HTS 3909 — Amino-resins and phenolic resins Tariff Rate (2026)

HTS heading 3909 covers amino-resins and phenolic resins, entering the United States at a 6.5% MFN duty rate. Amino-resins, phenolic resins, and polyurethanes in primary forms. Used in adhesives, coatings, and insulation. Beyond the base MFN duty, goods under this heading from most non-EU origins add the Section 301 forced-labor tariff (10% standard, 12.5% for the ~28-economy forced-labor tier such as China, Vietnam, and Thailand), which took over from the expired Section 122 rate on July 24, 2026. EU-origin goods are capped at the 15% all-inclusive EU-US deal ceiling instead. Chinese-origin goods add a Section 301 China tariff of 25% on top. Worked example: a $10,000 shipment under HTS 3909 owes about $650 in MFN duty (6.5%); adding the 10% base forced-labor surcharge brings it to roughly $1,650 from a standard-tier origin, or about $1,900 from a 12.5%-tier origin such as China (before that origin's Section 301 China tariff). Check your exact figure with the tariff calculator. The top countries of origin for HTS 3909 imports include DE, CN, KR, JP, CA. Effective duty varies by source country based on trade agreements (USMCA, KORUS) and tariff programs — see the per-country tariff rates by country for how DE compares.