Isobutene-isoprene (butyl) rubber (IIR), other (HS 400239)
Isobutene-isoprene (butyl) rubber (IIR), other (HS 400239) has 2,027 U.S. import bill-of-lading shipment records between Jan 2020 and Aug 2026. The largest U.S. importer of Isobutene-isoprene (butyl) rubber (IIR), other is GILLYBOO CORP, with 388 shipments, followed by ARLANXEO USA LLC and GOLDSMITH & EGGLETON LLC. The leading supplier is ZHEJIANG HULONG INDUSTRIAL&TRADE CO, with 386 shipments, followed by ARLANXEO SINGAPORE PTE LTD and ARLANXEO CANADA INC. Goods originate mainly from CHINA and INDIA, arriving primarily at LOS ANGELES, CA. 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 August 2026Cite as: ImportDoor, U.S. Customs bill of lading data (data through August 2026), https://www.importdoor.com/products/400239-isobutene-isoprene-butyl-rubber-iir-other
See all 2,027 shipments of HS 400239 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 Isobutene-isoprene (butyl) rubber (IIR), other (HS 400239), by shipment volume. Hover a ribbon for details; click a name to open its profile.
The largest relationship is ZHEJIANG HULONG INDUSTRIAL&TRADE CO → GILLYBOO CORP with 379 shipments, followed by ARLANXEO SINGAPORE PTE LTD → ARLANXEO USA LLC (95) and EXXONMOBIL CHEMICAL LIMITED → EXXONMOBIL PRODUCT SOLUTIONS CO (59).
Top U.S. importers
| Importer | Shipments |
|---|---|
| GILLYBOO CORP | 388 |
| ARLANXEO USA LLC | 100 |
| GOLDSMITH & EGGLETON LLC | 67 |
| LIVING SPACES FURNITURE LLC | 67 |
| GOLDSMITH AND EGGLETON L L C | 65 |
| EXXONMOBIL PRODUCT SOLUTIONS CO | 63 |
| VUORI INC | 55 |
| EXXONMOBIL PRODUCT SOLUCTIONS CO | 52 |
| NEW FRONTIER FOODS INC | 41 |
| BOSCH SECURITY SYSTEMS INC | 36 |
Top suppliers
| Supplier | Shipments |
|---|---|
| ZHEJIANG HULONG INDUSTRIAL&TRADE CO | 386 |
| ARLANXEO SINGAPORE PTE LTD | 142 |
| ARLANXEO CANADA INC | 75 |
| EXXONMOBIL CHEMICAL LIMITED | 59 |
| NINGBO GOODBABY CHILD PRODUCTS CO LTD | 55 |
| RELIANCE SIBUR ELASTOMERS PRIVATE LIMITED | 55 |
| E TOP VIETNAM CO LTD | 51 |
| RELIANCE SIBUR ELASTOMERS PRIVATE L THANE BELAPUR | 51 |
| EXXONMOBIL CHEMICAL LTD | 47 |
| EXXONMOBIL CHEMICAL SERVICES AMERICAS INC | 45 |
Origin countries
| Country | Shipments |
|---|---|
| CHINA | 923 |
| INDIA | 176 |
| CANADA | 169 |
| VIET NAM | 144 |
| BELGIUM | 128 |
| UNITED KINGDOM | 112 |
| REPUBLIC OF KOREA | 65 |
| TURKEY | 53 |
| THAILAND | 39 |
| PHILIPPINES | 30 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| LOS ANGELES, CA | 654 |
| LONG BEACH, CA | 282 |
| TACOMA, WA | 201 |
| NEW YORK/NEWARK AREA, NEWARK, NJ | 178 |
| HOUSTON, TX | 163 |
| NORFOLK, VA | 150 |
| NEW ORLEANS, LA | 125 |
| SEATTLE, WA | 73 |
| NEW YORK, NY | 53 |
| MIAMI, FL | 40 |
Harmonized System classification
HS code 400239 — Isobutene-isoprene (butyl) rubber (IIR), 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 4002
Other six-digit codes in HS 4002: Synthetic rubber and factice derived from oils, in primary forms or in plates, sheets or strip, with their U.S. import volume.
Frequently asked questions about importing Isobutene-isoprene (butyl) rubber (IIR), other
Who imports Isobutene-isoprene (butyl) rubber (IIR), other (HS 400239)?
Based on U.S. Customs bill-of-lading records, the top U.S. importers of Isobutene-isoprene (butyl) rubber (IIR), other include GILLYBOO CORP, ARLANXEO USA LLC, GOLDSMITH & EGGLETON LLC, LIVING SPACES FURNITURE LLC, and GOLDSMITH AND EGGLETON L L C.
Who is the largest U.S. importer of Isobutene-isoprene (butyl) rubber (IIR), other?
GILLYBOO CORP is the largest U.S. importer of Isobutene-isoprene (butyl) rubber (IIR), other (HS 400239), with 388 bill-of-lading shipment records.
Who are the top suppliers of Isobutene-isoprene (butyl) rubber (IIR), other?
Leading suppliers shipping Isobutene-isoprene (butyl) rubber (IIR), other (HS 400239) to the U.S. include ZHEJIANG HULONG INDUSTRIAL&TRADE CO, ARLANXEO SINGAPORE PTE LTD, ARLANXEO CANADA INC, EXXONMOBIL CHEMICAL LIMITED, and NINGBO GOODBABY CHILD PRODUCTS CO LTD.
How many U.S. shipments of Isobutene-isoprene (butyl) rubber (IIR), other are there?
ImportDoor has 2,027 U.S. import shipment records under HS code 400239, spanning Jan 2020 to Aug 2026.
Where is Isobutene-isoprene (butyl) rubber (IIR), other imported from?
Isobutene-isoprene (butyl) rubber (IIR), other is imported into the U.S. primarily from CHINA, INDIA, and CANADA.
Find Isobutene-isoprene (butyl) rubber (IIR), other importers & suppliers
Get the complete list of U.S. importers and global suppliers for HS 400239, with contact details and container-level shipment records on ImportDoor.
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