Importers of HS 9004.90 (other) from Taiwan actually paid 12.44% on the taxed portion of the value in 2026-06 — 12.44% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 2.5%. Over the window the rate on the taxed portion moved 2.5% → 12.44%, with the largest single step -9pp in 2026-03. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 2.5% — importers actually paid 12.44%, so the trade-war overlay added 9.9 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "9004.90", origin: "Taiwan") · see it at trimtabist.com/tariffs
HS 9004.90. The schedule base rate is 2.5%; importers from Taiwan actually paid 12.44% on the dutiable value in 2026-06 — the trade-war overlay added 9.9 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 2.5% (2023-07) → 12.44% (2026-06), largest single step -9pp in 2026-03.
Taiwan's lower duty (12.44% vs 19.33%) lets it price up to 6.1% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, China actually lands cheaper — $20.87/kg vs $22.14/kg (duty in, freight out).
All goods from Taiwan · the whole tariff ledger · 1 CBP ruling cite this code · reproduce: tariff_story(hs: "9004.90", origin: "Taiwan") via /connect. Not customs or legal advice.