[Disclosure] Jusung Engineering (036930) – Change of Chief Executive Officer (CEO) / 2025-09-19

Fact Source: Financial Supervisory Service DART

💡 3-Second Summary

Jusung Engineering has announced a leadership change from a three-member structure to a co-CEO system with Chul-joo Hwang and Eun-seok Hwang following the resignation of CEO Woo-kyung Lee.

📊 [Key Disclosure Contents & Summary Metrics]

• Details of Change:
  • Previous CEOs: Chul-joo Hwang, Woo-kyung Lee, Eun-seok Hwang
  • New CEOs: Chul-joo Hwang, Eun-seok Hwang (Co-CEOs)
• Reason for Change: Resignation of CEO Woo-kyung Lee due to personal reasons
• Date of Change: September 19, 2025 (Date of resignation letter submission)
• Summary of Executive Board (Co-CEOs):
  • Chul-joo Hwang:
    • Date of Birth: December 02, 1959
    • Relationship with Largest Shareholder: Largest Shareholder
    • Shares Held & Ownership Ratio: 12,022,902 shares (25.44%)
    • Key Work Experience: Chairman & CEO of Jusung Engineering (Apr 1993 – Present / Board Chair & Head of R&D), Chairman of Korea Invention Promotion Association
  • Eun-seok Hwang:
    • Date of Birth: November 06, 1986
    • Relationship with Largest Shareholder: Relative of Largest Shareholder
    • Shares Held & Ownership Ratio: 1,053,310 shares (2.23%)
    • Key Work Experience: President of Jusung Engineering (Jan 2024 – Present / Head of Business Management & Strategic Planning), Senior Researcher at Samsung Electronics (Mar 2018 – Dec 2023)

📝 Editor’s Comment (Key Follow-up Checkpoint)

📌 Verification of Executive Registration Procedures and Board Composition

This disclosure serves as a formal notice regarding the leadership change due to the resignation of a Chief Executive Officer. Verifying whether the legal registration procedures following the change of CEO are completed as required is recommended. Detailed information on executive updates can be checked in the upcoming periodic filings (Quarterly, Half-Year, or Annual Business Reports) under the ‘Executives and Employees’ section.

📢 Disclaimer & Source Notice

Source: This content is structured and rewritten based on official data submitted to the Financial Supervisory Service’s Data Analysis, Retrieval and Transfer System (DART).

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