is a pilot city for rehabilitation studies following years of pollution. To this end it has already struck up strong relationships with other cities worldwide with similar backgrounds, and has begun plans, for example, to develop a tourism base focused on steam engine technology with antique locomotives to be used along designated tracks.

Datong has a large railway locomotive works, the 'Datong locomotive factory', opened in 1954. The works are notable as the main producer (~4,689 of