Complex sentence: There were also a number of DMS/DM buses being sold for export, many departing for the far east in Hong Kong, besides, nearly 50 vehicles found operations in the USA for open-top sightseeing work.
Split into simpler sentences: There were also a number of DMS/DM buses sold for export, many departing for the far east in Hong Kong. In addition, nearly 50 vehicles found operations in the USA for open-top sightseeing work.