2519.90.50.00
Other
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
Column 1 (General / MFN)
Free
Column 2 (Non-NTR)
15.4¢/kg
The rates above are statutory column rates. Trade remedies in Chapter 99 (Section 301, 232, IEEPA, reciprocal) and FTA preferences can change the duty owed on a given entry — see below.
Trade measures (Chapter 99)
9903.90.08
35%
Articles the product of the Russian Federation, as provided for in U.S. note 30(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 30(b) to this subchapter
Applies to origin: RU, BY
Effective from April 5, 2025
9903.03.01
The duty provided in the applicable subheading + 10%
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Effective from February 24, 2026 through July 24, 2026
9903.03.02
The duty provided in the applicable subheading
Articles the product of any country that (1) were loaded onto a vessel at the port of loading and in transit on the final mode of transit prior to entry into the United States, before 12:01 a.m. eastern standard time on February 24, 2026; and (2) are entered for consumption, or withdrawn from warehouse for consumption, before 12:01 a.m. eastern standard time on February 28, 2026
Effective from February 24, 2026 through July 24, 2026
9903.03.03
The duty provided in the applicable subheading
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Effective from February 24, 2026 through July 24, 2026
9903.03.04
The duty provided in the applicable subheading
Articles the product of any country, as provided for in subdivision (aa)(iii) of U.S. note 2 to this subchapter
Effective from February 24, 2026 through July 24, 2026
9903.03.05
The duty provided in the applicable subheading
Articles of civil aircraft (all aircraft other than military aircraft); their engines, parts and components; their other parts, components and subassemblies; and ground flight simulators and their parts and components of any country, provided for in subdivision (aa)(iv) of U.S. note 2 to this subchapter
Effective from February 24, 2026 through July 24, 2026
9903.03.06
The duty provided in the applicable subheading
Articles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter
Effective from February 24, 2026 through July 24, 2026
9903.03.07
The duty provided in the applicable subheading
Articles the product of Canada, as provided for in subdivision (aa)(vi) of U.S. note 2 to this subchapter
Applies to origin: CA
Effective from February 24, 2026 through July 24, 2026
9903.03.08
The duty provided in the applicable subheading
Articles the product of Mexico, as provided for in subdivision (aa)(vii) of U.S. note 2 to this subchapter
Applies to origin: MX
Effective from February 24, 2026 through July 24, 2026
9903.03.09
The duty provided in the applicable subheading
Articles of textiles or apparel the product of Costa Rica, the Dominican Republic, El Salvador, Guatemala, Honduras or Nicaragua, as provided for in subdivision (aa)(viii) of U.S. note 2 to this subchapter
Applies to origin: CR, SV, GT, HN, NI, DO
Effective from February 24, 2026 through July 24, 2026
9903.03.10
The duty provided in the applicable subheading
Articles that are donations, by persons subject to the jurisdiction of the United States, such as food, clothing and medicine, intended to be used to relieve human suffering
Effective from February 24, 2026 through July 24, 2026
9903.03.11
The duty provided in the applicable subheading
Articles that are informational materials, including but not limited to publications, films, posters, phonograph records, photographs, microfilms, microfiche, tapes, compact disks, CD ROMs, artworks and news wire feeds
Applies to origin: IL
Effective from February 24, 2026 through July 24, 2026
Related CBP rulings
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 first product is described as Tripotassium Phosphate (CAS # 7778-53-2), the second product is described as Monopotassium Phosphate (CAS# 7778-77-0), the third product is described as Magnesium Hydroxide (CAS# 1309-42-8), the fourth prod
The tariff classification of magnesium oxide from ChinaDear Ms. Lin:
This sample was submitted to our Customs laboratory for analysis. Laboratory analysis of the sample confirms that this merchandise is magnesium oxide.
The tariff classification of two forms of magnesium oxide from Japan
You indicated in a telephone conversation that although you submitted three stages/forms of magnesium oxide, you are only interested in the classification of the first two forms. The last form, which is the finished product, will be produce
The tariff classification of magnesium oxide from Canada
The laboratory confirmed the product to be caustic calcined magnesite.
The tariff classification of magnesium oxide from Japan
Starmag P and Starmag PG, which were referenced as the tradename for magnesium oxide, were sent to our Customs laboratory for analysis. The laboratory confirmed the product to be magnesium oxide.
The tariff classification of magnesium oxide from Holland
The laboratory confirmed the product to be calcined magnesium oxide.
Revocation of New York Ruling Letter (NYRL) 849858; Magnesium Oxide
In NYRL 849858, the merchandise was briefly described as magnesium oxide. ISSUE: The issue concerns the proper classification of magnesium oxide.
The tariff classification of frozen veal cutlets from New Zealand.
The product in question, frozen veal cutlets, be produced from veal round and loin cuts. This meat would be imported into Mexico where the leg and loin muscles will be trimmed of all fat and tissue and processed into two ounce portions. Aft
The tariff classification of magnesite ore from Greece and China.
The tariff classification of magnesite ore from Greece and China.
Other codes in heading 2519
Duty by origin country
The rate above is the statutory base. Total landed duty depends on origin — see the calculated rate for 2519.90.50.00 from each major US trading partner.
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