<SEC-DOCUMENT>0001673985-20-000036.txt : 20200310
<SEC-HEADER>0001673985-20-000036.hdr.sgml : 20200310
<ACCEPTANCE-DATETIME>20200310165920
ACCESSION NUMBER:		0001673985-20-000036
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20200306
FILED AS OF DATE:		20200310
DATE AS OF CHANGE:		20200310

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Preston Michael
		CENTRAL INDEX KEY:			0001684197

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37774
		FILM NUMBER:		20702537

	MAIL ADDRESS:	
		STREET 1:		300 KIMBALL DRIVE, SUITE 101
		STREET 2:		C/O LEGAL DEPT.
		CITY:			PARSIPPANY
		STATE:			NJ
		ZIP:			07054

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AdvanSix Inc.
		CENTRAL INDEX KEY:			0001673985
		STANDARD INDUSTRIAL CLASSIFICATION:	PLASTICS, MATERIALS, SYNTH RESINS & NONVULCAN ELASTOMERS [2821]
		IRS NUMBER:				812525089
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		300 KIMBALL DRIVE
		STREET 2:		SUITE 101
		CITY:			PARSIPPANY
		STATE:			NJ
		ZIP:			07054
		BUSINESS PHONE:		(973) 526-1800

	MAIL ADDRESS:	
		STREET 1:		300 KIMBALL DRIVE
		STREET 2:		SUITE 101
		CITY:			PARSIPPANY
		STATE:			NJ
		ZIP:			07054
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_158387394353659.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-03-06</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001673985</issuerCik>
        <issuerName>AdvanSix Inc.</issuerName>
        <issuerTradingSymbol>ASIX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001684197</rptOwnerCik>
            <rptOwnerName>Preston Michael</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>300 KIMBALL DRIVE, SUITE 101</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PARSIPPANY</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07054</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP &amp; Chief Financial Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.01</value>
            </securityTitle>
            <transactionDate>
                <value>2020-03-06</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>7645</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>113699</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.01</value>
            </securityTitle>
            <transactionDate>
                <value>2020-03-06</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>7718</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>12.63</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>105981</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Shares of common stock acquired upon vesting of performance stock units (&quot;PSUs&quot;) granted on March 8, 2017.</footnote>
        <footnote id="F2">Shares withheld to satisfy tax withholding obligations related to (i) vesting of the PSUs and (ii) RSUs that vested on March 6, 2020.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Achilles B. Kintiroglou for Michael Preston</signatureName>
        <signatureDate>2020-03-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>prestonpoaex241.htm
<DESCRIPTION>PRESTON POA EX 24.1
<TEXT>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head>
<!-- Document created using Wdesk -->
<!-- Copyright 2020 Workiva -->
<title>Document</title></head><body><div id="i5d9a090354154a1ebcab203149438d09_1"></div><div style="height:72pt;width:100%;"><div><font><br></font></div></div><div style="text-align:right;"><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%;">Exhibit 24.1</font></div><div><font><br></font></div><div><font><br></font></div><div style="text-align:center;"><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%;">POWER OF ATTORNEY </font></div><div style="text-align:center;"><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%;">For Executing Forms 3, 4 and 5</font></div><div><font><br></font></div><div><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%;"> </font></div><div><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%;">KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and appoints Achilles B. Kintiroglou, signing singly, the undersigned&#8217;s true and lawful attorney-in-fact to&#58;</font></div><div><font><br></font></div><div style="text-indent:-18pt;padding-left:36pt;"><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:115%;">1.</font><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:115%;padding-left:9.75pt;">Prepare, execute in the undersigned&#8217;s name and on the undersigned&#8217;s behalf and submit to the U.S. Securities and Exchange Commission (&#34;SEC&#34;) a Form ID, including amendments to such form, and any other documents necessary or appropriate to obtain codes and passwords enabling the undersigned to make electronic filings with the SEC of reports required by Section 16(a) of the Securities Exchange Act of 1934, as amended, and the rules and regulations under such act (the &#8220;Exchange Act&#8221;).</font></div><div><font><br></font></div><div style="text-indent:-18pt;padding-left:36pt;"><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:115%;">2.</font><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:115%;padding-left:9.75pt;">Execute for and on behalf of the undersigned, in the undersigned&#8217;s capacity as an officer and&#47;or director of AdvanSix Inc. (the &#8220;Company&#8221;), Forms 3, 4 and 5 in accordance with Section 16(a) of the Exchange Act, and any other forms or reports the undersigned may be required to file in connection with the undersigned&#8217;s ownership, acquisition or disposition of securities of the Company.</font></div><div><font><br></font></div><div style="text-indent:-18pt;padding-left:36pt;"><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:115%;">3.</font><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:115%;padding-left:9.75pt;">Do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete the execution of any such Form 3, 4 or 5 or other form or report and timely file such form or report with the SEC and any stock exchange or similar authority.</font></div><div><font><br></font></div><div style="text-indent:-18pt;padding-left:36pt;"><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:115%;">4.</font><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:115%;padding-left:9.75pt;">Take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of or legally required by the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact&#8217;s discretion.</font></div><div><font><br></font></div><div><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%;">The undersigned grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary or proper to be done in the exercise of any of the rights and powers granted by this power of attorney, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, ratifying and confirming all that such attorney-in-fact or such attorney-in-fact&#8217;s substitute or substitutes shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers granted by this power of attorney. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, is not assuming, nor is the Company assuming, any of the undersigned&#8217;s responsibilities to comply with Section 16 of the Exchange Act.</font></div><div><font><br></font></div><div><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%;">This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4 and 5 for the undersigned&#8217;s holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.</font></div><div><font><br></font></div><div style="position:relative;width:100%;height:72pt;"><div style="position:absolute;bottom:0;width:100%;"><div><font><br></font></div></div></div><hr style="page-break-after:always"><div style="height:72pt;width:100%;"><div><font><br></font></div></div><div><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%;">IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of March 3, 2020.</font></div><div><font><br></font></div><div style="padding-left:72pt;"><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%;">By&#58;   </font><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%;text-decoration: underline;">&#47;s&#47; Michael Preston</font></div><div style="text-indent:36pt;padding-left:72pt;"><font style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%;">Michael Preston</font></div><div style="padding-left:72pt;"><font><br></font></div><div><font><br></font></div><div style="position:relative;width:100%;height:72pt;"><div style="position:absolute;bottom:0;width:100%;"><div><font><br></font></div></div></div></body></html>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
