Document

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 o
Check the appropriate box:
o	Preliminary Proxy Statement
o	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
o	Definitive Proxy Statement
x	Definitive Additional Materials
o	Soliciting Material Pursuant to §240.14a-12

AdvanSix Inc.

(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.
o	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 transaction applies:
		2) Aggregate number of securities to which transaction applies:
		3) Per unit price or other underlying value of 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 transaction:
		5) Total fee paid:
o		Fee previously paid with preliminary materials.



o	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.
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		2) Form, Schedule or Registration Statement No.
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		4) Date Filed:

*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the

Stockholder Meeting to Be Held on June 14, 2018.



ADVANSIX INC.	Meeting Information
	Meeting Type: Annual Meeting
	For holders as of: April 20, 2018
	Date: June 14, 2018 Time: 9:00 AM
	Location:	Hilton Short Hills
		41 John F. Kennedy Parkway
		Short Hills, New Jersey 07078


	You are receiving this communication because you hold shares in the company named above.
ADVANSIX INC. 300 KIMBALL DRIVE, SUITE 101 PARSIPPANY, NJ 07054	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, scan the QR Barcode on the reverse side, 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.

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Before You Vote

How to Access the Proxy Materials



Proxy Materials Available to VIEW or RECEIVE:
2018 NOTICE AND PROXY STATEMENT 2017 ANNUAL REPORT
How to View Online:
Have the information that is printed in the box marked by the arrow è (located on the following page) and visit: www.proxyvote.com, or scan the QR Barcode below.
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 è (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 31, 2018 to facilitate timely delivery.



How To Vote Please Choose One of the Following Voting Methods		SCAN TO VIEW MATERIALS & VOTE




	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: Go to www.proxyvote.com or from a smart phone, scan the QR Barcode above. Have the information that is printed in the box marked by the arrow è (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.

E46131-P02582



Voting Items

The Board of Directors recommends you vote “FOR” each of the nominees:

1.	Election of Directors
	Nominees:
	1a.	Paul E. Huck

	1b.	Daniel F. Sansone

	1c.	Sharon S. Spurlin

The Board of Directors recommends you vote “FOR” the following proposal:

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

The Board of Directors recommends you vote “FOR” the following proposal:

3.	An advisory vote to approve executive compensation.

NOTE: Such other business as may properly come before the meeting or any adjournment thereof.

E46132-P02582

E46133-P02582