Terna, a transmission system operator based in Rome, agreed to acquire a 90% stake in Brugg Kabel, an operator in the underground-cable sector, designing, developing, creating, installing and maintaining electrical cables of all voltage levels and accessories for high-voltage cables, for €13m. "Acquisition of Brugg Kabel, will allow Terna to acquire a centre of excellence for research, development and testing of one of the core technologies for the TSO, such as underground cables," Terna.