EPEX 2023: OPI’s 60th Conference and Trade Show

^{May 31 to June 2, 2023}

Best Western Lamplighter, London, Ontario + Virtual

EPEX 2022: OPI’s 59th Conference and Trade Show

^{May 31, 2022}

Ramada, London, Ontario + Virtual

EPEX 2021: OPI’s 58th Conference

^{June 8th, 2021}

Virtual Delivery

EPEX 2019: OPI’s 57th Conference and Trade Show

^{April 29th & 30th, 2019}

Best Western Plus Lamplighter Inn & Conference Centre, London, Ontario