💾 Data Updated: Latest version • Last updated: December 09, 2025

2524.90.00.10 - Amosite 🖩

Details

FieldValue
Unit of Quantityt
General Rate of Duty (Column 1 - General)Free
Special Rate of Duty (Column 1 - Special)N/A
Column 2 Rate of DutyFree
Quota QuantityN/A
Additional DutiesN/A
About Duty Rates: Rates are divided into Column 1 and Column 2. Column 1 is subdivided into General (normal trade relations rates for all countries not eligible for special programs) and Special (preferential rates for countries with free trade agreements or preference programs). Column 2 rates apply to products from Cuba, North Korea, Belarus, and Russia. When no special rate exists for a classification, General rates apply.

Overview

This HTS classification covers amosite asbestos, a specific type of amphibole asbestos characterized by its fibrous nature and brownish color. Amosite is primarily composed of magnesium iron silicate and is recognized for its excellent heat and chemical resistance properties, making it historically valuable in insulation and fireproofing applications. Within Chapter 25, which deals with salt, sulfur, earths, and stone, this code specifically isolates amosite from other forms of asbestos for detailed tariff purposes.

Amosite is distinguished from its sibling category, Chrysotile (2524.10.00.00), which refers to serpentine asbestos, the most common form of asbestos, typically white and characterized by its curly fibers. While both are types of asbestos, their distinct mineral compositions and physical properties necessitate separate classifications. It also differs from the general "Other" asbestos category (2524.90.00.60), which serves as a residual classification for any asbestos not specifically enumerated elsewhere in this heading.

As a leaf node within the HTS structure, this classification for amosite does not have further subcategories. Therefore, the focus remains on accurately identifying amosite asbestos based on its inherent properties and ensuring it is not misclassified under other asbestos types or the more general residual category. Importers and exporters should be aware that the use and importation of amosite asbestos are subject to stringent regulations and prohibitions in many jurisdictions due to health hazards.

Frequently Asked Questions

›What is HTS code 2524.90.00.10?
HTS code 2524.90.00.10 covers Amosite under the US Harmonized Tariff Schedule. It falls under Chapter 25: Salt; sulfur; earths and stone; plastering materials, lime and cement.
›What products are classified under 2524.90.00.10?
This classification covers Amosite. It is a subcategory of Other (2524.90.00).
›What is the import duty rate for 2524.90.00.10?
The general rate of duty for HTS 2524.90.00.10 is Free. The Column 2 rate is Free.
›What unit of quantity is used for 2524.90.00.10?
Imports under HTS 2524.90.00.10 are measured in t.

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