Dong-Ah Geological Engineering Amends Contract Period Disclosure for Catholic Diocese of Busan Project, Negotiations Underway


  • Dong-Ah Geological Engineering Company LTD. corrected its single sale and supply contract disclosure filed on December 30, 2025, removing the contract end date and stating that negotiations for changes to the contract amount and period are ongoing.
  • The contract is for the construction of a religious facility in Geumjeong-gu, Busan for the Catholic Diocese of Busan, with a contract amount of approximately 25.1 billion KRW including VAT, representing 9.4% of recent sales.
  • The original contract was signed in March 2022 for 9.9 billion KRW and was amended in January 2024 to the current amount, which triggered the disclosure threshold. Further amendments are now under negotiation.
  • [AI Summary]This amendment reflects the ongoing administrative status of contract negotiations and does not involve new fundraising or capital changes, resulting in no immediate impact on shareholder value. However, the contract size may be adjusted depending on negotiation outcomes, and specific effects will be confirmed through future disclosures.

KOSPI Filing Information


  • [Correction of Description] Conclusion of Single Sale and Supply Contract
  • Company: Dong-Ah Geological Engineering (028100)
  • Submission: Dong-Ah Geological Engineering Company LTD.
  • Under KRX KOSPI Market Division

  • Shares: 13,389,502
  • Price: 15,950 KRW
  • Market Cap: 213.6 B KRW