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

What happened

Material event report / Exchange filing obligation matter To the Financial Services Commission / Korea Exchange July 21, 2026 Company name: Satoshi Holdings Co., Ltd. Representative Directors: Hong Sang-hyeok, Yoo Byung-gil (Co-CEOs) Head office address: 5, Seolleung-ro135-gil, Gangnam-gu, Seoul (Nonhyeon-dong) (Phone) 02-3012-0033 (Website) http://satoshi.holdings Preparer: (Title) Representative Director (Name) Hong Sang-hyeok (Phone) 070-4211-0750

Decision to redeem own convertible bonds before maturity

1. Type of bonds Series: 10th Type: unregistered, interest-bearing, unsecured, privately placed convertible bonds 2. Bond issue date: July 21, 2025 3. Bond issuance method: private placement 4. Bond maturity date: July 21, 2028 5. Total face value (electronically registered) of the bonds (KRW): 18,300,000,000 6. Face value (electronically registered) of the bonds to be acquired (KRW): 10,800,000,000 7. Date of acquisition decision: July 21, 2026 8. Acquisition amount Amount (KRW): 10,836,000,000 Basis of calculation: principal and interest Payment (scheduled) date: July 21, 2026 Source of acquisition funds: own funds and funds raised from the 14th-round convertible bonds 9. Method of acquisition: over-the-counter purchase 10. Reason for acquisition before maturity: bondholders' exercise of early redemption (put option) rights 11. Future handling plan: cancellation of the registered bond with the Korea Securities Depository (planned) 12. Matters concerning conversion Conversion ratio (%): 100 Conversion price as of the reporting date (KRW/share): 14,785 Type of shares to be issued upon conversion: registered common shares Number of shares: - Ratio to total shares outstanding (%): - Conversion request period: from July 21, 2026 to June 21, 2028 13. Remaining face value (electronically registered) of the bonds after acquisition (KRW): 7,500,000,000 14. Whether subject to Fair Trade Commission reporting: not applicable 15. Other matters for reference in investment decisions - The above bond acquisition amount includes principal and interest. - The above date of acquisition decision is the date of the board resolution, and the payment (scheduled) date is the early redemption payment date.

[Matters concerning the seller] Seller name: - Relationship with the company or the largest shareholder: - Basis of selection: - Transaction history and plans within 6 months before and after the acquisition decision: - Face value of bonds sold (KRW): - Remarks: -