The first 10 locomotives are being built by CSR Zhuzhou Electric Locomotive in China, while the remaining 85 units will be assembled in South Africa by Transnet Engineering. CSR is a 70% partner in CSR E-loco Supply, with local partner Matsetse Basadi holding the remaining 30%. The contract specifies a target of 60.5% for localised content.

The 3MW Class 20E is equipped for operation on 25kV ac and 3kV dc electrification systems and will be used by TFR's general freight business.

Transnet says the two locomotives have been delivered a month earlier than expected, and it expects a second consignment of four units to arrive in South Africa next month.