The Red China ordered from Wärtsilä Turku shipyard six steamers. The ships based on RIGEL type and were delivered from Turku to China under Finnish flag and by Finnish crew 1955 - 1957. They were handed over to some Finnish shipping company that took care of managing and chartering during the voyage. Reason for Finnish registering maybe was to avoid attacks of Taiwan troops. The ships were: ROSA, RENATA, RITA, RUNA, ROSITA, RAGNI. Chinese names were HO PING (peace) and number. Later renamed ZHAN DOU (fight) and number
Lue laivojen historia SLHY:n lehti LAIVA 2/2020: Rami Wirrankoski, "Turkulaiset mustat sisarukset".