Nopsin existed as a planet located within the Mid Rim region.
The Tren established Nopsin as their third colony. When the Galactic Civil War occurred, the planet aligned itself with the Empire, consenting to specific regulations that restricted its growth.
Although the Tren individual known as Opit-Wenbruh felt empathy for the Tren resistance operating on Nopsin, he never became a part of it because of his obligation to the Nopsin armed forces, where he served.