Potassium hydroxide (Caustic potash) (HS 281520)
Potassium hydroxide (Caustic potash) (HS 281520) has 2,434 U.S. import bill-of-lading shipment records between Aug 2019 and Jul 2026. The largest U.S. importer of Potassium hydroxide (Caustic potash) is KORECHEM INC, with 462 shipments, followed by OCI INTERNATIONAL INC and UKT CHICAGO INC. The leading supplier is UNID CO LTD, with 831 shipments, followed by DEAD SEA WORKS LTD and OCI INTERNATIONAL INC. Goods originate mainly from REPUBLIC OF KOREA and ISRAEL, arriving primarily at NEW ORLEANS, LA. 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 July 2026
Shipments over time (last 24 months)
Trade flow: top suppliers → U.S. importers
The strongest supplier-importer relationships for Potassium hydroxide (Caustic potash) (HS 281520), by shipment volume. Hover a ribbon for details; click a name to open its profile.
The largest relationship is UNID CO LTD → KORECHEM INC with 453 shipments, followed by UNID CO LTD → OCI INTERNATIONAL INC (138) and DEAD SEA WORKS LTD → GROWMARK INC (77).
Top U.S. importers
| Importer | Shipments |
|---|---|
| KORECHEM INC | 462 |
| OCI INTERNATIONAL INC | 138 |
| UKT CHICAGO INC | 105 |
| EUROCHEM NORTH AMERICA CORP | 96 |
| GROWMARK INC | 78 |
Top suppliers
| Supplier | Shipments |
|---|---|
| UNID CO LTD | 831 |
| DEAD SEA WORKS LTD | 275 |
| OCI INTERNATIONAL INC | 129 |
| CANPOTEX LIMITED | 123 |
| FOOD SECURITY SOLUTIONS DMCC | 92 |
Origin countries
| Country | Shipments |
|---|---|
| REPUBLIC OF KOREA | 1,032 |
| ISRAEL | 264 |
| CHINA | 231 |
| RUSSIA | 226 |
| JAPAN | 151 |
| CANADA | 122 |
| ITALY | 61 |
| GERMANY | 53 |
| BELGIUM | 50 |
| MEXICO | 46 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| NEW ORLEANS, LA | 360 |
| SEATTLE, WA | 328 |
| HOUSTON, TX | 223 |
| LOS ANGELES, CA | 171 |
| OAKLAND, CA | 170 |
| TACOMA, WA | 143 |
| LONG BEACH, CA | 138 |
| PORTLAND, OR | 137 |
| NEW YORK/NEWARK AREA, NEWARK, NJ | 126 |
| EVERETT, WA | 97 |
Harmonized System classification
HS code 281520 — Potassium hydroxide (Caustic potash). 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 Potassium hydroxide (Caustic potash)
Who imports Potassium hydroxide (Caustic potash) (HS 281520)?
Based on U.S. Customs bill-of-lading records, the top U.S. importers of Potassium hydroxide (Caustic potash) include KORECHEM INC, OCI INTERNATIONAL INC, UKT CHICAGO INC, EUROCHEM NORTH AMERICA CORP, and GROWMARK INC.
Who is the largest U.S. importer of Potassium hydroxide (Caustic potash)?
KORECHEM INC is the largest U.S. importer of Potassium hydroxide (Caustic potash) (HS 281520), with 462 bill-of-lading shipment records.
Who are the top suppliers of Potassium hydroxide (Caustic potash)?
Leading suppliers shipping Potassium hydroxide (Caustic potash) (HS 281520) to the U.S. include UNID CO LTD, DEAD SEA WORKS LTD, OCI INTERNATIONAL INC, CANPOTEX LIMITED, and FOOD SECURITY SOLUTIONS DMCC.
How many U.S. shipments of Potassium hydroxide (Caustic potash) are there?
ImportDoor has 2,434 U.S. import shipment records under HS code 281520, spanning Aug 2019 to Jul 2026.
Where is Potassium hydroxide (Caustic potash) imported from?
Potassium hydroxide (Caustic potash) is imported into the U.S. primarily from REPUBLIC OF KOREA, ISRAEL, and CHINA.
Find Potassium hydroxide (Caustic potash) importers & suppliers
Get the complete list of U.S. importers and global suppliers for HS 281520, with contact details and container-level shipment records on ImportDoor.
Start for free