Question 1

What does HTS 2519.90 cover?

Accepted Answer

HTS 2519.90 is a 6-digit subheading of the U.S. Harmonized Tariff Schedule covering 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. It belongs to Chapter 25 and rolls up 3 10-digit statistical lines that brokers actually file at entry.

Question 2

What is the duty rate for HTS 2519.90?

Accepted Answer

Every 10-digit line under HTS 2519.90 carries a general (Column 1) duty rate of Free. Chapter 99 flags and potentially relevant AD/CVD order flags are shown at the per-line level; applicability depends on the shipment facts, written scope, and entry date.

Question 3

How do I find the right 10-digit line under HTS 2519.90?

Accepted Answer

U.S. Customs requires entries to be filed at the 10-digit statistical level — the broader subheading HTS 2519.90 is not directly fileable. Match your product description to the most specific 10-digit line in the list on this page; if multiple lines could apply, the General Rules of Interpretation (GRIs) and chapter notes determine which one governs.

Question 4

Are there potentially relevant AD/CVD order flags under HTS 2519.90?

Accepted Answer

Tandom's current catalog view links no potentially relevant AD/CVD (antidumping or countervailing duty) order flags to lines under HTS 2519.90. Check current Commerce scope materials and Federal Register notices before relying on an HTS-only screen.

`2519.90`—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

Plain-English explanation

10-digit lines under 2519.90(3)

Frequently asked questions

What does HTS 2519.90 cover?

What is the duty rate for HTS 2519.90?

How do I find the right 10-digit line under HTS 2519.90?

Are there potentially relevant AD/CVD order flags under HTS 2519.90?

Learn more

Trade compliance APIs in broker workflows

Bulk-classify SKU descriptions with the Tandom HTS Classifier API

How Chapter 99 tariff layers stack on a single entry

Write a Claude or ChatGPT prompt for broker-grade HTS classification

What changed for low-value shipments after de minimis suspension

Extract HTS-eligible fields from commercial invoices

2519.90—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

Plain-English explanation

10-digit lines under 2519.90(3)

Frequently asked questions

What does HTS 2519.90 cover?

What is the duty rate for HTS 2519.90?

How do I find the right 10-digit line under HTS 2519.90?

Are there potentially relevant AD/CVD order flags under HTS 2519.90?

Learn more

Trade compliance APIs in broker workflows

Bulk-classify SKU descriptions with the Tandom HTS Classifier API

How Chapter 99 tariff layers stack on a single entry

Write a Claude or ChatGPT prompt for broker-grade HTS classification

What changed for low-value shipments after de minimis suspension

Extract HTS-eligible fields from commercial invoices

`2519.90`—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