CO-WORKER WAS HANDING BUNDLE OF ROOF BOLT PLATES TO VICTIM AND THE BUNDLE BROKE, ONE OF THE TOP PLATES LACERATED HIS ARM. CAUSE OF THIS INJURY WAS AWARENESS AND PPE. COMPLIANCE WITH RULES/REGS WAS NOT A FACTOR, PERSONNEL PROTECTIVE EQUIP WAS A FACTOR, MINER PROFIENCY A FACTOR, MINING EQUIP/SYSTEMS NOT A FACTOR.