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Polyethersulfone (PES) prices firmed across the major markets through 2025 and carried that momentum into early 2026. In Germany, a key European source, the average climbed from USD 12.45/KG in the first quarter to USD 13.10/KG by the fourth, a rise of about 5.2% as resilient filtration and medical demand met tight specialty supply. PES is a high-performance sulfone-based engineering thermoplastic, prized for heat resistance, hydrolytic stability, and toughness. The largest pull comes from water-treatment and biopharma membranes, followed by medical devices, aerospace and electronics components, and demanding automotive parts. Its price moves with a distinct set of drivers. Sulfone feedstock costs, energy tariffs at producing sites, specialty capacity discipline, and the strength of membrane and medical demand all feed into it. These forces sustained the firm tone that ran into 2026.
The balance of supply and demand for PES through the rest of 2026 leans modestly to the upside. Producer cost floors are firm, held up by steady sulfone feedstock values and by elevated freight after the mid-year disruption around the Strait of Hormuz raised shipping and insurance costs on east-west routes. Demand is growing rather than flat, led by single-use bioprocessing, water-treatment membranes, and a steady stream of medical and electronics applications. The market looks set for gradual gains rather than a sharp move. The main upside risk is a feedstock or supply squeeze that tightens an already snug specialty market. The main downside risk is faster capacity additions in Asia, where new volumes could ease tightness and slow the climb in prices.
| Region | 2026 Price Range (USD/KG) | Outlook |
| Global Average | 12.80 - 13.60 | Modest rise on tight specialty supply and growing membrane demand |
| Germany | 13.20 - 14.10 | Premium grades and firm European biopharma demand support higher levels |
| United States | 12.70 - 13.50 | Aerospace and medical demand sustain firm, disciplined pricing |
| China | 11.10 - 12.00 | Lower-cost capacity keeps the region the most competitive source |
| Japan | 13.90 - 14.90 | High-grade electronics and medical demand frame the premium end |
German polyethersulfone prices averaged USD 13.45/KG in Q1 2026, up 2.7% from USD 13.10/KG in Q4 2025. Firm sulfone feedstock costs and steady demand from European membrane and biopharma makers lifted offers, and producers held premium grades tight. Higher freight on import routes reduced competition from offshore material, letting local sellers pass cost increases through to contract buyers.
Why did the price of Polyethersulfone change in Q1 2026 in Germany?
Firm feedstock costs and tight premium-grade supply raised the production floor. Steady biopharma and membrane demand absorbed available volumes, sustaining the regional climb.
US polyethersulfone prices averaged USD 12.90/KG in Q1 2026, a 2.8% rise from USD 12.55/KG in Q4 2025. Aerospace and medical-device demand stayed healthy, and specialty producers kept output disciplined. Distributors rebuilt stocks after a busy end to 2025, and the threat of higher import freight discouraged low-priced offshore offers, all of which firmed the market through the quarter.
Why did the price of Polyethersulfone change in Q1 2026 in the United States?
Healthy aerospace and medical demand met disciplined specialty supply, lifting the floor. Restocking and firmer import freight added support, sustaining steady price gains.
Chinese polyethersulfone prices averaged USD 11.42/KG in Q1 2026, up 3.3% from USD 11.05/KG in Q4 2025, the sharpest quarterly gain among reporting regions. Tight domestic supply, firmer feedstock costs, and rising use in water-treatment membranes and electronics pushed quotes higher. Export enquiries from Asia and the Middle East added support, though ample low-cost capacity kept the region the most competitive source.
Why did the price of Polyethersulfone change in Q1 2026 in China?
Tight supply and higher feedstock costs raised the cost base, while strong membrane and electronics demand absorbed volumes. Competitive capacity kept prices below Western and Japanese levels.
Japanese polyethersulfone prices averaged USD 14.20/KG in Q1 2026, 2.5% above the USD 13.85/KG seen in Q4 2025 and the highest among the tracked regions. Demand from high-grade electronics and medical applications stayed firm, and producers held premium output tight. A weaker stock of imported material and elevated freight supported domestic quotes, keeping Japan at the top of the price range.
Why did the price of Polyethersulfone change in Q1 2026 in Japan?
Firm electronics and medical demand met tight premium supply, lifting offers. Limited imports and higher freight reinforced the gain, holding Japan at the premium end.
German polyethersulfone prices averaged USD 13.10/KG in Q4 2025, extending the year’s steady climb. Firm demand from European membrane and biopharma customers met disciplined specialty supply, and producers nudged contract levels higher. Energy costs eased modestly through the quarter, but tight availability of premium grades kept the market firm into year-end.
Why did the price of Polyethersulfone change in Q4 2025 in Germany?
Tight premium supply and steady biopharma demand lifted offers. Disciplined producer output sustained the climb, holding the average near USD 13.10/KG.
US polyethersulfone prices averaged USD 12.55/KG in Q4 2025, firmer on the quarter. Aerospace and medical demand held up well, and specialty producers kept supply measured. Service centres restocked ahead of the new year, and limited low-priced imports allowed domestic sellers to sustain higher offers through the period.
Why did the price of Polyethersulfone change in Q4 2025 in the United States?
Healthy aerospace and medical demand met disciplined supply, supporting prices. Restocking and limited import competition kept the market firm near USD 12.55/KG.
Chinese polyethersulfone prices averaged USD 11.05/KG in Q4 2025, holding firm after a strong run earlier in the year. Tight domestic supply and rising membrane and electronics use supported the market, while competitive capacity kept the region the lowest-cost source. Modest restocking ahead of the new year added support through the quarter.
Why did the price of Polyethersulfone change in Q4 2025 in China?
Tight supply and steady membrane demand held prices firm. Competitive capacity kept the region below Western levels, holding the average near USD 11.05/KG.
Japanese polyethersulfone prices averaged USD 13.85/KG in Q4 2025, the firmest level outside the early-2026 period. Strong demand from electronics and medical applications met tight premium supply, and producers held output disciplined. Limited imported material and steady contract buying kept the market firm into year-end.
Why did the price of Polyethersulfone change in Q4 2025 in Japan?
Firm electronics and medical demand met tight premium supply, supporting prices. Disciplined output kept Japan at the top of the range, near USD 13.85/KG.
Global polyethersulfone prices climbed steadily across the six-quarter window. The average rose from USD 12.04/KG in Q1 2025 to USD 12.64/KG by Q4 2025 and reached USD 12.99/KG by Q1 2026, a net gain of about 7.9%. Resilient filtration, medical, and electronics demand drove the 2025 strength, while tight specialty supply and higher freight extended the climb into early 2026.
| Quarter | Price (USD/KG) | QoQ Change | Direction |
| Q1 2026 | 12.99 | +2.8% | ↑ Rising |
| Q4 2025 | 12.64 | +1.1% | ↑ Rising |
| Q3 2025 | 12.50 | +1.8% | ↑ Rising |
| Q2 2025 | 12.28 | +2.0% | ↑ Rising |
| Q1 2025 | 12.04 | - | - Stable |
| Q2 2026 | In Progress | - | - In Progress |
Polyethersulfone prices rose through 2025 with no meaningful pullback. The global average opened at USD 12.04/KG in Q1, advanced to USD 12.50/KG by Q3, and closed near USD 12.64/KG in Q4, a full-year gain of about 5.0%. Three forces shaped the year. Resilient demand from filtration and medical end uses kept order books full, tight specialty supply limited availability, and steady feedstock costs supported a firm production floor.
German prices opened Q1 2025 near USD 12.45/KG and closed Q4 at USD 13.10/KG, a gain of 5.2%. Prices firmed through the year as European membrane and biopharma demand stayed strong and premium-grade supply remained tight. Disciplined output and steady feedstock costs supported the climb, leaving Germany near the top of the European range. Tight specialty supply was the dominant driver.
US prices began Q1 2025 around USD 12.00/KG and ended Q4 at USD 12.55/KG, a gain of 4.6%. Healthy aerospace and medical demand lifted the market through the year, and specialty producers kept supply measured. Limited low-priced imports and steady restocking sustained the climb, holding firm pricing across all four quarters.
Chinese prices rose from roughly USD 10.40/KG in Q1 2025 to USD 11.05/KG by Q4, a gain of 6.3%, the strongest in the dataset. Tight domestic supply and fast-growing use in water-treatment membranes and electronics drove the advance, with a notable step up mid-year. Competitive capacity kept the region the lowest-cost source even as prices climbed.
Japanese prices climbed from about USD 13.30/KG in Q1 2025 to USD 13.85/KG by Q4, a gain of 4.1%. Firm demand from high-grade electronics and medical applications held the market up all year, and tight premium supply limited availability. Steady contract buying and limited imports kept Japan at the premium end of the global range.
Expert Market Research: Your Source for Real-Time Polyethersulfone Price Intelligence
Expert Market Research tracks polyethersulfone prices continuously across every major producing and consuming region, explaining not just that prices moved but precisely why. We trace causation through sulfone feedstock economics, energy tariffs, freight, specialty capacity discipline, and downstream demand in membranes, medical devices, aerospace, and electronics. Our forecasts draw on feedstock economics, trade flow data, and plant capacity utilisation across all reporting regions. Contact Expert Market Research today for polyethersulfone pricing data, bespoke market analysis, and strategic procurement advisory.
Water-treatment and biopharma membranes take the largest share of demand, followed by medical devices, aerospace and electronics components, and demanding automotive parts. Membrane and medical uses are the fastest-growing end markets.
The Q1 2026 average was USD 14.20/KG in Japan, USD 13.45/KG in Germany, USD 12.90/KG in the United States, and USD 11.42/KG in China, mostly on a contract to FOB basis. Japan remains the highest-priced market.
The global average rose from USD 12.04/KG in Q1 2025 to about USD 12.64/KG in Q4, a full-year gain of around 5.0%, driven by resilient filtration and medical demand and tight specialty supply.
Three factors dominated: resilient demand from filtration and medical end uses, tight specialty supply that limited availability, and steady feedstock costs that supported a firm production floor.
The global average is expected in the USD 12.80 to 13.60/KG range for the rest of 2026, assuming tight specialty supply and growing membrane demand hold while Asian capacity additions stay measured.
Japan and Germany carry a premium on high-grade electronics, medical, and biopharma demand, the United States sits firm on aerospace and medical use, and China prices lowest thanks to large low-cost capacity.
This report is updated monthly. For real-time pricing intelligence, contact the Expert Market Research team directly.
Prices respond mainly to sulfone feedstock costs, specialty capacity discipline, and downstream membrane and medical demand. Freight shifts and supply tightness can amplify short-term moves across regions.
Germany, the United States, and Japan host the established premium producers, while China is the fastest-growing volume source. Tight specialty supply means any disruption ripples across markets within one to two quarters.
Buyers can use quarterly trends and forecasts to time contracts, choose between fixed-price and index-linked supply, and secure volumes ahead of expected increases. Regional price gaps also help teams weigh alternative supply geographies when premium grades turn scarce.
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