Gregory E. Thomas, Vice President of Supply Chain and Strategic Sourcing for Tronox Inc., has retired. Thomas joined Kerr-McGee Corp. in 1977 as a Management Intern and served in positions of increasing responsibility in the company’s coal, corporate and chemical groups. In 2005, in connection with the initial public offering of Tronox Inc., Thomas was named Vice President of Supply Chain and Strategic Sourcing. With Thomas’ departure, supply chain and strategic sourcing will remain part of the global operations group and will be incorporated into the existing responsibilities of current officers and staff.