S.Bluewings U18: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2025-01-17 | Byung-heon Yoo | S.Bluewings U18 | Gangwon FC | Free |
| 2023-07-20 | Sung-hoon Kwak | S.Bluewings U18 | Suwon Bluewings | — |
| 2023-01-01 | Jung-hoon Kim | S.Bluewings U18 | Korea University | — |
| 2023-01-01 | In-jung Jo | S.Bluewings U18 | Shinpyeong HS | — |
| 2022-01-01 | Sung-hoon Kwak | Seil MS | S.Bluewings U18 | — |
| 2022-01-01 | Hyeon-ho Moon | S.Bluewings U18 | Suwon Bluewings | — |
| 2022-01-01 | Byung-heon Yoo | S.Bluewings U15 | S.Bluewings U18 | — |
| 2021-01-01 | In-jung Jo | S.Bluewings Yth | S.Bluewings U18 | — |
| 2020-07-24 | Sang-bin Jeong | S.Bluewings U18 | Suwon Bluewings | — |
| 2020-01-01 | Jung-hoon Kim | S.Bluewings U15 | S.Bluewings U18 | — |
| 2019-01-31 | Sang-jun Kim | S.Bluewings U18 | Suwon Bluewings | — |
| 2019-01-30 | Hyeon-gyu Oh | S.Bluewings U18 | Suwon Bluewings | — |
| 2019-01-01 | Tae-won Kang | S.Bluewings U18 | Soongsil Univ. | — |
| 2018-07-11 | Tae-hwan Kim | S.Bluewings U18 | Suwon Bluewings | — |
| 2018-01-09 | Jin-woo Jeon | S.Bluewings U18 | Suwon Bluewings | — |
| 2018-01-01 | Sang-bin Jeong | S.Bluewings U15 | S.Bluewings U18 | — |
| 2018-01-01 | Hyeon-ho Moon | S.Bluewings U15 | S.Bluewings U18 | — |
| 2017-01-01 | Sang-jun Kim | S.Bluewings U15 | S.Bluewings U18 | — |
| 2017-01-01 | Hyeon-gyu Oh | S.Bluewings U15 | S.Bluewings U18 | — |
| 2017-01-01 | Chan-gi An | S.Bluewings U18 | Incheon Uni. | — |