Evonik Degussa Corp. has appointed Bonnie Tully as vice president and site manager for the company’s Mobile, Alabama operations, effective March 1, 2011. Tully will take over from Tom Bates, president of Evonik’s North America region, who will now concentrate on the growth and development of Evonik in North America. Tully is currently plant manager for Evonik’s lubricant additives facility in Singapore. Tully began her career with Rohm & Haas in 1993 as a project engineer in Houston, Texas, transferring to the RohMax joint venture in 1996. Since then, she has worked in a wide range of engineering and manufacturing assignments of increasing responsibility. She accepted an overseas assignment in Singapore in 2006.