Nummer: 25806
| Area : | Indic Ocean |
| Sea area : | Southeast Asia |
| Date of attack : | 05.01.1942 |
| Time of attack : | 05:00 |
| Nationality of U-boat : | Japanese |
| U-boat : | I-156 |
| Commander : | Ohashi |
| presumed target type : | Steam Freighter |
| presumed result : | sunk |
| Used weapon(s) : | Gunfire |
| Date of observation : | 04.01.1942 |
| Nationality of target : | British |
| Actual type of target : | Steam Freighter |
| Name of target : | Kwantung |
| Year of launch : | 1921 |
| Actual tonnage : | 2626 BRT |
| Actual result : | sunk |
| Position of target : | 09.12s 111.10e |