Jan Willem Dreyer

VenFin Ltd. (VenFin) is an independent South African investment firm which was formed in 2000 when Johann Rupert restructured Rembrandt Group Ltd. VenFin focuses on high-growth investment opportunities, aiming to add value to investments through their close relationships with the Rupert group, as well as through their networks of formal and informal alliances with venture capitalists in major global markets. They also provide treasury services, other facilities and financial and risk management services on a voluntary participation basis to their investee companies. Based in Stellenbosch, the firm has created the InVenFin fund to assess and invest in unique early-stage intellectual property opportunities in South Africa. They are a responsible corporate citizen which donates to a variety of community development, entrepreneurship and training, sport development, health care and environmental programs.

Dorbyl Ltd. engages in the manufacture and market of spheriodal graphite and grey iron castings. It manufactures spheriodal graphite and grey iron castings for automotive, mining, overhead line manufacturers, rail, energy, pumps and valves and general engineering businesses. The company is headquartered in Benoni, South Africa.

Trans Hex Group Ltd. engages in the exploration, mining, and marketing of diamonds from land and marine alluvial deposits. It operates through the following geographical segments: South Africa and Angola. The company was founded in 1965 and is headquartered in Cape Town, South Africa.

Part of Remgro Ltd., Wispeco Holdings Pty Ltd. is a South African company that manufactures and distributes aluminum extrusions. The company is based in Alrode, South Africa.

Rand Merchant Bank provides banking services. The company was founded by Laurie Lanser Dippenaar, Gerrit Thomas Ferreira and partick Maguire Goss in 1977 and is headquartered in Johannesburg, South Africa.