On January 4, Sinopec North China offered no quotes for diethylene glycol (DEG). Tianjin Petrochemical’s 42,000 tons/year unit remained shut down, while Yanshan Petrochemical’s 80,000 tons/year unit has no restart plan and both units have been fully excluded from production capacity. PriceSeek analysis of DEG, with a long-short score: +1.5. The article notes that Tianjin Petrochemical’s 42,000 tons/year unit remains shut down, and Yanshan Petrochemical’s 80,000 tons/year unit has no restart plan and has been fully excluded from capacity, leading to a significant reduction in market supply. Sinopec North China’s lack of quotes further reflects tight supply. This is expected to push up spot prices of DEG and improve market sentiment. Score: +1.5 (moderate to significant positive impact). The removal of capacity may create a structural supply gap, but attention should be paid to changes in demand to confirm the sustainability of the impact.