Harper Corporation of America announced that Gregg W. Pearce has joined its team as the company’s new corporate purchasing manager. Mr. Pearce is responsible for managing and directing all purchasing functions for Harper Corporation of America in the U.S.      “Obviously I am very excited to be working at Harper. This is a position where I can really make a difference in the bottom line,” said Mr. Pearce. “The people here are first-class, and I am looking forward to a long career with Harper....