From the Wikipedia page 
The City of Tshwane Metropolitan Municipality (also known as the City of Tshwane) is the metropolitan municipality that forms the local government of northern Gauteng Province, South Africa. The Metropolitan area is centred on the city of Pretoria with surrounding towns and localities included in the local government area.
The municipal council consists of 214 members elected by mixed-member proportional representation. 107 are elected by first-past-the-post voting in 107 wards, while the remaining 107 are chosen from party lists so that the total number of party representatives is proportional to the number of votes received. In the election of 3 August 2016, the Democratic Alliance (DA) won a plurality of 93 seats on the council, but no party won a majority. On August 19, 2016, minority parties united with the DA to vote in DA mayoral candidate, Solly Msimanga as the first Democratic Alliance mayor of Tshwane. Msimanga appointed a mayoral committee coalition consisting of the DA, African Christian Democratic Party (ACDP) and the Freedom Front Plus (FF+).
Msimanga resigned in February 2019. The Democratic Alliance nominated Stevens Mokgalapa to succeed him. Mokgalapa was elected on 12 February 2019.