Veolia ES Canada Industrial Services and an onsite supervisor made their first appearances in Provincial Offences Court Friday morning.
They're charged in a deadly explosion at Veolia's Scott Rd. plant in October 2014.
Both parties will be back in court January 8 for further disclosure and instruction.
Veolia faces six charges under the Occupational Health and Safety Act including two counts of failing to take every precaution reasonable for the protection of a worker.
It's alleged the company did not cease the metalizing process at the workplace after being warned of hazards by its engineers and failed to ensure the dust collector was suitable for the process.
An individual is also charged under the act as a supervisor.
Six people were sent to hospital, five with serious injuries, following the explosion October 25, 2014.
Jason Miller, 37, later died of severe burns.
The blast originated in a dust collection system outside of the paint shop, damaged a section of cinder block wall and caused part of the roof to collapse.
