Nexa has adopted an Occupational Health and Safety Management System (OH&S) that has been in place for several years, applicable to all of its operations and offices, without exception. This system is guided by corporate guidelines and compliance with the legal requirements of the countries where it operates, such as Brazil and Peru, including the Consolidated Labor Laws (CLT) and Regulatory Standards such as NR-4, NR-5, and NR-22, as well as Law No. 29,783/2011 and Supreme Decrees No. 05-2012 and 24-2016. The OHS area’s operations are organized at the strategic, tactical, and operational levels, with guidelines defined at the corporate level and rolled out to the units, encompassing the development of safety culture programs, definition of responsibilities, risk management, and accident prevention. Safety is treated as a core value of the organization, reinforcing the commitment to the protection of all workers and regulatory compliance.

The system is supported by key elements such as the definition of strategy, objectives, and targets aligned with ESG, strengthening leadership and a culture of prevention, compliance with legal requirements, risk management at all levels, continuous training, communication and employee engagement, as well as standardized operational controls. It also includes contractor management, emergency response plans, periodic audits, performance monitoring through indicators, and incident management focused on organizational learning. These practices are implemented through training, inspections, audits, incident investigations, and a continuous pursuit of innovation and technical solutions, ensuring continuous improvement in health and safety performance and the safe conduct of operations.