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Diethyl Carbonate Pricing, Demand and Supply Overview
Diethyl Carbonate prices in Japan rose 2.7% in Q2 2026 to USD 1,920.00/MT from USD 1,870.00/MT in Q1, extending a sharp reversal after prices had spent most of 2025 under sustained downward pressure. Chinese prices, which had absorbed the steepest decline of any market tracked in this report through 2025, rose 2.8% to USD 1,460.00/MT, continuing to recover from structural domestic oversupply and aggressive producer competition. Globally, the average rose from USD 1,720.20/MT in Q1 to USD 1,767.80/MT in Q2, a 2.8% gain, following a jump of nearly 17 percent in Q1 alone. For H2 2026, a global average of USD 1,650.00-1,950.00/MT is expected, with rising ethanol and ethylene carbonate feedstock costs likely to keep this market firm.
Diethyl Carbonate, commonly abbreviated DEC, is a colorless, low-viscosity solvent produced through the transesterification of ethylene carbonate with ethanol, or via direct reaction of ethanol with carbon monoxide and oxygen. It serves as a critical electrolyte solvent component in lithium-ion battery formulations, prized for its low viscosity and ability to improve low-temperature battery performance, alongside use as a fuel additive, a coatings and adhesives solvent, and an intermediate in pharmaceutical and agrochemical synthesis. Ethanol and ethylene carbonate feedstock costs, lithium-ion battery electrolyte demand, and Chinese domestic capacity utilization are what drive prices in this market.
Diethyl Carbonate Price Forecast for 2026
The outlook for Diethyl Carbonate through H2 2026 stays firm, tracking rising ethanol and ethylene carbonate feedstock costs tied to the broader Strait of Hormuz-linked petrochemical cost environment. Resilient battery and coatings sector demand should continue supporting consumption, even as Chinese producers, having spent much of 2025 navigating structural oversupply, remain watchful of any renewed capacity-driven price pressure once the current feedstock-driven firming phase moderates.
The main upside risk is a further escalation of Middle East shipping disruptions affecting ethanol and ethylene carbonate feedstock costs, which could push prices higher than currently forecast. The main downside risk is a return to the structural Chinese oversupply conditions that drove prices sharply lower through most of 2025, which would cap or reverse the current recovery once the acute feedstock shock fades.
| Region | 2026 Price Range (USD/MT) | Outlook |
| Global Average | 1,650.00 - 1,950.00 | Rising feedstock costs keep this market firm |
| Japan | 1,820.00 - 2,050.00 | Strong battery electrolyte demand sustains the highest cost |
| United States | 1,780.00 - 2,000.00 | Steady coatings and adhesives demand supports continued firmness |
| Germany | 1,700.00 - 1,920.00 | Recovering industrial demand drives continued gains |
| China | 1,380.00 - 1,560.00 | Recovering from structural oversupply that weighed on 2025 |
For the Quarter Ending June 2026
Diethyl Carbonate Prices Q2 2026:
- Japan: USD 1,920.00/MT
- United States: USD 1,870.00/MT
- Germany: USD 1,800.00/MT
- China: USD 1,460.00/MT
Diethyl Carbonate Prices in Japan
Japanese Diethyl Carbonate prices averaged USD 1,920.00/MT in Q2 2026, the highest of any region tracked here, up 2.7% from USD 1,870.00/MT in Q1, as strong battery electrolyte demand continued supporting this market.
Why did the price of Diethyl Carbonate change in Q2 2026 in Japan?
Strong lithium-ion battery electrolyte demand, tied to Japan's substantial battery manufacturing base, kept this market firm even as elevated ethanol and ethylene carbonate feedstock costs continued supporting producer offers.
Diethyl Carbonate Prices in the United States
US prices averaged USD 1,870.00/MT in Q2 2026, up 2.7% from USD 1,820.00/MT in Q1, as steady coatings and adhesives demand kept this market firm.
Why did the price of Diethyl Carbonate change in Q2 2026 in the United States?
Steady demand from coatings, adhesives, and pharmaceutical intermediate applications kept US buyers active even as feedstock costs moved higher through the quarter.
Diethyl Carbonate Prices in Germany
German prices averaged USD 1,800.00/MT in Q2 2026, up 2.9% from USD 1,750.00/MT in Q1, as recovering industrial demand continued driving gains.
Why did the price of Diethyl Carbonate change in Q2 2026 in Germany?
Recovering industrial demand across German battery and specialty chemical manufacturing continued supporting this market, even as the pace of gains moderated from the sharp Q1 reversal.
Diethyl Carbonate Prices in China
Chinese prices averaged USD 1,460.00/MT in Q2 2026, the lowest of the four regions, up 2.8% from USD 1,420.00/MT in Q1, continuing to recover from the structural oversupply that had weighed on this market through most of 2025.
Why did the price of Diethyl Carbonate change in Q2 2026 in China?
Continued EV battery demand provided underlying support even as macroeconomic uncertainties and stagnant broader industrial activity had capped recovery ambitions earlier, with rising feedstock costs now adding further upward pressure to this recovering market.
For the Quarter Ending March 2026
Diethyl Carbonate Prices Q1 2026:
- Japan: USD 1,870.00/MT
- United States: USD 1,820.00/MT
- Germany: USD 1,750.00/MT
- China: USD 1,420.00/MT
Diethyl Carbonate Prices in Japan
Japanese prices surged 16.9% in Q1 2026 to USD 1,870.00/MT from USD 1,600.00/MT in Q4 2025, as ethanol and ethylene carbonate feedstock costs spiked following the broader Middle East-linked energy market disruption.
Why did the price of Diethyl Carbonate change in Q1 2026 in Japan?
Rising crude oil and naphtha costs, tied to the broader Middle East-linked energy market disruption, pushed ethanol and ethylene carbonate feedstock costs sharply higher, and that pressure flowed directly through to finished Diethyl Carbonate pricing across Japan's substantial battery supply chain.
Diethyl Carbonate Prices in the United States
US prices surged 17.4% in Q1 2026 to USD 1,820.00/MT from USD 1,550.00/MT in Q4 2025, tracking the broader feedstock cost spike.
Why did the price of Diethyl Carbonate change in Q1 2026 in the United States?
Elevated crude oil prices, following disruptions to global energy markets tied to the Middle East conflict, increased production costs for ethanol and ethylene carbonate feedstock, and that pressure flowed directly through to finished Diethyl Carbonate pricing.
Diethyl Carbonate Prices in Germany
German prices surged 16.7% in Q1 2026 to USD 1,750.00/MT from USD 1,500.00/MT in Q4 2025, reversing the structural decline that had characterized this market through most of 2025.
Why did the price of Diethyl Carbonate change in Q1 2026 in Germany?
The same ethanol and ethylene carbonate feedstock cost spike affecting the broader battery electrolyte solvent value chain pushed German production costs higher, reversing months of structural decline tied to global oversupply conditions.
Diethyl Carbonate Prices in China
Chinese prices surged 16.4% in Q1 2026 to USD 1,420.00/MT from USD 1,220.00/MT in Q4 2025, reversing the sustained downward pressure that had characterized this market for most of the prior year.
Why did the price of Diethyl Carbonate change in Q1 2026 in China?
China's DEC market had been under sustained downward pressure through most of 2025, with structural domestic oversupply and aggressive producer competition keeping prices falling despite resilient battery and coatings sector demand, before rising ethanol and feedstock costs tied to the broader energy market disruption reversed that trend sharply.
Quarterly Diethyl Carbonate Price Trends
Global Diethyl Carbonate prices declined steadily through most of 2025, with China's market under particularly sustained downward pressure from structural domestic oversupply and aggressive producer competition, before a sharp reversal took hold in Q1 2026 as rising ethanol and ethylene carbonate feedstock costs tied to the Middle East-linked energy market disruption pushed prices to their highest levels of the period.
| Quarter | Price (USD/MT) | QoQ Change | Direction |
| Q2 2026 | 1,767.80 | +2.8% | ↑ Rising |
| Q1 2026 | 1,720.20 | +16.9% | ↑ Rising |
| Q4 2025 | 1,471.80 | -1.5% | ↓ Falling |
| Q3 2025 | 1,494.20 | -2.0% | ↓ Falling |
| Q2 2025 | 1,524.20 | - | — Stable |
| Q3 2026 | In Progress | - | — In Progress |
What was Diethyl Carbonate Price in 2025?
Diethyl Carbonate declined across every market covered in this report through 2025, as structural domestic oversupply in China and aggressive producer competition kept export offers under sustained pressure globally, with China itself absorbing the steepest annual decline before a sharp reversal took hold once feedstock costs spiked in early 2026.
Diethyl Carbonate Prices in Japan in 2025
Japanese prices declined from about USD 1,750.00/MT in Q1 2025 to USD 1,600.00/MT by Q4, down roughly 8.6%, before the sharp Q1 2026 reversal that followed.
Diethyl Carbonate Prices in the United States in 2025
US prices declined from about USD 1,700.00/MT in Q1 2025 to USD 1,550.00/MT by Q4, down roughly 8.8%, tracking the broader global oversupply pressure through the year.
Diethyl Carbonate Prices in Germany in 2025
German prices declined from about USD 1,650.00/MT in Q1 2025 to USD 1,500.00/MT by Q4, down roughly 9.1%, tracking the same structural oversupply pattern evident globally.
Diethyl Carbonate Prices in China in 2025
Chinese prices declined from about USD 1,450.00/MT in Q1 2025 to USD 1,220.00/MT by Q4, down roughly 15.9%, the steepest annual decline of the four regions, as structural domestic oversupply and aggressive producer competition kept prices falling despite resilient battery and coatings sector demand.
How We Can Help
Expert Market Research: Your Source for Real-Time Diethyl Carbonate Price Intelligence
Expert Market Research tracks Diethyl Carbonate prices continuously across every major producing and consuming region, combining ethanol and ethylene carbonate feedstock cost data, lithium-ion battery electrolyte demand signals, and Chinese domestic capacity utilization trends into a single, regularly updated view of the market. Our team can help your procurement function benchmark current offers, plan purchases around the sharp reversal covered in this report, and build a defensible view of where this essential battery electrolyte solvent is headed next. Reach out to our team for a tailored briefing or a deeper look at any of the regional markets covered here.
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Key Questions Answered in the Report
It serves as a critical electrolyte solvent component in lithium-ion battery formulations, prized for its low viscosity and ability to improve low-temperature battery performance, alongside use as a fuel additive, a coatings and adhesives solvent, and a pharmaceutical and agrochemical synthesis intermediate.
The Q2 2026 global average was USD 1,767.80/MT, ranging from USD 1,460.00/MT in China to USD 1,920.00/MT in Japan.
The global average rose from USD 1,471.80/MT in Q4 2025 to USD 1,720.20/MT in Q1 2026, a jump of nearly 17 percent, and then to USD 1,767.80/MT in Q2, reversing a punishing 2025 decline.
China's DEC market was under sustained downward pressure through most of 2025, as structural domestic oversupply and aggressive producer competition kept prices falling despite resilient battery and coatings sector demand, with falling ethanol and maleic anhydride costs allowing producers to maintain profitability while cutting export offers.
The global average is expected in the USD 1,650.00-1,950.00/MT range, with rising feedstock costs likely to keep this market firm.
China holds the lowest cost among the regions tracked here given its history of structural oversupply, while Japan carries the highest cost given strong battery electrolyte demand.
This report is updated monthly. For real-time pricing intelligence, connect with the Expert Market Research team.
Ethanol and ethylene carbonate feedstock costs, lithium-ion battery electrolyte demand, and Chinese domestic capacity utilization.
China maintains the largest production capacity tied to its battery manufacturing supply chain, with Japan, the United States, and Germany also significant producing and consuming markets.
Buyers can monitor ethanol and ethylene carbonate feedstock cost trends and Chinese capacity utilization given their outsized influence on this market, time forward purchases around the quarterly breakdowns in this report, and benchmark supplier quotes against the tracked price ranges.
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