REN - Redes Energéticas Nacionais operates in two major business areas: • The transmission in very high voltage electricity and overall technical management of the National Electricity System; • The transport of high-pressure natural gas and overall technical management of the National Natural Gas System, guaranteeing the reception, storage and regasification of LNG and underground storage of natural gas. As a result of the country's commitment to renewable energy, the Portuguese government granted REN the concession to operate a pilot area for generating electricity from sea waves to Enondas - Energia das Ondas. S.A., which is 100% owned by REN. REN also operates in the telecommunications business via RENTELECOM, which includes a range of services, such as infrastructure, managed services and consultancy. The internationalisation of REN's operations is a business that is taking its first steps, and received a new impulse with the entry of strategic international partners (State Grid and Oman Oil) in to the company capital. REN meets all the required quality and safety criteria and seeks to be one of the most efficient European energy transmission system operators, while creating value for its shareholders within a framework of sustainable development.