Change of largest shareholder

What happened

Change of largest shareholder

1. Details of change Largest shareholder, etc. before change: Satoshi Holdings Co., Ltd. Shares owned (shares): 1,000,000 Ownership ratio (%): 15.28 Largest shareholder, etc. after change: Prime Value Investment Association Shares owned (shares): 2,552,713 Ownership ratio (%): 39.01

2. Reason for change Change due to acquisition of new shares following completion of payment for a third-party placement rights offering - Whether due to acquisition of forfeited shares: No - Whether the transferred shares are subject to a mandatory holding period: No

3. Purpose of equity acquisition Participation in management - Method of funding the acquisition Own funds (KRW): 9,999,995,536 Borrowed funds (KRW): - Lender: - Borrowing period: - ~ - Collateral details: - - Plan for appointment/dismissal of executives after the acquisition At the extraordinary general meeting of shareholders scheduled to be held on 2026-08-13, 2 in-house directors, 1 independent director, and 1 auditor are scheduled to be appointed subject to approval.

4. Change date: 2026-08-12

5. Change confirmation date: 2026-08-12

6. Other matters for reference in investment decisions - The "ownership ratio" in "1. Details of change" above is based on total shares issued of 6,543,786 shares, including the third-party placement rights offering shares. - The 1,659,856 new shares and 892,857 existing shares issued pursuant to this rights offering (third-party placement) will be held in mandatory custody for one year pursuant to the KOSDAQ market listing regulations and private placement rules.

* Related disclosures 2026-07-31 Report on status of stock ownership by executives and major shareholders 2026-07-31 Report on bulk ownership status of shares, etc. (general) 2026-07-30 Notice convening general meeting of shareholders 2026-07-29 Contract regarding change of management rights, etc. 2026-07-29 Rights offering decision (third-party placement) 2026-07-29 Resolution to convene general meeting of shareholders (extraordinary general meeting)

[Details of change] Name (corporation/association/other entity name) / Relationship / Before change: Shares (shares), Ownership ratio (%) / After change: Shares (shares), Ownership ratio (%) / Remarks Satoshi Holdings Co., Ltd.: Largest shareholder before change; before: 1,000,000 shares, 20.47%; after: 1,000,000 shares, 15.28%; remarks: - Prime Value Investment Association: Largest shareholder after change; before: 892,957 shares, 18.28%; after: 2,552,713 shares, 39.01%; remarks: -

[Matters related to the largest shareholder after the change (where it is an association)] 1. Basic information of the association Legal basis for formation (establishment): Civil Act Name: Prime Value Investment Association Registration number: 896-80-03939 Number of investors (persons): 2 Total association assets (KRW): 10,001,001,000 Representative member: Name Jang Tae-ho; Contribution share (%): 0 Managing member: Name Jang Tae-ho; Contribution share (%): 0 Largest contributor: Name Jang Tae-ho; Contribution share (%): 65

- Status and equity information of major contributors (10% or more) Category / Name / Equity ratio (%) Largest contributor: Jang Tae-ho; 65 Major contributor: Daeyang Metal Co., Ltd.; 35

- Executive career of the representative member, managing member, largest contributor, and major contributors Name: Jang Tae-ho; Company name: -; Listing status: -; Delisting date: -; Position: -; Date joined: -; Date left: -; Remarks: Representative member and largest contributor Name: Daeyang Metal Co., Ltd.; Company name: Daeyang Metal Co., Ltd.; Listing status: Listed (KOSPI); Delisting date: -; Position: -; Date joined: -; Date left: -; Remarks: Major contributor

- History as largest shareholder of a listed company for the representative member, managing member, largest contributor, and major contributors Name: Jang Tae-ho; Company name: -; Listing status: -; Delisting date: -; Period as largest shareholder: - to -; Remarks: Representative member and largest contributor Name: Daeyang Metal Co., Ltd.; Company name: Blue Industrial Development Co., Ltd.; Listing status: Listed (KOSPI); Delisting date: -; Period as largest shareholder: 2022-11-11 to 2024-11-21; Remarks: Major contributor

2. Major financial matters, etc. (Unit: KRW million) Applicable fiscal year: 2026; Settlement period: December Total assets: 10,001 Capital: 10,001 Total liabilities: - Revenue: - Total equity: 10,001 Net income (loss): - External auditor: - Audit opinion: -

3. Relationship with the listed company concerned - Relationship between the listed company and the largest shareholder (association): Major shareholder - Relationship between the listed company's executives, etc. and the largest shareholder (association) Name / Relationship with the largest shareholder (association): - / -

4. Transaction history between the listed company concerned and the largest shareholder (association) over the last 3 years (excluding ordinary transactions) Category: Transaction details Current year: - Prior year: - Year before that: -