Corning Inc. recently announced that its board of directors has approved an additional capital expenditure of approximately $100 million for expanded capabilities at its new clean-diesel products manufacturing facility in Erwin, N.Y. This investment is in addition to a $70 million expansion announced in February 2005. This incremental investment in Corning's diesel manufacturing facility will provide more firing and finishing capability to meet anticipated market demand for its recently introduced Corning DuraTrap® AT filter for diesel passenger car use, as well as demand for Corning substrates and filters for medium and heavy-duty diesel engine applications. These manufacturing enhancements are expected to be fully operational in late 2006. New U.S. clean-air standards for on-road heavy-duty diesel vehicles are set to take effect in 2007. Corning is working closely with major diesel engine and vehicle manufacturers to incorporate the company's diesel filters and substrates into emissions aftertreatment systems to be used on medium and heavy-duty vehicles that meet these low-emissions standards.

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