 PITTSBURGH, Aug. 16, 2021 GLOBE NEWSWIRE -- IIVI Incorporated Nasdaq: IIVI II-VI or the Company, a leader in engineered materials and optoelectronic components, today announced that Francis J. Kramer, II-VIs current Board chair and former CEO, will transition to Chair Emeritus while continuing as a director, effective immediately following the annual meeting of II-VI shareholders in November, 2021, and that Dr. Vincent D. Mattera, Jr., II-VIs current Chief Executive Officer and a director, will become Chair of II-VIs board of directors at that time. 