MESSAGE FROM ABOUT SUSTAINABILITY AT PRODUCTS WITH ENVIRONMENTAL SOCIAL GOVERNANCE AND GRI, SASB, AND TCFD OUR CEO HUBBELL HUBBELL IMPACT STEWARDSHIP RESPONSIBILITY ACCOUNTABILITY DISCLOSURES GRI STANDARD DISCLOSURE EXPLANATION Waste and Recycling Inventory Footnotes: 1. Hubbell r eports all waste and recycling from our wholly owned companies’ leased and owned manufacturing, warehouse, and o昀케ce facilities worldwide. The waste generated and recycled of consolidated joint operations are included pro rata, based on our 50% interest. Waste and recycling for select sites where Hubbell does not pay the service bill (i.e., primarily tenant-shared o昀케ce space) are excluded from the reported waste generated and recycled. Estimates are used where primary data is not available. Waste generated and waste recycled are reported in US tons (ton). 2. Hubbell es tablished a threshold for signi昀椀cance of 5% or greater in Hubbell’s total base-year waste and recycling for the company’s rebaseline policy. While our new environmental goals reference a 2022 baseline, we applied this policy to our 2019-2021 historical data to help us track Hubbell’s environmental reduction progress over time. In October 2021, Hubbell initiated the sale of its Commercial and Industrial Lighting business, which was completed in 2022. This divestment triggered our rebaseline policy and our stated historical data re昀氀ects this. In addition, Hubbell grew its business with acquisitions in the second half of 2022 - PCX Holdings LLC, Ripley Tools, and REF Automation. These acquisitions did not trigger our rebaseline policy for historical data, however these sites are included in our inventory for 2022 onward. 3. Hazardous waste data represents waste deemed hazardous by region-speci昀椀c de昀椀nitions. PRODUCTS WITH IMPACT GRI 3: Material 3-3 Management of material topics From ideation to production, we are committed to developing best-in-class products that meet our customers’ business and sustainability Topics 2021 objectives. Hubbell’s New Product Development (NPD) e昀昀orts are centered on developing solutions that enable our customers to solve critical infrastructure problems. In addition to continuing to pursue NPD innovations in our existing product lines, Hubbell has recently accelerated our e昀昀orts to invest in higher value innovation opportunities across our portfolio. These investments are primarily focused in six key strategic growth verticals: utility transmission and distribution (T&D) infrastructure, utility distribution automation, electrical transportation, renewables, data centers, and communications. Increasing our NPD investment in these verticals supports our strategy to accelerate organic growth across clean energy megatrends in grid modernization and electri昀椀cation. In addition, our NPD e昀昀orts are conducted through a comprehensive stage-gate process, which includes a stage evaluating environmental performance. No applicable GRI Custom disclosure: Total sales Hubbell’s Products with Impact support the transition to an energy e昀케cient and low-carbon economy through four impact categories: grid Topic Standard associated with Products with Impact modernization and hardening, resource e昀케ciency, renewable energy, and electri昀椀cation. Our Products with Impact represented approximately 63% of our total sales in 2022. This calculation includes all sales from electrical utility T&D components and utility communications and controls, as well as products sold directly into solar and wind applications. It also includes products that support grid modernization and communications applications such as 5G/昀椀ber/broadband access and data centers. This calculation excludes sales from products sold into oil and gas markets, which enhance the safety of those applications. It also excludes sales from our broader portfolio of electrical products sold into various industrial, non-residential, and residential applications. • HUS enables the grid t o conduct, communicate, and control energy across utility applications. Our critical utility T&D components harden critical infrastructure, enabling the grid to reliably transmit and distribute energy. In addition, HUS' utility communications and controls technologies provide data collection, analysis, and control capabilities that enable the management of energy T&D with consumption. By making the grid smarter and more 昀氀exible, our communications and controls solutions facilitate the integration of renewables and the electri昀椀cation of everything. • HES pr ovides critical components that allow operators of buildings, factories, and other industrial infrastructure to connect, protect, wire, and manage power reliably and e昀케ciently. HES solutions increase the energy e昀케ciency of buildings and infrastructure, as well as support electri昀椀cation of sectors including transportation and manufacturing. Moreover, while our decarbonization-related products are salient to our business and our industry, we believe that our solutions also generate positive social and environmental impacts beyond our Products with Impact categories. These bene昀椀ts include enhancing safety, resource e昀케ciency, hardening of infrastructure, explosion prevention, and rural broadband access. For example, Hubbell Gas Utility Solutions o昀昀ers connectors and valves that both promote resource e昀케ciency and prevent gas leaks and spills. 71