Company: HYNLY
Filing Date: 2025-02-20
Form Type: 40-F
Source: 0001712356-25-000012
Chunk: 3

Company: Hydro One Ltd
Filing Date: 2025-02-20
Form: 40-F
Chunk 3
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 to materially affect, the operation of the Registrant’s internal control over financial reporting.

### IDENTIFICATION OF THE AUDIT COMMITTEE
The Registrant has a separately-designated standing audit committee established in accordance with Section 3(a)(58)(A) of the Exchange Act (the “Audit Committee”). The Audit Committee comprises Stacey Mowbray (Chair), David Hay, Mitch Panciuk, Mark Podlasly, and Helga Reidel. The board of directors of the Registrant has determined that each member of the Audit Committee is “independent” as defined in the Exchange Act and the New York Stock Exchange’s listing standards applicable to the Registrant. Each of the Audit Committee members has an understanding of the accounting principles used to prepare the Registrant’s financial statements and varied experience as to the general application of such accounting principles, as well as an understanding of the internal controls and procedures necessary for financial reporting.

### AUDIT COMMITTEE FINANCIAL EXPERT
The board of directors of the Registrant has determined that it has at least one audit committee financial expert serving on its audit committee. Stacey Mowbray, David Hay, Mitch Panciuk, Mark Podlasly, and Helga Reidel have each been designated as an audit committee financial expert and are each independent, as such term is defined in the New York Stock Exchange’s listing standards applicable to the Registrant. The Commission has indicated that the designation or identification of an audit committee financial expert does not deem that audit committee financial expert an “expert” for any purpose, impose any duties, obligations or liability on such audit committee financial expert that are greater than those imposed on members of the audit committee and board of directors who do not carry this designation or identification, or affect the duties, obligations or liability of any other member of the audit committee or board of directors.

### AUDIT COMMITTEE PRE-APPROVAL POLICIES AND PROCEDURES
The charter of the Audit Committee requires that the Audit Committee review and approve all policies and procedures for the pre-approval of services to be rendered by external auditors. All permissible non-audit services to be provided to the Registrant or any of its affiliates by external auditors or any of their affiliates that are not covered by pre-approval policies and procedures approved by the Audit Committee, are subject to pre-approval by the Audit Committee. During the fiscal year ended December 31, 2024, the waiver of pre-approval provisions set forth in the applicable rules of the Commission was not utilized