Our leadership

Martin Preece [photo]

Martin Preece

Executive Vice President Gold Fields South Africa

Martin Preece began his career at De Beers Consolidated Mines. Over 32 years he progressed through the ranks at De Beers in South Africa and abroad and by 2016, his leadership roles had included mining manager, assistant general manager, business development manager, general manager, chief operating officer.


In 2017 Martin took up the position of Gold Fields Executive Vice President: South Africa, with responsibility for the South Deep mine He also serves on the board of the Minerals Council South Africa. Martin holds a mining engineering qualification and business and executive development credentials from leading institutions.

Martin has a reputation for distilling key issues from complex situations, and leading multi-disciplinary teams to achieve performance and operational excellence. At South Deep, Martin embodies the principle of authentic and values-based leadership. With focussed energy, he drives organisational and cultural transformation to enable sustainable improvement.

Benford Mokoatle [photo]

Benford Mokoatle

Vice President and Head of Operations

While still in high school, Benford Mokoatle was inspired by a geologist at one of the Vaal Reef mines to pursue a career in geology. He augmented his qualification as a geologist, gaining knowledge in economics, developing business acumen as well as ethical, social and political awareness to ensure that he became a well-rounded individual.


After some 21 years in the mining industry, Benford joined Gold Fields and South Deep in October 2017. Here he sees his role as Vice President and general manager of the mine not as a job but as a calling. It is a calling about driving a sustainable change, making a difference to people and giving hope where many have lost hope. He plays a leading role in turning around a mine that was accustomed to loss making, by driving change and influencing the culture to deliver on South Deep’s strategy.

South Deep is a modern mine with immense opportunity that can make a difference to the region and the country. We have started to journey towards making South Deep a beacon of pride for our people, our communities, our stakeholders and our shareholders. We have begun to use our resources to drive change and make a difference at our mine and in our communities.
Gerrit Lotz [photo]

Gerrit Lotz

VP People and Organisational Effectiveness

Gerrit Lotz has over 20 years of experience leading human capital and business improvement functions within large companies. Gerrit holds a master’s degree in Performance, Leadership and Change and has built solid expertise in strategic planning, development and execution of integrated HR and people strategies, policies, procedures, programmes and practices.


Gerrit holds a master’s degree in Performance, Leadership and Change and has built solid expertise in strategic planning, development and execution of integrated HR and people strategies, policies, procedures, programmes and practices. Before joining Gold Fields in 2017, Gerrit had spent 19 years with De Beers Consolidated Mines, serving as Senior Human Resources Manager, then Head of Human Resources. Through his career he has grown his knowledge of business improvement methodologies, which he applies to streamline HR, organisational and people-related functions.

Brian Boatard [photo]

Brian Boatard

Head of Human Resources

Brian Boatard began his career at Gold Fields as a graduate in the Human Resources department in 1995. He later reached the position of HR Officer. In 1999 he was offered an opportunity at Anglo American where he spent 15 years in various divisions, reaching the level of Manager: Human Resources.


Following this, he worked at Vedanta Resources as VP HR. He joined South Deep, in 2018 as Head of Human Resources.

In this capacity, Brian provides strategic, tactical and operational support across the full range of HR activities, while ensuring adherence to Group standards, policies and procedures. He also operates as an internal consultant to multiple functions’ leadership teams, assisting them in implementing and reaching the organisation’s strategic goals.

Stephan Fouche [photo]

Stephan Fouche

Manager: Commercial Services

Stephan Fouche began his career with Gold Fields in 1996, as a financial clerk at the company’s St Helena mine in the Free State Province of South Africa. He gained further management accounting experience at the Group’s Beatrix and Driefontein mines eventually transferring to the Gold Fields Shared Services division.


Subsequently Stephan began working on ICT projects and contributed to the successful implementation of the SAP enterprise resource planning system. In 2010, he transferred to South Deep to take up a role as Unit Manager Management Accounting, and in 2019 he was promoted to Head of the Commercial Services department.

In this capacity, Stephan ensures that the financial strategy is achieved, that financial reporting is accurate and up-to-date and that capital and operational expenditure is value-adding. He is also responsible for financial governance and compliance and ensuring the correct and sustainable deployment of ICT systems, payroll activities and procurement and supply chain management.

Grant Webber [photo]

Grant Webber

Head of Mining

Grant Webber has worked in the mining industry for three decades, at a range of companies that including JCI, Harmony Gold, Lonmin Platinum, Sibanye Stillwater and now Gold Fields. He joined the South Deep Team in 2020 after spending four years working at the neighbouring Kloof mines.


As the Head of Mining, Grant is responsible for developing and successfully executing the mining extraction strategy. This strategy focuses on developing the competencies and capabilities of the mining teams and enabling people to perform to their full potential.

Andre Marais [photo]

Andre Marais

Head of Projects

Andre Marais is Head of Projects at South Deep, responsible for providing the mining teams with the support they need, including placing of backfill, the shotcrete teams carrying work out in the de-stress areas, the secondary support teams, and the teams carrying out operations in the current mine area. He also oversees the execution of a number of capital infrastructure projects and the drawing office.


Andre Marais has a qualification in electrical engineering. He joined the South Deep team in 2008 to complete the shaft sinking and commence with the major construction work that was required for the production build-up and eventual steady-state production.

South Deep has many opportunities. The mine is a complex entity and getting to understand all the intricacies that make it function requires dedication and stamina. If you are willing to learn it will allow you to grow as a person in all aspects of life. The experience you gain at South Deep will stand you in good stead no matter where your career takes you.
Francois van der Walt [photo]

Francois van der Walt

Manager: Safety, Health and Environmental Engineering

Francois van der Walt began his career with AngloGold Ashanti in November 1993. He worked in various roles in safety, health and environmental engineering as well as senior management at a number of the AngloGold Ashanti’s largest South African mines. Francois joined South Deep in January 2017, and was appointed as Manager Safety, Health and Environmental Engineering in 2019.

Every day at South Deep brings with it an opportunity to make a difference. The mine has been through a very tough time and we are busy rebuilding it. It is exciting to see it rise from the ashes, grow and prosper on a daily basis. If I see what we have done in two short years, the future is unimaginable This is only the beginning and we will be the ‘last man standing’ in the SA gold industry.
Johan Sliep [photo]

Johan Sliep

Head of Technical and Production Intelligence Systems

Johan Sliep is a geologist by profession, who has worked on a number of exploration projects. In the process he has developed a keen interest in the mining value chain and firmly believes in the promise that modernisation holds for mine safety and productivity.


His focus is on the technologies enabling the efficiencies of the value chain processes and ensuring South Deep’s infrastructure is ready for the implementation of these technologies, that processes and technologies align and that people are prepared for the changes the digital environment will invariably introduce at South Deep.

Many changes have been realised here over the last year-and-a-half and every day another small success story is evident. Many people on the mine, in the communities as well as our shareholders rely on this success and we are growing from strength to strength, slowly but surely.
Luyanda Xulu [photo]

Luyanda Xulu

Head of Engineering

Over the past 20 years, Luyanda Xulu’s career has spanned diamond and gold mining operations in South Africa, Ghana, Mali and Sierra Leone. He has acquired broad leadership skills and diverse technical experience. Luyanda has been at South Deep since 2017 and, as Head of Engineering, is accountable for mine maintenance.


This entails rendering appropriate maintenance support for infrastructure and trackless machinery to enable safe execution of bulk mining activities, while ensuring compliance with statutory requirements.

I am enthralled by the evolving culture of performance. Boundless opportunity exists in unlocking leverages and productivity inefficiencies. South Deep’s legacy is being shaped by a strong culture of performance which is underpinned by values driven leadership.
MI Botha [photo]

MI Botha

Manager: Technical Services

MI (Matthys) Botha trained as a mining engineer with Gold Fields, before joining various mining contractors where he worked on new mine development projects, gaining exposure to diverse organisations and people. Specialising in mechanised mining he was exposed to a number of interesting technical challenges.


In 2015, MI returned to Gold Fields as mining engineer to develop the rebase plan for South Deep. He leads the technical services teams that include geology, rock engineering, production engineering, planning and surveys.

The mine possesses one of the largest gold orebodies in the world with the technical capability to profitably mine for multi generations, the size of the prize is as big as it gets!
Stephen Joseph [photo]

Stephen Joseph

Head of Metallurgy

Stephen Joseph is a metallurgist by training, who began his career with JCI where he worked at its platinum and gold mining operations. He joined South Deep as a metallurgist in 2001. In his capacity as Head of Metallurgy he manages the gold plant, backfill plant and all surface infrastructure such as the pollution control dams and tailings storage facilities.


The Metallurgical Department is key to ensuring that mining can occur safely with maximum gold recovery and ensuring a sustainable environment to allow the mine to continue operating.

South Deep has the orebody that can take mining technology into the future. This will not only create employment and business for our communities, but created a skilled workforce which will ensure the sustainability of the mine.
Elane Botha [photo]

Elane Botha

Head of Legal and Compliance

Elane Botha began her career as a prosecutor and was later appointed as a state advocate (still as a prosecutor) in Johannesburg. She completed her articles at Adams and Adams law firm and was admitted as an attorney in 2004.


A year later she commenced with pupillage at the Johannesburg Bar, where she was subsequently readmitted as an advocate. Elane was at the Bar for eight years, before joining a junior mining company in 2013. She took on her role at South Deep in May 2019.

Elane’s work includes providing legal oversight and leading and directing all legal matters for the mine. She is responsible for ensuring mine-wide compliance with relevant laws, regulations and business rules, policies and procedures. It is also within her scope to identify and resolve risk areas and defend and protect the legal interests of the organisation.

South Deep is a rewarding place to work because of the contributions it makes to the communities, and employees who are uplifted and trained in a new way of thinking, changing behaviour in a positive way, the Siyaphambili way. South Deep is not just a place of work, it’s a family.
Puseletso Matete [photo]

Puseletso Matete

Head of Sustainable Development and Environment

Puseletso Matete is an Urban and Regional Planner with a postgraduate qualification in Environmental and Geography Studies. Throughout her career, she has worked largely in the space of environmental and sustainable development.


Puseletso worked in the infrastructure development value chain prior to entering the pure mining environment of Gold Fields at Group level in 2015. She joined South Deep Mine in 2018.

Puseletso leads her dedicated team to implement the Group’s sustainable development and environmental policies and strategies at mine level, monitoring and reporting on performance. It is her responsibility to ensure Social and Labour Plan and relevant Mining Charter commitments are achieved, externally assured, compliant and reported. Puseletso takes care of the mine’s stakeholder management and the socio-economic performance in its host communities and labour sending areas, while contributing to the transformation agenda of the mine.

The mine is committed to increase host community employment and procurement, and actively recruits qualified historically disadvantaged individuals. The mine has never discontinued its socio-economic spend even during the toughest financial times. We are a listening, learning and responsive organisation that is working hard to improve the quality of our relations with all our stakeholders.