03:22 pm, Thursday 16 September, 2010
WorkSafe is prosecuting the company for its alleged breaches of the Occupational Health and Safety Act.
The safety watchdog alleges the company allowed its drivers to work for more than 17 hours a day during a 24-hour period.
WorkSafe also alleges that the company, which regularly transports products from Geraldton to Karratha six days a week, allowed drivers to work without the appropriate medical certification.
The firm has been convicted of similar breaches on two previous occasions.
The Geraldton Magistrates Court is expected to hear the case on October 21.