Green Critical Minerals VHD graphite heat sink outperforms benchmarks in modelling

• Finite Element modelling on VHD Technology graphite heat sink demonstrates strong thermal diffusion, rapidly dispersing heat
• VHD heat sink can accommodate 300-400W at 70-85 degrees Celsius compared to 200-250W in traditional models
• Results indicate suitability for advanced applications like data centres

Special Report: As demand for computational power from data centres explodes, Green Critical Minerals’ VHD Technology graphite heat sink is outperforming traditional materials.

GCM commissioned world-leading expert Professor Qing Li, a professor and ARC Future Fellow at the University of Sydney Centre for Advanced Material Technology, to conduct Finite Element modelling on its VHD Technology heat sink, comparing the heat dissipation performance against traditional materials.

Green Critical Minerals’ (ASX:GCM) heat sink almost doubled the power load capacity of conventional heat sink materials, maintaining microchip temperatures at 70-85 degrees Celsius at power loads of 300 to 400 watts.

Conventional materials are generally capable of maintaining those temperatures at about half that power load, topping out at the 200 to 250W range.

The tests also revealed “exceptional” thermal diffusivity, rapidly dispersing heat from the microchip base.

These results are promising when considering data centres are leveraging increasingly advanced chip infrastructures demanding higher power inputs, requiring 300W or more.

GCM’s heat sink appears to be capable of accommodating those requirements and more, positioning it well for the high-performance microchip sector.

Ensuring operational stability

Green Critical Minerals managing director Clinton Booth said the results were a validation of GCM’s innovative VHD graphite technology, demonstrating the advantages the heat sinks could offer emerging sectors.

“Effective thermal management is critical for ensuring operational stability and performance continuity in such environments, in reducing data centre capital and operating costs, and in supporting sustainable data centre development,” Booth explained.

“Our VHD heat sinks deliver industry-leading results, consistently outperforming traditional materials such as conventional graphite, copper and aluminium products.”

Booth said GCM was moving at a rapid pace to ramp-up customer engagement discussions, having received strong interest from a diverse and growing global customer pipeline.

“We have a standout and in-demand product that is needed across several large and growing markets and look forward to executing on a busy work program, executing our first sales agreements and generating first revenue in the first half of 2026,” he said.

Management sees strong potential to apply its proprietary VHD technology to other thermal products, like cold plates used in liquid cooling solutions.

The company intends to pursue those additional applications through its collaboration with GreenSquareDC, announced in April 2025.

BP Castrol global president of thermal management Peter Huang estimates about 40% of a data centre’s total energy demands come from cooling requirements.

“Increased workloads and power densities will only grow as AI adoption continues at pace,” Huang said.

“With current infrastructure already struggling, data centre managers risk massive failures if they do not start to adopt new cooling methods now.”

This article does not constitute financial product advice. You should consider obtaining independent advice before making any financial decisions.