Importers of HS 7615.10 (cast) from China actually paid 32.44% on the taxed portion of the value in 2026-06 — 30.99% 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 7.15% → 32.44%, with the largest single step +24.6pp 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 32.44%, so the trade-war overlay added 29.3 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "7615.10", origin: "China") · see it at trimtabist.com/tariffs
HS 7615.10. The schedule base rate is 3.1%; importers from China actually paid 32.44% on the dutiable value in 2026-06 — the trade-war overlay added 29.3 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 7.15% (2023-07) → 32.44% (2026-06), largest single step +24.6pp in 2025-03.
Vietnam's lower duty (23.19% vs 30.99%) lets it price up to 6.3% above China at the factory and still match on duty-inclusive customs cost. But on the LATEST measured prices, China actually lands cheaper — $4.86/kg vs $6.82/kg (duty in, freight out).
15 Chapter-99 measures name China; 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 China · the whole tariff ledger · 7 CBP rulings cite this code · reproduce: tariff_story(hs: "7615.10", origin: "China") via /connect. Not customs or legal advice.