[Amended] Material event report (rights offering)

What happened

Rights offering decision 6.4 Hyper Corporation Amendment report Date: August 27, 2026 1. Disclosure document being amended: material event report (rights offering decision) 2. Original filing date of the document being amended: May 13, 2026 3. Amendment details Item "Rights offering decision" - reason: withdrawal Before: the company filed a securities registration statement on May 13, 2026 via board resolution to pursue a shareholder-allocation rights offering with public subscription of forfeited shares, for the purpose of raising working capital. During the public-offering process, the Financial Supervisory Service's amendment requests and further review prolonged the offering, and the company judged this risked causing confusion for existing shareholders and new investors. Accordingly, the company decided to withdraw this rights offering for the following reasons: 1) Protection of general investors, including minority shareholders - as the offering period lengthened, the company's financial condition and market circumstances changed, and proceeding with subscription on the basis of the currently filed disclosure documents risked causing confusion to existing shareholders and new investors. 2) Need to reassess the suitability of the public-offering method itself - the company will comprehensively reassess the suitability of the public rights-offering method, the appropriateness of the funding scale, the issuance terms, and alignment with market conditions. Accordingly, pursuant to applicable law and procedure, the company is withdrawing this public rights offering and will consider re-pursuing fundraising at a more appropriate time and method. After: Rights offering decision -> Rights offering decision withdrawn

Material event report / Korea Exchange disclosure obligation To: Financial Services Commission / Korea Exchange Date: August 27, 2026 Company name: Hyper Corporation Representative directors: Lee Sang-seok, An Eun-cheol Head office: 15F, Doosan Building, 726 Eonju-ro, Gangnam-gu, Seoul (Tel) 02-6388-0720 (Website) http://www.hyper-corp.com Preparer: (Title) Team Leader (Name) Si Seong-ho (Tel) 02-6388-0720

Rights offering decision

1. Type and number of new shares: common shares -; other-class shares - 2. Par value per share (KRW): - 3. Total shares outstanding before offering: common shares -; other-class shares - 4. Purpose of capital raise: facility funds -; business-acquisition funds -; working capital -; debt repayment funds -; funds to acquire securities of another company -; other funds - 5. Method of offering: shareholder allocation with public subscription of forfeited shares 6. New share issue price: final issue price - common shares -, other-class -; expected issue price - common shares -, to be finalized -, other-class -, to be finalized - 7. Method of determining issue price: - 8. New-share record date: - 9. New shares per existing share: - 10. Preferential allotment ratio for employee stock ownership plan members: - 11. Expected subscription dates: employee stock ownership plan start -, end -; existing shareholders start -, end - 12. Payment date: - 13. Treatment of forfeited shares: - 14. Dividend start date for new shares: - 15. Expected delivery date of new share certificates: - 16. Expected listing date of new shares: - 17. Lead underwriter (if not a direct offering): - 18. Board resolution date: - (independent/outside directors present: -, absent: -; audit committee attendance: -) 19. Subject to securities registration statement: Yes 20. Reason for exemption if any: - 21. Subject to a period during which short-selling subscriptions are prohibited: No; start -, end - 22. Subject to Fair Trade Commission reporting: not applicable 23. Other material matters relevant to investment decisions: the company filed a securities registration statement on May 13, 2026 via board resolution to pursue a shareholder-allocation rights offering with public subscription of forfeited shares for working-capital purposes; Financial Supervisory Service amendment requests and further review prolonged the process, risking confusion for existing and new investors; the company accordingly decided to withdraw the offering for the reasons of (1) protecting general investors including minority shareholders amid changed financial/market conditions, and (2) needing to reassess the suitability, scale, terms and market alignment of the public offering method, and will consider re-pursuing fundraising via applicable law and procedure at a more appropriate time and method.