Peter Rohner,
Managing Director

Mr Rohner (Grad Dip Applied Finance & Investment, BSc - Metallurgy) has over 30 years’ experience in the mining industry. In particular, he has been heavily involved in mineral process technology development including development of the Jameson flotation cell, IsaMill fine grinding and, more recently, significant involvement in further development of Glencore’s Albion Process (fine grind oxidative leach) technology.

Mr Rohner is currently a Technical Director of both the Core Group, which provides metallurgical processing solutions to its global clients, and Stibium China Holdings Ltd, which owns a producing gold asset in South Africa. He is also a director of Stibium Mining Pty Ltd and Tartana Resources Limited.

Peter Mullens,
Executive Chairman

Mr Mullens (B.Sc, Geology, Fellow AUSIMM) has over 35 years’ experience in the mining industry from early exploration to development and mine production. He has been involved with major companies having worked for Rio Tinto and Mt Isa Mines at world class Broken Hill and Mt Isa Ag, Pb, Zn mines located in Australia.

Mr Mullens has been closely involved in companies raising in excess of USD $250 million since 2002. He is currently Non-Executive Chairman of Royal Road Minerals (TSX-RYR) who is exploring in Colombia and Non-Executive Director of G2 Goldfields Incorporated (TSXV-GTWO).

He has had a history of success with junior exploration companies over the last 20 years including:

  • Acquiring Aquiline Resources’ Argentinean projects and the resulting sale to Pan American Silver for CAD $ 630 million in 2009.
  • Chief Geologist and director for Laramide Resources, (TSX-LAM) and saw the stock rise from CAD 7 cents in 2002 to a peak of CAD $ 15.00. The number 1 company on the Toronto Venture Exchange in 2005.
  • Co-Founder and director of Lydian Resources (TSX-LYD) who discovered and are developing the 4 million-ounce Amulsar Gold Deposit located in Armenia. He was involved with the company from prelisting to completion of the feasibility study.


Peter Thompson,
Non-Executive Director

Mr Thompson is a CPA qualified accountant and Fellow of Governance Institute of Australia. He has over 35 years' experience in the mining industry in Australia, UK and South America. He has held senior roles with several major companies including Xstrata Plc, MIM Holdings Ltd and Mt Edon Gold Mines.

Since 2000, Mr Thompson has been involved in the development of various infrastructure projects, including mine and refinery expansions and establishment of infrastructure including roads, rail, port and power utilities. Mr Thompson was appointed as a non-executive director of Nova MSC Berhad, a Malaysian public company on 1 June 2017.

Sunny Loh,
Non-Executive Deputy Chairman

Mr Loh’s expertise lies in corporate strategy, finance markets, investor relations and capital restructures. Mr Loh holds a BBA from National University of Singapore and an MBA of Strategic Marketing from the University of Hull. He is also an Associate of the Institute of Chartered Secretaries and Administrators.

Mr Loh has been appointed to the role of Deputy Chairperson. In this role he will further support the Board through interaction with the Company’s overseas shareholder base, and via evaluation of additional funding and corporate options to further develop and grow GBM. Mr Loh is a substantial shareholder in GBM. He has a long and supportive relationship with the Company as both a shareholder and, previously, as a Non-Executive Director.

Brent Cook,
Independent Non-Executive Director

Mr Cook is an economic geologist with over 40 years’ experience in exploration, mining and finance. During his career he has worked on nearly every deposit type in over 60 countries. From 1997 until 2003 Mr Cook was chief analyst at Global Resource Investments (now Sprott Global) and an advisor to three micro-cap junior exploration funds.

In 2008, Mr Cook founded the widely respected Exploration Insights investment newsletter, which is followed throughout the mining industry; he was author and editor from 2008 to 2016.

Since 2003 Mr Cook has also acted as an independent advisor and mining analyst, working with a number of junior mining companies, money management groups and individual investors. He brings a wealth of knowledge from his experiences within the Financial and Mining sectors, particularly those of North America, along with his many contacts throughout the industry. Mr Cook's expertise, experience and contacts will provide much value to the GBM board, for both technical evaluations and business development.