The companies signed the MoU at the Euronaval trade show in Paris on 4 November. It covers integrating Kongsberg’s HUGIN unmanned underwater vehicles and advanced sonar technologies into conventional submarines, as well as joint innovation on future designs, modernisation programmes and new production batches. Kongsberg will contribute autonomous and sonar systems, and Navantia will lead integration into the submarines, in line with the operational standards of the Spanish Navy and other NATO navies.