Morning Market Briefing for Diethylene Glycol (DEG) – September 16, 2026

I. Key Points

1. Rising risk to Saudi crude oil supply and the continued stalemate in U.S.-Iran relations have driven up international crude prices.
2. This week, the average operating rate of domestic unsaturated polyester resin (UPR) plants was 32.5%, unchanged from the previous period.
3. On September 14, total shipments from two tank farms in Zhangjiagang amounted to 332 tons, an increase of 88 tons per day compared to the previous weekend's daily average. As of now, inventory at Changjiang International and Fubao tank farms stands at 3,800 tons.

Core Logic: Tensions between the U.S. and Iran continue to push up international crude prices, while diethylene glycol (DEG) faces a market downturn due to increased supply and weak demand.

II. Price Table

Notes:

1. Product prices are based on national standard premium-grade specifications.
2. Crude oil is priced in USD/barrel; other three products are priced in RMB yuan/ton.
3. All RMB prices listed above are ex-warehouse, tax-inclusive cash prices.
4. The change rate represents the period-over-period percentage change.

III. Market Outlook

According to Chempricehub news reported on September 16: Rising international crude prices have pushed bulk commodities higher. However, DEG remains constrained by weakening fundamentals. Recently, replenishment of domestic vessel cargo, combined with a small volume of long-haul ocean freight, has alleviated inventory pressure at major ports. Additionally, the market continues to trend downward under the influence of Middle Eastern vessel schedules for October.

Legend:

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