CHANTILLY, Va.–(BUSINESS WIRE)—- $AMTM #AdvancedEnergy–Great British Energy – Nuclear (GBE-N) has awarded a $406 million (£300 million) contract to a joint venture between Amentum (NYSE: AMTM) and Cavendish Nuclear to serve as the owner’s engineer for the UK’s groundbreaking small modular reactor (SMR) program. This long-term agreement, with a maximum duration of 14 years, will support the deployment of Rolls-Royce SMR’s innovative reactor technology at the Wylfa site in North Wales. The contract represents a signif