O&K CO LTD
O&K CO LTD is a supplier based in JAPAN with 1,331 U.S. import bill-of-lading shipment records between Jan 2020 and Jun 2026. It is the leading supplier of Concrete reinforcing bars and rods (HS 721310) to the U.S. by shipment count. Its top U.S. customers include O&K AMERICAN CORP, ROCKNEL FASTENER INC, and MUSASHI AUTO PARTS CANADA INC, primarily ships HS code 721310. Shipments arrive primarily at LOS ANGELES, CA. Shipment 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 June 2026
Shipments over time (last 24 months)
Trade flow: products → U.S. importers
What O&K CO LTD ships and to whom — the strongest product-customer relationships in its shipment records. Hover a ribbon for details; click a name to open its profile.
The largest relationship is Concrete reinforcing bars and rods → O&K AMERICAN CORP with 678 shipments, followed by Other bars and rods, not further worked than hot-rolled, hot-dr… → O&K AMERICAN CORP (142) and Not plated or coated, whether or not polished → O&K AMERICAN CORP (139).
Top U.S. customers
| Importer | Shipments |
|---|---|
| O&K AMERICAN CORP | 1,157 |
| ROCKNEL FASTENER INC | 138 |
| MUSASHI AUTO PARTS CANADA INC | 29 |
| OKAYA USA | 6 |
| SEKIDO TECHNOLOGY CORP | 1 |
Top products (HS codes)
Unlock O&K CO LTD’s full product & HS-code breakdownOrigin countries
| Country | Shipments |
|---|---|
| JAPAN | 1,331 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| LOS ANGELES, CA | 1,170 |
| TACOMA, WA | 74 |
| NORFOLK, VA | 60 |
| CHARLESTON, SC | 13 |
| LONG BEACH, CA | 8 |
| SAVANNAH, GA | 3 |
| OAKLAND, CA | 2 |
| SEATTLE, WA | 1 |
Frequently asked questions about O&K CO LTD
Who are O&K CO LTD's top U.S. customers?
Based on U.S. Customs bill-of-lading records, O&K CO LTD's top U.S. importers include O&K AMERICAN CORP, ROCKNEL FASTENER INC, MUSASHI AUTO PARTS CANADA INC, OKAYA USA, and SEKIDO TECHNOLOGY CORP.
What does O&K CO LTD export?
O&K CO LTD's most frequent shipments fall under HS codes 721310, 722830, and 721710.
Is O&K CO LTD a major supplier of Concrete reinforcing bars and rods?
Yes — based on U.S. Customs bill-of-lading shipment counts, O&K CO LTD is the leading supplier of Concrete reinforcing bars and rods (HS 721310) to the U.S.
Where does O&K CO LTD ship from?
O&K CO LTD ships primarily from JAPAN.
How many shipments does O&K CO LTD have?
ImportDoor has 1,331 U.S. import shipment records for O&K CO LTD, spanning Jan 2020 to Jun 2026.
Which U.S. ports does O&K CO LTD ship to?
O&K CO LTD's shipments arrive primarily at LOS ANGELES, CA and TACOMA, WA.
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