LyondellBasell, one of the world’s largest plastics, chemical and refining companies, has announced several senior leadership changes.

After four years with LyondellBasell, Timothy D. Roberts, executive vice president of global Olefins and Polyolefins is set to quit the company. Roberts will be succeeded by Daniel M. Coombs, who joined LyondellBasell last year as executive vice president of global intermediates and derivatives, technology and procurement. Coombs brings 30 years of experience in petrochemicals, including leadership roles in commercial, manufacturing and joint ventures in the Middle East, according to a press release.

James D. Guilfoyle, currently senior vice president, global intermediates and derivatives, will continue in his current role while assuming additional responsibilities for the company’s supply chain activities.

Coombs holds a Bachelor of Science degree in chemical engineering from The Ohio State University, a Master of Science degree in chemical engineering from the University of Tulsa and an MBA from Texas A&M University.

Guilfoyle holds a Bachelor of Science degree in chemical engineering from the University of Cincinnati, a Master of Science degree in chemical engineering and an MBA from the University of Houston.

As part of this transition, LyondellBasell will further expand its regional leadership by appointing Paul Augustowski as senior vice president of Olefins and Polyolefins in the Americas. Augustowski has over two decades of experience in Polyolefins, in the US and Europe. Richard Roudeix will continue as the European Olefins and Polyolefins business leader. Augustowski and Roudeix will report to Coombs. (GK)