Jerry MacCleary, currently president and managing director of Covestro LLC and head of the company’s polyurethanes business unit in North America, will assume new responsibilities as chief executive officer and chairman of the board of Covestro LLC, effective February 1, 2018. MacCleary will be succeeded in his role as head of the polyurethanes business unit by Christine Bryant, currently head of coatings, adhesives and specialties. Dr. Erik Haakan Jonsson, currently chief operating officer, will succeed MacCleary as president and managing director of Covestro LLC.   MacCleary, who currently represents Covestro as-vice chairman of the board, is a member of the company’s executive committee, and an officer at the American Chemistry Council (ACC). He will become chairman of the ACC Executive Committee Jan. 1. MacCleary joined Covestro (then part of Bayer) in 1979 as an accountant, before embarking on a diverse career path that included sales, marketing and strategic management roles throughout the United States and Germany. In 2004, he was named head of the North American polyurethanes business unit – a role he maintained after becoming president of Covestro LLC in 2012. In 2015, he led Covestro’s North American business through its separation from Bayer AG and establishment as an independent company. Bryant has led Covestro’s coatings, adhesives and specialties (CAS) business in North America since 2012 and also leads the unit’s global key account business. She joined Covestro in 1989 and has held increasing roles in marketing, sales, distribution and business development throughout her career. A chemical engineer by training, her focus has been on creating stronger relationships with customers and developing new business and markets within the CAS area. She is also an advocate for STEM education and an active community leader, working closely with the United Way of Southwestern Pennsylvania, as the current co-chair of the Women’s Leadership Council. Jonsson joined Covestro in 1992 as a scientist in Pittsburgh. His career has led him throughout the US and Germany, as he took on diverse roles in manufacturing, innovation, supply chain and business development. He has served on the board of directors of various chemical industry, community service and educational organizations. He is a chemical engineer and holds his Ph.D. in polymer technology.