Change of largest shareholder

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Incon / Change of largest shareholder / (2026.07.02) Change of largest shareholder

Change of largest shareholder

1. Change details Largest shareholder before change: K-Bio Labs Co., Ltd.; Shares owned: 5,317,494; Ownership ratio (%): 34.21 Largest shareholder after change: Mirae I&G Co., Ltd. and 1 other; Shares owned: 12,731,767; Ownership ratio (%): 55.46

2. Reason for change: Change of largest shareholder following payment by a related party for a third-party-placement rights offering - Whether the change resulted from the acquisition of forfeited shares: No - Whether the transferred shares are subject to a mandatory holding period: No

3. Purpose of the equity acquisition: Management participation and enhancement of corporate value - Method of funding the acquisition: Own funds (KRW) 8,000,000,567; Borrowed funds (KRW) -; Lender: -; Borrowing period: - to -; Collateral details: - - Plans for appointment/dismissal of officers after the acquisition: Not applicable

4. Change date: 2026-07-02 5. Change confirmation date: 2026-07-02

6. Other material matters for reference in investment decisions (1) This disclosure concerns the change of largest shareholder resulting from the completed payment of a third-party-placement rights offering to Mirae I&G Co., Ltd., an affiliate of the Company. (2) The 7,414,273 shares acquired through this rights offering will be placed under a mandatory one-year holding period with the Korea Securities Depository immediately upon listing. (3) The "ownership ratio before change (%)" in "1. Change details" above and the "equity ratio before change (%)" in the "detailed change information" below are calculated based on the total number of issued shares before this rights offering, while the "ownership ratio after change (%)" and "equity ratio after change (%)" are calculated based on the total number of issued shares after payment for this rights offering. (4) The "5. Change confirmation date" above is the date the new largest shareholder paid in the rights offering proceeds.

* Related disclosure: 2026-06-23 Decision on rights offering (third-party placement)

[Detailed change information] Name (corporation/association/other entity name); Relationship; Before change (shares/ratio %); After change (shares/ratio %); Remarks K-Bio Labs Co., Ltd.: Largest shareholder before change; 5,317,494 / 34.21; 5,317,494 / 23.16; Related party of the largest shareholder after change Mirae I&G Co., Ltd.: Largest shareholder after change; - / -; 7,414,273 / 32.29; -

[Matters concerning the largest shareholder after the change (where it is a general corporation)] 1. Basic information on the corporation Corporation name: Mirae I&G Co., Ltd. Nationality: Republic of Korea Address (head office) [disclosed up to town/township/district level]: Samseong-ro, Gangnam-gu, Seoul Corporation registration number: 110111-0100951 Main business: Computer programming, system integration and management

- Status of the largest shareholder, representative director/executive officer and equity information Category: Name; Shares owned; Equity ratio (%) Largest shareholder: Stella Innovation Investment Purpose Company LLC; 8,497,892; 29.4 Representative Director: Park Woo-ram; -; -

- Career history of the largest shareholder/representative director/executive officer at listed companies Name: Park Woo-ram; Company: Humasis Co., Ltd.; Listed status: Listed (KOSDAQ); Delisting date (if delisted): -; Position: Representative Director; Date joined: 2026-03-31; Date left: -; Remarks: - Name: Park Woo-ram; Company: Mirae I&G Co., Ltd.; Listed status: Listed (KOSPI); Delisting date (if delisted): -; Position: Representative Director; Date joined: 2026-03-31; Date left: -; Remarks: -

- History as largest shareholder of listed companies Name; Company; Listed status; Delisting date (if delisted); Period as largest shareholder (start/end); Remarks: -; -; -; -; -/-; -

2. Key financial matters, etc. (Unit: KRW million) Fiscal year: 2025, fiscal year-end December Total assets: 70,535; Capital stock: 14,439 Total liabilities: 21,892; Revenue: 14,129 Total equity: 48,643; Net income (loss): -2,600 External auditor: Shinwoo Accounting Corporation Suspension of business: No Audit opinion: Unqualified Closure of business: No

3. Relationship with the listed company - Relationship between the listed company and the largest shareholder (corporation): - - Relationship between the listed company's officers, etc. and the largest shareholder (corporation): Name -; Relationship with largest shareholder (corporation) -

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: Rights offering (third-party placement) Prior year: - Year before that: -