Completion report on merger, etc. (asset transfer)

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Completion report on merger, etc. 6.0 Adbiotech Co., Ltd. Completion report on merger, etc. (asset transfer)

To the Commissioner of the Financial Supervisory Service July 3, 2026

Company name: Adbiotech Co., Ltd. Representative Director: Kim Do-hyung Head office address: www.adbiotech.com (Tel) 070-4193-4006 (Website) http://www.adbiotech.com Preparer: (Title) Director (Name) Choi Kyung-min (Tel) 070-4193-4006

I. Schedule This completion report relates to the material event report (decision to acquire shares and equity securities of another company) dated July 3, 2026, and reports that the transaction was completed as of July 3, 2026 upon receipt of the shares and payment of the purchase price.

1. Details of the asset acquisition Category: Details Issuing company: Onheal Co., Ltd. Acquirer: Adbiotech Co., Ltd. Shares acquired: Onheal Co., Ltd. common shares 181,269 shares (12.28% voting interest)

2. Progress and schedule of the asset acquisition Category: Date; Remarks External valuation period: May 12, 2026 to July 2, 2026; Hyundai Accounting Corporation Board resolution date: July 3, 2026; - Material event report filing date: July 3, 2026; - Date shares received / transaction completion date: July 3, 2026; Acquisition completed

3. Method of payment for the asset acquisition Date: July 3, 2026; Amount paid (KRW): 9,969,795,000; Payment method: Cash payment

II. Changes in the equity holdings of the largest shareholder, etc. - Not applicable

III. Exercise of appraisal rights - Not applicable

IV. Creditor protection matters - Not applicable

V. Status of related litigation - Not applicable

VI. Matters concerning new share allotment, etc. - Not applicable

VII. Summary financial information before and after the [merger, etc.] (Unit: KRW) Category: Amount before asset acquisition; Increase (decrease); Amount after asset acquisition Current assets: 20,853,737,020; -; 20,853,737,020 Non-current assets: 27,553,695,083; 9,969,795,000; 37,523,490,083 Total assets: 48,407,432,103; 9,969,795,000; 58,377,227,103 Current liabilities: 31,478,383,317; -; 31,478,383,317 Non-current liabilities: 3,389,252,835; -; 3,389,252,835 Total liabilities: 34,867,636,152; -; 34,867,636,152 Capital stock: 8,180,189,500; 5,294,960,000; 13,475,149,500 Capital surplus: 35,617,130,003; 4,674,835,000; 40,291,965,003 Other components of equity: 626,171,753; -; 626,171,753 Accumulated other comprehensive income: -1,428,862,850; -; -1,428,862,850 Retained earnings: -27,671,559,596; -; -27,671,559,596 Non-controlling interests: -1,783,272,859; -; -1,783,272,859 Total equity: 13,539,795,951; 9,969,795,000; 23,509,590,951 Total liabilities and equity: 48,407,432,103; 9,969,795,000; 58,377,227,103

Note 1) The "before asset acquisition" summary financial information above is based on the consolidated financial statements in the 2025 audit report. Note 2) The "after asset acquisition" summary financial information above simply adds the amounts relating to this asset acquisition and may differ from the statement of financial position to be prepared as of the actual asset acquisition date (July 3, 2026) depending on the external auditor's audit (review) results.