Advanced Energy Minerals has completed upgrades at its Quebec facility to produce ultra-low alpha High Purity Alumina, targeting the semiconductor sector with initial supply to Asian customers underway.
- Commercial-scale production of ultra-low alpha HPA commenced at Cap-Chat plant
- SupALOX L-Series™ launched for advanced semiconductor thermal packaging
- Customer trials initiated in Korea, Japan, and China
- Plant capacity set to expand from 2,000 to 3,000 tpa in 2026, with further growth planned
- HPA market growth driven by semiconductor demand and ESG sourcing preferences
A New Benchmark in High Purity Alumina Production
Advanced Energy Minerals Limited (ASX: AEM) has marked a significant milestone with the completion of modifications at its Cap-Chat plant in Quebec, enabling commercial-scale production of ultra-low alpha High Purity Alumina (HPA). This refined product, branded as the SupALOX L-Series™, boasts exceptionally low levels of uranium and thorium, meeting the stringent purity requirements demanded by cutting-edge semiconductor applications.
The ultra-low alpha HPA is specifically engineered for thermal interface management in advanced semiconductor devices, including AI accelerator chips and high bandwidth memory modules. These applications require materials that not only deliver superior thermal performance but also minimise alpha radiation, which can interfere with sensitive electronic components.
From Laboratory Innovation to Industrial Trials
Following successful laboratory development of a proprietary Chlorine Leach Crystallisation Purification (CLCP) process refinement in 2025, AEM swiftly implemented plant modifications to scale production. Independent testing has confirmed uranium levels as low as 0.56 parts per billion and thorium below detection limits, surpassing customer expectations.
Production is now underway to supply Korean, Japanese, and Chinese customers who have commenced industrial-scale trials. Early feedback from these key markets indicates the material meets their demanding low-alpha specifications, positioning AEM as a credible supplier in the competitive semiconductor materials landscape.
Strategic Growth Amidst a Booming Market
The global HPA market is forecast to grow at a robust 10% compound annual growth rate through 2034, driven largely by semiconductor and electronics applications. AEM’s Cap-Chat plant, currently operating at 2,000 tonnes per annum (tpa), is set to expand to 3,000 tpa later this year, with plans to reach 6,000 tpa by 2029. This expansion will establish the facility as the third largest HPA producer outside China.
Importantly, AEM’s production benefits from a low carbon footprint, utilising renewable hydroelectric power and achieving approximately 77% lower emissions than traditional methods. This ESG-compliant positioning is increasingly attractive to customers seeking sustainable supply chains amid tightening environmental regulations.
Looking Ahead
With the SupALOX L-Series™ launch, AEM is not only advancing its product portfolio but also reinforcing its strategic foothold in a high-growth, high-value segment of the materials market. The company’s ability to meet evolving semiconductor industry demands with ultra-pure, low-alpha HPA could unlock new commercial opportunities and partnerships across Asia and beyond.
Bottom Line?
AEM’s ultra-low alpha HPA launch sets the stage for growth in semiconductor materials amid rising purity and sustainability demands.
Questions in the middle?
- Will industrial trial results translate into long-term supply contracts?
- How will AEM’s cost position evolve as production scales to 6,000 tpa?
- What competitive responses might emerge from other HPA producers, especially in China?