Ten more of these locomotives were built for the Otavi line by Société Franco-Belge and delivered in two batches of five in 1950 and 1953, numbered in the ranges from NG120 to NG124 and NG132 to NG136 respectively [REF].
In 1958, five more of these locomotives, built by Henschel and numbered in the range from TC1 to TC5, were delivered to the Tsumeb Copper Corporation for use by the SAR in terms of an agreement between the SAR and the Corporation.