Magnesium Oxide for Electrical Insulation

High-purity magnesia powder pressed into ceramic insulators for heating elements. Classified HTS 2519.90.50.00 as other magnesium oxide before final ceramic forming.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+10.0%10%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

6902.10Same rate: 10%

If fired into refractory ceramic shapes

Fired magnesia ceramics are Chapter 69 refractories.

8547.10Higher: 13% vs 10%

If assembled as complete electrical insulators

Finished ceramic insulators for electrical use are Chapter 85 articles.

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Import Tips & Compliance

Purity specs (>98% MgO) and dielectric strength data support electrical grade

Import as powder, not preformed shapes which may be Chapter 85 parts

Sintering temperature info distinguishes from dead-burned

Related Products under HTS 2519.90.50.00

Caustic Calcined Magnesia Powder

Caustic calcined magnesia is magnesium oxide produced by low-temperature calcination of magnesite, resulting in a reactive powder used in chemical and fertilizer industries. It falls under HTS 2519.90.50.00 as 'other magnesium oxide, whether or not pure,' distinct from fused or dead-burned varieties due to its calcination process and reactivity.

Pharmaceutical Grade Magnesium Oxide USP

Light magnesium oxide meeting USP standards for use as an antacid and laxative in pharmaceuticals. Classified under HTS 2519.90.50.00 as other magnesium oxide, provided it derives from natural sources and is not a finished medicament.

Technical Grade Magnesium Oxide for Fertilizers

Technical magnesia powder used as a magnesium supplement in agricultural fertilizers. It qualifies under HTS 2519.90.50.00 as other magnesium oxide from natural sources, not chemically modified beyond calcination.

Reactive Magnesium Oxide for Water Treatment

Highly reactive light-burned magnesia used for pH adjustment and softening in water treatment plants. Falls under HTS 2519.90.50.00 as other magnesium oxide due to its natural origin and low-temperature processing.

Periclase Magnesium Oxide Crystals

Natural periclase crystals, consisting of nearly pure magnesium oxide, used in research and refractories. Classified in HTS 2519.90.50.00 as other magnesium oxide, whether or not pure, from mineral sources.

Animal Feed Grade Magnesium Oxide

Coarse magnesium oxide powder formulated for livestock mineral supplements to prevent grass tetany. HTS 2519.90.50.00 applies as other magnesium oxide suitable for feed but imported in bulk.