Hong Seung-han (홍승한), is a Korean SM Entertainment trainee born on October 2, 2003, in Ilsan, South Korea.
On July 2, 2022, Seunghan was revealed as a part of the trainee team SMROOKIES.
On May 24, 2023, SM Entertainment announced that Seunghan will be debuting in their upcoming boy group.
On August 1, 2023 Seunghan was announced as a member of RIIZE.
On October 11, 2024 Seunghan was back in RIIZE after a 10-month hiatus.
On October 13, 2024 Seunghan was removed from RIIZE.
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