Dwayne J. Roark has been appointed Business Communications Manager for Dow Biocides and ANGUS Chemical Co.

National Coatings Corp. has appointed Jeff Poe as a Technical Sales Representative.

Sun Chemical has named Myron Petruch President, Performance Pigments.

Ken Moran has been named Vice President for the coatings division of Cook Composites and Polymers Co.

After a 39-year career in the paper and chemical industries, Gerald C. Marterer, President and Chief Executive Officer, will retire from Arizona Chemical.

DuPont has named Lewis E. Manring Vice President of Technology for its Coatings & Color Technologies business segment.

Harri Kämppä has been appointed Global Supply Chain Director of CPS Color and a member of CPS Color Group Oy’s management team.

Emerald Performance Materials has appointed Edward T. Gotch President of its Emerald Kalama Chemical business unit.

Plasticolors Inc. has announced the appointment of Elizabeth Campbell as Thermoset Plastics Sales Manager.

Susanna Aaltonen has been appointed Vice President, Communications, and a member of the Tikkurila Management Board.