 He was replaced as taipan by 40-year-old Simon Keswick, brother of Henry Keswick.During his Jardine chairmanship, Newbigging was also director of the Hongkong & Shanghai Banking Corporation and the Hongkong Telephone Co Ltd from 1975 to 1983, and the Wah Kwong Shipping Holdings Ltd (Hong Kong) and the Wah Kwong Maritime Transport Holdings Ltd (Hong Kong).Besides his company positions, he was also appointed to various public positions by the colonial government.