Potassium hydroxide (Caustic potash) (HS 281520)
Potassium hydroxide (Caustic potash) (HS 281520) has 2,734 U.S. import bill-of-lading shipment records between Aug 2019 and Aug 2026. The largest U.S. importer of Potassium hydroxide (Caustic potash) is KORECHEM INC, with 497 shipments, followed by OCI INTERNATIONAL INC and UKT CHICAGO INC. The leading supplier is UNID CO LTD, with 946 shipments, followed by DEAD SEA WORKS LTD and CANPOTEX LIMITED. Goods originate mainly from REPUBLIC OF KOREA and ISRAEL, arriving primarily at NEW ORLEANS, LA. Import volume has held steady 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/281520-potassium-hydroxide-caustic-potash
See all 2,734 shipments of HS 281520 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 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 487 shipments, followed by UNID CO LTD → OCI INTERNATIONAL INC (156) and DEAD SEA WORKS LTD → GROWMARK INC (85).
Top U.S. importers
| Importer | Shipments |
|---|---|
| KORECHEM INC | 497 |
| OCI INTERNATIONAL INC | 156 |
| UKT CHICAGO INC | 112 |
| EUROCHEM NORTH AMERICA CORP | 103 |
| GROWMARK INC | 86 |
| OAKLEY FERTILIZER INC | 67 |
| KANTO CORP | 62 |
| APAC CHEMICAL CORP | 60 |
| VERSUM MATERIALS US LLC | 55 |
| FOOD SECURITY SOLUTIONS INC | 47 |
Top suppliers
| Supplier | Shipments |
|---|---|
| UNID CO LTD | 946 |
| DEAD SEA WORKS LTD | 290 |
| CANPOTEX LIMITED | 159 |
| OCI INTERNATIONAL INC | 149 |
| FOOD SECURITY SOLUTIONS DMCC | 104 |
| KANTO CHEMICAL CO INC | 60 |
| TOAGOSEI CO LTD | 56 |
| EUROCHEM USOLSKY POTASH COMPLEX LIMITED | 50 |
| FERROSUR SA DE C V | 43 |
| SKYSTEP TRADE LTD | 41 |
Origin countries
| Country | Shipments |
|---|---|
| REPUBLIC OF KOREA | 1,174 |
| ISRAEL | 279 |
| CHINA | 268 |
| RUSSIA | 241 |
| JAPAN | 162 |
| CANADA | 156 |
| ITALY | 69 |
| GERMANY | 62 |
| BELGIUM | 53 |
| MEXICO | 47 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| NEW ORLEANS, LA | 373 |
| SEATTLE, WA | 358 |
| HOUSTON, TX | 251 |
| OAKLAND, CA | 199 |
| LOS ANGELES, CA | 194 |
| LONG BEACH, CA | 181 |
| PORTLAND, OR | 158 |
| TACOMA, WA | 152 |
| NEW YORK/NEWARK AREA, NEWARK, NJ | 141 |
| EVERETT, WA | 107 |
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.
More products under HS 2815
Other six-digit codes in HS 2815: Sodium hydroxide (Caustic soda), with their U.S. import volume.
| Product (HS code) | Shipments |
|---|---|
| Sodium hydroxide (Caustic soda), solid (281511) | 63,315 |
| In aqueous solution (Soda lye or liquid soda) (281512) | 7,355 |
| Peroxides of sodium or potassium (281530) | 159 |
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 497 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, CANPOTEX LIMITED, OCI INTERNATIONAL INC, and FOOD SECURITY SOLUTIONS DMCC.
How many U.S. shipments of Potassium hydroxide (Caustic potash) are there?
ImportDoor has 2,734 U.S. import shipment records under HS code 281520, spanning Aug 2019 to Aug 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.
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