Kenei Maru was part of convoy SATA-05, being attacked by USN aircraft of Taskforce 38.
Other Japanese ships of SATA-05 sunk, were:
Ayayuki Maru - Tanker
CD-35 - C-class Escort
CD-43 - C-class Escort
CH-31 - Submarine Chaser
Eiho Maru - Tanker
Koshin Maru - Tanker
PB-103 - Patrol Minesweeper
Toyo Maru - Troopship
W-101 - Minesweeper
and several other ships.
Taskforce 38 was deployed under "Operation Gratitude"