MESSAGE FROM ABOUT SUSTAINABILITY AT PRODUCTS WITH ENVIRONMENTAL SOCIAL GOVERNANCE AND GRI, SASB, AND TCFD OUR CEO HUBBELL HUBBELL IMPACT STEWARDSHIP RESPONSIBILITY ACCOUNTABILITY DISCLOSURES 2023 TCFD CONTENT INDEX Hubbell considered the TCFD recommendations when creating this report. The index below provides information responsive to TCFD disclosures categories. DISCLOSURE FOCUS AREA DISCLOSURE DESCRIPTION EXPLANATION GOVERNANCE Disclose the organization’s a) Describe the board’s oversight of Hubbell’s Board of Directors provides overall risk oversight focusing on the most signi昀椀cant risks facing our company. governance around climate-related risks and opportunities The Board annually reviews the company’s risk pro昀椀le and assesses speci昀椀c key business or functional risk areas during climate-related risks and Board meetings throughout the year. The Board also oversees the risk management processes that are implemented by opportunities. our executives to determine whether these processes are functioning as intended and are consistent with our business and strategy as well as best practices. This includes oversight of ESG-related risks, such as climate change. Moreover, the Board receives periodic updates on environment, health, and safety and sustainability matters, including corporate- level climate-related goals on air emissions and water usage, at least twice per year. In the course of these discussions, a variety of topics may arise ranging from reducing the environmental impact from operations and products to considerations that may a昀昀ect merger and acquisition plans. In addition, the Board’s NCGC oversees the development and administration of Hubbell’s sustainability/ESG program. This includes overseeing our ESG strategy, evaluating progress on ESG performance, and supporting the integration of the management of climate-related issues (e.g., risks and opportunities) into our strategy and outlook. b) Describe management’s role in assessing At the executive level, our ESG Committee has responsibility for sustainability matters globally, including our and managing climate-related risks and sustainability strategy, initiatives, target-setting, performance, and reporting. The ESG Committee also considers opportunities climate-related risks and action plans and oversees alignment between our sustainability e昀昀orts and our overarching business objectives. Hubbell’s SVP, General Counsel and Secretary and CCO are the executive sponsors for the ESG Committee, and our Sustainability & ESG Manager serves as the ESG Committee lead. The ESG Committee meets at least four times per year, provides status updates to the NCGC, the Board, and Chief Executive O昀케cer Council (i.e., Hubbell’s cross-functional senior executive management team), the Chairman, President and CEO, and engages with other functional leaders throughout Hubbell who champion our ESG initiatives across the company. The ESG Committee is supported by cross-functional leaders that interact in a matrixed fashion. On a day-to-day basis, our Sustainability & ESG Manager takes the lead on coordinating the performance of our businesses on environmental and climate-related issues, together with the CCO and SVP, General Counsel and Secretary. This includes measuring our GHG emissions, supporting the establishment of our climate change targets (i.e., GHG goals), and monitoring our environmental impacts. Our SVP, General Counsel and Secretary, CCO, and Sustainability & ESG Manager are responsible for integrating the plans and processes arising from our operations and our supply chain into our overall sustainability program that also includes customer, employee, product technology, and other initiatives from across the company. In addition, our Chief Technology O昀케cer supports the development of products that enable sustainability- related bene昀椀ts for our customers, such as those that o昀昀er climate-related opportunities including energy e昀케ciency and renewable/clean energy technologies. Moreover, our Vice President, Investor Relations, provides support with our ESG disclosures for investors, customers, and other stakeholders, including climate change-related issues. 82