Reaction initiators, reaction accelerators and catalytic preparations, other (HS 381590)
Reaction initiators, reaction accelerators and catalytic preparations, other (HS 381590) has 4,222 U.S. import bill-of-lading shipment records between Aug 2019 and Aug 2026. The largest U.S. importer of Reaction initiators, reaction accelerators and catalytic preparations, other is KEMAI USA CHEMICAL CO LTD, with 656 shipments, followed by MITSUBISHI POWER AMERICAS INC and HUATAI CHEMICAL USA CORP. The leading supplier is KEMAI CHEMICAL CO LTD, with 855 shipments, followed by ALCHEMY TRADE SHANGHAI LIMITED and BAJER GLOBAL CHEMISTRY CO LTD. Goods originate mainly from CHINA and GERMANY, arriving primarily at LONG BEACH, CA. 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/381590-reaction-initiators-reaction-accelerators-and-catalytic-preparations-other
See all 4,222 shipments of HS 381590 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 Reaction initiators, reaction accelerators and catalytic preparations, other (HS 381590), by shipment volume. Hover a ribbon for details; click a name to open its profile.
The largest relationship is KEMAI CHEMICAL CO LTD → KEMAI USA CHEMICAL CO LTD with 656 shipments, followed by ALCHEMY TRADE SHANGHAI LIMITED → HB CHEMICAL CORP (133) and SHANDONG DEREK NEW MATERIALS COMPAN BLUE ECONOMIC ZONE → HUATAI CHEMICAL USA CORP (115).
Top U.S. importers
| Importer | Shipments |
|---|---|
| KEMAI USA CHEMICAL CO LTD | 656 |
| MITSUBISHI POWER AMERICAS INC | 278 |
| HUATAI CHEMICAL USA CORP | 173 |
| HB CHEMICAL CORP | 148 |
| PRECISION MEASUREMENT INTERNATIONAL | 91 |
| DONALDSON COMPANY INC | 89 |
| CONTINENTAL TIRE THE AMERICAS LLC | 88 |
| EVONIK CORP | 85 |
| ALBEMARLE CORP | 84 |
| SIMKO NORTH AMERICA LLC | 84 |
Top suppliers
| Supplier | Shipments |
|---|---|
| KEMAI CHEMICAL CO LTD | 855 |
| ALCHEMY TRADE SHANGHAI LIMITED | 211 |
| BAJER GLOBAL CHEMISTRY CO LTD | 123 |
| SHANDONG DEREK NEW MATERIALS COMPAN BLUE ECONOMIC ZONE | 116 |
| QINGDAO AUXILIARY CHEMICAL CO LTD | 105 |
| EVONIK OPERATIONS GMBH | 101 |
| MITSUBISHI POWER HANGZHOU | 86 |
| JOHNSON MATTHEY CATALYSTS GERMANY G | 84 |
| EVONIK SEA PTE LTD | 78 |
| ELITE SAUDI ARABIA BRANCH CO LTD | 70 |
Origin countries
| Country | Shipments |
|---|---|
| CHINA | 1,997 |
| GERMANY | 500 |
| BELGIUM | 288 |
| NETHERLANDS | 260 |
| REPUBLIC OF KOREA | 175 |
| NETHERLANDS ANTILLES | 111 |
| ITALY | 107 |
| INDIA | 94 |
| JAPAN | 84 |
| SINGAPORE | 83 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| LONG BEACH, CA | 893 |
| HOUSTON, TX | 789 |
| NEW YORK/NEWARK AREA, NEWARK, NJ | 653 |
| SAVANNAH, GA | 506 |
| LOS ANGELES, CA | 320 |
| NORFOLK, VA | 236 |
| CHARLESTON, SC | 206 |
| SEATTLE, WA | 124 |
| TACOMA, WA | 97 |
| MOBILE, AL | 65 |
Harmonized System classification
HS code 381590 — Reaction initiators, reaction accelerators and catalytic preparations, 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.
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More products under HS 3815
Other six-digit codes in HS 3815: Reaction initiators, reaction accelerators and catalytic preparations, with their U.S. import volume.
Frequently asked questions about importing Reaction initiators, reaction accelerators and catalytic preparations, other
Who imports Reaction initiators, reaction accelerators and catalytic preparations, other (HS 381590)?
Based on U.S. Customs bill-of-lading records, the top U.S. importers of Reaction initiators, reaction accelerators and catalytic preparations, other include KEMAI USA CHEMICAL CO LTD, MITSUBISHI POWER AMERICAS INC, HUATAI CHEMICAL USA CORP, HB CHEMICAL CORP, and PRECISION MEASUREMENT INTERNATIONAL.
Who is the largest U.S. importer of Reaction initiators, reaction accelerators and catalytic preparations, other?
KEMAI USA CHEMICAL CO LTD is the largest U.S. importer of Reaction initiators, reaction accelerators and catalytic preparations, other (HS 381590), with 656 bill-of-lading shipment records.
Who are the top suppliers of Reaction initiators, reaction accelerators and catalytic preparations, other?
Leading suppliers shipping Reaction initiators, reaction accelerators and catalytic preparations, other (HS 381590) to the U.S. include KEMAI CHEMICAL CO LTD, ALCHEMY TRADE SHANGHAI LIMITED, BAJER GLOBAL CHEMISTRY CO LTD, SHANDONG DEREK NEW MATERIALS COMPAN BLUE ECONOMIC ZONE, and QINGDAO AUXILIARY CHEMICAL CO LTD.
How many U.S. shipments of Reaction initiators, reaction accelerators and catalytic preparations, other are there?
ImportDoor has 4,222 U.S. import shipment records under HS code 381590, spanning Aug 2019 to Aug 2026.
Where is Reaction initiators, reaction accelerators and catalytic preparations, other imported from?
Reaction initiators, reaction accelerators and catalytic preparations, other is imported into the U.S. primarily from CHINA, GERMANY, and BELGIUM.
Find Reaction initiators, reaction accelerators and catalytic preparations, other importers & suppliers
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