HS 2528 — 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
Harmonized System heading · Chapter 25 Salt, sulphur, earths, stone
HS Code
4-digit heading
Chapter 25
Chapter 25 Salt, sulphur, earths, stone
Typical duty
By subheading & market
What HS 2528 covers
Salt, sulphur, earths, stones (other than precious), plaster, lime and cement.
Classification notes
Material and state (raw stone vs cement vs plaster) determine classification.
Back to Chapter 25
Frequently asked questions about HS 2528
What is HS 2528?
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 is a 4-digit Harmonized System (HS) heading under Chapter 25 (Salt, sulphur, earths, stone). It groups goods before national 6-digit subheadings.
Which products are classified under HS 2528?
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 covers the products described by this heading. To classify a specific good, determine the precise 6-digit HS subheading, since rates and rules apply at the subheading level.
How do I find the import duty for HS 2528 goods?
Identify the 6-digit subheading for your product, then check the MFN rate and any preferential rate for your destination market (e.g. China, the United States, the EU). 169e’s country tariff pages list rates per HS chapter.
What should I watch for when classifying HS 2528 products?
Material and state (raw stone vs cement vs plaster) determine classification.