KMB services stopped operating during the Pacific War and Japanese occupation. After the war, Louey largely expanded his company from about a hundred vehicles to more than seven hundred. Before his death, he ordered more than a hundred buses from the United Kingdom, bringing the fleet size to 895. Louey also experienced a few new company's change of policies. In early December 1962 when the workers took the industrial action, Louey later on announced to raise the wage of the bus drivers.
