positions, providing strong support for futures prices.