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SepCem (Aganang & Delmas) (VIDEO 7min22 )


Inspired people:
Passionate, engagedemployees who love what they do.

Changing the face of our industry:
Being the best in the industry by offering innovative solutions.

Creating and growing stakeholder fulfilment:
Addressing and exceeding the needs and expectations of all stakeholders by creating and continuously developing value that did not exist before.


We empower our people to think and act in ways to get the job done, while adhering to processes that ensure proper governance and being mindful of company needs beyond one’s own.

Accountability and integrity:
We are focused on delivering, and we do what we say we will do. We hold ourselves accountable for our work, our behaviour, our ethics and our actions. We aim to deliver to all stakeholders.

Passion and enthusiasm:
We love what we do. We are passionate about our brand and promote a positive, energising, optimistic and fun environment. Our reputation relies on the advocacy of every employee.

Customer care:
We are concerned with our customers’ needs and perceptions. We aspire to build lasting relationships, based on trust, towards being the preferred choice in product and service.

SepCem successfully penetrated the cement market by fulfilling its promises of:
– high-quality products, exceptional service and first-class technical support to customers; and
– sustainable growth in profitability to shareholders.

The plants have been designed using German-engineered Loesche mills and other key equipment from European suppliers to maximise operational efficiency and competitiveness, while limiting the environmental impact.

To read more of the operational performance you can read our integrated report annual online review by clicking here.



Duan Claassen (52)
Acting Chief Executive Officer
BEng (Metallurgical Engineering) (University of Pretoria), Young MDP (INSEAD, France), MDP (Duke University, USA)
Duan completed his graduate engineer training at De Beers before joining Blue Circle Cement in 1997. He was involved with Blue Circle Cement’s integration into Lafarge in 1998. He subsequently worked for PPC before being appointed on 1 January 2008.

Suleiman Oladapo Olarinde (57)
Financial director
BSc (Hons) (Economics) (Ahmadu Bello University, Nigeria), Fellow of the Institute of Chartered Accountants of Nigeria
Suleiman started his career with Price Waterhouse and has over 35 years of experience. He joined the Dangote group in 1991 as head of internal audit and financial services. Suleiman is employed by Dangote Industries Limited [Nigeria] as an executive director (finance). He was appointed FD on a fixed-term contract on 21 August 2014.

Gay de Witt (51)
Chief financial officer
BCom (Hons) (University of Pretoria), CTA (University of South Africa), CA(SA)
Gay has experience in several fields, including finance, operations and risk management. She was working for Clover Danone before being appointed on 1 July 2009.

Heinrich de Beer (53)
Executive manager projects
BEng (Mechanical) (North West University), MDP (North West University), LDP (Gordon Institute of Business Science)
Heinrich started his career as a project engineer and maintenance manager at Mittal SA before joining Indian Ocean Fertilizers. He later worked at Lafarge, where he held various positions in maintenance, project management, logistics and procurement. Heinrich was appointed on 1 June 2008.

Khumo Mphake (40)
Executive manager organisational performance
BA (Industrial Psychology) (University of Cape Town), BA (Hons) (Industrial Psychology) (University of South Africa), PGDip (Management and Business Administration) (Witwatersrand Business School), MDP (BBBEE) (University of South Africa – School of Business Leadership)
Khumo has comprehensive experience in human resources management that spans 14 years. She started her career in the banking sector and after that, joined Lafarge in 2006. She subsequently worked for Sentula Mining Limited and Tongaat Hulett Starch. She was appointed on 9 March 2020.

Robert Mathye (44)
Executive manager sustainable development
MPhil (Rand Afrikaans University), BA (Hons) (Geography and Environmental Sciences), BAED (University of Venda)
Robert is a social scientist with a career that spans 17 years. He has extensive experience in managing and implementing social transformation. Robert worked for the De Beers group for over five years, where he was part of the team that implemented the company’s transformation and its corporate social responsibility programme. Robert joined Sephaku Cement on 1 April 2009 and was appointed to his current position on 1 April 2018.


Jennifer Bennette (57)
Company secretary
Jennifer has over 37 years’ experience in paralegal and company secretarial work. She previously fulfilled the company secretary roles at Platmin Limited and Sephaku Holdings Limited. She was appointed on 1 February 2008.

Permanent invitees to the executive committee


Mziwakhe Matola (38)
Head of risk management
BCom (Economics) (University of Pretoria), Bachelor of Christian Entrepreneurship (Team Impact Christian University: USA), PGCert (Risk Management) (University of South Africa)
Mziwakhe has over 15 years of experience in enterprise risk management (ERM), ranging from establishing to maturing ERM programmes. He has a track record in implementing ERM in various risk management roles in the energy, chemicals, banking and insurance industries within African countries, including South Africa, Namibia, Zambia and Botswana. Mziwakhe was appointed on 15 March 2016.


Alfred Radebe (38)
Head of internal audit
BCom (Accounting) (University of KwaZulu-Natal), AGA(SA)
Alfred completed his SAICA articles in 2003 before assuming the internal audit role at Imperial Group and Nampak. He later moved to Ernst & Young (EY), where he was responsible for managing internal audit engagements in various sectors across sub-Saharan Africa. He was appointed on 1 January 2015.

To read more of the operational performance you can read our annual online review by clicking here.