April 21 - Shaanxi Black Cat's 60,000-ton BDO unit underwent maintenance starting April 10 and is scheduled to restart by the end of April, with no spot quotations available. Chempricehub's analysis of 1,4-butanediol (BDO) assigns a bullish-bearish score of 1. The maintenance of Shaanxi Black Cat's 60,000-ton BDO unit since April 10, with a planned restart by the end of April, has led to reduced supply. The absence of spot quotations indicates tight market supply, which is expected to support spot prices. Short-term supply shortages may drive prices higher. However, the imminent restart of the unit (by the end of the month) limits the extent of the positive impact, resulting in a rating of moderate bullishness.