Mack Showcases Natural Gas-Powered MACK® Pinnacle™ Built for UPS at MATS Truck Displayed in Mack Booth #30245 LOUISVILLE, KY (March 21, 2013) – Mack Trucks today unveiled its highly anticipated 12-liter natural gas-powered MACK® Pinnacle™ Axle Back model during the 2013 Mid-America Trucking Show. The natural gas-powered Mack Pinnacle, offering a liquefied natural gas (LNG) solution for on-highway applications, was built for UPS (NYSE: UPS). The addition of the natural gas-powered Pinnacle expands Mack’s natural gas line-up to the highway segment. Mack already offers natural gas-powered MACK® TerraPro™ Low Entry and MACK® TerraPro™ Cabover refuse models, and later this year, plans to introduce a natural gas-powered version of the MACK® Granite® model. “Mack began offering natural gas as an option as soon as it was clear the solution made sense for the refuse market,” said Kevin Flaherty, president, Mack Trucks North American Sales & Marketing. “The introduction of the natural gas-powered Mack Pinnacle expands our experience and expertise into another market segment, and serves as an example of our commitment to developing solutions meeting the needs of customers like UPS.” “By expanding the UPS natural gas fleet, we have an opportunity to take advantage of a domestic resource, a domestic product and continue our sustainability efforts,” said Mike Britt, director of alternative fuel vehicle engineering at UPS. “Supporting the overall growth of LNG infrastructure ultimately benefits our customers and community by reducing greenhouse gas emissions.” Ideal for regional haul and LTL, the Mack Pinnacle is equipped with the Cummins Westport ISX12 G engine and available for order with either an LNG or compressed natural gas (CNG) fuel system. The maintenance-free aftertreatment, requiring only a three-way catalyst to meet EPA 2010 and CARB emissions standards, combined with low-cost natural gas, reduces vehicle lifecycle costs and thereby improves customers’ return on investment. We buill this CXU632 the beginning of February. I understand we have some orders from another customer.