Difluoromethane (hfc-32)

US trade by year

US imports were $43.9M in the 12 months to Aug 2026, up 33% on the 12 months to Aug 2023. US exports were $14.3M, up 40%. This code began with the HS 2022 revision in January 2022, taking goods from 2903.39, so its history starts there. 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.

• India
• United Arab Emirates
• Thailand
• Taiwan
• All countries

Who supplies the US

August 2026. Small figures under each value are the change from August 2025.

The 3 largest suppliers had 99.2% of US imports over the last 12 months.

How the market is shifting

India gained the most share: 56.3% of US imports over the last 12 months, up from 48.0% in the 12 months before. Thailand lost the most: 4.8%, down from 10.3%. 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.

• India
• United Arab Emirates
• Thailand
• Taiwan
• 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. April–May 2026 · Duty paid: India 53.7% → 13.7%, all countries 51.6% → 13.7%.
2. September–November 2025 · Duty paid: India 12.7% → 53.7%, all countries 16.5% → 47.2%.
   • Implementing Certain Tariff-Related Elements of the U.S.-EU Framework on an Agreement on Reciprocal, Fair, and Balanced TradeSep 25, 2025 · Office of the US Trade Representative
   • Adoption and Procedures of the Section 232 Steel and Aluminum Tariff Inclusions ProcessAug 19, 2025 · Bureau of Industry and Security
3. June 2025 · Duty paid: all countries 7.6% → 13.3%.

Federal Register notices from the last 12 months that list this product's tariff codes. A notice can add a duty, exclude products from one or only mention them, so read each for what it changes. Search the Federal Register for 2903.42

• Notice of Action: Brazil's Acts, Policies, and Practices Related to Digital Trade and Electronic Payment Services; Unfair, Preferential Tariffs; Anti-Corruption Enforcement; Intellectual Property Protection; Ethanol Market Access; and Illegal DeforestationJul 20, 2026 · Office of the US Trade Representative
• Implementing Certain Tariff-Related Elements of the Framework for a United States-Switzerland-Liechtenstein Agreement on Fair, Balanced, and Reciprocal TradeDec 18, 2025 · International Trade Administration

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; 101 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 Thailand, which imported $110.2M of this product in 2025, none of it from the US.

Of these, imports into Turkey grew fastest: up 220% from 2024 to 2025.

Related products

Other products under heading 2903: halogenated derivatives of hydrocarbons. US trade over the 12 months to August 2026.