Coles Group Limited is an Australian public company operating several retail chains. Its chief operations are primarily concerned with the sale of food and groceries through its flagship supermarket chain Coles Supermarkets, and the sale of liquor and petrol through its Coles Liquor and Coles Express outlets. Since its foundation in Collingwood, Victoria in 1914, Coles has grown to become the second-largest retailer in Australia after its principal rival Woolworths in terms of revenue.