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HTS code reference›Chapter 25: Salt, sulfur, earth and stone; plaster, lime and cement›2519.90.20.00
US HTS · 2026 REVISION 12

HTS Code 2519.90.20.00

Caustic calcined magnesite

Official tariff path

Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure: › Other: › Caustic calcined magnesite

Level: statistical10General duty: FreeUnit: t
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Does HTS 2519.90.20.00 fit your product?

This is the fastest way to use the page: compare the exact commercial description with the legal wording, then check the closest child or sibling provision. A valid code is not automatically the right code for every product in the same category.

  • The product must match the tariff wording: Caustic calcined magnesite.
  • This page is a reporting provision; verify the complete product description and chapter notes before filing.
  • The displayed duty is Free; origin programs, trade remedies, quotas and taxes may change the final amount.

What does HTS 2519.90.20.00 cover?

This provision appears in the 2026 Harmonized Tariff Schedule of the United States under the following legal tariff hierarchy.

  1. 1Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure:
  2. 2Other:
  3. 3Caustic calcined magnesite

Nearby tariff provisions

These are the alternatives worth comparing when one product fact changes.

2519.90.10.00Fused magnesia and dead-burned (sintered) magnesia2519.90.50.00Other
Official source and limitations

Based on USITC HTS 2026 Revision 12, published July 21, 2026. The general rate does not include every origin-specific program, Section 301 or 232 measure, antidumping or countervailing duty, quota, or other agency requirement.

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