On January 6, some domestic BDO production units were shut down: Xinjiang Lanshan Tunhe's Phase I 100,000-ton BDO unit is currently shut down; the Phase II 104,000-ton unit was shut down on January 6 for catalyst replacement, expected to resume in 7–10 days; the Phase III 104,000-ton unit is operating stably. PriceSeek analysis of 1,4-butanediol, Bull-Bear Score: +1.5. The article reports that Xinjiang Lanshan Tunhe's Phase I and Phase II BDO units are shut down, with a total shutdown capacity of 204,000 tons, accounting for approximately 66% of the company's total capacity. Among these, the Phase II shutdown is temporary (expected to resume in 7–10 days). The significant reduction in supply will lead to market tightness. Against the backdrop of stable demand, it is expected that the spot price of 1,4-butanediol may rise in the short term. Therefore, a Bull-Bear Score of +1.5 is assigned, indicating a position between moderate and significant positive impact.