Importers of HS 6103.43 (containing 23 percent or more by weight of wool or fine anim) from Vietnam actually paid 37.78% on the taxed portion of the value in 2026-06 — 37.78% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 58.5¢/kg + 15.2%. Over the window the rate on the taxed portion moved 28.09% → 37.78%, with the largest single step -7.8pp in 2026-03. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. Collected 37.78% against an HTS base of 58.5¢/kg + 15.2%. Reproduce exactly: tariff_story(hs: "6103.43", origin: "Vietnam") · see it at trimtabist.com/tariffs
HS 6103.43. The schedule base rate is 58.5¢/kg + 15.2%; importers from Vietnam actually paid 37.78% on the dutiable value in 2026-06. Measured, not modelled.
Over the window the collected rate moved 28.09% (2023-07) → 37.78% (2026-06), largest single step -7.8pp in 2026-03.
Vietnam's lower duty (37.78% vs 43.95%) lets it price up to 4.5% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, China actually lands cheaper — $8.33/kg vs $22.24/kg (duty in, freight out).
All goods from Vietnam · the whole tariff ledger · 4 CBP rulings cite this code · reproduce: tariff_story(hs: "6103.43", origin: "Vietnam") via /connect. Not customs or legal advice.