Importers of HS 8419.89 (other) from Korea, South actually paid 9.96% on the taxed portion of the value in 2026-06 — 9.95% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 4.2%. Over the window the rate on the taxed portion moved 4.2% → 9.96%, with the largest single step -6pp in 2025-11. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 4.2% — importers actually paid 9.96%, so the trade-war overlay added 5.8 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "8419.89", origin: "Korea, South") · see it at trimtabist.com/tariffs
HS 8419.89. The schedule base rate is 4.2%; importers from South Korea actually paid 9.96% on the dutiable value in 2026-06 — the trade-war overlay added 5.8 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 4.2% (2023-07) → 9.96% (2026-06), largest single step -6pp in 2025-11.
Korea, South's lower duty (9.95% vs 38.05%) lets it price up to 25.6% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, China actually lands cheaper — $15.75/kg vs $30.64/kg (duty in, freight out).
All goods from South Korea · the whole tariff ledger · 10 CBP rulings cite this code · reproduce: tariff_story(hs: "8419.89", origin: "South Korea") via /connect. Not customs or legal advice.