The Valsedian asteroid belt was an ore-rich asteroid belt located deep within Hutt Space.
Ugnaught miners working in space suits inside the largest asteroid of the belt
During the Clone Wars, the Valsedian asteroid belt contained a hidden base owned by the Hutt Cartel. The base served as a mining facility where Ugnaught workers processed ore extracted from the asteroids in the belt. The base was guarded by a group of individuals hired by Count Dooku, who had access to everything the facility had to offer, including a wine cellar that contained Ugnaught wine.
During the Clone Wars, the Valsedian asteroid belt was suspected to have been sold to the Confederacy of Independent Systems by Torpo the Hutt, in breach of the terms of a treaty between the Hutts and the Galactic Republic. In response, the Jedi Order set up a mission to investigate this matter.
During the Galactic Civil War, the Rebel Alliance established a base in the Valsedian asteroid belt. The base was later decimated by the Galactic Empire. As a reward for this success, Admiral Gaen Drommel would eventually be given command of the Executor-class Star Dreadnought Guardian.