Internal Audit Structure

Basic approach

Internal audit refers to a series of activities, ranging from the objective and comprehensive evaluation of the effectiveness and appropriateness of each process relating to governance, risk management, and control to the provision of recommendations and corrective guidance, etc. toward the resolution of problems, under the supervision of the Board of Directors, with organizational independence ensured.

Through this series of activities, internal audits assist the Board of Directors of each of our group companies to fulfill their role of supervising management efficiently and effectively. In line with the Basic Policy for Internal Audit established by Mizuho Financial Group, our principal banking subsidiaries and other core group companies conduct internal audits, which include the internal auditing of their respective subsidiaries.

In addition, with respect to the management of risks applicable across the Mizuho group, we coordinate internal audits throughout the group to assess the risk management status of the group as a whole.

Internal audit management structure

Mizuho Financial Group (holding company)

Our Internal Audit Group is independent from other departments and business processes at Mizuho Financial Group.

The Internal Audit Group conducts internal audits of Mizuho Financial Group, and centrally monitors and manages the status of internal audits at our core group companies, by verifying the internal audits and internal control structure at each company based on reports submitted by those companies.

The Group Chief Audit Executive (Group CAE) reports functionally to the Board of Directors and the Audit Committee on important matters related to internal audits.
Also, as the person in charge of internal audit, the Group CAE reports administratively on the status of internal audit operation management to the Group CEO directly or through the Internal Audit Committee.

Mizuho Bank and Mizuho Trust & Banking

The Internal Audit Groups at both Mizuho Bank and Mizuho Trust & Banking are independent from their respective other departments and business processes.

The progress and results of individual audits and plans are reported to their respective Audit & Supervisory Committees, and their respective Internal Audit Groups respond to requests for inspections and receive specific instructions from their respective Audit & Supervisory Committees.

In addition, they have also both established Internal Audit Committees that discuss and make decisions on all important matters regarding their respective internal audits.

Both banks have established internal audit departments to conduct internal audits at their respective business offices in and outside Japan, head office departments, and group companies. Specifically, the internal audit departments assess the suitability and effectiveness of business activities associated with compliance and risk management.

Other core group companies

Other core group companies have also established effective and efficient internal audit structures adapted to the characteristics of their respective businesses.

Internal audit management structure

(As of June 30, 2024)