Its primary planet is also named Chimsa. It is controlled by the elSha race.
From the Books: "It was out of desperation that the operation was finally moved to the world of Chimsa. It wasn’t a far-flung and remote processing operation of the Wathayat. Chimsa was a heavily-populated planet of the elSha. A technology center that supplied goods all over the Union. Attacking Chimsa would be an act of borderline insanity." - Cartwright's Cavaliers, p. 154.