Y. Taesung U18: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-01-16 | Seung-jae Yoo | Y. Taesung U18 | Jeju SK | Free |
| 2026-01-16 | Dong-hwi Kang | Y. Taesung U18 | Jeju SK | Free |
| 2024-01-01 | Seung-jae Yoo | KHT Ild. M U15 | Y. Taesung U18 | — |
| 2023-01-01 | Se-jin Park | Y. Taesung U18 | Daegu FC | Free |
| 2023-01-01 | Dong-hwi Kang | Suwon WC U15 | Y. Taesung U18 | — |
| 2021-01-07 | Sang-hyeok Park | Y. Taesung U18 | Gangwon FC | Free |
| 2021-01-01 | Se-jin Park | Busan FC U18 | Y. Taesung U18 | — |
| 2018-01-01 | Sang-hyeok Park | Gimhae MS | Taesung HS | — |
| 2015-01-01 | Ye-sung Kim | Taesung HS | Gwangju Uni | — |