2528.00.00-Natural borates and concentrates thereof (whether or not

OPEN OR CLOSE CATEGORIES AND COLLECT HTS CODE FOR LOGIN USER

Harmonized Tariff Schedule (2025 HTS Revision 25 (10/13/2025))

HTS Code	2528.00.00
Article Description	Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85 percent of H₃BO₃ calculated on the dry weight
Quota of Quantity
Unit of Quantity	[]
Rates of Duty (1-General)	Free
Rates of Duty (1-Special)
Rates of Duty (2-Cuba and North Korea)	Free
Footnotes	[{columns=[general], value=See 9903.88.03., type=endnote}]
Additional Duty
Additional Duty(products of China)

Section V:	Mineral Products
Chapter 25	Salt; sulfur; earths and stone; plastering materials, lime and cement
Subheading 2528.00.00	Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85 percent of H₃BO₃ calculated on the dry weight