U.S. imports of limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement (HS 2521000000) totaled $2.8M in August 2026, imported from 10 countries.

Importers of Limestone Flux; Limestone and Other Calcareous Stone, Of A Kind Used for the Manufacture of Lime or Cement paid $35K in duties in August 2026, an effective tariff rate of 1.26% of the $2.8M imported — duty actually collected as a share of that value, not the published tariff schedule. Limestone Flux; Limestone and Other Calcareous Stone, Of A Kind Used for the Manufacture of Lime or Cement imports of $2.8M in August 2026 ran 102% above the year-to-date monthly average of $1.4M.