Tenneco Inc. (ticker: TEN, exchange: New York Stock Exchange) News Release

October 23, 2012

Lake Forest, IL October 22, 2012 – Tenneco (NYSE: TEN) has announced that Dr. Ben Patel, vice president, emission control, global research and development and systems integration will be a featured speaker at the Diesel Emissions Conference and DEF Forum 2012, October 30-November 1, 2012 in Cincinnati.
Patel will highlight several of Tenneco’s key aftertreatment innovations that help engine and vehicle manufacturers meet increasingly stringent emissions regulations globally. Included in discussion will be the role of liquid urea SCR; alternative aftertreatment strategies that address unique market and regional needs and the best way to optimize emission control solutions through systems integration.
Tenneco also will display some of its key technologies at the conference, including its XNOx SCR Aftertreatment System for NOx abatement, the company’s T.R.U.E.-Clean® thermal management devices and a product featuring XNOx™ SCR to address EUVI emissions regulations for commercial trucks.
Interview opportunities are available on site or in advance of the conference. Please contact the press contacts listed below to schedule an interview.
Tenneco is a $7.2 billion global manufacturing company with headquarters in Lake Forest, Illinois and approximately 24,000 employees worldwide. Tenneco is one of the world’s largest designers, manufacturers and marketers of emission control and ride control products and systems for the automotive and commercial vehicle original equipment markets and the aftermarket. Tenneco markets its products principally under the Monroe®, Walker® and Clevite® Elastomer brand names. 
This press release contains forward-looking statements. Words such as “anticipate,” “expects,” "will", "continue" and similar expressions identify forward-looking statements. These forward-looking statements are based on the current expectations of the company (including its subsidiaries). Because these forward-looking statements involve risks and uncertainties, the company's plans, actions and actual results could differ materially. Among the factors that could cause these plans, actions and results to differ materially from current expectations are: (i) changes in automotive or commercial vehicle manufacturers' production rates and their actual and forecasted requirements for the company's products, including the company's resultant inability to realize the sales represented by its awarded book of business; (ii) changes in demand and prices, including decreases in demand for automobiles or commercial vehicles which include the company's products, and the potential negative impact on the company's revenues and margins from such products; (iii) the general political, economic and competitive conditions in markets where the company and its subsidiaries operate; (iv) workforce factors such as strikes or labor interruptions; (v) material substitutions and increases in the costs of raw materials; and (vi) the company's ability to develop and profitably commercialize new products and technologies, and the acceptance of such new products and technologies by the company's customers.
The company undertakes no obligation to update any forward-looking statement to reflect events or circumstances after the date of this press release. Additional information regarding these risk factors and uncertainties is detailed from time to time in the company's SEC filings, including but not limited to its report on Form 10-K for the year ended December 31, 2011. 
Michelle Caldwell
+1 313 418 4692
Bill Dawson
+1 847 482-5807
+1 224 280-4308