Executive Team




    George Mothema is the Chairman of PhiBon Capital. He previously served on the boards of the South African Post Office as Chairman, South African Express Airways Limited and currently chairman of Aviation Co-ordination Services.

    Prior to joining PhiBon Capital, he worked at South African Airways where he specialised in Aircraft Acquisitions, including negotiating Leases, Engine Agreements and Aircraft Return Conditions, IT Contracts, Government Stakeholder Relations and all legal aspects of commercial aviation. Previously, he served as Company Secretary to the Board of South African Express Airways Limited and practised corporate law with Kampheerbeek, Twine and Pogrund, Maponya Inc. and at Philip, Silver, Sweden. He holds a B Proc degree from the University of the North and is a qualified attorney.



    June is a non-executive Director of ACS (Aviation Co-ordination Services) and CEO of the Board of Airline Representatives of South Africa which represents African and International Airlines in South Africa. June held a number of positions at KLM Royal Dutch Airlines and has extensive management experience across commercial and operational disciplines in the airline industry. She is a highly motivated business professional with 15 years’ board experience including at State-owned companies.

    Good corporate governance is a key area of focus and interest for June particularly in view of the broad range of stakeholders she interacts with. She is a long-standing member of the Institute of Directors of South Africa. She was appointed by the Hon. Minister of Transport to the position of non-executive director of the South African ANSP, Air Traffic and Navigation Services, a position she held from 2008 to 2012.

    June is also a board member of the Tourism Business Council of South Africa. She works closely with international organisations, government and private sector stakeholders to further develop a safe, efficient and sustainable aviation industry in South Africa.



    Chris Zweigenthal obtained a BSc in Civil Engineering at the University of the Witwatersrand in South Africa in 1978 and a Graduate Diploma in Engineering at the same University in 1985. From 1978 until 1988, he worked at the construction division of Transnet, and was responsible for the project management and construction of several large capital projects.

    At the end of 1988, Chris joined South African Airways, where he held senior positions in the Petroleum Affairs, Flight Operations and Marketing Planning departments. From November 1998 until October 2000, Chris was appointed Managing Director of SA Alliance Air based in Kampala, Uganda. In November 2000, he was appointed General Manager Global Passenger Services at South African Airways and later Vice President of the same department until he left South African Airways in November 2001.

    In February 2002, Chris joined the Airlines Association of Southern Africa (AASA) as Deputy Chief Executive and was appointed Chief Executive on 1 March 2009. He is also a Director of Aviation Coordination Services Limited, the company responsible for several airport services managed on behalf of all airlines operating in South Africa.


    General Manager Operations South African Airways

    Zukisa Ramasia is the General Manager Operations and a member of the executive team which provides a strategic leadership to the national carrier. Amongst her achievements involves ensuring operational efficiency through effective planning for on time departure and arrival, during normal and irregular operations and she has committed on quick turnaround processes by the identification of bottlenecks and is providing optimum solutions.

    She served as a member of the SAA Bid Adjudication Team, providing governance oversight on their tendering process. Under the insightful leadership of Zuks, SAA was named the World's Most On -Time Airline by “Flightstats”, a global leader in flight statistics through their 'On Time Performance Service Awards' programme. SAA was also named the “Best Airline in Africa” by SkyTrax at the Farnborough Air Show held in London in July 2014. This was the 12th consecutive time SAA received this award for the “Best Airline in Africa”.



    Busisiwe Mabuza holds a BA in Mathematics and Computer Science from the City University of New York and a MBA in Finance and Information Systems from New York University. Ms. Mabuza’ s financial services experience includes eight years in the fund management industry where she worked for Investec Asset Management as an Equity Analyst and Fund Manager.

    She worked in New York as an IT Systems Analyst for All Risk Management Systems. She has also been the Chairperson of The Industrial Development Corporation of South Africa Limited and served as the Non-Executive Chairwoman at Airports Company South Africa (ACSA). She has been an Independent Non-Executive Director of Development Bank of Southern Africa.


    Chartered Accountant and a Registered Auditor

    Nomagugu Mtetwa is a Chartered Accountant and a registered auditor. She holds a Bachelor of Commerce degree in Accounting from UCT. She qualified as a Chartered Accountant in 2004 and she is registered with SAICA. She is a Senior Executive with over 14 years’ experience in the Financial Services and Telecommunications industries, with specific expertise in Short & Long Term Insurance, Investment and Technology. Key areas of focus include Auditing, Risk Management, Financial Management, Public Finance Management (PFMA), International Financial Reporting Standards (IFRS), International Standards on Auditing (ISA), and Corporate Governance including the King Codes. Ms Mtetwa also has experience in real estate and aviation. She became partner at PwC in 2008.

Alternate Directors



    Vivendra (Vees) Lochan has been successful in obtaining a B.Com degree in Business Economics and Economics from the University of Durban-Westville in South Africa in 1979 and an MBA degree from the same University, which he completed in 1988.

    At the beginning of 1981, Vees joined South African Airways, where he held positions in Sales and Marketing and the Africa Route Management Division. During his tenure at South African Airways, he has attended and completed various executive aviation industry related courses.

    In 1993, Vees was appointed Regional Manager SAA Middle East and Gulf, based in Dubai, United Arab Emirates. He was tasked with the setting up the of South African Airways’ operations between Dubai and Johannesburg. In November 1998, he moved to India to be based in Mumbai where he was responsible for India and the Indian Sub-Continent. Vees returned to Johannesburg at the end of 2000 where he held a senior position in Domestic Marketing Support. He left South African Airways in August 2001 to pursue an interest in the tourism, investment and real estate fields.

    In August 2010, Vees joined the Airlines Association of Southern Africa (AASA) as Chief Operating Officer. AASA is the SADC airline representative Association dealing with strategic, aero political, regulatory, policy, financial and operational issues affecting its members. He represents AASA and its membership on Regulatory Committees and industry forums. Mr. Lochan is also Chairperson of the Audit Committee of Aviation Coordination Services Limited.


    Regional Manager: Southern Africa & Latin America at Air Mauritius

    Carla da Silva has 21 years’ experience in the aviation industry. She embarked upon her career, first representing South Africa as an international flight attendant for South African Airways (SAA.) From a flight attendant, she joined the airport ground crew where she fulfilled roles in public relations and reservations at South African Airways and The Royal Dutch Airlines, respectively. She then joined the Sales division of Air France South Africa, where I was exposed to Global & Key Account Management.

    After being head hunted, Carla joined SAA in the role of Key Account Manager. Core duties included, inter alia, account management of Top 100 JSE Listed Companies. She was then promoted to Senior Manager to head-up the Corporate Portfolio at SAA being responsible for a turnover of R1.7 billion; management of a staff complement of 10 direct reports and achieving 8% revenue growth performance in 2007 and 2008, ahead of 4% industry growth.

    In August 2007, Carla was promoted to Head of Global Sales & Distribution; SAA. Further responsibilities included: Direct Reports to 24 Heads of Regions, management of a global sales force, Government, Corporate, Trade, MICE, E-commerce and Call Centres for South Africa, Africa and all International SAA offices in Europe, Australasia and the United States.

    Carla currently heads-up Air Mauritius Southern Africa and Latin America. Her current portfolio entails responsibility for airport operations, sales and marketing, reservations and ticketing operations, finance and human resource management.

    Carla is a director of Aviation Co-ordination Services (Pty) Ltd (ACS); the Chairperson of the Board of International Airlines Representatives of South Africa (BARSA); a member of the Association of South African Travel Agents (ASATA); a member of the APJC Council of IATA (International Airline Transport Association) and a director of Air Mauritius SA (Pty) Ltd.

    She is involved with 2 specific charities and welfare organisations - Reach for a Dream Foundation and I am Worthy (www.Iamworthy.com), a welfare and charity that supports 1400 orphans and 700 abused women. In 2013 she initiated a mentorship programme for women within the aviation sector and in 2015 joined the Women’s Development Board, a programme initiated by the Airports Company South Africa (ACSA) and Board of Airline Representatives South Africa (BARSA).

    Carla has been a judge of CEO (Most Influential and Entrepreneurial Women & Men in Africa) since 2012. In 2014, she was awarded the Innovation Global Award by Air Mauritius Limited and in August 2015 she won the ELLE Boss Corporate Award as well as the Innovation Award by Air Mauritius Limited.


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