What is the US import duty for HS code 2528.00?

The US general (normal trade relations) rate is: Free. Preference programs and Section 232/301 surcharges can change the effective rate; see the HTS lines for detail.

What is the UK commodity code for 2528.00?

The UK extends 2528.00 to 1 declarable 10-digit commodity code, starting with 2528000000. The full code goes on the UK customs declaration.

Chapter 25 · Salt; sulphur; earths and stone; lime and cement · Section 5

HS Code 2528.00

Q: What is HS code 2528.00?

HS code 2528.00 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. It belongs to chapter 25 (Salt; sulphur; earths and stone; lime and cement) of the Harmonized System.

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

US duty (general)

Free

US HTS lines

EU CN codes

UK commodity codes

Unit

US HTS + UK Tariff v4.0.1596 · updated 2026-09-10 · sources

United States - HTS lines under 2528.00

Source: official Harmonized Tariff Schedule (USITC). "General" is the normal-trade-relations rate; "Special" lists preference programs; "Other" is the column-2 rate. Additional Section 232/301 duties may apply on top.

HTS code	Description	General	Special	Other	Unit
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 3 statistical lines (10-digit) 2528.00.00.05 - Natural sodium borates and concentrates thereof (whether or not calcined) 2528.00.00.10 - Natural calcium borates 2528.00.00.50 - Other	Free	-	Free	kg

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Enter the customs value (and quantity, when a rate is per-unit) to estimate the general-rate duty per HTS line. Estimates exclude Section 232/301 surcharges, MPF/HMF and fees. Not a customs ruling.

Customs value (USD) Quantity (kg)

European Union - CN codes under 2528.00

Source: EU Combined Nomenclature (Eurostat, © European Union, reused per Decision 2011/833/EU). Duty rates and measures live in TARIC; each code links to the official consultation.

CN code	Description
2528 00 00	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 % of H3BO3 calculated on the dry weight	EU duty (TARIC) →

United Kingdom - commodity codes under 2528.00

Source: UK Integrated Online Tariff (Open Government Licence v3.0). Declarable 10-digit codes go on the customs declaration; check the official page for the current duty and VAT measures.

Commodity code	Description
2528 00 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 % of H<sub>3</sub>BO<sub>3</sub> calculated on the dry weight	UK duty & VAT →

Not a customs ruling. Classification is determined by the importing country's customs authority and depends on the exact product. This page is reference information from official published schedules, not legal advice. For a binding decision, request a ruling (US: CBP CROSS · UK: HMRC ATaR · EU: BTI).

Other subheadings in 2528

2528.00 Natural borates and concentrates thereof (whether or not calcined), but not including bora

Sources: U.S. International Trade Commission, Harmonized Tariff Schedule (public domain) · EU Combined Nomenclature © European Union, Eurostat (Decision 2011/833/EU) · UK Integrated Online Tariff, contains public sector information licensed under the Open Government Licence v3.0. Data refreshed weekly. Details on About & Data Sources.