Alexander Dennis is a Scottish bus building company based in Larbert, Scotland. The largest bus and coach manufacturer in the United Kingdom, Alexander Dennis has manufacturing plants and partnerships in Canada, China, Europe, Hong Kong, Malaysia, New Zealand, Singapore, South Africa and the United States. In early 2016, Alexander Dennis had a 44% market share in the United Kingdom. Alexander Dennis was acquired by Canadian bus manufacturer and former joint venture partner NFI Group in May 2019.
Before Hong Kong has implemented the EU Phase VI environmental protection standards, the bus could continue to be equipped with Cummins ISL 320 horses of the EU Phase 5 environmental standard engine. This model continued to be equipped with Voith DIWA 864.5 four-speed gearbox or ZF EcoLife 6AP1403B8 Forward speed gearbox.