Green Critical Minerals’ VHD Technology Impresses in Heat Sink Microchip Testing

Green Critical Minerals (ASX: GCM) continues to attract growing global interest from prospective customers and industry partners as it progresses its unique VHD graphite technology toward commercial-scale production.

The company recently received significant results from finite element modelling it had commissioned international specialist Professor Qing Li to conduct on the VHD technology graphite heat sink.

The testing was able to successfully compare the heat dissipation performance of the VHD heat sink against conventional heat sink materials, with preliminary results showing that the VHD heat sink is able to substantially lower the operating temperature of high-performance microchips.

Improved Power Loads

The new tests found that Green Criticals’ VHD heat sinks accommodate 300-to-400-watt power loads at microchip temperatures of 70 to 85 degrees celsius, significantly better than the 200-250W range achieved with traditional materials.

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

Green Critical has also identified potential for applying the emerging VHD technology to other thermal management products such as cold plates used in liquid cooling solutions.

“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 […] and generating first revenue in the first half of 2026,” Mr Booth said.

Unique Capabilities

Mr Booth said the modelling results demonstrated the unique capabilities of the VHD technology.

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

With the positive results in hand, Green Critical plans to ramp-up customer engagement discussions with global thermal management providers and semiconductor manufacturers.

The company anticipates a strong flow of updates for the remainder of 2025, including customer advancements and first sales agreements.