ISTEntertainment Four APINK Members Leave IST Entertainment; Group Will Not Disband 2 years ago On April 28, 2023, Bomi, Chorong, Hayoung, and Namjoo opted to depart IST Entertainment after 12 years following the… Naeun Officially Leaves Apink 3 years ago Just ahead of Apink’s 11th anniversary, Naeun announced her official departure from the group. IST Entertainment confirmed the news…