Dolomite ramming mix (HS 381600)
Dolomite ramming mix (HS 381600) has 7,387 U.S. import bill-of-lading shipment records between Mar 2018 and Aug 2026. The largest U.S. importer of Dolomite ramming mix is RHI US LTD, with 5,105 shipments, followed by RHI REFMEX S A DE C V and MAGNESITA REFRACTORIES COMPANY. The leading supplier is RHI MAGNESITA TRADE B V, with 3,750 shipments, followed by RHI MAGNESITA GMBH and MAGNESIT A S. Goods originate mainly from GERMANY and BELGIUM, arriving primarily at HOUSTON, TX. Import volume has declined 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/381600-dolomite-ramming-mix
See all 7,387 shipments of HS 381600 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 Dolomite ramming mix (HS 381600), by shipment volume. Hover a ribbon for details; click a name to open its profile.
The largest relationship is RHI MAGNESITA TRADE B V → RHI US LTD with 3,568 shipments, followed by RHI MAGNESITA GMBH → RHI US LTD (1,308) and RHI MAGNESITA TRADE B V → MAGNESITA REFRACTORIES COMPANY (112).
Top U.S. importers
| Importer | Shipments |
|---|---|
| RHI US LTD | 5,105 |
| RHI REFMEX S A DE C V | 154 |
| MAGNESITA REFRACTORIES COMPANY | 131 |
| REFRATECHNIK NORTH AMERICA INC | 99 |
| E G O NORTH AMERICA INC | 72 |
| SOCOMATRA | 59 |
| INSERTEC INDUSTRIAL S A DE C V | 52 |
| HPS NORTH AMERICA LLC | 35 |
| RHI US | 27 |
| KROSAKI USA INC | 25 |
Top suppliers
| Supplier | Shipments |
|---|---|
| RHI MAGNESITA TRADE B V | 3,750 |
| RHI MAGNESITA GMBH | 1,611 |
| MAGNESIT A S | 127 |
| CALDERYS NORDIC AB | 117 |
| REFRATECHNIK IBERICA S A | 95 |
| MAGNESITA REFRATARIOS S/A | 67 |
| REFRACTORY SOLUTIONS INSERTEC S L | 64 |
| SIFA LOGISTICS | 54 |
| E G O ELEKTRO GERAETEBAU GMBH | 52 |
| MAGNESITAS NAVARRAS S A | 46 |
Origin countries
| Country | Shipments |
|---|---|
| GERMANY | 3,075 |
| BELGIUM | 1,148 |
| YEMEN | 1,011 |
| AUSTRIA | 362 |
| SPAIN | 360 |
| TURKEY | 231 |
| SWEDEN | 142 |
| BRAZIL | 135 |
| FRANCE | 118 |
| CHINA | 112 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| HOUSTON, TX | 1,492 |
| NEW YORK/NEWARK AREA, NEWARK, NJ | 1,363 |
| NORFOLK, VA | 1,308 |
| MOBILE, AL | 1,034 |
| SAVANNAH, GA | 705 |
| NEW YORK, NY | 353 |
| BALTIMORE, MD | 243 |
| CHARLESTON, SC | 228 |
| MIAMI, FL | 181 |
| LOS ANGELES, CA | 81 |
Harmonized System classification
HS code 381600 — Dolomite ramming mix. 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.
Frequently asked questions about importing Dolomite ramming mix
Who imports Dolomite ramming mix (HS 381600)?
Based on U.S. Customs bill-of-lading records, the top U.S. importers of Dolomite ramming mix include RHI US LTD, RHI REFMEX S A DE C V, MAGNESITA REFRACTORIES COMPANY, REFRATECHNIK NORTH AMERICA INC, and E G O NORTH AMERICA INC.
Who is the largest U.S. importer of Dolomite ramming mix?
RHI US LTD is the largest U.S. importer of Dolomite ramming mix (HS 381600), with 5,105 bill-of-lading shipment records.
Who are the top suppliers of Dolomite ramming mix?
Leading suppliers shipping Dolomite ramming mix (HS 381600) to the U.S. include RHI MAGNESITA TRADE B V, RHI MAGNESITA GMBH, MAGNESIT A S, CALDERYS NORDIC AB, and REFRATECHNIK IBERICA S A.
How many U.S. shipments of Dolomite ramming mix are there?
ImportDoor has 7,387 U.S. import shipment records under HS code 381600, spanning Mar 2018 to Aug 2026.
Where is Dolomite ramming mix imported from?
Dolomite ramming mix is imported into the U.S. primarily from GERMANY, BELGIUM, and YEMEN.
Find Dolomite ramming mix importers & suppliers
Get the complete list of U.S. importers and global suppliers for HS 381600, with contact details and container-level shipment records on ImportDoor.
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