D. Randy Harrison is Senior Vice President, Organization and Human Development. 

Mr. Harrison joined the Company in March 1987 as a Market Development Manager. In July 1990, he was promoted to National Sales Manager, Paper PCC. In 1994, Mr. Harrison was promoted to Director of Sales, Paper PCC, and in 1997 promoted to Director of Sales & Marketing, Paper PCC. He was named Vice President, Marketing, in 1999 and promoted to Vice President and Managing Director of Specialty Minerals, PCC in 2001. January of 2002 through December 2007, Mr. Harrison was Vice President and Managing Director, Performance Minerals, and became an Officer of the Company and a member of the MTI Leadership Team.

Mr. Harrison holds B.S. degrees in Biology and Chemistry from Olgethorpecom University, graduating magna cum laude in 1976; he attended Penn State University, where he received a Masters in Chemistry. Before joining the Company, he worked for American Cyanamid Company from 1978 to 1987.  

He is a member of the Paper Industry Management Association and Technical Association of the Pulp and Paper Industry organizations.