Home - High quality magnesite and downstream products

QMAG is a leading producer of premium-quality magnesia products. From one of the world’s largest deposits of cryptocrystalline magnesite in Queensland, Australia, we mine, process and deliver to global and domestic customers with a strong focus on sustainability.

Caustic calcined magnesia (CCM)

QMAG’s CCM is a chemically reactive material that is used in numerous industries such as agriculture (for animal feed and fertilisers), the iron and steel sector, and in pulp, paper and water-treatment plants for pollution control.

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High-grade caustic calcined magnesia (HGCCM)

QMAG’s HGCCM is used to precipitate rare earths, nickel and cobalt, critical for the growing EV battery market, as well as uses in numerous other industrial and agricultural applications

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Deadburned magnesia (DBM)

QMAG’s DBM is used as a raw material for refractory bricks used in iron and steel making furnaces.

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Electrofused magnesia (EFM)

QMAG’s EFM is used as a raw material for refractory bricks used in iron and steel making furnaces and associated equipment where high wear resistance is required. With high melting point secondary phases, these chemical properties combined with the high density and very large periclase crystal size, ensures that QMAG’s EFM products are considered amongst the best available in the world.

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Industries

The high temperatures of steel, iron, cement, glass and ceramics production require thermal insulation in the form of refractory bricks using our DBM and EFM magnesia products. The agricultural sector uses our magnesia as a vital animal feed supplement and fertilizer to maintain plant and animal health. We support the path to net zero carbon emissions by supplying our magnesia to precipitate nickel and cobalt used in EV batteries. Our magnesia is also used in numerous industrial applications such as waste water treatment and the pulp and paper industry.

Refractory

Hydrometallurgical

Agricultural

Chemical

News

Unlock Higher Recovery in Hydrometallurgy with EMAG45!

When it comes to precision and performance in hydrometallurgical precipitation, EMAG45 from Queensland Magnesia (QMAG) stands in a league of its own. Produced from one of the world’s largest cryptocrystalline magnesite deposit in Queensland, Australia, EMAG45 is QMAG’s highest reactive caustic calcined magnesia, engineered specifically for demanding metals recovery applications.

IWD 2026

Today we recognise International Women’s Day, and a chance to celebrate the achievements, resilience and contributions of women everywhere.

From our Ore to Your Door - Episode 18: Electrofused Magnesia Production

New Initiatives

We are excited to share that QMAG has successfully secured funding under Queensland’s Collaborative Development Program!

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Start planning your future career with QMAG.

By joining QMAG, you’ll work as part of a highly diversified team within an inclusive corporate culture that puts people first. We work flexibly, pay fairly and provide our employees with a great work-life balance.

See our current vacancies and submit your application today.

Careers