The long-awaited tungsten cathode is finally nearing completion in a Chinese factory. According to the latest reports by California-based Tungsten Heavy Powder(THP), which is performing the work in China, machining will be complete within a few weeks and delivery to LPPFusion should occur by mid-February. The 99.95% pure tungsten piece has been in the machining process for nearly two months. Because pure tungsten is as brittle as ceramic and liable to cracking, the part must be removed from machining frequently and heat-treated to relieve internal stress.