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Diethylenetriamine, or DETA, is a polyamine produced by reacting ethylene dichloride with ammonia, yielding a versatile intermediate used predominantly as an epoxy resin curing agent. The largest demand pull comes from construction epoxy coating and flooring applications, followed by water treatment chelating agent use, and textile and pharmaceutical intermediate synthesis. EDC and ammonia feedstock costs, construction sector demand, and regional production capacity all feed into the price.
Global diethylenetriamine prices tracked close to the USD 1.80 to USD 2.00 per KG range projected for 2026, as EDC firming and construction demand supported the tone. US prices averaged USD 2.02 per KG in Q1 2026, up 5.2 percent from Q4 2025, as firmer EDC and ammonia feedstock costs from Middle East supply disruptions elevated production expenses while spring construction epoxy and water treatment procurement supported consistent buying. China's large production capacity kept it the most affordable source, while Germany remained the highest-cost reporting region.
DETA prices held a firm tone through August 2026, tracking close to the Q1 2026 levels across all tracked regions, as firmer EDC and ammonia feedstock costs and steady construction epoxy and water treatment demand continued to support the market.
The balance of supply and demand for diethylenetriamine through the rest of 2026 leans moderately firm. Ethylene dichloride feedstock costs firmed from Middle East ethylene supply disruptions. Construction epoxy and water treatment chelate demand is recovering with improving infrastructure investment activity.
The main upside risk is a sustained ethylene and EDC cost increase alongside accelerating construction epoxy and water treatment demand. The main downside risk is continued Chinese DETA capacity additions and weak European construction activity that limits global price recovery.
| Region | 2026 Price Range (USD/KG) | Outlook |
| Global Average | 1.80 - 2.00 | EDC firming and construction demand support the tone |
| United States | 1.94 - 2.14 | Steady epoxy and water treatment demand holds it firm |
| China | 1.32 - 1.52 | Large production capacity keeps it the most affordable |
| Germany | 2.28 - 2.48 | High feedstock and energy costs keep it the most expensive |
| India | 1.78 - 1.98 | Growing construction and water treatment holds a firm middle |
US diethylenetriamine prices averaged USD 2.02/KG in Q1 2026, up 5.2% from USD 1.92/KG in Q4 2025. Firmer EDC and ammonia feedstock costs from Middle East supply disruptions elevated production expenses. Spring construction epoxy and water treatment procurement supported consistent buying through the quarter.
Why did the price of Diethylenetriamine change in Q1 2026 in the United States?
Firmer EDC and ammonia feedstock costs from Middle East ethylene disruptions raised the DETA production cost floor. Spring construction epoxy curing agent and water treatment chelate procurement lifted buying. Pharmaceutical and textile sector demand provided additional consistent buying support.
Chinese diethylenetriamine prices averaged USD 1.38/KG in Q1 2026, up 6.2% from USD 1.30/KG in Q4 2025, the lowest among the tracked markets. Post-Lunar New Year construction epoxy and water treatment restocking lifted procurement. Firmer domestic EDC costs raised the production floor despite large domestic capacity.
Why did the price of Diethylenetriamine change in Q1 2026 in China?
Post-holiday construction epoxy and water treatment restocking lifted procurement. Firmer domestic EDC feedstock costs raised the production cost floor. Large domestic capacity kept China the most competitive source despite the quarterly recovery.
German diethylenetriamine prices averaged USD 2.35/KG in Q1 2026, up 5.9% from USD 2.22/KG in Q4 2025, the highest among the tracked markets. Higher EDC and energy costs elevated European production expenses. Recovering construction epoxy and industrial water treatment demand maintained consistent buying.
Why did the price of Diethylenetriamine change in Q1 2026 in Germany?
Higher EDC and energy costs elevated European DETA production expenses. Middle East ethylene disruptions added import cost premiums to EDC feedstock. Recovering construction epoxy curing agent and industrial water treatment demand maintained consistent procurement from European formulators.
Indian diethylenetriamine prices averaged USD 1.85/KG in Q1 2026, up 5.7% from USD 1.75/KG in Q4 2025. Growing construction epoxy and water treatment demand supported buying. Firmer import-linked EDC and ammonia costs raised the production floor through the quarter.
Why did the price of Diethylenetriamine change in Q1 2026 in India?
Growing construction epoxy curing agent and water treatment chelate demand lifted procurement. Firmer import-linked EDC and ammonia feedstock costs raised the production floor. Middle East freight premiums elevated the landed cost of imported DETA and EDC feedstock.
US diethylenetriamine prices averaged USD 1.92/KG in Q4 2025, recovering on the quarter. Autumn-winter construction epoxy and water treatment procurement and firmer EDC costs maintained the elevated production floor near USD 1.92/KG.
Why did the price of Diethylenetriamine change in Q4 2025 in the United States?
Autumn construction epoxy curing agent and water treatment procurement maintained consistent buying. Firmer EDC feedstock costs held the elevated production floor. Consistent sector demand held the market near USD 1.92/KG.
Chinese prices averaged USD 1.30/KG in Q4 2025, recovering on the quarter. Autumn construction and water treatment procurement and stable EDC costs supported the market near USD 1.30/KG.
Why did the price of Diethylenetriamine change in Q4 2025 in China?
Autumn construction and water treatment demand maintained buying. Stable EDC feedstock costs maintained the production cost floor. Large domestic capacity held the market near USD 1.30/KG.
German prices averaged USD 2.22/KG in Q4 2025, recovering on the quarter. Construction epoxy and industrial water treatment demand and firm EDC and energy costs held the production floor near USD 2.22/KG.
Why did the price of Diethylenetriamine change in Q4 2025 in Germany?
Construction epoxy and industrial water treatment demand maintained consistent buying. Firm EDC and energy costs held the elevated production floor. The market recovered from the Q3 dip near USD 2.22/KG.
Indian prices averaged USD 1.75/KG in Q4 2025, recovering on the quarter. Growing construction and water treatment demand and firmer import costs supported the recovery near USD 1.75/KG.
Why did the price of Diethylenetriamine change in Q4 2025 in India?
Growing construction epoxy and water treatment demand maintained consistent buying. Firmer import-linked EDC costs raised the production floor. The market recovered from the Q3 dip near USD 1.75/KG.
Global diethylenetriamine prices rose in Q2 2025 on the spring epoxy curing season before a brief Q3 dip and a consistent Q4 and Q1 2026 recovery. The average rose from USD 1.758/KG in Q1 2025 to USD 1.788/KG in Q2, eased to USD 1.772/KG in Q3, then firmed to USD 1.798/KG in Q4 and USD 1.900/KG in Q1 2026, a net gain of about 8.1% over the window. EDC feedstock cycles and construction and water treatment sector demand drove the pattern.
| Quarter | Price (USD/KG) | QoQ Change | Direction |
| Q1 2026 | 1.900 | +5.7% | ↑ Rising |
| Q4 2025 | 1.798 | +1.5% | ↑ Rising |
| Q3 2025 | 1.772 | -0.9% | ↓ Falling |
| Q2 2025 | 1.788 | +1.7% | ↑ Rising |
| Q1 2025 | 1.758 | - | - Stable |
| Q2 2026 | In Progress | - | - In Progress |
Diethylenetriamine prices firmed through 2025 with a brief Q3 seasonal softening. The global average opened at USD 1.758/KG in Q1 and closed near USD 1.798/KG in Q4, a full-year gain of about 2.3%. Spring construction epoxy season demand, firming EDC feedstock costs, and consistent water treatment and textile procurement supported the overall upward trend.
US prices firmed from about USD 1.85/KG in Q1 2025 to USD 1.92/KG by Q4, a gain of 3.8%. Consistent construction epoxy, water treatment, and pharmaceutical demand and firming EDC costs maintained the upward trend despite the brief Q3 softening.
Chinese prices fell from roughly USD 1.35/KG in Q1 2025 to USD 1.30/KG by Q4, a decline of 3.7%. Large domestic production capacity and competitive pricing maintained downward pressure. China held the lowest price level throughout the year.
German prices firmed from about USD 2.15/KG in Q1 2025 to USD 2.22/KG by Q4, a gain of 3.3%. Consistent construction epoxy and water treatment demand and firm EDC and energy costs supported the market. Germany maintained the highest price level.
Indian prices firmed from roughly USD 1.68/KG in Q1 2025 to USD 1.75/KG by Q4, a gain of 4.2%, the strongest in the dataset. Growing construction and water treatment demand drove the consistent firming through the year.
Expert Market Research: Your Source for Real-Time Diethylenetriamine Price Intelligence
Expert Market Research tracks diethylenetriamine prices continuously across every major producing and consuming region. The team traces causation through EDC and ammonia feedstock economics, construction epoxy and water treatment sector demand cycles, and regional production capacity. Contact Expert Market Research today for diethylenetriamine pricing data, bespoke market analysis, and strategic procurement advisory.
*While we strive to always give you current and accurate information, the numbers depicted on the website are indicative and may differ from the actual numbers in the main report. At Expert Market Research, we aim to bring you the latest insights and trends in the market. Using our analyses and forecasts, stakeholders can understand the market dynamics, navigate challenges, and capitalize on opportunities to make data-driven strategic decisions.*
Epoxy resin curing agent formulations for protective coatings, adhesives, and composite materials take the largest share. Water treatment as a chelating agent precursor, textile processing, paper manufacturing, and pharmaceutical intermediate synthesis also consume significant volumes.
The Q1 2026 average was USD 2.02/KG in the United States, USD 1.38/KG in China, USD 2.35/KG in Germany, and USD 1.85/KG in India. Germany remains the highest-priced market.
The global average rose from USD 1.758/KG in Q1 2025 to about USD 1.798/KG in Q4, a full-year gain of around 2.3%. A Q2 spring epoxy season uptick and brief Q3 dip characterised the year before the consistent H4 and Q1 2026 recovery.
A seasonal moderation in construction epoxy and coating procurement reduced the primary demand driver. Adequate EDC supply availability allowed buyers to moderate restocking, pressing prices to the seasonal low before the Q4 recovery.
The global average is expected in the USD 1.80 to 2.00/KG range for the rest of 2026, with continued firming as EDC feedstock costs stay elevated and construction epoxy and water treatment demand expands.
Germany sits highest on EDC and energy costs, the United States and India hold a firm middle on construction and water treatment demand, and China prices lowest on large domestic production capacity.
This report is updated monthly. For real-time pricing intelligence, contact the Expert Market Research team directly.
Prices respond mainly to EDC and ammonia feedstock costs, construction epoxy curing season cycles, and water treatment and textile sector demand. Middle East ethylene supply events and infrastructure investment cycles are key near-term signals.
North America, Europe, and Asia Pacific host the largest DETA production capacity tied to EDC and ammonia processing. Any ethylene or EDC cost shift ripples across markets within one to two quarters.
Buyers can use quarterly trends and forecasts to time epoxy and water treatment contracts around construction season cycles, build cover when EDC signals tightening, and monitor ethylene cost trends as the primary upstream feedstock signal.
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