Michael H. McGarry, 58, has become the new chairman and chief executive of PPG Industries. He has been with the company in various leadership roles for 35 years in the U.S., Europe and Asia. He was promoted to president and chief executive in September 2015. Last Sept. 1, he became chairman and CEO of the group, following the retirement of the company's executive chairman, Charles Bunch, after 37 years with PPG.