Natural magnesium carbonate (magnesite), other (HS 251990)
Natural magnesium carbonate (magnesite), other (HS 251990) has 2,811 U.S. import bill-of-lading shipment records between Apr 2019 and Jun 2026. The largest U.S. importer of Natural magnesium carbonate (magnesite), other is MAGNESITA REFRACTORIES COMPANY, with 130 shipments, followed by ALLIED MINERAL PRODUCTS INC and KISUMA AMERICAS INC. The leading supplier is KYOWA CHEMICAL INDUSTRIAL CO LTD, with 137 shipments, followed by FLUORIT TEPLICE S R O and QUIMICA DEL REY CALZADA MANUELGOMEZ MORIN. 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 June 2026
Shipments over time (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 97 shipments, followed by MAGNESITAS NAVARRAS S A → TIMAB USA INC (62) and NICHE FUSED MAGNESIA LTD → IFM GREENEVILLE INC (59).
Top U.S. importers
| Importer | Shipments |
|---|---|
| MAGNESITA REFRACTORIES COMPANY | 130 |
| ALLIED MINERAL PRODUCTS INC | 114 |
| KISUMA AMERICAS INC | 101 |
| TIMAB USA INC | 94 |
| RESCO PRODUCTS INC | 74 |
Top suppliers
| Supplier | Shipments |
|---|---|
| KYOWA CHEMICAL INDUSTRIAL CO LTD | 137 |
| FLUORIT TEPLICE S R O | 129 |
| QUIMICA DEL REY CALZADA MANUELGOMEZ MORIN | 124 |
| MAGNESITAS NAVARRAS S A | 122 |
| NICHE FUSED MAGNESIA LTD | 96 |
Origin countries
| Country | Shipments |
|---|---|
| CHINA | 772 |
| JAPAN | 438 |
| MEXICO | 313 |
| SPAIN | 229 |
| REPUBLIC OF KOREA | 132 |
| CZECH REPUBLIC | 125 |
| GERMANY | 114 |
| TURKEY | 114 |
| BRAZIL | 110 |
| UNITED KINGDOM | 91 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| HOUSTON, TX | 448 |
| NEW YORK/NEWARK AREA, NEWARK, NJ | 377 |
| BALTIMORE, MD | 317 |
| LOS ANGELES, CA | 276 |
| GRAMERCY, LA | 256 |
| NORFOLK, VA | 163 |
| NEW ORLEANS, LA | 154 |
| LONG BEACH, CA | 105 |
| CHARLESTON, SC | 102 |
| SEATTLE, WA | 102 |
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.
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 130 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 KYOWA CHEMICAL INDUSTRIAL CO LTD, FLUORIT TEPLICE S R O, QUIMICA DEL REY CALZADA MANUELGOMEZ MORIN, MAGNESITAS NAVARRAS S A, and NICHE FUSED MAGNESIA LTD.
How many U.S. shipments of Natural magnesium carbonate (magnesite), other are there?
ImportDoor has 2,811 U.S. import shipment records under HS code 251990, spanning Apr 2019 to Jun 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.
Start for free