Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms (HS 391400)
Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms (HS 391400) has 9,850 U.S. import bill-of-lading shipment records between Jan 2020 and Aug 2026. The largest U.S. importer of Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms is THERMAX INC, with 1,363 shipments, followed by ION EXCHANGE LLC and PUROLITE CORP. The leading supplier is THERMAX LIMITED, with 1,533 shipments, followed by KINGDOM CHEMICALS CO LTD and PUROLITE CHINA CO LTD. Goods originate mainly from CHINA and INDIA, arriving primarily at NEW YORK/NEWARK AREA, NEWARK, NJ. 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/391400-ion-exchangers-based-on-polymers-of-headings-3901-to-3913-in-primary-forms
See all 9,850 shipments of HS 391400 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 Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms (HS 391400), by shipment volume. Hover a ribbon for details; click a name to open its profile.
The largest relationship is THERMAX LIMITED → THERMAX INC with 1,362 shipments, followed by ION EXCHANGE INDIA LTD → ION EXCHANGE LLC (507) and PUROLITE CHINA CO LTD → PUROLITE CORP (459).
Top U.S. importers
| Importer | Shipments |
|---|---|
| THERMAX INC | 1,363 |
| ION EXCHANGE LLC | 826 |
| PUROLITE CORP | 531 |
| RESINTECH INC | 413 |
| GRAVER TECHNOLOGIES | 389 |
| DDP SPECIALTY ELECTRONIC MATERIALS US 5 LLC | 241 |
| GENERAL TECHNOLOGIES A | 179 |
| GLOBAL AQUA TECHNOLOGY | 150 |
| SYSTEMATIX COMPANY | 149 |
| ECOWATER SYSTEMS LLC | 141 |
Top suppliers
| Supplier | Shipments |
|---|---|
| THERMAX LIMITED | 1,533 |
| KINGDOM CHEMICALS CO LTD | 770 |
| PUROLITE CHINA CO LTD | 667 |
| PURE RESIN CO LTD | 638 |
| ION EXCHANGE INDIA LTD | 527 |
| ION EXCHANGE INDIA LIMITED | 436 |
| SUNRESIN NEW MATERIALS CO LTD | 366 |
| SPECIALTY ELECTRONIC MATERIALS | 293 |
| RJFLTP GT BEIJING CO LTD | 225 |
| AUCHTEL PRODUCTS LTD | 150 |
Origin countries
| Country | Shipments |
|---|---|
| CHINA | 4,705 |
| INDIA | 2,755 |
| BELGIUM | 359 |
| JAPAN | 213 |
| REPUBLIC OF KOREA | 197 |
| FRANCE | 184 |
| ROMANIA | 183 |
| GERMANY | 182 |
| IRELAND | 111 |
| ITALY | 87 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| NEW YORK/NEWARK AREA, NEWARK, NJ | 3,489 |
| LOS ANGELES, CA | 1,101 |
| HOUSTON, TX | 1,097 |
| LONG BEACH, CA | 1,060 |
| SAVANNAH, GA | 684 |
| NORFOLK, VA | 506 |
| NEW YORK, NY | 430 |
| TACOMA, WA | 395 |
| SEATTLE, WA | 231 |
| PHILADELPHIA, PA | 208 |
Harmonized System classification
HS code 391400 — Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms. 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 Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms
Who imports Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms (HS 391400)?
Based on U.S. Customs bill-of-lading records, the top U.S. importers of Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms include THERMAX INC, ION EXCHANGE LLC, PUROLITE CORP, RESINTECH INC, and GRAVER TECHNOLOGIES.
Who is the largest U.S. importer of Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms?
THERMAX INC is the largest U.S. importer of Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms (HS 391400), with 1,363 bill-of-lading shipment records.
Who are the top suppliers of Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms?
Leading suppliers shipping Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms (HS 391400) to the U.S. include THERMAX LIMITED, KINGDOM CHEMICALS CO LTD, PUROLITE CHINA CO LTD, PURE RESIN CO LTD, and ION EXCHANGE INDIA LTD.
How many U.S. shipments of Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms are there?
ImportDoor has 9,850 U.S. import shipment records under HS code 391400, spanning Jan 2020 to Aug 2026.
Where is Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms imported from?
Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms is imported into the U.S. primarily from CHINA, INDIA, and BELGIUM.
Find Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms importers & suppliers
Get the complete list of U.S. importers and global suppliers for HS 391400, with contact details and container-level shipment records on ImportDoor.
Start for free