ChemX Materials

Testwork Delivers HPA Flowsheet Enhancements And HPM Market Update

ChemX Materials Ltd (ASX: CMX) (ChemX or Company), an Australian based high purity critical materials business, is pleased to announce significant progress in both HPA and HPM business streams.


  • High Purity Alumina (HPA)
    • Pilot Plant flowsheet optimised following further operational testwork success of HPA Micro Plant.
    • Pilot Plant to allow for intermediate HPA products for qualification with battery separator manufacturers.
    • CMX’s 100%-owned HiPurA® HPA International Patent progressing on track
    • Pilot Plant equipment first deliveries to ChemX expected this month.
  • High Purity Manganese (HPM)
    • Maiden Mineral Resource Estimate for Jamieson Tank Manganese Project on the Eyre Peninsula, South Australia to be finalised in consultation with CSA Global this month.
ChemX Materials has been advancing the development of its 100%-owned HiPurA® HPA Pilot Plant, to be located at its dedicated facility in O’Connor Perth, Western Australia to deliver the required volumes of HPA for product qualification with Battery Separator manufacturers and consumers of high purity aluminous products and synthetic sapphire producers. As a result of marketing activities and industry discussions, ChemX has identified markets for intermediate high purity aluminous products, which offer potential volume increases in addition to the markets for 4N and 5N HPA.

Chief Executive Officer Peter Lee commented:

“The Micro Plant has proven extremely effective in delivering the process data required to improve the design and optimise the operation of the Pilot Plant ahead of time. This has resulted in a significant reduction in capital costs and reagent requirements.

Importantly, the resized pilot plant will still meet expected customer demand in producing sufficient product to complete qualification with battery separator makers, synthetic sapphire growers and other burgeoning markets”.

Following recent strategic investment in high precision analytical equipment and dedicated human resources for high purity analysis, the HPA Micro Plant has experienced increased operational performance, with these enhancements being fed directly into the HPA Pilot Plant flowsheet design.

The step-change in performance of the HPA Micro Plant has been a key highlight and success of the scaled development approach, which has provided added confidence and reduced the risk associated with scaling up high purity metallurgical processes, which is common under continuous operation for novel technologies.

HPA Update

CMX’s 100%-owned HiPurA® process is a disruptive flowsheet which converts aluminous chemical feedstocks through selective refining to high purity alumina. Ultimately, CMX aims to achieve the delivery of 4N high grade and potentially 5N HPA products for the electric vehicle battery separator and synthetic sapphire markets, LEDs, semi-conductor and optical lenses.

Figure 1. HPA Micro Plant Production

In July 2022, the Company lodged an international patent application, with a recent preliminary international report indicating ChemX’s claims complied with requirements for novelty, inventive step and industrial applicability. The patent approval process is ongoing. The progression of the HiPurA® patent is a significant step for the Company in the protection of its intellectual property and competitive advantage against incumbent operators who rely on non- novel, licenced, energy and reagent intensive technologies to produce high purity alumina.

As the HiPurA® HPA process is modular, scalable and independent of direct mine production, this will enable ChemX to locate key production facilities close to customers. Ongoing customer engagement has led to the identification of new intermediate products. The inclusion of these requisite flowsheet process enhancements and alternative product pathways will now add several weeks to the construction timeframe and result in a robust pilot plant design, negating the requirement to build additional plant(s) to produce alternative intermediate products for customer qualification.

With the success of the Micro Plant under continuous operation, it will be modified to take feedstock from the Pilot Plant to produce premium products such as 5N (99.999%) HPA, used for synthetic sapphire production.


Click here for the full ASX Release

This article includes content from ChemX Materials, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.

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Agreement with Vytas Ltd for High Purity Assay Services

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