Green Critical Minerals (ASX:GCM) said certain potential customers had requested confirmation of the thermal expansion performance of very high-density graphite and for the provision of sample material to support next-stage computer modelling, according to a Wednesday Australian bourse filing.

The firm said it was engaging with potential customers across Asia, Australia, Europe, and North America, covering sectors such as data center providers, semiconductor manufacturers, machine shops, and thermal engineering solution providers.

Test results show that very high-density graphite significantly outperforms conventional heat sink metals of copper and aluminum in-plane and is also superior out of plane.