Rights offering: final issue price set

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Thumbage / Rights Offering: Final Issue Price Set / (2026.08.04) Rights Offering: Final Issue Price Set

1. Planned issuance details: (a) Type of shares: registered common shares. (b) Number of shares: 9,800,000. 2. Final issue price (per share): (a) Final price (KRW): 688. (b) First-stage issue price (KRW): 598. (c) Second-stage issue price (KRW): 981. 3. Par value (KRW): 100. 4. Determination date: August 3, 2026. 5. Other matters for investors' reference: Under Article 5-18 of the Regulation on Issuance and Disclosure of Securities, the former price-determination procedure for shareholder-allotment rights offerings has been abolished and price-setting liberalized, allowing the issue price to be set freely; however, to avoid market confusion and in keeping with existing practice, the price was set by analogy with Article 57 of the former Regulation on Issuance and Disclosure of Securities, as follows. Basis for the first-stage issue price: using the 3rd trading day before the new-share allotment record date as the base date, the lower of (i) the arithmetic mean of the 1-month, 1-week and base-date volume-weighted average KOSDAQ trading prices and (ii) the base-date volume-weighted average price is used as the "base share price," with a 25% discount applied per the formula: First-stage issue price = [base share price × (1 − discount rate)] / [1 + (rights-offering ratio × discount rate)]. Amounts below the quotation unit are rounded up, and if the result is at or below par value, par value is used. Basis for the second-stage issue price: using the 3rd trading day before the existing-shareholder subscription date as the base date, the lower of (i) the arithmetic mean of the 1-week and base-date volume-weighted average KOSDAQ trading prices and (ii) the base-date volume-weighted average price is used as the "base share price," with a 25% discount applied per the formula: Second-stage issue price = base share price × (1 − discount rate). Same rounding and par-value floor apply. Basis for the final issue price: the final issue price is the lower of the first-stage and second-stage issue prices; however, under Capital Markets Act Article 165-6 and Regulation on Issuance and Disclosure of Securities Article 5-15-2, if that lower price is below the price obtained by applying a 40% discount to the volume-weighted average price over the 3rd to 5th trading days before the existing-shareholder subscription date, that latter, 40%-discounted price becomes the final issue price: Final issue price = Max[Min(first-stage issue price, second-stage issue price), 60% of the base share price]. Same rounding and par-value floor apply. Note: the general-public-offering issue price is the same as the final issue price applied to the existing-shareholder subscription.

Related disclosures: 2026-04-10 Rights offering decision (shareholder allotment with public offering of forfeited shares); 2026-04-30 Securities registration statement (equity securities); 2026-05-22 Rights offering decision (shareholder allotment with public offering of forfeited shares); 2026-05-22 Securities registration statement (equity securities); 2026-06-12 Rights offering decision (shareholder allotment with public offering of forfeited shares); 2026-06-12 Securities registration statement (equity securities); 2026-06-25 Securities registration statement (equity securities); 2026-06-26 Securities registration statement (equity securities); 2026-06-29 Rights offering: first-stage issue price determined; 2026-06-29 Rights offering decision (shareholder allotment with public offering of forfeited shares); 2026-06-29 Securities registration statement (equity securities); 2026-06-29 Prospectus; 2026-06-29 Ex-rights (rights offering); 2026-07-01 Rights offering decision (shareholder allotment with public offering of forfeited shares); 2026-07-16 New listing of pre-emptive rights certificates (Thumbage 35R).