China has a long history of building and maintaining Tanzanian infrastructure, most notably the Tazara railway, which was built in the first half of the 1970s.
One track covers a 25km (15.5 miles) journey between Dar es Salaam's Mwakanga and Tazara railway stations and the second track runs for 20km (12.4 miles) between Ubungo-Maziwa and City railway stations.