Importers of HS 8402.90 (parts) from Thailand actually paid 12.2% on the taxed portion of the value in 2026-06 — 12.2% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 4.3%. Over the window the rate on the taxed portion moved 4.29% → 12.2%, with the largest single step +14.3pp in 2025-07. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 4.3% — importers actually paid 12.2%, so the trade-war overlay added 7.9 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "8402.90", origin: "Thailand") · see it at trimtabist.com/tariffs
HS 8402.90. The schedule base rate is 4.3%; importers from Thailand actually paid 12.2% on the dutiable value in 2026-06 — the trade-war overlay added 7.9 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 4.29% (2023-07) → 12.2% (2026-06), largest single step +14.3pp in 2025-07.
Thailand's lower duty (12.2% vs 39.3%) lets it price up to 24.2% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, China actually lands cheaper — $8.82/kg vs $8.84/kg (duty in, freight out).
All goods from Thailand · the whole tariff ledger · reproduce: tariff_story(hs: "8402.90", origin: "Thailand") via /connect. Not customs or legal advice.