Importers of HS 4009.32 (with fittings) from Mexico actually paid 5.67% on the taxed portion of the value in 2026-06 — 0.91% 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% → 5.67%, with the largest single step +21.2pp in 2025-03. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 2.5% — importers actually paid 5.67%, so the trade-war overlay added 3.2 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "4009.32", origin: "Mexico") · see it at trimtabist.com/tariffs
HS 4009.32. The schedule base rate is 2.5%; importers from Mexico actually paid 5.67% on the dutiable value in 2026-06 — the trade-war overlay added 3.2 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 2.5% (2023-07) → 5.67% (2026-06), largest single step +21.2pp in 2025-03.
Mexico's lower duty (0.91% vs 39.02%) lets it price up to 37.8% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, China actually lands cheaper — $9.98/kg vs $39.97/kg (duty in, freight out).
5 Chapter-99 measures name Mexico; scope mapping is partial (several annexes are PDFs) — absence never means exemption. They do not sum, and some are product-specific — the collected rate above is the composed truth.
All goods from Mexico · the whole tariff ledger · reproduce: tariff_story(hs: "4009.32", origin: "Mexico") via /connect. Not customs or legal advice.