Australian Mines (ASX:AUZ) said additional metal hydride samples have been submitted to the National Laboratory of the Rockies for independent testing by the US Department of Energy national laboratory team, according to a Monday Australian bourse filing.

The company said the submission is part of its strategy to advance its proprietary solid-state hydrogen storage technology toward potential commercial applications, with current work focused on optimization of follow-on metal hydride formulations and independent assessment of material performance characteristics, among other areas.

The company added that metal hydride-based hydrogen storage may have potential applications across a range of hydrogen storage and energy markets, including backup power systems utilizing solid oxide fuel cell (SOFC) technology and data centers and AI-related energy infrastructure.

The company's shares shed about 4% in recent Monday trade.