Board and management
A PROVEN LITHIUM-FINDING BOARD AND MANAGEMENT
Stephen Biggins (MBA, BSc (Hons) Geol, MAusIMM)
Executive Chair
Stephen Biggins has built a highly successful career spanning 30 years as a geologist and executive in mining industry internationally. Utilising his Honours Degree in Geology and MBA, he has served as a founding director and executive of several ASX-listed companies, building prospective portfolios of lithium, gold, uranium, and base metal projects across Australia, Asia, Africa, and North America, ultimately leading to the discovery and development of several operational mines.
Mr Biggins served as Managing Director of Core Lithium (ASX: CXO) for a decade of leadership. He successfully guided the company through the acquisition, discovery, approval, financing, construction, and production phases of the Northern Territory’s first operational lithium mine. Under his stewardship, CXO was one of the best-performing and highest-traded stocks on its pathway into the ASX 200.
Currently, Mr Biggins serves as the Non-Executive Chairman of Auravelle Metals (ASX: AUV), an ASX-listed gold explorer targeting high-value discoveries across South Australia’s world-class Gawler Craton and Western Australia’s premier gold belts.
His previous key leadership roles include serving as Non-Executive Chairman of Canadian lithium explorer Winsome Resources (ASX: WR1), which was acquired by Li-FT Power Ltd (TSXV: LIFT) in 2026 in a transaction valued at approximately A$130.8 million. He was also the founding Managing Director of Southern Gold (ASX: SAU) from 2005 to 2010, where he led the acquisition and discovery of the Cannon Gold Mine in Western Australia, and a founding director of Investigator Resources Ltd (ASX: IVR), which discovered the high-grade Paris Silver resource in South Australia.
The Board considers that Mr Biggins is not an independent Director.
Geoffrey Webster (MBA, BEng Civil (Hons), GAICD)
Non-Executive Director
Geoffrey Webster is a Chartered Professional Engineer, graduating with honours from the University of Adelaide, and is the director of a specialist engineering consultancy located in South Australia. He is a member of the Australian Institute of Company Directors and has been awarded a MBA through Latrobe University.
With nearly 25 years’ experience in the engineering sectors, Mr Webster has previously worked as the General Manager for ASX 200 listed company Transpacific Industries Group (now Cleanaway) in a national capacity, as well as working as the project manager for a Hong Kong-based investment company Path Line Australia. Mr Webster is currently the deputy chair of not-for-profit entity KESAB. Mr Webster has recently been appointed National President of a peak body for all stakeholders in the resource recovery industry, the Waste Management and Resource Recovery Association of Australia.
The Board considers that Mr Webster is an independent Director.Â
Will Dix (BSc, MSc Geol, MAusIMM)
Non-Executive Director
Will Dix is a highly experienced geologist with over 30 years of expertise across base metal, gold, and uranium exploration and mining. His diverse career spans operations throughout Australia, Central and South America, and Africa. Alongside his technical background, Mr. Dix has extensive experience in project and team management, as well as a strong track record in corporate transactions, including capital raisings, mergers, acquisitions, and divestments.
Mr Dix holds both a Bachelor of Science and a Master of Science (Geology) from Monash University. He is a Fellow of AusIMM and a graduate of the Australian Institute of Company Directors (AICD). He currently serves as the Chief Executive Officer of Belararox (ASX: BRX) and as a Non-Executive Director of Breakthrough Minerals (ASX: BTM). His previous leadership roles include Managing Director of Trinex Minerals (ASX:TX3), and as a director of Fitzroy Resources Ltd (ASX: FRY), Credo Resources Ltd (ASX: CRQ), BBX Minerals Limited (ASX: BBX), and Consolidated Zinc Limited (ASX: CZL).
The Board considers that Mr Dix is an independent Director.
Dr Qingtao Zeng (PhD Geol/Earth Sci, MSc Mining & Mineral Eng, MAusIMM, MSEG)
Non-Executive Director
Dr Qingtao Zeng is a geologist and holds a PhD in geology from the University of Western Australia. He has been extensively involved in the international lithium and critical minerals development sector and through his strong network of global contacts that has helped clients complete a range of contracts relating to the supply or purchase of critical minerals products and ores.
In the NT, Dr Zeng advised Core Lithium (ASX:CXO) on several substantial offtake and finance deals, which were key platforms for building international recognition and project finance for the Finniss Lithium Project.
Dr Zeng is currently Managing Director of Australasian Metals (ASX:A8G) and was founding Director of Winsome Resources (ASX:WR1), which discovered the globally significant 78Mt Adina Lithium Resource in Quebec and subsequently completed a merger with Lift Power (TSXV:LIFT) valued at approximately A$130 million.
Andrew Bennett (BSc (Hons) Geol)
Exploration Manager
Mr Bennett is a geologist with extensive Northern Territory exploration and development experience, joining Stelar from a career built on discovery-to-resource delivery in Australian critical minerals. Andrew has worked not only in the NT, but also in mining and exploration roles with large organisations such as BHP and WMC, including a role as chief geologist during expansion studies at Olympic Dam.
Most recently, Mr Bennett held the role of Exploration Manager at Core Lithium Ltd (ASX: CXO), where he previously worked alongside Stelar’s Executive Chair, Mr Stephen Biggins. He played a key role in advancing CXO’s Finniss Lithium Project in the Northern Territory from early-stage exploration to a world-class critical minerals asset with a Mineral Resource of approximately 50 million tonnes. This includes the 58% Mineral Resource increase that CXO announced in April 20241 and multiple new deposit discoveries within the Bynoe pegmatite field.
His experience spans greenfields target generation, RC and diamond drilling program design and execution, JORC (2012) resource definition, heritage and Land Council engagement, and Northern Territory regulatory and permitting processes, a skill set directly applicable to Stelar’s tungsten portfolio.