Importers of HS 2903.45 (1,1,1,2-tetrafluoroethane (hfc-134a) and 1,1,2,2-tetrafluoro) from India actually paid 3.99% on the taxed portion of the value in 2026-06 — 3.99% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 3.7%. Over the window the rate on the taxed portion moved 3.7% → 3.99%, with the largest single step +4.1pp in 2026-02. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 3.7% — importers actually paid 3.99%, so the trade-war overlay added 0.3 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "2903.45", origin: "India") · see it at trimtabist.com/tariffs
HS 2903.45. The schedule base rate is 3.7%; importers from India actually paid 3.99% on the dutiable value in 2026-06 — the trade-war overlay added 0.3 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 3.7% (2023-07) → 3.99% (2026-06), largest single step +4.1pp in 2026-02.
7 Chapter-99 measures name India; 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 India · the whole tariff ledger · reproduce: tariff_story(hs: "2903.45", origin: "India") via /connect. Not customs or legal advice.