Diethylene Glycol Market Weekly Outlook (September 14, 2026)

I. Key Focus Points

1. Although tensions in the Middle East persist, diplomatic efforts by multiple parties to ease risks have led to a decline in international crude oil prices.
2. The average operating rate of domestic unsaturated polyester resin (UPR) plants this week was 32.5%, unchanged from the previous period.
3. On September 10, total shipments from two tank farms in Zhangjiagang amounted to 132 tons, a decrease of 120 tons compared to the previous day. As of now, combined inventory at Changjiang International and Fubao terminals stands at 2,700 tons.

Core Logic: Continued instability in U.S.-Iran relations has kept international crude oil prices elevated. Diethylene glycol (DEG) is under pressure due to weak demand, resulting in a one-sided downward market trend.

II. Price Table

Notes:

1. All product prices refer to national standard high-grade quality.
2. Crude oil prices are in USD/barrel; other products are priced in RMB per ton.
3. RMB prices listed above are cash-with-tax ex-warehouse prices.
4. Change rates represent period-over-period fluctuations.

III. Market Outlook

According to Chempricehub on September 14: The U.S.-Iran situation lacks clear direction, keeping international crude oil prices fluctuating at high levels. Currently, DEG is constrained by increased domestic supply and relatively insufficient demand, leading to recent weakness. In the short term, bearish fundamentals will remain the primary driver of continued gradual price declines, with limited impact from external factors.

Legend:

1. ↓↑ indicates significant volatility, highlighting data dimensions with changes exceeding 3%.
2. ↗↘ indicates narrow-range volatility, highlighting data with changes within 0–3%.