OMN / Omnova Solutions, Inc. - SEC Filings, Annual Report, Proxy Statement

Omnova Solutions, Inc.
US ˙ NYSE ˙ US6821291019
THIS SYMBOL IS NO LONGER ACTIVE

Basic Stats
LEI 549300XWPR0FMV5INI52
CIK 1090061
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 Omnova Solutions, Inc.
SEC Filings (Chronological Order)
This page provides a complete, chronological list of SEC Filings, excluding ownership filings which we provide elsewhere.
April 13, 2020 15-12B

OMN / Omnova Solutions, Inc. 15-12B - - 15-12B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number: 001-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in i

April 2, 2020 SC 13D/A

OMN / Omnova Solutions, Inc. / GAMCO INVESTORS, INC. ET AL Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 21) OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Telephone Number of Person Authorized to Rec

April 1, 2020 S-8 POS

OMN / Omnova Solutions, Inc. S-8 POS - - S-8 POS

As filed with the Securities and Exchange Commission on April 1, 2020 Registration Statement File No.

April 1, 2020 8-K

Regulation FD Disclosure, Changes in Control of Registrant, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Termination of a Material Definitive Agreement, Material Modification to Rights of Security Holders, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

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 1, 2020 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Emp

April 1, 2020 S-8 POS

OMN / Omnova Solutions, Inc. S-8 POS - - S-8 POS

As filed with the Securities and Exchange Commission on April 1, 2020 Registration Statement File No.

April 1, 2020 S-8 POS

OMN / Omnova Solutions, Inc. S-8 POS - - S-8 POS

As filed with the Securities and Exchange Commission on April 1, 2020 Registration Statement File No.

April 1, 2020 EX-3.2

SECOND AMENDED AND RESTATED CODE OF REGULATIONS OMNOVA SOLUTIONS INC. (THE “CORPORATION”) ARTICLE I SHAREHOLDERS’ MEETINGS

EX-3.2 3 ex32closing8-k.htm EX-3.2 EXHIBIT 3.2 SECOND AMENDED AND RESTATED CODE OF REGULATIONS OF OMNOVA SOLUTIONS INC. (THE “CORPORATION”) ARTICLE I SHAREHOLDERS’ MEETINGS Section 1. Place. All shareholders’ meetings shall be held either at the principal office of the Corporation or at any other place within or without the State of Ohio, or by means of communications equipment as authorized by ap

April 1, 2020 EX-99.1

Synthomer plc (‘Synthomer’) Completion of OMNOVA acquisition

EX-99.1 4 ex991closing8-k.htm EX-99.1 EXHIBIT 99.1 Synthomer plc 1 April 2020 Synthomer plc (‘Synthomer’) Completion of OMNOVA acquisition Further to its announcement on 26 March 2020, Synthomer is pleased to confirm that it has today completed the acquisition of OMNOVA Solutions Inc. Enquiries: Synthomer plc Tel: + 44 7764 859 147 Calum MacLean, Chief Executive Officer Stephen Bennett, Chief Fina

April 1, 2020 EX-3.1

SECOND AMENDED AND RESTATED ARTICLES OF INCORPORATION OMNOVA SOLUTIONS INC. As adopted and in effect on April 1, 2020

EX-3.1 2 ex31closing8-k.htm EX-3.1 EXHIBIT 3.1 SECOND AMENDED AND RESTATED ARTICLES OF INCORPORATION OF OMNOVA SOLUTIONS INC. As adopted and in effect on April 1, 2020 These Second Amended and Restated Articles of Incorporation amend and replace in all respects the Amended and Restated Articles of Incorporation of OMNOVA Solutions Inc. adopted on April 4, 2016. FIRST: The name of the corporation i

April 1, 2020 S-8 POS

OMN / Omnova Solutions, Inc. S-8 POS - - S-8 POS

As filed with the Securities and Exchange Commission on April 1, 2020 Registration Statement File No.

April 1, 2020 S-8 POS

OMN / Omnova Solutions, Inc. S-8 POS - - S-8 POS

As filed with the Securities and Exchange Commission on April 1, 2020 Registration Statement File No.

April 1, 2020 S-8 POS

OMN / Omnova Solutions, Inc. S-8 POS - - S-8 POS

As filed with the Securities and Exchange Commission on April 1, 2020 Registration Statement File No.

April 1, 2020 S-8 POS

OMN / Omnova Solutions, Inc. S-8 POS - - S-8 POS

As filed with the Securities and Exchange Commission on April 1, 2020 Registration Statement File No.

April 1, 2020 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on April 13, 2020, pursuant to the provisions of Rule 12d2-2 (a).

April 1, 2020 S-8 POS

OMN / Omnova Solutions, Inc. S-8 POS - - S-8 POS

As filed with the Securities and Exchange Commission on April 1, 2020 Registration Statement File No.

April 1, 2020 S-8 POS

OMN / Omnova Solutions, Inc. S-8 POS - - S-8 POS

As filed with the Securities and Exchange Commission on April 1, 2020 Registration Statement File No.

March 30, 2020 10-Q

Quarterly Report - 10-Q

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended February 29, 2020 Commission File Number 1-15147 OMNOVA SOLUTIONS INC (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identification No.) 25435 Harvard Road,

March 27, 2020 10-K/A

Annual Report - 10-K/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the year ended 11/30/2019 Commission File Number 1-15147 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15d OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to OMNOVA Solutions Inc. (Exact name of registrant as speci

March 27, 2020 SC 13D/A

OMN / Omnova Solutions, Inc. / GAMCO INVESTORS, INC. ET AL Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 20) OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Telephone Number of Person Authorized to Rec

March 27, 2020 EX-4.1

DESCRIPTION OF THE REGISTRANT'S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 4.1 DESCRIPTION OF THE REGISTRANT'S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 The following description is a summary of the material terms that are included in our amended and restated articles of incorporation (the "Articles") and our amended and restated code of regulations (the "Regulations"). This summary is qualified in its entirety by the spe

March 26, 2020 8-K

Regulation FD Disclosure

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 26, 2020 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Em

March 6, 2020 SC 13D/A

OMN / Omnova Solutions, Inc. / GAMCO INVESTORS, INC. ET AL Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 19) OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Telephone Number of Person Authorized to Rec

February 12, 2020 SC 13G/A

OMN / Omnova Solutions, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* OMNOVA SOLUTIONS INC (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sc

February 11, 2020 SC 13G

OMN / Omnova Solutions, Inc. / VANGUARD GROUP INC - SCHEDULE 13G Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 Name of issuer: OMNOVA Solutions Inc Title of Class of Securities: Common Stock CUSIP Number: 682129101 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 13d-1(b) ☐ Ru

February 10, 2020 SC 13G/A

OMN / Omnova Solutions, Inc. / RBC Global Asset Management (U.S.) - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 7) OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whic

January 31, 2020 EX-21.1

EX-21.1

Exhibit 21.1 List of Subsidiaries of OMNOVA Solutions Inc.(1) The following is a list of the subsidiaries of OMNOVA Solutions Inc., an Ohio corporation (the “Corporation”) as of November 30, 2019. Name of Corporation State of Incorporation or Jurisdiction OMNOVA Solutions Portugal S.A. Portugal OMNOVA Engineered Surfaces (Thailand) Co., Ltd Thailand limited company OMNOVA Decorative Products (Shan

January 31, 2020 10-K

Annual Report - 10-K

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 year ended 11/30/2019 Commission File Number 1-15147 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15d OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to OMNOVA Solutions Inc. (Exact name of registrant as specifie

January 31, 2020 EX-24.1

OMNOVA SOLUTIONS INC. POWER OF ATTORNEY

EXHIBIT 24.1 OMNOVA SOLUTIONS INC. POWER OF ATTORNEY Each of the undersigned, an officer, a director, or both of OMNOVA Solutions Inc., an Ohio corporation, hereby constitutes and appoints Paul F. DeSantis, James C. LeMay, Frank P. Esposito, and each of them, as his or her true and lawful attorney-in-fact with full power of substitution and resubstitution, to sign in his or her name, place, and st

January 27, 2020 SC 13G/A

OMN / Omnova Solutions, Inc. / Wellington Management Group LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 6 )* OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

January 27, 2020 SC 13G/A

OMN / Omnova Solutions, Inc. / ARP AMERICAS LLC - SCHEDULE 13G HOLDINGS REPORT AMENDMENT Passive Investment

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

January 15, 2020 EX-99.1

European Commission Conditionally Approves Proposed Acquisition of OMNOVA Solutions Inc.

Exhibit 99.1 News Release Investor Contact: Frank Esposito Investor Relations (216) 682-7003 European Commission Conditionally Approves Proposed Acquisition of OMNOVA Solutions Inc. BEACHWOOD, OHIO, January 15, 2020 - OMNOVA Solutions Inc. (NYSE: OMN) announced today that its proposed acquisition by Synthomer plc has been approved by the European Commission, subject to Synthomer’s divestiture of i

January 15, 2020 8-K

Financial Statements and Exhibits, Other Events

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 15, 2020 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS

November 25, 2019 SC 13G

OMN / Omnova Solutions, Inc. / ARP AMERICAS LLC - SCHEDULE 13G HOLDINGS REPORT Passive Investment

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

October 10, 2019 EX-99.1

OMNOVA Solutions Shareholders Approve Merger Agreement with Synthomer plc

EX-99.1 2 d811867dex991.htm EX-99.1 Exhibit 99.1 News Release Investor Contact: Frank Esposito Investor Relations (216) 682-7003 OMNOVA Solutions Shareholders Approve Merger Agreement with Synthomer plc BEACHWOOD, OHIO, October 10, 2019 - OMNOVA Solutions Inc. (NYSE: OMN) announced that during a special shareholder meeting today, OMNOVA shareholders approved the merger agreement under which Syntho

October 10, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

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 10, 2019 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Em

October 3, 2019 DEFA14A

OMN / Omnova Solutions, 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 þ Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Defin

September 26, 2019 10-Q

Quarterly Report - 10-Q

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended August 31, 2019 Commission File Number 1-15147 OMNOVA SOLUTIONS INC (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identification No.) 25435 Harvard Road, B

September 25, 2019 DEFA14A

OMN / Omnova Solutions, 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 þ Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Defin

September 9, 2019 DEFM14A

OMN / Omnova Solutions, Inc. DEFM14A - - DEFM14A

DEFM14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

August 29, 2019 SC 13D/A

OMN / Omnova Solutions, Inc. / GAMCO INVESTORS, INC. ET AL Activist Investment

SC 13D/A 1 omn18.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 18) OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Telephone Number of Per

August 27, 2019 DEFA14A

OMN / Omnova Solutions, 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 þ Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Defin

August 16, 2019 PREM14A

OMN / Omnova Solutions, Inc. PREM14A - - PREM14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☐ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy S

July 31, 2019 DEFA14A

OMN / Omnova Solutions, 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 þ Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Defin

July 31, 2019 SC 13D/A

OMN / Omnova Solutions, Inc. / GAMCO INVESTORS, INC. ET AL Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 17) OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Telephone Number of Person Authorized to Rec

July 26, 2019 SC 13D/A

OMN / Omnova Solutions, Inc. / GAMCO INVESTORS, INC. ET AL Activist Investment

SC 13D/A 1 omn16.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 16) OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Telephone Number of Per

July 12, 2019 SC 13D/A

OMN / Omnova Solutions, Inc. / GAMCO INVESTORS, INC. ET AL Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 15) OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Telephone Number of Person Authorized to Rec

July 3, 2019 DEFA14A

OMN / Omnova Solutions, 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 þ Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Defin

July 3, 2019 EX-99.2

Important Disclosures

EX-99.2 4 q22019ex992.htm EXHIBIT 99.2 EXHIBIT 99.2 25435 Harvard Road Beachwood, OH 44122-6201 USA Tel: 216-682-7071 Fax: 216-453-0108 www.omnova.com Anne Noonan President and Chief Executive Officer July 3, 2019 Dear OMNOVA Employees, Today I am pleased to announce that OMNOVA Solutions has entered into a definitive agreement to be acquired by Synthomer, a $2.1 billion global supplier of special

July 3, 2019 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

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 3, 2019 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Empl

July 3, 2019 EX-2.1

AGREEMENT AND PLAN OF MERGER by and among SYNTHOMER PLC, SPIRIT USA HOLDINGS INC., SYNTHOMER USA LLC OMNOVA SOLUTIONS INC. dated as of July 3, 2019

EXHIBIT 2.1 EXECUTION VERSION AGREEMENT AND PLAN OF MERGER by and among SYNTHOMER PLC, SPIRIT USA HOLDINGS INC., SYNTHOMER USA LLC and OMNOVA SOLUTIONS INC. dated as of July 3, 2019 NAI-1507512591v13 TABLE OF CONTENTS Page ARTICLE I THE MERGER 6 Section 1.1 The Merger 6 Section 1.2 Closing 6 Section 1.3 Effective Time 6 Section 1.4 Effect of the Merger 6 Section 1.5 Articles of Incorporation and C

July 3, 2019 EX-99.1

OMNOVA to be acquired by Synthomer plc, London for $10.15 per share; reports fiscal 2019 second-quarter earnings

EX-99.1 3 q22019pressreleasef.htm EXHIBIT 99.1 Exhibit 99.1 News Release Investor Contact: Frank Esposito Investor Relations (216) 682-7003 Media Contact: Amy McGahan Dix & Eaton (216) 241-3027 OMNOVA to be acquired by Synthomer plc, London for $10.15 per share; reports fiscal 2019 second-quarter earnings BEACHWOOD, OHIO, July 3, 2019 - OMNOVA Solutions Inc. (NYSE: OMN) today announced that it has

July 3, 2019 DEFA14A

OMN / Omnova Solutions, Inc. DEFA14A - - 8-K

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 3, 2019 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Empl

July 3, 2019 EX-2.1

AGREEMENT AND PLAN OF MERGER by and among SYNTHOMER PLC, SPIRIT USA HOLDINGS INC., SYNTHOMER USA LLC OMNOVA SOLUTIONS INC. dated as of July 3, 2019

EXHIBIT 2.1 EXECUTION VERSION AGREEMENT AND PLAN OF MERGER by and among SYNTHOMER PLC, SPIRIT USA HOLDINGS INC., SYNTHOMER USA LLC and OMNOVA SOLUTIONS INC. dated as of July 3, 2019 NAI-1507512591v13 TABLE OF CONTENTS Page ARTICLE I THE MERGER 6 Section 1.1 The Merger 6 Section 1.2 Closing 6 Section 1.3 Effective Time 6 Section 1.4 Effect of the Merger 6 Section 1.5 Articles of Incorporation and C

July 3, 2019 EX-99.2

Important Disclosures

EXHIBIT 99.2 25435 Harvard Road Beachwood, OH 44122-6201 USA Tel: 216-682-7071 Fax: 216-453-0108 www.omnova.com Anne Noonan President and Chief Executive Officer July 3, 2019 Dear OMNOVA Employees, Today I am pleased to announce that OMNOVA Solutions has entered into a definitive agreement to be acquired by Synthomer, a $2.1 billion global supplier of specialty chemicals and aqueous polymers based

July 3, 2019 EX-99.1

OMNOVA to be acquired by Synthomer plc, London for $10.15 per share; reports fiscal 2019 second-quarter earnings

Exhibit 99.1 News Release Investor Contact: Frank Esposito Investor Relations (216) 682-7003 Media Contact: Amy McGahan Dix & Eaton (216) 241-3027 OMNOVA to be acquired by Synthomer plc, London for $10.15 per share; reports fiscal 2019 second-quarter earnings BEACHWOOD, OHIO, July 3, 2019 - OMNOVA Solutions Inc. (NYSE: OMN) today announced that it has entered into a definitive agreement to be acqu

July 3, 2019 10-Q

Quarterly Report - 10-Q

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended May 31, 2019 Commission File Number 1-15147 OMNOVA SOLUTIONS INC (Exact name of registrant as specified in its charter) Ohio 341897652 (State of Incorporation) (I.R.S. Employer Identification No.) 25435 Harvard Road, Beach

July 3, 2019 EX-10.1

Second Amended and Restated Corporate Officers’ Severance Plan

EX-10.1 2 omn-05312019xex101.htm EXHIBIT 10.1 Second Amended and Restated Corporate Officers’ Severance Plan 1. Purpose. The purpose of the Second Amended and Restated Corporate Officers’ Severance Plan (the “Plan”) of OMNOVA Solutions Inc. (the “Company”) is to attract and retain qualified executives for the Company by providing Plan participants with the opportunity to receive severance benefits

April 12, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

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 8, 2019 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Emplo

March 27, 2019 EX-99.1

OMNOVA reports ninth consecutive quarter of year-over-year growth in Specialty Segment volume

Exhibit 99.1 News Release Contact: Frank Esposito Investor Relations (216) 682-7003 OMNOVA reports ninth consecutive quarter of year-over-year growth in Specialty Segment volume BEACHWOOD, OHIO, March 27, 2019 - First Quarter 2019 Highlights • Loss per share for the first quarter of 2019 was $0.10 compared to diluted earnings per share of $0.16 last year. • Adjusted Loss per Share for the quarter

March 27, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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 27, 2019 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Em

March 27, 2019 EX-99.2

Exhibit 99.2 Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation – First Quarter 2019 NYSE LISTED: “OMN” Cautionary Statements › Forward Looking Statements This presentation includes descriptions of OMNOVA's curre

a1q2019investordeck03272 Exhibit 99.2 Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation – First Quarter 2019 NYSE LISTED: “OMN” Cautionary Statements › Forward Looking Statements This presentation includes descriptions of OMNOVA's current business, operations, assets and other matters affecting the Company as well as "forward-looking statements" as defined by

March 27, 2019 EX-10.1

First Amendment to the Amended and Restated Corporate Officers’ Severance Plan

First Amendment to the Amended and Restated Corporate Officers’ Severance Plan 1. Purpose and Background. (a)OMNOVA Solutions Inc. (the “Company”) maintains the Amended and Restated Corporate Officers’ Severance Plan, effective April 1, 2018 (the “Plan”), to attract and retain qualified executives for the Company by providing Plan participants with the opportunity to receive severance benefits in

March 27, 2019 10-Q

Quarterly Report - 10-Q

Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended February 28, 2019 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identification No.)

March 22, 2019 8-K

Submission of Matters to a Vote of Security Holders

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 20, 2019 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Empl

February 22, 2019 EX-99.1

Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation – Fourth Quarter 2019 NYSE LISTED: “OMN” Cautionary Statements › Forward Looking Statements This presentation includes descriptions of OMNOVA's current business,

a4q2018investordeck Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation – Fourth Quarter 2019 NYSE LISTED: “OMN” Cautionary Statements › Forward Looking Statements This presentation includes descriptions of OMNOVA's current business, operations, assets and other matters affecting the Company as well as "forward-looking statements" as defined by federal securities laws.

February 22, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS E

February 12, 2019 SC 13G/A

OMN / Omnova Solutions, Inc. / Wellington Management Group LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5 )* OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

February 8, 2019 SC 13G

OMN / Omnova Solutions, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* OMNOVA SOLUTIONS INC (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sch

February 6, 2019 DEF 14A

OMN / Omnova Solutions, Inc. 2019 DEFINITIVE PROXY STATEMENT

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 þ Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) þ Defin

January 31, 2019 EX-99.1

OMNOVA reports eighth consecutive quarter of year-over-year growth in Specialty Segment volume and improvement in profitability in Q4 2018

Exhibit 99.1 News Release Contact: Frank Esposito Investor Relations (216) 682-7003 OMNOVA reports eighth consecutive quarter of year-over-year growth in Specialty Segment volume and improvement in profitability in Q4 2018 BEACHWOOD, OHIO, January 31, 2019 - Fourth Quarter 2018 Highlights • Diluted earnings per share for Q4 of 2018 was $0.15 compared to a loss per share of $2.22 last year. • Adjus

January 31, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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 31, 2019 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS

January 31, 2019 EX-21.1

EX-21.1

Exhibit 21.1 List of Subsidiaries of OMNOVA Solutions Inc.(1) The following is a list of the subsidiaries of OMNOVA Solutions Inc., an Ohio corporation (the “Corporation”) as of November 30, 2018. Name of Corporation State of Incorporation or Jurisdiction OMNOVA Performance Chemicals (UK) Ltd. United Kingdom limited company OMNOVA Engineered Surfaces (Thailand) Co., Ltd Thailand limited company OM

January 31, 2019 EX-24.1

OMNOVA SOLUTIONS INC. POWER OF ATTORNEY

EXHIBIT 24.1 OMNOVA SOLUTIONS INC. POWER OF ATTORNEY Each of the undersigned, an officer, a director, or both of OMNOVA Solutions Inc., an Ohio corporation, hereby constitutes and appoints Paul F. DeSantis, James C. LeMay, Frank P. Esposito, and each of them, as his or her true and lawful attorney-in-fact with full power of substitution and resubstitution, to sign in his or her name, place, and st

January 31, 2019 10-K

OMN / Omnova Solutions, Inc. 10-K (Annual Report)

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 year ended November 30, 2018 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identification No.) 25435 Harvard Road, Beac

January 30, 2019 SC 13G/A

OMN / Omnova Solutions, Inc. / RBC Global Asset Management (U.S.) - SC 13G/A Passive Investment

SC 13G/A 1 d675668dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 6) OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desig

September 26, 2018 EX-99.1

OMNOVA reports seventh consecutive quarter of year-over-year growth in Specialty Segment volume in Q3 2018 and acquisition of Portugal-based manufacturer for its Specialty Solutions segment

Exhibit 99.1 News Release Contact: Frank Esposito Investor Relations (216) 682-7003 OMNOVA reports seventh consecutive quarter of year-over-year growth in Specialty Segment volume in Q3 2018 and acquisition of Portugal-based manufacturer for its Specialty Solutions segment BEACHWOOD, OHIO, September 26, 2018 - Third Quarter 2018 Highlights • Loss per share for Q3 of 2018 was $0.04 compared to earn

September 26, 2018 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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 26, 2018 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IR

September 26, 2018 EX-99.2

Exhibit 99.2 Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation – Third Quarter 2018 NYSE LISTED: “OMN” Cautionary Statements › Forward Looking Statements This presentation includes descriptions of OMNOVA's curre

a3q2018investordeck Exhibit 99.2 Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation – Third Quarter 2018 NYSE LISTED: “OMN” Cautionary Statements › Forward Looking Statements This presentation includes descriptions of OMNOVA's current business, operations, assets and other matters affecting the Company as well as "forward-looking statements" as defined by fede

September 26, 2018 10-Q

OMN / Omnova Solutions, Inc. 10-Q (Quarterly Report)

Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended August 31, 2018 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identification No.) 25

September 26, 2018 EX-12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (In millions, except ratios)

Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (In millions, except ratios) Nine Months Ended August 31, Year Ended November 30, 2018 2017 2016 2015 2014 Pre-tax income (loss) income from continuing operations (a) $ 13.4 $ (4.1 ) $ 9.9 $ (21.1 ) $ 11.7 Adjustment for (income) loss from equity investees — — — — — Pre-tax income (loss) from continuing operations before adjustment for

July 20, 2018 EX-99.1

Exhibit 99.1 Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation – Second Quarter 2018 NYSE LISTED: “OMN” Cautionary Statements › Forward Looking Statements This presentation includes descriptions of OMNOVA's curr

a2q2018investordeck Exhibit 99.1 Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation – Second Quarter 2018 NYSE LISTED: “OMN” Cautionary Statements › Forward Looking Statements This presentation includes descriptions of OMNOVA's current business, operations, assets and other matters affecting the Company as well as "forward-looking statements" as defined by fed

July 20, 2018 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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 20, 2018 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Emplo

June 28, 2018 8-K

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

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 28, 2018 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Emp

June 28, 2018 EX-99.1

- more -

Exhibit 99.1 News Release Contact: Paul DeSantis Investor Relations (216) 682-7003 OMNOVA Reports 27% year-over-year growth in Specialty Segment profitability in Q2 2018 BEACHWOOD, OHIO, June 28, 2018 - Second Quarter 2018 Highlights • Earnings per Diluted Share for Q2 of 2018 were $0.19 compared to a loss of $0.14 last year. • Adjusted Diluted Earnings per Share for the quarter were $0.20 compare

June 28, 2018 EX-10.3

Amended and Restated Corporate Officers’ Severance Plan

EX-10.3 4 omn-05312018xex103.htm EXHIBIT 10.3 EXHIBIT 10.3 Amended and Restated Corporate Officers’ Severance Plan 1.Purpose and Background. The purpose of the Amended and Restated Corporate Officers’ Severance Plan (the “Plan”) of OMNOVA Solutions Inc. (the “Company”) is to attract and retain qualified executives for the Company by providing Plan participants with the opportunity to receive sever

June 28, 2018 EX-12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (In millions, except ratios)

Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (In millions, except ratios) Six Months Ended May 31, Year Ended November 30, 2018 2017 2016 2015 2014 Pre-tax income (loss) income from continuing operations (a) $ 13.1 $ (4.1 ) $ 9.9 $ (21.1 ) $ 11.7 Adjustment for (income) loss from equity investees — — — — — Pre-tax income (loss) from continuing operations before adjustment for min

June 28, 2018 EX-10.1

[Signature Page to Amendment]

EXHIBIT 10.1 EXECUTION VERSION AMENDMENT No. 4, dated as of March 2, 2018 (this “Amendment”), to the Amended and Restated Term Loan Credit Agreement, dated as of December 9, 2010 (as amended by Amendment No. 1, dated as of March 7, 2013, as further amended by Amendment No. 2, dated as of March 28, 2014, as further amended by Amendment No. 3, dated as of August 26, 2016, and as further amended, res

June 28, 2018 10-Q

OMN / Omnova Solutions, Inc. 10-Q (Quarterly Report)

10-Q 1 omn-0531201810q.htm 10-Q Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended May 31, 2018 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Em

June 28, 2018 EX-10.2

AMENDMENT NO. 1 TO THIRD AMENDED AND RESTATED CREDIT

EX-10.2 3 omn-05312018xex102.htm EXHIBIT 10.2 EXHIBIT 10.2 EXECUTION VERSION AMENDMENT NO. 1 TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT This AMENDMENT NO. 1 TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”) dated as of May 31, 2018 is by and among OMNOVA Solutions Inc. (the “Borrower”), the other Loan Parties party hereto, the Lenders party hereto, and JPMorgan Chase Bank, N.A.

April 11, 2018 EX-99.1

NYSE LISTED: “OMN” Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation – First Quarter 2018 INVESTOR PRESENTATION | First Quarter 2018 NYSE OMN › Forward Looking Statements Cautionary Statements This presentation

a1q2018investordeck41018 NYSE LISTED: “OMN” Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation – First Quarter 2018 INVESTOR PRESENTATION | First Quarter 2018 NYSE OMN › Forward Looking Statements Cautionary Statements This presentation includes descriptions of OMNOVA's current business, operations, assets and other matters affecting the Company as well as "forward-looking statements" as defined by federal securities laws.

April 11, 2018 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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 11, 2018 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Empl

March 28, 2018 EX-99.1

- more -

Exhibit 99.1 News Release Contact: Paul DeSantis Investor Relations (216) 682-7003 OMNOVA Reports 43% year-over-year growth in Specialty Segment profitability in Q1 2018 BEACHWOOD, OHIO, March 28, 2018 - First Quarter 2018 Highlights • Earnings per Diluted Share for Q1 of 2018 were $0.16 compared to $0.08 last year. • Adjusted Diluted Earnings per Share for the quarter were $0.09 compared to $0.05

March 28, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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 28, 2018 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Em

March 28, 2018 EX-12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (In millions, except ratios)

Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (In millions, except ratios) Three Months Ended February 28, Year Ended November 30, 2018 2017 2016 2015 2014 Pre-tax income (loss) income from continuing operations (a) $ 2.2 $ (4.1 ) $ 9.9 $ (21.1 ) $ 11.7 Adjustment for (income) loss from equity investees — — — — — Pre-tax income (loss) from continuing operations before adjustment f

March 28, 2018 10-Q

OMN / Omnova Solutions, Inc. 10-Q (Quarterly Report)

Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended February 28, 2018 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identification No.)

March 28, 2018 EX-10.1

SEPARATION AGREEMENT AND RELEASE

Exhibit 10.1 SEPARATION AGREEMENT AND RELEASE This Separation Agreement and Release (the “Agreement”) is between OMNOVA Solutions Inc., an Ohio corporation (“OMNOVA”), and Jay T. Austin (“Executive”). In consideration of the mutual promises contained in this Agreement and intending to be legally bound, OMNOVA and Executive hereby agree as follows: 1.Separation of Employment. For all purposes, Exec

March 27, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Submission of Matters to a Vote of Security Holders

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 22, 2018 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Empl

March 9, 2018 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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 9, 2018 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Emplo

March 9, 2018 EX-99.1

NYSE LISTED: “OMN” Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation – Year-End 2017 NYSE: “OMN” Cautionary Statements › Forward-Looking Statements Year End 2017INVESTOR PRESENTATION |2 This presentation include

year2017investordeck0307 NYSE LISTED: “OMN” Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation – Year-End 2017 NYSE: “OMN” Cautionary Statements › Forward-Looking Statements Year End 2017INVESTOR PRESENTATION |2 This presentation includes descriptions of OMNOVA's current business, operations, assets and other matters affecting the Company as well as "forward-looking statements" as defined by federal securities laws.

March 5, 2018 8-K

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

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 2, 2018 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Emp

February 26, 2018 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

Document 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 26, 2018 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

February 26, 2018 EX-99.1

NYSE LISTED: “OMN” Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation – Year-End 2017 NYSE: “OMN” Cautionary Statements › Forward-Looking Statements Year End 2017INVESTOR PRESENTATION |2 This presentation include

year2017investordeck0226 NYSE LISTED: ?OMN? Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation ? Year-End 2017 NYSE: ?OMN? Cautionary Statements ? Forward-Looking Statements Year End 2017INVESTOR PRESENTATION |2 This presentation includes descriptions of OMNOVA's current business, operations, assets and other matters affecting the Company as well as "forward-looking statements" as defined by federal securities laws.

February 12, 2018 SC 13G/A

OMN / Omnova Solutions, Inc. / RBC Global Asset Management (U.S.) - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5) OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) December 31, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whic

February 9, 2018 DEF 14A

OMN / Omnova Solutions, Inc. 2018 DEFINITIVE PROXY STATEMENT

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)

February 9, 2018 SC 13G/A

OMN / Omnova Solutions, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 dfs673.htm SCHEDULE 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* OMNOVA SOLUTIONS INC (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) December 31, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designa

February 8, 2018 SC 13G/A

OMN / Omnova Solutions, Inc. / Wellington Management Group LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4 )* OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) December 29, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

February 2, 2018 EX-24.1

OMNOVA SOLUTIONS INC. POWER OF ATTORNEY

EXHIBIT 24 OMNOVA SOLUTIONS INC. POWER OF ATTORNEY Each of the undersigned, an officer, a director, or both of OMNOVA Solutions Inc., an Ohio corporation, hereby constitutes and appoints Paul F. DeSantis, James C. LeMay, Frank P. Esposito, and each of them, as his or her true and lawful attorney-in-fact with full power of substitution and resubstitution, to sign in his or her name, place, and stea

February 2, 2018 10-K

OMN / Omnova Solutions, Inc. 10-K (Annual Report)

10-K 1 omn-20171130x10k.htm 10-K 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 year ended November 30, 2017 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identificat

February 2, 2018 EX-10.12

EXHIBIT 10.12 OMNOVA Solutions Inc. Participant: [participant name] Global ID: [participant global ID] Award Type: Restricted Stock Units Plan Name: 2017 EIP - Restricted Share Units Award Date: [award date] Award Expiration Date: N/A Total Granted:

omn-11302017ex1012 EXHIBIT 10.12 OMNOVA Solutions Inc. Participant: [participant name] Global ID: [participant global ID] Award Type: Restricted Stock Units Plan Name: 2017 EIP - Restricted Share Units Award Date: [award date] Award Expiration Date: N/A Total Granted: [total granted] Award Price: USD [award price per share] Vesting Schedule Shares/Options Awarded Vest Date [amount vesting 1] [vest

February 2, 2018 EX-10.10

EXHIBIT 10.10 OMNOVA Solutions Inc. Participant: [participant name] Global ID: [participant global ID] Award Type: Restricted Stock Units Plan Name: 2017 EIP - Restricted Share Units Award Date: [award date] Award Expiration Date: N/A Total Granted:

omn-11302017ex1010 EXHIBIT 10.10 OMNOVA Solutions Inc. Participant: [participant name] Global ID: [participant global ID] Award Type: Restricted Stock Units Plan Name: 2017 EIP - Restricted Share Units Award Date: [award date] Award Expiration Date: N/A Total Granted: [total granted] Award Price: USD [award price per share] Vesting Schedule Shares/Options Awarded Vest Date [amount vesting 1] [vest

February 2, 2018 EX-10.11

EXHIBIT 10.11 1 [Performance Period] PERFORMANCE SHARES AGREEMENT This [Performance Period] PERFORMANCE SHARES AGREEMENT (this “Agreement”) is made and entered into as of [month, day, year] between OMNOVA Solutions Inc., an Ohio corporation (the “Com

omn-11302017ex1011 EXHIBIT 10.11 1 [Performance Period] PERFORMANCE SHARES AGREEMENT This [Performance Period] PERFORMANCE SHARES AGREEMENT (this “Agreement”) is made and entered into as of [month, day, year] between OMNOVA Solutions Inc., an Ohio corporation (the “Company”), and [executive name] (“Executive”). WHEREAS, under the terms of the OMNOVA Solutions Inc. 2017 Equity Incentive Plan as in

February 2, 2018 EX-21.1

EX-21.1

Exhibit 21.1 List of Subsidiaries of OMNOVA Solutions Inc.(1) The following is a list of the subsidiaries of OMNOVA Solutions Inc., an Ohio corporation (the “Corporation”) as of November 30, 2017. Name of Corporation State of Incorporation or Jurisdiction OMNOVA Performance Chemicals (UK) Ltd. United Kingdom limited company OMNOVA Engineered Surfaces (Thailand) Co., Ltd Thailand limited company OM

February 2, 2018 EX-12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratios)

Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratios) Year Ended November 30, 2017 2016 2015 2014 2013 Pre-tax income (loss) from continuing operations $ (4.1 ) $ 9.9 $ (21.1 ) $ 11.7 $ 26.5 Adjustment for (income) loss from equity investees — — — — — Pre-tax income (loss) from continuing operations before adjustment for minority interests in consolida

January 31, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Document 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 31, 2018 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number

January 31, 2018 EX-99.1

OMNOVA Reports 5.1% volume growth in specialties for Q4 2017 and 3.5% for full year 2017, as the Company’s strategy gains momentum

Exhibit Exhibit 99 News Release Contact: Paul DeSantis Frank Esposito Investor Relations (216) 682-7003 OMNOVA Reports 5.

January 12, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

Document 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 11, 2018 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Numb

October 13, 2017 CORRESP

OMN / Omnova Solutions, Inc. ESP

Document 25435 Harvard Road Beachwood, OH 44122 Tel: 216-682-7000 Fax: 216-453-0102 www.

October 3, 2017 EX-99.1

NYSE LISTED: “OMN” Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation – Third Quarter 2017 Exhibit 99.1 NYSE: “OMN” Cautionary Statements › Forward-Looking Statements Third Quarter 2017INVESTOR PRESENTATION |2 Th

a3q2017investordeck92b36 NYSE LISTED: ?OMN? Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation ? Third Quarter 2017 Exhibit 99.

October 3, 2017 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

Document 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 3, 2017 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number)

September 28, 2017 EX-99.1

OMNOVA Reports Diluted Earnings per Share increased 80% in 2017 Third Quarter

Exhibit Exhibit 99.1 News Release Contact: Paul DeSantis Investor Relations (216) 682-7003 OMNOVA Reports Diluted Earnings per Share increased 80% in 2017 Third Quarter BEACHWOOD, OHIO, September 28, 2017 - Third Quarter 2017 Highlights • Diluted Earnings per Share of $0.18 compared to $0.10 in last year’s third quarter. Adjusted Diluted Earnings per Share increased 79% to $0.25, compared to $0.14

September 28, 2017 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Document 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, 2017 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Nu

September 28, 2017 10-Q

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended August 31, 2017 Commission File Number 1-15147 OMNOVA Solutions Inc. (Ex

Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended August 31, 2017 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identification No.) 25

September 28, 2017 EX-12.1

Ratio of Earnings to fixed charges.

Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (In millions, except ratios) Nine Months Ended August 31, Year Ended November 30, 2017 2016 2015 2014 2013 Pre-tax income (loss) income from continuing operations (a) $ 12.1 $ 9.9 $ (21.1 ) $ 11.7 $ 26.5 Adjustment for (income) loss from equity investees — — — — — Pre-tax income (loss) from continuing operations before adjustment for m

September 21, 2017 CORRESP

OMN / Omnova Solutions, Inc. ESP

Document 25435 Harvard Road Beachwood, OH 44122 Tel: 216-682-7000 Fax: 216-453-0102 www.

July 11, 2017 8-K

Omnova Solutions 8-K (Current Report/Significant Event)

Document 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 11, 2017 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (

July 11, 2017 EX-99.1

NYSE LISTED: “OMN” Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation – Second Quarter 2017 NYSE: “OMN” Cautionary Statements This presentation includes descriptions of OMNOVA's current business, operations, asse

masterdeckomnova2q2012a6 NYSE LISTED: ?OMN? Global Innovator of Performance-Enhancing Chemistries and Surfaces Investor Presentation ? Second Quarter 2017 NYSE: ?OMN? Cautionary Statements This presentation includes descriptions of OMNOVA's current business, operations, assets and other matters affecting the Company as well as "forward-looking statements" as defined by federal securities laws.

June 28, 2017 EX-99.2

OMNOVA SOLUTIONS INC. Non-GAAP and other Financial Matters Three Months Ended February 28, 2017 (In millions except per share data) Specialty Solutions Performance Materials Combined Segments Corporate Consolidated Net Sales $ 93.7 $ 80.9 $ 174.6 $ —

Exhibit Exhibit 99.2 Effective for the fiscal quarter ended May 31, 2017, OMNOVA Solutions Inc. (the "Company") began reporting its financial results under two new reporting segments: "Specialty Solutions", a segment focused on the Company's higher growth, specialty business lines, and "Performance Materials", a segment comprised of the Company's mature business lines. The business lines within th

June 28, 2017 8-K

Omnova Solutions 8-K (Current Report/Significant Event)

Document 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 28, 2017 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number)

June 28, 2017 EX-99.1

Three Months Ended

EX-99.1 2 exhibit1.htm EXHIBIT 99.1 Exhibit 99.1 Beginning with its quarterly report on Form 10-Q filed on June 28, 2017 for the fiscal quarter ended May 31, 2017, OMNOVA Solutions Inc. (the "Company") began reporting its financial results under two new reporting segments: "Performance Materials", a segment comprised of the Company's mature business lines, and "Specialty Solutions", a segment focu

June 28, 2017 8-K

Omnova Solutions 8-K (Current Report/Significant Event)

Document 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 28, 2017 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number)

June 28, 2017 EX-99.1

OMNOVA Reports Growth in Specialty Businesses in 2017 Second Quarter

Exhibit Exhibit 99.1 News Release Contact: Paul DeSantis Chet Fox Investor Relations (216) 682-7003 OMNOVA Reports Growth in Specialty Businesses in 2017 Second Quarter BEACHWOOD, OHIO, June 28, 2017 - Second Quarter 2017 Highlights ? Specialty Solutions sales grew 14% compared to the prior year, with operating margins of 14.9%, while Performance Materials increased sales by 4%, with operating mar

June 28, 2017 10-Q

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended May 31, 2017 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact

Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended May 31, 2017 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identification No.) 25435

June 28, 2017 EX-12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (In millions, except ratios)

Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (In millions, except ratios) Six Months Ended May 31, Year Ended November 30, 2017 2016 2015 2014 2013 Pre-tax income (loss) income from continuing operations (a) $ (1.9 ) $ 9.9 $ (21.1 ) $ 11.7 $ 26.5 Adjustment for (income) loss from equity investees — — — — — Pre-tax income (loss) from continuing operations before adjustment for min

April 27, 2017 8-K

Omnova Solutions 8-K (Current Report/Significant Event)

Document 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 27, 2017 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number)

April 27, 2017 EX-99.1

Why OMNOVA Solutions? A Look Forward 1st Quarter 2017 Investor Presentation Global Innovator of Performance-Enhancing Chemistries and Surfaces Cautionary Statements 2 Forward-Looking Statements This presentation includes descriptions of OMNOVA's curr

alookforward1stqtr2017fi Why OMNOVA Solutions? A Look Forward 1st Quarter 2017 Investor Presentation Global Innovator of Performance-Enhancing Chemistries and Surfaces Cautionary Statements 2 Forward-Looking Statements This presentation includes descriptions of OMNOVA's current business, operations, assets and other matters affecting the Company as well as "forward-looking statements" as defined by federal securities laws.

April 7, 2017 SC 13G/A

OMN / Omnova Solutions, Inc. / RBC Global Asset Management (U.S.) - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4) OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) March 31, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which t

March 29, 2017 EX-12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (In millions, except ratios)

Exhibit Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (In millions, except ratios) Three Months Ended February 28, Year Ended November 30, 2017 2016 2015 2014 2013 Pre-tax income (loss) income from continuing operations (a) $ 2.0 $ 9.9 $ (21.1 ) $ 11.7 $ 26.5 Adjustment for (income) loss from equity investees ? ? ? ? ? Pre-tax income (loss) from continuing operations before adjust

March 29, 2017 EX-24

POWER OF ATTORNEY

Exhibit EXHIBIT 24 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned officers and directors of OMNOVA Solutions Inc.

March 29, 2017 EX-24

POWER OF ATTORNEY

Exhibit EXHIBIT 24 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned officers and directors of OMNOVA Solutions Inc.

March 29, 2017 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Document 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 29, 2017 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number

March 29, 2017 EX-99.1

OMNOVA Solutions Continues Year-Over-Year Earnings Growth In 2017 First Quarter

Exhibit Exhibit 99.1 News Release Contact: Sandi Noah Paul DeSantis Communications Chet Fox (216) 682-7011 Investor Relations [email protected] (216) 682-7003 OMNOVA Solutions Continues Year-Over-Year Earnings Growth In 2017 First Quarter BEACHWOOD, OHIO, March 29, 2017 - First Quarter 2017 Highlights ? Reported earnings per diluted share was $0.08, compared with a loss of $0.03 last year. Adj

March 29, 2017 S-8

Omnova Solutions S-8

Document As filed with the Securities and Exchange Commission on March 29, 2017 Registration No.

March 29, 2017 10-Q

Omnova Solutions 10-Q (Quarterly Report)

Document Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended February 28, 2017 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identificat

March 29, 2017 S-8 POS

Omnova Solutions S-8

Document As filed with the Securities and Exchange Commission on March 29, 2017 Registration No.

March 24, 2017 8-K

Submission of Matters to a Vote of Security Holders

8-K 1 form8-kshareholderresults.htm 8-K 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 24, 2017 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorpora

February 13, 2017 8-K

Financial Statements and Exhibits, Other Events

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 13, 2017 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS E

February 13, 2017 EX-99.1

COMPANY CONFIDENTIAL Why OMNOVA Solutions? A Look Forward 2016 Year End Investor Presentation Global Innovator of Performance-Enhancing Chemistries and Surfaces COMPANY CONFIDENTIAL Cautionary Statements 2 Forward-Looking Statements This presentation

alookforward4thqtr COMPANY CONFIDENTIAL Why OMNOVA Solutions? A Look Forward 2016 Year End Investor Presentation Global Innovator of Performance-Enhancing Chemistries and Surfaces COMPANY CONFIDENTIAL Cautionary Statements 2 Forward-Looking Statements This presentation includes descriptions of OMNOVA's current business, operations, assets and other matters affecting the Company as well as "forward-looking statements" as defined by federal securities laws.

February 10, 2017 SC 13G/A

OMN / Omnova Solutions, Inc. / RBC Global Asset Management (U.S.) - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3) OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) December 31, 2016 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whic

February 9, 2017 SC 13G/A

OMN / Omnova Solutions, Inc. / Wellington Management Group LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3 )* OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) December 30, 2016 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

February 9, 2017 SC 13G

OMN / Omnova Solutions, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* OMNOVA SOLUTIONS INC (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) December 31, 2016 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sch

February 3, 2017 DEF 14A

Omnova Solutions 2017 DEFINITIVE PROXY STATEMENT

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)

February 1, 2017 10-K

Omnova Solutions 10-K (Annual Report)

Document 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 year ended November 30, 2016 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identification No.) 25435 Harvard R

February 1, 2017 8-K

Omnova Solutions 8-K (Current Report/Significant Event)

Document 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 1, 2017 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number

February 1, 2017 EX-99

OMNOVA Solutions Continues Year-Over-Year Earnings Growth and Cash Generation in 2016 Fourth Quarter

Exhibit Exhibit 99 News Release Contact: Sandi Noah Paul DeSantis Communications Chet Fox (216) 682-7011 Investor Relations sandi.

February 1, 2017 EX-10.20

J.P.Morgan THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of November 30, 2016 OMNOVA SOLUTIONS INC., as the Borrower The Lenders Party Hereto JPMORGAN CHASE BANK, N.A., as Administrative Agent JPMORGAN CHASE BANK, N.A., as Sole Bookrunner and

Exhibit 10.20 EXECUTION VERSION J.P.Morgan THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of November 30, 2016 among OMNOVA SOLUTIONS INC., as the Borrower The Lenders Party Hereto and JPMORGAN CHASE BANK, N.A., as Administrative Agent JPMORGAN CHASE BANK, N.A., as Sole Bookrunner and Sole Lead Arranger TABLE OF CONTENTS PAGE ARTICLE I DEFINITIONS1 Section 1.01Defined Terms 1 Section 1.02Cla

February 1, 2017 EX-10.15

CHIEF EXECUTIVE OFFICER EMPLOYMENT AGREEMENT

Exhibit 10.15 CHIEF EXECUTIVE OFFICER EMPLOYMENT AGREEMENT This Chief Executive Officer Employment Agreement (the “Agreement”) is made and entered into effective as of December 1, 2016, by and between Anne P. Noonan (the “Executive”) and OMNOVA Solutions Inc., an Ohio corporation (the “Company”). 1.Duties and Obligations. 1.1 Position. The Executive shall serve as the President and Chief Executive

February 1, 2017 EX-10.12

RESTRICTED SHARE UNITS AGREEMENT OMNOVA SOLUTIONS INC.

Exhibit 10.12 [Executive] RESTRICTED SHARE UNITS AGREEMENT OMNOVA SOLUTIONS INC. [DATE] AGREEMENT, made in Beachwood, Ohio as of [DATE] between OMNOVA Solutions Inc., an Ohio corporation (“Company”), and the executive officer of the Company named above who is signing this agreement (“Executive”). WHEREAS, under the terms of the Third Amended and Restated 1999 Equity Performance and Incentive Plan

February 1, 2017 EX-10.14

SEPARATION AGREEMENT

Exhibit 10.14 FINAL - A SEPARATION AGREEMENT This Separation Agreement (this “Agreement”) dated November 6, 2016 is by and between OMNOVA Solutions Inc., an Ohio corporation (the “Company”) and Kevin M. McMullen, an individual (“you” or “your”). Whereas, the parties desire to provide for the terms of your resignation and separation of service from the Company and for certain other matters. Now, Th

February 1, 2017 EX-21.1

EX-21.1

Exhibit 21.1 List of Subsidiaries of OMNOVA Solutions Inc.(1) The following is a list of the subsidiaries of OMNOVA Solutions Inc., an Ohio corporation (the “Corporation”) as of November 30, 2016. Name of Corporation State of Incorporation or Jurisdiction OMNOVA Performance Chemicals (UK) Ltd. United Kingdom limited company OMNOVA Engineered Surfaces (Thailand) Co., Ltd Thailand limited company OM

February 1, 2017 EX-24.1

OMNOVA SOLUTIONS INC. POWER OF ATTORNEY

EXHIBIT 24 OMNOVA SOLUTIONS INC. POWER OF ATTORNEY Each of the undersigned, an officer, a director, or both of OMNOVA Solutions Inc., an Ohio corporation, hereby constitutes and appoints Paul F. DeSantis, James C. LeMay, Frank P. Esposito, and each of them, as his or her true and lawful attorney-in-fact with full power of substitution and resubstitution, to sign in his or her name, place, and stea

February 1, 2017 EX-12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratios)

Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratios) Year Ended November 30, 2016 2015 2014 2013 2012 Pre-tax income (loss) from continuing operations $ 9.9 $ (21.1 ) $ 11.7 $ 26.5 $ 36.9 Adjustment for (income) loss from equity investees — — — — — Pre-tax income (loss) from continuing operations before adjustment for minority interests in consolidate

January 26, 2017 8-K

Omnova Solutions FORM 8-K (Current Report/Significant Event)

Document 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 20, 2017 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number

December 7, 2016 8-K

Omnova Solutions FORM 8-K (Current Report/Significant Event)

Document 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 5, 2016 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number

December 2, 2016 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement

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 30, 2016 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS E

November 7, 2016 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

Document 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 6, 2016 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number

November 7, 2016 EX-99.1

OMNOVA Solutions Inc. Announces CEO Succession

Exhibit News Release Contact: Sandi Noah Paul DeSantis Communications Chet Fox (216) 682-7011 Investor Relations sandi.

October 6, 2016 EX-99.1

Why OMNOVA Solutions? A Look Forward Global Innovator of Performance-Enhancing Chemistries and Surfaces Kevin McMullen Chairman & CEO Investor Luncheon October 6, 2016 Exhibit 99.1 Cautionary Statements 2 Forward-Looking Statements Today’s presentati

exhibit991 Why OMNOVA Solutions? A Look Forward Global Innovator of Performance-Enhancing Chemistries and Surfaces Kevin McMullen Chairman & CEO Investor Luncheon October 6, 2016 Exhibit 99.

October 6, 2016 8-K

Omnova Solutions 8-K (Current Report/Significant Event)

Document 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 6, 2016 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number)

September 22, 2016 EX-99.1

COMPANY CONFIDENTIAL Why OMNOVA Solutions? A Look Forward 3rd Quarter 2016 Investor Presentation Global Innovator of Performance-Enhancing Chemistries and Surfaces Exhibit 99.1 COMPANY CONFIDENTIAL Cautionary Statements 2 Forward-Looking Statements T

alookforward3rdqtr92216 COMPANY CONFIDENTIAL Why OMNOVA Solutions? A Look Forward 3rd Quarter 2016 Investor Presentation Global Innovator of Performance-Enhancing Chemistries and Surfaces Exhibit 99.

September 22, 2016 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

Document 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 22, 2016 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Numb

September 22, 2016 10-Q

Omnova Solutions 10-Q (Quarterly Report)

Document Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended August 31, 2016 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identificatio

September 22, 2016 8-K

Omnova Solutions 8-K (Current Report/Significant Event)

Document 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 22, 2016 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Nu

September 22, 2016 EX-99.1

OMNOVA Solutions Continues Year-Over-Year Earnings Growth In 2016 Third Quarter, Led by Increased Volumes of Over 6% in Performance Chemicals' Specialty Businesses

Exhibit Exhibit 99.1 News Release Contact: Sandi Noah Paul DeSantis Communications Chet Fox (216) 682-7011 Investor Relations [email protected] (216) 682-7003 OMNOVA Solutions Continues Year-Over-Year Earnings Growth In 2016 Third Quarter, Led by Increased Volumes of Over 6% in Performance Chemicals' Specialty Businesses BEACHWOOD, OHIO, September 22, 2016 - Third Quarter 2016 Highlights ? Ear

September 22, 2016 EX-12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (In millions, except ratios)

Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (In millions, except ratios) Nine Months Ended August 31, Year Ended November 30, 2016 2015 2014 2013 2012 Pre-tax income (loss) income from continuing operations (a) $ 16.2 $ (21.1 ) $ 11.7 $ 26.5 $ 36.9 Adjustment for (income) loss from equity investees — — — — — Pre-tax income (loss) from continuing operations before adjustment for

September 22, 2016 EX-10.1

[Signature Page to Amendment]

EXHIBIT 10.1 EXECUTION VERSION AMENDMENT No. 3, dated as of August 26, 2016 (this “Amendment”), to the Amended and Restated Term Loan Credit Agreement, dated as of December 9, 2010 (as amended by Amendment No. 1, dated as of March 7, 2013, as further amended by Amendment No. 2, dated as of March 28, 2014, and as further amended, restated, amended and restated, extended, supplemented or otherwise m

September 22, 2016 EX-10.2

AMENDMENT NO. 5 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT

Exhibit 10.2 AMENDMENT NO. 5 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT This AMENDMENT NO. 5 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”) dated as of August 26, 2016 is by and among OMNOVA Solutions Inc. (the “Borrower”), the financial institutions party to this Amendment, as Lenders, and JPMorgan Chase Bank, N.A., as Agent for the Lenders. Unless otherwise specified her

August 29, 2016 EX-99

OMNOVA Solutions Reduces Financing Costs And Extends Maturity with Refinancing of its Long-Term Debt

Exhibit News Release Contact: Sandi Noah Paul DeSantis Communications Chet Fox (216) 682-7011 Investor Relations sandi.

August 29, 2016 8-K

Omnova Solutions 8-K (Current Report/Significant Event)

Document 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 26, 2016 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

July 11, 2016 EX-99.1

COMPANY CONFIDENTIAL Why OMNOVA Solutions? A Look Forward 2nd Quarter 2016 Investor Presentation Global Innovator of Performance-Enhancing Chemistries and Surfaces Exhibit 99.1 COMPANY CONFIDENTIAL Cautionary Statements 2 Forward-Looking Statements T

alookforward2ndqtr62916f COMPANY CONFIDENTIAL Why OMNOVA Solutions? A Look Forward 2nd Quarter 2016 Investor Presentation Global Innovator of Performance-Enhancing Chemistries and Surfaces Exhibit 99.

July 11, 2016 8-K

Omnova Solutions 8-K (Current Report/Significant Event)

Document 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 11, 2016 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (

June 30, 2016 S-8

Omnova Solutions S-8

Document As filed with the Securities and Exchange Commission on June 30, 2016 Registration No.

June 30, 2016 EX-24

POWER OF ATTORNEY

Exhibit EXHIBIT 24 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned officers and directors of OMNOVA Solutions Inc.

June 29, 2016 10-Q

Omnova Solutions 10-Q (Quarterly Report)

Document Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended May 31, 2016 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identification N

June 29, 2016 8-K

Omnova Solutions 8-K (Current Report/Significant Event)

Document 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 29, 2016 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number)

June 29, 2016 EX-99.1

OMNOVA Solutions Continues its Trend of Significant Earnings Growth as Second Quarter 2016 Earnings Per Share Expands to $0.16 per Diluted Share, Compared to $0.09 Per Diluted Share Last Year

Exhibit Exhibit 99.1 News Release Contact: Sandi Noah Paul DeSantis Communications Chet Fox (216) 682-7011 Investor Relations [email protected] (216) 682-7003 OMNOVA Solutions Continues its Trend of Significant Earnings Growth as Second Quarter 2016 Earnings Per Share Expands to $0.16 per Diluted Share, Compared to $0.09 Per Diluted Share Last Year BEACHWOOD, OHIO, June 29, 2016 - Second Quart

June 29, 2016 EX-12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (In millions, except ratios)

Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (In millions, except ratios) Six Months Ended May 31, Year Ended November 30, 2016 2015 2014 2013 2012 Pre-tax income (loss) income from continuing operations (a) $ 9.6 $ (21.1 ) $ 11.7 $ 26.5 $ 36.9 Adjustment for (income) loss from equity investees — — — — — Pre-tax income (loss) from continuing operations before adjustment for minor

June 29, 2016 EX-3.1

OMNOVA SOLUTIONS INC. Amended and Restated Articles of Incorporation As adopted and in effect on April 4, 2016

OMNOVA SOLUTIONS INC. Amended and Restated Articles of Incorporation As adopted and in effect on April 4, 2016 These Amended and Restated Articles of Incorporation amend and replace in all respects the Amended and Restated Articles of Incorporation of OMNOVA Solutions Inc. adopted on September 17, 1999, as amended December 4, 2014. ARTICLE I The name of the corporation is OMNOVA Solutions Inc. (th

June 29, 2016 EX-3.2

OMNOVA SOLUTIONS INC. Amended and Restated Code of Regulations As adopted and in effect on April 4, 2016

OMNOVA SOLUTIONS INC. Amended and Restated Code of Regulations As adopted and in effect on April 4, 2016 This Amended and Restated Code of Regulations amends and replaces in all respects the Amended and Restated Code of Regulations of OMNOVA Solutions Inc. (the “Corporation”) adopted on September 15, 1999. SHAREHOLDER MEETINGS 1.Time and Place of Meetings. All meetings of the shareholders for the

May 3, 2016 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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, 2016 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employe

May 3, 2016 EX-99.1

COMPANY CONFIDENTIAL Why OMNOVA Solutions? A Look Forward 1st Quarter 2016 Investor Presentation Global Innovator of Performance-Enhancing Chemistries and Surfaces Exhibit 99.1 COMPANY CONFIDENTIAL Cautionary Statements 2 Forward-Looking Statements T

alookforward5316003 COMPANY CONFIDENTIAL Why OMNOVA Solutions? A Look Forward 1st Quarter 2016 Investor Presentation Global Innovator of Performance-Enhancing Chemistries and Surfaces Exhibit 99.

April 6, 2016 10-Q

OMNOVA Solutions 10-Q (Quarterly Report)

10-Q Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended February 29, 2016 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identification

April 6, 2016 EX-99

OMNOVA Solutions Grows First Quarter 2016 Adjusted EPS to $0.04 Per Diluted Share, Up From a Loss of $0.01 Per Share Last Year

Exhibit Exhibit 99.1 News Release Contact: Sandi Noah Paul DeSantis Communications Chet Fox (216) 682-7011 Investor Relations [email protected] (216) 682-7003 OMNOVA Solutions Grows First Quarter 2016 Adjusted EPS to $0.04 Per Diluted Share, Up From a Loss of $0.01 Per Share Last Year BEACHWOOD, OHIO, April 6, 2016 - First Quarter 2016 Highlights ? For first quarter 2016, the Company reported

April 6, 2016 8-K

OMNOVA Solutions 8-K (Current Report/Significant Event)

8-K 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 6, 2016 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS E

April 6, 2016 EX-12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratios)

Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratios) Three Months Ended February 29, Year Ended November 30, 2016 2015 2014 2013 2012 Pre-tax (loss) income from continuing operations (a) $ (.8 ) $ (21.1 ) $ 11.7 $ 26.5 $ 36.9 Adjustment for (income) loss from equity investees — — — — — Pre-tax (loss) income from continuing operations before adjustment

March 21, 2016 8-K

OMNOVA Solutions 8-K ANNUAL MEETING OF SHAREHOLDERS (Current Report/Significant Event)

8-K 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, 2016 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS

March 4, 2016 DEFA14A

OMNOVA Solutions SUPPLEMENTAL PROXY MATERIAL

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 ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

February 11, 2016 SC 13G/A

OMN / Omnova Solutions, Inc. / Wellington Management Group LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2 )* OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) December 31, 2015 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

February 10, 2016 SC 13G/A

OMN / Omnova Solutions, Inc. / RBC Global Asset Management (U.S.) - SC 13G/A AMENDMENT NO. 2 Passive Investment

SC 13G/A Amendment No. 2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2) OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) December 31, 2015 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule

February 5, 2016 DEF 14A

Omnova Solutions OMNOVA SOLUTIONS 2016 PROXY STATEMENT

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 ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

January 26, 2016 EX-99.1

COMPANY CONFIDENTIAL Why OMNOVA Solutions? A Look Forward 2015 Year End Investor Presentation Global Innovator of Performance-Enhancing Chemistries and Surfaces COMPANY CONFIDENTIAL Cautionary Statements 2 Forward-Looking Statements This presentation

alookforwardto2018012616 COMPANY CONFIDENTIAL Why OMNOVA Solutions? A Look Forward 2015 Year End Investor Presentation Global Innovator of Performance-Enhancing Chemistries and Surfaces COMPANY CONFIDENTIAL Cautionary Statements 2 Forward-Looking Statements This presentation includes descriptions of OMNOVA's current business, operations, assets and other matters affecting the Company as well as "forward-looking statements" as defined by federal securities laws.

January 26, 2016 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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 26, 2016 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Em

January 25, 2016 EX-21.1

EX-21.1

Exhibit 21.1 List of Subsidiaries of OMNOVA Solutions Inc.(1) The following is a list of the subsidiaries of OMNOVA Solutions Inc., an Ohio corporation (the “Corporation”) as of November 30, 2015. Name of Corporation State of Incorporation or Jurisdiction OMNOVA Performance Chemicals (UK) Ltd. United Kingdom limited company OMNOVA Engineered Surfaces (Thailand) Co., Ltd Thailand limited company OM

January 25, 2016 EX-24

OMNOVA SOLUTIONS INC. POWER OF ATTORNEY

EXHIBIT 24 OMNOVA SOLUTIONS INC. POWER OF ATTORNEY Each of the undersigned, an officer, a director, or both of OMNOVA Solutions Inc., an Ohio corporation, hereby constitutes and appoints Paul F. DeSantis, James C. LeMay, Frank P. Esposito, and each of them, as his or her true and lawful attorney-in-fact with full power of substitution and resubstitution, to sign in his or her name, place, and stea

January 25, 2016 EX-12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratios)

Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratios) Year Ended November 30, 2015 2014 2013 2012 2011 Pre-tax (loss) income from continuing operations $ (15.4 ) $ 11.7 $ 26.5 $ 36.9 $ 30.1 Adjustment for (income) loss from equity investees — — — — — Pre-tax (loss) income from continuing operations before adjustment for minority interests in consolidat

January 25, 2016 10-K

OMN / Omnova Solutions, Inc. 10-K - Annual Report - 10-K

10-K 1 omn-20151130x10k.htm 10-K 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 year ended November 30, 2015 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identificat

January 25, 2016 EX-10.39

INDEMNIFICATION AGREEMENT

Exhibit 10.39 Execution Copy INDEMNIFICATION AGREEMENT This Indemnification Agreement, dated as of , 20 (this “Agreement”), is made by and between OMNOVA Solutions Inc., an Ohio corporation (the “Company”), and (“Indemnitee”). RECITALS A. The Ohio Revised Code (the “ORC”) provides that the business and affairs of a corporation are to be managed under the direction of its board of directors and off

January 22, 2016 PRE 14A

Omnova Solutions 2016 PRELIMINARY PROXY STATEMENT

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 ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

January 19, 2016 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 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, 2016 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IR

January 19, 2016 EX-99.1

OMNOVA Solutions Reports Adjusted EPS of $0.13 per Diluted Share in Fourth Quarter 2015, up 30% Year-Over-Year Full year adjusted EPS of $0.36 per diluted share, up 29% from last year’s $0.28 per diluted share

Exhibit Exhibit 99 News Release Contact: Sandi Noah Paul DeSantis Communications Chet Fox (216) 682-7011 Investor Relations sandi.

October 23, 2015 8-K

Regulation FD Disclosure

8-K 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 23, 2015 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IR

September 25, 2015 EX-99.1

Global Innovator of Performance Chemicals and Engineered Surfaces Creating Sustainable Long-Term Shareholder Value Investor Presentation 3rd Quarter 2015 Exhibit 99.1 Forward-Looking Statements • This presentation and the accompanying oral remarks in

omnovainvestorpres3q2015 Global Innovator of Performance Chemicals and Engineered Surfaces Creating Sustainable Long-Term Shareholder Value Investor Presentation 3rd Quarter 2015 Exhibit 99.

September 25, 2015 8-K

Omnova Solutions 8-K (Current Report/Significant Event)

8-K 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 25, 2015 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (

September 24, 2015 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 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 24, 2015 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number)

September 24, 2015 EX-99.1

OMNOVA Solutions Reports EPS of $0.01 per Diluted Share in Third Quarter 2015, Expands Adjusted EPS by More Than 160% to $0.13 per Diluted Share, and Reaffirms Full-Year Guidance of Significant Growth in Adjusted Diluted Earnings Per Share

Exhibit Exhibit 99.1 News Release Contact: Sandi Noah Paul DeSantis Communications Chet Fox (216) 682-7011 Investor Relations [email protected] (216) 682-7003 OMNOVA Solutions Reports EPS of $0.01 per Diluted Share in Third Quarter 2015, Expands Adjusted EPS by More Than 160% to $0.13 per Diluted Share, and Reaffirms Full-Year Guidance of Significant Growth in Adjusted Diluted Earnings Per Sha

September 24, 2015 10-Q

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended August 31, 2015 Commission File Number 1-15147 OMNOVA Solutions Inc. (Ex

Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended August 31, 2015 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identification No.) 25

September 24, 2015 EX-12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratios)

Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratios) Nine Months Ended August 31, Year Ended November 30, 2015 2014 2013 2012 2011 Pre-tax (loss) income from continuing operations (a) $ (.9 ) $ 12.1 $ 26.5 $ 36.9 $ 30.1 Adjustment for (income) loss from equity investees — — — — — Pre-tax income from continuing operations before adjustment for minority

August 11, 2015 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

81115Investor 8K 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 11, 2015 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File

August 11, 2015 EX-99.1

Global Innovator of Performance Chemicals and Engineered Surfaces Creating Sustainable Long-Term Value Shareholder Value August 12, 2015 Jefferies 11th Annual Global Industrials Conference Exhibit 99.1 Forward-Looking Statements • This presentation a

omnovajefferiesaug201508 Global Innovator of Performance Chemicals and Engineered Surfaces Creating Sustainable Long-Term Value Shareholder Value August 12, 2015 Jefferies 11th Annual Global Industrials Conference Exhibit 99.

June 30, 2015 EX-12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratios)

Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratios) Six Months Ended May 31, Year Ended November 30, 2015 2014 2013 2012 2011 Pre-tax (loss) income from continuing operations (a) $ (.8 ) $ 12.1 $ 26.5 $ 36.9 $ 30.1 Adjustment for (income) loss from equity investees ? ? ? ? ? Pre-tax income from continuing operations before adjustment for minority int

June 30, 2015 10-Q

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended May 31, 2015 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact

Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended May 31, 2015 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identification No.) 25435

June 30, 2015 EX-99.1

OMNOVA Solutions Expands Operating Margins in Second Quarter 2015, Grows EPS By More Than 20% Versus 2Q 2014, and Reaffirms Full-Year Guidance of Significant Growth in Adjusted Diluted Earnings Per Share

Q2 2015 Press Release Exhibit 99.1 News Release Contact: Sandi Noah Paul DeSantis Communications Chet Fox (216) 682-7011 Investor Relations [email protected] (216) 682-7003 OMNOVA Solutions Expands Operating Margins in Second Quarter 2015, Grows EPS By More Than 20% Versus 2Q 2014, and Reaffirms Full-Year Guidance of Significant Growth in Adjusted Diluted Earnings Per Share BEACHWOOD, OHIO, Ju

June 30, 2015 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8k Form 05.31.2015 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 30, 2015 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 001-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission Fi

June 11, 2015 8-K

Omnova Solutions 8-K (Current Report/Significant Event)

OMN June 12 8-K 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 8, 2015 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Num

June 11, 2015 EX-99.1

OMNOVA Solutions Announces Reduction in Annual Operating Costs of $14-17M Through Manufacturing Realignment and SG&A Restructuring Actions

OMN June 11 15 Press Release EXHIBIT 99.1 News Release Contact: Sandi Noah Paul DeSantis Communications Chet Fox (216) 682-7011 Investor Relations (216) 682-7003 OMNOVA Solutions Announces Reduction in Annual Operating Costs of $14-17M Through Manufacturing Realignment and SG&A Restructuring Actions BEACHWOOD, OHIO, June 11, 2015 - ? Extensive manufacturing footprint redesign includes closure of s

April 30, 2015 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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, 2015 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Empl

April 30, 2015 EX-99.1

Global Innovator of Performance Chemicals and Engineered Surfaces Creating Sustainable Long-Term Value Kevin M. McMullen Chairman & CEO April 30, 2015 Investor Presentation Exhibit 99.1 Forward-Looking Statements • This presentation and the accompany

omnovainvestorpresapr302 Global Innovator of Performance Chemicals and Engineered Surfaces Creating Sustainable Long-Term Value Kevin M.

April 8, 2015 EX-12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratios)

Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratios) Three Months Ended February 28, Year Ended November 30, 2015 (a) 2014 2013 2012 2011 Pre-tax income from continuing operations $ (3.2 ) $ 12.1 $ 26.5 $ 36.9 $ 30.1 Adjustment for (income) loss from equity investees ? ? ? ? ? Pre-tax income from continuing operations before adjustment for minority in

April 8, 2015 10-Q

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended February 28, 2015 Commission File Number 1-15147 OMNOVA Solutions Inc. (

Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarter Ended February 28, 2015 Commission File Number 1-15147 OMNOVA Solutions Inc. (Exact name of registrant as specified in its charter) Ohio 34-1897652 (State of Incorporation) (I.R.S. Employer Identification No.)

April 8, 2015 EX-99.1

OMNOVA SOLUTIONS REPORTS FIRST QUARTER 2015 RESULTS AND REAFFIRMS FULL-YEAR 2015 GUIDANCE OF SIGNIFICANT GROWTH IN ADJUSTED DILUTED EARNINGS PER SHARE

Press Release Q1 2015 earnings results Exhibit 99 News Release Contact: Sandi Noah Paul DeSantis Communications Chet Fox (216) 682-7011 Investor Relations (216) 682-7003 OMNOVA SOLUTIONS REPORTS FIRST QUARTER 2015 RESULTS AND REAFFIRMS FULL-YEAR 2015 GUIDANCE OF SIGNIFICANT GROWTH IN ADJUSTED DILUTED EARNINGS PER SHARE BEACHWOOD, OHIO, April 8, 2015 - First Quarter 2015 Highlights ? In the first quarter - seasonally its weakest - the Company reported a net loss of $3.

April 8, 2015 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8k Form 04.08.2015 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 8, 2015 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File

March 20, 2015 8-K

Omnova Solutions 8-K (Current Report/Significant Event)

32015.8K 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 19, 2015 OMNOVA Solutions Inc. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number)

February 23, 2015 DEF 14A

OMN / Omnova Solutions, Inc. DEF 14A - - DEF 14A

DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

February 23, 2015 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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 23, 2015 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in its Charter) Ohio 1-15147 34-1897652 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS E

February 23, 2015 EX-99.1

Global Innovator of Performance Chemicals and Engineered Surfaces Creating Sustainable Long-Term Value Kevin M. McMullen Chairman & CEO February 23, 2015 J.P. Morgan Global High Yield & Leveraged Finance Conference Forward-Looking Statements • This p

jpmfeb232015 Global Innovator of Performance Chemicals and Engineered Surfaces Creating Sustainable Long-Term Value Kevin M.

February 20, 2015 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

Form 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 19, 2015 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in Charter) 001-15147 (Commission File Number) OHIO 34-1897652 (State or other jurisdiction of

February 20, 2015 DEFA14A

OMN / Omnova Solutions, Inc. DEFA14A - - FORM 8-K

Form 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 19, 2015 OMNOVA SOLUTIONS INC. (Exact Name of Registrant as Specified in Charter) 001-15147 (Commission File Number) OHIO 34-1897652 (State or other jurisdiction of

February 20, 2015 EX-10.1

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EX-10.1 EXHIBIT 10.1 EXECUTION VERSION AGREEMENT This Agreement (“Agreement”), dated February 19, 2015 (“Effective Date”), is by and among OMNOVA Solutions Inc. (“Company”), Barington Companies Equity Partners, L.P. and the entities and natural persons listed on Exhibit A (collectively, “Barington” and each a “Barington Member”). The Company and each Barington Member is a “Party” to this Agreement

February 20, 2015 EX-99.1

OMNOVA SOLUTIONS AND BARINGTON GROUP REACH AGREEMENT

EX-99.1 Exhibit 99.1 News Release OMNOVA SOLUTIONS AND BARINGTON GROUP REACH AGREEMENT BEACHWOOD, OHIO and NEW YORK, NEW YORK – February 20, 2015 – OMNOVA Solutions Inc. (NYSE: OMN, the “Company”) and an investor group led by Barington Capital Group, L.P. (“Barington”) today announced that they have reached an agreement in connection with the Company’s 2015 Annual Meeting of Shareholders and certa

February 20, 2015 EX-10.1

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EX-10.1 EXHIBIT 10.1 EXECUTION VERSION AGREEMENT This Agreement (“Agreement”), dated February 19, 2015 (“Effective Date”), is by and among OMNOVA Solutions Inc. (“Company”), Barington Companies Equity Partners, L.P. and the entities and natural persons listed on Exhibit A (collectively, “Barington” and each a “Barington Member”). The Company and each Barington Member is a “Party” to this Agreement

February 20, 2015 EX-99.1

OMNOVA SOLUTIONS AND BARINGTON GROUP REACH AGREEMENT

EX-99.1 Exhibit 99.1 News Release OMNOVA SOLUTIONS AND BARINGTON GROUP REACH AGREEMENT BEACHWOOD, OHIO and NEW YORK, NEW YORK – February 20, 2015 – OMNOVA Solutions Inc. (NYSE: OMN, the “Company”) and an investor group led by Barington Capital Group, L.P. (“Barington”) today announced that they have reached an agreement in connection with the Company’s 2015 Annual Meeting of Shareholders and certa

February 13, 2015 PRE 14A

OMN / Omnova Solutions, Inc. PRE 14A - - PRE 14A

PRE 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

February 12, 2015 SC 13G/A

OMN / Omnova Solutions, Inc. / Wellington Management Group LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* OMNOVA Solutions Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) December 31, 2014 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

February 9, 2015 PRRN14A

OMN / Omnova Solutions, Inc. PRRN14A - -

PRENA14A SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION (Amendment No.

February 4, 2015 SC 13G/A

OMN / Omnova Solutions, Inc. / RBC Global Asset Management (U.S.) - SCHEDULE 13G AMENDMENT NO. 1 Passive Investment

Schedule 13G Amendment No. 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1) OMNOVA Solutions Inc (Name of Issuer) Common Stock (Title of Class of Securities) 682129101 (CUSIP Number) December 31, 2014 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the ru

January 27, 2015 PREN14A

OMN / Omnova Solutions, Inc. PREN14A - -

PREN14A SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the registrant [ ] Filed by a party other than the registrant [X] Check the appropriate box: [X] Preliminary Proxy Statement [ ] Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) [ ] Definitive Proxy Statement [ ] Definitive Additional Materials [ ] Soliciting Material Under Rule 14a-12 OMNOVA SOLUTIONS INC.

January 23, 2015 EX-12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratios)

Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratios) Year Ended November 30, 2014 2013 2012 2011 2010 Pre-tax income (loss) from continuing operations $ 12.1 $ 26.5 $ 36.9 $ 30.1 $ 33.3 Adjustment for (income) loss from equity investees — — — — — Pre-tax income (loss) from continuing operations before adjustment for minority interests in consolidated

January 23, 2015 EX-10.35

EX-10.35

January 23, 2015 EX-24.1

POWER OF ATTORNEY

POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned Director of OMNOVA Solutions Inc.

January 23, 2015 EX-10.38

EX-10.38

January 23, 2015 EX-10.36

EX-10.36

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