On January 9, Shandong Lihuayi Weiyuan Chemical raised the ex-factory listed price of propylene glycol by 50 yuan/ton to 5,300 yuan/ton. PriceSeek analysis of propylene glycol, with a long-short score of +1: Shandong Lihuayi Weiyuan Chemical's increase in the ex-factory listed price of propylene glycol by 50 yuan/ton to 5,300 yuan/ton indicates tightening supply or strengthening demand in the spot market, directly benefiting spot prices. This price adjustment reflects improved corporate confidence and strengthened cost support, with spot prices expected to maintain an upward trend in the short term. The score of +1.0 represents a generally positive impact, as the increase is moderate and stems from a single company's action, not reaching the level of a major event.