Online journal TeleSintese reports that Brazilian state-controlled telecoms group Telecomunicacoes Brasileiras (Telebras) has signed a fibre-optic network sharing agreement with local carrier Cemig Telecom, to expand the eastern ring of the country’s National Broadband Programme (PNBL) to the cities Rio de Janeiro, Campinas and Belo Horizonte. It is understood that the partnership between Telebras and Cemig Telecom, which is owned by Companhia Energetica de Minas Gerais, may be expanded in the future and will also include fibre infrastructure in Minas Gerais state. The state-backed PNBL carrier recently inked a deal with Algar Telecom for urban coverage in Sao Paulo and its environs, and is also using the telecoms infrastructure of Furnas, a unit of Group Eletrobras and Petrobras, to help meet its southeast ring requirements.