Mr Promnitz was previous Managing Director of Lake Resources NL, a lithium brine developer. He successfully secured the lithium assets for Lake Resources in 2016, and developed the previously untested Kachi lithium brine project in Argentina with new technologies to a stage where most project financing is indicatively in place for its development. In the process, he took a $1 million market value private company, using new exploration models and ESG friendly extraction techniques, to form an ASX 200 Company with a strong balance sheet and a market capitalisation of ~$A2.1 billion at the time of his departure.

Prior to Lake Resources, Mr Promnitz worked in the gold sector with major and mid-tier producers as well as across the battery minerals of copper, nickel and rare earths, and the broader natural resources and energy sector, with a focus on South America, South-East Asia and Australia. Previously he was CEO of small/mid-tier companies and has held senior management roles with global resource companies (Rio Tinto, WMC) and senior corporate finance roles with major banks (Westpac, Citigroup). He holds a BSc (Hons) from Monash University.