Coromesk is one of two planets located in the Skavac system. You visit this planet twice during storylines. The Mido Mining Plant is located here.
This article contains plot details about Galaxy on Fire.
You are given the coordinates by Carla when you are sent to rescue him from a band of pirates. When you first arive you are confronted with a Pirate Outpost which, although seemingly looks alone at first, spawns a lot of pirates one by one as you get closer. After killing enough of them one of the pirates give you the directions to Nosdron, where Khador is being escorted.
You are sent here to retrieve a Pareah Prism froma mining operation located here. Before they hand it over, however, you agree to help finish their last contract- 140 tons of Titanium that must be mined from the nearby asteroid field. You are then given the prism after successfully completing this task.