Decision on Debt Guarantee for Subsidiary JK Cube (KRW 12 Billion)


  • Decision to provide a debt guarantee of KRW 12 billion for a loan of KRW 10 billion of subsidiary JK Cube, creditor: Goyang Dongbu Saemaeul Geumgo.
  • Guarantee amount equals 29.75% of equity (KRW 40.3 billion), guarantee period from 2026-05-07 to 2028-05-07 (2 years).
  • Debtor JK Cube is a newly established subsidiary in 2026, financial information omitted.
  • Board resolution date: 2026-05-07, all 4 outside directors present, auditor present.
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KOSDAQ Filing Information


  • Filing: Decision On Guarantee Of Debt For Others
  • Company: HanWool Materials Science (091440)
  • Submission: HanWool Materials Science, Inc.
  • Receipt: 05-07-2026
  • Under KRX KOSDAQ Market Division