Importers of HS 3917.32 (other, not reinforced or otherwise combined with other mater) from Canada actually paid 11.95% on the taxed portion of the value in 2026-06 — 0.37% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 3.1%. Over the window the rate on the taxed portion moved 3.1% → 11.95%, with the largest single step +21.9pp in 2025-03. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 3.1% — importers actually paid 11.95%, so the trade-war overlay added 8.8 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "3917.32", origin: "Canada") · see it at trimtabist.com/tariffs
HS 3917.32. The schedule base rate is 3.1%; importers from Canada actually paid 11.95% on the dutiable value in 2026-06 — the trade-war overlay added 8.8 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 3.1% (2023-07) → 11.95% (2026-06), largest single step +21.9pp in 2025-03.
Canada's lower duty (0.37% vs 37.04%) lets it price up to 36.5% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, China actually lands cheaper — $3.71/kg vs $7.77/kg (duty in, freight out).
7 Chapter-99 measures name Canada; 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 Canada · the whole tariff ledger · 4 CBP rulings cite this code · reproduce: tariff_story(hs: "3917.32", origin: "Canada") via /connect. Not customs or legal advice.