Material event report (decision to redeem own convertible bonds early)

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Material Event Report (Decision to Acquire Own Convertible Bonds Prior to Maturity) 6.0

Satoshi Holdings Co., Ltd. Material Event Report / Matter Subject to Exchange Reporting Obligation To: Financial Services Commission / Korea Exchange

Date: August 12, 2026 Company name: Satoshi Holdings Co., Ltd. Representative Directors: Hong Sang-hyeok, Yu Byeong-gil (co-CEOs) Head office address: 5 Seolleung-ro 135-gil, Gangnam-gu, Seoul (Nonhyeon-dong) (Telephone) 02-3012-0033 (Website) http://satoshi.holdings Preparer: (Title) Representative Director (Name) Hong Sang-hyeok (Telephone) 070-4211-0750

Decision to Acquire Own Convertible Bonds Prior to Maturity

1. Type of bonds: Series 13, unregistered bonds with interest coupons, unsecured, privately placed convertible bonds 2. Bond issue date: June 30, 2026 3. Bond issuance method: Private placement 4. Bond maturity date: June 30, 2029 5. Total face (electronically registered) value of bonds (KRW): 10,000,000,000 6. Face (electronically registered) value of bonds to be acquired (KRW): 2,000,000,000 7. Acquisition decision date: August 12, 2026 8. Acquisition amount - Amount (KRW): 2,007,973,276 - Basis of calculation: Principal and interest - Scheduled payment date: August 12, 2026 - Source of acquisition funds: Own funds 9. Acquisition method: Over-the-counter purchase 10. Reason for acquisition before maturity: Decision to acquire the bonds before maturity by agreement with the bondholders 11. Future handling plan: Planned resale 12. Conversion details - Conversion ratio (%): 100 - Conversion price as of report date (KRW/share): 5,247 - Type of shares to be issued upon conversion: Satoshi Holdings Co., Ltd. registered common shares - Number of shares: 381,170 - Ratio to total shares outstanding (%): 6.82 - Conversion request period: Start June 30, 2027; End May 31, 2029 13. Remaining face (electronically registered) value of bonds after acquisition (KRW): 8,000,000,000 14. Subject to Fair Trade Commission reporting: Not applicable 15. Other matters material to investment decisions - The above bond acquisition amount includes principal and interest. - The above acquisition decision date is the board resolution date, and the scheduled payment date is the date of actual bond acquisition. - The ratio of shares to be issued upon conversion to total shares outstanding above is the number of shares to be issued and their ratio to total shares outstanding if the convertible bonds now being acquired are later converted. - Bonds the company comes to hold as a result of this acquisition are planned to be resold to related parties or third parties, with details to be disclosed separately.

[Matters Concerning Sellers] Seller: Sangsangin Savings Bank Co., Ltd. - Relationship with the company or largest shareholder: - - Basis of selection: Bondholder of this bond - Transaction history/plan within 6 months before and after the acquisition decision: Subscribed to Series 13 CB - Face value of bonds sold (KRW): 1,000,000,000

Seller: Sangsangin Plus Savings Bank Co., Ltd. - Relationship with the company or largest shareholder: - - Basis of selection: Bondholder of this bond - Transaction history/plan within 6 months before and after the acquisition decision: Subscribed to Series 13 CB - Face value of bonds sold (KRW): 1,000,000,000