Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms, other (HS 391390)
Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms, other (HS 391390) has 3,512 U.S. import bill-of-lading shipment records between Dec 2019 and Aug 2026. The largest U.S. importer of Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms, other is JUNGBUNZLAUER INC, with 1,054 shipments, followed by NOVAMONT NORTH AMERICA and OVERFLO WAREHOUSE LLC. The leading supplier is JUNGBUNZLAUER AUSTRIA AG, with 2,319 shipments, followed by NOVAMONT SPA and JIANLONG BIOTECHNOLOGY CO LTD. Goods originate mainly from GERMANY and ITALY, arriving primarily at NEW YORK/NEWARK AREA, NEWARK, NJ. 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/391390-natural-polymers-for-example-alginic-acid-and-modified-natural-polymers-for-example-hardened-proteins-chemical
See all 3,512 shipments of HS 391390 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 Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms, other (HS 391390), by shipment volume. Hover a ribbon for details; click a name to open its profile.
The largest relationship is JUNGBUNZLAUER AUSTRIA AG → JUNGBUNZLAUER INC with 1,048 shipments, followed by NOVAMONT SPA → NOVAMONT NORTH AMERICA (346) and JUNGBUNZLAUER AUSTRIA AG → OVERFLO WAREHOUSE LLC (293).
Top U.S. importers
| Importer | Shipments |
|---|---|
| JUNGBUNZLAUER INC | 1,054 |
| NOVAMONT NORTH AMERICA | 347 |
| OVERFLO WAREHOUSE LLC | 293 |
| MIDWEST WAREHOUSE AND DISTRIBUTION | 164 |
| M&W DISTRIBUTION SERVICES INC | 129 |
| CAL WEST EXPRESS | 110 |
| HALL S WAREHOUSE CORP | 100 |
| BEIERSDORF MANUFACTURING MEXICO S A DE C V | 95 |
| JIANLONG BIOTECHNOLOGY CORP | 72 |
| LEACH LOGISTICS | 72 |
Top suppliers
| Supplier | Shipments |
|---|---|
| JUNGBUNZLAUER AUSTRIA AG | 2,319 |
| NOVAMONT SPA | 378 |
| JIANLONG BIOTECHNOLOGY CO LTD | 70 |
| DANISCO FRANCE SAS | 56 |
| RAHN AG | 47 |
| Q MED AB | 31 |
| DANISCO USA INC | 25 |
| NAGASE & CO LTD | 20 |
| COSUN BIOBASED PRODUCTS B V | 18 |
| RHODIA OPERATIONS | 18 |
Origin countries
| Country | Shipments |
|---|---|
| GERMANY | 2,154 |
| ITALY | 399 |
| CHINA | 388 |
| FRANCE | 124 |
| BELGIUM | 112 |
| INDIA | 59 |
| NETHERLANDS | 54 |
| JAPAN | 36 |
| SWEDEN | 32 |
| SPAIN | 27 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| NEW YORK/NEWARK AREA, NEWARK, NJ | 1,053 |
| BALTIMORE, MD | 500 |
| LOS ANGELES, CA | 376 |
| SAVANNAH, GA | 281 |
| OAKLAND, CA | 274 |
| HOUSTON, TX | 239 |
| NEW YORK, NY | 229 |
| NORFOLK, VA | 177 |
| CHARLESTON, SC | 152 |
| LONG BEACH, CA | 101 |
Harmonized System classification
HS code 391390 — Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms, 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.
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 3913
Other six-digit codes in HS 3913: Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms, with their U.S. import volume.
| Product (HS code) | Shipments |
|---|---|
| Alginic acid, its salts and esters (391310) | 451 |
Frequently asked questions about importing Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms, other
Who imports Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms, other (HS 391390)?
Based on U.S. Customs bill-of-lading records, the top U.S. importers of Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms, other include JUNGBUNZLAUER INC, NOVAMONT NORTH AMERICA, OVERFLO WAREHOUSE LLC, MIDWEST WAREHOUSE AND DISTRIBUTION, and M&W DISTRIBUTION SERVICES INC.
Who is the largest U.S. importer of Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms, other?
JUNGBUNZLAUER INC is the largest U.S. importer of Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms, other (HS 391390), with 1,054 bill-of-lading shipment records.
Who are the top suppliers of Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms, other?
Leading suppliers shipping Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms, other (HS 391390) to the U.S. include JUNGBUNZLAUER AUSTRIA AG, NOVAMONT SPA, JIANLONG BIOTECHNOLOGY CO LTD, DANISCO FRANCE SAS, and RAHN AG.
How many U.S. shipments of Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms, other are there?
ImportDoor has 3,512 U.S. import shipment records under HS code 391390, spanning Dec 2019 to Aug 2026.
Where is Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms, other imported from?
Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms, other is imported into the U.S. primarily from GERMANY, ITALY, and CHINA.
Find Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms, other importers & suppliers
Get the complete list of U.S. importers and global suppliers for HS 391390, with contact details and container-level shipment records on ImportDoor.
Start for free