The BC Coroners Service says workers at the Catalyst Paper Mill couldn't find 66-year-old Perry Thomas about a half hour after he arrived on Tuesday.
Thomas was reported missing and a search was launched.
His body was recovered Thursday from a container linked by a conveyor belt to the location where he was to dump the chips.
The coroner says the Qualicum Beach resident could not be resuscitated.
The service, the RCMP and WorkSafeBC are investigating the death.