2026 Q1 Results: Revenue Plunges on Restructuring, Operating Profit Falls but Net Profit Surges on Non-Operating Gains; High Debt and Convertible Bond Dispute Pose Risks


  • Consolidated revenue: 10.76bn KRW (down 45% vs prior quarter due to Vietnamese subsidiary sale)
  • Operating profit: 0.51bn KRW (down from 0.77bn; edutech segment turned to loss)
  • Net profit attributable to parent: 0.59bn KRW (surge from 0.02bn on derivative gains, FX gains)
  • Precision chemicals: operating profit 0.96bn (up from 0.70bn, strong)
  • Edutech: operating loss of 0.04bn (vs profit of 0.79bn)
  • Debt ratio: 140.5% (year-end 135.9%), total borrowings 23.4bn KRW
  • Dispute over early redemption of convertible bonds (2.85bn KRW) under provisional attachment, recognized as liability
  • No dividends or share buyback
  • Credit rating: B- (2021, NICE D&B)
  • Sale of SD GLOBAL VIETNAM completed; business restructuring ongoing
  • Fire incident insurance claim pending (amount uncertain)

KOSDAQ Filing Information


  • Filing: Quarterly Report (2026.03)
  • Company: RYUK-IL C&S (191410)
  • Submission: RYUK-IL C&S., Ltd.
  • Receipt: 05-15-2026