Change of largest shareholder

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KS Industry/Change of Largest Shareholder/(2026.10.01) Change of Largest Shareholder

Change of Largest Shareholder 1. Change Details Previous largest shareholder, etc.: KS I No.1 Growth Investment Shares held: 1,548,786 Ownership (%): 15.63 New largest shareholder, etc.: eMedison Co., Ltd. Shares held: 4,885,993 Ownership (%): 49.3 2. Reason for Change: Third-party placement rights offering - Change due to acquisition of forfeited shares: No - Mandatory holding period for transferred shares: Yes 3. Purpose of Equity Acquisition: Management participation - Method of funding acquisition: Own funds (KRW): 5,999,999,404; Borrowed funds (KRW): -; Lender: -; Borrowing period: - ~ -; Collateral details: - - Plan to appoint/dismiss officers after acquisition: New officers are expected to be appointed. 4. Change Date: 2026-10-01 5. Change Confirmation Date: 2026-10-01 6. Other Matters for Investment Reference - The "ownership ratio (%) before/after change" in Item 1 above is calculated based on 9,910,487 voting common shares issued. - The new shares issued through this rights offering will be subject to a one-year lock-up. - "4. Change Date" and "5. Change Confirmation Date" above are the payment date of the rights offering. - "2. Key Financial Matters" below is as of the end of fiscal year 2025. ※ Related Disclosures 2026-09-11 Rights offering decision (third-party placement) 2026-09-22 Rights offering decision (third-party placement) 2026-09-22 Resolution to convene general meeting of shareholders (extraordinary general meeting) 2026-09-23 Public notice of convening general meeting of shareholders

[Detailed Change Information] Name (corporation/partnership/other entity) | Relationship | Before Change (Shares / Ownership %) | After Change (Shares / Ownership %) | Remarks KS I No.1 Growth Investment: Previous largest shareholder; Before: 1,548,786 shares, 15.63%; After: 1,548,786 shares, 15.63%; Remarks: - eMedison Co., Ltd.: Previous largest shareholder (as stated in the filing); Before: - shares, -%; After: 4,885,993 shares, 49.30%; Remarks: -

[Matters Concerning the New Largest Shareholder After Change (general corporation)] 1. Basic Information of the Corporation Corporate Name: eMedison Co., Ltd. Nationality: Republic of Korea Address (head office location): Gangseo-ro, Gangseo-gu, Seoul Corporate Registration Number: 110111-7165932 Main Business: Sale of original artworks - Status of Largest Shareholder/CEO/Representative Executive Officer and Equity Information Category: CEO; Name: CHEN YANG; Shares Held: 5,300,000; Ownership (%): 100 Category: CEO; Name: CHEN YANG; Shares Held: 5,300,000; Ownership (%): 100 - Officer Career History of Largest Shareholder/CEO/Representative Executive Officer Name: -; Company Name: -; Listed Status: -; Delisting Date: -; Position: -; Joining Date: -; Resignation Date: -; Remarks: - - History as Largest Shareholder of a Listed Company Name: -; Company Name: -; Listed Status: -; Delisting Date: -; Period as Largest Shareholder (Start-End): -; Remarks: - 2. Key Financial Matters, etc. (Unit: KRW million) Fiscal Year: 2025, Settlement Month: December Total Assets: 5,983 Capital Stock: 530 Total Liabilities: 6,074 Revenue: 86 Total Equity: -91 Net Income (Loss): -630 External Auditor: - Suspension of Business: No Audit Opinion: - Closure of Business: No 3. Relationship with the Listed Company - Relationship between the listed company and the largest shareholder (corporation): - - Relationship between officers of the listed company and the largest shareholder (corporation): Name: -; Relationship: - 4. Transaction History Between the Listed Company and the Largest Shareholder (Corporation) Over the Last 3 Years (excluding ordinary transactions) Category: Transaction details; Current year: -; Prior year: -; Year before prior year: -