Overview

Diethylene Glycol (DEG) is a critical intermediate chemical widely used in the production of unsaturated polyester resins, polyurethanes, plasticizers, antifreeze formulations, coatings, and construction-related applications. Its pricing dynamics are closely linked to ethylene oxide feedstock trends, downstream construction and coatings demand, global trade flows, and logistical efficiency.

During the quarter ending September 2025 (Q3 2025), the global Diethylene Glycol market exhibited a broadly bearish to stable trend, driven by ample supply availability, muted downstream demand, and inventory overhang across key consuming regions. Despite region-specific nuances, DEG prices across North America, Asia-Pacific (APAC), and Europe remained under pressure, with limited upside potential amid cautious procurement behavior and ongoing macroeconomic uncertainty.

Diethylene Glycol Price Trends in North America (USA)

Diethylene Glycol Price Index Movement

In the United States, the Diethylene Glycol Price Index declined by 7.74% quarter-over-quarter in Q3 2025, reflecting a market environment characterized by ample domestic supply and subdued downstream demand. The price correction followed elevated inventory levels built earlier in the year, as domestic producers maintained stable operating rates amid weaker offtake from end-use sectors.

Average Diethylene Glycol Prices in Q3 2025

The average Diethylene Glycol price during the quarter stood at approximately USD 730.67 per MT, CFR Texas. Prices trended lower through the quarter, weighed down by cautious purchasing patterns, limited restocking interest, and competitive import offers from Asia and Europe, despite existing tariff frictions.

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Production Cost Trend and Feedstock Dynamics

The Diethylene Glycol production cost trend in the USA remained largely stable during Q3 2025. Ethylene oxide feedstock prices stayed flat, supported by steady ethylene supply and intact refining margins. Energy and transportation costs showed minimal volatility, preventing any significant cost-push pressure that could have supported higher DEG pricing.

Demand Outlook for Diethylene Glycol

The Diethylene Glycol demand outlook in North America remained moderate to weak. While resin and coatings segments continued to sustain baseline intake, demand from the construction sector remained tepid amid slower infrastructure starts and cautious private construction activity. Seasonal consumption patterns failed to provide meaningful uplift, limiting spot market momentum.

Trade, Logistics, and Market Challenges

The Diethylene Glycol Price Index remained under pressure from tariff friction, import logistics challenges, and a mid-year inventory build-up. Export demand softened further due to tariff-related constraints, while domestic manufacturers maintained adequate supply with restrained purchasing strategies. Market participants closely monitored port congestion and rail delays, which could cap sharp upside movement in DEG prices despite occasional logistical disruptions.

Diethylene Glycol Price Forecast – USA

The Diethylene Glycol price forecast for the US remains cautious heading into the next quarter. With inventories still ample and downstream demand lacking strong recovery signals, prices are expected to remain range-bound to slightly soft, barring unexpected feedstock disruptions or significant shifts in construction activity.

Diethylene Glycol Price Trends in Asia-Pacific (APAC)

Diethylene Glycol Price Index in South Korea

In South Korea, a key production and export hub in the APAC region, the Diethylene Glycol Price Index edged down marginally by 0.51% quarter-over-quarter in Q3 2025. This limited decline reflected steady market fundamentals, balanced supply conditions, and disciplined production strategies by regional manufacturers.

Average Diethylene Glycol Prices in APAC

The average Diethylene Glycol price during the quarter was approximately USD 648.33 per MT, FOB Busan. Pricing remained relatively stable compared to other regions, supported by efficient supply chains, competitive export pricing, and controlled inventory levels across major producers.

Spot Price and Production Cost Trends

Diethylene Glycol spot prices in APAC moved modestly, tracking stable production cost trends. Feedstock ethylene oxide prices showed limited volatility, while operational efficiencies and improved port handling minimized cost escalations. However, operational profitability at key producers remained under pressure due to rainfall-related disruptions and tariff uncertainties, particularly affecting logistics and export scheduling.

Diethylene Glycol Demand Outlook in APAC

The Diethylene Glycol demand outlook in APAC remained tepid, as construction, coatings, and resin sectors continued to face subdued activity. Weak property market sentiment in parts of the region limited fresh procurement, while buyers adopted a hand-to-mouth purchasing strategy to avoid inventory risks.

Trade Flows, Currency Effects, and Supply Chain Stability

The Diethylene Glycol Price Index in APAC reflected cautious buying behavior and currency fluctuations, particularly against the US dollar. Import pricing remained competitive, limiting any regional price escalation. Strong supply chain resilience and port efficiency supported stable DEG market conditions, preventing sharp price swings or excessive storage pressure.

Diethylene Glycol Price Forecast – APAC

The Diethylene Glycol price forecast in APAC remained conservative, with expectations of continued stability rather than growth. Export activity slowed during the quarter, contributing to softer turnover and price consolidation across regional markets. Near-term pricing is expected to remain steady to slightly soft, contingent on downstream demand recovery.

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Diethylene Glycol Price Trends in Europe

Diethylene Glycol Price Index in Germany

In Germany, the Diethylene Glycol Price Index recorded a sharp quarter-over-quarter decline of 9.23% in Q3 2025, reflecting oversupply conditions and weakening end-user demand. European markets faced persistent inventory pressure as consumption lagged behind steady production levels.

Average Diethylene Glycol Prices in Europe

The average Diethylene Glycol price during the quarter was approximately USD 777.33 per MT, CFR Hamburg. Despite higher absolute pricing compared to APAC, European DEG prices experienced notable downward corrections due to muted demand from construction, insulation, and coatings industries.

Production Cost and Feedstock Environment

The Diethylene Glycol production cost trend in Europe remained under pressure, driven by weak feedstock fundamentals and limited pricing power. Energy costs showed some stabilization, but this was insufficient to offset demand-side weakness and inventory overhang.

Demand Outlook and Purchasing Behavior

The Diethylene Glycol demand outlook in Germany and wider Europe pointed toward cautious restocking behavior. Construction activity remained sluggish, while manufacturers prioritized inventory optimization over fresh procurement. Buyers adopted conservative sourcing strategies, reinforcing bearish price sentiment throughout the quarter.

Logistics and Regional Market Dynamics

The Diethylene Glycol Price Index in Europe was influenced by logistics bottlenecks, particularly congestion along the Rhine-Hamburg corridor, which affected delivered costs and import parity pricing. While these challenges occasionally supported localized premiums, overall market sentiment remained weak due to ample availability.

Diethylene Glycol Price Forecast – Europe

The Diethylene Glycol price forecast for Europe indicates limited upside in the near term. Inventory overhang, subdued construction demand, and cautious downstream sentiment are expected to keep prices under pressure. However, Germany’s planned infrastructure measures could gradually improve demand fundamentals and enhance regional price resilience over the medium term.

Comparative Regional Outlook and Key Market Drivers

Across North America, APAC, and Europe, Diethylene Glycol prices in Q3 2025 were shaped by several common factors:

• Ample supply availability across all major regions
• Muted downstream demand, particularly from construction and coatings
• Stable to weak feedstock cost trends
• Inventory management and cautious buying strategies
• Logistical constraints influencing delivered pricing but not reversing bearish sentiment

While APAC demonstrated relative stability due to supply chain efficiency, Europe and North America experienced sharper price declines amid inventory pressure and softer consumption.

Conclusion: Diethylene Glycol Market Outlook Beyond Q3 2025

The Diethylene Glycol market for the quarter ending September 2025 remained under broad pressure, with price indices declining across major regions. Despite stable production costs and efficient supply chains in certain markets, weak downstream demand and inventory overhang limited any meaningful price recovery.

Looking ahead, Diethylene Glycol price forecasts remain cautious globally. A sustained improvement in construction activity, infrastructure spending, and coatings demand will be essential for reversing bearish trends. Until then, DEG prices are expected to remain range-bound with a slight downward bias, as market participants prioritize inventory control, cost efficiency, and disciplined procurement strategies.

Get Real time Prices for Diethylene Glycol (DEG) : https://www.chemanalyst.com/Pricing-data/diethylene-glycol-66