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Our Operations

Calix owns and operates a mine in South Australia, and a production and testing facilities at Bacchus Marsh (VIC), and the Gold Coast (QLD).


Myrtle Springs


Calix, via its wholly owned subsidiary MS Minerals Pty Ltd, owns and operates two mining tenements at Myrtle Springs, located in the Leigh Creek area, South Australia. These give the company the benefit of long term access to high grade* magnesite minerals.


A JORC-compliant resource assessment was carried out on Calix’s Myrtle Springs mine in March, 2018, with a total of over 450,000 tonnes of magnesite identified across the various JORC Ore Reserves categories (Proved Ore Reserve 163,700 tonnes and Probable Ore Reserve 302,000 tonnes). Assuming the Bacchus Marsh CFC is fully utilised for magnesite processing (50,000 tonnes per annum input), the deposit could supply high grade minerals for production at Bacchus Marsh for a least 3 years (based on Proved ore reserves) and possibly up to 9 years (adding Probable ore reserves).


According to the Australian Atlas of Minerals Resources, Mines and Processing Centres, Calix’s Myrtle Springs mine sits within the largest identified Economic Demonstrated Resource (EDR) of magnesite in Australia, at 235 million tonnes.


Calix uses the minerals from the Myrtle Springs mine to produce Calix's range of magnesium-based products.


*The information on this page that refers to a JORC-compliant resource is based on information prepared by Ric Horn of Hornet Resource Assessment Services Pty Ltd. Ric is a Fellow of the Australasian Institute of Mining and Metallurgy and a Chartered Professional and is bound by and complies strictly with the Institutes codes and recommended practices. Mr Horn has 47 years’ experience in the resources industry both in exploration and mining and has sufficient experience relevant to the style of mineralisation under consideration. He has 14 years’ experience involved with the deposit under consideration and activities being undertaken to qualify as a competent person as defined in the 2012 Edition of the JORC Code of the “Australasian Code for Reporting of Exploration Results, Mineral Resource and Ore Reserves”. Mr Horn consents to the inclusion on the web page of the matters based on his information in the form and context in which it appears.

Bacchus Marsh


The six-hectare Bacchus Marsh site showcases our world-first technology, and was established in early 2010 and has grown to include a small-scale pilot Calix Flash Calciner “CFC” for materials testing, a fully equipped R&D facility for investigating new materials and quality control, and our commercial-scale CFC including feed bunkers, crushing and grinding circuits, feed mixing and pre-heating, processing, product storage and handling, and a Magnesium Hydroxide Liquid production and storage facility.


With a nameplate capacity of 25,000 tonnes per year of Magnesium Oxide production, our Bacchus Marsh facility has significant capacity to meet local and overseas market expansion.


Calix’s product development, production and supply were ISO9001 accredited in 2015, and were upgraded to ISO2001–2105 in June, 2017.

Gold Coast

Calix’s advanced Magnesium Hydroxide Liquid (MHL) production plant on the Gold Coast was successfully commissioned in late December 2014. The plant has a capacity of 6,000 tonnes per annum per operating shift and can easily scale to grow with our customers’ needs. Using Calix’s unique, high reactivity Magnesium Oxide (MgO) powder as a feed source, the plant is capable of producing a batch of 60% solids MHL in less than 90 minutes, a world first. The plant is currently servicing all of Calix’s Queensland and northern New South Wales customers with plenty of additional capacity available for further growth, and was built with the kind assistance of a Commercialisation Australia grant.



The company has also established a hydration plant via our Joint Venture Partners in the Philippines – ACTI-Mag Asia Inc. -  and intends to keep building and operating these hydrating facilities worldwide. Calix also has an established UK office developing our business and projects in Europe.


Map of Calix Global Locations