Concrete and quarry company FP McCann yesterday denied a charge of corporate manslaughter.
The company, which has its head office at Drumard Road, Knockloughrim, is charged with causing the death of Victor Nicholl on March 13, 2015.
It was reported that Mr Nicholl, who was 62, had been driving a 60-tonne dumper truck shortly before the incident at the quarry.
A representative of FP McCann, which manufactures and delivers concrete products, also entered not guilty pleas to three further charges under health and safety legislation, including failing to ensure the health and safety of employees.
It also denied failing to ensure that "there was a suitable restraining system for Victor Nicholl who was a person being carried by mobile work equipment at risk of being crushed by its rolling over".
The trial was listed for December.