Following the unit's return from Hankou to Kanoya in September 1941, they became the second IJNAS unit (after Takao Air Group) to be equipped with the new Type 1 Mitsubishi G4M medium bombers. In November, they moved to Taiwan, however soon afterwards the unit's main body was transferred to Saigon in French Indochina, leaving a detachment at Taichung. The detachment that stayed on Taiwan participated in the attack on the Philippines.