Chapters › 2528.00.00

HTS 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

General (normal trade relations)Free
Special (trade programs)—
Column 2Free
As of Revision 22 (2026), effective Oct 30, 2026Source: USITC HTS ↗1 measure adds duty
Ask AI about this productChatGPTClaudePerplexityGoogle AIGrok

Chapter 99 measures that list this product

Each heading’s own text says whether the listing adds duty or exempts the product. Read the heading and its note before relying on a rate.

Measures on products of any country (check their exceptions)

Lines under 2528.00.00

HTSDescriptionGeneralColumn 2
2528.00.00.05Natural sodium borates and concentrates thereof (whether or not calcined)
2528.00.00.10Natural calcium borates
2528.00.00.50Other