Importers of HS 2910.30 (1-chloro-2,3-epoxypropane (epichlorohydrin)) from Thailand actually paid 13.7% on the taxed portion of the value in 2026-06 — 13.7% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 3.7%. Over the window the rate on the taxed portion moved null% → 13.7%, with the largest single step +22.7pp in 2025-09. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 3.7% — importers actually paid 13.7%, so the trade-war overlay added 10 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "2910.30", origin: "Thailand") · see it at trimtabist.com/tariffs
HS 2910.30. The schedule base rate is 3.7%; importers from Thailand actually paid 13.7% on the dutiable value in 2026-06 — the trade-war overlay added 10 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved % (2023-07) → 13.7% (2026-06), largest single step +22.7pp in 2025-09.
All goods from Thailand · the whole tariff ledger · reproduce: tariff_story(hs: "2910.30", origin: "Thailand") via /connect. Not customs or legal advice.