UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No.      )

Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐

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☐	Preliminary Proxy Statement
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☐	Definitive Proxy Statement
☒	Definitive Additional Materials
☐	Soliciting Material Pursuant to §240.14a-12

Tenneco Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the

Stockholder Meeting to Be Held on May 16, 2018.

TENNECO INC.
	TENNECO INC. 500 N. FIELD DRIVE LAKE FOREST, IL 60045 ATTN: BRANDON B. SMITH

Meeting Information

Meeting Type:        Annual Meeting

For holders as of:   March 19, 2018

Date: May 16, 2018      Time: 10:00 AM CDT

Location:     Tenneco Headquarters

     500 North Field Drive

     Lake Forest, Illinois 60045

You are receiving this communication because you hold shares in the company named above.

This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).

We encourage you to access and review all of the important information contained in the proxy materials before voting.

See the reverse side of this notice to obtain proxy materials and voting instructions.

— Before You Vote —

How to Access the Proxy Materials

	Proxy Materials Available to VIEW or RECEIVE:
	NOTICE AND PROXY STATEMENT         FORM 10-K            401K LETTER
	How to View Online:
	Have the information that is printed in the box marked by the arrow (located on the following page) and visit: www.proxyvote.com.
	How to Request and Receive a PAPER or E-MAIL Copy:
	If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request:
	1) BY INTERNET:	www.proxyvote.com
	2) BY TELEPHONE:	1-800-579-1639
	3) BY E-MAIL*:	sendmaterial@proxyvote.com
	*   If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow (located on the following page) in the subject line.
	Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before May 2, 2018 to facilitate timely delivery.
	— How To Vote — Please Choose One of the Following Voting Methods
	Vote In Person: Many stockholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares.
	Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow (located on the following page) available and follow the instructions.
	Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.

Voting Items  

The Board of Directors recommends you vote FOR the following:

1. Election of Directors

Nominees:

1a. Thomas C. Freyman

1b. Brian J. Kesseler

1c. Dennis J. Letham

1d. James S. Metcalf

1e. Roger B. Porter

1f. David B. Price, Jr.

1g. Gregg M. Sherrill

1h. Paul T. Stecko

1i. Jane L. Warner

1j. Roger J. Wood

The Board of Directors recommends you vote FOR proposals 2 and 3.

2. Ratify the appointment of PricewaterhouseCoopers LLP as independent public accountants for 2018.

3. Approve executive compensation in an advisory vote.

NOTE: In the discretion of the Proxies named in the proxy card, the Proxies are authorized to vote upon such other matters as may properly come before the meeting (or any adjournment or postponement thereof).