Importers of HS 8302.30 (of iron or steel, of aluminum or of zinc) from Korea, South actually paid 10.58% on the taxed portion of the value in 2026-06 — 4.27% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 2%. Over the window the rate on the taxed portion moved 2.02% → 10.58%, with the largest single step +9.1pp in 2025-03. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 2% — importers actually paid 10.58%, so the trade-war overlay added 8.6 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "8302.30", origin: "Korea, South") · see it at trimtabist.com/tariffs
HS 8302.30. The schedule base rate is 2%; importers from South Korea actually paid 10.58% on the dutiable value in 2026-06 — the trade-war overlay added 8.6 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 2.02% (2023-07) → 10.58% (2026-06), largest single step +9.1pp in 2025-03.
Korea, South's lower duty (4.27% vs 41.49%) lets it price up to 35.7% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, Korea, South actually lands cheaper — $6.68/kg vs $7.02/kg (duty in, freight out).
All goods from South Korea · the whole tariff ledger · 21 CBP rulings cite this code · reproduce: tariff_story(hs: "8302.30", origin: "South Korea") via /connect. Not customs or legal advice.