 Under Greenbrier's ownership, the Trenton railcar plant and forge were operated much as before, however railcar manufacturing at Trenton increased dramatically during the late 1990s and early 2000s as the North American freight car fleet underwent significant expansion and replacement; Canada's record low exchange rates made Trenton a very profitable and low-cost production facility for Greenbrier during this time.Canada's rising exchange rate and decreasing demand for new railcars by the mid-2000s saw Greenbrier consolidate its operations.The TrentonWorks Forge (a separate operation from the railcar plant) was sold to Forged Metal Products Inc. of Houston, Texas in 2004, which renamed the operation to Nova Forge Corporation.