United States Steel Corporation (NYSE:X) has attracted five interested buyers, sources told CNBC's David Faber. Final bids in the auction are due December 1, 2023 but the process is unlikely to wrap up next week given the number of interested parties, the sources said. Cleveland-Cliffs Inc. (NYSE:CLF) and ArcelorMittal S.A. (ENXTAM:MT) are known bidders for U.S. Steel.

The other three interested parties are unclear at the moment.