A holder of a South African driver’s license can apply for a Korean driver’s licence whilst in the country. For more information in this regard, please contact directly the Korean Driver's Licence Office near your place of residence. For further information you may visit their website at : http://dl.koroad.or.kr/license/en/index.jsp
The other requirement that they may need is a certified copy of your originals South African driver’s licence by the Embassy in Seoul. You may mail your original driver’s licence to the Embassy together with your written request and a pre-paid self-addressed envelope (registered mail or safe way) in order to return your documents after processing.
For information, the Department of International Relations and Cooperation