Komatsu brought its 30.9-ton HM300-5 articulated dump truck into compliance with the U.S. EPA’s Tier 4 Final emissions restrictions by adding selective catalytic reduction to exhaust gas ...

As you look at the dump trucks, hauling ore out of the largest open pit copper mine in the world, it's easy to think those trucks are small until you see one up close. "This is a Komatsu 930 SE ...