Gascoyne Resources

Board of Directors


Company Secretary

Rodney (Mike) Joyce 

BSc (Hons), MSc, MAusIMM

Non-Executive Chairman

Mr Joyce is a geologist with around 30 years experence in mineral exploration, following graduation in 1979 with a BSc (Hons) degree from Monash University. He also holds a MSc from the Royal School of Mines, University of London, UK. He was the leader of a successful gold exploration team at Aberfoyle Resources Ltd responsible for significant gold discoveries at Khartoum (Carosue Dam) and Davyhurst in Western Australia prior to joining Giralia Resources NL initially as the exploration manager and then as Managing Director.

Mr Joyce is also a Director of Zenith Minerals Limited.

Michael (Mike) Dunbar 

BSc, P Grad Dip (economic geology), MAusIMM

Managing Director

Mr Mike Dunbar is a Geologist with 25 years experience in exploration, resource development and mining projects, both within Australia and overseas. Mike has been active in exploring and developing a broad range of deposit styles and commodities from Nickel Sulphide deposit development, Archaean and Proterozoic Gold, IOCG copper and gold deposits and sandstone hosted uranium deposits.

Mike was involved in the discovery, delineation and development of the +2Moz Thunderbox gold deposit, the discovery and delineation of the Waterloo and Amorac Nickel Sulphide deposits in Western Australia, the delineation of the Munali Nickel Sulphide deposit, the Mirabella Nickel Sulphide deposit, the IOCG - Cloncurry Copper, Gold, Cobalt, Magnetite as well as a number of smaller deposits.

Mike's experience includes 4 years with Eagle Mining NL, 6 years with LionOre (now Norilsk Nickel) and 6 years with the Mitchell River group of companies including Albidon Limited, Mirabela Nickel, African Energy, Sally Malay Mining (now Panoramic) and Exco Resources.

Stan Macdonald 

Non-Executive Director

Mr Macdonald has been associated with the mining and exploration industry for many years, having been instrumental in the formation of numerous ASX listed companies, including Giralia Resources NL, where he was a director for over 20 years. Mr Macdonald is Director of Avocet Resources Limited (formerly U3O8 Limited) and Zenith Minerals Limited.

Graham Riley 

B.Juris LLB

Non-Executive Director

Mr Riley is a qualified legal practitioner, having gained his Bachelor of Law and Bachelor of Jurisprudence Degrees. After 10 years legal practice as a partner of a commercial firm in Perth, he resigned to pursue private interests in the resources and exploration sector, where he continues to act in various non-executive capacities. Graham was the Non-Executive Chairman of Giralia Resources NL and Red Hill Iron Limited and a Director of Adelphi Energy NL, prior to their takeovers. He was also a Non-Executive Director of Arc Energy Limited. He is currently the Non-Executive Chairman of Entek Energy Limited.

Gordon Dunbar 

BSc (Hons), MSc, FAusIMM, FAIG

Non-Executive Director

Mr Dunbar is a consulting geologist with over 45 years experience in the Australian minerals industry managing project development, mineral exploration and evaluation programs, mine geology, financial studies, production assessment and monitoring joint venture projects. Gordon’s experience includes exploration and mining geology roles at Kambalda with WMC, the evaluation of the Golden Grove base metal deposit in WA, the Chief Geologist at Rosebery Mine in Tasmania and management roles with BP Australia undertaking financial studies, monitoring the evaluation of the Olympic Dam deposit and as Exploration manager for BP Minerals.

Gordon formed his own consulting group in 1990 to provide advice on exploration, evaluation, mining geology, project assessment and prefeasibility studies, particularly those involving gold, base metals and nickel. He has worked on projects within Australia and Internationally. 

John den Dryver 

BE (Mining) MSc FAusIMM (CP)

Non-Executive Director

Mr den Dryver is a mining engineer with over 40 years mining experience in operational and corporate management. John joined Mount Isa Mines in 1973. In 1982, John joined North Flinders Mines as the Company Mining Engineer. He became the Operations Manager for North Flinders after the mine was commissioned in 1986 and over the next 10 years managed the operations as well as developing the further discoveries in this region including the Callie Mine. In 1987 he was invited to join the Board of North Flinders to become Executive Director- Operations.

In 1997 after Normandy Mining took over North Flinders, John was appointed Executive General Manager-Technical leading a team of specialist geologists, mining engineers and metallurgists in operational support, technical review and due-diligence activities. In 2003, after the takeover of Normandy by Newmont Corporation, John set up his own mining consultancy business. Mr den Dryver is a Non-Director of Centrex Metals Limited and Adelaide Resources Ltd.

Sally-Anne Layman

B Eng (Mining) Hon, B Com

Non-Executive Director

Ms Layman was appointed to the Board on 7 June 2017.  She is a mining engineer and accountant with 23 years’ of diverse experience as a mining professional, corporate financier and advisor with significant international and cross commodity experience.

Ms Layman was previously a Division Director of Macquarie Group Limited and Joint Head of the Perth office of the Metals, Mining & Agriculture Division.

Ms Layman is also a Non-Executive Director of Imdex Limited and is Chair of their Audit & Risk Committee.

She holds a Bachelor of Engineering (Mining) Hons, a Bachelor of Commerce, a CPA and a First Class Mine Managers Certificate of Competency WA.


David Lim  


Joint Company Secretary

Mr Lim is a company executive with over 16 years of experience in the resources sector.

Mr Lim spent 12 years working for Equigold NL, a successful Australian gold exploration and mining company which developed and operated several gold mines in Australia and West Africa, and was Equigold’s CFO and Company Secretary at the time of the company’s merger with Lihir Gold in 2008.

Mr Lim has worked for ASX listed companies operating in the Oil and Gas, Coal, Iron ore, Lithium and Gold sectors, and has experience with companies operating in Indonesia, Peru, USA and West Africa.

Mr Lim is a CPA and Chartered Secretary.


Eva O’Malley 


Joint Company Secretary

Ms O’Malley was appointed to the position of Company Secretary in January 2011.

She has extensive experience in managing the financial obligations of ASX listed corporations across a diverse range of industries.