EGM Notice: New Inside Director Appointment (Seo Chang-min) — DUKSAN Tehera

Summary

The company convened an Extraordinary General Meeting (EGM) for June 30, 2026 at 09:00 at the headquarters in Cheonan. The sole agenda item is the appointment of Seo Chang-min as a new inside director for a three-year term. The nominee is a Korean CPA, a Korea University political science graduate, and previously served as managing director at Duksan Electera and at the Korea Development Bank. The record date for voting rights is June 1, 2026, and the board resolved the meeting on May 15, 2026. Agenda items may be added or amended via corrective disclosure before the formal notice.

Filed	P₀	P₊₅	+5d
Jun 15, 2026	₩16,210	₩14,350	-11.47%
Mar 16, 2026	₩16,130	₩15,180	-5.89%

Filed

P₀

P₊₅

+5d

Jun 15, 2026

₩16,210

₩14,350

-11.47%

Mar 16, 2026

₩16,130

₩15,180

-5.89%

Full Translation

Duksan Tehera / Resolution to Convene a General Meeting of Shareholders / (2026.05.15) Resolution to Convene a General Meeting of Shareholders (Extraordinary General Meeting) Resolution to Convene a General Meeting of Shareholders 1. Date and Time - Date: 2026-06-30 - Time: 09:00 2. Location: Headquarters conference room, 39 Pungsesandan 2-ro, Dongnam-gu, Cheonan-si, Chungcheongnam-do 3. Record Date for Voting Rights: 2026-06-01 4. Date of Board Resolution: 2026-05-15 - Outside director attendance: 1 attended, 0 absent - Auditor (audit committee member who is not an outside director) attendance: Attended - Type of General Meeting: Extraordinary General Meeting 5. Other matters for investment reference: The agenda items of the Extraordinary General Meeting may be added or amended by board resolution prior to the meeting notice. Any changes will be announced through a corrective disclosure. Related disclosures: - [Detailed Agenda of the General Meeting] No. 1 — Agenda Item No. 1: Appointment of Director - Item 1-1: Appointment of Seo Chang-min as Inside Director Details of Director Appointment: - Name: Seo Chang-min - Date of Birth: March 1977 - Term: 3 years - New/Reappointment: New appointment - Key career (including current position): - Graduated from Korea University, Department of Political Science and Diplomacy - Korean Certified Public Accountant (CPA) - Former: Korea Development Bank - Former: Managing Director, Duksan Electera Co., Ltd.