HS Code for Natural borates
Natural borates are classified under HS code 2528.00 because they represent mineral substances obtained directly from the earth that have not undergone significant chemical transformation. The Harmonized System distinguishes between crude minerals and refined chemicals. Heading 2528 specifically encompasses natural sodium borates such as kernite and tincal, as well as natural calcium borates like colemanite and ulexite. Even if these minerals have been calcined to remove water of crystallization or have been crushed and ground, they remain in this category. However, the code explicitly excludes borates that have been separated from natural brines through complex chemical processes or those that have been refined into pure chemical compounds. Natural boric acid is also included here, provided its H3BO3 content does not exceed 85% on a dry weight basis; higher concentrations are classified as chemicals in Chapter 28. The classification process requires a detailed chemical analysis to ensure the H3BO3 content is accurately measured, as this determines whether the product stays in Chapter 25 or moves to the more strictly regulated Chapter 28.
Products Included
- Kernite (natural sodium borate)
- Tincal (crude natural borax)
- Colemanite (natural calcium borate)
- Ulexite (natural sodium-calcium borate)
- Pandermite
- Natural boric acid (concentration <= 85%)
- Calcined natural borates
Common Misclassification
The most frequent misclassification occurs with HS code 2840, which covers refined borates and disodium tetraborate (refined borax). While 2528.00 is for natural, crude minerals, 2840 is for chemically pure or commercially refined products. Another common error involves HS code 2519, which covers natural magnesium carbonates (magnesite); though both are industrial minerals, their chemical composition is distinct. Importers often confuse natural boric acid (2528.00) with refined boric acid (2810.00) if the H3BO3 concentration exceeds the 85% threshold.
FAQ
What is the HS code for Natural borates?
The HS code for natural borates and their concentrates, including those that have been calcined but excluding those separated from natural brine, is 2528.00.
Does this code include refined borax?
No, refined borax or disodium tetraborate is classified under HS code 2840. HS code 2528.00 is strictly for natural, unrefined mineral borates.
Industry
Frequently Asked Questions
What is the HS code for Natural borates?
The HS code for Natural borates is 252800 (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).
How do I classify Natural borates for customs?
Natural borates is classified under HS code 252800 — 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. This is a 6-digit subheading level code.
Is the HS code for Natural borates the same in all countries?
The base HS code 252800 for Natural borates is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.