For the second time in less than three years, materials maker Nova Chemicals has a new CEO.
Danny Dweik will become interim CEO of Calgary-based Nova on Oct. 1. Dweik is a Nova board member and industrials head at Nova owner Mubadala Investment Co.
Dweik is replacing Luis Sierra, who became Nova's CEO in July 2020. In a news release, Nova officials said that Sierra is stepping down and will serve as a senior adviser to the firm, assisting with the transition.
Dweik sits on the boards of several North American industrial and business services companies and was formerly chief financial officer and CEO of aluminum maker Emirates Global Aluminium.
Sierra joined Nova from global energy firm British Petroleum, where he worked for 30 years, most recently as CEO of aromatic chemicals. Sierra replaced Todd Karran, who retired after a 35-year career with Nova. Karran is now CEO of petrochemicals for Heartland Polymers, a new polypropylene maker based in Calgary.
Nova is one of North America's largest polyethylene resin makers. The firm is wholly owned by Mubadala Investment Co. of Abu Dhabi. Nova employs almost 3,000 worldwide and has annual sales of $3.6 billion.