2519.90.10.00—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, fused magnesia and dead-burned (sintered) magnesiaTandom · Duty calculator
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HTS 2519.90.10.00 is the U.S. Harmonized Tariff Schedule classification for 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, fused magnesia and dead-burned (sintered) magnesia. It's a 10-digit statistical line in Chapter 25: Salt; sulfur; earths and stone; plastering materials, lime and cement, Section V: Mineral Products, used by U.S. Customs and Border Protection to determine the duty rate at entry. No Chapter 99 tariff modifications (Section 301, Section 232, IEEPA) or AD/CVD orders currently flag this code in Tandom's catalog.
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Past CBP decisions classifying real products under this HTS code. Useful precedent when classifying a similar product — each ruling shows how CBP interpreted the code for a specific case.
The tariff classification of Tripotassium Phosphate (CAS # 7778-53-2), Monopotassium Phosphate (CAS# 7778-77-0), Magnesium Hydroxide (CAS# 1309-42-8), Xanthan Gum (X-Gum), and Fused Magnesium Oxide.
The tariff classification of magnesium oxide from ChinaDear Ms. Lin:
The tariff classification of two forms of magnesium oxide from Japan
Revocation of New York Ruling Letter (NYRL) 849858; Magnesium Oxide
The tariff classification of magnesium oxide from Holland
Source: CBP CROSS (view all rulings on rulings.cbp.gov →)
HTS 2519.90.10.00 is the U.S. Harmonized Tariff Schedule classification for 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, fused magnesia and dead-burned (sintered) magnesia. It belongs to Chapter 25 of the HTSUS.
The general (Column 1) duty rate for HTS 2519.90.10.00 is Free. This is the most-favored-nation (MFN) rate that applies to imports from World Trade Organization member countries.
The Column 2 rate for HTS 2519.90.10.00 is 1.7¢/kg. This rate applies to imports from countries that do not have normal trade relations with the United States (currently Cuba and North Korea).
No active Chapter 99 tariff overlays (Section 301, Section 232, IEEPA reciprocal, etc.) currently flag HTS 2519.90.10.00 in Tandom's catalog. Use the calculator's date + origin inputs to confirm against any retroactive overlay you may be filing.
No active AD/CVD orders currently flag HTS 2519.90.10.00 in Tandom's catalog. Tandom monitors Federal Register notices daily; a flag will appear here within 24h of any new order's publication.
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