March 19th News: On March 19th, Dongying Hualian Petrochemical Co., Ltd. announced an upward adjustment in the latest propylene quotation. The ex-factory self-pickup price was raised by 440 yuan/ton to 8,473 yuan/ton. The 80,000-ton/year propylene plant is operating smoothly. Chempricehub analyzed propylene with a long-short score of 1.5. The article pointed out that Dongying Hualian Petrochemical Co., Ltd.'s propylene ex-factory self-pickup price was raised by 440 yuan/ton to 8,473 yuan/ton, reflecting tight spot market supply or increased demand. The stable operation of the plant eliminates the risk of supply disruptions, which is favorable for propylene spot prices. Combined with futures data, the closing price of propylene futures contracts (such as Zhengzhou Commodity Exchange 2605 contract) was 8,949 yuan/ton, with a change of +410 yuan, indicating a strong upward trend. The upward adjustment of spot quotations may strengthen optimistic sentiment in the futures market, supporting further increases in futures prices. It is expected that the short-term long-short impact will be positive.