Mr. Grebey joined Tronox in April 2012. Prior to Tronox, he was the senior vice president, corporate and consumer practice lead, and New York general manager for the public relations agency Waggener Edstrom Worldwide. Earlier, he was vice president of communications and marketing for Sikorsky Aircraft, a division of United Technologies Corp. He has also held senior communications positions with Siemens Corporation, Webvan.com, Levi Strauss & Company, and Kenetech/U.S. Windpower. In those posts, Mr. Grebey directed communications across the lifespan of a corporation — from IPOs, mergers and acquisitions, and international brand development, to litigation, labor relations, downsizing, and bankruptcies. He began his career in Washington, D.C., serving as a press secretary and chief of staff in the U.S. House of Representatives. He also served as a government affairs consultant to the Foreign Ministry of Japan. Mr. Grebey holds a Bachelor of Arts degree in political science from Kenyon College.