<sod>In December 2015, MBK Entertainment announced Cathy temporarily withdrawn from the group to join survival program [[Produce 101]], she auditioned and signed contracts with the show before DIA's official debut and was subsequently eliminated in Episode 11. She returned to DIA once the project was finished.<ref name=survivalprogram/><eod>
<sod>In December 2015, MBK Entertainment announced Cathy temporarily withdrawn from the group to join survival program ''[[Produce 101]]'', she auditioned and signed contracts with the show before DIA's official debut and was subsequently eliminated in Episode 11. She returned to DIA once the project was finished.<ref name=survivalprogram/><eod>