Natural magnesium carbonate (magnesite), other (HS 251990)
Natural magnesium carbonate (magnesite), other (HS 251990) has 3,254 U.S. import bill-of-lading shipment records between Apr 2019 and Aug 2026. The largest U.S. importer of Natural magnesium carbonate (magnesite), other is MAGNESITA REFRACTORIES COMPANY, with 161 shipments, followed by ALLIED MINERAL PRODUCTS INC and KISUMA AMERICAS INC. The leading supplier is FLUORIT TEPLICE S R O, with 155 shipments, followed by KYOWA CHEMICAL INDUSTRIAL CO LTD and MAGNESITAS NAVARRAS S A. Goods originate mainly from CHINA and JAPAN, arriving primarily at HOUSTON, TX. 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/251990-natural-magnesium-carbonate-magnesite-other
See all 3,254 shipments of HS 251990 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), other (HS 251990), by shipment volume. Hover a ribbon for details; click a name to open its profile.
The largest relationship is KYOWA CHEMICAL INDUSTRIAL CO LTD → KISUMA AMERICAS INC with 111 shipments, followed by MAGNESITAS NAVARRAS S A → TIMAB USA INC (74) and NICHE FUSED MAGNESIA LTD → IFM GREENEVILLE INC (67).
Top U.S. importers
| Importer | Shipments |
|---|---|
| MAGNESITA REFRACTORIES COMPANY | 161 |
| ALLIED MINERAL PRODUCTS INC | 141 |
| KISUMA AMERICAS INC | 116 |
| TIMAB USA INC | 110 |
| RESCO PRODUCTS INC | 77 |
| MINTEQ INTERNATIONAL INC | 76 |
| IFM GREENEVILLE INC | 68 |
| Y AS INC | 67 |
| CARL SPAETER GMBH | 57 |
| ESAB HANOVER WAREHOUSE | 52 |
Top suppliers
| Supplier | Shipments |
|---|---|
| FLUORIT TEPLICE S R O | 155 |
| KYOWA CHEMICAL INDUSTRIAL CO LTD | 154 |
| MAGNESITAS NAVARRAS S A | 137 |
| QUIMICA DEL REY CALZADA MANUELGOMEZ MORIN | 125 |
| NICHE FUSED MAGNESIA LTD | 113 |
| QUIMICA DEL REY SA DE CV | 97 |
| KENKO CORP | 81 |
| DALIAN YIMING CO LTD | 71 |
| KTT CORP | 69 |
| MAGNESITA MINERACAO S A | 68 |
Origin countries
| Country | Shipments |
|---|---|
| CHINA | 939 |
| JAPAN | 482 |
| MEXICO | 340 |
| SPAIN | 247 |
| REPUBLIC OF KOREA | 151 |
| CZECH REPUBLIC | 149 |
| TURKEY | 137 |
| GERMANY | 135 |
| BRAZIL | 128 |
| UNITED KINGDOM | 101 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| HOUSTON, TX | 492 |
| NEW YORK/NEWARK AREA, NEWARK, NJ | 448 |
| BALTIMORE, MD | 377 |
| GRAMERCY, LA | 319 |
| LOS ANGELES, CA | 308 |
| NORFOLK, VA | 186 |
| NEW ORLEANS, LA | 177 |
| LONG BEACH, CA | 129 |
| SEATTLE, WA | 121 |
| TACOMA, WA | 110 |
Harmonized System classification
HS code 251990 — Natural magnesium carbonate (magnesite), other. 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) (251910) | 654 |
Frequently asked questions about importing Natural magnesium carbonate (magnesite), other
Who imports Natural magnesium carbonate (magnesite), other (HS 251990)?
Based on U.S. Customs bill-of-lading records, the top U.S. importers of Natural magnesium carbonate (magnesite), other include MAGNESITA REFRACTORIES COMPANY, ALLIED MINERAL PRODUCTS INC, KISUMA AMERICAS INC, TIMAB USA INC, and RESCO PRODUCTS INC.
Who is the largest U.S. importer of Natural magnesium carbonate (magnesite), other?
MAGNESITA REFRACTORIES COMPANY is the largest U.S. importer of Natural magnesium carbonate (magnesite), other (HS 251990), with 161 bill-of-lading shipment records.
Who are the top suppliers of Natural magnesium carbonate (magnesite), other?
Leading suppliers shipping Natural magnesium carbonate (magnesite), other (HS 251990) to the U.S. include FLUORIT TEPLICE S R O, KYOWA CHEMICAL INDUSTRIAL CO LTD, MAGNESITAS NAVARRAS S A, QUIMICA DEL REY CALZADA MANUELGOMEZ MORIN, and NICHE FUSED MAGNESIA LTD.
How many U.S. shipments of Natural magnesium carbonate (magnesite), other are there?
ImportDoor has 3,254 U.S. import shipment records under HS code 251990, spanning Apr 2019 to Aug 2026.
Where is Natural magnesium carbonate (magnesite), other imported from?
Natural magnesium carbonate (magnesite), other is imported into the U.S. primarily from CHINA, JAPAN, and MEXICO.
Find Natural magnesium carbonate (magnesite), other importers & suppliers
Get the complete list of U.S. importers and global suppliers for HS 251990, with contact details and container-level shipment records on ImportDoor.
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