General Motors has announced executive changes to its Canadian operations.

John P. Roth, currently Vice President, GM Canada Marketing, Sales and Service, has been named President and Managing Director of GM Africa and Middle East operations, effective June 1.

Roth will be based in Dubai, United Arab Emirates and responsible for growing the Chevrolet, Cadillac, GMC and AC Delco business throughout the region. He replaces Mario A. Spangenberg who has elected to retire on July 1.

Replacing Roth as Vice President, GM Canada Marketing, Sales and Service is Scott Bell, currently Director of Sales Operations for Chevrolet in the U.S.

Bell will be responsible for marketing, sales and service across all four GM brands—Chevrolet, Cadillac, Buick and GMC.

Bell will report to Steve Carlisle, President and Managing director of GM Canada. He will also join GM Canada’s Executive Committee and GM Canada’s board of directors.

Roth will report to Alan Batey, GM executive vice president, president of GM North America, and head of GM Africa and Middle East operations, and Global Chevrolet.

Roth, 49, joined GM in 1991 and held a series of sales and marketing positions before becoming director of Sales Operations for Cadillac, HUMMER and Saab in 2008. He became Cadillac Regional Director in 2011 and was responsible for leading the field team supporting South Central Region dealers. He was named vice president of GM Canada Marketing, Sales and Service in 2013.

Bell, 51, joined GM in 1989 and has held numerous sales, service and marketing positions across the GM brands, including Fleet and Commercial and Buick GMC. During his time with Buick GMC, he held a series of field leadership roles before being appointed, Director of Sales Operations, where he was responsible for transforming the sales and dealer organizations to best position Buick GMC for future growth with the phasing out of Pontiac.