MESSAGE FROM ABOUT SUSTAINABILITY AT PRODUCTS WITH ENVIRONMENTAL SOCIAL GOVERNANCE AND GRI, SASB, AND TCFD OUR CEO HUBBELL HUBBELL IMPACT STEWARDSHIP RESPONSIBILITY ACCOUNTABILITY DISCLOSURES DISCLOSURE TOPIC DISCLOSURE # ACCOUNTING METRIC EXPLANATION Materials Sourcing RT-EE-440a.1 Description of the management At Hubbell, we are committed to socially responsible sourcing of the materials included in our products. Our of risks associated with the use of Con昀氀ict Minerals Policy, which re昀氀ects the requirements of the Dodd-Frank Wall Street Reform and Consumer critical materials Protection Act (the Act), aims to prevent the use of con昀氀ict minerals that directly or indirectly 昀椀nance or bene昀椀t armed groups in The Democratic Republic of the Congo or adjoining countries. The Act requires our company to perform due diligence with respect to the sourcing of con昀氀ict minerals and to report annually on our potential use of con昀氀ict minerals and origin of such minerals. Our suppliers are responsible for following our Con昀氀ict Minerals Policy and the con昀氀ict minerals guidelines in our Third-Party Code of Business Conduct and Ethics and for passing these same requirements on to their suppliers. We also screen and audit our suppliers both onsite and virtually to assess potential quality, 昀椀nancial, security, social, and environmental issues or compliance risks, including risks related to the use of critical materials, con昀氀ict minerals, or human rights violations. Business Ethics RT-EE-510a.1 Description of policies and practices Our Board of Directors, Chairman, President and CEO, and SVP, General Counsel and Corporate Secretary for prevention of: (1) corruption and oversee the execution of ethical conduct. Our Code of Business Conduct and Ethics and other ethics and bribery and (2) anti-competitive compliance policies serve as guideposts for our behavior and management practices. The Code, which is behavior evaluated and updated on a regular basis, provides the framework for our conduct, our interactions with others, and our decision-making. It addresses our standards and policies for various matters, including con昀氀icts of interest, anti-corruption, and compliance with applicable law. The Code applies to our Directors, employees, and third parties, and it is the foundation on which our ethics and compliance policies are built. The Code is shared with all employees as part of our new hire onboarding process, and all employees and Directors are required to certify to the Code annually. We also provide monthly training for employees on tenets of the Code. RT-EE-510a.2 Total amount of monetary losses as a We did not experience any monetary losses as a result of legal proceedings associated with bribery or corruption result of legal proceedings associated in 2022. with bribery or corruption 80