[Commonwealth Fusion Systems in PR Newswire] US Department of Energy validates Commonwealth Fusion Systems’ successful completion of magnet technology performance test and Energy Secretary Chris Wright visits SPARC, the world’s most advanced next-generation energy technology project

DEVENS, Mass., Sept. 30, 2025 /PRNewswire/ — Commonwealth Fusion Systems (CFS), the largest and leading private fusion company, announced that the results of rigorous performance tests of its toroidal field (TF) magnet, a key component at the heart of the company’s SPARC fusion power machine, have been successfully validated by an independent panel of reviewers under the U.S. Department of Energy’s Milestone-Based Fusion Development Program.