Polyisoprene Price Trend and Forecast 2026-2027

Japan paid the most for polyisoprene in Q2 2026: USD 2,115/MT, up 3.4% from USD 2,045 in Q1. Synthetic polyisoprene is polymerised from isoprene monomer using a stereospecific catalyst to produce high-cis material that closely mimics the molecular structure of natural rubber, giving manufacturers a consistent, quality-controlled alternative to plantation-sourced natural rubber.

Medical and latex-glove grade, requiring stringent purity to avoid the proteins that can trigger natural rubber latex allergies, commands a premium over general-purpose high-cis material used in tyres and other rubber goods. Japan hosts some of the most established synthetic polyisoprene production capacity globally, reflecting the country's decades-long position in the broader synthetic rubber industry, while Singapore's petrochemical hub status gives it a strong regional trading and production position.

Because polyisoprene competes directly with natural rubber in many applications, its pricing is influenced by natural rubber's own supply conditions, particularly weather-driven tapping disruptions in Southeast Asia, in addition to its own isoprene monomer feedstock costs. Tyre manufacturing remains the largest single end use, though medical glove and consumer rubber goods demand has grown into a meaningful secondary market, particularly for the higher-purity grades that general-purpose natural rubber cannot always reliably match.

China remained the most affordable origin tracked in this report, trading roughly 18% below Japan through Q2 2026. Procurement teams sourcing across borders should factor that spread against their own freight and duty costs before comparing landed price.

Polyisoprene Price Forecast for 2026

Expect steady gains across all four markets through H2 2026 as tyre and medical glove manufacturing demand continues its gradual recovery. China should retain its cost advantage given its scale of production capacity. Japan's premium should persist given its established position in high-purity synthetic rubber manufacturing specifically. Natural rubber supply conditions in Southeast Asia remain worth watching closely, since any tightening there would likely increase substitution demand toward synthetic polyisoprene.

Taken together, the 4 markets in this report averaged a 3.5% increase quarter on quarter through the first half of 2026, a pace we expect to broadly continue barring a shift in the underlying cost or demand picture described above.

For the Quarter Ending June 2026

Polyisoprene Prices Q2 2026:

• United States: USD 1,935/MT
• Japan: USD 2,115/MT
• China: USD 1,795/MT
• Singapore: USD 1,978/MT

Polyisoprene Prices in United States

United States reached USD 1,935/MT in Q2 2026, firm tyre manufacturing demand kept US pricing climbing in step with the broader feedstock trend, ranking it the 3rd most expensive among the 4 markets this report follows.

Why did the price of Polyisoprene change in Q2 2026 in United States?

Firm tyre manufacturing demand kept US pricing climbing in step with the broader feedstock trend, working out to United States trading about 1.1% below this quarter's 4-region average.

Measured against United States's own average pace of 1.7% a quarter across the six quarters this report tracks, this move came in faster than that pace.

Polyisoprene Prices in Japan

Japan rose 3.4% to USD 2,115/MT in Q2 2026, strong demand for high-purity medical and latex-glove grade material from the region's established manufacturing base kept Japan at the top of this group, placing it the priciest across the 4 regions covered in this report.

Why did the price of Polyisoprene change in Q2 2026 in Japan?

Strong demand for high-purity medical and latex-glove grade material from the region's established manufacturing base kept Japan at the top of this group, leaving Japan running roughly 8.1% above the 4-region average for the quarter.

That is faster than the 1.6% average quarterly move Japan has posted across the six quarters this report tracks.

Polyisoprene Prices in China

USD 1,795/MT. That is where China landed in Q2 2026, up 3.6% from USD 1,732/MT in Q1 2026, putting it the most affordable of the 4 markets tracked this quarter.

Why did the price of Polyisoprene change in Q2 2026 in China?

Growing domestic tyre manufacturing demand supported a firm quarter, even as China remained the most competitively priced of the four markets, with China now sitting about 8.2% below the 4-region average this quarter.

China has averaged 1.7% a quarter over the six quarters this report tracks; this move came in faster than that longer-run pace.

Polyisoprene Prices in Singapore

Singapore's price gained 3.6% to USD 1,978/MT, steady regional demand and the country's petrochemical hub position supported a firm increase, making it the 2nd most expensive of the 4 markets tracked here this quarter.

Why did the price of Polyisoprene change in Q2 2026 in Singapore?

Steady regional demand and the country's petrochemical hub position supported a firm increase, which puts Singapore roughly 1.1% above the average across the 4 regions this report tracks.

Set against a 1.7% average quarterly pace over the six quarters this report tracks, Singapore's move this quarter landed faster than that trend.

For the Quarter Ending March 2026

Polyisoprene Prices Q1 2026:

• United States: USD 1,868/MT
• Japan: USD 2,045/MT
• China: USD 1,732/MT
• Singapore: USD 1,910/MT

Polyisoprene Prices in United States

United States reached USD 1,868/MT in Q1 2026, early-year tyre sector restocking supported a firm start to 2026, ranking it the 3rd most expensive among the 4 markets this report follows.

Why did the price of Polyisoprene change in Q1 2026 in United States?

Early-year tyre sector restocking supported a firm start to 2026, working out to United States trading about 1.1% below this quarter's 4-region average.

Measured against United States's own average pace of 1.7% a quarter across the six quarters this report tracks, this move came in slower than that pace.

Polyisoprene Prices in Japan

Japan rose 1.2% to USD 2,045/MT in Q1 2026, consistent demand from the region's established synthetic rubber industry carried prices higher, placing it the priciest across the 4 regions covered in this report.

Why did the price of Polyisoprene change in Q1 2026 in Japan?

Consistent demand from the region's established synthetic rubber industry carried prices higher, leaving Japan running roughly 8.3% above the 4-region average for the quarter.

That is slower than the 1.6% average quarterly move Japan has posted across the six quarters this report tracks.

Polyisoprene Prices in China

USD 1,732/MT. That is where China landed in Q1 2026, up 1.2% from USD 1,711/MT in Q4 2025, putting it the most affordable of the 4 markets tracked this quarter.

Why did the price of Polyisoprene change in Q1 2026 in China?

Growing domestic capacity utilisation supported a modest early-year gain, with China now sitting about 8.3% below the 4-region average this quarter.

China has averaged 1.7% a quarter over the six quarters this report tracks; this move came in slower than that longer-run pace.

Polyisoprene Prices in Singapore

Singapore's price gained 1.2% to USD 1,910/MT, steady regional trading demand carried prices higher as the new year began, making it the 2nd most expensive of the 4 markets tracked here this quarter.

Why did the price of Polyisoprene change in Q1 2026 in Singapore?

Steady regional trading demand carried prices higher as the new year began, which puts Singapore roughly 1.1% above the average across the 4 regions this report tracks.

Set against a 1.7% average quarterly pace over the six quarters this report tracks, Singapore's move this quarter landed slower than that trend.

Quarterly Polyisoprene Price Trends

The global average climbed steadily across the window, from USD 1,800/MT in Q1 2025 to USD 1,956 by Q2 2026, a gain of 8.7% over six quarters.

What was Polyisoprene Price in 2025?

Looking back at 2025, the global polyisoprene average ran from about USD 1,800/MT in Q1 to USD 1,866 by Q4, a 3.7% increase across the year.

Polyisoprene Prices in United States in 2025

United States prices moved from about USD 1,780/MT in Q1 2025 to USD 1,846 by Q4, up roughly 3.7%. United States closed the year ranked 3 of the 4 markets this report tracks.

Polyisoprene Prices in Japan in 2025

Japan prices moved from about USD 1,950/MT in Q1 2025 to USD 2,021 by Q4, up roughly 3.6%, leaving Japan in 1 place among the 4 tracked markets heading into the new year.

Polyisoprene Prices in China in 2025

China prices moved from about USD 1,650/MT in Q1 2025 to USD 1,711 by Q4, up roughly 3.7%. That left China ranked 4 of 4 tracked markets heading into 2026.

Polyisoprene Prices in Singapore in 2025

Singapore prices moved from about USD 1,820/MT in Q1 2025 to USD 1,887 by Q4, up roughly 3.7%, placing Singapore 2 of 4 tracked markets as 2025 closed out.

How We Can Help

Expert Market Research: Your Source for Real-Time Polyisoprene Price Intelligence

Tracking polyisoprene prices means tracking what actually moves them: isoprene monomer costs, regional demand shifts, and the policy decisions that touch both. Our team maintains that view across every region in this report, refreshing it as conditions change.

Rather than a single static figure, our forecasts blend capacity data, feedstock cost trends, and demand signals from across the regions we cover, built specifically to support procurement budgeting and supplier negotiations.

Reach out to our analysts for a deeper regional breakdown, historical data extending beyond the six quarters shown here, or a custom polyisoprene sourcing analysis tailored to your specific procurement footprint.

We track general-purpose high-cis and medical/latex grade pricing separately, since the purity premium for medical-grade material can shift independently of the broader tyre-driven general-purpose market.