Sir George Fisher was Chairman of Mount Isa Mines Ltd. during the company's major expansion of coper and silver-lead-zinc production from 1953 to 1970. From 1925 to 1951, apart from a period on war service construction in Darwin, he worked for the Zinc Corporation at Broken Hill rising to become General Manager and Director. He was the inaugural President and one of the founders of the Australian Mining Industry Council. He was President three times and also Vice-President and Councillor of the Australasian Institute of Mining and Metallurgy (AusIMM), and was a Director of the Australian Industry Development Corporation. He has also served as Chancellor at James Cook University of North Queensland.