It was specifically designed for contemporary operating environment (hilly roads and "one-man-operation" with a farebox) in Hong Kong.

Kowloon Motor Bus (KMB) received four Dennis Jubilant prototypes for evaluation, they were fitted with KMB's own bodywork (utilising parts from British Aluminium Company) and entered service in 1977/78.

[2][3][4][5] China Motor Bus (CMB) in Hong Kong ordered 30 Dennis Jubilants with Alexander CB bodywork, they entered service in 1980.

[7] Kowloon Motor Bus also received one air-conditioned Jubilant coach with Alexander KB bodywork and put it into service in 1980.

Kowloon Motor Bus also had two of its Jubilants prematurely withdrawn, and in 1994 started to withdraw the rest.