Importers of HS 8415.90 (other) from Korea, South actually paid 17.43% on the taxed portion of the value in 2026-06 — 15.96% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 1.4%. Over the window the rate on the taxed portion moved 1.4% → 17.43%, with the largest single step +7.9pp in 2025-09. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 1.4% — importers actually paid 17.43%, so the trade-war overlay added 16 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "8415.90", origin: "Korea, South") · see it at trimtabist.com/tariffs
HS 8415.90. The schedule base rate is 1.4%; importers from South Korea actually paid 17.43% on the dutiable value in 2026-06 — the trade-war overlay added 16 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 1.4% (2023-07) → 17.43% (2026-06), largest single step +7.9pp in 2025-09.
Korea, South's lower duty (15.96% vs 24.86%) lets it price up to 7.7% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, China actually lands cheaper — $8.22/kg vs $14.1/kg (duty in, freight out).
All goods from South Korea · the whole tariff ledger · 5 CBP rulings cite this code · reproduce: tariff_story(hs: "8415.90", origin: "South Korea") via /connect. Not customs or legal advice.