A. Schulman, a $1.6 billion plasticsmanufacturer in Akron, Ohio, said its controller, DonaldMcMillan, will take on the additional title of chiefaccounting officer. McMillan is also interim principal financialofficer, a role he has been performing since Paul DeSantis left thecompany in February. Chief accounting officer is a new position forthe company. McMillan, 51, has served as A. Schulman's controllersince 2006, and has worked in finance throughout his 15 years withthe company. Before joining A. Schulman, he worked in publicaccounting.

Black Hills Corp., a $1.3 billion energycompany in Rapid City, S.D., named Brian Iversontreasurer and vice president. He replaces GarnerAnderson, who continues to serve as chief risk officer andvice president. Iverson, 48, most recently was the company's vicepresident of electric regulatory services. Since joining BlackHills in 2004, he has worked in the legal, regulatory and resourceplanning areas. Prior to joining the company, he worked in law andbanking.

Titan Machinery, a $1 billion maker ofconstruction and agricultural equipment in West Fargo, N.D., namedMark Kalvoda CFO. He replaces PeterChristianson, who remains with the company as presidentand COO. Kalvoda, 39, has served as chief accounting officer sincejoining Titan in 2007. Earlier, he spent three years at AmericanCrystal Sugar, including stints as controller and assistanttreasurer, and worked in finance at Hormel Foods.