Calgon Carbon adds board member
Calgon Carbon Corp. appointed John J. Paro to its board of directors. Since 2009, Paro, 57, has served as chairman, president and chief executive officer of HallStar, a privately held specialty chemical company.
Calgon Carbon Corp. appointed John J. Paro to its board of directors. Since 2009, Paro, 57, has served as chairman, president and chief executive officer of HallStar, a privately held specialty chemical company.