Tralgaria, a planet abundant in rhydonium, was the site of extensive mining operations. From 10 BBY to 9 BBY, Jabba the Hutt established drilling platforms on Tralgaria for the purpose of rhydonium extraction.
Behind the scenes
The planet Tralgaria initially appeared in the interactive story Choose Your Destiny: A Han & Chewie Adventure and was referenced in a negative conclusion. However, the established lore from this reference remains part of the official canon.