SCHEDULE: Mizuho Financial Group Appoints Attorney for SEC Filings

Mizuho Financial Group, Inc. has granted power of attorney to Takahiro Katsura for executing and filing Form 13G with the SEC.

Summary

• Mizuho Financial Group, Inc. (the Company) has issued a Limited Power of Attorney to Takahiro Katsura, Managing Director, Head of Global Branches & Subsidiaries Coordination Office, Global Corporate Function Coordination Department.
• This authorization allows Mr. Katsura to execute and file Form 13G, including any amendments, restatements, supplements, or exhibits, with the U.S. Securities and Exchange Commission (SEC) on behalf of the Company and its subsidiaries: Mizuho Bank, Ltd., Mizuho Americas LLC, and Mizuho Securities USA LLC.
• The power of attorney is granted for actions deemed necessary or desirable to complete and file these forms, and any other actions beneficial, in the best interest of, or legally required for the undersigned.
• The filing also lists the principal business offices and classifications of Mizuho Bank, Ltd., Mizuho Americas LLC, and Mizuho Securities USA LLC.
• Mizuho Financial Group, Inc. reports beneficial ownership of 964,587 shares of Common Shares of Lake Superior Acquisition Corp., representing 8.1% of the class, as of March 31, 2026.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral filing, primarily administrative in nature, confirming existing reporting procedures and a significant but not controlling stake in another entity.

Positives

• Clear delegation of authority for SEC filings ensures compliance and timely reporting.
• Mizuho Financial Group, Inc. maintains a significant stake (8.1%) in Lake Superior Acquisition Corp., indicating continued investment interest.

Risks

• The power of attorney is subject to revocation by the undersigned in writing.
• The filing acknowledges that the appointed attorney-in-fact is not assuming the undersigned's responsibilities or liability for compliance with Section 13 of the Exchange Act.

Future Outlook

The power of attorney remains in effect until the undersigned is no longer required to file Forms 13G with respect to the Company's holdings of and transactions in securities, unless earlier revoked.

Management Comments

• "The undersigned hereby grants to such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever required, necessary or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-facts substitute, shall lawfully do or cause to be done by virtue of this Limited Power of Attorney and the rights and powers herein granted."
• "The undersigned acknowledges that the foregoing attorney-in-fact, in serving in such capacity at the request and on the behalf of the undersigned, is not assuming any of the undersigneds responsibilities to comply with, or any liability for the failure to comply with, any provision of Section 13 of the Exchange Act."

Industry Context

StockSavvy.ai notes that the issuance of a power of attorney for SEC filings, particularly Form 13G, is a standard procedural step for large financial institutions like Mizuho Financial Group to manage their reporting obligations efficiently, especially when dealing with significant equity stakes in other companies.

Stakeholder Impact

• Shareholders of Mizuho Financial Group, Inc.: The filing ensures compliance with regulatory requirements, which is crucial for maintaining investor confidence and avoiding penalties.
• Regulators (SEC): The filing facilitates the accurate and timely disclosure of beneficial ownership information as required by the Securities Exchange Act of 1934.
• Lake Superior Acquisition Corp.: The filing confirms Mizuho Financial Group's significant ownership stake, which could be relevant for future corporate actions or strategic decisions.

Next Steps

• Takahiro Katsura will execute and file Form 13G and any necessary amendments for Mizuho Financial Group, Inc. and its subsidiaries.
• The power of attorney will remain in effect until no longer required or until revoked.

Key Dates

Keywords

Mizuho Financial Group, SEC Filing, Form 13G, Power of Attorney, Lake Superior Acquisition Corp., Beneficial Ownership, Securities Exchange Act