Capital Research raises stake to 6.54% via market purchase

Report on Large Holdings of Stocks, etc. (Abbreviated Form) Version 6.0 Eugene Technology Co., Ltd. Filing date: 2026-05-04 Report on Large Holdings of Stocks, etc. (Abbreviated form: filings under Article 147 of the Financial Investment Services and Capital Markets Act where the purpose is NOT to influence management control, and where the filer is a professional investor under the second sentence of Paragraph 1 of the same Article) To: Financial Services Commission Reporting obligation date: May 4, 2026 To: Korea Exchange Report reference date: May 28, 2026 Filer: Capital Research and Management Company Authorized representative: Attorney Han Byung-ha [Summary Information] Professional investor classification under reporting exemption: - Issuer name: Eugene Technology Co., Ltd. Relationship to issuer: Other Report type: Change Number and ratio of holdings: - Previous report: 1,198,301 shares (5.23%) - This report: 1,497,989 shares (6.54%) Voting rights: N/A (both reports) Reason for filing: Purchase of issuer's shares on the open market for simple investment purposes Holding purpose: Simple investment The filer confirms that, as of the report reference date, the holdings of the filer and its special related parties have been accurately prepared in accordance with applicable laws and reporting instructions, and that there are no false statements or omissions of material facts. Confirmation document (Simple Investment Purpose): simple_investment_confirmation.jpg Translation: simple_investment_confirmation_translation.jpg Part 1: Overview of the Report 1. Issuer Information - Company name: Eugene Technology Co., Ltd. - Company code: 084370 - Corporation type: KOSDAQ-listed corporation - Total issued shares with voting rights: 22,916,042 2. Large Holder Information A. Filer (1) Filer overview - Report type: Change / Individual - Filer classification: Foreign corporation - Nationality: USA - Name: Capital Research and Management Company - Address: 333 South Hope Street, 55th Floor, Los Angeles, California 90071-1406 - Registration: CRD 110885 - Business: Investment advisory - Relationship to issuer: Other - Contact: Kim & Chang law firm, Attorney Han Byung-ha, Tel: 02-648-****, Fax: 02-737-****, Email: ***a.han@kimchang.com (2) Specific details on filer - Legal nature: Corporation - Total assets / liabilities / capital / paid-in capital: - - Representative: Donald H. Rolfe (Secretary) - Decision-making body: Board of Directors and executives - Largest shareholder: The Capital Group Companies, Inc. - Largest shareholder ownership: 100% B. Special related parties: None C. Collective investment business operator: Not applicable 3. Number and Ratio of Holdings Previous report (April 30, 2026): - Filer: Capital Research and Management Company - Special related parties: 1 - Shares, etc.: 1,198,301 (5.23%) - Common shares: 1,198,301 (5.23%) - Total voting shares issued: 22,916,042 This report (May 28, 2026): - Filer: Capital Research and Management Company - Special related parties: 1 - Shares, etc.: 1,497,989 (6.54%) - Common shares: 1,497,989 (6.54%) - Total voting shares issued: 22,916,042 Change: +299,688 shares (+1.31 percentage points) Note 1: The above holdings and ratios represent the number and ratio of the issuer's shares held in client investment accounts, etc. managed by the filer as an investment advisor (holdings equivalent to ownership). Note 2: As of the filing date, none of the funds or clients managed by the filer (an investment advisor) individually owns 5% or more. 4. Reason for Change - Method of change: On-market purchase of the issuer's shares - Reason for change: Simple investment purpose. This filing is made by the filer as Investment Manager, exercising rights of acquisition and disposal over the issuer's shares as the holder. - Reason for amendment: - Part 2: Details of Large Holdings 1. Holdings by type of shares (Filer and special related parties) - Filer (Capital Research and Management Company, CRD 110885): - Common shares: 1,497,989 - Other instruments (warrants, CBs, BWs, EBs, DRs, etc.): None - Total: 1,497,989 shares (6.54%) - Special related parties: None - Total voting shares issued (I): 22,916,042 - Potential shares held (H): - - Holding ratio of shares, etc.: 6.54% - Holding ratio of common shares (A/I): 6.54% Note: The above holdings and ratios represent the number and ratio of the issuer's shares held in client investment accounts, etc. managed by the filer as an investment advisor (holdings equivalent to ownership). 2. Proprietary vs. client account holdings (financial institutions only): Not applicable Part 3: Changes Since the Previous Report 1. Summary of changes A. Changes in shares, etc. - Filer (Capital Research and Management Company, CRD 110885): - Common shares: +299,688 - Total: +299,688 shares (+1.31%) - Special related parties: None 2. Detailed change history A. Detailed changes in shares, etc. (Unit: shares, KRW) - Filer: Capital Research and Management Company (CRD 110885) - Change date: 2026.05.04 - Method: On-market purchase (+) - Type: Common shares with voting rights - Before: 1,198,301 - Change: +293,137 - After: 1,491,438 - Acquisition unit price: KRW 132,124 - Remarks: Filing [Translation truncated]