Importers of HS 8409.91 (other) from Thailand actually paid 9.09% on the taxed portion of the value in 2026-06 — 9.09% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 2.5%. Over the window the rate on the taxed portion moved 2.5% → 9.09%, with the largest single step -11.2pp in 2026-02. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 2.5% — importers actually paid 9.09%, so the trade-war overlay added 6.6 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "8409.91", origin: "Thailand") · see it at trimtabist.com/tariffs
HS 8409.91. The schedule base rate is 2.5%; importers from Thailand actually paid 9.09% on the dutiable value in 2026-06 — the trade-war overlay added 6.6 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 2.5% (2023-07) → 9.09% (2026-06), largest single step -11.2pp in 2026-02.
Thailand's lower duty (9.09% vs 33.56%) lets it price up to 22.4% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, Thailand actually lands cheaper — $9.48/kg vs $9.76/kg (duty in, freight out).
All goods from Thailand · the whole tariff ledger · 15 CBP rulings cite this code · reproduce: tariff_story(hs: "8409.91", origin: "Thailand") via /connect. Not customs or legal advice.