Q1 Operating Loss of 864M Won and Net Loss of 736M Won, Switching to Deficit YoY


  • Q1 2026 revenue fell 58% to 2.79B won from 6.66B won in Q1 2025
  • Operating income swung to a loss of 864M won from a profit of 94M won
  • Net loss of 736M won recorded, compared to net income of 213M won a year ago
  • Quarterly report amended due to omission of period figures
  • Debt ratio improved to 20.8% from 68.3% at year-end, but accumulated deficit stood at 14.2B won

KOSDAQ Filing Information


  • [Correction of Description] Quarterly Report (2026.03)
  • Company: SD System (121890)
  • Submission: SD System Co., Ltd

  • Shares: 13,291,446
  • Price: 2,035 KRW
  • Market Cap: 27 B KRW