| Kokai Maru |
Kokai Maru
| Operator | Mitsui Sempaku |
| Classification | |
| Gross tonnage | 3,871 tons |
| Speed | |
| Departure point | Rabaul |
| Departure date | Palau |
| Destination | |
| No. of POWs | 27 |
| Location of disaster | 170°64NM of Kavieng, New Ireland |
| Date of disaster | 21 February 1944 |
| POW casualties | 27 |
| POW survivors | Nil |
| Painting | Courtesy of Mr. Kihachiro Ueda |
Sunk by a torpedo attack.