Shu Mai was a female Gossam native to the planet Castell, who served as the Presidente of the Commerce Guild prior to and during the First Multiverse War. She was one of millions of Gossam devastated during the economic depression on her homeworld dozens of years before the rise of the Empire, and after they were saved from their hardship by the Commerce Guild, Mai gained a position as Chief of Property Resources for the Guild, and was eventually promoted several more times. Using shrewd and sometimes unscrupulous tactics, Mai eventually brought the Gossam out of their financial troubles, before repurchasing Castell—only so she could raise rent even more and demand tribute from her people. Impressed with her entrepreneurial nature and shrewd business awareness, the Commerce Guild then elected her as their Presidente. She was killed along with the rest of the leadership of the Confederate Remnants during the Remnant Wars.