HS chapter 68, all origins, from official duty receipts. Burden 1.1% in 2017-06 → peak 18.1% in 2026-01 → 10.4% in 2026-06, on $81M of duty in the latest month.
What America imports in stone & plaster articles · the whole tariff story · any origin: tariff_burden(origin: "Vietnam", commodity: "68") · any code: tariff_lookup(hs, origin) via /connect. Not customs or legal advice.