Requisitioned by the IJN on 28 September 1941 and was refitted as a seaplane tender. The ship subsequently saw service in the Pacific Campaign of World War II. Kiyokawa Maru was attacked by aircraft from Task Force 38 on 20 July 1945. Hit by bombs and heavily damaged she was beached off Shida beach north of Kaminoseki, Yamaguchi to avoid sinking.
On 22 November 1945 during heavy weather, Kiyokawa Maru sank. Raised in December 1948, later repaired and put in civilian passenger service. Scrapped 1969.