Hyperbarides, a specific kind of mineral, existed on Mimban, a planet within the Circarpous sector. This made Mimban a point of focus for the Galactic Empire, which was interested in mining the mineral. The 224th Imperial Armored Division provided military backing for the perilous energy mining methods used to extract hyperbarides. Platt Okeefe suggested hyperbarides, along with meleenium and durelium, as lucrative items for smugglers to transport in Maz Kanata's Smuggler's Guide, a pirate.
The reference book Solo: A Star Wars Story The Official Guide, authored by Pablo Hidalgo and released in 2018, was the first time hyperbarides were mentioned in canon.