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HS code 2528: Natural borates and concentrates thereof (whether or not calcined)…

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 % of H3BO3 calculated on the dry weight — heading 2528 of the Harmonized System (HS 2022).

SectionV
Chapter25
Subheadings (6 digits)1

Chapter 25: Salt; sulphur; earths, stone; plastering materials, lime and cement

6-digit code for 2528

Heading 2528 is not split further at the 6-digit level, so the international code is 2528.00. Click a code to copy it.

Confirm the full code and the duty rate

The first 6 digits are the same in every country that uses HS 2022. Each country adds 2–4 more digits and sets the duty in its own tariff, and the section and chapter notes can include or exclude products, so check the destination’s official tariff before you put the code on the invoice.

Search HS codes by product name →

Other headings in chapter 25

← 2526Chapter 252529 →

Source: HS 2022 nomenclature, 6-digit level (UN Comtrade). Descriptions are in English, as in the official nomenclature. Digits after the 6th differ by country.

Guides on this topic

Common questions

What is HS code 2528?

2528 is the HS 2022 heading for 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 % of H3BO3 calculated on the dry weight. It is in chapter 25 (Salt; sulphur; earths, stone; plastering materials, lime and cement), section V, and is not split further: the 6-digit code is 2528.00.

Can I write 2528 on a commercial invoice?

Customs usually need at least the 6-digit subheading (for example 2528.00), and the import declaration uses the destination country’s full code of 8 to 10 digits. Use the subheading that matches your product, and confirm the national digits with the buyer, the customs broker or the official tariff.

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