Alumni Events

Join us at Hartenberg Wine Estate in Stellenbosch where our esteemed speakers will unpack the topic of ‘Sustainability’.


Date: Thursday, 10 November 2022

Time:17:30 for 18:00 – 20:00

Venue: Hartenberg Wine Estate, Stellenbosch

Enquiries: Lizelle Kannemeyer | [email protected]



Carl Schultz

Winemaker: Cape Winemaker’s Guild


Carl was born on a farm in the Montagu district. After attaining a Diploma in Oenology (Dux student) at Elsenberg in 1988, he was appointed Assistant Winemaker at Calitzdorp.

In 1989 he joined Simonsig Estate as Winemaker, and spent a valuable four years there. Studies were furthered at the Stellenbosch University School of Business in 1991. Appointment to Cellarmaster at Hartenberg Estate followed in 1994. In the same year this was followed by visits to the winelands of Tuscany, Alsace, Rhinegau, Burgundy and, most importantly, the Rhône. This was followed by an extensive tour to Australia, in 1996, to focus on quality Shiraz production. In 1996 Carl was appointed to the Hartenberg Board of Directors and he controls all vineyard and cellar activities. It was in this year that Carl was invited to become a member of the Cape Winemakers Guild.

The 1997 European vintage was spent working in a Northern Rhône cellar, that owned vineyards in Côte Rotie and Condrieu. In 1998 Hartenberg had the distinction of listing a record nine wines on the SAA winelist and in 2002 the 2000 Shiraz was awarded the SAA Red Wine Trophy.

Carl was Chairman of the Cape Winemakers Guild for 1999 and 2000.

Magda Vorster

Cape Winemakers Guild Protégé Programme Facilitator


Magda Vorster joining the Cape Winemakers Guild Development Trust in 2008 to supporting the Cape Winemakers Guild in their role in driving and supporting transformation of the South African Wine Industry through the Protégé Programme. She passioned about empowering of people.

Magda is also the other co-founder, leader, and Director of Barvalley Personnel Services. She oversees human resources management, ethical compliance, staff development, BEE compliance and health and safety. Her extensive expertise in the industry has contributed immensely to the long-term success of the business. She is passionate about her role in making a positive contribution to the agricultural sector by establishing a highly motivated and productive workforce that promotes ethical trade. This adds to her vision for the industry: to be acknowledged as a successful and sustainable sector in South Africa with healthy relationships throughout the value chain.

Mosima Mabelebele

First Year Protége at the Cape Winemaker’s Guild


Mosima matriculated in 2017 from Ebenezer high school and graduated in 2022 from Stellenbosch University, studying Bsc Viticulture and Oenology. She is a first year Protége in the Cape Winemaker’s Guild, currently working at Hartenberg Wine Estate under the mentorship of Carl Schultz.

Dr Natasha Winkler-Titus

Senior Lecturer in Organisational Behaviour and Leadership at Stellenbosch Business School


Natasha Winkler-Titus holds a PhD in Organisational Psychology and is registered with the Health Professions Council South Africa (HPCSA). She currently serves as President of the Society of Work Psychologists in South Africa (SIOPSA), and also serves as International Expert Panellist for the Centre for Global Inclusion (GDIB).

Following a 25-year career in Management consulting and HR leadership, where she held senior management roles with Rio Tinto and KPMG, she consults and is the founder of SigniFYER, a body of associates aiming to making change significant for individuals and organisations. Natasha is a full-time faculty member at Stellenbosch Business School. She was awarded the 2019 Organizational Psychology Practitioner of the year- South Africa, and was awarded Best Paper at the 2018 British Academy of Management (BAM) Annual conference in Bristol, UK.


Carina Marais

PGDip Futures Studies student at Stellenbosch Business School


Carina grew up in Polokwane and after completing a Diploma in Public Relations at the Vaal University of Technology in 1991 started work in Johannesburg as a Public Relations Practitioner.  She worked at a PR consultancy on the accounts of the University of Pretoria and the Medical University of Southern Africa, now known as the Sefako Makgatho University, where she was responsible for events management and fundraising.

Carina joined the University of Limpopo in 2006 as Development Manager and in 2018 she was appointed as the Director of the Resource Mobilisation Centre.  She initiates and leads international partnerships with Higher Education Institutions and grant-making agencies to secure monetary support of the University of Limpopo’s research, teaching, and community engagement programmes.

In 2021 she returned to university as a part time student and completed an Advanced Diploma in Communication Management at the University of Johannesburg.  This year Carina is a student at the Stellenbosch Business School where she is completing a Postgraduate Diploma in Futures Studies.

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