Gromas was an astronomical object located in the Perkell sector of the galaxy's Mid Rim. It was the location of an Imperial depot and supported a mining operation for phrik, a metallic compound that was nearly indestructible. In the year 14 BBY, the Imperial Joint Chiefs believed Gromas' depot was a possible target for former Republic Intelligence captain Berch Teller and his rebel cell and dispatched a task force to defend the installation. The rebels learned of this, however, and attacked Phindar instead.
Gromas was first mentioned in the new Star Wars canon in Tarkin, a novel written by James Luceno and released on November 4, 2014. It later appeared on the galaxy map included in the Star Wars: The Force Awakens Beginner Game, which was released in August of 2016. The roleplaying game placed the planet on grid square Q-7.