NEWMARKET CORP — Proxy Solicitation & Information Statement 2009

Mar 13, 2009

DEFA14A 1 ddefa14a.htm ADDITIONAL PROXY MATERIALS Additional Proxy Materials

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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 x Filed by a Party other than the Registrant ¨

Check the appropriate box:

¨ Preliminary Proxy Statement

¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

¨ Definitive Proxy Statement

x Definitive Additional Materials

¨ Soliciting Material Pursuant to §240.14a-12

NEWMARKET CORPORATION

(Name of Registrant as Specified In Its Charter)

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

Payment of Filing Fee (Check the appropriate box):

x No fee required.

¨ Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

(1) Title of each class of securities to which the transaction applies:

(2) Aggregate number of securities to which the transaction applies:

(3) Per unit price or other underlying value of the transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):

(4) Proposed maximum aggregate value of the transaction:

(5) Total fee paid:

¨ Fee paid previously with preliminary materials.

¨ Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

(1) Amount Previously Paid:

(2) Form, Schedule or Registration Statement No.:

(3) Filing Party:

(4) Date Filed:

IMPORTANT ANNUAL SHAREHOLDERS’ MEETING INFORMATION — YOUR VOTE COUNTS!

Important Notice Regarding the Availability of Proxy Materials for the

NewMarket Corporation Annual Meeting of Shareholders to be Held on April 23, 2009

Under Securities and Exchange Commission rules, you are receiving this notice that the proxy materials for the annual shareholders’ meeting are available on the Internet. Follow the instructions below to view the materials and vote online or request a copy. The items to be voted on and location of the annual meeting are on the reverse side. Your vote is important!

This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. The proxy statement and annual report to shareholders are available at:

Easy Online Access — A Convenient Way to View Proxy Materials and Vote When you go online to view materials, you can also vote your shares. Step 1: Go to www.envisionreports.com/NEU to view the materials. Step 2: Click on Cast Your Vote or Request Materials. Step 3: Follow the instructions on the screen to log in. Step 4: Make your selection as instructed on each screen to select delivery preferences and vote.

Obtaining a Copy of the Proxy Materials – If you want to receive a paper or e-mail copy of these documents, you must request one. There is no charge to you for requesting a copy. Please make your request for a copy as instructed on the reverse side on or before April 13, 2009 to facilitate timely delivery.

Shareholder Meeting Notice and Admission Ticket

NewMarket Corporation’s Annual Meeting of Shareholders will be held on April 23, 2009 at the Virginia Historical Society 428 North Boulevard Richmond, VA at 11:00 a.m. Eastern Daylight Time. Directions to the annual meeting can be found in the proxy statement.

Proposals to be voted on at the meeting are listed below along with the Board of Directors’ recommendations.

The Board of Directors recommends that you vote FOR the following proposals:

1. Election of Directors.

2. Reapproval of the material terms of performance goals under the NewMarket Corporation 2004 Incentive Compensation and Stock Plan.

3. Ratification of the appointment of PricewaterhouseCoopers LLP as the independent registered public accounting firm for the Corporation for the fiscal year ending December 31, 2009.

In their discretion, the Proxyholders are authorized to vote upon such other business and matters as may properly come before the Annual Meeting.

PLEASE NOTE – This is not a proxy. To vote your shares you must vote online or request a set of proxy materials to receive a proxy card. If you wish to attend and vote at the meeting, please bring this notice and identification with you.

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EXPLANATORY NOTE: The following Notice of Internet Availability of Proxy Materials is being sent to certain shareholders of record who are receiving full set delivery of proxy materials.

Important Notice Regarding the Availability of Proxy Materials for the

NewMarket Corporation Annual Meeting of Shareholders

to Be Held on April 23, 2009

The proxy statement and annual report are available at

www.envisionreports.com/NEU