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HTS 2521Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement

Product or HTS code

Rate lines1

Code	Description	General	Special	Column 2	Units	Calculate
2521.00.00.00	2521.00.00.00Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cementGeneral Free · Column 2 Free · t	Free		Free	t

2026 HTS Revision 21 (October 9, 2026)

Duty by country of origin

Rate line	Canada50.37% of imports	Dominican Republic21.55% of imports	Jamaica17.51% of imports	Spain5.73% of imports	Greece1.23% of imports	Türkiye0.9% of imports	Japan0.68% of imports	Bulgaria0.6% of imports	Morocco0.32% of imports	Germany0.28% of imports
2521.00.00.00Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement	10%9903.05.29	VariesDepends on product facts	0%	10%9903.05.39	10%9903.05.39	12.5%9903.05.79	12.5%9903.05.49	10%9903.05.39	12.5%9903.05.56	10%9903.05.39

Total duty on a $10,000 ocean shipment entered 2026-10-13, before customs fees. Origins are the leading sources of US imports under this heading in 2025 (US Census Bureau).