[Amended] Material event report (rights offering)

What happened

AMENDMENT (August 26, 2026) 1. Disclosure document subject to amendment: Material event report (rights offering decision) 2. Original submission date of the disclosure document subject to amendment: 2025-12-29 3. Amended item Item: Rights offering decision Reason for amendment: Board decision to withdraw Before amendment: Rights offering decision After amendment: Withdrawal of rights offering decision

Material event report / Exchange reporting obligation matter To the Financial Services Commission / Korea Exchange August 26, 2026 Company name: Bucket Studio Co., Ltd. CEO: Kang Ji-yeon Head office address: 21 Eonju-ro 135-gil, Nonhyeon-dong, Gangnam-gu, Seoul Phone: 02-3452-5079 Website: http://www.bucketstudio.co.kr Preparer: Lee Kyung-yeol, Managing Director, Phone 02-3452-5079

Rights offering decision

1. Type and number of new shares Common shares (shares): - Other shares (shares): -

2. Par value per share (KRW): -

3. Total shares issued before capital increase Common shares (shares): - Other shares (shares): -

4. Purpose of funding Facility funds (KRW): - Business acquisition funds (KRW): - Working capital (KRW): - Debt repayment funds (KRW): - Funds to acquire securities of other companies (KRW): - Other funds (KRW): -

5. Capital increase method Third-party allotment capital increase [Matters concerning other shares] Basis in articles of incorporation: -; share terms: -; other: -

6. New share issue price Common shares (KRW): - Other shares (KRW): -

7. Reference share price Common shares (KRW): - Other shares (KRW): - 7-1. Method of calculating reference share price: Appraisal value for a stock with no established market price 7-2. Discount or premium rate on reference share price (%): - 7-3. Basis for discount (premium) rate: -

8. Basis in articles of incorporation for third-party allotment: - 9. Payment date: - 10. Dividend record date for new shares: - 11. Expected date of delivery of new share certificates: - 12. Expected listing date of new shares: -

13. Whether this constitutes backdoor listing via in-kind contribution No - Whether there is an in-kind contribution: No - Whether the in-kind contribution assets include shares of an unlisted corporation: Not applicable - In-kind contribution value of shares to be paid in: in-kind contribution value (KRW) -; as % of the Company's most recent fiscal year total assets -; number of shares to be paid in -

14. Whether backdoor listing requirements are met: Not applicable

15. Board resolution date (decision date): - - Independent (outside) director attendance: present (persons) -, absent (persons) - - Auditor (audit committee) attendance: -

16. Subject to securities registration statement: No 17. Reason for exemption, if applicable: -

18. Whether subscription falls within a period when short selling is prohibited: No; start date -; end date -

19. Subject to Fair Trade Commission reporting: Not applicable

20. Other matters for investment reference Where a listed corporation issues a stock with no market price formed in the securities market, the following information is additionally stated (unit: KRW, %) Trading-suspension information / reference share price evaluation method / change ratio vs. closing price (B-A)/A x 100 / external appraisal Trading suspension date / last closing price before suspension (A) / evaluation method / evaluation amount (B) / whether performed / name of appraisal institution: all -

[Basis, purpose, etc. for third-party allotment] Articles-of-incorporation basis for third-party allotment: - Purpose of third-party allotment capital increase: -

[Specific purpose of use of funds raised via third-party allotment] [For working capital/other funds] (unit: KRW) Fund purpose: detailed breakdown; expected amount to be used by year 2026 / 2027 / 2028 and after / total Working capital: - / - / - / - / -

[Selection process, transaction details, allotment details, etc. by third-party allottee] Third-party allottee / relationship with the Company or largest shareholder / selection process / transactions and plans within 6 months before and after the capital-increase decision / number of shares allotted (shares) / remarks: all -