Nag Ubdur was a planet located in the Ubdur system of the the galaxy's Outer Rim Territories. It was inhabited by Ubdurians. Binjai-Tin was considered to be a large merchant city on the planet. Up until a few months after the Battle of Endor, the planet was under the control of the Galactic Empire, who strip-mined the world for zersium. Sometime after the Rebellion on Akiva, the New Republic attempted to liberate the world, but was met with an increasingly-desperate Imperial defense.