General Fusion’s LM26 magnetized target fusion machine reached 0.72 keV plasma heating (8.4 million °C), tripling electron temperature and boosting density tenfold during compression. Spring Valley Acquisition Corp. III set a July 6 shareholder vote to approve its merger and rename as General Fusion Group Ltd.
General Fusion’s LM26 achieved plasma heating to approximately 8.4 million °C (0.72 keV), a threefold increase in electron temperature during mechanical compression. Plasma density and poloidal magnetic field both rose tenfold, while stable compression with no significant lithium contamination and increased neutron yield validated the company’s practical MTF approach.
Spring Valley Acquisition Corp. III scheduled an extraordinary meeting for July 6, 2026 to vote on its business combination with General Fusion. Upon closing, the combined company will be renamed General Fusion Group Ltd. and expected to trade on Nasdaq under symbols GFUZ and GFUZW, subject to regulatory approvals.
Following peer review of these preliminary findings, General Fusion will optimize LM26 toward its next target of 1 keV electron temperature. Planned machine upgrades aim to increase starting plasma parameters and enable higher densities and temperatures, advancing the path to commercial fusion energy.
