Sejoong Q1 2026 revenue surges but net profit declines and debt ratio rises


  • Q1 2026 revenue 24.06B won (+66% YoY), operating profit 339M won (turned positive), net profit 457M won (down 28% from 633M)
  • PLM segment revenue surged to 17.89B won (74% of total) from 9.51B won, driven by Siemens S/W license contract (22.88B, 66.6% complete) and maintenance contract (33B, 33.3% complete)
  • Total assets 138.27B won, equity 99.72B won, debt ratio 37.26% (vs 10.63% at FY2025 end) due to trade payables surging from 944M to 21.83B won
  • Penalty of 12M won imposed by KRX for failure to disclose material change in revenue/profit
  • No shareholder return (dividend or share buyback) disclosed

KOSDAQ Filing Information


  • Filing: Quarterly Report (2026.03)
  • Company: Sejoong (039310)
  • Submission: Sejoong Co., Ltd.
  • Receipt: 05-14-2026