Keynote Speakers

Keynote Speakers

Andrew Lane 19052020Andrew Lane

Company: Deloitte
Designation: Africa Energy and Resources Leader, Deloitte Africa


  • Andrew is a senior partner at Deloitte Africa, where he leads the Energy and Resources practice in Africa, leads the Monitor Deloitte corporate and business unit strategy capability and leads the CEO programme at the Deloitte Executive Institute.

  • Andrews professional career spans 33 years – 14 in Industry, mainly in general management in industrial companies; and 19 in strategy and operational consulting

  • Andrew joined Deloitte as a Director following Deloitte’s acquisition of Monitor. He had joined Monitor as a partner, after being a partner and founding member of North Road Consulting

  • Andrew has led strategy, operational improvement, organization redesign and implementation projects in several industries. Andrew has specific expertise in energy, resources, aviation, logistics and manufacturing.

  • His consulting experience spans operational turnarounds, performance improvement, and strategy development for private, listed and parastatal companies. His strategy expertise spans portfolio strategy, corporate and business unit strategy, growth strategy, and sustainability strategy.

  • Prior to founding North Road Consulting, Andrew enjoyed a successful career at Bain & Company in Johannesburg and London. During this time he led client assignments in various industries, including mining, car rental, utilities, revenue collection, general industry and media.


Winfred  Assibey-BonsuWinfred Assibey-Bonsu

Company: Gold Fields Corporate Office, Perth
Designation: Group Geostatistician and Evaluator

Winfred Assibey-Bonsu is the Group Head Geostatistician and Evaluator, Corporate Technical Services at Gold Fields Corporate Office, West Perth, Australia, with PhD from University of Witwatersrand, Johannesburg; EDP, Wits Business School; MSc from University of Zambia; Post-Graduate Diploma and BSc (Hons) from the UST School of Mines (now UMaT), Ghana. Winfred’s experience spanning over 30 years in the mining industry includes mineral resource assets assessment for mining companies as well as new business associated work including prospects in South Africa, Australia, South America, Zaire, Ghana, Ivory Coast, Philippines, Ethiopia, Tanzania, Cuba, Dominican Republic, Russia, Finland, Romania, Papua New Guinea. Winfred is currently the Chairman of the International APCOM Council.

Themba MoyeniThemba Moyeni Mkhwanazi

Company: Kumba Iron Ore
Designation: Chief Executive Officer


Themba is the CEO of Kumba Iron Ore and a member of the Group Management Committee (GMC) at Anglo American. Prior to joining Kumba, he held the position of CEO of Anglo American’s coal business in South Africa from May 2014 to 1 September 2016. He has extensive experience in the resources industry, including 20 years in his native South Africa, as well as in the USA and Australia.


Themba was a Managing Director of Huntsman Tioxide in South Africa until 2007 when he was appointed COO of Richards Bay Minerals, a joint venture between Rio Tinto and BHP Billiton.


In 2011, Themba was seconded to Rio Tinto’s Australian coal business, before taking up the role of Regional General Manager for the Americas in 2012.

Leonardo MachadoLeonardo Machado

Company: Visagio Consulting
Designation: Managing Partner


Leonardo has over 17 years of experience. He is one of the co-founders and managing partners of Visagio Consulting. Has developed over 120 projects in management engineering, mainly focused on operations and supply chain management, business process reengineering and organizational design.


Has been working for industries such as Mining, Manufacturing, Oil & Gas, Logistics and Transportation, Retail, Tobacco, Steel, Banking, Chemical, Telecommunications and Services, with experience in projects in Australia, Bolivia, Brazil, Canada, Turkey, United States and New Caledonia. Has extensive experience working in the mining indsutry.


He holds a B.Sc. in Industrial Engineering from UFRJ (Brazil).


The main areas of expertise are: Logistics and Supply Chain Management, Statistical Forecasting, Simulation and Optimization.

He is the co-author of the book ”Optimising the Supply Chain”. He was the lead developer of the ARRISCA Simulation Tool – Spreadsheet Simulation Add-in. Leonardo Machado is fluent in English, Portuguese and, to a lesser extent, Spanish.

Leonardo MachadoErkan Topal

Company: Curtin University
Designation: Professor
Qualifications: PhD


Prof Erkan Topal is a mining engineer with a Master of Science Degree (MSc) in Mineral Economics, MSc and PhD. Degree in Mining Engineering from Colorado School of Mines in U.S.


He has worked in several different countries on different projects and positions including U.S, Canada, Sweden, Turkey, Kazakhstan and Australia. He has recently being seconded to Nazarbayev University, Kazakhstan as a founding dean where he has established a new School named School of Mining and Geosciences. He has also previously served for five years as Head of Mining Engineering Department at the WA School of Mines, Curtin University.


His main research interests are in mine planning and optimization, mineral and energy economics. He has been a principal investigator on numerous research projects. He is a world leading expert in the field of mine planning and optimization. Some of his internationally recognized research includes underground mine scheduling with stope boundary optimization, mine waste dump design with pit optimisation, Application of the Real Options in Engineering Design and Decision Making. Prof Topal’s work on optimum waste dump planning was the winner of the science and engineering prize at the 2015 Curtin Commercial Innovation Awards.


 He has recently organized and chaired the “28th International Symposium on Mine Planning and Equipment Selection - MPES 2019” conference in Perth and conference proceedings was published by Springer. He is in the editorial board of five scientific journals in the area of mining including editor-in-chief role for the International Journal of Mining, Reclamation and Environment Journal as well as being in the international advisory board of Journal of the Southern African Institute of Mining and Metalurgy (SAIMM) and has published well over 100 papers in reputed journals and refereed conference proceedings.