Senior Management

Kobus Verster – Chief Executive Officer

BCom degree, University of Potchefstroom, BCom Economics (Hons.) University of Pretoria, MBL University of South Africa (Unisa) Executive Management Programme, University of Virginia, USA.

Kobus has more than 20 years’ experience in the steel industry. He started his career at Iscor South Africa. He was chief financial officer and executive director of ArcelorMittal South Africa from February 2006 to August 2010. 
He played a broader strategic role within the company during that period. Prior to his appointment as chief financial officer, he was General Manager corporate treasury at Mittal Steel in Rotterdam and held various senior roles in financial management and treasury in Iscor. Then Kobus served on the board of Aveng Limited as chief executive officer from 11 February 2014 until 26 September 2017.


Desmond Maharaj -Chief Financial Officer and an Executive Director

Master’s degree in Finance and is a qualified Chartered Accountant, registered with the South African Institute of Chartered Accountants.

Desmond has served 17 years at senior executive level in finance or general management.


Colin Hautz - Chief Marketing Officer

B.A. Mechanical and Manufacturing Engineering Trinity College Dublin, Ireland.

Prior to joining ArcelorMittal in 2003, Colin held various sales, marketing and business development positions within General Electric Plastics Europe. From 1999 to 2003 he was a senior manager for Accenture in Germany working on commercial and operational improvement projects for clients in the resources industries. Colin joined ArcelorMittal group corporate as a continuous improvement manager before becoming general manager for performance enhancement in 2005 where he led the implementation of global technical benchmarking, the knowledge management programme and the performance excellence awards. In 2008, he became general manager for market development and since 2013, Colin has worked as general manager strategy responsible for managing the group annual strategy cycle and capex planning process.


Jake Olivier - Chief Operations Officer

Jake holds a B. Mechanical degree and a Master’s in Business Administration from North West University

Jake Olivier’s has over 22 years’ experience within the manufacturing industry, has held various executive positions and served on various management committees and boards as chairman and director, including various positions at ArcelorMittal South Africa in operations, procurement and logistics.


Alph Ngapo - General Manager: Sales & Marketing - Africa Overland

BAcc Sciences, Hons Accounting Sciences, MBA

Prior to his appointment at ArcelorMittal South Africa, Alph was employed by the Aveng Group Limited, a leading Infrastructure development company listed company on the Johannesburg Stock Exchange where he held the positions of Group Executive: Africa; Managing Director, Aveng Trident Steel; Acting MD Steeledale and Group Senior Executive respectively.

In his career, Alph also occupied various senior positions in a number of industries which among others include Steel, Petrochemical, Packaging, FMCG and Transport. He has in the process acquired vast experience in the areas of Operations, Commercial & Finance and General Management. His previous non-executive directorships include among others, Hwange Colliery (Zimbabwe), BP Mozambique Limitada (BoardChairman), Vesco, Collect-A-Can and Masana Petroleum.  He was the Vice President and non-Executive director of Steel and Engineering Industries Federation of Southern Africa (SEIFSA) and currently an Executive Director at Parc Randon Gas (Pty) Ltd and AM6 Chemicals and Supplies (Pty) Ltd.


Sedick Achmat - General Manager Human Resources and Transformation

BEng Mechanical University of Cape Town (UCT), MBA UCT

Sedick joined ArcelorMittal, Saldanha Works on 1 December 2007. He gained experience in numerous positions since 2007 in engineering, human resources and operations including the positions of Manager Human Resources and Plant Manager Rolling at Saldanha Works.


Werner Venter – General Manager : Vanderbijlpark Works

Werner joined the company in 1987 as a Bursary holder and then Engineer in training at Vanderbijlpark Works. He has held various engineer and senior engineer positions within Vanderbijlpark Works. Since 2000 Werner held several managerial positions in the Hot Rolling area. On 1 January 2011 he was appointed as Works Manager Hot Rolling.


Juan Pedro Jimenez Navarro - General Manager: Saldanha Works

Master’s degree in Industrial Engineering , Polytechnic University of Valencia

Juan Pedro has more than 20 years’ experience in the Steel making industry and has held various managerial positions during that time. His most recent position was that of chief operations officer, Finishing, for ArcelorMittal Galati in Romania. Prior to this, Juan Pedro held the position of CEO ArcelorMittal Skopje, Macedonia as well as roles in production and engineering management in France, Spain and Brazil. of Valencia..


Abe Grootboom - General Manager: Coke & Chemicals, Pretoria Works

BSc (Hons) Chemistry (Drew University, New Jersey, USA)

Appointed as General Manager, ArcelorMittal Coke & Chemicals, from 1 June 2011. Previously Manager, Sales and Distribution at ArcelorMittal Coke & Chemicals. Joined ArcelorMittal South Africa in 2004 as Manager, By-Products. His career spans a number of functions from quality assurance to sales and marketing in different industries.


Charlton Witcher - General Manager, Long Steel Products

CTW Whitcher, General Manager Long Steel Products, BSC Electrical Engineering, MBA, GCC, Pr Eng.

Joined ArcelorMittal in August 1998 as a graduate engineer. He served as Maintenance Manager Coke Making, Production Manager Coke Making and Plant Manager Coke Making before been appointed as Group Manager Tubular Products in 2012. In 2014 he was appointed as Group Manager Vereeniging Works. When the Vereeniging and Newcastle Works combined to form one Long Steel Products business unit in 2015, he was appointed as Deputy General Manager of the newly formed BU.


Hennie Mey - Group Manager: Information Management


Hennie joined ArcelorMittal South Africa in 1992 in the Automation department. He has held various management position and was part of the Saldanha Steel greenfield project team. Hennie is now appointed as Group Manager, Information Management.            


Adinda Louw - Group Manager: Internal Assurance

BCom Accounting (Potchefstroom University), MAP (University of the Witwatersrand) EDP (Kellogg), MBA (North West University).

Joined ArcelorMittal South Africa in August 1993. She has held a number of managerial positions before being appointed as Group Manager, Internal Assurance, in 2008. Completed her articles at KPMG.


Mohamed Adam - General Counsel and Head of Government and Regulatory Affairs


BA Law (University of Durban Westville), LLB (University of the Witwatersrand), LLM in International Trade Law (University of Essex - UK)

Joined ArcelorMittal South Africa in February 2015. Previously held various professional and management positions in Eskom.


Cobus Muller - Group Manager: Operations, Gauteng

B. Eng (Electrical), Government Certificate of Competency

Joined ArcelorMittal South Africa, formally known as Iscor in 1984 as an Engineering bursar. During his career he held several positions at Vereeniging Works, Tubular products and Vanderbijlpark Works including Maintenance Manager Vaal Meltshop, Plant Manager Vaal Rolling Mills, General Manager Tubular Products and Works Manager Hot Rolling. He was appointed as Group Manager Tubular Products on 1 September 2014.


Siegfried Spänig - Manager: Environment Management

BSc (Chemistry), HED, MDP

Joined ArcelorMittal South Africa, formally known as Iscor in 1996 to oversee environmental management at Saldanha Steel during the start-up and early phase of the plant. Appointed in 2006 as Manager, Environment, within the corporate Safety, Health and Environment department was appointed as Group Manager, Environment in 2008.


Dieter Sauer - SHERQ Manager Vanderbijlpark & Group Health and Safety

Industrial Psychology degree (masters) University of North West, Management Diploma (Wits), Registered with the Health Professional Council of South Africa, (HPCSA), Qualified Electrical Artisan (Red Seal).    

Dieter Sauer is an industrial Psychologist with more than 33 years working experience, including expertise in health, hygiene, wellness, safety, risk management, environmental management and HR. He spent the last 16 years in various general management positions at ArcelorMittal South Africa. His previous positions include SHERQ Manager Vanderbijlpark works, HR Manager Vanderbijlpark Works and Gauteng HR Manager. Technical Supreintendent, Planner electrical and mechanical at Rolling Vanderbijlpark Works.