South Korean Ambassador to Japan Park Cheol-hee, right, bows to an altar as the relatives of Korean victims and South Korean officials during a memorial service at the site of former Fourth Souai Dormitory for the mine workers from the Korean Peninsula, in Sado, Niigata prefecture, Japan, Monday, Nov. 25, 2024. (AP Photo/Eugene Hoshiko)

South Korean Ambassador to Japan Park Cheol-hee, front left, looks at a memorial service at the site of former Fourth Souai Dormitory for the mine workers from the Korean Peninsula, in Sado, Niigata prefecture, Japan, Monday, Nov. 25, 2024. (AP Photo/Eugene Hoshiko)

South Korean Ambassador to Japan Park Cheol-hee, left, walks with the relatives of Korean victims and South Korean officials to hold a memorial service at the site of former Fourth Souai Dormitory for the mine workers from the Korean Peninsula, in Sado, Niigata prefecture, Japan, Monday, Nov. 25, 2024, after boycotting a memorial organized by Japanese officials. (AP Photo/Eugene Hoshiko)

South Korean Ambassador to Japan Park Cheol-hee, right, delivers a speech to the relatives of Korean victims and South Korean officials during a memorial service at the site of former Fourth Souai Dormitory for the mine workers from the Korean Peninsula, in Sado, Niigata prefecture, Japan, Monday, Nov. 25, 2024. (AP Photo/Eugene Hoshiko)

South Korean Ambassador to Japan Park Cheol-hee, center, delivers a speech as relatives of Korean victims and South Korean officials hold a memorial service in Sado, Niigata prefecture, Japan, Monday, Nov. 25, 2024. (AP Photo/Eugene Hoshiko)

A staff prepare offerings prior to a memorial service held by relatives of Korean victims and South Korean officials in Sado, Niigata prefecture, Japan, Monday, Nov. 25, 2024, after boycotting a memorial organized by Japanese officials. (AP Photo/Eugene Hoshiko)

South Korean Ambassador to Japan Park Cheol-hee, center, arrives to join the relatives of Korean victims and South Korean officials to hold a memorial service in Sado, Niigata prefecture, Japan, Monday, Nov. 25, 2024. (AP Photo/Eugene Hoshiko)

Relatives of Korean victims and South Korean officials offer flowers during a memorial service in Sado, Niigata prefecture, Japan, Monday, Nov. 25, 2024, after boycotting a memorial organized by Japanese officials. The black banner reads " A memorial service for Korean forced laborer victims at Sado Mine." (AP Photo/Eugene Hoshiko)