Importers of HS 7410.11 (of refined copper) from Korea, South actually paid 45.08% on the taxed portion of the value in 2026-06 — 44.96% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 1%. Over the window the rate on the taxed portion moved 1% → 45.08%, with the largest single step +45.4pp in 2025-08. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 1% — importers actually paid 45.08%, so the trade-war overlay added 44.1 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "7410.11", origin: "Korea, South") · see it at trimtabist.com/tariffs
HS 7410.11. The schedule base rate is 1%; importers from South Korea actually paid 45.08% on the dutiable value in 2026-06 — the trade-war overlay added 44.1 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 1% (2023-07) → 45.08% (2026-06), largest single step +45.4pp in 2025-08.
Korea, South's lower duty (44.96% vs 76.12%) lets it price up to 21.5% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, China actually lands cheaper — $20.06/kg vs $22.28/kg (duty in, freight out).
All goods from South Korea · the whole tariff ledger · reproduce: tariff_story(hs: "7410.11", origin: "South Korea") via /connect. Not customs or legal advice.