Prior to November 2018, ioneer Ltd was known as Global Geoscience Limited.


Global Geoscience listed on the ASX and one of the founders was current ioneer Managing Director Bernard Rowe.

The focus of Global Geoscience was to apply geological science and theory towards making a major greenfield mineral discovery.

Primarily exploring in and around Nevada, Global Geoscience entered into several exploration partnerships with major mining companies.


The Company's strong reputation led prospectors to bring a little-known lithium-boron project in southern Nevada to Mr Rowe.

He recognised that Rhyolite Ridge mineralogy was fundamentally different than other known sedimentary lithium deposits. At Rhyolite Ridge two thick sedimentary layers contain lithium and high-grade boron, and very little clay. This critical difference in why Rhyolite Ridge will become the lowest cost source of lithium in the world.


Global Geoscience secured ownership of the Rhyolite Ridge Lithium-Boron Project and fully committed to its development.


The Company changed its name from Global Geoscience to ioneer Ltd to reflect its new focus and commitment to becoming an important producer of the materials necessary for a sustainable future.

In October 2018, the Company announced the results of a Pre-Feasibility Study that clearly showed that Rhyolite Ridge will be a structurally low cost and very long-life mine supplying two critical materials necessary for urbanization and energy efficiency.


In April 2020, the Company announced the results of a Definitive Feasibility Study validating the robust economics and viability of Rhyolite Ridge.

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