[Disclosure] Jusung Engineering (036930) – Change of Chief Executive Officer (CEO) / 2025-04-28

Fact Source: Financial Supervisory Service DART

💡 3-Second Summary

Jusung Engineering has expanded its executive leadership from a single CEO to a three-member co-CEO structure (Chul-joo Hwang, Woo-kyung Lee, and Eun-seok Hwang) following the new appointments of Woo-kyung Lee and Eun-seok Hwang as CEOs.

📊 [Key Disclosure Contents & Summary Metrics]

• Details of Change:
  • Previous CEO: Chul-joo Hwang
  • New CEOs: Chul-joo Hwang, Woo-kyung Lee, Eun-seok Hwang (Co-CEOs)
• Reason for Change: New appointments of Woo-kyung Lee and Eun-seok Hwang as CEOs
• Date of Change & Board Resolution: April 28, 2025 (5 Outside Directors Present, Auditor Present)
• 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: 11,926,211 shares (25.23%)
    • Key Work Experience: Chairman & CEO of Jusung Engineering (Apr 1993 – Present / Board Chair & Head of R&D), Chairman of Korea Invention Promotion Association
  • Woo-kyung Lee:
    • Date of Birth: June 16, 1964
    • Relationship with Largest Shareholder: Specially Related Person to Largest Shareholder
    • Shares Held & Ownership Ratio: 1,300 shares (0.00%)
    • Key Work Experience: Vice Chairman of Jusung Engineering (Dec 2024 – Present / Head of Sales & Operations), CEO of ASML Korea (Jan 2019 – Jun 2024)
  • Eun-seok Hwang:
    • Date of Birth: November 06, 1986
    • Relationship with Largest Shareholder: Relative of Largest Shareholder
    • Shares Held & Ownership Ratio: 1,049,010 shares (2.22%)
    • 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 expansion of executive leadership with the new appointments of Chief Executive Officers. Verifying whether the legal registration procedures following the change of CEOs are completed as required is recommended. Detailed information on executive updates can be checked in 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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