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Session 8C | Mine Closure, Rehabilitation and Environmental Risk Management

Iron Ore Conference
Wednesday, June 24, 2026
3:20 PM - 5:00 PM
Meeting Rooms 1, 2 & 3

Speaker

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Mr Jonathan MacRae
Founder And Principal Mining Engineer
Landform Logic

Evolving from engineered to geomorphic landform incorporating traditional values

4:05 PM - 4:20 PM

Biography

Professional mining engineer with 30 years of mining experience in Australia, working across open-cut and underground mining businesses across different commodities with 15 years in the ironore mines in the Pilbara region of WA.. i have work across mine technical services and closure and rehabilitation services for BHP and Mineral Resources Limited. In 2024 founded Landform Logic and is the principal mining engineer. I have been a member of AusIMM for 15 years.
Mr Jan Theiler
Principal Mining Engineer
B3 Mining Services Pty Ltd

Spontaneous combustion hazard assessment of carbonaceous shales in Pilbara iron ore mining operations

4:20 PM - 4:35 PM

Biography

Jan Theiler is a Principal Mining Engineer at testing and consulting services company B3 Mining Services Pty Ltd in Brisbane. He graduated with a bachelor’s degree in mining engineering from the University of Queensland. Jan is continuing to develop his expertise in specialist spontaneous combustion testing and analysis of coal, shale, waste rock, sulphide ores and concentrates. Results are used in the development of leading practice Principal Hazard Management Plans for industry.
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Ms Emma Trusz
Environmental Consultant
Okane Consultants

Optimising growth media ratios for open pit rehabilitation: early successes from the Yandi trial

4:35 PM - 4:50 PM

Biography

Emma Trusz is an environmental consultant based in Brisbane, Australia. She is a dynamic and multi-skilled professional with mining engineering expertise across various minerals, including surface coal, iron ore, copper, and manganese. With a proven track record of delivering successful outcomes in multiple roles and locations, Emma possesses a strong technical background and has diversified her expertise in the mining industry with experience as a business planning analyst and mine closure consultant. Her knowledge and skills in integrated mine planning enable her to collaborate effectively with internal and external stakeholders, driving optimal operational and environmental results. Emma is passionate about mine site rehabilitation, reclamation and revegetation, and is currently undertaking a Graduate Certificate in Environmental Science to further her technical knowledge.
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Session Chair

Q&A + Discussion (Session 8C)

4:50 PM - 5:00 PM

Biography

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