Change of largest shareholder

What happened

Speco/Change of Largest Shareholder/(2026.07.15) Change of Largest Shareholder

Change of Largest Shareholder

1. Details of the Change Largest shareholder before the change: Kim Jong-seop; Shares held: 4,917,071; Ownership ratio (%): 33.55 Largest shareholder after the change: Nexa Korea Ltd.; Shares held: 4,917,071; Ownership ratio (%): 33.55

2. Reason for the Change: Change of largest shareholder due to the execution and closing of a share transfer agreement resulting in a change of the largest shareholder - Whether the change resulted from the acquisition of forfeited shares: No - Whether the transferred shares are subject to a mandatory holding (lock-up) period: No

3. Purpose of the Equity Acquisition: Acquisition of management control - Method of financing the acquisition: Own funds (KRW): 434,874,250; Borrowed funds (KRW): 8,170,000,000; Lender: Hana Bank; Borrowing period: 2026-07-15 ~ 2027-07-15; Collateral details: Building owned by Nexa Korea Ltd. - Plans to appoint or dismiss officers after the acquisition: -

4. Date of Change: 2026-07-15 5. Date Change Confirmed: 2026-07-15

6. Other Matters for Reference in Investment Decisions - The company's former largest shareholder, Kim Jong-seop, executed a share transfer agreement to transfer 4,917,071 common shares to Nexa Korea Ltd., which has been completed as described above. - The "ownership ratio (%)" in "1. Details of the Change" above was calculated based on the company's total shares issued of 14,655,470 shares. - The "shares held after the change" in "1. Details of the Change" above is based on the shares acquired (4,917,071 shares) under this share transfer agreement. - The "4. Date of Change" and "5. Date Change Confirmed" above are the closing date of the share transfer agreement that resulted in the change of the largest shareholder. Related disclosures: -

[Detailed Change Information] Name (corporation/association/other entity name): Kim Jong-seop; Relationship: Former largest shareholder; Before the change: Shares 4,917,071, Ratio 33.55%; After the change: Shares 0, Ratio 0%; Remarks: - Name: Nexa Korea Ltd.; Relationship: New largest shareholder; Before the change: Shares 0, Ratio 0%; After the change: Shares 4,917,071, Ratio 33.55%; Remarks: -

[Matters Concerning the New Largest Shareholder (General Corporation)] 1. Basic Corporate Information Corporate name: Nexa Korea Ltd.; Nationality: Republic of Korea; Address (head office) [district/town/dong only]: Soi-myeon, Eumseong-gun, Chungcheongbuk-do; Corporate registration number: 154514-0000263 Main business: Holding-company business, etc.: - Status of the largest shareholder, CEO, and representative executive officer, and equity information: CEO: Kim Min-su; Shares held: -; Ownership ratio (%): 100.00 Largest shareholder: -; Shares held: -; Ownership ratio (%): -

Officer career history of the largest shareholder/CEO/representative executive officer: Name: Kim Min-su; Company: Samick Musical Instruments Co., Ltd.; Listing status: Listed (KOSPI); Delisting date (if delisted): -; Position: CEO; Date joined: 2002-10-07; Date left: -; Remarks: -

History of the largest shareholder/CEO/representative executive officer as largest shareholder of a listed company: Name -; Company -; Listing status -; Delisting date -; Period as largest shareholder (start/end) -; Remarks -

2. Key Financial Matters, etc. (Unit: KRW million) Fiscal year: 2025; Fiscal year-end: December; Total assets: 42,473; Capital: 23,088; Total liabilities: 19,639; Revenue: 241; Total equity: 22,834; Net income/loss: -254; External auditor: Not applicable; Suspension of business: No; Audit opinion: Not applicable; Business closure: No

3. Relationship with the Listed Company Relationship between the listed company and the new largest shareholder (corporation): - Relationship between officers, etc. of the listed company and the new largest shareholder (corporation): Name -; Relationship with the new largest shareholder -

4. Transactions in the Last 3 Years Between the Listed Company and the New Largest Shareholder (Corporation) (excluding routine transactions) Current year: -; Prior year: -; Year before that: -