P5. Promoting a safe and healthy workplace Occupational Health and Safety (OHS) and Environmental Health and Safety (EHS) Enphase’s Occupational Health and Safety (OHS) program has implemented a culture of safety compliance, framed on identifying hazards, minimizing workplace risks, and promoting continuous improvement in safety performance. The U.S. Department of Labor’s Occupational Health & Safety Administration (OSHA) guidelines are the building blocks for our OHS program in the U.S. and provide signi昀椀cant in昀氀uence over the development of our global OHS systems. The OHS program either complies with or exceeds the occupational health and safety regulations in the countries where we operate. “In 2023, Enphase had zero The OHS program goes through a continuous monitoring and evaluation process. Our reportable notices of health and OHS policy provides strategic direction, guiding principles, and relevant responsibilities for safety violations worldwide.” management, employees, and the Enphase Environmental Health and Safety (EHS) team. Our EHS team is led by a safety professional trained and certi昀椀ed by the Board of Certi昀椀ed Safety Professionals (BCSP). In 2023, Enphase had zero reportable notices of health and safety violations worldwide. Workplace accident and injury rates Enphase uses OSHA de昀椀nitions to calculate recordable incidents, lost time, and restricted- day injuries. These de昀椀nitions are also implemented globally for data gathering and analysis. In 2023, we expanded the accident and injury reporting program to cover operations in New Zealand and India in addition to those in North America. As a result of these e昀昀orts, our recordable incidents, lost-time, and restricted-day injuries are below industry averages published by the U.S. Bureau of Labor Statistics. Table 9: Accident and injury rates* Total Lost Time Days Away, Recordable Incident Rate Restricted, Fatalities** Incident Rate (LTIR) Transfer (TRIR) (DART) Enphase Energy 0.23 0.13 0.13 0 *** Industry Benchmark 1.10 0.30 0.50 No data *North America, New Zealand, and India operations **Includes Enphase and contract employees ***NAICS code 334413 – Semiconductor and Related Device Manufacturing 52