Isoprene rubber (ir) in primary forms or in plates, sheets or strip

US trade by year

US imports were $20.8M in the 12 months to Aug 2026, down 73% on the 12 months to Aug 2017. US exports were $96.8M, down 16%. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.

• Japan
• Russia
• Taiwan
• China
• All countries

Who supplies the US

August 2026. Small figures under each value are the change from August 2025. Landed cost by origin, below, adds freight and duty to the price.

The 3 largest suppliers had 87.2% of US imports over the last 12 months.

Landed cost by origin

What importers paid to land this product at a US port from each main supplier, June–August 2026: the price, freight and insurance to the first US port, and duty, per unit. Suppliers with 3% or more of these imports, cheapest landed first. Small figures under landed cost are the change from the same months a year earlier.

• Price
• Freight and insurance
• Duty

Landed at a US port, Russia was cheapest, at $2.85/kg: 27.4% below Japan.

Landed cost from Taiwan rose 505% on a year earlier, to $16.55/kg, mostly on price: $2.43/kg then, $14.85/kg now.

How the market is shifting

Russia gained the most share: 23.0% of US imports over the last 12 months, up from 20.0% in the 12 months before. Taiwan lost the most: 12.5%, down from 14.9%. The charts show September 2024 to August 2026 for the 4 largest suppliers over the last 12 months. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.

• Japan
• Russia
• Taiwan
• China
• All countries

Tariff actions touching this product

When the duty paid on this product changed and stayed changed, for its main suppliers and all countries, newest first, with the Federal Register notices that named the product in the 3 months before. Rates are medians of the 4 months either side, less any usual seasonal swing. A change shows what happened to duty paid, not why; read each notice for what it did.

1. May 2026 · Duty paid: Russia 0.0% → 30.0%.
2. November 2025 · Duty paid: all countries 8.0% → 14.4%.
3. March–July 2025 · Duty paid: Japan 0.0% → 10.0%, Russia 17.1% → 0.0%, all countries 0.1% → 13.0%.

Markets abroad

Each country's own import figures for this product, from UN Comtrade: the 8 biggest importers outside the US in the latest year each has reported, what they bought from the US, and the change from the year before. Values usually include freight and insurance to the importer's border, so they run a little above US export figures. Countries report a year or more late; 78 have reported 2025 so far. Where a country's figure for imports from the US is under half or over double what the US recorded exporting there that year, the US figure is shown under it.

The biggest market outside the US is China, which imported $227.2M of this product in 2025, 1.0% of that from the US.

The US supplies 63.4% of imports into Brazil, but under 10% into China, Thailand and Malaysia.

Of these, imports into Indonesia grew fastest: up 55% from 2024 to 2025.

Related products

Other products under heading 4002: synthetic rubber and factice in primary forms etc.; mixtures of natural rubber or gums with synthetic rubber or factice, in primary forms etc.. US trade over the 12 months to August 2026.