 These companies are big players in the Canadian industry which ranks 7th globally but rely mostly on assets in foreign countries (Barrick Gold alone produced 209.79 tonnes of gold in 2009, Canada produced 100 tonnes).In fact 75% of the world's mining companies are headquartered in Canada.Canada's biggest undeveloped gold deposit is the Kerr Sulphurets Mitchell copper-gold property in northwestern British Columbia; It holds 38.2 million ounces of gold (2P reserves steady in 2012, up 27% in 2011).