Technical Management

Charles has over 35 years’ experience as a geologist in the mining industry. He worked with WMC Resources Limited for 16 years, holding various senior exploration and operational positions including Exploration Manager - Nickel Exploration Australia, and Geology Manager Hill 50 Gold Mine. 

During his time with WMC Resources, Charles was instrumental in the discovery of the Argo gold mine at Kambalda and managed exploration programmes during the discovery of the West Musgrave Nebo and Babel deposits.

After five years as the initial Managing Director of Northern Star Resources Ltd, Charles joined Western Areas Limited in 2008 as General Manager Exploration.

During his 9 years at Western Areas, that company developed the Spotted Quoll deposit, significantly increased its resource inventory and became Australia’s No. 1 independent nickel sulphide producer.

Dave Mahon joined St George in December 2018 and since then has supervised all exploration programmes at Mt Alexander and our Paterson Project. Prior to joining St George, Mahon gained specialist nickel sulphide expertise working with Western Areas Limited (ASX: WSA) as a mine geologist and project exploration geologist, including at the Forrestania nickel operations and across several regional exploration projects. Dave is a graduate of Curtin University with a Bachelor of Science (Honours) in Applied Geology and a Bachelor of Commerce.

Mr Rios was employed at the Araxá operations of CBMM from 1996 to 2020, working in several roles including senior leadership positions in mineral processing and mining operations culminating in the Mineral Production Senior Management position responsible for seven departments. Key functions at CBMM included management of mineral processing systems, metallurgy analysis, product innovation, offtake specification, utilities and mine operations.

Mr Rios was appointed by CBMM to serve from 2018 to 2020 as Director of Operations at COMIPA, the mining joint venture between CBMM and CODEMIG (the mining company owned by the State of Minas Gerais) that handles most of the niobium and REE mining at the Barreiro Carbonatite.

Mr Amaral has extensive experience in niobium mining and production gained through more than 17 years with CBMM at its Araxa operations where his roles spanned licensing and permitting, implementation of ESG and sustainability programs, and quality control for processing and production. Senior leadership positions held by Mr Amaral included Global Quality and Product Regulation Coordinator, Head of Sustainability, and Business Development Manager in China.

Mr Amaral also served as a Professor of Engineering from 2008 to 2017 at the University of Araxá and the Santa Edwiges Escola Técnica.

Wanderly is a Brazilian trained geologist who has been working in Australia for more than 10 years. He has extensive experience across a range of mining projects spanning greenfields exploration, advanced developments, resource definition and producing mines. Wanderly has been involved with projects in Brazil and Western Australia including both open-pit and underground mines.

Wanderly is a Member of the Australian Institute of Geoscientists (AIG) and a Member of the Brazilian Geological Society (SBGeo). He is fluent in English and Portuguese.