Terex Corporation Announces Debut of Unit Rig MT-3300 AC Drive 150-Ton Haulage Truck at IMERYS.

Business Editors

WESTPORT, Conn.--(BUSINESS WIRE)--April 24, 2001

Terex Corporation (NYSE: TEX) announced today that Unit Rig, a division of Terex Mining, has successfully launched its new 150-ton payload model MT-3300 AC drive haulage truck at the IMERYS mine in Sylacauga, Alabama. The four giant trucks, sold and delivered to IMERYS in December 2000, were formally commissioned in special ceremonies at the historic marble quarry, a notably difficult operating environment with high rolling resistance and continuous steep grades.

The 40-foot-long MT-3300, a unique hauling vehicle, is the only AC drive truck of its size in the world. It was designed to compete in a market that has historically used mechanical drive trucks. The major benefits of Terex's groundbreaking new model include substantially lower operating costs, superior power-to-weight ratio, higher sustainable speeds on grade, and improved downhill performance when loaded or unloaded. Among the MT-3300's other striking characteristics are state-of-the-art operator comfort and safety benefits including full roll over protection system (ROPS) and falling object protection system (FOPS) along with tailgating protection - an exclusive Unit Rig feature. The new AC drive truck is also environmentally friendly, free of mechanical transmissions and other components that rely heavily on the use of polluting oil for wear protection and cooling. This reflects the MT-3300's marriage of the successful General Electric AC drive systems with the proven MT design series found in larger Unit Rig trucks with payloads up to 360 tons. The addition of a 1,800 horsepower Detroit Diesel Company engine ensures that the MT-3300 is the equivalent of "a pedigree race horse" in the 150-ton payload class. According to the manufacturer, "with more horsepower than other 150-ton competitors, the MT-3300 is a truck be reckoned with. Nothing quite compares with its uphill and downhill performance."

To celebrate the new trucks' operational debut, in Sylacauga, Alabama, Terex Mining, together with several of its principal vendors, are sponsoring a gala luncheon for IMERYS personnel on April 26. Also attending will be high-ranking representatives from General Electric, Detroit Diesel, W.W. Williams (of Atlanta, GA) and Heavy Machines, Inc. (of Memphis, TN).

Terex Corporation is a diversified global manufacturer based in Westport, Connecticut, with 2000 revenues in excess of $2 billion. Terex is involved in a broad range of construction, infrastructure, recycling and mining-related capital equipment under the brand names of Terex, Unit Rig, Payhauler, O&K, Fermec, Benford, Powerscreen, Finlay, B.L. Pegson, Simplicity, Cedarapids, Grayhound, Jaques, Canica-Jaques, Lorain, PPM, P&H, Franna, Marklift, Koehring, Bendini, RO, Telelect, Square Shooter, American, Italmacchine, Peiner, Comedil, Matbro, Amida, Bartell, Coleman and Morrison. More information on Terex can be found at www.terex.com