Sangmoon HS: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2022-01-01 | Jae-seok Hong | Sangmoon HS | Jeonju Uni | — |
| 2020-01-03 | Si-hoo Hong | Sangmoon HS | Seongnam FC | Free |
| 2019-01-01 | Jae-seok Hong | Yongma MS | Sangmoon HS | — |
| 2017-01-01 | Si-hoo Hong | Cheonan C. U15 | Sangmoon HS | — |