Navistar International Corporation Names Corning A Diamond Supplier

Business Wire, May 20, 2008

CORNING, N.Y. -- Corning Incorporated (NYSE:GLW) announced today that Navistar International Corporation named the company a 2007 Diamond Supplier. The award is granted to suppliers who meet or exceed Navistar's performance expectations for quality, delivery and cost. Corning was one of only 38 suppliers in Navistar's 2,500-member corporate supply base to have achieved this designation for 2007.

Each year, Navistar recognizes suppliers who strategically align with the company's business goals and demonstrate a commitment to continuous improvement. Diamond suppliers collaborate technically and commercially with Navistar and play an integral role in growing Navistar's business. In addition, Diamond suppliers deliver products of distinction to mutual end customers.

"We are proud to receive the Diamond Supplier award from Navistar," said Curt Weinstein, vice president and general manager of Corning Heavy-Duty Diesel Technologies. "We value our collaborative relationship and will continue to work closely with Navistar and other vehicle and engine manufacturers to provide design and development guidance, systems expertise and innovative products that help them meet emissions requirements."

Corning is a leading supplier of advanced cellular ceramic substrates and diesel particulate filters for all of the world's major manufacturers of gasoline and diesel engines and vehicles. The company invented an economical, high-performance, cellular ceramic substrate in the early 1970s that is now the standard for catalytic converters worldwide. In 1978, Corning developed the cellular ceramic particulate filter to remove soot from diesel emissions. Corning continues to leverage its expertise in materials, processes and manufacturing to develop advanced ceramic substrates and diesel particulate filters that help meet demanding mobile emissions requirements.

About Corning Incorporated

Corning Incorporated (www.corning.com) is the world leader in specialty glass and ceramics. Drawing on more than 150 years of materials science and process engineering knowledge, Corning creates and makes keystone components that enable high-technology systems for consumer electronics, mobile emissions control, telecommunications and life sciences. Our products include glass substrates for LCD televisions, computer monitors and laptops; ceramic substrates and filters for mobile emission control systems; optical fiber, cable, hardware & equipment for telecommunications networks; optical biosensors for drug discovery; and other advanced optics and specialty glass solutions for a number of industries including semiconductor, aerospace, defense, astronomy and metrology.

About Navistar

Navistar International Corporation (Other OTC: NAVZ) is a holding company whose wholly owned subsidiaries produce International[R] brand commercial and military trucks, MaxxForce[TM] brand diesel engines, IC brand school and commercial buses, and Workhorse brand chassis for motor homes and step vans. It also is a private-label designer and manufacturer of diesel engines for the pickup truck, van and SUV markets. The company also provides truck and diesel engine parts and service. Another wholly owned subsidiary offers financing services. Additional information is available at www.Navistar.com.