TAP was responsible for conceptual design, detailed engineering, procurement, construction, testing, and commissioning of the transmission system to the Mozal Smelter. The joint venture completed five transmission line sections (Arnot to Maputo, 400kV line; Camden to Edwaleni, 400 kV line; Maputo to Infuleni, 275kV; 2 x Maputo to Mozal, 132kV) for a total length of approximately 600km.
Also completed were six substations (Arnot 400 kV Extension to Maputo; Camden 400 kV Extension to Edwaleni II; Maputo 400/275/132kV Substation; Infuleni 275kV Extension to Maputo; Edwaleni II Substation).
Tropical cyclones and flooding in the area during construction caused TAP to change construction contractors to ones that were familiar with helicopter erection techniques. The helicopters were used to transport personnel and cast foundations to the jobsites and to erect the transmission line towers. A specialized earthworks and civil contractor with suitable equipment to repair and construct access roads was selected to facilitate access to the jobsites.