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HTS code reference›Chapter 25: Salt, sulfur, earth and stone; plaster, lime and cement›2512.00.00.00
US HTS · 2026 REVISION 12

HTS Code 2512.00.00.00

Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less

Official tariff path

Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less

Level: statistical10General duty: FreeUnit: t
WHAT THIS PAGE ADDSRead the code in context

Official wording plus the product examples, decision checks and next steps that a raw tariff lookup does not provide.

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Does HTS 2512.00.00.00 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: Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less.
  • 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 2512.00.00.00 cover?

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

  1. 1Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less
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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