Our Team

Global Manager

Tarrant Elkington

Regional Manager – Africa

Bill McKechnie

Consulting Manager Software

Gary Pattenden

Technical Product Manager

Phillip Pettit

Software Development Manager

Jeremy Martin

Executive Consultant

Allan Earl

Principal Consultant

Oscar Rondon

Principal Consultant

Michael McMahon

Principal Consultant

Matthew Cotterell

Principal Consultant

Frank Blanchfield

Principal Consultant | Product Owner Reconcilor

Rayleen Hargreaves

Senior Software Developer

Michael Huynh

Senior Software Developer

Hayley Miller

Senior Geostatistician

Tuyet Tran

Senior Software Developer

Wei Xu

Senior Test Analyst

Sumalatha Konda

Product Manager (Supervisor and Training)

Anthony Cook

Consultant

Ian Roach

Consultant

Lisa Gunbina

Consultant

Andrew Scott

Software Developer

Lukmaan Davahir

Software Developer

Jeremy Siao

Client Relationship Manager

Shannon Alliss

Customer Support Officer

Ross van der Watt

Operations Support Manager

Jodeane Calitz

Senior Operations Support Officer

Ann-Marree Clarke

Marketing and Communications Coordinator

Caitlyn Earl

Operations Support Specialist

Michelle Buchan

Accountant

Odette Heinrich

Systems Coordinator

Marinda Meyburg

Marketing and Communications Specialist

Kristy Marshall

Principal Consultant

Chris Jones

Global Manager

Tarrant Elkington

Global Manager

Bio & CV
Articles
Video
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Tarrant has 13 years of consulting experience; specialising in mining strategy selection and providing solutions to unique and/or complex mine planning problems. This is supported by a PhD in mine optimisation. He has been involved in over 200 studies in Australia, South America, North America, Africa, Europe, and Asia; across precious metals, base metals, industrial minerals and iron ore, and for both open pit and underground mining methods. As Global Manager of Snowden, Tarrant is responsible for the strategy and operations of the Snowden business. Tarrant is passionate about improvement and strategy; to find a better way to do things. His particular strengths are a focus on the global system, and ability to communicate complex concepts in a simple way to a range of stakeholders.

Publications:

2016 Can the Theory of Constraints Guide the Next Wave of Mining Productivity Improvement? Elkington, T. AusIMM Bulletin August 2016
2016 Weathering the Perfect Storm: How Mining Consultants can Survive the Downturn, Elkington, T. AusIMM Bulletin April 2016

See All

2014 Application of the Theory of Constraints to Strategic and Tactical Mine Planning, Finch, A. and Elkington, T. Strategic Mine Planning Conference 2014
2013 The Use of Geometallurgical Relationships in Process Route Selection and Mine Plan Optimisation for the Dutwa Nickel Project, Elkington, T. Lorenzen, L. and Czerny, C. Geomet 2013
2013 An Automated Approach to Generating Haul Roads, Hill, S., Bates, L. Bates, Cooper, A., Elkington, T. World Mining Congress
2013 Optimising a Combined Open Pit and Underground Strategic Plan, Roberts, B., Elkington, T. van Olden, K., Maulen, M. Mining Technology
2012 Caving Outline Optimisation, Elkington, T., Bates, L., and Richter, O., MassMin Conference 2012
2012 Real Options Value Optimisation, Elkington, T., and Gould, J., Project Evaluation Conference 2012
2012 Strategic Optimisation at Sierra Rutile – a case study in maximising project value, P Myers, T Elkington and S Wonday, Project Evaluation Conference 2012

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Regional Manager – Africa

Bill McKechnie

Regional Manager – Africa

Bio & CV
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Bill is a geologist with 35 years’ experience in diamond exploration and mining, including 32 years with Anglo American and De Beers and eight years as head of De Beers global exploration activities. Bill was directly involved in the discovery and development of four new diamond mines in southern Africa and participated in a number of kimberlite resource sampling and evaluation projects and mine feasibility studies in Africa, North and South America, Europe and Australia.

Bill served as a director of De Beers Consolidated Mines Limited from 2002 to 2006 and as Chairman and/or director of a number of other De Beers Group and associate companies during his career. Since retiring from De Beers in 2006, Bill pursued personal interests before commencing private diamond industry consulting work in early 2009. Bill joined Snowden in September 2009 and since then has directed a number of independent technical reviews and Competent Persons’ Reports for a number of diamond and other commodity projects.

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Consulting Manager Software

Gary Pattenden

Consulting Manager Software

Bio & CV
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Gary has over 23 years’ experience in the software industry, having worked in a number of domains including accounting, medical, mining and public transport. Having a solid technical background, Gary has been involved in the development of numerous software systems and over 10 years mining industry experience. He has also been involved in all stages of the software development lifecycle, including business analysis and requirements capture. Gary has filled several leadership roles and has supplemented his experience by completing a MBA. Gary leads the Reconcilor consulting team globally for Snowden; ensuring quality is maintained at the highest standard. He has played a key role in the requirements analysis and project management of a number of Reconcilor projects since commencing with Snowden in early 2009.

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Technical Product Manager

Phillip Pettit

Technical Product Manager

Bio & CV
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Phill is a technology professional with experience in the analysis, architecture, and development of software products and bespoke systems. Phill’s experience has included technology consulting in mine reconciliation, leading development efforts in mine scheduling and other domains, solution architecture, analysis and product management. Phill currently has technical product management responsibilities for products with capabilities in data integration, analytics, machine learning and business intelligence.

Publications:

Measuring the effectiveness of change through best practice reconciliation, in Proceedings from Ninth Open Pit Operators’ Conference 2016, AusIMM. Hargreaves, R, Pattenden, G and Pettit, P, 2016.

Software Development Manager

Jeremy Martin

Software Development Manager

Bio & CV
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Jeremy is a software development manager with over 20 years of software and database development experience. Jeremy has worked in a wide range of industries helping clients to develop systems that improve the management and speed of business processes, capture data more accurately, and provide a level of analytics to help their businesses expand.

The projects Jeremy has worked on have allowed him to take on team lead, client management, and advisory roles for clients such as BHP Billiton Iron Ore, Qantas and the Catholic Education Office.

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Executive Consultant

Allan Earl

Executive Consultant

Bio & CV
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Allan is a mining engineer with over 35 years’ experience in underground mine design, planning and operations in Australia and Africa. During this time he has held senior technical and management positions. Since joining Snowden in 1996, he has consulted on a large number of mining projects in several countries. His areas of expertise include mining feasibility studies at all levels, underground mine planning and design, reserve estimation, mine operations management and project management. He has a strong capability in strategic planning and optimisation of underground orebodies.

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Principal Consultant

Oscar Rondon

Principal Geostatistician

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Oscar is a skilled geostatistician with over 18 years of experience in the application of specialised geostatistical techniques in the field of mineral resource evaluation.

Publications:

Machine Learning – Limiting Bias and Validating for Value (2019)
Landscape Evolution and Geochemical Dispersion of the DeGrussa Cu-Au Deposit, Western Australia (2018)
Resource Model Dilution and Ore Loss: A change of suppport approach(2017)

See All

Application of Localised Multivariate Uniform Conditioning in an Iron Ore Deposit (2015)
On Localising Uniform Conditioning Estimates (2014)
A Practitioners guide to recoverable resource estimation using localised uniform conditioning (2014)
Assessing uncertainty in recovery functions: A practical approach (2012)
Using Quantile Regression in Cloud transform simulation (2011)

Principal Consultant

Michael McMahon

Principal Consultant

Bio & CV
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Mike is a Principal Consultant with over 30 years of software development experience in the mining industry, having previously worked at WMC Resources in various roles.

Since joining Snowden in 2000, Mike has worked on several projects including the development, implementation and support of geological database management systems, resource and reserve database systems and various other applications. His areas of expertise include SQL server development, .NET application development, PowerApps development and acQuire geological database management.

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Principal Consultant

Matthew Cotterell

Principal Consultant

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Matthew is a mining engineer with over 20 years mining industry experience. Over this time he has been engaged in numerous projects at all study levels for a wide variety of commodities. These projects involved:

pit, stockpile and dump optimisation and practical designs including backfill and in-pit tailings options;
cut-off grade optimisation including blended products;
tactical and strategic scheduling to balance combinations of maximising net present value, equipment and grade/ore type blends;
equipment selection and productivity studies including haul optimisation;
contract mining evaluations; and
cost estimations.

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Principal Consultant

Frank Blanchfield

Principal Consultant

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Frank is a mining engineer with more than 25 years surface mining industry experience, with the last ten years in a consulting role. He has a strong analytical skill base with real-time mining data collection systems and mine optimisation, design, cost modelling and scheduling software.

His consulting expertise includes project financial analyses, Competent person sign-offs. His consulting work includes project management for iron ore, gold, bauxite and nickel laterite mining studies at the scoping, feasibility and prefeasibility level, Ore Reserve audits and specialised technical reports (NI 43-101, Chapter 18).

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Principal Consultant | Product Owner Reconcilor

Rayleen Hargreaves

Principal Consultant | Product Owner Reconcilor

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Rayleen is a mining geologist with over 20 years’ experience in the resource industry. Rayleen has been involved with onsite implementation and administration of Reconcilor for the past 14 years and has significant expertise in mine site reconciliation.

Utilising her strong domain expertise, Rayleen is the Product Owner of Reconcilor, providing a leadership role within the Research and Development team, ensuring delivery of software features and functionality that meets the needs of key stakeholders.

Publications:

Measuring the effectiveness of change through best practice reconciliation, in Proceedings from Ninth Open Pit Operators’ Conference 2016, AusIMM. Hargreaves, R, Pattenden, G and Pettit, P, 2016.
Universal Reconciliation – A Multi-Disciplinary Approach Across the Entire Mining Value Chain to Identify Loss of Value and Maximise the Operational Performance, in Proceedings Ninth International Mining Geology Conference 2014, AusIMM. Hargreaves, R and Morley, C, 2014.

See All

Mining reconciliation – an overview of data collection points and methodologies, in AusIMM Monograph 23 – Mineral Resource and Ore Reserve Estimation, Chapter 8, April 2013.
Technology drives improvements in mine reconciliation, in the AusIMM Bulletin, April 2013.
Mine reconciliation – for better or worse! In Proceedings, the Canadian Institute Mining Metallurgy and Petroleum (CIM) Conference and Exhibition, Vancouver 2010 Hargreaves (nee Riske), R, de Mark, P, Helm, S and Morley, C, 2010.
Standardising the Reconciliation Factors required in Governance Reporting, in Proceedings Seventh International Mining Geology Conference 2009, pp 127-139 (The Australasian Institute of Mining and Metallurgy: Melbourne). Hargreaves (nee Riske), R, Fouet, T, Morley, C, Conti, D, Cook, A and Centofanti, J, 2009.
Snowden’s reconciliation software – A case study from Telfer, in Proceedings World Gold 2007 Conference, pp 75-82 (The Australasian Institute of Mining and Metallurgy: Melbourne). Hargreaves (nee Riske), R, Froud, J, Morley, C and Gotte, J, 2007.

Senior Consultant

Jennifer Claughton

Jennifer Claughton

Senior Consultant

Bio & CV
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Jennifer is an experienced Senior Consultant with a demonstrated history of working in the mining & metals industry. Skilled SQL, Databases, IoT solutions, BI reporting, Data Warehousing, .NET Framework, and Visual Studio. She is a strong consulting professional with a Certificate IV focused in Project Management Practice from PM Partners. Within the mining industry Jennifer has worked with a number of commodities including gold, uranium, diamond, coal and iron ore.

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Senior Software Developer

Michael Huynh

Senior Software Developer

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Michael has over a decades’ worth of software development experience spanning across various industries including: defence, payroll, courtroom, marine and geospatial.

He has been a key contributor to many commercial product features which have met and at times exceeded customer expectations. Technical versatility is one of his greatest strengths as he is a capable polyglot and able to deliver software solutions without the underlying choice of technological stack being an impediment. He maintains an interest in emergent software development technologies and practices which leverage cloud-based infrastructure to deliver fast and reliable solutions.

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Senior Software Developer

Hayley Miller

Senior Software Developer

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Hayley is a software developer with 14 years’ experience across the technologies and mining industries. Hayley has worked on a wide range of applications for the mining industry including both custom and commercial software solutions and has been involved in all stages of the software development lifecycle. Her areas of expertise include front end development, Angular, WPF, .NET framework and SQL Server.

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Senior Software Developer

Paul Fox

Paul Fox

Senior Software Developer

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Paul Fox has over 18 years’ experience in IT, developing a wide variety of systems including Windows applications, Web applications, Silverlight, Web Services, Business to Business solutions (BizTalk Orchestrations) and Identity and Access Management (Microsoft Identity Integration Server).

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Senior Geostatistician

Tuyet Tran

Senior Geostatistician

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Tuyet had been working with projects related to univariate and multivariate conditional simulation, uniform conditioning and global change of support. Tuyet has also been involving with the developing of Snowden Supervisor software by providing code for model validation, global change of support, Local Kriging Neigbourhood Optimisation, Sequential Gaussian and Sequential Indicator Simulation and Kriging Neigbourhood Analysis.

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Senior Software Developer

Wei Xu

Senior Software Developer

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Wei has broad experience in IT industry. Since joining Snowden Technologies, he has been working on Snowden’s geostatistics software.

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Senior Test Analyst

Sumalatha Konda

Senior Test Analyst

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Latha is a Certified Test Professional with over 15 years’ experience in IT. Proficient in Software Development Life Cycle (SDLC), and all phases of Software Testing Life Cycle (STLC) from test planning to defect tracking and managing defect lifecycle. Latha is also experienced in designing Test Plans, Test Scenarios, Test Scripts and Test Procedures. Latha has worked on web and client / server application testing, ERP implementation (Oracle Retail, Microsoft Dynamics) and post go live testing.

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Product Manager (Supervisor and Training)

Anthony Cook

Product Manager (Supervisor and Training)

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Anthony is a geologist with a strong technical background in resource estimation and mine operations (open pit and underground), developed since 2010. His experience spans nine geographically and geologically separate precious metal deposits and several mineralisation styles, including alluvial, supergene oxide and in-situ hard rock. While working with Gold Fields Ltd, Anthony was strongly involved with corporate technical innovation and business improvement projects including mine to mill reconciliation and optimisation. His experiences, which range from international secondment to private conference with industry leaders, has given Anthony a broad exposure to the mining industry.

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Consultant

Ian Roach

Consultant

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Ian has over 15 years’ experience delivering IT and software development projects across a Wide range of Industries including Government,Mining,Public Transport, Visualisation and Insurance. He has a solid technical background across a wide range of software languages and has been involved in all stages of the software development lifecycle. Since joining Snowden Technologies, Ian has worked on several projects including the development and support of Reconcilor and Regulator products.

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Consultant

Lisa Gunbina

Consultant

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Lisa has over 12 years experience in the software industry working with diverse technologies. She has a strong technical background and is familiar with a number of development tools and methodologies. She has expertise in all aspects of the software development lifecycle, focusing predominantly on requirements analysis and quality assurance. Lisa has acquired a variety of technical skills, including a number of different databases and development frameworks. Currently, Lisa has a software consultant role in Reconcilor and Regulator project teams at Snowden.

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Consultant

Andrew Scott

Consultant

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Andrew is a senior software engineer with 15+ years of experience. Andrew has worked with various industries supporting multiple technologies, software solutions and databases including .NET, MS SQL and Angular. Andrew has been involved with the redevelopment of the Otracom Tyre Management System.

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Software Developer

Lukmaan Davahir

Software Developer

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Since graduating in 2004 from Murdoch University, Lukmaan has been working as a Software Developer for many companies in Perth. He has development experience varying from solo projects to largest software house in Western Australia.

Since joining Snowden in 2018, he has been an important member of the Reconciler upgrade project.

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Software Developer

Jeremy Siao

Software Developer

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Jeremy is a fresh postgraduate from Curtin University. Jeremy is engaged in the development and maintenance of Snowden’s software upgrade efforts. He is familiar with a variety of current and emerging technologies, and has worked on various projects including Android, iOS, and Web development.

Publications:

Siao Him Fa Jeremy Shane. A Brokering Approach to Federation Data in a Semantic Web Environment. Curtin University, School of Earth and Planetary Sciences. Thesis (PhD), 2018.
Siao Him Fa Jeremy, West Geoff, McMeekin David, and Moncrieff Simon. Brokered Approach to Federating Data using Semantic Web Techniques, The Eighth International Conference on Advanced Geographic Information Systems, Applications, and Services, GEOProcessing 2016, Venice, Italy.
Siao Him Fa Jeremy, Reed Tristan W, Tan Chet, West Geoff, McMeekin David, Moncrieff Simon, and Cox Simon. Search and Orchestration of Data and Processes in a Federated Environment. The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XL-4-W7, 35-39, 2015.

Client Relationship Manager

Shannon Alliss

Client Relationship Manager

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Shannon is an experienced Client Relationship Manager focusing on training and software at Snowden. Skilled in Administration, Management, Project Management, Database Administration, and Event Planning. Strong sales professional with a Graduate Diploma in Education from Murdoch University.

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Customer Support Officer

Ross van der Watt

Customer Support Officer

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Ross is a Customer Support Officer at Snowden. He is responsible for providing our customers with Account Management and Supervisor software support.
Ross has been part of the Snowden team since 2008.

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Operations Support Manager

Jodeane Calitz

Operations Support Manager

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Jodeane leads the Operations Support team with many years’ experience across a diverse range of support functions, ensuring operational efficiency.

Prior to joining Snowden in 2011, she gained experience in both the financial and accounting sectors working for ABSA Bank and PKF Auditors and Accountants in various roles including Sub-Branch Management, HR advisor and Payroll Administrator.

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Senior Operations Support Officer

Ann-Marree Clarke

Senior Operations Support Officer

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Ann-Marree has over 10 years’ experience as an Operations Support Officer at Snowden. Responsibilities include project management support and accounts payable processing.

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Marketing and Communications Coordinator

Caitlyn Earl

Caitlyn Bates

Marketing and Communications Coordinator

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Caitlyn is a Marketing Coordinator working at Snowden since graduating with a Communications degree from ECU in 2006. She is responsible for supporting the growth of the company through building brand awareness and effective marketing of Snowden’s products and services.

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Operations Support Specialist

Michelle Buchan

Operations Support Specialist

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Michelle has 14 years administration experience in the mining industry. Responsibilities include travel management and project management support.

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Accountant

Odette Heinrich

Accountant

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Odette started working at Snowden in 2003. She qualified as an Accountant in 2009. She is responsible for the day-to-day running of the office and look after the accounting side of the business.

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Systems Coordinator

Marinda Meyburg

Systems Coordinator

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Marinda has been the Receptionist at Snowden since 2011.

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Marketing and Communications Specialist

Kristy Marshall

Marketing and Communications Specialist

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Kristy Marshall is a Marketing Strategy + Social Media specialist, graduating with a Double Bachelor Degree in International Business and Communications. With experience in marketing for Education + Technology companies in Sydney, Kristy has led the evolution + optimisation of several international marketing teams, with a focus on innovation and customer satisfaction. With her roles comprising high-level marketing strategy as well as implementation, her achievements include growing her departments revenue 10-fold over a period of 18 months, building a team of 12 employees in the same period across two countries, to the rollout of a Salesforce instance, and organising 600+ person, 8 stream conferences with international delegates. She’s all about smart marketing and personalising social media to build brands that customers want to engage with.

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Email:moc.p1600688002uorgn1600688002edwon1600688002s@lla1600688002hsram1600688002.ytsi1600688002rk1600688002

Principal Consultant

Chris Jones

Principal Consultant

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Chris has worked in the mining industry since graduating in 2006. Following his initial training with Rio Tinto Iron Ore in Australia, Chris moved to Snowden Consulting, initially in Australia then in South Africa gaining international mining experience of diverse projects including; Project management and completion of Scoping, Pre-Feasibility and Bankable Feasibility Studies, Independent Technical Reviews and Due Diligence studies for various ore deposits and providing on-site mine planning and mentoring to engineers at underground and open pit operations.

Chris then joined Discovery Metals in Botswana as a Senior Engineer implementing various projects including; Surpac mine planning software and training of Botswanan engineers, full site reporting systems, blast design reviews and the start-up of a new open pit.

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Executive Consultant

Matt Mullins

Matt Mullins

Principal Consultant

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Matt is Executive Consultant at the Snowden Group, a global mining consulting company.

Matt has +35 years experience in most major commodities, across the value chain, and in many countries. He built on a solid background in gold and platinum with stints on the South African Gold Mines, in rock engineering research, as an analyst on the JSE, and in running his own consulting company, to a 16 year career with BHP, and latterly back to independent consulting.

Show all Matt’s key achievements at BHP

At BHP Matt’s key achievements were:

Led the global geological, mining engineering, geometallurgical and business planning functions
Designed and implemented the global Productivity and Business Improvement programme, which to June 2018 had yielded an additional US$14bn of annual free cash flow;
Developed the Resource Growth Reviews for each commodity group, which looked at future strategic growth through Greenfields, Brownfields and Acquisition;
Designed and led the Group-wide Brownfields Exploration portfolio, which doubled the Group’s resource base in six years;
Helped to develop and implement the BHP Capital Investment System, including project and review standards, procedures, guidelines and toolkits,
Led ~25 major capital project reviews across multiple commodities and geographies.
Was a member of the Chief Operating Officers Council for BHP Southern Africa, where he helped to direct the regional strategic direction of the Company.

Prior to BHP Matt was Mineral Resource Manager for Randgold Resources, based in Mali, was Consulting Geologist (Mines) for Rand Mines, was CEO of a Minerals Consulting Company, a Mining Analyst on the JSE, a Mine Geologist and an Exploration Geologist.

Matt has led or participated in numerous acquisition and divestment studies, across gold, PGM’s, base metals, and bulk minerals.

Matt is a Competent Person/Competent Valuator in most major commodities and has worked on projects and operations throughout the globe.

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Latest News and Articles

Interview Series: Introducing Matt Mullins
We are excited to welcome Matt Mullins to the Snowden team, as an Executive Consultant based in London, UK. Can... View More
Lanzamiento de Supervisor 8.13
Nos complace anunciar el lanzamiento de la versión 8.13 de Supervisor con la implementación del método de Simulación Secuencial Gaussiana... View More
Announcement: Snowden acquired by Datamine
Today, we are excited to announce that Snowden has been acquired by Datamine, a wholly owned subsidiary of Vela Software, an operating group... View More

Interview Series: Introducing Matt Mullins

Announcement: Snowden acquired by Datamine

View all news