Change in Largest Shareholder: Seo Seong-seok to Lee Byung-man, Same Stake... Restructuring Without Real Control Change


  • The largest shareholder changed from Seo Seong-seok and 7 others (63.01%) to Lee Byung-man and 9 others (63.01%), but total stake remains unchanged, indicating no change in control.
  • Reason for change: Seo Seong-seok sold shares off-market to related parties SSY and BJH, which are newly included as related parties of the new largest shareholder.
  • Previous largest shareholder Seo Seong-seok's stake decreased from 22.61% to 13.83%, while new largest shareholder Lee Byung-man's stake remains at 19.95%.
  • This filing is a correction of a simple misstatement; no substantive changes.
  • [AI Comprehensive Analysis]This change in largest shareholder is a transfer among related parties of the previous largest shareholder, with a neutral impact on shareholder value. Since only the nominal largest shareholder changed without real governance shift, investment risk is low.

KOSPI Filing Information


  • Filing: [Correction of Description] Change of Largest Shareholder
  • Company: COSMAX BTI (044820)
  • Submission: COSMAX BTI, INC.
  • Receipt: 05-28-2026
  • Under KRX KOSPI Market Division