ASIX / AdvanSix Inc. - Pemfailan SEC, Laporan Tahunan, Penyata Proksi

AdvanSix Inc.
US ˙ NYSE ˙ US00773T1016

Statistik Asas
LEI 5493009TPRODMCAZLF67
CIK 1673985
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to AdvanSix Inc.
SEC Filings (Chronological Order)
Halaman ini menyediakan senarai kronologi lengkap bagi Pemfailan SEC, tidak termasuk pemfailan pemilikan yang kami sediakan di tempat lain.
September 2, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 2, 2025 ADVANSIX INC. (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 2, 2025 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525

September 2, 2025 EX-99.1

ADVANSIX APPOINTS DANA O’BRIEN AND DARYL ROBERTS TO BOARD OF DIRECTORS

Exhibit 99.1 News Release ADVANSIX APPOINTS DANA O’BRIEN AND DARYL ROBERTS TO BOARD OF DIRECTORS Parsippany, N.J., September 2, 2025– AdvanSix (NYSE: ASIX), a diversified chemistry company, announced today the appointment of Dana O’Brien and Daryl Roberts as new independent members of its Board of Directors. Ms. O’Brien recently retired as Senior Vice President and Chief Legal Officer of Olin Corp

August 1, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 or ☐ TRANSITION REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix Inc

August 1, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 1, 2025 ADVANSIX INC. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 1, 2025 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

August 1, 2025 EX-99.1

ADVANSIX ANNOUNCES SECOND QUARTER 2025 FINANCIAL RESULTS 2Q25 Sales of $410 million, down 10% versus prior year 2Q25 Earnings Per Share of $1.15; Adjusted Earnings Per Share of $1.24 2Q25 Cash Flow from Operations of $21 million $8 million of 45Q car

Exhibit 99.1 News Release ADVANSIX ANNOUNCES SECOND QUARTER 2025 FINANCIAL RESULTS 2Q25 Sales of $410 million, down 10% versus prior year 2Q25 Earnings Per Share of $1.15; Adjusted Earnings Per Share of $1.24 2Q25 Cash Flow from Operations of $21 million $8 million of 45Q carbon capture tax credits claimed in 2Q25 Parsippany, N.J., August 1, 2025 - AdvanSix (NYSE: ASIX), a diversified chemistry co

August 1, 2025 EX-3.1

Amended and Restated Certificate of Incorporation of AdvanSix Inc.

Exhibit 3.1 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF ADVANSIX INC. (Effective as of June 18, 2025) ARTICLE I The name of the corporation (hereinafter called the “Corporation”) is AdvanSix Inc. ARTICLE II The address of the Corporation’s registered office in the State of Delaware is 2711 Centerville Road, Suite 400, New Castle County, Wilmington, Delaware 19808. The name of the Corporat

July 9, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 9, 2025 ADVANSIX INC. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 9, 2025 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089 (

June 20, 2025 EX-10.1

2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated (effective June 18, 2025)

Exhibit 10.1 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated (effective June 18, 2025) ARTICLE I ESTABLISHMENT AND PURPOSE 1.1 Purpose. The purpose of this 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates (the “Plan”) is to enable the Company to achieve superior financial performance, as reflected in the performance of its Common Stock and other

June 20, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 18, 2025 ADVANSIX INC. (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 18, 2025 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

June 20, 2025 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Table Form S-8 (Form Type) AdvanSix Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Stock, $0.01 par value per s

June 20, 2025 EX-4.2

Certificate of Amendment of Amended and Restated Certificate of Incorporation of AdvanSix Inc.

Exhibit 4.2 Certificate of Amendment Of Amended and Restated Certificate of Incorporation Of AdvanSix Inc. Pursuant to Section 242 of the General Corporation Law of the State of Delaware AdvanSix Inc. (the “Corporation”), a corporation duly organized and validly existing under and by virtue of the General Corporation Law of the State of Delaware, does hereby certify as follows: FIRST: The Amended

June 20, 2025 S-8

As filed with the Securities and Exchange Commission on June 20, 2025

As filed with the Securities and Exchange Commission on June 20, 2025 Registration No.

May 16, 2025 DEFA14A

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 Registran

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 Defin

May 2, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 or ☐ TRANSITION REPOR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix In

May 2, 2025 EX-99.1

ADVANSIX ANNOUNCES FIRST QUARTER 2025 FINANCIAL RESULTS 1Q25 Sales of $378 million, up 12% versus prior year 1Q25 Earnings Per Share of $0.86; Adjusted Earnings Per Share of $0.93 1Q25 Cash Flow from Operations of $11 million, up $48 million versus p

Exhibit 99.1 News Release ADVANSIX ANNOUNCES FIRST QUARTER 2025 FINANCIAL RESULTS 1Q25 Sales of $378 million, up 12% versus prior year 1Q25 Earnings Per Share of $0.86; Adjusted Earnings Per Share of $0.93 1Q25 Cash Flow from Operations of $11 million, up $48 million versus prior year 1Q25 results include previously announced $26 million final insurance settlement proceeds related to 2019 PES supp

May 2, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 2, 2025 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089 (I

April 29, 2025 DEF 14A

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 Registran

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)) x Defin

April 29, 2025 DEFA14A

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 Registran

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 Defin

April 16, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 16, 2025 ADVANSIX INC. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 16, 2025 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

April 16, 2025 PRE 14A

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 Registran

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: x Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

March 17, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 17, 2025 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

February 21, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37774 AdvanSix Inc. (Exact name of

February 21, 2025 EX-99.1

ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2024 FINANCIAL RESULTS 4Q24 Sales of $329 million, down 14% versus prior year 4Q24 Earnings Per Share of $0.01; Adjusted Earnings Per Share of $0.09 4Q24 Cash Flow from Operations of $64 million, up $4

Exhibit 99.1 News Release ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2024 FINANCIAL RESULTS 4Q24 Sales of $329 million, down 14% versus prior year 4Q24 Earnings Per Share of $0.01; Adjusted Earnings Per Share of $0.09 4Q24 Cash Flow from Operations of $64 million, up $4 million versus prior year Progressing 45Q carbon capture tax credits with initial $9.7 million claimed in 4Q24 Final insuran

February 21, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 21, 2025 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525

February 21, 2025 EX-19.1

AdvanSix Inc. Policy Regarding Insider Trading and Other Transactions in AdvanSix Securities.

Exhibit 19.1 AdvanSix Inc. Policy Regarding Insider Trading and Other Transactions in AdvanSix Securities This Policy describes the rules on trading or participating in any transactions involving AdvanSix securities or securities of other publicly traded companies while in possession of material and confidential information. This Policy applies to all directors, officers and employees (referred to

November 1, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 or ☐ TRANSITION R

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSi

November 1, 2024 EX-99.1

ADVANSIX ANNOUNCES THIRD QUARTER 2024 FINANCIAL RESULTS Sales of $398 million, up 23% versus prior year Earnings Per Share of $0.82; Adjusted Earnings Per Share of $0.88 Cash Flow from Operations of $57 million, up $36 million versus prior year Award

Exhibit 99.1 News Release ADVANSIX ANNOUNCES THIRD QUARTER 2024 FINANCIAL RESULTS Sales of $398 million, up 23% versus prior year Earnings Per Share of $0.82; Adjusted Earnings Per Share of $0.88 Cash Flow from Operations of $57 million, up $36 million versus prior year Awarded $12 million grant from USDA to support expansion of granular ammonium sulfate Appointed Sidd Manjeshwar as SVP and CFO, e

November 1, 2024 EX-10.1

Offer of Employment Letter between AdvanSix Inc. and Siddharth Manjeshwar, dated September 12, 2024 †

Exhibit 10.1 September 12, 2024 Sidd Manjeshwar Dear Sidd, Congratulations! I am pleased to confirm the details of our offer to you for the position of Senior Vice President and Chief Financial Officer with AdvanSix Inc. (the “Company”), located in Parsippany, New Jersey. In connection with your new role, you will be entitled to the following compensation and benefits package: OFFER DETAILS Base S

November 1, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 1, 2024 ADVANSIX INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 1, 2024 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-25250

September 12, 2024 EX-99.1

ADVANSIX APPOINTS SIDD MANJESHWAR AS SENIOR VICE PRESIDENT AND CHIEF FINANCIAL OFFICER

Exhibit 99.1 News Release ADVANSIX APPOINTS SIDD MANJESHWAR AS SENIOR VICE PRESIDENT AND CHIEF FINANCIAL OFFICER Parsippany, N.J., September 12, 2024 – AdvanSix (NYSE: ASIX), a diversified chemistry company, announced today the appointment of Sidd Manjeshwar as Senior Vice President and Chief Financial Officer, effective October 1st. In this role, Mr. Manjeshwar will have global responsibility for

September 12, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 12, 2024 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-252

August 19, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 19, 2024 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-252508

August 19, 2024 EX-99.1

ADVANSIX APPOINTS DONALD P. NEWMAN TO BOARD OF DIRECTORS

Exhibit 99.1 News Release ADVANSIX APPOINTS DONALD P. NEWMAN TO BOARD OF DIRECTORS Parsippany, N.J., August 19, 2024 – AdvanSix (NYSE: ASIX), a diversified chemistry company, announced today the appointment of Donald P. Newman as a new independent member of its Board of Directors. Mr. Newman is currently Executive Vice President, Finance and Chief Financial Officer of ATI Inc., a global producer o

August 2, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 or ☐ TRANSITION REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix Inc

August 2, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 2, 2024 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

August 2, 2024 EX-99.1

ADVANSIX ANNOUNCES SECOND QUARTER 2024 FINANCIAL RESULTS Sales of $453 million, up 6% versus prior year Earnings Per Share of $1.43; Adjusted Earnings Per Share of $1.55 Cash Flow from Operations of $50 million, up 43% versus prior year Performance a

Exhibit 99.1 News Release ADVANSIX ANNOUNCES SECOND QUARTER 2024 FINANCIAL RESULTS Sales of $453 million, up 6% versus prior year Earnings Per Share of $1.43; Adjusted Earnings Per Share of $1.55 Cash Flow from Operations of $50 million, up 43% versus prior year Performance across diversified portfolio supports favorable earnings outlook Parsippany, N.J., August 2, 2024 - AdvanSix (NYSE: ASIX), a

August 2, 2024 EX-10.1

Amendment No. 3 to Amended and Restated Caprolactam and Polymer Supply Agreement, dated as of May 1, 2024, by and between AdvanSix Resins and Chemicals LLC and Shaw Industries Group, Inc.*

Exhibit 10.1 CERTAIN IDENTIFIED INFORMATION HAS BEEN EXCLUDED FROM THE EXHIBIT BECAUSE IT IS BOTH NOT MATERIAL AND IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL. REDACTED INFORMATION IS INDICATED BY [***]. AMENDMENT NO. 3 TO AMENDED & RESTATED CAPROLACTAM & POLYMER SUPPLY AGREEMENT This AMENDMENT NO. 3 TO AMENDED AND RESTATED CAPROLACTAM AND POLYMER SUPPLY AGREEMENT (“Am. No. 3

June 13, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 13, 2024 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

May 20, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2024 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089 (

May 3, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 3, 2024 ADVANSIX INC. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 3, 2024 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089 (I

May 3, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 or ☐ TRANSITION REPOR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix In

May 3, 2024 EX-99.1

ADVANSIX ANNOUNCES FIRST QUARTER 2024 FINANCIAL RESULTS 1Q24 Sales of $337 million, down 16% versus prior year 1Q24 Earnings Per Share of ($0.65); Adjusted Earnings Per Share of ($0.56) 1Q24 results include approximately $27 million unfavorable pre-t

Exhibit 99.1 News Release ADVANSIX ANNOUNCES FIRST QUARTER 2024 FINANCIAL RESULTS 1Q24 Sales of $337 million, down 16% versus prior year 1Q24 Earnings Per Share of ($0.65); Adjusted Earnings Per Share of ($0.56) 1Q24 results include approximately $27 million unfavorable pre-tax income impact from previously announced process-based operational disruption Continued commitment to corporate social res

April 26, 2024 DEFA14A

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 Registran

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 Defin

April 26, 2024 DEF 14A

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 Registran

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)) x Defin

February 16, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37774 AdvanSix Inc. (Exact name of

February 16, 2024 EX-97.1

AdvanSix Inc. Incentive Compensation Recovery Policy, effective as of September 20, 2023

Exhibit 97.1 AdvanSix Inc. Incentive Compensation Recovery Policy I. Purpose The purpose of this Incentive Compensation Recovery Policy, as may be amended from time to time (“Policy”), is to describe the circumstances under which the Covered Executives (as defined below) will be required to repay or return Incentive Compensation (as defined below) to AdvanSix Inc., (the “Company”). Each Covered Ex

February 16, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 16, 2024 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525

February 16, 2024 EX-99.1

ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2023 FINANCIAL RESULTS 4Q23 Sales of $382 million, down 5% versus prior year 4Q23 Earnings Per Share of ($0.19); Adjusted Earnings Per Share of ($0.10) 4Q23 Cash Flow from Operations of $60 million Retu

Exhibit 99.1 News Release ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2023 FINANCIAL RESULTS 4Q23 Sales of $382 million, down 5% versus prior year 4Q23 Earnings Per Share of ($0.19); Adjusted Earnings Per Share of ($0.10) 4Q23 Cash Flow from Operations of $60 million Returned $63 million of cash to shareholders through repurchases and dividends in 2023 Parsippany, N.J., February 16, 2024 - Adv

February 13, 2024 SC 13G/A

ASIX / AdvanSix Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6)* Name of issuer: AdvanSix Inc Title of Class of Securities: Common Stock CUSIP Number: 00773T101 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 1

February 9, 2024 SC 13G/A

ASIX / AdvanSix Inc. / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* AdvanSix Inc (Name of Issuer) Common Stock (Title of Class of Securities) 00773T101 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to design

February 7, 2024 SC 13G

ASIX / AdvanSix Inc. / VICTORY CAPITAL MANAGEMENT INC Passive Investment

SC 13G 1 advansix13g123123.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Advansix Inc (Name of Issuer) Common Stock (Title of Class of Securities) 00773T101 (CUSIP Number) December 31, 2023 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pur

January 19, 2024 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 19, 2024 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-25250

January 19, 2024 EX-99.1

ADVANSIX PROVIDES UPDATE ON PLANT PRODUCTION RATES

Exhibit 99.1 News Release ADVANSIX PROVIDES UPDATE ON PLANT PRODUCTION RATES Parsippany, N.J., January 19, 2024 – AdvanSix (NYSE: ASIX) announced that it has experienced a process-based operational disruption at its Frankford, Pennsylvania manufacturing site. As a result, phenol and acetone production at the Frankford facility, as well as production at its Hopewell and Chesterfield, Virginia facil

November 3, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 3, 2023 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-25250

November 3, 2023 EX-99.1

ADVANSIX ANNOUNCES THIRD QUARTER 2023 FINANCIAL RESULTS Sales of $323 million, down 33% versus prior year Earnings Per Share of ($0.29); Adjusted Earnings Per Share of ($0.36) Returned $14 million of cash to shareholders through repurchases and divid

Exhibit 99.1 News Release ADVANSIX ANNOUNCES THIRD QUARTER 2023 FINANCIAL RESULTS Sales of $323 million, down 33% versus prior year Earnings Per Share of ($0.29); Adjusted Earnings Per Share of ($0.36) Returned $14 million of cash to shareholders through repurchases and dividends in 3Q23 Executing multi-year SUSTAIN program while continuing to progress on a USDA grant Parsippany, N.J., November 3,

November 3, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 or ☐ TRANSITION R

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSi

August 4, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 or ☐ TRANSITION REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix Inc

August 4, 2023 EX-10.1

First Amendment to Credit Agreement, dated as of June 27, 2023, among AdvanSix Inc., the lenders party thereto and Truist Bank, as administrative agent (with annexed Amended and Restated Credit Agreement) (incorporated by reference to Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q filed on August 4, 2023).

Exhibit 10.1 FIRST AMENDMENT THIS FIRST AMENDMENT, dated as of June 27, 2023 (this “Amendment”), to that certain CREDIT AGREEMENT, dated as of October 27, 2021, by and among ADVANSIX INC., a Delaware corporation, as borrower (the “Borrower”), the Lenders from time to time party thereto, TRUIST BANK, as administrative agent (together with any successor Administrative Agent, in such capacity the “Ad

August 4, 2023 EX-99.1

ADVANSIX ANNOUNCES SECOND QUARTER 2023 FINANCIAL RESULTS Sales of $428 million, down 27% versus prior year Earnings Per Share of $1.16; Adjusted Earnings Per Share of $1.25 Returned $19 million of cash to shareholders through repurchases and dividend

Exhibit 99.1 News Release ADVANSIX ANNOUNCES SECOND QUARTER 2023 FINANCIAL RESULTS Sales of $428 million, down 27% versus prior year Earnings Per Share of $1.16; Adjusted Earnings Per Share of $1.25 Returned $19 million of cash to shareholders through repurchases and dividends in 2Q23 Announced 10% increase in quarterly dividend to $0.16 per share Parsippany, N.J., August 4, 2023 - AdvanSix (NYSE:

August 4, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 4, 2023 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

June 20, 2023 EX-3.1

Amended and Restated By-laws of AdvanSix Inc. (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed on June 20, 2023).

Exhibit 3.1 ADVANSIX INC. AMENDED AND RESTATED BY-LAWS (Effective as of June 16, 2023) ARTICLE I Offices SECTION 1. Registered Office. The registered office of AdvanSix Inc. (hereinafter, the “Corporation”) in the State of Delaware shall be at 2711 Centerville Road, Suite 400, Wilmington, New Castle County, Delaware 19808, and the registered agent shall be Corporation Service Company, or such othe

June 20, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 15, 2023 ADVANSIX INC. (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 15, 2023 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

May 8, 2023 EX-99.1

AdvanSix Hopewell South Employees Ratify New Comprehensive and Competitive Five-Year Agreement

Exhibit 99.1 AdvanSix Hopewell South Employees Ratify New Comprehensive and Competitive Five-Year Agreement HOPEWELL, VA (May 8, 2023) —The AdvanSix Hopewell South bargaining unit, consisting of the International Chemical Workers Union Council/the United Food and Commercial Workers, Local 591-C, the International Brotherhood of Electrical Workers, Local 666, the International Association of Machin

May 8, 2023 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2023 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089 (I

May 5, 2023 EX-99.1

ADVANSIX ANNOUNCES FIRST QUARTER 2023 FINANCIAL RESULTS Sales of $401 million, down 16% versus prior year Earnings Per Share of $1.22; Adjusted Earnings Per Share of $1.30 Returned $18 million of cash to shareholders through repurchases and dividends

Exhibit 99.1 News Release ADVANSIX ANNOUNCES FIRST QUARTER 2023 FINANCIAL RESULTS Sales of $401 million, down 16% versus prior year Earnings Per Share of $1.22; Adjusted Earnings Per Share of $1.30 Returned $18 million of cash to shareholders through repurchases and dividends Planned multi-year investment to expand granular ammonium sulfate production Parsippany, N.J., May 5, 2023 - AdvanSix (NYSE

May 5, 2023 EX-10.3

Form of Stock Option Award Agreement for Executive Officers under the AdvanSix Inc. 2016 Stock Incentive Plan, as Amended and Restated (incorporated by reference to Exhibit 10.3 to the Company’s Quarterly Report on Form 10-Q filed on May 5, 2023). †

Exhibit 10.3 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated Form of Stock Option Award Agreement STOCK OPTION AWARD AGREEMENT (this “Agreement”), as of [GRANT DATE] (the “Grant Date”), between AdvanSix Inc. (the “Company”) and the employee of the Company (the “Employee”) designated as receiving a grant of Stock Options by the Company. 1.Grant of Option. The

May 5, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 5, 2023 ADVANSIX INC. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 5, 2023 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089 (I

May 5, 2023 EX-10.1

Form of Restricted Stock Unit Agreement for Executive Officers under the AdvanSix Inc. 2016 Stock Incentive Plan, as Amended and Restated (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q filed on May 5, 2023). †

Exhibit 10.1 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated Form of Restricted Stock Unit Agreement RESTRICTED STOCK UNIT AGREEMENT (this “Agreement”) as of [AWARD DATE] (the “Award Date”) between AdvanSix Inc. (the “Company”) and the employee of the Company (the “Employee”) designated as receiving a grant of Restricted Stock Units by the Company. 1.Grant of

May 5, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 or ☐ TRANSITION REPOR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix In

May 5, 2023 EX-10.2

Form of Performance Stock Unit Agreement for Executive Officers under the AdvanSix Inc. 2016 Stock Incentive Plan, as Amended and Restated (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q filed on May 5, 2023). †

Exhibit 10.2 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated Form of Performance Stock Unit Agreement PERFORMANCE STOCK UNIT AGREEMENT (this “Agreement”) as of [AWARD DATE] (the “Award Date”) between AdvanSix Inc. (the “Company”) and the employee of the Company (the “Employee”) designated as receiving a grant of Performance Stock Units by the Company. 1.Grant

April 28, 2023 DEFA14A

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 Registran

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 Defin

April 28, 2023 DEF 14A

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 Registran

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)) x Defin

April 14, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 14, 2023 ADVANSIX INC. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 14, 2023 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

April 7, 2023 EX-99.1

AdvanSix Remains Committed to Reaching Comprehensive and Competitive New Five-Year Agreement with Hopewell South Bargaining Unit

Exhibit 99.1 AdvanSix Remains Committed to Reaching Comprehensive and Competitive New Five-Year Agreement with Hopewell South Bargaining Unit HOPEWELL, VA (APRIL 7, 2023) —The AdvanSix Hopewell South bargaining unit, consisting of the International Chemical Workers Union Council/the United Food and Commercial Workers, Local 591-C, the International Brotherhood of Electrical Workers, Local 666, the

April 7, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 7, 2023 ADVANSIX INC. (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 7, 2023 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

February 17, 2023 EX-99.1

ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2022 FINANCIAL RESULTS Record annual sales, earnings and cash flow in 2022 4Q22 Sales of $404 million, down 5% versus prior year 4Q22 Earnings Per Share of $1.18; Adjusted Earnings Per Share of $1.27 4Q

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2022 FINANCIAL RESULTS Record annual sales, earnings and cash flow in 2022 4Q22 Sales of $404 million, down 5% versus prior year 4Q22 Earnings Per Share of $1.18; Adjusted Earnings Per Share of $1.27 4Q22 Cash Flow from Operations of $70 million, up 109% versus prior year Returned $49 million of cash to sharehol

February 17, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37774 AdvanSix Inc. (Exact name of

February 17, 2023 EX-10.36

Amendment No. 1 and Amendment No. 2 to Amended and Restated Caprolactam and Polymer Supply Agreement, dated as of October 1, 2021 and January 1, 2023, respectively, by and between AdvanSix Resins Chemicals LLC and Shaw Industries Group, Inc

Exhibit 10.36 CERTAIN IDENTIFIED INFORMATION HAS BEEN EXCLUDED FROM THE EXHIBIT BECAUSE IT IS BOTH NOT MATERIAL AND IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL. REDACTED INFORMATION IS INDICATED BY [***]. AMENDMENT TO AMENDED AND RESTATED CAPROLACTAM AND POLYMER SUPPLY AGREEMENT THIS AMENDMENT TO AMENDED AND RESTATED CAPROLACTAM AND POLYMER SUPPLY AGREEMENT (this “Amendment”)

February 17, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 17, 2023 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525

February 10, 2023 SC 13G

ASIX / AdvanSix Inc / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

SC 13G 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* AdvanSix Inc (Name of Issuer) Common Stock (Title of Class of Securities) 00773T101 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate

February 9, 2023 SC 13G/A

ASIX / AdvanSix Inc / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5)* Name of issuer: AdvanSix Inc. Title of Class of Securities: Common Stock CUSIP Number: 00773T101 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule

November 4, 2022 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 4, 2022 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-25250

November 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 or ☐ TRANSITION R

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSi

November 4, 2022 EX-99.1

ADVANSIX ANNOUNCES THIRD QUARTER 2022 FINANCIAL RESULTS Sales of $479 million, up 7% versus prior year Earnings Per Share of $0.35; Adjusted Earnings Per Share of $0.43 Cash Flow from Operations of $59 million, down 23% versus prior year Returned $17

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES THIRD QUARTER 2022 FINANCIAL RESULTS Sales of $479 million, up 7% versus prior year Earnings Per Share of $0.35; Adjusted Earnings Per Share of $0.43 Cash Flow from Operations of $59 million, down 23% versus prior year Returned $17 million of cash to shareholders through dividends and repurchases Parsippany, N.J., November 4, 2022 - AdvanSi

October 7, 2022 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 7, 2022 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-252508

October 7, 2022 EX-99.1

ADVANSIX PROVIDES UPDATE ON THIRD QUARTER TURNAROUND AND EXPECTED FINANCIAL RESULTS

Exhibit 99.1 AdvanSix.com News Release ADVANSIX PROVIDES UPDATE ON THIRD QUARTER TURNAROUND AND EXPECTED FINANCIAL RESULTS Parsippany, N.J., October 7, 2022 ? AdvanSix (NYSE: ASIX) announced a preliminary update on its third quarter planned turnaround activities and its expected third quarter 2022 financial results. The Company expects third quarter 2022 Adjusted EBITDA to be in the range of $31 t

August 5, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 or ☐ TRANSITION REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix Inc

August 5, 2022 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2022 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

August 5, 2022 EX-99.1

ADVANSIX ANNOUNCES SECOND QUARTER 2022 FINANCIAL RESULTS Sales of $584 million, up 33% versus prior year Earnings Per Share of $2.23; Adjusted Earnings Per Share of $2.30, up 40% versus prior year Cash Flow from Operations of $96 million, up 85% vers

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES SECOND QUARTER 2022 FINANCIAL RESULTS Sales of $584 million, up 33% versus prior year Earnings Per Share of $2.23; Adjusted Earnings Per Share of $2.30, up 40% versus prior year Cash Flow from Operations of $96 million, up 85% versus prior year Announced 16% increase in quarterly dividend to $0.145 per share Parsippany, N.J., August 5, 2022

August 5, 2022 EX-10.2

dvanSix Inc. and Willem L. Blindenbach, dated June 15, 2022 (incorporated by reference to E

Exhibit 10.2 June 15, 2022 Willem L. Blindenbach AdvanSix Inc. 300 Kimball Drive, Suite 101 Parsippany, NJ 07054 Re: Employment Separation Agreement and Release Mr. Blindenbach, This Employment Separation Agreement and Release ("Agreement") confirms our mutual understanding regarding your rights and benefits incident to your termination of employment with AdvanSix Inc., its predecessor companies,

June 16, 2022 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Table Form S-8 (Form Type) AdvanSix Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Stock, $0.01 par value per s

June 16, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 15, 2022 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

June 16, 2022 S-8

As filed with the Securities and Exchange Commission on June 16, 2022

As filed with the Securities and Exchange Commission on June 16, 2022 Registration No.

June 16, 2022 EX-10.1

2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated (effective June 15, 2022) (incorporated by reference to the Company's Current Report on Form 8-K filed on June 16, 2022)

Exhibit 10.1 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated (effective June 15, 2022) ARTICLE I ESTABLISHMENT AND PURPOSE 1.1 Purpose. The purpose of this 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates (the ?Plan?) is to enable the Company to achieve superior financial performance, as reflected in the performance of its Common Stock and other

May 6, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 or ☐ TRANSITION REPOR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix In

May 6, 2022 EX-99.1

ADVANSIX ANNOUNCES FIRST QUARTER 2022 FINANCIAL RESULTS Record quarterly sales, earnings and margins in 1Q22 Sales of $479 million, up 27% versus prior year Earnings Per Share of $2.15; Adjusted Earnings Per Share of $2.26, up 115% versus prior year

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES FIRST QUARTER 2022 FINANCIAL RESULTS Record quarterly sales, earnings and margins in 1Q22 Sales of $479 million, up 27% versus prior year Earnings Per Share of $2.15; Adjusted Earnings Per Share of $2.26, up 115% versus prior year Cash Flow from Operations of $49 million, down $8 million versus prior year Parsippany, N.J., May 6, 2022 - Adv

May 6, 2022 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 6, 2022 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089 (I

April 28, 2022 DEF 14A

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 Registran

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)) x Defin

April 28, 2022 DEFA14A

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 Registran

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 Defin

February 18, 2022 EX-99.1

ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2021 FINANCIAL RESULTS Record annual sales, earnings and cash flow in 2021 4Q21 Sales of $424 million; EPS of $0.80; Cash Flow from Operations of $33 million Agreement to acquire U.S. Amines, a leading

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2021 FINANCIAL RESULTS Record annual sales, earnings and cash flow in 2021 4Q21 Sales of $424 million; EPS of $0.80; Cash Flow from Operations of $33 million Agreement to acquire U.S. Amines, a leading North American producer of intermediates used in agrochemicals, pharmaceuticals and other applications Board au

February 18, 2022 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 18, 2022 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525

February 18, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37774 AdvanSix Inc. (Exact name of

February 15, 2022 SC 13G/A

ASIX / AdvanSix Inc / TOWLE & CO - TOWLE & CO Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* AdvanSix Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 00773T101 (CUSIP Number) December 31, 2021 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule

February 9, 2022 SC 13G/A

ASIX / AdvanSix Inc / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4)* Name of issuer: AdvanSix Inc. Title of Class of Securities: Common Stock CUSIP Number: 00773T101 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ??Rule

December 14, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 14, 2021 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525

December 14, 2021 EX-99.1

ADVANSIX APPOINTS FARHA ASLAM TO BOARD OF DIRECTORS

EX-99.1 2 pressrelease1.htm EX-99.1 Exhibit 99.1 AdvanSix.com News Release ADVANSIX APPOINTS FARHA ASLAM TO BOARD OF DIRECTORS Parsippany, N.J., December 14, 2021 – AdvanSix (NYSE: ASIX) announced today the appointment of Farha Aslam as a new independent member of its Board of Directors. Ms. Aslam is currently Managing Partner of Crescent House Capital, an investment and strategic advisory firm sh

October 29, 2021 EX-99.1

ADVANSIX ANNOUNCES THIRD QUARTER 2021 FINANCIAL RESULTS Robust sales, earnings and cash flow - strong execution in dynamic environment Sales of $446 million, up 58% versus prior year driven by price and volume improvement Earnings Per Share of $1.51,

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES THIRD QUARTER 2021 FINANCIAL RESULTS Robust sales, earnings and cash flow - strong execution in dynamic environment Sales of $446 million, up 58% versus prior year driven by price and volume improvement Earnings Per Share of $1.51, up $1.53 versus prior year Cash Flow from Operations of $76 million, up $41 million versus prior year Parsippa

October 29, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 or ☐ TRANSITION R

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSi

October 29, 2021 8-K

Entry into a Material Definitive Agreement, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 27, 2021 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-25250

October 29, 2021 EX-10.1

Credit Agreement, dated as of October 27, 2021, among AdvanSix Inc., the lenders party thereto and Truist Bank, as administrative agent (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on October 29, 2021).

Exhibit 10.1 Execution Version DEAL CUSIP NUMBER: 00773XAD4 REVOLVING CREDIT FACILITY CUSIP NUMBER: 00773XAE2 CREDIT AGREEMENT Dated as of October 27, 2021 among ADVANSIX INC., as the Borrower, TRUIST BANK, as Administrative Agent, and the Lenders Party Hereto TRUIST SECURITIES, INC. BofA SECURITIES, INC., U.S. BANK NATIONAL ASSOCIATION JPMORGAN CHASE BANK, N.A., PNC CAPITAL MARKETS, LLC and CITIZ

September 28, 2021 EX-99.1

ADVANSIX HOSTS INVESTOR DAY TO SHARE ROADMAP FOR LONG-TERM VALUE CREATION Core strategies aligned to sustainable and robust Total Shareholder Return Initiating $0.125 per share quarterly dividend 3Q 2021 outlook reflects expected strong earnings and

Exhibit 99.1 AdvanSix.com News Release ADVANSIX HOSTS INVESTOR DAY TO SHARE ROADMAP FOR LONG-TERM VALUE CREATION Core strategies aligned to sustainable and robust Total Shareholder Return Initiating $0.125 per share quarterly dividend 3Q 2021 outlook reflects expected strong earnings and cash flow results Parsippany, N.J., September 28, 2021 - AdvanSix (NYSE: ASIX) announced it will host an Invest

September 28, 2021 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 28, 2021 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-252

September 10, 2021 EX-99.1

ADVANSIX APPOINTS GENA C. LOVETT TO BOARD OF DIRECTORS

Exhibit 99.1 AdvanSix.com News Release ADVANSIX APPOINTS GENA C. LOVETT TO BOARD OF DIRECTORS Parsippany, N.J., September 10, 2021 ? AdvanSix (NYSE: ASIX) announced today the appointment of Gena C. Lovett as a new independent member of its Board of Directors. Ms. Lovett most recently served as Vice President of Manufacturing, Safety and Quality for The Boeing Company?s Defense, Space & Security di

September 10, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 10, 2021 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-252

July 30, 2021 EX-99.1

ADVANSIX ANNOUNCES SECOND QUARTER 2021 FINANCIAL RESULTS Record sales and earnings - strong execution amid tight supply and demand environment Sales of $438 million, up 88% versus prior year driven by volume and price improvement Earnings Per Share o

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES SECOND QUARTER 2021 FINANCIAL RESULTS Record sales and earnings - strong execution amid tight supply and demand environment Sales of $438 million, up 88% versus prior year driven by volume and price improvement Earnings Per Share of $1.53, up 273% versus prior year Cash Flow from Operations of $52 million, up $43 million versus prior year P

July 30, 2021 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 30, 2021 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

July 30, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 or ☐ TRANSITION REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix Inc

June 10, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 10, 2021 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

April 30, 2021 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2021 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

April 30, 2021 EX-99.1

ADVANSIX ANNOUNCES FIRST QUARTER 2021 FINANCIAL RESULTS Strong volume growth, improved market pricing and robust cash flow generation Sales of $376 million, up 24% versus prior year Earnings Per Share of $0.98, up 216% versus prior year Cash Flow fro

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES FIRST QUARTER 2021 FINANCIAL RESULTS Strong volume growth, improved market pricing and robust cash flow generation Sales of $376 million, up 24% versus prior year Earnings Per Share of $0.98, up 216% versus prior year Cash Flow from Operations of $57 million, up $37 million versus prior year Awarded 2021 Platinum Rating for corporate social

April 30, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix In

April 26, 2021 DEFA14A

- DEFA14A

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 Defin

April 26, 2021 DEF 14A

- DEF 14A

DEF 14A 1 asixproxy2021.htm DEF 14A 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 pe

February 19, 2021 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 19, 2021 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525

February 19, 2021 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37774 AdvanSix Inc. (Exact name of

February 19, 2021 EX-99.1

ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2020 FINANCIAL RESULTS Strong volume growth, margin improvement and cash flow generation 4Q20 Sales of $340 million, up 4% versus prior year 4Q20 EPS of $0.94, up $1.02 versus the prior year 4Q20 Cash F

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2020 FINANCIAL RESULTS Strong volume growth, margin improvement and cash flow generation 4Q20 Sales of $340 million, up 4% versus prior year 4Q20 EPS of $0.94, up $1.02 versus the prior year 4Q20 Cash Flow from Operations of $48 million, up $28 million versus prior year Parsippany, N.J., February 19, 2021 - Adva

February 16, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5)*

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

February 12, 2021 SC 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 AdvanSix Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 00773T101 (CUSIP Number) December 31, 2020 (Date

SC 13G 1 asix.htm TOWLE & CO UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 AdvanSix Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 00773T101 (CUSIP Number) December 31, 2020 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 3)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 3)* Name of issuer: AdvanSix Inc. Title of Class of Securities: Common Stock CUSIP Number: 00773T101 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule

October 30, 2020 EX-99.1

ADVANSIX ANNOUNCES THIRD QUARTER 2020 FINANCIAL RESULTS Strong volume growth, cash flow generation, cost management and capital discipline Sales of $282 million, down (9%) versus prior year - Volume up 5%, Pass-through pricing (13%) EPS Loss of ($0.0

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES THIRD QUARTER 2020 FINANCIAL RESULTS Strong volume growth, cash flow generation, cost management and capital discipline Sales of $282 million, down (9%) versus prior year - Volume up 5%, Pass-through pricing (13%) EPS Loss of ($0.02) - includes $20 million pre-tax income impact of planned plant turnaround Cash Flow from Operations of $36 mi

October 30, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSi

October 30, 2020 8-K

Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 30, 2020 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-25250

July 31, 2020 EX-10.2

Offer of Employment Letter between AdvanSix Inc. and Kelly Slieter, dated May 25, 2020 (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q filed with the SEC on July 31, 2020) †

Exhibit 10.2 May 21, 2020 Dear Kelly, Congratulations! I am pleased to confirm the details of our offer to you for the position of Senior Vice President and Chief Human Resources Officer with AdvanSix (the “Company”), located in Parsippany, New Jersey. In connection with your new role, you will be entitled to the following compensation and benefits package: OFFER DETAILS Base Salary Your annual ba

July 31, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix Inc

July 31, 2020 EX-99.1

ADVANSIX ANNOUNCES SECOND QUARTER 2020 FINANCIAL RESULTS Sales of $233 million, down 33% versus prior year Earnings Per Share of $0.41, down $0.12 versus prior year Cash Flow from Operations of $9 million, down $16 million versus prior year Strength

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES SECOND QUARTER 2020 FINANCIAL RESULTS Sales of $233 million, down 33% versus prior year Earnings Per Share of $0.41, down $0.12 versus prior year Cash Flow from Operations of $9 million, down $16 million versus prior year Strength of business model, cost position and execution mitigating COVID-19 impacts Parsippany, N.J., July 31, 2020 - Ad

July 31, 2020 8-K

Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 31, 2020 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

July 2, 2020 SC 13G/A

ASIX / AdvanSix Inc. / JP Morgan Chase & Co - FILING ADVANSIX INC. Passive Investment

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 02)* AdvanSix Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 00773T101 (CUSIP Number) June 30, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the

June 23, 2020 EX-10.1

2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on June 23, 2020).

Exhibit 10.1 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated (effective June 23, 2020) ARTICLE I ESTABLISHMENT AND PURPOSE 1.1 Purpose. The purpose of this 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates (the “Plan”) is to enable the Company to achieve superior financial performance, as reflected in the performance of its Common Stock and other

June 23, 2020 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 23, 2020 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

June 23, 2020 S-8

- S-8

As filed with the Securities and Exchange Commission on June 23, 2020 Registration No.

June 23, 2020 EX-4.3

2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated

Exhibit 4.3 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated (effective June 23, 2020) ARTICLE I ESTABLISHMENT AND PURPOSE 1.1 Purpose. The purpose of this 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates (the “Plan”) is to enable the Company to achieve superior financial performance, as reflected in the performance of its Common Stock and other k

May 1, 2020 EX-99.1

ADVANSIX ANNOUNCES FIRST QUARTER 2020 FINANCIAL RESULTS Sales of $303 million, down 4% versus prior year Earnings Per Share of $0.31; Cash Flow from Operations of $20 million Business designated as essential during COVID-19 response Company taking pr

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES FIRST QUARTER 2020 FINANCIAL RESULTS Sales of $303 million, down 4% versus prior year Earnings Per Share of $0.31; Cash Flow from Operations of $20 million Business designated as essential during COVID-19 response Company taking proactive measures to mitigate COVID-19 impacts; Continues to operate to meet customer demand while protecting he

May 1, 2020 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2020 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089 (I

May 1, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix In

May 1, 2020 EX-10.3

Employment Separation Agreement and Release between AdvanSix Inc. and Jonathan Bellamy, dated March 12, 2020 (incorporated by reference to Exhibit 10.3 to the Company’s Quarterly Report on Form 10-Q filed with the SEC on May 1, 2020) †

Exhibit 10.3 March 12, 2020 Jonathan Bellamy AdvanSix Inc. 300 Kimball Drive, Suite 100 Parsippany, NJ 07054 Re: Employment Separation Agreement and Release Mr. Bellamy, This Employment Separation Agreement and Release ("Agreement") confirms our mutual understanding regarding your rights and benefits incident to your termination of employment with AdvanSix Inc., its predecessor companies, affiliat

May 1, 2020 EX-10.4

Offer of Employment Letter between AdvanSix Inc. and John M. Quitmeyer, dated April 1, 2020. †

Exhibit 10.4 April 1, 2020 John (Hans) Quitmeyer Dear Hans, This letter will confirm your temporary role of Special Counsel at AdvanSix Inc. (the “Company”), located in Parsippany, New Jersey, which is effective on April 2, coincident with your retirement as Senior Vice President, General Counsel and Corporate Secretary. The scope of work in the Special Counsel role will be focused on business con

May 1, 2020 EX-10.2

Offer of Employment Letter between AdvanSix Inc. and Achilles B. Kintiroglou, dated February 24, 2020 (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q filed with the SEC on May 1, 2020) †

Exhibit 10.2 February 24, 2020 Achilles B. Kintiroglou Dear Achilles, Congratulations! I am pleased to confirm the details of our proposed offer to you for the position of Senior Vice President, General Counsel & Corporate Secretary of AdvanSix Inc. (the “Company”), located in Parsippany, New Jersey. In connection with your new role, you will be entitled to the following compensation and benefits

April 29, 2020 DEFA14A

- DEFA14A

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 Defin

April 29, 2020 DEF 14A

- DEF 14A

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)) x Defin

March 31, 2020 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 31, 2020 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

March 31, 2020 EX-99.1

ADVANSIX PROVIDES BUSINESS UPDATE IN RESPONSE TO CORONAVIRUS (COVID-19) IMPACT First quarter financial results progressed as planned Shifting majority of second quarter planned turnaround to second half 2020 Company to release first quarter financial

Exhibit 99.1 AdvanSix.com News Release ADVANSIX PROVIDES BUSINESS UPDATE IN RESPONSE TO CORONAVIRUS (COVID-19) IMPACT First quarter financial results progressed as planned Shifting majority of second quarter planned turnaround to second half 2020 Company to release first quarter financial results and hold earnings conference call on May 1 Parsippany, N.J., March 31, 2020 – AdvanSix (NYSE: ASIX) to

March 13, 2020 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 12, 2020 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

February 25, 2020 EX-99.1

ADVANSIX APPOINTS PATRICK S. WILLIAMS TO BOARD OF DIRECTORS AND ANNOUNCES GENERAL COUNSEL SUCCESSION John M. Quitmeyer to Retire as Senior Vice President, General Counsel and Corporate Secretary; Achilles B. Kintiroglou to Succeed

Exhibit 99.1 AdvanSix.com News Release ADVANSIX APPOINTS PATRICK S. WILLIAMS TO BOARD OF DIRECTORS AND ANNOUNCES GENERAL COUNSEL SUCCESSION John M. Quitmeyer to Retire as Senior Vice President, General Counsel and Corporate Secretary; Achilles B. Kintiroglou to Succeed Parsippany, N.J., February 25, 2020 – AdvanSix (NYSE: ASIX) announced today the appointment of Patrick S. Williams to its Board of

February 25, 2020 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 25, 2020 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525

February 21, 2020 EX-10.1

Amendment No. 2 to Credit Agreement, dated as of February 19, 2020, among AdvanSix Inc., the guarantors, the lenders signatory thereto and Bank of America, N.A., as the administrative agent (with annexed Amended and Restated Credit Agreement) (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on February 21, 2020).

Exhibit 10.1 EXECUTION VERSION AMENDMENT NO. 2 TO CREDIT AGREEMENT This AMENDMENT NO. 2 TO CREDIT AGREEMENT (this “Amendment”), dated as of February 19, 2020, is entered into by and among ADVANSIX INC., a Delaware corporation (the “Borrower”), the Guarantors (as identified on the signature pages hereto, and together with the Borrower, the “Loan Parties”), the Lenders (as defined below) signatory h

February 21, 2020 8-K

Entry into a Material Definitive Agreement, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 21, 2020 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525

February 21, 2020 EX-4.1

Description of Securities of the Registrant (incorporated by reference to Exhibit 4.1 to the Company's Annual Report on Form 10-K filed on February 21, 2020).

Exhibit 4.1 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12(B) OF THE SECURITIES EXCHANGE ACT OF 1934 As of February 3, 2020, AdvanSix Inc. (“AdvanSix” or “we”) has one class of securities registered under Section 12(b) of the Securities Exchange Act of 1934, as amended: 200,000,000 authorized shares of common stock, par value $0.01 per share (“Common Stock”), of which

February 21, 2020 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37774 AdvanSix Inc. (Exact name of

February 21, 2020 EX-99.1

ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2019 FINANCIAL RESULTS 4Q19 Sales of $327 million, down 16% versus prior year 4Q19 EPS loss of $0.08 - includes $25 million pre-tax income impact of planned turnaround 4Q19 Cash Flow from Operations of

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2019 FINANCIAL RESULTS 4Q19 Sales of $327 million, down 16% versus prior year 4Q19 EPS loss of $0.08 - includes $25 million pre-tax income impact of planned turnaround 4Q19 Cash Flow from Operations of $20 million, down $26 million versus prior year Continued strategic investments in high-return growth and cost

February 21, 2020 EX-10.15

Offer of Employment Letter between AdvanSix Inc. and Willem L. Blindenbach, dated as of October 2, 2019. †

Exhibit 10.15 October 2, 2019 Willem (Wim) L. Blindenbach Dear Wim, Congratulations! I am pleased to confirm the details of our offer to you for the position of Vice President, Integrated Supply Chain with AdvanSix (the “Company”), located in Chesterfield, Virginia. In connection with your new role, you will be entitled to the following compensation and benefits package: OFFER DETAILS Base Salary

February 14, 2020 SC 13G/A

ASIX / AdvanSix Inc. / Firefly Value Partners, LP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

February 12, 2020 SC 13G/A

ASIX / AdvanSix Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 2)* Name of issuer: AdvanSix Inc Title of Class of Securities: Common Stock CUSIP Number: 00773T101 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 1

January 8, 2020 SC 13G/A

ASIX / AdvanSix Inc. / JP Morgan Chase & Co - FILING ADVANSIX INC. Passive Investment

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 01)* AdvanSix Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 00773T101 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate

November 1, 2019 EX-99.1

ADVANSIX ANNOUNCES THIRD QUARTER 2019 FINANCIAL RESULTS Sales of $311 million, down 16% versus prior year primarily due to raws pass-through pricing Earnings Per Share of $0.28, up 56% versus prior year Cash Flow from Operations of $33 million, down

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES THIRD QUARTER 2019 FINANCIAL RESULTS Sales of $311 million, down 16% versus prior year primarily due to raws pass-through pricing Earnings Per Share of $0.28, up 56% versus prior year Cash Flow from Operations of $33 million, down $17 million versus prior year 
 Parsippany, N.J., November 1, 2019 - AdvanSix (NYSE: ASIX) today announced its

November 1, 2019 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 1, 2019 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-25250

November 1, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSi

August 1, 2019 EX-99.1

ADVANSIX ANNOUNCES SECOND QUARTER 2019 FINANCIAL RESULTS Sales of $345 million, down 14% versus prior year primarily due to raws pass-through pricing Cash Flow from Operations of $25 million, down $8 million versus prior year Earnings Per Share of $0

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES SECOND QUARTER 2019 FINANCIAL RESULTS Sales of $345 million, down 14% versus prior year primarily due to raws pass-through pricing Cash Flow from Operations of $25 million, down $8 million versus prior year Earnings Per Share of $0.53, down $0.38 versus prior year 2Q19 results include previously announced $12.6 million pre-tax repositioning

August 1, 2019 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 1, 2019 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

August 1, 2019 EX-3.1

Amended and Restated Certificate of Incorporation of AdvanSix Inc. (conformed copy) (incorporated by reference to Exhibit 3.1 to the Company's Quarterly Report on Form 10-Q filed on August 1, 2019).

Exhibit 3.1 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF ADVANSIX INC. (Effective as of June 11, 2019) ARTICLE I The name of the corporation (hereinafter called the “Corporation”) is AdvanSix Inc. ARTICLE II The address of the Corporation’s registered office in the State of Delaware is 2711 Centerville Road, Suite 400, New Castle County, Wilmington, Delaware 19808. The name of the Corporat

August 1, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix Inc

August 1, 2019 EX-3.2

Amended and Restated By-laws of AdvanSix Inc. (incorporated by reference to Exhibit 3.2 to the Company's Quarterly Report on Form 10-Q filed on August 1, 2019).

Exhibit 3.2 ADVANSIX INC. AMENDED AND RESTATED BY-LAWS (Effective as of June 11, 2019) ARTICLE I Offices SECTION 1. Registered Office. The registered office of AdvanSix Inc. (hereinafter, the “Corporation”) in the State of Delaware shall be at 2711 Centerville Road, Suite 400, Wilmington, New Castle County, Delaware 19808, and the registered agent shall be Corporation Service Company, or such othe

June 24, 2019 EX-99.1

ADVANSIX ISSUES STATEMENT REGARDING PHILADELPHIA REFINERY FIRE

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ISSUES STATEMENT REGARDING PHILADELPHIA REFINERY FIRE Parsippany, N.J., June 24, 2019 – AdvanSix (NYSE: ASIX) said today that the Company is assessing the potential business impact of the fire that occurred Friday morning at the Philadelphia Energy Solutions’ (PES) refinery in Philadelphia. PES is one of multiple suppliers to AdvanSix of cumene, a fe

June 24, 2019 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 24, 2019 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

June 12, 2019 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 11, 2019 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

May 13, 2019 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 13, 2019 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089 (

May 13, 2019 EX-99.1

ADVANSIX ANNOUNCES CONCLUSION OF HOPEWELL INVESTIGATION

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES CONCLUSION OF HOPEWELL INVESTIGATION Parsippany, N.J., May 13, 2019 – AdvanSix (NYSE: ASIX) announced today that the United States government has notified the Company that the criminal investigation regarding air emissions at the Hopewell, Virginia facility has concluded with no further action required. “Health, safety and environmental per

May 3, 2019 EX-99.1

ADVANSIX ANNOUNCES FIRST QUARTER 2019 FINANCIAL RESULTS Sales of $315 million, down 12% versus prior year driven by raw material pass-through pricing Cash Flow from Operations of $42 million, down 5% versus prior year Earnings Per Share of $0.68, up

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES FIRST QUARTER 2019 FINANCIAL RESULTS Sales of $315 million, down 12% versus prior year driven by raw material pass-through pricing Cash Flow from Operations of $42 million, down 5% versus prior year Earnings Per Share of $0.68, up 84% versus prior year Strategic alliance with Oben Group to sell BOPA film offerings in North America; Closure

May 3, 2019 8-K

Material Impairments, Costs Associated with Exit or Disposal Activities, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 2, 2019 ADVANSIX INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089 (I

May 3, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix In

April 26, 2019 DEFA14A

ASIX / AdvanSix Inc. DEFA14A DEFA14A

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 Defin

April 26, 2019 DEF 14A

ASIX / AdvanSix Inc. DEF 14A DEF 14A

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)) x Defin

April 11, 2019 PRE 14A

ASIX / AdvanSix Inc. PRE 14A

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: x Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

March 11, 2019 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 11, 2019 ADVANSIX INC. (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

March 11, 2019 EX-99.1

ADVANSIX ISSUES STATEMENT ON PHENOL CUSTOMER FORCE MAJEURE

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ISSUES STATEMENT ON PHENOL CUSTOMER FORCE MAJEURE Parsippany, N.J., March 11, 2019 – AdvanSix (NYSE: ASIX) today informed its phenol customers that it is declaring force majeure as a result of shortages and delivery delays of its key raw material, cumene. The Company’s cumene deliveries have been reduced driven by weather-related logistics disruption

February 22, 2019 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 22, 2019 ADVANSIX INC. (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525

February 22, 2019 EX-99.1

ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2018 FINANCIAL RESULTS 4Q18 Sales of $387 million, up 4% versus prior year 4Q18 Cash Flow from Operations of $46 million, up 26% versus prior year 4Q18 Earnings Per Share of $0.68 Board of Directors aut

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2018 FINANCIAL RESULTS 4Q18 Sales of $387 million, up 4% versus prior year 4Q18 Cash Flow from Operations of $46 million, up 26% versus prior year 4Q18 Earnings Per Share of $0.68 Board of Directors authorizes additional $75 million share repurchase program Parsippany, N.J., February 22, 2019 - AdvanSix (NYSE: A

February 22, 2019 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K ý ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37774 AdvanSix Inc. (Exact name of

February 22, 2019 EX-10.31

Amended and Restated Caprolactam and Polymer Supply Agreement dated as of Jan 1, 2019, by and between AdvanSix Resins Chemicals LLC and Shaw Industries Group, Inc. (incorporated by reference to Exhibit 10.31 to the Company’s Annual Report on Form 10-K filed with the SEC on February 22, 2019) *

Confidential Treatment Requested by AdvanSix Inc. Exhibit 10.31 AMENDED AND RESTATED CAPROLACTAM AND POLYMER SUPPLY AGREEMENT This Amended and Restated Caprolactam and Polymer Supply Agreement (this “Agreement”) is made as of January 1, 2019, by and between AdvanSix Resins & Chemicals LLC, a Delaware limited liability company (“Seller”), and Shaw Industries Group, Inc., a Georgia corporation (“Buy

February 14, 2019 SC 13G/A

ASIX / AdvanSix Inc. / Firefly Value Partners, LP - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

February 11, 2019 SC 13G/A

ASIX / AdvanSix Inc. / VANGUARD GROUP INC Passive Investment

advansixinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1 )* Name of issuer: AdvanSix Inc Title of Class of Securities: Common Stock CUSIP Number: 00773T101 Date of Event Which Requires Filing of this Statement: December 31, 2018 Check the appropriate box to designat

January 9, 2019 SC 13G

ASIX / AdvanSix Inc. / JP Morgan Chase & Co - NONE Passive Investment

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. n/a )* AdvanSix Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 00773T101 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designat

December 7, 2018 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 6, 2018 ADVANSIX INC. (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-25250

November 2, 2018 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 2, 2018 ADVANSIX INC. (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-25250

November 2, 2018 EX-99.1

ADVANSIX ANNOUNCES THIRD QUARTER 2018 FINANCIAL RESULTS Sales of $369 million, up 1% versus prior year Cash Flow from Operations of $51 million, up 34% versus prior year Earnings Per Share of $0.18, down 74% versus prior year

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES THIRD QUARTER 2018 FINANCIAL RESULTS Sales of $369 million, up 1% versus prior year Cash Flow from Operations of $51 million, up 34% versus prior year Earnings Per Share of $0.18, down 74% versus prior year Parsippany, N.J., November 2, 2018 - AdvanSix (NYSE: ASIX) today announced its financial results for the third quarter ending September

November 2, 2018 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2018 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSi

August 3, 2018 EX-99.1

ADVANSIX ANNOUNCES SECOND QUARTER 2018 FINANCIAL RESULTS Sales of $400 million, up 11% versus prior year Cash Flow from Operations of $33 million, up 12% versus prior year Earnings Per Share of $0.91, up 10% versus prior year

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES SECOND QUARTER 2018 FINANCIAL RESULTS Sales of $400 million, up 11% versus prior year Cash Flow from Operations of $33 million, up 12% versus prior year Earnings Per Share of $0.91, up 10% versus prior year Parsippany, N.J., August 3, 2018 - AdvanSix (NYSE: ASIX) today announced its financial results for the second quarter ending June 30, 2

August 3, 2018 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2018 ADVANSIX INC. (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

August 3, 2018 10-Q

Quarterly Report - 10-Q Q2 2018

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2018 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix Inc

August 3, 2018 EX-10.1

Form of Noncompete Agreement for Senior Executives (incorporated by reference to Exhibit 10.1 of the Company’s Quarterly Report on Form 10-Q filed on August 3, 2018).

Exhibit 10.1 ADVANSIX INC. NONCOMPETE AGREEMENT FOR SENIOR EXECUTIVES In consideration of benefits more fully described in my employment offer letter with AdvanSix Inc. (“AdvanSix”) dated , my employment, continued employment, compensation and the equipment, materials, facilities and the Trade Secrets, Proprietary and Confidential Information supplied to me, I agree to the following: 1. Noncompeti

July 23, 2018 CORRESP

ASIX / AdvanSix Inc. CORRESP

AdvanSix Inc. 300 Kimball Drive, Suite 101 Parsippany, New Jersey 07054 July 23, 2018 VIA EDGAR AND OVERNIGHT COURIER U.S. Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing and Construction 100 F Street, N.E. Washington, D.C. 20549 Attn: Ameen Hamady Re: AdvanSix Inc. Form 10-K for the Fiscal Year Ended December 31, 2017 Filed on February 27, 2018 Form 10-Q

June 15, 2018 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 14, 2018 ADVANSIX INC. (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

May 4, 2018 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 4, 2018 ADVANSIX INC. (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089 (I

May 4, 2018 EX-99.1

ADVANSIX ANNOUNCES FIRST QUARTER 2018 FINANCIAL RESULTS Sales of $359 million, down 5% versus prior year Cash Flow from Operations of $44 million, up $13 million versus prior year Earnings Per Share of $0.37, down $0.51 versus prior year Board of Dir

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES FIRST QUARTER 2018 FINANCIAL RESULTS Sales of $359 million, down 5% versus prior year Cash Flow from Operations of $44 million, up $13 million versus prior year Earnings Per Share of $0.37, down $0.51 versus prior year Board of Directors authorizes $75 million share repurchase program Parsippany, N.J., May 4, 2018 - AdvanSix (NYSE: ASIX) to

May 4, 2018 10-Q

ASIX / AdvanSix Inc. 10-Q Q1 2018 (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2018 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix In

April 27, 2018 DEFA14A

ASIX / AdvanSix Inc. DEFA14A

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 Defin

April 27, 2018 DEF 14A

ASIX / AdvanSix Inc. DEF 14A - 2018 PROXY

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)) x Defin

February 27, 2018 10-K

ASIX / AdvanSix Inc. 10-K FYE 2017 (Annual Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K ý ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2017 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37774 AdvanSix Inc. (Exact name of

February 27, 2018 EX-10.29

Eighth Amendment to the Amended and Restated Caprolactam and Polymer Supply Agreement dated as of February 22, 2018, by and between AdvanSix Resins & Chemicals LLC and Shaw Industries Group, Inc. (incorporated by reference to Exhibit 10.29 to the Company’s Annual Report on Form 10-K filed with the SEC on February 27, 2018) *

Confidential Treatment Requested by AdvanSix Inc. Exhibit 10.29 EIGHTH AMENDMENT TO AMENDED AND RESTATED CAPROLACTAM AND POLYMER SUPPLY AGREEMENT THIS EIGHTH AMENDMENT TO AMENDED AND RESTATED CAPROLACTAM AND POLYMER SUPPLY AGREEMENT (this “Amendment”) is entered into as of February 22, 2018, by and between AdvanSix Resins & Chemicals LLC (“Seller”), and Shaw Industries Group, Inc., a Georgia corpo

February 27, 2018 EX-10.28

Seventh Amendment to the Amended and Restated Caprolactam and Polymer Supply Agreement dated as of February 22, 2018, by and between AdvanSix Resins & Chemicals LLC and Shaw Industries Group, Inc. (incorporated by reference to Exhibit 10.28 to the Company’s Annual Report on Form 10-K filed with the SEC on February 27, 2018) *

Confidential Treatment Requested by AdvanSix Inc. Exhibit 10.28 SEVENTH AMENDMENT TO AMENDED AND RESTATED CAPROLACTAM AND POLYMER SUPPLY AGREEMENT THIS SEVENTH AMENDMENT TO AMENDED AND RESTATED CAPROLACTAM AND POLYMER SUPPLY AGREEMENT (this “Amendment”) is entered into as of February 22, 2018, by and between AdvanSix Resins & Chemicals LLC (“Seller”), and Shaw Industries Group, Inc., a Georgia cor

February 23, 2018 EX-99.1

ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2017 FINANCIAL RESULTS 4Q17 Sales of $370 million, up 43% versus prior year 4Q17 Cash Flow from Operations of $36 million, down $11 million versus prior year 4Q17 Earnings Per Share of $2.31, includes $

Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2017 FINANCIAL RESULTS 4Q17 Sales of $370 million, up 43% versus prior year 4Q17 Cash Flow from Operations of $36 million, down $11 million versus prior year 4Q17 Earnings Per Share of $2.31, includes $1.71 one-time net tax benefit Parsippany, N.J., February 23, 2018 - AdvanSix (NYSE: ASIX) today announced its f

February 23, 2018 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 21, 2018 ADVANSIX INC. (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 21, 2018 ADVANSIX INC. (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525

February 23, 2018 EX-10.1

Amendment No. 1 to Credit Agreement, dated as of February 21, 2018, among AdvanSix Inc., the guarantors, the lenders signatory thereto and Bank of America, N.A., as the administrative agent (with annexed Amended and Restated Credit Agreement) (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on February 23, 2018).

Exhibit 10.1 EXECUTION VERSION AMENDMENT NO. 1 TO CREDIT AGREEMENT This AMENDMENT NO. 1 TO CREDIT AGREEMENT (this “Amendment”), dated as of February 21, 2018, is entered into by and among ADVANSIX INC., a Delaware corporation (the “Borrower”), the Guarantors (as identified on the signature pages hereto, and together with the Borrower, the “Loan Parties”), the Lenders (as defined below) signatory h

February 14, 2018 SC 13G/A

ASIX / AdvanSix Inc. / Firefly Value Partners, LP - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

February 8, 2018 SC 13G

ASIX / AdvanSix Inc. / VANGUARD GROUP INC Passive Investment

advansixinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 0 )* Name of issuer: AdvanSix Inc Title of Class of Securities: Common Stock CUSIP Number: 00773T101 Date of Event Which Requires Filing of this Statement: December 31, 2017 Check the appropriate box to designat

January 17, 2018 8-K

Regulation FD Disclosure

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 17, 2018 ADVANSIX INC. (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number)

January 17, 2018 EX-99.1

ADVANSIX REPORTS REDUCED PRODUCTION RATES AT ITS MANUFACTURING FACILITIES

Exhibit Exhibit 99.1 AdvanSix.com News Release ADVANSIX REPORTS REDUCED PRODUCTION RATES AT ITS MANUFACTURING FACILITIES Parsippany, N.J., January 17, 2018 - AdvanSix (NYSE: ASIX) announced today that it has experienced a temporary production issue at its Hopewell, Virginia facility related to the recent severe winter weather. As a result of this unplanned interruption, caprolactam and resin produ

November 15, 2017 EX-10.1

Executive Severance Pay Plan of AdvanSix Inc. (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on November 15, 2017). †

Exhibit Exhibit 10.1 EXECUTIVE SEVERANCE PAY PLAN OF ADVANSIX INC. Effective as of November 10, 2017 1. Purpose . The purpose of this Executive Severance Pay Plan of AdvanSix Inc. is to provide severance benefits to executive officers of AdvanSix who are designated as Participants in accordance with Section 4 of the Plan and whose employment relationship is terminated as a result of a Covered Term

November 15, 2017 8-K

Current Report

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 10, 2017 ADVANSIX INC. (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number

November 7, 2017 8-K

Results of Operations and Financial Condition

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 7, 2017 ADVANSIX INC. (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number)

November 7, 2017 EX-99.1

ADVANSIX ANNOUNCES THIRD QUARTER 2017 FINANCIAL RESULTS Sales of $367 million, up 13% versus prior year Cash Flow from Operations of $38 million, up $13 million versus prior year Earnings Per Share of $0.68, up 26% versus prior year

Exhibit Exhibit 99.1 AdvanSix.com News Release ADVANSIX ANNOUNCES THIRD QUARTER 2017 FINANCIAL RESULTS Sales of $367 million, up 13% versus prior year Cash Flow from Operations of $38 million, up $13 million versus prior year Earnings Per Share of $0.68, up 26% versus prior year Parsippany, N.J., November 7, 2017 - AdvanSix (NYSE: ASIX) today announced its financial results for the third quarter e

November 7, 2017 SC 13G/A

ASIX / AdvanSix Inc. / JP Morgan Chase & Co - NONE Passive Investment

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 01)* AdvanSix Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 00773T101 (CUSIP Number) October 31, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate t

November 7, 2017 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2017 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSi

September 26, 2017 S-8

AdvanSix S-8 DCP

Document As filed with the Securities and Exchange Commission on September 26, 2017 Registration No.

September 26, 2017 8-K

Current Report

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 21, 2017 ADVANSIX INC. (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Numbe

September 26, 2017 EX-10.1

AdvanSix Inc. Deferred Compensation Plan (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on September 26, 2017). †

Exhibit Exhibit 10.1 ADVANSIX INC. DEFERRED COMPENSATION PLAN AdvanSix Inc., a Delaware corporation (the ? Company ?), hereby establishes the AdvanSix Inc. Deferred Compensation Plan (the ? Plan ?), effective January 1, 2018 (the ? Effective Date ?), for the purpose of attracting and retaining high quality executives and Directors, and promoting in them increased efficiency and an interest in the

August 10, 2017 8-K

Results of Operations and Financial Condition

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 10, 2017 ADVANSIX INC. (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number)

August 10, 2017 EX-99.1

ADVANSIX ANNOUNCES SECOND QUARTER 2017 FINANCIAL RESULTS Sales of $361 million, up 17% versus prior year Cash Flow from Operations of $30 million, down $8 million versus prior year Earnings Per Share of $0.83, up 69% versus prior year

Exhibit Exhibit 99.1 Advan6.com News Release ADVANSIX ANNOUNCES SECOND QUARTER 2017 FINANCIAL RESULTS Sales of $361 million, up 17% versus prior year Cash Flow from Operations of $30 million, down $8 million versus prior year Earnings Per Share of $0.83, up 69% versus prior year Parsippany, N.J., August 10, 2017 - AdvanSix (NYSE: ASIX) today announced its financial results for the second quarter e

August 10, 2017 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2017 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix Inc

June 2, 2017 8-K

Current Report

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 1, 2017 ADVANSIX INC. (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-

May 11, 2017 10-Q

AdvanSix (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2017 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-37774 AdvanSix In

May 11, 2017 EX-10.3

Form of Restricted Stock Unit Agreement for Executive Officers under the AdvanSix Inc. 2016 Stock Incentive Plan (incorporated by reference to Exhibit 10.3 to the Company’s Quarterly Report on Form 10-Q filed on May 11, 2017). †

Exhibit 10.3 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates Form of Restricted Stock Unit Agreement RESTRICTED STOCK UNIT AGREEMENT (this ?Agreement?) as of the [DAY] day of [MONTH YEAR] (the ?Award Date?) between AdvanSix Inc. (the ?Company?) and [EMPLOYEE NAME]. 1. Grant of Award. The Company has granted you [NUMBER] Restricted Stock Units, subject to the provisions of this Agreem

May 11, 2017 EX-10.4

Form of Performance Stock Unit Agreement under the AdvanSix Inc. 2016 Stock Incentive Plan (incorporated by reference to Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q filed on May 11, 2017). †

Exhibit 10.4 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates Form of Performance Stock Unit Agreement PERFORMANCE STOCK UNIT AGREEMENT (this ?Agreement?) as of the [DAY] day of [MONTH YEAR] (the ?Award Date?) between AdvanSix Inc. (the ?Company?) and [EMPLOYEE NAME]. 1. Grant of Award. The Company has granted you [NUMBER] Performance Stock Units (?Performance Stock Units?), represent

May 11, 2017 EX-10.5

Form of Stock Option Award Agreement under the AdvanSix Inc. 2016 Stock Incentive Plan (incorporated by reference to Exhibit 10.5 to the Company’s Quarterly Report on Form 10-Q filed on May 11, 2017). †

Exhibit 10.5 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates Form of Stock Option Award Agreement STOCK OPTION AWARD AGREEMENT (this ?Agreement?), as of [DATE] (the ?Grant Date?), between AdvanSix Inc. (the ?Company?) and [EMPLOYEE NAME]. 1. Grant of Option. The Company has granted you an Option to purchase [NUMBER] Shares of Common Stock, subject to the provisions of this Agreement

May 11, 2017 EX-99.1

ADVANSIX ANNOUNCES FIRST QUARTER 2017 FINANCIAL RESULTS Sales of $377 million, up 26% versus prior year Cash Flow from Operations of $31 million, up $27 million versus prior year Earnings Per Share of $0.88

Exhibit 99.1 Advan6.com News Release Media Investor Relations Debra Lewis Adam Kressel (973) 526-1767 (973) 526-1700 [email protected] [email protected] ADVANSIX ANNOUNCES FIRST QUARTER 2017 FINANCIAL RESULTS Sales of $377 million, up 26% versus prior year Cash Flow from Operations of $31 million, up $27 million versus prior year Earnings Per Share of $0.88 Parsippany, N.J., May 11, 201

May 11, 2017 8-K

AdvanSix (Current Report/Significant Event)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 11, 2017 ADVANSIX INC. (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089 (

April 13, 2017 DEFA14A

AdvanSix 14A

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 Defin

April 13, 2017 DEF 14A

AdvanSix 14A

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)) x Defin

March 6, 2017 EX-10.22

Sixth Amendment to the Amended and Restated Caprolactam and Polymer Supply Agreement dated as of March 1, 2017, by and between AdvanSix Resins & Chemicals LLC and Shaw Industries Group, Inc. (incorporated by reference to Exhibit 10.22 to the Company's Annual Report on Form 10-K dated and filed with the SEC on March 6, 2017). *

Confidential Treatment Requested by AdvanSix Inc. Exhibit 10.22 SIXTH AMENDMENT TO AMENDED AND RESTATED CAPROLACTAM AND POLYMER SUPPLY AGREEMENT THIS SIXTH AMENDMENT TO AMENDED AND RESTATED CAPROLACTAM AND POLYMER SUPPLY AGREEMENT (this “Amendment”) is entered into as of March 1, 2017, by and between AdvanSix Resins & Chemicals LLC (“Seller”), and Shaw Industries Group, Inc., a Georgia corporation

March 6, 2017 EX-10.21

Inc. (incorporated by reference to Exhibit 10.21 to the Company's Annual Report on Form 10-K dated

Confidential Treatment Requested by AdvanSix Inc. Exhibit 10.21 FIFTH AMENDMENT TO AMENDED AND RESTATED CAPROLACTAM AND POLYMER SUPPLY AGREEMENT THIS FIFTH AMENDMENT TO AMENDED AND RESTATED CAPROLACTAM AND POLYMER SUPPLY AGREEMENT (this “Amendment”) is entered into as of March 1, 2017, by and between AdvanSix Resins & Chemicals LLC (“Seller”), and Shaw Industries Group, Inc., a Georgia corporation

March 6, 2017 10-K

ASIX / AdvanSix Inc. 10-K - Annual Report -

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2016 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37774 AdvanSix Inc. (Exact name of

March 3, 2017 EX-99.1

ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2016 FINANCIAL RESULTS 4Q16 Sales of $259 million, down 18% versus prior year 4Q16 Cash Flow from Operations of $47 million, up 49% versus prior year 4Q16 EPS loss of $0.81 includes impact of significan

Exhibit 99.1 Advan6.com News Release Media Investor Relations Debra Lewis Adam Kressel (973) 526-1767 (973) 526-1700 [email protected] [email protected] ADVANSIX ANNOUNCES FOURTH QUARTER AND FULL YEAR 2016 FINANCIAL RESULTS 4Q16 Sales of $259 million, down 18% versus prior year 4Q16 Cash Flow from Operations of $47 million, up 49% versus prior year 4Q16 EPS loss of $0.81 includes impact

March 3, 2017 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 3, 2017 ADVANSIX INC. (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-2525089

February 14, 2017 EX-99.1

JOINT FILING AGREEMENT

EXHIBIT 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13G (including amendments thereto) with respect to the Common Stock of AdvanSix Inc., and further agree that this Joint Filing Agreement be included as an Exhibit to such jo

February 14, 2017 SC 13G/A

ASIX / AdvanSix Inc. / Firefly Value Partners, LP - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

December 8, 2016 EX-99.1

ADVANSIX REPORTS TEMPORARY OUTAGE AT ITS HOPEWELL FACILITY

Exhibit 99.1 Advan6.com News Release Media Investor Relations Mari Abe Adam Kressel (415) 633-3204 (973) 455-6888 [email protected] [email protected] ADVANSIX REPORTS TEMPORARY OUTAGE AT ITS HOPEWELL FACILITY Morris Plains, N.J., Dec. 8, 2016 ? AdvanSix (NYSE: ASIX) announced today that it has experienced a temporary outage at its Hopewell, Virginia facility reducing caprolactam production

December 8, 2016 8-K

AdvanSix (Current Report/Significant Event)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 8, 2016 ADVANSIX INC. (Exact name of Registrant as specified in its Charter) Delaware (State or other jurisdiction of incorporation) 1-37774 (Commission File Number) 81-25250

November 16, 2016 EX-99.1

JOINT FILING AGREEMENT

EXHIBIT 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13G (including amendments thereto) with respect to the Common Stock of AdvanSix Inc., and further agree that this Joint Filing Agreement be included as an Exhibit to such jo

November 16, 2016 SC 13G

ASIX / AdvanSix Inc. / Firefly Value Partners, LP - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 ADVANSIX INC.

November 10, 2016 10-Q

AdvanSix (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2016 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-36218 Advan

November 10, 2016 EX-99.1

ADVANSIX ANNOUNCES THIRD QUARTER 2016 FINANCIAL RESULTS Successful spin-off as an independent company Sales of $324 million, down 4% versus prior year Cash Flow from Operations of $25 million, up 5% versus prior year Earnings Per Share of $0.54

Exhibit 99.1 Advan6.com News Release Media Investor Relations Mari Abe Adam Kressel (415) 633-3204 (973) 455-6888 [email protected] [email protected] ADVANSIX ANNOUNCES THIRD QUARTER 2016 FINANCIAL RESULTS Successful spin-off as an independent company Sales of $324 million, down 4% versus prior year Cash Flow from Operations of $25 million, up 5% versus prior year Earnings Per Share of $0.

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