# 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.

> Section V · Mineral products
> Chapter 25 · Salt; sulphur; earths and stone; plastering materials, lime and cement

**HS code:** `251200`

## 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

| Country | Rate | Programme |
| --- | --- | --- |
| US United States | 0% | MFN |

Rates effective as of 2026-01-01.

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Source: https://hscode.eximagent.ai/25/251200
Last updated: 2026-06-03
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