What does HTS code 2528.00.00 cover?

HTS code 2528.00.00 covers 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, classified under Chapter 25 (Salt; sulfur; earths and stone; plastering materials, lime and cement) in the US Harmonized Tariff Schedule. The general duty rate is Free. There are 3 more specific sub-classifications under this code.

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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

HTS Code 2528.00.00 covers any article best defined as Mineral ProductsSalt; sulfur; earths and stone; plastering materials, lime and cementNatural 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 in the Harmonized Tariff Schedule — covering 3 sub-classifications.

Base Duty Rates for 2528.00.00

General Rate of Duty

Free

Special Rate of Duty

—

Column 2 (Non-NTR)

Free

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Where 2528.00.00 Appears in the Harmonized Tariff Schedule

3 sub-codes

Section 5Mineral Products
Chapter 25Salt; sulfur; earths and stone; plastering materials, lime and cement
2528.00.00Natural 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