Senior Management 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 Corporate, 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 Craig Dawson – AssocDipMMT, BAppSc, MBA, MAusIMM, GAICD, AWASM
General Manager Operations


Craig Dawson is a mining engineer with considerable mine development experience and expertise spanning three decades. Mr Dawson previously held the role of General Manager Operations with Sandfire Resources, where he led the successful development and commissioning of the DeGrussa Copper Project in Western Australia. He has held senior positions with companies such as Lion Ore/ Norilsk Nickel, Northern Mining Ltd, Aditya Birla Minerals Ltd and Noble Mineral Resources and is a non-executive director of Indochine Mining Ltd.


Mr Brad Valiukas – BEng (Mining), Member AusIMM
Mining Consultant 

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.