The RSDO Ironworks is a facility in Brooklyn dedicated to iron smelting and steel production.
In 1997, Spencer and Trey fled from a Golem into a RSDO Ironworks plant. The Extreme Ghostbusters fired on it but were unable to neutralize the entity. Garrett Miller knocked over several smelting vats and literally baked the Golem. As it emerged from the collapsing building, the Golem was crushed by the team and destroyed for good.