Aermacchi MB.326, Brazilian Users

When the Brazilian government bought the Dassault Mirage III, they needed a jet trainer that could get along together, so, as the MB-326 was adequate, they bought a license to be locally produced by the Brazilian Embraer. The Brazilian version was called EMB-326 Xavante or AT-26 Xavante, with the AT meaning its double purpose of training and light ground attack.
They entered service with the Brazilian Air Force in 1972 and they were produced locally until 1981, being the first airplane in history to be locally produced in Brazil. Embraer built 166 for the Força Aerea Brasileira (Brazilian Air Force) exporting six of them to Togo and ten of them to Paraguay plus eleven of them were sold to Argentina to replace their casualties in the Falklands War.
The light attack version, the MB-326K (AKA Atlas Impala) was also used as they were bought from South Africa. They remained in active service until December 2010 when the withdrawal process was started and they were finally replaced in 2013 by the Embraer EMB-314 Super Tucano.

Sources:
1. https://en.wikipedia.org/wiki/Aermacchi_MB-326
2. https://pt.wikipedia.org/wiki/Aermacchi_MB-326 (translated)