Skip to content
251200Chapter 25

251200 — Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and…: 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

HS code 251200 classifies Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and…: 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. It belongs to Chapter 25 (Salt; sulphur; earths and stone; plastering materials, lime and cement) of Section V (Mineral products) of the Harmonized System. Duty rates are recorded for 1 country.

Find or check your HS code

Suggestions from the HS index, not a customs ruling

Describe what you ship: what it is, what it is made of, how it is processed and what it is used for. I narrow it down against the real HS hierarchy, or check a code you were given.

Or try

Description

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

Duty rates

US MFN base rate (HTS 2026, Column-1 General) — excludes Section 301 / IEEPA add-ons; not legal advice. Other countries’ rates and live duties via the EximAgent CLI.

  • USUnited States0%
    MFNas of Jan 1, 2026

Common questions

What is HS code 251200?
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
What duty rates apply to 251200?
Listed duty rates range from 0% across 1 country rate.

Browse all of Chapter 25: Salt; sulphur; earths and stone; plastering materials, lime and cement →

Go beyond the code

Find the companies shipping under 251200 — ranked by shipments recorded in US customs filings over the last 12 months.

Was this page helpful?