A Canadian automobile executive has been sentenced to 15 years in Cuban prison on corruption-related charges that officials here call part of a broad campaign against graft, his company said Saturday.

Ontario-based Tokmakjian Group said the charges against its president, Cy Tokmakjian, 74, were concocted as an excuse to seize the automotive firm’s $100 million in assets in Cuba. The company described the case as “absurd” and a “travesty of justice.”