Change of largest shareholder

What happened

Change of Largest Shareholder

1. Details of the change

Largest shareholder before the change: Humax Holdings Co., Ltd. and 6 others Number of shares held: 1,549,100 Ownership ratio (%): 35.96

Largest shareholder after the change: Byun Dae-kyu and 7 others Number of shares held: 999,058 Ownership ratio (%): 15.17

2. Reason for the change Change of largest shareholder due to the absorption-type merger between Humax Co., Ltd. (surviving company) and Humax Holdings Co., Ltd. (extinguished company) - Whether due to the acquisition of forfeited shares: No - Whether the transferred shares are subject to a mandatory holding period: No

3. Purpose of equity acquisition: - - Method of financing the acquisition: Own funds (KRW): -; Borrowed funds (KRW): -; Source of borrowing: -; Borrowing period: - to -; Collateral details: - - Plan for appointment/dismissal of executives after acquisition: Not applicable (change due to merger)

4. Date of change: 2026-10-01 5. Date of confirmation of change: 2026-10-01

6. Other matters for reference in investment decisions (1) The Company absorbed Humax Holdings Co., Ltd., its former largest shareholder, effective October 1, 2026 (the merger effective date). (2) The above date of change and date of confirmation of change are the date of application for merger registration. (3) The number of shares held after the change above reflects the merger new shares allotted to shareholders of the extinguished company (Humax Holdings) based on the merger ratio (1 : 0.9646707). (4) The ownership ratio (%) was calculated based on the total issued shares of 6,584,982 after issuance of the merger new shares. (5) The above number of shares held and ownership ratio are as of the disclosure date, and may change somewhat due to the treatment of fractional shares, etc. in the allotment of merger new shares. If any change occurs, an amended disclosure will be filed.

Related disclosures: 2026-10-01 Report on results of securities issuance (merger, etc.) 2026-08-27 Prospectus 2026-08-11 Public notice of convocation of general shareholders' meeting 2026-08-11 Securities registration statement (merger)

[Details of the change]

Humax Holdings Co., Ltd.: Relationship - Largest shareholder before the change; Before the change - 1,535,273 shares, 35.64%; After the change - -, -; Remarks - Extinguished company Byun Dae-kyu: Relationship - Largest shareholder after the change; Before the change - -, -; After the change - 865,706 shares, 13.15%; Remarks - Humax Holdings' shares converted into merger new shares Park Bo-kyung: Relationship - Related party of the largest shareholder after the change; Before the change - -, -; After the change - 21,322 shares, 0.32%; Remarks - Related party of the largest shareholder after the change; Humax Holdings' shares converted into merger new shares J2B Co., Ltd.: Relationship - Related party of the largest shareholder before the change; Before the change - 2,207 shares, 0.05%; After the change - 100,410 shares, 1.52%; Remarks - Related party of the largest shareholder before and after the change; includes Humax Holdings' shares converted into merger new shares Jung Sung-min: Relationship - Related party of the largest shareholder before the change; Before the change - 5,981 shares, 0.14%; After the change - 5,981 shares, 0.09%; Remarks - Related party of the largest shareholder before and after the change Byun Ji-young: Relationship - Related party of the largest shareholder before the change; Before the change - 2,238 shares, 0.05%; After the change - 2,238 shares, 0.03%; Remarks - Related party of the largest shareholder before and after the change Byun Jung-seok: Relationship - Related party of the largest shareholder before the change; Before the change - 1,901 shares, 0.04%; After the change - 1,901 shares, 0.03%; Remarks - Related party of the largest shareholder before and after the change Jung Chang-su: Relationship - Related party of the largest shareholder before the change; Before the change - 1,000 shares, 0.02%; After the change - 1,000 shares, 0.02%; Remarks - Related party of the largest shareholder before and after the change Shim Jae-hyun: Relationship - Related party of the largest shareholder before the change; Before the change - 500 shares, 0.01%; After the change - 500 shares, 0.01%; Remarks - Related party of the largest shareholder before and after the change

[Matters relating to the largest shareholder after the change (individual)]

1. Basic information of the individual Name: Byun Dae-kyu Nationality: Republic of Korea

- Executive career history of the individual

Byun Dae-kyu / Humax Holdings Co., Ltd. (Listed, KOSDAQ): Position - Representative Director; Joining date - January 26, 1989; Leaving date - September 30, 2026; Remarks - Extinguished company Byun Dae-kyu / Humax Co., Ltd. (Listed, KOSDAQ): Position - In-house Director; Joining date - October 1, 2009; Leaving date - -; Remarks - - Byun Dae-kyu / NAVER Corporation (Listed, KOSPI): Position - Non-executive Director; Joining date - March 17, 2017; Leaving date - March 23, 2026; Remarks - -

- History of the individual as largest shareholder of a listed company

Byun Dae-kyu / Humax Holdings Co., Ltd. (Listed, KOSDAQ): Period as largest shareholder - January 26, 1989 to September 30, 2026; Remarks - Extinguished company

2. Relationship between the listed company and the largest shareholder (individual): In-house director

3. Transaction history between the listed company and the largest shareholder (individual) over the most recent 3 years (excluding routine transactions)

Current year: - Preceding year: - Year before that: -