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SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K/A

(Amendment No. 2)

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended November 30, 2005

Commission File Number 1-15147

OMNOVA Solutions Inc.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code (330) 869-4200

Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.    Yes  x    No  ¨

Indicate by check mark whether the registrant is an accelerated filer (as defined in Exchange Act Rule 12b-2).    Yes  x    No  ¨

Indicate by check mark whether the registrant is shell company (as defined in Rule 12-b of the Exchange Act).    Yes  ¨    No  x

The aggregate market value of the voting stock held by nonaffiliates of the registrant was $165,500,992, based on the closing price per share of $4.06 on May 31, 2005, the last business day of the registrant’s most recently completed second fiscal quarter.

As of January 13, 2006, there were 41,261,381 outstanding shares of the Company’s Common Stock, 10¢ par value.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the 2006 Proxy Statement of OMNOVA Solutions Inc. are incorporated into Part III of this Report.

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Explanatory Note

On January 30, 2006, OMNOVA Solutions Inc. filed with the Securities and Exchange Commission its Annual Report on Form 10-K for the year ended November 30, 2005 (the “Annual Report”).

This Amendment No. 2 to Form 10-K (“Amendment No. 2”) of OMNOVA Solutions Inc. is being filed solely to amend Item 15 to include the separate financial statements of CG – Decorative Products (Shanghai) Co., Ltd., (the “Unconsolidated Subsidiary”) as required under Rule 3-09 of Regulation S-X. The audit of the financial statements of the Unconsolidated Subsidiary, whose fiscal year ends December 31, was not completed at the time the Company filed its Annual Report on Form 10-K. The audited financial statements are now included under Item 15 (a)(2) of this Amendment No. 2.

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Item 15. Exhibits and Financial Statement Schedules

(a)(1) Consolidated Financial Statements:

The following consolidated financial statements of OMNOVA Solutions Inc. are included in Item 8 of the Company’s Annual Report on Form 10-K filed on January 30, 2006:

Consolidated Statements of Operations for the years ended November 30, 2005, 2004 and 2003

Consolidated Balance Sheets at November 30, 2005 and 2004

Consolidated Statements of Shareholders’ Equity (Deficit) for the years ended November 30, 2005, 2004 and 2003

Consolidated Statements of Cash Flows for the years ended November 30, 2005, 2004 and 2003

Notes to the Consolidated Financial Statements

(a)(2) Consolidated Financial Statement Schedules:

The following financial statements of CG – Decorative Products (Shanghai) Co., Ltd., an unconsolidated subsidiary of the Company, are included herein:

Statements of Operations for the years ended December 31, 2005, 2004 and 2003

Balance Sheets at December 31, 2005 and 2004

Statement of Shareholders’ Equity for the years ended December 31, 2005, 2004 and 2003

Statement of Cash Flows for the years ended December 31, 2005, 2004 and 2003

Notes to the Financial Statements

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CG-OMNOVA DECORATIVE PRODUCTS (SHANGHAI) CO., LTD.

(Incorporated in the People’s Republic of China with Limited Liability)

Financial Statements

For the year ended December 31, 2005

(With Unaudited Comparative Figures for the Years Ended 2004 and 2003)

With Report of Independent Registered Public Accounting Firm

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CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

Financial Statements

Years Ended December 31, 2005, 2004 (Unaudited) and 2003 (Unaudited)

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Board of Directors and Shareholders of

  CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

We have audited the accompanying balance sheet of CG-OMNOVA Decorative Products (Shanghai) Co., Ltd. (the “Company”) as of December 31, 2005, and the related statements of income, changes in shareholders’ equity, and cash flows for the year then ended. These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these financial statements based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. We were not engaged to perform an audit of the Company’s internal controls over financial reporting. Our audit included consideration of internal controls over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audit provides a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of CG-OMNOVA Decorative Products (Shanghai) Co., Ltd. as at December 31, 2005, and the results of its operations and its cash flows for the year then ended in conformity with U.S. generally accepted accounting principles.

This branch is authorised by Ernst & Young Hua Ming Head Office for execution of its business on its behalf.

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CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

Balance Sheets

(In USD Thousands)

The accompanying notes are an integral part of these financial statements

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CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

Statements of Income

(In USD Thousands)

The accompanying notes are an integral part of these financial statements

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CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

Statements of Changes in Shareholders’ Equity

For the Year Ended December 31, 2005

(With Unaudited Comparative Figures for Years Ended December 31, 2004 and 2003)

(In USD Thousands)

The accompanying notes are an integral part of these financial statements

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CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

Statements of Cash Flows

(In USD Thousands)

The accompanying notes are an integral part of these financial statements

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CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

Notes to the Financial Statements

Year Ended December 31, 2005

(Including Unaudited Notes for Years Ended December 31, 2004 and 2003)

(USD Thousands)

CG-OMNOVA Decorative Products (Shanghai) Co., Ltd. (the “Company”) was incorporated on December 29, 1999 as a wholly foreign-owned enterprise under the Law of the People’s Republic of China (the “PRC”) on Enterprises Operated Exclusively with Foreign Capital. The tenure of the Company is 50 years. The Company is a subsidiary of Decorative Products (Singapore) Pte. Ltd., a company registered in Singapore. The shareholders of Decorative Products (Singapore) Pte. Ltd. are OMNOVA Solutions Inc. and CPPC Public Company Limited, each with equity interests of 50%, respectively. Dividends, profits and liquidation rights are shared by the shareholders based on their respective ownership percentage.

The financial statements are prepared in accordance with generally accepted accounting principles in the United States and are prepared in Chinese Renminbi (“RMB”), which is the Company’s functional currency, and translated into U.S. Dollars for presentation. All amounts presented in this report are in U.S. Dollars (in thousands), unless otherwise specified.

The balance sheet as at December 31, 2004, the statement of income, changes in shareholders’ equity and cash flows for the years ended December 31, 2004 and 2003, together with the accompanying notes, were unaudited and are presented solely for comparative purposes.

The preparation of the financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.

Assets and liabilities are translated into U.S. dollars at exchange rates in effect at the balance sheet date, while revenue and expenses are translated at the weighted average exchange rates for the year. The resulting translation gains and losses on assets and liabilities are recorded in accumulated other comprehensive income (loss).

Non-monetary assets and liabilities denominated in foreign currencies are translated into RMB at the foreign exchange rates at the date of measurement.

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CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

Notes to the Financial Statements

Year Ended December 31, 2005

(Including Unaudited Notes for Years Ended December 31, 2004 and 2003)

(USD Thousands)

Foreign exchange gains (losses) are included in other operating expenses and were ($36), ($12) (unaudited) and ($3) (unaudited) in 2005, 2004, and 2003, respectively.

Property, plant and equipment and land use rights are stated at cost less accumulated depreciation and impairment losses. The cost includes the cost of materials, direct labor, the initial assessment of the costs of dismantling (if relevant) and an appropriate proportion of production overheads.

Construction-in-progress (“CIP”) includes all costs incurred during the preparation period from commencement of construction and until the asset is ready for its intended use. These costs include direct materials, direct labor, equipment for installation, construction and installation charges. CIP is transferred to fixed assets when the asset is ready for its intended use.

Subsequent expenditure

Refurbishment costs are capitalized in property, plant and equipment, whereas ordinary maintenance and repair costs are recognized as an expense in the period in which they are incurred.

Depreciation

Depreciation is calculated principally using the straight-line method over the estimated useful lives as follows:

Amortization

Amortization charges are primarily related to land use right. Amortization is charged to the statement of income on a straight-line basis over the term of the land use right of 8 years from the date the Company attained the right to use the land. The amortization of land use right was approximately $238 in each of 2005, 2004 (unaudited) and 2003 (unaudited).

Disposal

Gains or losses arising from the retirement or disposal of property, plant and equipment are determined as the difference between the net disposal proceeds and the carrying amount of the asset and are recognized in the statement of income on the date of retirement or disposal.

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CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

Notes to the Financial Statements

Year Ended December 31, 2005

(Including Unaudited Notes for Years Ended December 31, 2004 and 2003)

(USD Thousands)

Asset retirement obligations

The fair value of asset retirement obligations are recorded when the Company has an unconditional legal obligation to perform an asset retirement activity and the amount of the obligation can be reasonably estimated. In assessing asset retirement obligations, the Company reviews the expected settlement dates or a range of estimated settlement dates, the expected method of settlement of the obligation and other factors pertinent to the obligations.

Inventories are stated at the lower of cost or market value. Cost is calculated using the determined on a first-in first-out basis. Inventories are reviewed for obsolescence, deterioration, damage and slow-moving and reserves are provided as necessary.

Trade and other receivables (including balances with related parties as disclosed in note 12) are stated at cost less allowances for doubtful receivables. General provisions are made based on the aging of receivables balances, determined at certain provision rates.

Cash and cash equivalents comprise all highly liquid instruments with original maturities of 90 days or less.

The carrying amounts of the Company’s assets, other than inventories, are reviewed at each balance sheet date or when events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. If the expected future undiscounted cash flows are less than the carrying amount of the asset, an impairment loss is recognized at that time to reduce the asset to the lower of its fair value or its net book value. The impairment loss is charged to the statement of income.

Interest-bearing short-term loans and borrowings (including balances with related party as disclosed in note 12) as of December 31, 2004 (unaudited) were recognized at cost.

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CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

Notes to the Financial Statements

Year Ended December 31, 2005

(Including Unaudited Notes for Years Ended December 31, 2004 and 2003)

(USD Thousands)

Defined contribution plan

The full-time employees of the Company are covered by various government-managed defined contribution retirement benefit schemes under which the employees are entitled to a monthly pension based on certain formulae. These government agencies are responsible for the retirement benefits to these retired employees. The Company contributes on a monthly basis to these retirement benefit schemes. Under these schemes, the Company has no legal or constructive obligation for retirement benefits beyond the contributions made. Contributions to these schemes, which are expensed as incurred were $177, $133 (unaudited) and $102 (unaudited) for 2005, 2004 and 2003, respectively.

Income tax

Current tax is the expected tax payable on the taxable income for the year, using tax rates enacted or substantially enacted at the balance sheet date, and any adjustment to tax payable in respect of the previous years.

Deferred income tax

Deferred taxes are provided for temporary differences between the carrying amount of assets and liabilities for financial reporting and income tax purposes. The amount of deferred tax provided is based on the expected manner of realization or settlement of the carrying amount of assets and liabilities, using tax rates enacted or substantively enacted at the balance sheet date. A deferred tax asset is recognized to the extent that it is probable that future taxable profit will be available against which the temporary differences can be utilized.

Sale of goods

Revenue from product sales is recognized when the significant risks and rewards of ownership have been transferred to the buyer. Revenue excludes value added taxes or other sales taxes and is arrived at after deduction of trade discounts.

There is one customer that represented approximately 19% of the Company’s net sales in 2005.

Interest income

Interest income is recognized in the statement of income as it accrues.

Interest expense and similar charges are expensed in the statement of income in the period in which it is incurred and is reported net of interest income.

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CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

Notes to the Financial Statements

Year Ended December 31, 2005

(Including Unaudited Notes for Years Ended December 31, 2004 and 2003)

(USD Thousands)

Research and development costs, which were $178 in 2005, $73 (unaudited) in 2004 and $89 (unaudited) in 2003, are expensed in the statement of income as incurred.

In November 2004, the Financial Accounting Standards Board (“FASB”) issued Statement of Financial Accounting Standards (“SFAS”) No. 151, “Inventory Costs, an amendment of ARB 43, Chapter 4”. SFAS No. 151 requires certain inventory costs to be recognized as expenses in the period it incurs. This standard also provides guidance for the allocation of fixed production overhead costs. This standard is effective for inventory costs incurred during fiscal years beginning on or after June 15, 2005. The Company will adopt this standard in year 2006. The Company anticipates that the adoption of this standard will not have a material impact on the financial statements of the Company.

In May 2005, the FASB issued SFAS No. 154 “Accounting Changes and Error Corrections”. SFAS No. 154 replaces Accounting Principles Board Opinion (“APB”) No. 20 “Accounting Changes” and SFAS No. 3 “Reporting Accounting Changes in Interim Financial Statements”. SFAS No. 154 requires companies to apply a retrospective application for reporting a change in accounting principle and differentiates a retrospective application from a restatement. This statement also carries forward the guidance from APB No. 20 regarding the correction of an error and changes in accounting estimates. The Company will adopt this standard in year 2006. The Company does not anticipate that the adoption of this Statement will have any impact on the financial statements of the Company.

In March 2005, the FASB issued interpretation No. 47, “Accounting for Conditional Asset Retirement Obligations”, which clarifies that an entity is required to recognize a liability for the fair value of a conditional asset retirement obligation if the fair value can be reasonably estimated even though uncertainty exists about the timing and/or method of settlement. The Company will adopt interpretation No. 47 prior to the end of year 2006. The Company does not anticipate any material impact on the financial statements of the Company from the adoption of the interpretation.

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CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

Notes to the Financial Statements

Year Ended December 31, 2005

(Including Unaudited Notes for Years Ended December 31, 2004 and 2003)

(USD Thousands)

Depreciation expense was $1,029, $942 (unaudited) and $892 (unaudited) in 2005, 2004 and 2003, respectively.

The Company’s buildings with a net book value of approximately $2,600 in 2005 and approximately $2,700 (unaudited) in 2004 were pledged for credit facilities as described in note 6.

The Company’s trade receivables are generally unsecured and are not backed by collateral from its customers. The provision for doubtful receivables was $59 and $49 (unaudited) at December 31, 2005 and 2004, respectively. The doubtful debts expense totaled $13 in 2005, $40 (unaudited) in 2004 and $7 (unaudited) in 2003.

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CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

Notes to the Financial Statements

Year Ended December 31, 2005

(Including Unaudited Notes for Years Ended December 31, 2004 and 2003)

(USD Thousands)

The Company is a party to several credit facility agreements for short-term borrowings. The credit facility denominated in U.S. Dollar which totaled $4,000 obtained from a related party (note 12) was unsecured, comprised trust receipts of $800; letters of credit of $2,000 and a short term loan of $1,200. As of December 31, 2005, the Company’s unused letters of credit were approximately $700.

The Company’s credit facility line denominated in RMB which totaled RMB10 million (or approximately $1,200) as of December 31, 2005 is secured by the Company’s buildings and land use right with an aggregate net book value of $3,381 as of December 31, 2005 and $3,600 (unaudited) as of December 31, 2004. As of December 31, 2005, the Company had not utilized the above credit facility.

Interest expense was $86, $114 (unaudited) and $126 (unaudited) for 2005, 2004 and 2003, respectively.

Each of the Company’s registered and paid-up capital are $10,000 and $10,000 (unaudited) as of December 31, 2005 and 2004, respectively.

According to the relevant laws and regulations for wholly-foreign-owned enterprises and the Company’s articles of association, profit of the Company, as determined in accordance with the applicable accounting rules and regulations in the PRC, are available for distribution in the form of cash dividends to the investors after the Company has (1) satisfied all tax liabilities; (2) provided for losses in the previous years; and (3) made appropriations to the statutory reserve funds, including reserve fund and staff bonus and welfare fund. The Company is required to appropriate not less than 10% of its annual profit after income tax to the reserve fund until the reserve balance reaches 50% of its registered capital. However, appropriation to the staff bonus and welfare fund is determined at the discretion of the board of directors of the Company.

The statutory reserve is not free for distribution as dividends but it can be used to offset losses or be capitalized. The staff bonus and welfare fund can be used for reward and collective welfare for employees.

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CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

Notes to the Financial Statements

Year Ended December 31, 2005

(Including Unaudited Notes for Years Ended December 31, 2004 and 2003)

(USD Thousands)

In accordance with the relevant laws and regulations, profits available for distribution by the Company are based on the PRC statutory financial statements. For the year ended December 31, 2004, the Company appropriated after tax profit amounting to $117 (unaudited) to the reserve fund. For the year ended December 31, 2005, the Company’s appropriation after tax profit of $284 to the reserve fund is subject to the approval of the Company’s audited statutory financial statements.

In accordance with Income Tax Law of the PRC Concerning Foreign Investment Enterprises and Foreign Enterprises and various local income tax laws (the “Income Tax Law”), joint venture companies are subject to the statutory income tax of 33% (comprising 30% state income tax plus 3% local income tax) unless the enterprise is qualified as a “Foreign Funded Enterprise with Advanced Technology” for which more favorable effective corporate income tax rates apply.

The Company is located in Shanghai Minhang Economic Technological Development Zone and therefore, preferential corporate income tax rate at 15% applies. In addition, the Company is a qualified “Foreign Funded Enterprise with Advanced Technology” and under relevant tax law, the Company is exempted from corporate income tax and local income taxes for its first two profit-making years, which were 2000 and 2001 (after deducting losses incurred in the previous years), and is entitled to a 50% tax exemption for the succeeding three years of 7.5% (“Tax Exemption”). The Company is entitled to extend the period of a reduced corporate income tax rate for another three years on expiry of the Tax Exemption, provided that the minimum corporate income tax rate is not lower than 10%. Consequently, the Company is subject to a corporate income tax rate of 10% for 2005.

A reconciliation of the Company’s effective tax rate is as follows:

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CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

Notes to the Financial Statements

Year Ended December 31, 2005

(Including Unaudited Notes for Years Ended December 31, 2004 and 2003)

(USD Thousands)

Deferred tax assets are mainly attributable to provisions for sales returns, doubtful receivables and inventories mark-down for financial reporting purpose in excess of those deductible under tax regulations. As of December 31, 2005 and 2004, the Company had provisions for sales returns of $47 and $78 (unaudited), doubtful receivables of $59 and $49 (unaudited), and inventories of $237 and $142 (unaudited), respectively.

From time to time, the Company is subject to various claims, lawsuits and proceedings related to product liability, product warranty, contract, employment, environmental and other matters arising out of the Company’s business. The ultimate resolution of any litigation is inherently unpredictable. As a result, the Company’s estimates of liability, if any, are subject to change and actual results may materially differ from the Company’s estimates. As of December 31, 2005, the Company is not aware of any pending claims, lawsuits or proceedings that will materially affect the consolidated financial position of the Company.

As of December 31, 2005, the Company had unused letters of credit amounting to approximately $700.

For the purposes of these financial statements, parties are considered to be related to the Company if the Company has the ability, directly or indirectly, to control the party or exercise significant influence over the party in making financial and operating decisions, or vice versa, or where the Company and the party are subject to common control or common significant influence. Related parties may be individuals or other entities.

During the years, other than disclosed elsewhere in the financial statements, significant related party transactions carried out in the normal course of business based on terms agreed between the parties are set out below.

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CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

Notes to the Financial Statements

Year Ended December 31, 2005

(Including Unaudited Notes for Years Ended December 31, 2004 and 2003)

(USD Thousands)

As of December 31, 2005 and 2004, the outstanding balances with related parties, which are included in the balance sheets, were as follows:

Apart from cash at bank and short-term loan from financial institution, the outstanding balances with related parties at December 31, 2005 are unsecured, interest-free and have no fixed terms of repayment.

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CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

Notes to the Financial Statements

Year Ended December 31, 2005

(Including Unaudited Notes for Years Ended December 31, 2004 and 2003)

(USD Thousands)

Significant revenues, purchases and expenses arising from transactions with related parties for each of the years ended December 31, 2005, 2004 and 2003 were as follows:

Revenues from sale and purchases of raw materials were conducted with reference to the prevailing market condition.

Market investigation and development fees were charged in accordance with the terms of the agreements whereby each of CPPC Public Company Limited and OMNOVA Solutions Inc. agreed to undertake a market research for a fixed fee per annum. Each of the agreements were entered into for a term of 5 years from January 2, 2005, which will continue the validness automatically after the valid period on condition that there is no dissidence between the Company and OMNOVA Solutions Inc. and CPPC Public Company Limited, respectively.

Financial risk management objectives and policies

The Company is exposed primarily to credit, interest rate and currency exchange rates risk which arises in the normal course of business. There are no written risk management policies and guidelines which set out its overall business strategies, its tolerance of risk and its general risk management philosophy.

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CG-OMNOVA Decorative Products (Shanghai) Co., Ltd.

Notes to the Financial Statements

Year Ended December 31, 2005

(Including Unaudited Notes for Years Ended December 31, 2004 and 2003)

(USD Thousands)

Credit risk

Credit risk is the potential financial loss resulting from the failure of a customer or counterparty to settle its financial and contractual obligations to the Company, as and when they fall due.

The Company has established credit limits for customers and monitors their balances.

At the balance sheet date, there were no significant concentrations of credit risk, with a single customer balance that represents 17% (2004: 11% Unaudited) of trade receivables. The maximum exposure to credit risk is represented by the carrying amount of each financial asset in the balance sheets.

Foreign currency risk

The Company incurs foreign currency risk on sales, purchases and borrowings denominated in other than RMB. The currencies giving rise to this risk are primarily the U.S. dollars and the Hong Kong dollars. The Company does not hedge these exposures by purchasing forward currency contracts at present.

Interest rate risk

The Company’s exposure to market risk for changes in interest rates relates primarily to the Company’s secured bank loans and credit facilities for letters of credit. The Company does not use derivative financial instruments to hedge its exposure.

The Company entered into a contract dated June 22, 2000 with Shanghai Minhang United Development Co., Ltd. for the right to use the parcel of land on which the Company’s buildings (including office, factory and warehouse) is erected thereon, and paid a fee of $1,953 for the lease term of 8 years. The fee was paid upon signing of the contract and is being amortized on a straight-line basis over the contract term, which is due to expire in 2008. The contract provides the Company with an option to renew for an additional 41 years until 2049. Any payments made under future renewals of this contract will be amortized over the extended lease period. The land use right was pledged for credit facilities as described in note 6.

According to the terms of the contract, the Company is required to dispose of all structures and attachments to the land prior to termination of the contract. The Company has not recorded any amount relating to this obligation as the Company has concluded that any obligation would not be significant at December 31, 2005.

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(a)(3) Exhibits

EXHIBIT INDEX

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The Company will supply copies of any of the foregoing exhibits to any shareholder upon receipt of a written request addressed to OMNOVA Solutions Inc., 175 Ghent Road, Fairlawn, Ohio 44333-3300, Attention: Secretary, and payment of $1 per page to help defray the costs of handling, copying and return postage.

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this Amendment No. 2 to this Annual Report on Form 10-K to be signed on its behalf by the undersigned, thereunto duly authorized.

Pursuant to the requirements of the Securities Exchange Act of 1934, this Amendment No. 2 to this Annual Report on Form 10-K has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

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EXHIBIT INDEX

OMNOVA Solutions Inc. Amendment No. 2 to Form 10-K

For the Year Ended November 30, 2005