# 251990 — Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered)…: Other

HS code 251990 classifies Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered)…: Other. 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:** `251990`

## Description

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

## 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/25/251990
Last updated: 2026-06-03
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