Sung Han Bin is a member and leader of the group ZeroBaseOne. He speaks English and Korean. A former Cube Entertainment trainee, he was a trainee with Studio GL1DE for a year and eight months before joining the survival show "Boys Planet." He studied in the Department of K-pop Performance at Dong-ah Institute of Media and Arts (DIMA KPOP) alongside former UNB member Kim Kijoong and Produce X 101 contestant Choi Suhwan and formerly worked as a backup dancer.
Han Bin is very close with fellow ZeroBaseOne member Seok Matthew, the two having trained together prior to competing in the survival show that produced their group. He had 1,888,414 votes during the show's finale, placing second and debuting in ZeroBaseOne (ZB1).