Shu Mai is the Gossam Presidente of the Commerce Guild, introduced in Attack of the Clones (2002) among the cartel leaders who commit their forces to the Confederacy, and killed on Mustafar in Revenge of the Sith (2005).
The Commerce Guild's contribution to the Separatist war effort is its own security apparatus — the guild fielded armed forces of its own long before secession, which is the detail that makes the corporate bloc's defection militarily serious rather than symbolic.
Catalogue entry. This figure has a verified record here rather than a full write-up — the encyclopedia labels its own depth instead of padding it.