Discovered in 2007, the project is located along the Barton shoreline within the Wanna Lakes area of the northern Eucla Basin, 25 kilometres from Western Australia’s state border with South Australia and 220km north of the transcontinental railway.

The Cyclone deposit occurs within adjoining tenements M69/141 (Cyclone), held by Diatreme’s wholly owned subsidiary, Lost Sands Pty Ltd, and R69/1, (Cyclone Extended), held by Diatreme directly.

In November 2014, Western Australia’s Department of Mines and Petroleum granted a Mining Lease for the project (within ML69/141), which followed the signing of a project agreement with the traditional owners, the Pila Nguru Spinifex People. In January 2017, the project received final ministerial consent, allowing for the development of a mineral sands mine and associated infrastructure.

In January 2017, Diatreme updated the Cyclone Mineral Resource estimate to 203Mt at 2.3% heavy minerals (HM) (1% HM cut-off grade) containing 4.70Mt of HM (refer to Diatreme’s ASX announcement dated 27 April 2017).

In late 2023, Diatreme expanded (39 sub blocks) the exploration tenement area surrounding Cyclone, with the grant by the Western Australian Government (DEMIRS) of E69/4143. This additional exploration area further protects Cyclone’s existing tenement (mining and retention licence) holdings.

A drilling program completed in 2024 produced 11 tonnes of bulk samples representative of the first three years of the Cyclone Ore Reserve.

Testwork on an 8 tonne bulk sample was completed in 2026 demonstrating significant improvement to production of zircon and titanium products.

Flowsheet optimisation has resulted in life of mine forecasts of 3.2Mt HMC production (an increase of 58.3% from previous testwork), 866kt zircon production (6.8% increase), and 1.6Mt titanium concentrate production (95.6% increase).

Diatreme continues to engage with potential project partners (offtake and/or investment) to unlock shareholder value and for the development of this Australian critical minerals project.