Importers of HS 8411.91 (cast-iron parts, not advanced beyond cleaning, and machined ) from Taiwan actually paid 10% on the taxed portion of the value in 2026-06 — 0.35% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is Free. Over the window the rate on the taxed portion moved null% → 10%, with the largest single step +10pp in 2025-04. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is Free — importers actually paid 10%, so the trade-war overlay added 10 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "8411.91", origin: "Taiwan") · see it at trimtabist.com/tariffs
HS 8411.91. The schedule base rate is Free; importers from Taiwan actually paid 10% on the dutiable value in 2026-06 — the trade-war overlay added 10 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved % (2023-07) → 10% (2026-06), largest single step +10pp in 2025-04.
All goods from Taiwan · the whole tariff ledger · 3 CBP rulings cite this code · reproduce: tariff_story(hs: "8411.91", origin: "Taiwan") via /connect. Not customs or legal advice.