The concession is located within the province of Mpumalanga, South Africa, with Nelspruit being the capital of the province. It is adjacent to the Kruger National Park and the neighbouring country of Mozambique.Sembcorp Silulumanzi’s concession area covers the city of
Mbombela City, and the main Nsikazi townships of Kanyamazane, Tekwane, Msogwaba and Matsulu. The service coverage also extends to other peri-urban areas around these townships, such as Zwelisha, Mpakeni and Luphisi. The area is under the jurisdiction of Mbombela Local Municipality.
The concession area covers a total population of approximately 350,000 people.
Sembcorp Silulumanzi abstracts all of its raw water supply from the Crocodile River catchment.
The source of the Crocodile River is at Dullestroom. The Crocodile River joins with the Lunsklip River before entering the Kwena Dam from which it flows through the Schoemanskloof mountains. The Elands River, a major tributary of the Crocodile River, originates at Machadodorp and flows through Watervalboven before meeting with the Ngodwana River. The Crocodile River and Elands River meet at Montrose.