HUBBELL INC

To the Board of Directors and Shareholders of Hubbell Incorporated

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the accompanying consolidated balance sheets of Hubbell Incorporated and its subsidiaries (the “Company”) as of December 31, 2024 and 2023, and the related consolidated statements of income, of comprehensive income, of changes in equity and of cash flows for each of the three years in the period ended December 31, 2024, including the related notes and schedule of valuation and qualifying accounts and reserves for each of the three years in the period ended December 31, 2024 appearing under Item 15 (collectively referred to as the “consolidated financial statements”). We also have audited the Company’s internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2024 and 2023, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2024 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control - Integrated Framework (2013) issued by the COSO.

Basis for Opinions

The Company’s management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management’s Annual Report on Internal Control over Financial Reporting appearing under Item 8. Our responsibility is to express opinions on the Company’s consolidated financial statements and on the Company’s internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.

Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Critical Audit Matters

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Goodwill Impairment Assessment – Interim Quantitative Goodwill Impairment Assessment for a Certain Reporting Unit

As described in Notes 1 and 7 to the consolidated financial statements, the Company’s consolidated goodwill balance was $2,500.8 million as of December 31, 2024, of which a portion relates to a certain reporting unit. Management performs the goodwill impairment testing as of April 1st of each year, unless circumstances dictate the need for more frequent assessments. In July 2024, the Company internally reorganized certain businesses within the Electrical Solutions segment which resulted in a change in the Company’s reporting units within this segment. As a result of the change in reporting units, management performed an interim goodwill impairment assessment during the third quarter of 2024, for the reporting units within the Electrical Solutions segment. The Company elected to utilize the quantitative goodwill impairment testing process, as permitted in the accounting guidance, by comparing the estimated fair value of the reporting units to their carrying values. The impairment testing resulted in implied fair values for each reporting unit that exceeded such reporting unit’s carrying value, including goodwill. Management uses internal discounted cash flow models to estimate fair value. Significant judgment is required by management to estimate the fair value of reporting units including estimating future cash flows, determining appropriate discount rates and other assumptions, including assumptions about secular economic and market conditions, future sales growth, gross margin, operating margin, terminal growth rate, and the application of an appropriate discount rate.

The principal considerations for our determination that performing procedures relating to the interim quantitative goodwill impairment assessment for a certain reporting unit is a critical audit matter are (i) the significant judgment by management when developing the fair value estimate of a certain reporting unit and (ii) a high degree of auditor judgment, subjectivity, and effort in performing procedures and evaluating management’s significant assumptions related to future sales growth, gross margin, and operating margin.

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to management’s interim quantitative goodwill impairment assessment, including controls over developing the fair value estimate of a certain reporting unit. These procedures also included, among others (i) testing management’s process for developing the fair value estimate of a certain reporting unit; (ii) evaluating the appropriateness of the discounted cash flow model; (iii) testing the completeness and accuracy of the underlying data used in the discounted cash flow model; and (iv) evaluating the reasonableness of the significant assumptions used by management related to future sales growth, gross margin, and operating margin. Evaluating management’s assumptions related to future sales growth, gross margin, and operating margin involved evaluating whether the significant assumptions used by management were reasonable considering (i) the current and past performance of a certain reporting unit; (ii) the consistency with external market and industry data; and (iii) whether these assumptions were consistent with evidence obtained in other areas of the audit.

/s/PricewaterhouseCoopers LLP

Hartford, Connecticut

February 13, 2025

We have served as the Company’s auditor since at least 1961. We have not been able to determine the specific year we began serving as auditor of the Company.