Rolls-Royce SMR announced the appointment of two strategic suppliers of key nuclear island components on May 27, 2026 — establishing what the company described as "the strongest possible team to enable successful delivery" of the Wylfa SMR programme. The nuclear island encompasses the reactor pressure vessel, primary circuit, steam generators, and other safety-critical systems. The supplier appointments are the first formal supply chain commitments made following the £359 million Stage 1 Technical Partner Contract awarded by GBE-N and published May 8, 2026. Full supply chain details are expected to be disclosed as the mobilisation phase advances.