Stelco Holdings Inc. (known as U.S. Steel Canada from 2007 to 2016) is a Canadian steel company based in Hamilton, Ontario. Stelco was founded in 1910 from the amalgamation of several smaller firms. It continued on for almost 100 years, until it filed for bankruptcy in 2007 and was bought by U.S. Steel. In 2016, the company was sold to Bedrock Industries of the United States, which took the company public. The company made its debut on the Toronto Stock Exchange on Nov. 3, 2017.