Japan building 8 submarine chasers according to the Australia Station Intelligence Summary dated 1 February 1956

An item reported that the 8 Japanese submarine chasers to be built under the Japanese 1953-1954 Budget were transferred to the 1954-1955 budget programme. In December 1955 were 7 laid down, the last one to follow in March 1956.

Source

Website Royal Australian Navy, Sea Power Centre.