Boeing [BA] on Thursday said that Chris Raymond has been named president and CEO of the company’s $18 billion Global Services segment, succeeding Stephanie Pope, who was previously announced as Boeing’s new chief operating officer (COO).

Raymond, who is currently the company’s chief sustainability officer, will lead Global Services effective Jan. 1, 2024, the same day Pope becomes COO. He will report to Pope and continue to serve on Boeing’s Executive Council.

“Chris brings more than 30 years of Boeing expertise in nearly every aspect of our operations, and has strong employee, customer and supplier connections across our commercial and government markets,” Pope said in a statement.

Raymond has been the company’s chief sustainability officer since October 2020. Before that, he was vice president of sustainability, strategy, and corporate development, and has also led autonomous systems with Boeing’s Defense, Space, & Security segment.

Raymond will be succeeded by Brian Moran, who is currently vice president for global sustainability policy and partnerships.

“With more than 20 years of Boeing service, Brian has wide-ranging expertise within nearly every aspect of our operations and businesses, including a deep understanding of and commitment to our partners and stakeholders around the globe,” Dave Calhoun, Boeing’s president and CEO, said in a statement. “Sustainability is a key priority at Boeing, and I am confident under Brian’s leadership, our team will continue to elevate our focus and enable our company and our industry to achieve a more sustainable aerospace future.”

Moran will be based in Amsterdam. He will report to Calhoun and serve on the Executive Council.