[Amended] Rights offering (paid-in capital increase) decision (subsidiary)

What happened

Alux / Rights Offering Decision (Subsidiary's Major Management Matter) / (2026.08.18) Rights Offering Decision (Subsidiary's Major Management Matter)

Amendment Report Amendment Date: 2026-08-18

1. Disclosure Document Being Amended: Rights Offering Decision (Subsidiary's Major Management Matter) 2. Filing Date of the Disclosure Document Being Amended: 2026-04-27 3. Reason for Amendment: Change of payment date following a court decision approving the in-kind capital contribution 4. Items Corrected Item: Payment Date; Before Correction: 2026-07-31; After Correction: 2026-08-18

- Rights Offering Decision (Subsidiary's Major Management Matter) Report of a Major Management Matter of the Subsidiary, ER Co., Ltd.

1. Type and Number of New Shares Common Shares (shares): 730,131 Preferred/Class Shares (shares): -

2. Par Value per Share (KRW): 5,000

3. Total Shares Outstanding Before the Offering (shares) Common Shares (shares): 180,000 Preferred/Class Shares (shares): -

4. Purpose of Capital Raising Facility Funds (KRW): - Business Acquisition Funds (KRW): - Working Capital (KRW): - Debt Repayment Funds (KRW): - Funds to Acquire Securities of Another Company (KRW): 7,958,427,900 Other Funds (KRW): -

5. Method of Capital Increase: Shareholder-allocated rights offering

[In the Case of a Shareholder-Allocated Rights Offering] 6. New Share Issue Price Final Issue Price: Common Shares (KRW): 10,900; Preferred/Class Shares (KRW): - Expected Issue Price: Common Shares (KRW): -; Expected Determination Date: -; Preferred/Class Shares (KRW): -; Expected Determination Date: -

7. Method of Determining the Issue Price: Determined by the Board of Directors of ER Co., Ltd. following review and agreement

8. Record Date for New Share Allotment: 2026-01-01

9. Number of New Shares Allotted per Share (shares): 4.06

10. Preferential Allotment Ratio for Employee Stock Ownership Association Members (%): -

11. Scheduled Subscription Date Employee Stock Ownership Association: Start Date: -; End Date: - Existing Shareholders: Start Date: 2026-04-27; End Date: 2026-04-27

12. Payment Date: 2026-07-31

13. Plan for Handling Forfeited Shares: -

14. Dividend Record Date for New Shares: 2026-01-01

15. Scheduled Date for Delivery of New Share Certificates: -

16. Lead Manager (if not a direct public offering): -

17. Whether Preemptive Rights Are Transferable: Not applicable

18. Board Resolution Date (Decision Date): 2026-04-27 - Outside Directors' Attendance: Attended (persons): 1; Did Not Attend (persons): 0 - Attendance of Auditor (Audit Committee Member Who Is Not an Outside Director): Attended

19. Whether a Securities Registration Statement Must Be Filed: No

20. If Exempted from Filing, the Reason: The issuing company is a non-listed company, and under the Financial Investment Services and Capital Markets Act and its Enforcement Decree, this does not constitute a public offering or sale of securities.

21. Whether Subject to Fair Trade Commission Reporting: No

22. Other Matters for Investment Reference 1. This filing concerns the rights offering decision of ER Co., Ltd., a wholly owned (100%) subsidiary of the Company; it discloses that the Company will contribute in kind its 85.66% stake in ER VINA COMPANY LIMITED to ER Co., Ltd., and ER Co., Ltd. will decide on a rights offering in an amount corresponding to the value of that contribution. 2. The "Funds to Acquire Securities of Another Company" under item 4 above, "Purpose of Capital Raising," is the transaction value of ER VINA COMPANY LIMITED contributed to ER Co., Ltd. by the Company. 3. The "Payment Date" under item 12 above is the scheduled date for completion of the in-kind capital contribution. 4. The above schedule and other key terms of the rights offering are the expected schedule as of the time of this disclosure and may change depending on consultation with and approval from relevant laws and authorities. 5. The following information on the subsidiary is prepared as of the end of 2025.

* Related Disclosures: -

[Matters Concerning the Subsidiary] Subsidiary Name: ER Co., Ltd. (English: ER CO., LTD) Representative: Heo Woo-nyeong Principal Business: Manufacture of electronic components Whether a Major Subsidiary: Not applicable Total Assets of the Subsidiary (KRW): 5,133,148,299 Consolidated Total Assets of the Parent Company (KRW): 93,316,471,475 Ratio to the Parent Company's Consolidated Total Assets (%): 5.5