GREENSBURG, Pa.-Polymer Enterprises Inc. has promoted Mark S. Grant to executive vice president and Ronald L. DeVivo to senior vice president of technical services at its Specialty Tires of America Inc. subsidiary.
Grant has worked for the company since 1984 in its commercial and manufacturing operations. He most recently served as vice president and general manager of manufacturing of specialty tires.
DeVivo has been with the tire maker since 1972 and has had manufacturing and technical responsibilities. He most recently served as vice president of technical services.