Change of CEO


  • Han Seong-il resigned, Jeong Jae-joon appointed as new CEO (effective 2026-04-30)
  • New CEO: executive of the largest shareholder, holds 0 shares
  • Key experience: CEO of SORUX (KOSDAQ-listed), CEO of Arivio (unlisted)

KOSDAQ Filing Information


  • Filing: Change In Representative Director
  • Company: CHA Vaccine Research Institute (261780)
  • Submission: CHA Vaccine Research Institute
  • Receipt: 04-30-2026
  • Under KRX KOSDAQ Market Division