The tournament, played under the auspices of the International Tennis Federation (ITF) and Confederation of African Tennis (Cat), features 19 countries competing in the under-18 boys and girls event, starting on Monday. It is hosted by the North West University.
Coaching the South African teams are former South African Davis Cup players John Laffnie De Jager and Pietie Norval.
South Africa have won the title 18 times and the SA Tennis Association's (Sata) CEO Ian Smith said he was delighted that Potchefstroom could host the junior event.
"The tournament offers South African players additional opportunity to earn top grade world ranking points on their doorstep," Smith said.
"We already have a healthy crop of junior players represented on the ITF World Rankings and this event will enable them to improve their positions, which will assist them with their efforts for the remainder of the year."
The boys and girls will play in a singles and doubles tournament, with players able to play with partners from other countries in the doubles.
The tournament is an ITF world ranking event.
Boys: Wayne Montgomery, Matthew Rossouw, Adriaan du Toit, Ronnie Myburgh and Christiaan van der Bergh.
Girls: Lynn Kiro, Madrie le Roux, Ilse Hattingh, Theresa van Zyl, Jessica Simpson.