The business was sentenced under the Health and Safety at Work Act 2015 for failing to ensure the health and safety of workers. The maximum penalty is a fine of $1.5 million.
WorkSafe said the product should not have had to be decanted at all, and it was reasonably practicable for the product to be hardwired and plumbed.
WorkSafe's investigation found the company had also failed to identify risks and put in place suitable controls, failed to ensure the availability of protective equipment and failed to have an effective system in place to monitor the equipment's use.
"Protective equipment should not be the go to safety solution for using hazardous substances," WorkSafe's Simon Humphries said.
"If there is a smarter and safer way of doing a job, and it is reasonably practicable for it to be implemented then that is the expectation of the Health and Safety at Work Act."