Built to replace AMC 491 Erimo, in addition to the primary role as a mine-layer, she was also flagship to the Mine Sweeping Flottila and mine sweeper tender. She has been replaced by MST 463 Uraga. Shares the basic design with MST 462 Hayase.
| Standard Displacement | 2150t |
| Length | 99.00m |
| Beam | 15.00m |
| Draught | 4.20m |
| Machine Type | 4 Kawasaki-MAN V6V22/30ATL Diesel |
| Output | 6400PS |
| Number of shaft | 2 |
| Speed | 18kt |
| Crew | 180 |
| Original | Refit (1988) | |
| Guns | 1 Type 68/Mk 33 3in/50(II)
2 Mk10 20mm MG(I) |
1 Type 68/Mk 33 3in/50(II)
2 JM 61 20mm Gutling Gun(I) |
| AS Weapons | 2 Type 68/Mk32 TT(II)
1 Type 1 Mine Layer set |
as left |
| Electronic Equipment | 1 OPS-14 AS Radar
1 OPS-17 SS Radar 1 Type 72 GFCS SQS-11A Sonar ZQS-1B Sonar |
as left |
| Name | Laid Down | Launched | Completed | Deleted |
| MMC 951 Soya | 1970/07/09 | 1971/03/31 | 1971/09/30 | 1996/11/29 |