HTS 1604 — Prepared or preserved fish Tariff Rate (2026)

Under HTS 1604, prepared or preserved fish enter the United States with a 4% MFN duty rate as the base MFN rate. Prepared or preserved fish including canned tuna and salmon. Canned tuna is a major import category. 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 1604 owes about $400 in MFN duty (4%); adding the 10% base forced-labor surcharge brings it to roughly $1,400 from a standard-tier origin, or about $1,650 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 1604 imports include TH, CN, EC, ID, VN. 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 TH compares.