Original sentence: The Titan division was retained, when Terex was sold to IBH group of Germany, and on there collapse in 1983 then passed to Canadian company Northwest Engineering Group in 1986 who became the Terex Corporation of today
Edited sentence: The Titan division was retained, when Terex was sold to IBH group of Germany, and on their collapse in 1983 then passed to Canadian company Northwest Engineering Group in 1986 who became the Terex Corporation of today