Senior Management & Exploration Team

Mr Darren Holden - BSc Hons, MAusIMM 
Managing Director

Mr Holden is a geologist with over 19 years' experience in mining and exploration. He is a graduate of the University of Otago (NZ) and The University of Western Australia and is a Member of the Australasian Institute of Mining and Metallurgy.

Mr Holden has previously held the role of Senior Consultant at Fractal Geoscience and was involved in geophysical and geological modelling and targeting on a wide range of deposit styles. Mr Holden also held the roles of Vice President and Chief Operating Officer of Geoinformatics Exploration Inc for the period from 2001 to 2009. Under Mr Holden’s exploration tutelage Geoinformatics successfully delineated several new discoveries including a multimillion ounce gold-copper project in Alaska and other base and precious metal discoveries in British Columbia, Nevada and Mexico.

Mr Holden returned to Perth in November 2009 to take up the position of Managing Director at ABM Resources NL.

Ms Jutta Zimmermann - Dip AQF, Dip IT, GradDipACG, AGIA 
General Manager, Chief Financial Officer, Company Secretary

Ms Zimmermann is an accountant (Australian AQF diploma level) with over twenty five years of experience (Germany and Australia) in accounting, taxation and management. She holds a diploma in information technology (Australian bachelor degree level) from the Furtwangen Polytechnic and a graduate diploma in applied corporate governance. She is an associate member of the Governance Institute of Australia and is Director of two of ABM’s subsidiaries.

Mr Brad Valiukas – BEng (Mining), Member AusIMM. 
Chief Operating Officer

Mr Brad Valiukas is a Mining Engineer with over 16 years management and technical experience in the Mining Sector. Mr Valiukas has previously held roles of Chief Operating Officer at Focus Minerals Ltd, Deputy Chief Mining Engineer at Mincor Resources and has worked in both open pit and underground mining environments, and is an expert in narrow vein mining. Mr Valiukas has also worked as a Mining Engineer Consultant with RSG Global and has held multiple Mine Manager and Mining Engineer positions, including for WMC Ltd, Homestake Mining and mining contractors. Mr Valiukas holds a Bachelor of Engineer (Mining) from the University of New South Wales and multiple industry based accreditations.

Mr Pascal Hill – BSc (Hons) MAIG
Exploration Manager

Mr Hill is a geologist with over 15 years’ experience ranging from near mine to regional exploration in IOCG, porphyry copper – gold, epithermal gold, VMS lead – zinc – silver, orogenic gold and rock phosphate. Having graduated from the University of New England, Mr Hill worked extensively in Nth Queensland prior to joining Triako Resources at Mineral Hill in 2002. In 2005, Mr Hill joined Newmont at Pajingo, and subsequently transferred to Newmont’s Tanami Operations at Callie, where he spent 5 years as Senior Geologist, District Exploration. Mr Hill was awarded the Newmont APAC Near Mine Exploration Excellence Award for his work in The Tanami.

Mr Justin Robins - BSc,  PGradDip
Environmental Manager

Mr Justin Robins with over 19 years experience in the mining sector has held roles in both geology and environmental management spanning both the public and private sectors. These roles have included working for the Department of Mines and Petroleum (WA) and a number of mining companies. Mr Robins is a graduate of the University of Otago (BSc Geology) and Murdoch University (Post Graduate Diploma Environmental Management).

Ms Berdine Mastaglia – BSc, MBA
Manager GIS & Investor Relations

Ms Mastaglia is an experienced and qualified Cartographer involved in the management of a Geoscience Information System (GIS) providing organisation of a geological database and cartographic expertise to the exploration team. Additionally she is involved with a wide range of investor relations responsibilities. She holds a Bachelor of Science (Cartography) from Curtin University and a Masters of Business Administration from the Curtin Graduate School of Business.

Mrs Jane McIntyre – BSc
Manager GIS

Mrs McIntyre graduated from the University of WA with BSc (Geology) in 1988. She entered the mining industry as a diamond exploration geologist and has been involved in database development and administration for 15 years in the commodities Diamonds, Gold, Base Metals, Uranium and Iron Ore exploration. 

Mr Alwin van Roij – BSc, MSc
Project Geologist

Mr van Roij holds a Bachelor of Science in Geology and a Master of Science in Earth Resources and Structural Geology from the University of Utrecht, The Netherlands, and is a member of the AIG. With seven years’ experience in the gold exploration and mining industry, over the last six years Mr van Roji has been working in the underexplored terrain in the Tanami region of the Northern Territory, Australia, gaining exposure to regional exploration through to resource estimation, near mine exploration, open pit and underground mining, with his expertise being in narrow - high grade systems.

Mr Peter Aldridge – BSc

Mr Aldridge holds a Bachelor of Science in Geology from the University of Western Australia and is a member of the AIG, GSA, AAG and SEG. He has over two years’ experience in the commodities iron ore and gold. His experience in mineral exploration ranging from Western Australia’s Mid-West Region and most recently with ABM working in resource definition on the Twin Bonanza project as well as greenfields exploration in the North Arunta region in the Northern Territory.

Ms Kelly McInnes – BSc

Ms McInnes recently graduated with a degree in Bachelor of Science from James Cook University, Queensland, where she studied Economic Geology and Chemistry. Since graduating Ms McInnes has been working with ABM Resources NL carrying out resource definition on the Twin Bonanza project as well as greenfields exploration in the North Arunta region in the Northern Territory.