Korea on Friday called on Japan to fully acknowledge the history of wartime forced labor at the Sado mine complex as it held a separate memorial ceremony for Korean victims of forced labor for the third consecutive year. Korean Ambassador to Japan Lee Hyuk made the call during the ceremony held at a hotel on Sado Island in Niigata Prefecture, with nine family members of the victims attending. "Many Korean workers had been mobilized against their will and forced to work at the mine through government-arranged labor placement and conscription under the involvement of the Japanese colonial government-general," Lee said in his memorial address. "Remembering the pain of the past and sharing our condolences here today will deepen our sense of empathy and healing, and provide an opportunity for everyone to fully understand the entire history of the Sado mine as a World Heritage site," he added. More than 1,500 Koreans were mobilized to work at the Sado mine during Japan's 1910-45 colonial rule of Korea. Many were assigned to dangerous underground tasks, and some lost their lives in underground