Metallium (ASX:MTM) completed a 12-hour continuous flash joule heating (FJH) reactor campaign at its Gator Point Technology Campus in Texas, validating reactor subsystems, automation architecture, and operating procedures ahead of planned parallel reactor deployment, according to a Tuesday filing with the Australian bourse.

The campaign also confirmed the company's ability to process platinum and palladium-rich materials, the filing said.

The company aims to transition to sustained multi-reactor deployment and broader throughput expansion activities from long-term single-reactor operations, per the filing.