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Australian company actively developing and seeking opportunities in the resources, energy materials and clean energy space

Directors & Management

Charles Whitfield

Mr. Whitfield is the Principal Investment Officer at Drumrock Capital, an investment firm providing capital and advisory services to start-up and early round companies. He has undertaken board and supporting roles in several companies in the specialty resource and new energy space. He was formerly a Managing Director with Citigroup where he held the position of head of the corporate equity solutions group (Asia Pacific). Prior to this, he worked for Deutsche Bank where he was head of the strategic equity transactions group (Asia Pacific). Mr. Whitfield received his Masters in Business Administration (majoring in Finance and Strategy) from Columbia Business School (New York) in 1998 and his Bachelor of Economics from The University of Exeter (U.K).

Mike Rosenstreich
Managing Director

Mike Rosenstreich is an international mining executive with over 30 years’ experience including;13 years as an exploration and mine geologist with Homestake Gold and Dominion Mining; 6 years Corporate Finance with Rothschild Australia; 9 years as founding Managing Director of ASX listed Bass Metals from pre IPO stage, exploration success and over 5 years of base and precious metals production; and 3 years at Keystone Resource Development providing corporate, technical and financial consulting services. During this time he has been involved in a wide range of commodities from gold and base metals to industrials such as tantalum, feldspar and mineral sands across the globe. He joined Hexagon in March 2017 and since then has been instrumental in charting Hexagon’s path to commercialise its McIntosh Graphite project, located in Western Australia.

Mike is a Fellow of the AusIMM and a member of the AICD. He holds a BSc (Hons) in Geology and Masters in Mineral and Energy Economics.

Garry Plowright
Non-Executive Director

Mr Plowright has extensive experience in the resource sector, having a background in mining law and administration, as well as regulatory process and mine development. Mr Plowright has held board and senior management positions in both Australia and South Korea.

Lianne Grove
Chief Commercial Officer

Lianne was appointed Hexagon’s Chief Commercial Officer in September 2018. She is an experienced senior finance executive with a wealth of commercial and finance experience and a strong track record in the development and implementation of business strategy, joint venture management and project planning and execution which is instrumental in supporting the commercialisation of Hexagon’s graphite resources and processing technology.

Prior to joining Hexagon she held various senior positions in a number of Australian and international companies predominantly in mining and oil and gas, including AWE and Rio Tinto.

Lianne holds a Bachelor of Commerce from the Australian National University, is a Certified Practicing Accountant and a Graduate of the Australian Institute of Company Directors (GAICD).

Gavin Beer
Strategic Advisor on Rare Earths

Gavin Beer is a metallurgist with more than 30 years’ experience in technical and operational roles and has spent the past 13 years exclusively working within the rare earth and energy materials sector.  He has been employed by or has consulted to over 12 rare earth companies including Arafura Resources, Peak Resources, Hastings Technology Metals, Pensana Metals and  RareX.

Gavin is a Member and Chartered professional of the Australian Institute of Mining and Metallurgy. He is recognised as a Competent Person for JORC and as a Qualified Person for NI 43-101 with respect to his metallurgical expertise and is globally recognised as a leading metallurgical expert in the rare earth industry.

Company Secretary

Rowan Caren

Rowan is a Chartered Accountant and graduated with a B.Com from the University of Western Australia. Rowan has over 20 years of experience in the minerals exploration industry and has provided financial and corporate services to several listed and unlisted companies involved in the resources sector.

He joined Hexagon as Company Secretary in September 2017.