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Home » Commodity Experience » Bauxite and Alumina
A B C D E F G H I K L M N O P R S T V W Y

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Photo of Mr Rodney Elvish Expert Witness
Mr Rodney Elvish Expert Witness
MetallurgistB E EnterprisesMetallurgist

Rod is a Consultant Metallurgist and Company Director who has extensive operating and consulting experience in metallurgy and mineral processing. He is Chair of the Mineral Processing Commission of the International Mineral Processing Council (IMPC).

He undertakes a wide variety of technical and commercial assignments, often combining his broad production, management, director, evaluation and development experience to achieve project specific solutions. He takes a holistic approach, matching the metallurgy to site, geological, mining and corporate factors. A similar approach is taken to evaluating new technologies.

Areas of specialisation include:

  • project management
  •  complex polymetallic metallurgy including differential flotation
  • gold, other precious and base metals recovery
  • iron ore beneficiation
  • new process evaluation
  • gravity separation
  • liquid/solid separation

Rod consults to operations staff, company boards, financiers and lawyers. He manages feasibility studies, undertakes valuations, independent reports and advises on mergers and acquisitions.

Assignments undertaken include:

  • metallurgical evaluation of exploration projects
  • managing feasibility studies
  • Assessor, Supreme Court of Queensland
  • on site plant trouble-shooting and optimisation
  • evaluation of new processes and technologies
  • independent technical reports and expert witness assignments
  • financiers’ completion tests and technical audits
  • testwork design, supervision and interpretation of results
  • flowsheet development, costing and equipment selection

Major project works include the development of major iron ore and manganese projects in West Africa, advanced tungsten processing, project management of the Browns polymetallic project (NT), the assessment and development of resin based gold and cyanide recovery technologies and new processes for recovering gold from refractory gold ores. As Director and later Chairman of Allstate Explorations NL he was extensively involved in bringing the Beaconsfield Gold Mine in Tasmania back into operation.

Rod is a past President of the Australasian Institute of Mining and Metallurgy and a Councillor of the IMPC.

Qualifications:
  • FRMIT(PrimaryMet) 1970, DipGeoSc(MinEc) Macquarie 1984, Prof Cert in Arb Adelaide 2003
  • MMICA, Hon FAusIMM (CP), FIMM, FAICD
Specialities:
  • Mineral Processing & Metallurgy
  • New Technology Evaluation and Auditing
  • Due Diligence Studies
Areas of Practice:
  • Independent expert valuations
  • Metallurgy and mineral processing
  • New technology, research and development
  • Project – Management
  • Strategic planning including company acquisition
  • Tailings and waste management
  • Technical audit and due diligence studies
Commodity Experience:
  • Bauxite and Alumina
  • Base Metals
  • Gold, Silver
  • Iron Ore, Manganese, Chrome
  • Nickel and Cobalt
  • Sn-W-Ta-Nb Group
  • Uranium
Regional Experience:
  • Australia – Northern Territory
  • Brazil
  • PNG

L

Photo of Mr Michael Lawrence Expert Witness
Mr Michael Lawrence Expert Witness
GeologistMINVAL Associates Pty LtdGeologist

Mike Lawrence

Mike is an economic geologist with some 48 years’ international Minerals Industry experience, who provides independent valuations of exploration and mine properties, project technical audits and dispute resolution solutions.  He specialises in due diligence and mineral property technical appraisals and valuations in an ADR or litigation context, involving a very wide range of commodities [eg, coal, iron ore, base metals, nickel, gold, bauxite, phosphate, aggregates, industrial minerals, dimension stone and gemstones.

He has been a mining and geological consultant to the metalliferous, coal and quarrying industries as CEO of international resource consultancies’ regional operations [eg, the French Government’s BRGM/SEREM and the UK Robertson Group], until 1991 when he founded Sydney-based Minval Associates.

He has been widely recognised by the Industry as an independent, highly ethical expert (MICA Medal, Honorary Fellow AusIMM & FAIG, 1999, President AusIMM and its Beryl Jacka Award recipient).

He authored 99 technical papers (to end 2013), particularly on aspects of valuation, due diligence, risk, ethics and professional liability.  He has made major contributions to AusIMM’s VALMIN Code since 1991 and development of AusIMM/MICA Alternate Dispute Resolution Scheme.  Appointed 2008 to NSW Ministerial Land Access Arbitration Panel (reappointed to June 2017).

Qualifications
  • BSc(Hons1) UNSW 1966,
  • GradDipPublicSectorMgt NSWIT 1985,
  • CertArb&Med 2000,
  • MAIMVA(CMV), MMICA, FAusIMM(CPGeo), FIMM(CEng), FAIG, MIAMA
Specialities
  • Technical Assessments, Audits and Valuations
  • Exploration Strategy, Planning & Management
    Alluvial & Hard Rock Geology
Areas of Practice:
  • Exploration – Planning and Management
  • Exploration – Property Appraisal
  • Government and public relations
  • Independent expert valuations
  • Resource / Reserve estimation (inc. geostatistics)
  • Technical audit and due diligence studies
Commodity Experience:
  • Bauxite and Alumina
  • Base Metals
  • Diamonds
  • Gemstones
  • Gold, Silver
  • Iron Ore, Manganese, Chrome
  • Nickel and Cobalt
  • Sn-W-Ta-Nb Group
Regional Experience:
  • Australia – Western Australia
  • Indonesia
  • New Zealand
  • Pacific Islands
  • Philippines
  • PNG
  • S E Asia (Malaysia, Thailand, Vietnam, Myanmar)

M

Photo of Mr Graeme Miller Expert Witness
Mr Graeme Miller Expert Witness
MetallurgistSinclair Knight Merz Pty LtdMetallurgist

With over 25 years’ experience in process plant operations, design and commissioning, Graeme has participated in the development of the minerals processing industry and the application of novel techniques to many problems. He is Process Manager for one of Australiaýs largest consulting engineering companies. He has a degree in Chemical Engineering and during the early part of his career was involved in the operation of plants for treating: gold, uranium, pyrite, sulphuric acid, diamond recovery, coal preparation and coal utilisation. His design capability covers all of these fields as well as being recognised as one of the leaders in the field of copper leaching solvent extraction and electrowinning. He is the leader of a team of process engineers who have made significant contribution to the advancement of various aspects of minerals processing and hydrometallurgy.
A fellow of the AusIMM with Chartered Practicing Status, member of SAIMM and of the Coal Preparation Society, Graeme has published over 40 technical papers in coal preparation and minerals processing. SKM provides services for the study, development, execution and commissioning of mineral processing plants and mining projects. Clients have included all major Australian mining companies and a wide cross section of the industry, in a variety of commodities.

Qualifications
  • BE(Chem) Queensland 1974 PREng (Chem) Queensland
  • MMICA, FAusIMM (CP), MSAIMM, MCoalPrepSoc
Specialities
  • Mineral Processing
  • Feasibility Studies
    Project Execution & Management
    Solvent Extraction
    Heap Leaching
Areas of Practice:
  • Coal washing
  • Flowsheet development and plant design
  • Heap Leach
Commodity Experience:
  • Bauxite and Alumina
  • Base Metals
  • Diamonds
  • Gold, Silver
  • Uranium
Regional Experience:
  • Australia – Queensland
  • Australia – Western Australia
  • Middle East (inc. Turkey, Cyprus)
  • S E Asia (Malaysia, Thailand, Vietnam, Myanmar)

 

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