Natural magnesium carbonate (magnesite)
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: > Natural magnesium carbonate (magnesite)
Duty Rate (from China)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2519.10.00.00
Raw Magnesite Ore
Natural magnesium carbonate ore extracted from magnesite deposits, typically containing 85-95% MgCO3 with impurities like silica and iron oxides. It falls under HTS 2519.10.00.00 as unprocessed natural magnesite used primarily as feedstock for refractory and chemical production.
Magnesite Lump Rock
Coarsely crushed natural magnesite in lump form (typically 6-150mm), directly from mining operations without beneficiation. Classified under HTS 2519.10.00.00 as it remains natural magnesium carbonate suitable for further processing into refractories.
Floatation Grade Magnesite
Beneficiated magnesite concentrate from froth flotation process, achieving 95%+ MgCO3 purity while remaining chemically unchanged natural carbonate. HTS 2519.10.00.00 applies as physical separation doesn't alter mineral composition.
Metallurgical Grade Magnesite
Medium-purity natural magnesite (90% MgCO3) specifically sized for dead-burning into refractory bricks used in steel furnaces. Remains under HTS 2519.10.00.00 as the uncalcined natural carbonate mineral.
Chemical Grade Magnesite Powder
Micronized natural magnesite ground to 10-50 micron particle size for fertilizer and chemical applications, retaining full MgCO3 composition. HTS 2519.10.00.00 covers this physically processed but chemically unchanged mineral.
Dead-Burn Refractory Magnesite
Large-particle natural magnesite (2-6mm) used directly as soil amendment in agriculture to supply magnesium and neutralize acidity. Classified HTS 2519.10.00.00 as unprocessed magnesium carbonate mineral.
Greek Magnesite Ore
Premium cryptocrystalline magnesite from Kozani deposits in Greece, known for 97% MgCO3 purity and low impurities. HTS 2519.10.00.00 as natural magnesium carbonate from specific high-quality geological source.
Chinese Magnesite Concentrate
Flotation concentrate from Liaoning province China, typically 94% MgCO3 with controlled silica for export markets. Falls under HTS 2519.10.00.00 despite origin quotas and trade remedy orders.
Brazilian Compact Magnesite
Dense, compact magnesite from Bahia deposits Brazil, valued for high bulk density in refractory applications. Natural magnesium carbonate under HTS 2519.10.00.00 with characteristic low porosity.
Turkish Magnesite Splittings
High-brightness cryptocrystalline magnesite from Eskisehir Turkey, used in paint fillers and plastics. HTS 2519.10.00.00 as natural carbonate with whiteness >90% on Hunter scale.