Committee Members

Michael Shearer

PRESIDENTMichael Shearer #

Ventilation and Compliance Engineer
CPB Contractors
WestConnex New M5 and Sydney Metro
Michael has been a member of the MVSA since 2014 and has been serving as an active committee member of the board. Michael currently works for CPB Contractors based in Sydney as a Ventilation and hygiene Compliance Engineer. Michael previously worked for Glencore for 10 years at the Mount Isa Mines operations where he was employed as the Ventilation Advisor.  Michael currently holds a UNSW Graduate Diploma in underground mine ventilation and a Master’s Degree in Mine Engineering from UNSW. Michael previously ran a promotion and consultancy business for 10 years organising sporting events and consulting in the telecommunications environment prior to joining the team at MIM. Michael is passionate about the health and safety of all those working within the underground environment and hopes to work with government bodies and mining companies to help further improve legislative expectations to benefit the mining and tunnelling industries.


Murray Jamieson

Murray Jamieson #


Ventilation Engineer
Cadia East
I have a Masters Degree in Mining Engineering from UNSW (2011) and have been in the mining industry for close to 15 years starting in the Cadia Hill open cut mine, transitioning to underground mining in 2009 at the Cadia East Project owned by Newcrest
Mining Ltd, I have experience in most facets of Underground Mining Engineering Development in Block Caving and Sub Level Caving Methods. I have been on and off in Ventilation since the start of the Cadia East Project. In 2014 I completed the AIOH course in Occupational Hygiene, and in 2015 completed the SIMTARS Mine Ventilation and Environmental Engineering Course. I am currently the Mine Ventilation Engineer for Cadia Valley Operations which encompasses Cadia East and Ridgeway.


Howard Hindley

TREASURERHoward Hindley #

Managing Director
Mine & Tunnel Ventilation (MTV)
Western Australia
Experienced managing director including business management, business finance, planning, safety, estimating & planning, business law, strategic planning & customer relationship development.
Over 30 years mechanical & production engineering, design, manufacturing, installation, maintenance, service & prototype development.
Including 20 years’ experience in ventilation fan design, engineering, manufacturing & supply with turn key installations within the mining and tunnelling Industries within Australia.
Design, supply & installation of compact dust collection systems for the tunnel construction industry with most of the major tunnel project within Australia for the last 15 years.


Jakes Raubenheimer

ADMINJakes Raubenheimer #

Senior ventilation eNGINEER
BBE Consulting (Australasia)
Western Australia
Jakes Raubenheimer has over 32 years’ experience in metalliferous mine ventilation and refrigeration, primarily in an operational role. His operational experience includes working for Western Areas, Anglo Platinum Rustenburg, Union Sections as well as Mount Isa Mines in Australia. Jakes held the position of Senior Ventilation Engineer at the Mt. Isa operations for 5 years where his responsibilities included Enterprise, X41 Copper, George Fisher and the Isa Lead mine. His portfolio included responsibility for the ammonia refrigeration plants, chilled water system as well as surface and underground bulk air coolers. Jakes is familiar with massive ore body mining methods including SLOS, block caving as well as narrow reef stoping methods in gold, copper, lead, zinc and platinum. Jakes is also a fellow member of Mine Ventilation Society of South Africa [MVSSA] and a member of the AusIMM. Jakes obtained his Certificate in Mine Environment Control (Ventilation) from the Chamber of Mines in South Africa and completed a number of modules as part of the British Examination Board – Occupation Hygiene.


Johannes Holtzhausen


Senior Ventilation Engineer
OZ Minerals
Completed my Mine Ventilation and Environmental control studies in South Africa whilst working for Anglo American Platinum mines. Occupational Hygiene plays an integral part in the Ventilation professional’s role in South Africa and I realized early on in my career that a Ventilation design has to ensure safety and health of all workers. It is an amazing feeling when walking away from a successful project where the working environment has been improved and the health and safety of workers ensured. I have worked as a Ventilation trainee, Shaft Ventilation officer, Sectional Ventilation Officer, Shaft Ventilation Engineer and most recently ASEA/Africa Specialist Ventilation Engineer.

Jaco Kok


Senior Ventilation Consultant
Entech Pty Ltd
Jaco has been working in the metalliferous mine ventilation discipline for over 17 years in positions ranging from Assistant Ventilation Officer to Senior Ventilation Engineer.
Jaco has experience in the ventilation layouts of scattered mining, board and pillar, sub-level open stoping and block caving operations.
In 2005 he completed his South African Chamber of Mines Certificate in Mine Environmental Control/Occupational Hygiene and in 2010 he completed his Graduate Diploma in Mine Ventilation at the University of New South Wales.
Jaco is now working as a Senior Ventilation Consultant for Entech Pty Ltd where he provides advice on long-term ventilation planning and technical ventilation challenges for sub-surface applications.

Katie Manns


Ventilation Engineer
BBE Consulting (Australasia)
Katie is a mining engineer with over 6 years of operational and consulting experience in the underground mining industry.  Katie holds a bachelor’s degree [honours] from the WA School of Mines, an underground shift supervisor’s certificate and an emergency response certificate three.  Prior to joining BBE as a ventilation engineer, she worked for Newmont’s Tanami and Jundee underground operations.  At Newmont, she held the positions of ventilation engineer, drill and blast engineer and scheduling engineer amongst others.

Dr. Michael Tuck



Associate Professor of Mining Engineering
School of Engineering and Information Technology
Federation University Australia
Ballarat, Victoria
Michael is Associate Professor of Mining Engineering within the School of Engineering and Information Technology at Federation University Australia (formerly the University of Ballarat). Prior to that Michael was a Research Fellow in the Department of Mining Engineering at the University of Nottingham in the UK. Michael holds a Bachelor of Science (Honours) and a PhD from the University of Nottingham in the UK. Major research interests include; Mine ventilation, heat and mine climate, blasting, water demand management and numerous other areas. Member of the Australasian Institute of Mining and Metallurgy, Society of Mining Engineers, Mine Ventilation Society of Australia and the Society of Mining Professors. As well as teaching and research duties at the University has undertaken a wide range of ventilation consultancies in a number of countries.


Leon van den Berg

COMMITTEE MEMBERLeon van den Berg #

Senior ventilation consultant
BBE Consulting (Australasia)
Western Australia
Leon has more than 12years operational and consulting experience in the mining industry. He has worked on mine ventilation projects for both hard rock and coal mining industries. Leon holds a graduate diploma in mine ventilation from University of New South Wales and statutory coal ventilation officer’s ticket.


Duncan Chalmers


Senior Lecturer
School of Mining Engineering
University of New South Wales
Duncan Chalmers is a Senior Lecturer in the School of Mining Engineering. His research interests include Mine Explosives, Mine gas management, detection and analysis, Mine Ventilation, Respirable dust detection, and analysis. He is the Chairperson for the Australian Mine Ventilation Conference, Member of the International Society of Explosive Engineers, The Australasian Institute of Mining and Metallurgy, a Fellow of the Institute of Quarrying Australia and has extensive teaching mining and research experience.


Deon Esterhuizen

 doen-esterhuizenCOMMITTEE MEMBER

Inspector of Mines – South | Mine Safety and Health
Department of Natural Resources and Mines
I currently fulfill the role of Inspector of Mines in accordance with legislative requirements within Queensland. I have been working for the Department of Natural Resources and Mines since 2013. In my current role, I audit, inspect and investigate compliance with mining legislation and prepare investigation reports into accidents and incidents. I am also involved in auditing of metalliferous mine ventilation circuits throughout Queensland and previously worked as a Senior Mine Ventilation Engineer in underground metalliferous mines and as Planning Engineer at a tunneling project.
I have experience across various mining engineering disciplines and hold certified practicing quarry manager (CPQM) certification with the Institute of Quarrying Australia (IQA). I hold Fellow grade membership of the IQA and membership of the AusIMM. My tertiary qualifications include Graduate Diploma Mine Ventilation, National Diploma Metalliferous Mining, Master of Engineering Science (Mining Industry Management), and Master of Mining Engineering (Mine Geomechanics).


Eric Williams


Principal Consultant
BBE Consulting (Australasia),
A mining engineer with more than 40 years’ experience in the field of mine ventilation and cooling.  Has a wealth of operational experience gained working for Barrick Gold Corporation, Olympic Dam, Emperor Gold Mine, Elura Mine, and Goldfields of South Africa.  Career as a ventilation engineer has taken him to sites in Australia, Canada, South Africa, United Kingdom, Fiji, Saudi Arabia and PNG.  Skills include strategic mine ventilation planning, ventilation modeling, primary and secondary ventilation design, fan selection and specification. Also, presents ventilation lectures at the University of Western Australia. Previous position was that as Principal Ventilation Engineer for Barrick Asia Pacific. Presently Principal Ventilation Engineer for BBE Consulting (Australasia)