Proxima Fusion chief says companies moving to China over lack of cheap nuclear power Proxima Fusion in Munich is partnering with Japan's Fujikura on a possible manufacturing facility in the German state of Lower Saxony to produce a critical fusion reactor component. (Proxima Fusion) TOKYO -- Europe's best-funded nuclear fusion start-up, backed by Google, is seeking to deepen ties with Japanese suppliers as Germany looks to build a domestic supply chain for the commercially unproven technology and revive its struggling industrial base.