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

What happened

HS Hyosung Advanced Materials / Rights Offering Decision (Material Event of Subsidiary) / (2026.07.09) Rights Offering Decision (Material Event of Subsidiary), material event report of the subsidiary HS Hyosung Energy Solution BV

1. Type and number of new shares: common shares 60,000,000; special class shares 2. Par value per share (KRW): 575 3. Total shares issued before the capital increase: common shares 270,000,000; special class shares 4. Purpose of financing: facility funds,; business-acquisition funds,; working capital KRW 34,480,000,000; debt repayment,; funds to acquire securities of other companies,; other 5. Capital increase method: shareholder rights offering 6. New share issue price: confirmed price, common shares KRW 575; special class shares 7. Method of determining the issue price: initial issue price 8. Record date for allotment of new shares: 2026-06-29 9. New shares allotted per share held: 0.2222222 10. Preferential allotment ratio for employee stock ownership association members: - 11. Expected subscription period: employee stock ownership association,; existing shareholders 12. Payment date: 2026-07-24 13. Plan for handling forfeited shares: - 14. Dividend record date for new shares: - 15. Expected date of delivery of new share certificates: - 16. Lead underwriter (if not a direct public offering): - 17. Whether subscription rights are transferable: not applicable 18. Board resolution (decision) date: 2026-07-08 (outside directors attendance:; audit committee attendance: ) 19. Whether a securities registration statement must be filed: No 20. Reason for exemption: not a public offering, and the subsidiary is an overseas unlisted company 21. Whether subject to Fair Trade Commission reporting: No 22. Other material matters relevant to investment decisions 1. HS Hyosung Energy Solution BV is the company's subsidiary; it changed its name from Extra Mile Materials BV to HS Hyosung Energy Solution BV on June 19, 2026. For the initial equity acquisition, see the company's disclosure "Decision to Acquire Shares and Equity Securities of Another Company" filed on March 31, 2026. 2. The above funding amount of EUR 20 million is converted using the exchange rate as of July 9 (1 EUR = KRW 1,724.00). 3. This rights offering is a non-pro-rata shareholder rights offering; it represents EUR 20 million of the total EUR 60 million the largest shareholder, HS Hyosung Advanced Materials Co., Ltd., plans to invest. 4. The above issue price is the same share price applied to the initial equity conversion and in-kind contribution, and has been agreed to apply equally to capital contributed via cash calls. 5. The payment date above is the expected deadline for payment of the share subscription price. 6. The board resolution (decision) date above is based on local time. 7. The subsidiary's total assets below are as of the end of 2025. 8. Excluding this capital contribution, the remaining committed cash-call balance is EUR 40 million.

Related disclosures: None

[Matters concerning the subsidiary] Subsidiary name: HS Hyosung Energy Solution BV (English: HS Hyosung Energy Solution BV) Representatives: Lee Gi-su, Roderick Lindner Main business: research, manufacturing and sale of secondary-battery materials and batteries Whether a major subsidiary: Yes Subsidiary's total assets (KRW): 8,644,950 Parent company's consolidated total assets (KRW): 3,903,414,776,514 Ratio to the parent's consolidated total assets: 0.0002%