2020 Sustainability Report WORK SITE MANAGEMENT AND OVERSIGHT 301-1 301-2 403-9 During the construction of the infrastructure, the Group entrusts the works to third-party companies, mainly assigning Group companies the role of technical party in addition to, depending on the requirements and specific type of contract, coordination and/or supervision of the works, with the duty of directly performing any agreedupon monitoring activities before, during and after the works, identifying any critical issues and suitable corrective measures.