U.S. Steel Corp. appointed Bryan Lewis as vice president and chief investment officer to manage the company's global pension obligations.

Lewis will report to Executive Vice President and CFO Kevin Bradley, the company said Aug. 5.

U.S. Steel posted a 68.2% yearly decrease in second-quarter net profit to US$68.0 million, or 39 cents per share, from US$214.0 million, or US$1.20 per share.