Tags: Trade Union.
The Ontario Public Service Employees Union (OPSEU) is a trade union that represents about 120000 employees in the broader public service of the Province of Ontario Canada. The current president of OPSEU is Warren Smokey Thomas. Prior to Thomas OPSEU was headed by Leah Casselman. Casselman was the President of OPSEU for 11 years and was re-elected five times. She saw the union through the most eventful time in its history.