Natural magnesium carbonate (magnesite) (HS 251910)
Natural magnesium carbonate (magnesite) (HS 251910) has 654 U.S. import bill-of-lading shipment records between Jan 2020 and Aug 2026. The largest U.S. importer of Natural magnesium carbonate (magnesite) is KENKO INTERNATIONAL INC, with 35 shipments, followed by MAGNA REFRACTARIOS MEXICO and MAGNESITA REFRACTORIES COMPANY. The leading supplier is MAGNESITAS NAVARRAS S A, with 50 shipments, followed by QUIMICA DEL REY S A DE C V and KENKO CORP. Goods originate mainly from CHINA and SPAIN, arriving primarily at MIAMI, FL. Import volume has risen over the past 12 months versus the prior year.
Sourced from U.S. Customs bill of lading data · Updated monthly · Data through August 2026Cite as: ImportDoor, U.S. Customs bill of lading data (data through August 2026), https://www.importdoor.com/products/251910-natural-magnesium-carbonate-magnesite
See all 654 shipments of HS 251910 with dates, ports, consignees, filters and CSV export in the ImportDoor dashboard.
Open in dashboardShipments by month (last 24 months)
Trade flow: top suppliers → U.S. importers
The strongest supplier-importer relationships for Natural magnesium carbonate (magnesite) (HS 251910), by shipment volume. Hover a ribbon for details; click a name to open its profile.
The largest relationship is KENKO CORP → KENKO INTERNATIONAL INC with 35 shipments, followed by MAGNESITAS NAVARRAS S A → MAGNA REFRACTARIOS MEXICO (19) and MAGNESITAS NAVARRAS S A → DEACERO SAPI DE C V (15).
Top U.S. importers
| Importer | Shipments |
|---|---|
| KENKO INTERNATIONAL INC | 35 |
| MAGNA REFRACTARIOS MEXICO | 25 |
| MAGNESITA REFRACTORIES COMPANY | 20 |
| RAUCH NORTH AMERICA INC | 20 |
| DEACERO SAPI DE C V | 15 |
| CARL SPAETER GMBH | 14 |
| GARRISON MINERALS LLC | 13 |
| MEXICHEM COMPUESTOS S A DE C V | 13 |
| RESCO PRODUCTS INC | 13 |
| STAUBER CALIFORNIA | 11 |
Top suppliers
| Supplier | Shipments |
|---|---|
| MAGNESITAS NAVARRAS S A | 50 |
| QUIMICA DEL REY S A DE C V | 38 |
| KENKO CORP | 37 |
| GRECIAN MAGNESITE SA | 30 |
| KTT CORP | 25 |
| YUNCHENG CHEMICAL INDUSTRIAL CO LTD | 24 |
| GRECIAN MAGNESITE | 22 |
| PENGLAI MARINE SHANDONG CO LTD | 20 |
| MAGNESITA MINERACAO S A | 18 |
| SCORA S A | 17 |
Origin countries
| Country | Shipments |
|---|---|
| CHINA | 133 |
| SPAIN | 86 |
| GREECE | 83 |
| JAPAN | 76 |
| TAIWAN | 52 |
| MEXICO | 44 |
| BRAZIL | 42 |
| ISRAEL | 25 |
| BELGIUM | 16 |
| GERMANY | 16 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| MIAMI, FL | 113 |
| LOS ANGELES, CA | 109 |
| NEW YORK/NEWARK AREA, NEWARK, NJ | 99 |
| HOUSTON, TX | 65 |
| BALTIMORE, MD | 57 |
| LONG BEACH, CA | 50 |
| NORFOLK, VA | 31 |
| SAVANNAH, GA | 29 |
| SEATTLE, WA | 22 |
| CHARLESTON, SC | 18 |
Harmonized System classification
HS code 251910 — Natural magnesium carbonate (magnesite). The Harmonized System is the international standard for classifying traded goods; U.S. Customs records this 6-digit code on every bill of lading.
Not sure this is the right code? Search all 5,700+ subheadings with the free HS code lookup, or see which product categories are growing in our quarterly State of U.S. Imports reports.
More products under HS 2519
Other six-digit codes in HS 2519: Natural magnesium carbonate (magnesite), with their U.S. import volume.
| Product (HS code) | Shipments |
|---|---|
| Natural magnesium carbonate (magnesite), other (251990) | 3,254 |
Frequently asked questions about importing Natural magnesium carbonate (magnesite)
Who imports Natural magnesium carbonate (magnesite) (HS 251910)?
Based on U.S. Customs bill-of-lading records, the top U.S. importers of Natural magnesium carbonate (magnesite) include KENKO INTERNATIONAL INC, MAGNA REFRACTARIOS MEXICO, MAGNESITA REFRACTORIES COMPANY, RAUCH NORTH AMERICA INC, and DEACERO SAPI DE C V.
Who is the largest U.S. importer of Natural magnesium carbonate (magnesite)?
KENKO INTERNATIONAL INC is the largest U.S. importer of Natural magnesium carbonate (magnesite) (HS 251910), with 35 bill-of-lading shipment records.
Who are the top suppliers of Natural magnesium carbonate (magnesite)?
Leading suppliers shipping Natural magnesium carbonate (magnesite) (HS 251910) to the U.S. include MAGNESITAS NAVARRAS S A, QUIMICA DEL REY S A DE C V, KENKO CORP, GRECIAN MAGNESITE SA, and KTT CORP.
How many U.S. shipments of Natural magnesium carbonate (magnesite) are there?
ImportDoor has 654 U.S. import shipment records under HS code 251910, spanning Jan 2020 to Aug 2026.
Where is Natural magnesium carbonate (magnesite) imported from?
Natural magnesium carbonate (magnesite) is imported into the U.S. primarily from CHINA, SPAIN, and GREECE.
Find Natural magnesium carbonate (magnesite) importers & suppliers
Get the complete list of U.S. importers and global suppliers for HS 251910, with contact details and container-level shipment records on ImportDoor.
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