Containing by weight more than 50 percent of free carbon (HS 690310)
Containing by weight more than 50 percent of free carbon (HS 690310) has 1,419 U.S. import bill-of-lading shipment records between Jan 2020 and Aug 2026. The largest U.S. importer of Containing by weight more than 50 percent of free carbon is TYK AMERICA INC, with 327 shipments, followed by KROSAKI USA INC and PORTER WARNER INDUSTRIES LLC. The leading supplier is TYK CORP, with 327 shipments, followed by ITOCHU CERATECH CORP and KROSAKI HARIMA CORP. Goods originate mainly from JAPAN and CHINA, arriving primarily at LOS ANGELES, 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/690310-containing-by-weight-more-than-50-percent-of-free-carbon
See all 1,419 shipments of HS 690310 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 Containing by weight more than 50 percent of free carbon (HS 690310), by shipment volume. Hover a ribbon for details; click a name to open its profile.
The largest relationship is TYK CORP → TYK AMERICA INC with 327 shipments, followed by KROSAKI HARIMA CORP → KROSAKI USA INC (158) and ITOCHU CERATECH CORP → PORTER WARNER INDUSTRIES LLC (73).
Top U.S. importers
| Importer | Shipments |
|---|---|
| TYK AMERICA INC | 327 |
| KROSAKI USA INC | 158 |
| PORTER WARNER INDUSTRIES LLC | 73 |
| HALCO LIGHTING TECHNOLOGIES LLC | 44 |
| CHEMSPEC LTD | 43 |
| WEAVER MATERIEL SERVICE INC | 36 |
| MAGNITUDE 7 METALS LLC | 34 |
| CURRENT LIGHTING SOLUTIONS LLC | 27 |
| HURON CASTING INC | 25 |
| SGL CARBON LLC | 23 |
Top suppliers
| Supplier | Shipments |
|---|---|
| TYK CORP | 327 |
| ITOCHU CERATECH CORP | 171 |
| KROSAKI HARIMA CORP | 158 |
| HANGZHOU WELL TRANS SUPPLY CHAIN MA | 145 |
| HONG KONG SUPER LIGHTING ELECTRIC APPLIANCE CO LTD | 43 |
| SGL CARBON GMBH | 40 |
| JINGZHOU JIANGHAN FINE CHEMICAL CO | 37 |
| MORGANITE CRUCIBLE INDIA LIMITED | 30 |
| WEIHAI A&BEST COMPOSITES CO LTD | 29 |
| ZHEJIANG SUPER LIGHTING ELECTRIC APPLIANCE CO LTD | 27 |
Origin countries
| Country | Shipments |
|---|---|
| JAPAN | 639 |
| CHINA | 486 |
| INDIA | 61 |
| GERMANY | 44 |
| UNITED KINGDOM | 41 |
| BELGIUM | 38 |
| ITALY | 24 |
| BRAZIL | 10 |
| REPUBLIC OF KOREA | 10 |
| MEXICO | 10 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| LOS ANGELES, CA | 576 |
| TACOMA, WA | 217 |
| LONG BEACH, CA | 172 |
| NEW YORK/NEWARK AREA, NEWARK, NJ | 165 |
| SAVANNAH, GA | 119 |
| CHARLESTON, SC | 48 |
| CHESTER, PA | 29 |
| NORFOLK, VA | 26 |
| HOUSTON, TX | 17 |
| SEATTLE, WA | 13 |
Harmonized System classification
HS code 690310 — Containing by weight more than 50 percent of free carbon. 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 6903
Other six-digit codes in HS 6903: Other refractory ceramic goods (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths, rods and slide gates), other than those of siliceous fossil meals or of similar siliceous earths, with their U.S. import volume.
Frequently asked questions about importing Containing by weight more than 50 percent of free carbon
Who imports Containing by weight more than 50 percent of free carbon (HS 690310)?
Based on U.S. Customs bill-of-lading records, the top U.S. importers of Containing by weight more than 50 percent of free carbon include TYK AMERICA INC, KROSAKI USA INC, PORTER WARNER INDUSTRIES LLC, HALCO LIGHTING TECHNOLOGIES LLC, and CHEMSPEC LTD.
Who is the largest U.S. importer of Containing by weight more than 50 percent of free carbon?
TYK AMERICA INC is the largest U.S. importer of Containing by weight more than 50 percent of free carbon (HS 690310), with 327 bill-of-lading shipment records.
Who are the top suppliers of Containing by weight more than 50 percent of free carbon?
Leading suppliers shipping Containing by weight more than 50 percent of free carbon (HS 690310) to the U.S. include TYK CORP, ITOCHU CERATECH CORP, KROSAKI HARIMA CORP, HANGZHOU WELL TRANS SUPPLY CHAIN MA, and HONG KONG SUPER LIGHTING ELECTRIC APPLIANCE CO LTD.
How many U.S. shipments of Containing by weight more than 50 percent of free carbon are there?
ImportDoor has 1,419 U.S. import shipment records under HS code 690310, spanning Jan 2020 to Aug 2026.
Where is Containing by weight more than 50 percent of free carbon imported from?
Containing by weight more than 50 percent of free carbon is imported into the U.S. primarily from JAPAN, CHINA, and INDIA.
Find Containing by weight more than 50 percent of free carbon importers & suppliers
Get the complete list of U.S. importers and global suppliers for HS 690310, with contact details and container-level shipment records on ImportDoor.
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