Importers of HS 4009.32 (with fittings) from Vietnam actually paid 11.96% on the taxed portion of the value in 2026-06 — 11.96% 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% → 11.96%, with the largest single step +5.7pp in 2025-09. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 2.5% — importers actually paid 11.96%, so the trade-war overlay added 9.5 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "4009.32", origin: "Vietnam") · see it at trimtabist.com/tariffs
HS 4009.32. The schedule base rate is 2.5%; importers from Vietnam actually paid 11.96% on the dutiable value in 2026-06 — the trade-war overlay added 9.5 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 2.5% (2023-07) → 11.96% (2026-06), largest single step +5.7pp in 2025-09.
Vietnam's lower duty (11.96% vs 39.02%) lets it price up to 24.2% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, Vietnam actually lands cheaper — $6.16/kg vs $9.98/kg (duty in, freight out).
All goods from Vietnam · the whole tariff ledger · reproduce: tariff_story(hs: "4009.32", origin: "Vietnam") via /connect. Not customs or legal advice.