HS 2511-20 – Natural barium carbonate (witherite)
Tariff data as of T2026-2, effective Sept 1, 2026, last verified Oct 21, 2026
Natural barium sulphate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of heading 28.16. – Natural barium carbonate (witherite).