Executives


  • Tahirou Ballo

    GM LOULO-GOUNKOTO MINE COMPLEX

    A mining economist engineer with 21 years’ experience, mainly in Mali. Tahirou started his career as a short term planner with BHP Billiton at the Syama mine and served as mining superintendent from 1999 for Randgold at Syama. Tahirou was appointed to his current position as general manager of the Loulo-Gounkoto complex in 2015.
  • Chiaka Berthe

    GM OPERATIONS WEST AFRICA

    With a Master’s degree in geological engineering from the Malian National School of Engineering, Chiaka has more than 19 years’ experience in the industry. He is a member of the Australian Institute of Mine and Metallurgy and the Geostatistical Association, and was appointed to his current position as general manager operations West Africa in 2015.
  • Sebastiaan Bock

    GROUP GM FINANCE

    Sebastiaan is responsible for the management of the group’s operations financial functions and the group’s corporate finance management. He’s a chartered accountant with 14 years’ experience and has been with the group for six years.
  • Luiz Correia

    GM TONGON MINE

    Luiz is a metallurgist with 29 years’ experience in the gold mining industry, and has a BSc Eng as well as a BCom degree. He joined Randgold in 2005 and in 2006 was appointed operations manager at the Loulo mine. He was appointed general manager at the Tongon mine during its construction phase in 2010.
  • Joel Holliday

    GROUP EXPLORATION MANAGER

    Joel is a geologist with 18 years’ experience on exploration projects in Europe, South America and across Africa. He joined Randgold in 2004 and until recently, worked as exploration manager for West Africa following several years as exploration manager for the Loulo district in Mali, during which time the Gounkoto and Loulo 3 deposits were discovered. Joel has a BSc (Hons) Geology.
  • Willem Jacobs

    GM OPERATIONS CENTRAL AND EAST AFRICA

    With a BPL (Hons) and DCom, he has served as a director of listed and private companies in the areas of mining, engineering and manufacturing in Southern, Central and Eastern Africa for the past 19 years. He joined Randgold in 2010.
  • Adama Kone

    GM MORILA MINE

    Adama joined Randgold in 1996, responsible for grade control at the Syama mine. In 2000, he joined the mineral resources department at the Morila mine, becoming manager of the department in 2006. With a geological degree from the Malian National School of Engineering, he gained early experience as a field geologist for BHP Billiton Minerals Exploration. Adama has been the general manager of the Morila mine since 2011.
  • Mahamadou (Sam) Samaké

    GROUP REGIONAL MANAGER WEST AFRICA

    Sam was a professor of company law at the University of Mali, and was instrumental in writing the Malian mining legislation. He is the resident executive manager in Mali and is responsible for government liaison in West Africa and is the group’s West African legal counsel.
  • N’golo Sanogo

    GM MALI

    N’golo has a Master’s degree in economics from the National School of Administration of Bamako, Mali, as well as several business qualifications. He joined BHP Billiton Mali in 1995 and was appointed the management accountant at the Syama mine in 2001. In 2004 he joined Randgold as Mali financial controller and was appointed Mali general manager in 2009.
  • John Steele

    TECHNICAL AND CAPITAL PROJECTS EXECUTIVE

    John was responsible for the successful construction and commissioning of Randgold’s Morila, Loulo, Tongon and Gounkoto mines and led the development and commissioning of the Kibali mine in the DRC. He also continues to provide operational and engineering oversight to the group. John has a BSc (Hons) in Chemical Engineering and MBL (UNISA).
  • Ted de Villiers

    GROUP GM MINING

    A mining engineer, Ted has extensive experience in mining operations, mining contracting and consulting. He joined Randgold in 2010, with executive responsibility for the group’s rapidly expanding mining operations, tasked with ensuring a consistent production stream. Ted has an HNDP Mining (Metalliferous) and a Mine Manager’s Certificate of Competency (South Africa).
  • Tania de Welzim

    GROUP FINANCIAL MANAGER

    Having served as group financial controller, Tania was appointed to her current position in 2009. A Chartered Accountant with 16 years’ financial experience, 14 of these in the mining industry, she is responsible for technical financial reporting and procedures for the group.
  • Paul Gillot

    GROUP METALLURGIST, DEPUTY GM CAPITAL PROJECTS

    Paul has 25 years’ operational and management experience in the mining industry and moved into the projects arena for the group with the commissioning of the Tongon mine. He obtained his NHD in Extractive Metallurgy from the University of Johannesburg. He is responsible for the group’s metallurgical activities.
  • Riaan Grobler

    GROUP GM COMMERCIAL AND SUPPLY CHAIN

    Riaan holds an Honour’s degree in finance and has 16 years’ experience in the gold mining industry. He was initially appointed financial projects manager East Africa in early 2012 and was involved in the financial management side of the construction of the Kibali mine before his promotion in January 2014 to group general manager commercial and supply chain.
  • Victor Matfield

    GROUP GM CORPORATE FINANCE

    A chartered accountant, Victor was appointed corporate finance manager in 2001. Prior to that he served as financial manager of both the Syama and Morila mines.
  • Rod Quick

    GROUP GM EVALUATION

    A geologist with an MSc Geology and 21 years’ experience in the gold mining industry. Rod joined Randgold in 1996, and has been involved in the exploration, evaluation and production phases of all Randgold’s projects since Morila. He became responsible for all project development and evaluation for the group since 2009.
  • Lois Wark

    GROUP GM CORPORATE COMMUNICATIONS

    Lois has been with Randgold since its inception and assumed management of the cartography department in 1995. She is responsible for the coordination of the group’s communications and investor relations programmes and holds a diploma in land surveying: cadastral and topographical.
  • Charles Wells

    GM KIBALI MINE

    Charles has an MSc in environmental biotechnology and 17 years’ experience in environmental management. He joined Randgold in March 2012 with responsibility for the group’s sustainability programme before being appointed the general manager of the Kibali mine in 2014.
  • Martin Welsh

    GENERAL COUNSEL AND SECRETARY

    Martin joined Randgold in 2011 and in 2012 was appointed the group’s company secretary and general counsel. He qualified as a solicitor in 1998 and before joining Randgold, worked in London for the city law firms Dickson Minto WS and Linklaters. Martin holds BA (Hons) and LLB degrees and a diploma in legal practice from the University of Strathclyde.

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