한 Oyster Oyster (오이스터) is a South Korean Boy Group that debuted in 2018. They consist of 4 members: Jogon, Juwon, Ueigon and Wonwoo. Betweem 2019 and 2025 promoted as "9001" while under a different studio Read All General Information International Stage Name : Oyster Domestic Stage Name : Pronounce 오이스터 Previous Stage Name : 9001 Previous Hangul Stage Name : 9001 Aliases : Ninety O One; Band Oyster Debut Day : 2018-07-24 (Active) Members 201820192020202120222023202420252026 JogonJuwonUeigonWonwooJese Jogon (조곤) Full Name: Date of Birth: 1997-08-05 (29 years) Zodiac sign: Leo Country: South Korea Active period: 2018-present Role: Leader,Vocal,Instrumental Juwon (조원) Full Name: Oh Juwon Country: South Korea Active period: 2018-present Role: Instrumental Ueigon (의건) Full Name: An Ueigon Date of Birth: 1996-10-12 (29 years) Zodiac sign: Libra Country: South Korea Active period: 2018-present Role: Instrumental Wonwoo (원우) Full Name: Country: South Korea Active period: 2018-present Role: Instrumental Past Members Jese (제세) Full Name: Kim Junhyeop Date of Birth: 1997-02-10 Zodiac sign: Aquarius Country: South Korea Active period: 2018-2021 Role: Instrumental Metrics and Achievements Success(max 5 stars) : Time since last release : (2025-05-31) Time to Success : Not reached or Indie/Nugu PAKs : 0 Music Show Awards2006+ : 0 Annual Awards : 0 Streaming Weekly Score(Since 2010) : Never ranked in top 100 Billboard weekly Score(Since 2020) : Never ranked in top 200 Physical Sales (Circlechart) : 0+ Total Youtube Views : 584.971+ Brand Physical Sales : 0+ Brand Views : 585.021+ Images No images yet