 Although the larger airport was built to grow the area's international services, it is also a key airport for domestic services throughout South Africa, serving the "Golden Triangle" between Cape Town International Airport, O. R. Tambo International Airport in Johannesburg, and KSIA itself with 7 passenger and 2 cargo airlines offering domestic air services.KSIA was the 9th busiest airport in Africa according to 2010 statistics, despite not being open for the first four months.The airport forms part of the Dube TradePort, which will additionally consist of a trade zone linked to the airport's cargo terminal, facilities to support the airport such as nearby offices and transit accommodation for tourists, an integrated agricultural export zone, and an IT platform.