Importers of HS 6303.92 (other) from Korea, South actually paid 20.63% on the taxed portion of the value in 2026-06 — 20.63% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 11.3%. Over the window the rate on the taxed portion moved 11.3% → 20.63%, with the largest single step -8pp in 2025-12. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 11.3% — importers actually paid 20.63%, so the trade-war overlay added 9.3 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "6303.92", origin: "Korea, South") · see it at trimtabist.com/tariffs
HS 6303.92. The schedule base rate is 11.3%; importers from South Korea actually paid 20.63% on the dutiable value in 2026-06 — the trade-war overlay added 9.3 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 11.3% (2023-07) → 20.63% (2026-06), largest single step -8pp in 2025-12.
Korea, South's lower duty (20.63% vs 27.8%) lets it price up to 5.9% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, China actually lands cheaper — $2.82/kg vs $11.42/kg (duty in, freight out).
All goods from South Korea · the whole tariff ledger · 9 CBP rulings cite this code · reproduce: tariff_story(hs: "6303.92", origin: "South Korea") via /connect. Not customs or legal advice.