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Harry Kenyon-Slaney
Non-Executive Chairperson
BSc Geology (Southampton University),International Executive Programme (INSEAD France)
Harry has over 39 years of experience in the mining industry, principally with Rio
Tinto. He is a geologist by training and his experience spans operations, marketing,
projects, finance and business development. He has worked in South Africa, Australia
and the UK. Until 2015, Harry was a member of the Group Executive Committee
of Rio Tinto, where he held the roles of CEO of Energy and before that CEO of
Diamonds and Minerals. Prior to this he variously led Rio Tinto’s global titanium
dioxide business, was CEO of Rio Tinto’s listed subsidiary, Energy Resources of
Australia Limited, was general manager of operations at Palabora Mining Company
in South Africa and held senior marketing roles in copper, uranium and industrial
minerals. He began his career as an underground geologist with Anglo American on
the gold mines in South Africa.
Appointed
Harry was appointed as Chairman of the Board in June 2017.
Board Committee Membership
Chairperson of the Nominations Committee and a Member of the Remuneration and Sustainability Committees.
Current external appointments
Harry is currently a senior adviser to McKinsey & Co.
Harry is a member of the advisory board of Schenck Process AG; and a non-Executive
Director of Sibanye-Stillwater; and several private companies.
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Michael Lynch-Bell
Non-Executive Director
BA Hons Economics and Accountancy
(University of Sheffield); FCA of the Institute of
Chartered Accountants in England and Wales
Michael spent a 38-year career with Ernst & Young (EY), having led its Global Oil
and Gas, UK IPO and Global Oil and Gas and Mining transaction advisory practices.
He was a member of EY’s assurance Practice from 1974 to 1996, when he transferred
to the Transaction Advisory Practice. He was also UK Alumni sponsor and a member
of the firm’s Europe, Middle East, India, and Africa and Global Advisory Councils.
He retired from EY as a partner in 2012 and continued as a consultant to the firm
until November 2013.
Appointed
Michael joined the Board in December 2015 and was appointed Senior Independent Director in November 2017.
Board Committee Membership
Chairperson of the Audit and Remuneration Committees and a member of the Nomination Committee
Current external appointments
Michael is currently chair of Little Green Pharma Ltd; and non-Executive Director
and chair of the Remuneration Committee of Barloworld Limited.
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Mike Brown
Non-Executive Director
BSc Engineering; Mining PR Eng (ECSA)
Engineering (University of Witwatersrand);
Strategic Executive Programme (London
Business School)
Mike has over 37 years’ experience in the resources industry in operational, senior
management and director roles. He spent six years in Switzerland as the Managing
Director technical at Pala, where he oversaw all technical aspects of the mining
sector investments, including the risks associated with resource performance,
project management, ramp-up, operations, and the associated working capital and
financial controls. Prior to joining Pala, Mike spent 21 years with De Beers in southern
Africa in various roles, culminating in the post of chief operating officer where he
was accountable for five operating mines, including greenfield and brownfield
growth projects. He also managed the restructuring at De Beers Consolidated Mines
in 2005/2006 and again in 2009. Mike has overseen growth projects and building of
mines in Namibia, South Africa, Sierra Leone, Vietnam and USA.
Appointed
Mike joined the Board in January 2018.
Board Committee Membership
Chairperson of the Sustainability Committee, Member of the Audit and Nomination Committees.
Current external appointments
Michael is currently chair of Little Green Pharma Ltd; and non-Executive Director
and chair of the Remuneration Committee of Barloworld Limited.
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Mazvi Maharasoa
Non-Executive Director
BLLM International and Commercial Law (University of Buckingham)
Mazvi has over 22 years’ experience in senior management positions, including
leading roles in the mining sector, having served as the resident director and chief
executive officer of Letšeng Diamonds Proprietary Limited until 2017. Furthermore,
Mazvi was also the founder and president of the Lesotho Chamber of Mines (2016).
Prior to her work in the mining industry, Mazvi was involved in the Ministry of
Natural Resources and the Central Bank of Lesotho, where she was the senior legal
counsel for each of these entities.
Since joining the Board, Mazvi has been appointed as the designated non-Executive
Director for workforce engagement.
Appointed
Mazvi joined the Board in July 2019.
Board Committee Membership
Member of the Sustainability Committee
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Rosalind Kainyah
Non-Executive Director
BA (Hons) (University of Ghana), LLB (Hons)
(University of London), LLM (University College,
University of London), Member of the Bar of
England & Wales (Gray’s Inn), MCIArb
Rosalind is the founder and Managing Director of Kina Advisory Limited, a trusted
adviser to Boards and Senior Executives of global companies on sustainability and
responsible business investment and partnerships in emerging markets. She trained
as a lawyer and is a member of the Bar of England and Wales and of the Chartered
Institute of Arbitrators. Rosalind has almost 30 years of combined international,
senior management, executive and board level experience. She has worked with
companies and organisations including Linklaters, Anglo American Corporation of
South Africa, De Beers, Tullow Oil plc, the United Nations Environment Programme
and ERM, and on projects across Africa, in the UK, Europe, North and South America,
Asia, and the South Pacific. As a result, she has a wide network and is respected
across a range of stakeholders from governments and corporates through civil
society organisations and media for her professional expertise and as a woman of
integrity and credibility.
Appointed
Rosalind joined the Board in May 2021
Board Committee Membership
Member of the Remuneration, Audit and Sustainability Committees
Current external appointments
Rosalind is currently the Managing Director of Kina Advisory Limited and a non-
Executive Director for discoverIE plc, CalBank plc (Ghana) and two private companies.
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Jaco Houman
Senior Manager - Technical and Projects
B.Eng(Met) (University of Pretoria); MBA
(University of Witwatersrand Business School)
Jaco joined Gem Diamonds in 2016. His technical and managerial career
spans more than 25 years. He has a diverse background in areas of operational
excellence, design, production, technical support, Safety, Health, Environment
and Quality (SHEQ) and consulting. He has been involved in the development and
implementation of a turnaround plan, performance improvement initiatives, cost
reduction measures, volume expansion at an operation, project, and group level.
He has led and assisted in the development of technical strategies, pre-feasibility
and feasibility studies, design, commissioning and technical evaluation reviews.
He led the safety, occupational hygiene and environmental departments at a large
corporate for more than two years. He spent some time in business improvement
and applied financial modelling skills to enhance operational delivery through the
optimisation of the value chain to maximise value for the business.
Current external appointments
None
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Clifford Elphick
Chief Executive Officer
BCom (University of Cape Town);
BCompt Hons (University of South Africa)
Clifford joined Anglo American Corporation in 1986 and was seconded to
E Oppenheimer & Son Proprietary Limited as Harry Oppenheimer’s personal
assistant in 1988. In 1990, he was appointed Managing Director of E Oppenheimer
& Son, a position he held until leaving in December 2004. During that time, Clifford
was also a Director of Central Holdings, Anglo American and DB Investments.
Following the privatisation of De Beers in 2000, Clifford served on the De Beers
Executive Committee.
Appointed
Clifford formed Gem Diamonds in July 2005.
Current external appointments
Clifford is currently the non-Executive Chairperson of Zanaga Iron Ore Co. Limited.
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Michael Michael
Chief Financial Officer
BCom Hons (Rand Afrikaans University); CA(SA)
Michael has over 22 years’ experience in financial management. He joined the
audit firm RSM Betty & Dickson in Johannesburg, South Africa in January 1993 and
became audit partner at the firm in March 2000. From August 2006 to February
2008 Michael was seconded to Gem Diamonds Limited to assist with the financial
aspects of the main London listing, including the financial reporting, management
accounting and tax relating to the initial public offering. In March 2008 Michael joined
Gem Diamonds on a full-time basis as the Group Financial Manager. On 2 April 2013
he was promoted to the position of Chief Financial Officer and appointed to the
Board.
Appointed
Michael joined Gem Diamonds in March 2008 and was appointed to the Board in April 2013.
Current external appointments
None
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Glenn Turner
Chief Legal and Commercial Officer and Company Secretary
BA; LLB (University of Cape Town);
LLM (Cambridge)
Glenn was called to the Johannesburg Bar in 1987, where he spent 14 years
practising as an advocate specialising in general commercial and competition
law and took silk in 2002. Glenn was appointed De Beers’ first general counsel in
2002 and was also a member of its Executive Committee. He was responsible for a
number of key initiatives during his tenure, including overseeing De Beers’ re-entry
into the USA.
Appointed
Glenn joined Gem Diamonds in May 2006 and served on the Board from April 2008 to November 2017. Glenn was appointed as the Company Secretary in January 2015
Current external appointments
Glenn is currently a non-Executive Director of Agribiomed Limited and Lineout
Holdings Limited.
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Brandon de Bruin
Chief Operating Officer
BCom; LLB (University of the Witwatersrand)
Brandon joined Gem Diamonds in 2007 from Clifford Chance LLP. Practising in New
York and London, he specialised in debt and equity capital markets and corporate
finance gaining extensive commercial and legal experience in international corporate
and finance transactions, stock exchange listings in London, Luxembourg and New
York and in the UKLA (UK) and SEC (USA) rules and regulations. At Gem Diamonds,
Brandon has been responsible for numerous corporate and financial transactions.
He was head of the Group’s Sales, Marketing and Manufacturing division from 2013
to 2017 when he was appointed as the Group Business Transformation Officer. In
2019 Brandon was appointed as the Group Operations and Business Transformation
Executive and in 2021 as Chief Operating Officer.
Appointed
Brandon joined Gem Diamonds in August 2007
Current external appointments
None
