Rights offering (paid-in capital increase) decision (subsidiary)

What happened

Rights offering (paid-in capital increase) decision (subsidiary's material management matter) - Report on material management matter of subsidiary SoluM USA Inc.

1. Type and number of new shares Common shares: 300,000 Preferred shares: -

2. Par value per share (KRW): 141,500

3. Total shares issued before the capital increase Common shares: 670,000 Preferred shares: -

4. Purpose of raising funds Facility funds (KRW): - Business acquisition funds (KRW): - Working capital (KRW): 42,450,000,000 Debt repayment funds (KRW): - Funds to acquire securities of other companies (KRW): - 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 Confirmed issue price - Common shares (KRW): 141,500; Preferred shares (KRW): - Expected issue price - Common shares (KRW): -; Expected confirmation date: -; Preferred shares (KRW): -; Expected confirmation date: -

7. Method of determining issue price: -

8. New share allotment record date: -

9. Number of new shares allotted per share: -

10. Preferential allotment ratio for employee stock ownership association members (%): -

11. Expected subscription dates Employee stock ownership association - Start date: -; End date: - Existing shareholders - Start date: -; End date: -

12. Payment date: 2026-08-24

13. Plan for handling forfeited shares: -

14. Dividend record date for new shares: -

15. Expected new share certificate delivery date: -

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

17. Whether new share subscription rights are transferable: Not applicable

18. Board resolution date (decision date): 2026-08-12 - Outside director attendance: Present (persons): -; Absent (persons): - - Auditor (audit committee member who is not an outside director) attendance: -

19. Whether subject to securities registration statement filing: No

20. If exempted from filing, the reason: Does not constitute a public offering, and the subsidiary concerned is an unlisted overseas corporation.

21. Whether subject to Fair Trade Commission filing: No

22. Other important matters relevant to investment decisions - This disclosure concerns the rights offering decision of SoluM USA Inc. ("SUI"), a wholly owned (100%) overseas subsidiary of the Company. - This rights offering is a capital investment to secure facility investment funds and working capital for SUI due to increased sales, and SoluM Co., Ltd. plans to participate at a 100% equity stake. - The capital increase amount is USD 30,000,000. As a result, the amount converted into KRW may change depending on the applicable exchange rate on the remittance and receipt dates. - The above "1. Type and number of new shares" and "2. Par value per share" are based on USD, at USD 100 per share. - The foreign currency amounts such as "4. Facility funds" above were converted using the basic exchange rate (KRW 1,415.00) as of the date this disclosure was prepared (August 13, 2026). - The above "12. Payment date" is an expected date and may change depending on future consultation and approval processes with relevant institutions. - Among the [Matters related to the subsidiary] below, "Total consolidated assets of the controlling company (KRW)" is as of the end of 2025.

* Related disclosures: -

[Matters related to the subsidiary] Subsidiary name: SoluM USA Inc. English name: SoluM USA Inc. Representative: Jung Hee-yong Main business: Production of power, ESL and other products Whether a major subsidiary: Applicable Total assets of the subsidiary (KRW): 221,188,902,613 Total consolidated assets of the controlling company (KRW): 1,276,520,893,602 As percentage of controlling company's consolidated total assets (%): 17.3