[Amended] Material event report (rights offering)

What happened

Material Event Report (Decision on Rights Offering) [Form version] 6.3

Soosung Webtoon Co., Ltd.

Amendment Report (Filing) July 13, 2026

1. Disclosure document being amended: Decision on rights offering 2. Original filing date of the disclosure document being amended: January 14, 2026 3. Amendment details:

Item: Decision on rights offering Reason for amendment: The rights-offering decision is cancelled pursuant to an agreement to withdraw the rights offering. Before amendment: Decision on rights offering After amendment: Withdrawal of rights offering

Material Event Report / Korea Exchange Disclosure Obligation To the Financial Services Commission / Korea Exchange January 14, 2026

Company name: Soosung Webtoon Co., Ltd. CEO: Yoo Young-hak Head office address: 42, Baetgil 1-ro, Seo-gu, Incheon (Phone) 032-820-5160 (Website) http://www.soosung.com Preparer: (Title) Head of Logistics Business Division (Name) Jang Tae-hoon (Phone) 032-820-5160

Decision on Rights Offering

1. Type and number of new shares: common shares (shares) -; other shares (shares) - 2. Par value per share (KRW): - 3. Total shares issued before the capital increase: common shares (shares) -; other shares (shares) - 4. Purpose of capital raising: facility funds (KRW) -; business-transfer funds (KRW) -; working capital (KRW) -; debt repayment funds (KRW) -; funds to acquire securities of another company (KRW) -; other funds (KRW) - 5. Method of capital increase: Third-party placement Matters concerning other shares: Articles of incorporation basis -; nature of the shares -; other - 6. New-share issue price: common shares (KRW) -; other shares (KRW) - 7. Base share price: common shares (KRW) -; other shares (KRW) - 7-1. Method of calculating base share price: The lower of [the simple average of the weighted average closing prices over the past one month, one week, and most recent trading day, counted from the day before the board resolution date] and [the weighted average closing price on the most recent trading day] 7-2. Discount or premium to the base share price (%): - 7-3. Basis for the discount (premium) rate: - 8. Articles of incorporation basis for the third-party placement: - 9. Payment date: - 10. Dividend record date for new shares: - 11. Scheduled date for delivery of new share certificates: - 12. Scheduled listing date of new shares: - 13. Whether this constitutes a backdoor listing due to an in-kind contribution: No Whether there is an in-kind contribution: Yes Whether the in-kind-contribution assets include shares of an unlisted company: No Value of shares to be contributed in kind (KRW): -; as a percentage of the company's most recent fiscal year-end total assets (%): -; number of shares to be paid in: - 14. Whether the backdoor-listing requirements are met: Not applicable 15. Board resolution date (decision date): January 14, 2026 Outside directors present: 3; absent: 0 Auditor (audit committee member) present: Present 16. Whether subject to filing of a securities registration statement: No 17. Reason if exempted from filing: Exempt (private placement, one-year mandatory holding period) 18. Whether subject to a period during which short-sale subscriptions are prohibited: No; start date -; end date - 19. Whether subject to Fair Trade Commission reporting: Not applicable 20. Other matters material to investment decisions This disclosure concerns the material event report (decision on rights offering) decided at the company's initial board meeting on January 14, 2026; the rights-offering decision is cancelled pursuant to an agreement to withdraw the rights offering.

Table to be added when the base share price uses the lower of [the simple average of the weighted average closing prices over the past one month, one week, and most recent trading day] and [the weighted average closing price on the most recent trading day] (Unit: shares, KRW) Category: Trading volume; Trading value; Weighted average price Weighted average price over the past one month (A): -; -; - Weighted average price over the past one week (B): -; -; - Weighted average price on the most recent trading day (C): -; -; - Simple average of (A), (B), (C) (D): - Base share price: the lower of (C) and (D) Discount or premium rate (%): - Issue price: -

[Basis, purpose, etc. of the third-party placement] Articles of incorporation basis for the third-party placement: - Purpose of the third-party placement: -

[Specific purpose of use of funds raised through the third-party placement] [In the case of funds to acquire securities of another company / business-transfer funds] Purpose of funds; counterparty; issuer of securities*; issuer's business description (details of business transferred); basis for determining the acquisition price** Funds to acquire securities of another company: -; -; -; - * The issuer of securities is stated only in the case of funds to acquire securities of another company, and in such case the issuer's key financial matters for its most recent fiscal year-end are stated in the table below (except where the issuer is subject to filing a business report). ** Where an external valuation was obtained, state the name of the valuation institution, valuation date and results; if no external valuation was obtained, state whether exempt from external valuation and the basis therefor, and the basis for determining the acquisition/transfer price (including the calculation method and any legal basis, if any).

[Selection process, transaction history, allotment details, etc. for each third-party placement allottee] Third-party placement allottee; relationship with the company or its largest shareholder; selection process; transactions and plans within 6 months before/after the capital-increase decision; number of shares allotted (shares); note -; -; -; -; -; -