On April 27 - Xinjiang Guotai Xinhua's 200,000-ton BDO unit has been shut down since April 12 for burner replacement, with a tentative restart expected after the May Day holiday. Chempricehub evaluates 1,4-butanediol (BDO) with a multi-directional scoring of 1.5. The shutdown of Xinjiang Guotai Xinhua's 200,000-ton BDO unit, which began on April 12 for burner replacement, is expected to resume operations after the May Day holiday, leading to a reduction in market supply. The supply shortage could push up spot prices, particularly against a backdrop of stable demand, with the short-term supply disruption providing strong support for prices. Considering the unit's substantial capacity, the shutdown lasting two weeks with an imminent restart, the impact is assessed as a moderately positive factor, albeit not a major event, thus a score of +1.5 is assigned.