UPakati ukwathe isixeko sixakekile , similisela iiprojekthi zezindlu ezingamashumi amabini anesithoba , nezixabisa amakhulu amabini anamashumi amahlanu anesithoba ezigidi zeerandi ( R259 million ) , ePotsdam Ikhwezi Block 1 , eMdantsane Zone 18cc nesigaba sesithathu eTyutyu .