On May 13 — Dalian Hengli's 600,000-ton BDO unit status: one 300,000-ton line is shut down; the other 300,000-ton line is operating stably with a catalyst replacement plan scheduled in May, and the BDO output is primarily supplied for downstream captive use. Chempricehub's assessment of 1,4-butanediol: Bullish-Bearish Score: 1.

Of Dalian Hengli's combined 600,000-ton 1,4-butanediol (BDO) capacity, 300,000 tons are currently idle, while the remaining 300,000 tons are expected to undergo catalyst replacement in May, with output mainly allocated for downstream captive use. This reduces the volume of freely circulating material in the market, providing a moderately supportive factor for spot 1,4-butanediol prices.