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                                  UNITED STATES
                       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 quarterly period ended March 31, 2000
                         Commission File Number 0-22572


                                 OM GROUP, INC.
             (exact name of registrant as specified in its charter)



           Delaware                                             52-1736882
(state or other jurisdiction of                             (I.R.S., Employer
incorporation or organization)                            Identification Number)


                                   Tower City
                                50 Public Square
                               3500 Terminal Tower
                           Cleveland, Ohio 44113-2204
                    (Address of principal executive offices)
                                   (zip code)


                                 (216) 781-0083
              (Registrant's telephone number, including area code)



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 and 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 the number of shares outstanding of each of the issuer's classes of
common stock, as of March 31, 2000: Common Stock, $.01 Par Value - 23,876,042
shares.
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                                      INDEX

                                 OM GROUP, INC.




Part I. Financial Information

Item 1. Financial Statements (Unaudited)

        Condensed consolidated balance sheets -- March 31, 2000 and
        December 31, 1999

        Condensed statements of consolidated income -- Three months ended
        March 31, 2000 and 1999

        Condensed statements of consolidated cash flows -- Three months ended
        March 31, 2000 and 1999

        Notes to condensed consolidated financial statements -- March 31, 2000

Item 2. Management's Discussion and Analysis of Financial Condition and Results
        of Operations

Item 3. Quantitative and Qualitative Disclosures about Market Risk


Part II. Other Information

Item 1. Legal Proceedings - Not applicable

Item 2. Changes in Securities - Not applicable

Item 3. Defaults upon Senior Securities - Not applicable

Item 4. Submission of Matters to a Vote of Security Holders - Not applicable

Item 5. Other information - Not applicable

Item 6.  Exhibits and Reports on Form 8-K
         (10)   Material Contracts
         (15.1) Independent Accountants' Review Report
         (15.2) Letter re: Unaudited Interim Financial Information
         (27)   Financial Data Schedule



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                                 OM GROUP, INC.
                      CONDENSED CONSOLIDATED BALANCE SHEETS
                    (Thousands of dollars, except share data)
                                   (Unaudited)




                                                                                          March 31,          December 31,
ASSETS                                                                                       2000               1999
- ------                                                                                   -----------         ------------
                                                                                                       
CURRENT ASSETS
  Cash and cash equivalents                                                              $     5,461         $     9,433
  Accounts receivable                                                                        101,873             100,492
  Inventories                                                                                333,086             332,810
  Other current assets                                                                        66,184              54,289
                                                                                         -----------         -----------
      TOTAL CURRENT ASSETS                                                                   506,604             497,024

PROPERTY, PLANT AND EQUIPMENT
  Land                                                                                         6,103               6,099
  Buildings and improvements                                                                  94,075              93,819
  Machinery and equipment                                                                    336,087             317,388
  Furniture and fixtures                                                                      14,561              14,419
                                                                                         -----------         -----------
                                                                                             450,826             431,725
  Less accumulated depreciation                                                              118,010             112,910
                                                                                         -----------         -----------
                                                                                             332,816             318,815
OTHER ASSETS
  Goodwill and other intangible assets                                                       182,544             183,974
  Other assets                                                                                20,027              18,108
                                                                                         -----------         -----------
TOTAL ASSETS                                                                             $ 1,041,991         $ 1,017,921
                                                                                         ===========         ===========


LIABILITIES AND STOCKHOLDERS' EQUITY
- ------------------------------------

CURRENT LIABILITIES
  Short-term debt and current portion of long-term debt                                  $    11,000         $        25
  Accounts payable                                                                            66,144              77,037
  Other accrued expenses                                                                      44,633              47,794
                                                                                         -----------         -----------
      TOTAL CURRENT LIABILITIES                                                              121,777             124,856

LONG TERM LIABILITIES
  Long-term debt                                                                             384,938             384,888
  Deferred income taxes                                                                       33,345              31,434
  Other long-term liabilities                                                                 37,780              27,515

STOCKHOLDERS' EQUITY
  Preferred stock, $0.01 par value:
    Authorized 2,000,000 shares; no shares issued or outstanding
  Common stock, $0.01 par value:
    Authorized 60,000,000 shares; issued 23,959,346 shares                                       240                 240
  Capital in excess of par value                                                             258,855             258,815
  Retained earnings                                                                          210,171             198,047
  Treasury stock (83,304 shares in 2000
    and 165,161 shares in 1999, at cost)                                                      (2,870)             (5,537)
  Accumulated other comprehensive loss                                                        (1,773)             (1,837)
  Unearned compensation                                                                         (472)               (500)
                                                                                         -----------         -----------
      TOTAL STOCKHOLDERS' EQUITY                                                             464,151             449,228
                                                                                         -----------         -----------
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY                                               $ 1,041,991         $ 1,017,921
                                                                                         ===========         ===========



See notes to condensed Consolidated Financial Statements
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                                 OM GROUP, INC.
                   CONDENSED STATEMENTS OF CONSOLIDATED INCOME
                  (Thousands of dollars, except per share data)
                                   (Unaudited)



                                                          Three Months Ended
                                                                March 31,
                                                      -------------------------
                                                         2000           1999
                                                      -------------------------


Net sales                                             $ 148,285       $ 114,113
Cost of products sold                                   106,283          77,004
                                                      -------------------------
                                                         42,002          37,109
Selling, general and administrative expenses             14,961          14,306
                                                      -------------------------
INCOME FROM OPERATIONS                                   27,041          22,803

OTHER INCOME (EXPENSE)
Interest expense                                         (5,452)         (4,450)
Interest income                                             105              15
Foreign exchange (loss) gain                                (72)            400
                                                      -------------------------
                                                         (5,419)         (4,035)
                                                      -------------------------
INCOME BEFORE INCOME TAXES                               21,622          18,768
Income taxes                                              6,472           5,795
                                                      -------------------------
NET INCOME                                            $  15,150       $  12,973
                                                      =========================
Net income per common share                           $    0.63       $    0.55
Net income per common share - assuming dilution       $    0.63       $    0.54
Dividends paid per common share                       $    0.11       $    0.10


See notes to condensed Consolidated Financial Statements
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                                 OM GROUP, INC.
                 CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS
                             (Thousands of dollars)
                                   (Unaudited)




                                                                                           Three Months Ended
                                                                                                March 31,
                                                                                    --------------------------------
                                                                                      2000                    1999
                                                                                    --------------------------------
                                                                                                      
OPERATING ACTIVITIES
  Net income                                                                        $ 15,150                $ 12,973
  Items not affecting cash:
    Depreciation and amortization                                                      7,525                   6,881
    Foreign exchange loss (gain)                                                          72                    (400)
    Deferred income taxes                                                              1,912                  (3,472)
  Changes in operating assets and liabilities                                        (29,899)                (43,927)
                                                                                    --------------------------------
    NET CASH USED IN OPERATING ACTIVITIES                                             (5,240)                (27,945)

INVESTING ACTIVITIES
  Expenditures for property, plant and equipment, net                                 (9,358)                (17,275)
  Acquisitions of businesses                                                                                  (2,650)
                                                                                    --------------------------------
    NET CASH USED IN INVESTING ACTIVITIES                                             (9,358)                (19,925)

FINANCING ACTIVITIES
  Dividend payments                                                                   (2,622)                 (2,375)
  Long-term borrowings                                                                    50                  56,221
  Short-term borrowings                                                               11,000
  Payments of long-term debt                                                             (25)
  Payments of short-term debt                                                                                 (2,000)
  Purchase of treasury stock                                                            (728)                 (1,864)
  Proceeds from exercise of stock options                                              2,962                     189
                                                                                    --------------------------------
    NET CASH PROVIDED BY FINANCING ACTIVITIES                                         10,637                  50,171

Effect of exchange rate changes on cash and cash equivalents                             (11)                   (227)
                                                                                    --------------------------------
(Decrease) increase in cash and cash equivalents                                      (3,972)                  2,074
Cash and cash equivalents at beginning of period                                       9,433                   7,750
                                                                                    --------------------------------
Cash and cash equivalents at end of period                                          $  5,461                $  9,824
                                                                                    ================================



See notes to condensed Consolidated Financial Statements
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Part I  Financial Information
Item 1  Financial Statements



                                 OM GROUP, INC.
        Notes to Condensed Consolidated Financial Statements (Unaudited)
                                 March 31, 2000
                (Thousands of dollars, except per share amounts)


Note A  Basis of Presentation
        ---------------------

        The accompanying unaudited condensed consolidated financial statements
        have been prepared in accordance with generally accepted accounting
        principles for interim financial information and with the instructions
        to Form 10-Q. Accordingly, they do not include all of the information
        and footnotes required by generally accepted accounting principles for
        complete financial statements. In the opinion of management, all
        adjustments (consisting of normal recurring accruals) considered
        necessary for a fair financial presentation have been included. Past
        operating results are not necessarily indicative of the results which
        may occur in future periods. For further information refer to the
        consolidated financial statements and notes thereto included in the
        Company's Annual Report on Form 10-K for the year ended December 31,
        1999.

        In June, 1998, SFAS No. 133 "Accounting for Derivative Instruments and
        Hedging Activities" was issued. SFAS No. 133 provides a comprehensive
        and consistent standard for the recognition and measurement of
        derivatives and hedging activities. The Company must adopt SFAS No. 133
        no later than the first quarter of fiscal year 2001; adoption of this
        statement is not expected to have a material effect on earnings or the
        financial position of the Company.


Note B  Inventories
        -----------

        Inventories consist of the following:

                                               March 31,           December 31,
                                                 2000                  1999
                                                 ----                  ----
        Raw materials and supplies             $135,561              $137,337
        Finished goods                          138,746               138,417
                                               --------              --------
                                                274,307               275,754
        LIFO reserve                             58,779                57,056
                                               --------              --------
        Total inventories                      $333,086              $332,810
                                               ========              ========


Note C  Contingent Matters
        ------------------

        The Company is a party to various legal proceedings incidental to its
        business and is subject to a variety of environmental and pollution
        control laws and regulations in the jurisdictions in which it operates.
        As is the case with other companies in similar industries, the Company
        faces exposure from actual or potential claims and legal proceedings
        involving environmental matters. Although it is very difficult to
        quantify the potential impact of compliance with or liability under
        environmental protection laws, management believes that the ultimate
        aggregate cost to the Company of environmental remediation, as well as
        other legal proceedings arising out of operations in the normal course
        of business, will not result in a material adverse effect upon its
        financial condition or results of operations.



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Part I  Financial Information

Item 1  Financial Statements

Note D  Computation of Earnings per Share
        ---------------------------------

        The following table sets forth the computation of net income per common
        share and net income per common share - assuming dilution (shares in
        thousands):

                                                              Three Months Ended
                                                                   March 31
                                                                   --------

                                                                2000      1999
                                                                ----      ----

        Net income                                            $15,150    $12,973
                                                              =======    =======
        Weighted average number of shares outstanding          23,876     23,703
        Dilutive effect of stock options                          334        541
                                                              -------    -------
        Weighted average number of shares outstanding -
             assuming dilution                                 24,210     24,244
                                                               ======     ======
        Net income per common share                              $.63       $.55
                                                                 ====       ====
        Net income per common share -
             assuming dilution                                   $.63       $.54
                                                                 ====       ====


Note E  Comprehensive Income
        --------------------

        The principal differences between net income as reported in the
        condensed statements of consolidated income and comprehensive income
        are foreign currency translation adjustments recorded in stockholders'
        equity. Comprehensive income for the three months ended March 31, 2000
        and 1999 was $15,214 and $12,704, respectively, and did not differ
        materially from net income.


Note F  Subsequent Events (Unaudited)
        -----------------------------

        On April 4, 2000, the Company acquired Outokumpu Nickel Oy (OKN), a
        world class nickel refinery located in Harjavalta, Finland, with annual
        sales in fiscal 1999 of approximately $330 million. The cash purchase
        price of $173.7 million was financed entirely through bank borrowings.
        The final purchase price is subject to adjustment based on the actual
        assets and liabilities of OKN at the closing date. The acquisition,
        which is not reflected in the accompanying financial statements, will be
        accounted for by the purchase method of accounting.

        In conjunction with the OKN acquisition, the Company increased its
        existing credit facilities to $675 million, comprised of a $325 million
        revolving credit facility, a $150 million five-year term loan and a
        $200 million seven-year term loan.

        On April 28, 2000, the Company purchased 19.9% of Weda Bay Minerals,
        Inc., by way of a private placement of treasury shares, for a cash
        purchase price of $4.6 million. This transaction is the initial phase of
        the Company's commitment to provide up to $18 million of financing to
        complete a bankable feasibility study for the development of the
        Halmahera Island nickel and cobalt laterite deposits.



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Item 2  Management's Discussion and Analysis of Financial Condition and Results
        of Operations

        RESULTS OF OPERATIONS

        Three Months Ended March 31, 2000 Compared to Three Months Ended
        March 31, 1999

        Net sales for the three months ended March 31, 2000 were $148.3 million,
        an increase of 29.9% compared to the same period for 1999. The increase
        in sales resulted principally from increases in physical volume of
        products sold and higher sales of cobalt containing products.

        The following table summarizes market price fluctuations on the primary
        raw materials used by the Company in manufacturing its products:

                                           Market Price Ranges per Pound
                                            Three Months Ended March 31,
                                            ----------------------------
                                             2000                   1999
                                             ----                   ----

        Cobalt - 99.3% Grade         $11.91  to   $15.25      $6.70 to  $17.43
        Nickel                       $ 3.69  to   $ 4.74      $1.81 to  $ 2.33
        Copper                       $ 0.78  to   $ 0.87      $0.61 to  $ 0.66

        The following table sets forth the pounds of carboxylates, salts and
        powders sold during each period:

                                       Three Months Ended March 31,
                                       ----------------------------   Percentage
        (in millions of pounds)            2000          1999          Change
                                           ----          ----          ------

        Carboxylates                       19.5          17.5            11.4%
        Salts                              27.0          23.9            13.0%
        Powders                            12.1          10.3            17.5%
                                           ----          ----
                                           58.6          51.7            13.3%
                                           ====          ====

        The increase in physical volume of carboxylate products sold was
        primarily due to increased sales of cobalt catalysts and driers in
        Europe and stronger sales of PVC plastic additives in Asia Pacific. The
        increase in physical volume of salt products reflects higher sales of
        battery grade chemicals in Asia Pacific; strong demand for cobalt and
        nickel products in the United States, particularly to customers in the
        steel and pigments and ceramics industries; and increased volume of
        electronics chemicals to the printed circuit board industry. The
        increase in physical volume of powders sold reflects increases in cobalt
        powder sales to the battery industry in Asia Pacific, tungsten powders
        to the hard metal tool and diamond tool industries in the Americas, and
        copper powders used in automotive applications.

        Gross profit increased to $42.0 million for the three month period ended
        March 31, 2000, a 13.2% increase over the same period in 1999. The
        improvement in gross profit was primarily the result of increased
        volumes. Cost of products sold increased to 71.7% for the three months
        ended March 31, 2000 from 67.5% of net sales during the same period of
        1999 as a result of higher sales of lower value added cobalt containing
        products and higher nickel and copper pricing.

        Selling, general and administrative expenses increased by $.7 million in
        the three month period ended March 31, 2000 from the same period in
        1999, resulting from general increases in administrative costs due to
        the Company's growth. However, due to the increase in net sales
        resulting from increases in physical volume of products sold, selling,
        general and administrative expenses decreased to 10.1% of net sales for
        the first three months of 2000 compared to 12.5% of net sales for the
        same period in 1999.



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Part I

Item 2  Management's Discussion and Analysis of Financial Condition and Results
        of Operations

        Other expense - net in 2000 was $5.4 million compared to $4.0 million in
        1999, due primarily to increased interest expense on higher outstanding
        borrowings as a result of payments made on capital expenditures.

        Income taxes as a percentage of income before income taxes decreased to
        29.9% for the first quarter of 2000 from 30.9% in the same period in
        1999. The lower effective tax rate is due primarily to higher income
        earned in the relatively low statutory tax country of Finland and a tax
        holiday in Malaysia.

        Net income for the three month period ended March 31, 2000 was $15.2
        million, an increase of $2.2 million from the same period in 1999, due
        to the aforementioned factors.


        LIQUIDITY AND CAPITAL RESOURCES

        During the three month period ended March 31, 2000, the Company's net
        working capital increased by approximately $13 million compared to
        December 31,1999, primarily due to advance payments made for
        cobalt-copper alloy funded through bank borrowings. Capital expenditures
        in the first quarter were primarily related to the continuing smelter
        construction project in Lubumbashi, Democratic Republic of Congo. These
        capital expenditures were funded through cash generated by operations as
        well as additional borrowings under the Company's revolving credit
        facility.

        In April, 2000, the Company's credit facilities were revised and
        increased to $675 million, in conjunction with the acquisition of
        Outokumpu Nickel Oy. These senior secured credit facilities are
        comprised of a $325 million revolving credit facility, a $150 million
        five-year term loan and a $200 million seven-year term loan.

        The Company believes that it will have sufficient cash generated by
        operations and through its credit facilities to provide for its future
        working capital and capital expenditure requirements and to pay
        quarterly dividends on its common stock, subject to the Board's
        discretion. Subject to several limitations in its credit facilities, the
        Company may incur additional borrowings under this line to finance
        working capital and certain capital expenditures, including, without
        limitation, the purchase of additional raw materials.

        FORWARD LOOKING STATEMENTS

        The Company is making this statement in order to satisfy the "safe
        harbor" provisions contained in the Private Securities Litigation Reform
        Act of 1995. The foregoing discussion includes forward-looking
        statements relating to the business of the Company. Such forward-looking
        statements are subject to uncertainties and factors relating to the
        Company's operations and business environment, all of which are
        difficult to predict and many of which are beyond the control of the
        Company, that could cause actual results of the Company to differ
        materially from those matters expressed in or implied by such
        forward-looking statements. The Company believes that the following
        factors, among others, could affect its future performance and cause
        actual results of the Company to differ materially from those expressed
        in or implied by forward-looking statements made by or on behalf of the
        Company: (a) the price and supply of raw materials, particularly cobalt,
        copper and nickel; (b) demand for metal-based specialty chemicals in the
        mature markets in the United States and Europe; (c) demand for
        metal-based



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Part I

Item 2  Management's Discussion and Analysis of Financial Condition and Results
        of Operations

        specialty chemicals in Asia-Pacific and other less mature markets; and
        (d) the effect of non-currency risks of investing in and conducting
        operations in foreign countries, including those relating to political,
        social, economic and regulatory factors, together with fluctuations in
        currency exchange rates upon the Company's international operations.

Item 3  Quantitative and Qualitative Disclosures About Market Risk

        A discussion of market risk exposures is included in Part II, Item 7a,
        "Qualitative and Quantitative Disclosure About Market Risk", of the
        Company's 1999 Annual Report on Form 10-K. There have been no material
        changes during the three months ended March 31, 2000.

Part II Other Information
Item 6  Exhibits and Reports on Form 8-K

        The following exhibits are included herein:

        Exhibit (10) Material Contracts

        10.1  Credit Agreement dated as of April 3, 2000 among OM Group, Inc. as
              borrower; the lending institutions named therein as lenders; DLJ
              Capital Funding, Inc. as a lender, the syndication agent and a
              joint lead arranger; National City Bank as a lender,
              administrative agent, collateral agent and a joint lead arranger;
              and ABN Amro Bank N.V. as a lender and documentation agent.

        Exhibit (15.1)  Independent Accountants' Review Report
        Exhibit (15.2)  Letter re: Unaudited Interim Financial Information
        Exhibit (27)    Financial Data Schedule

        The following report on Form 8-K was filed during the three months ended
        March 31, 2000.

        1. The Company's Current Report on Form 8-K filed with the Commission on
           April 18, 2000 regarding the Company's acquisition of Outokumpu
           Nickel Oy.



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                                    SIGNATURE


Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.


May 12, 2000                       OM GROUP, INC.



                                   /s/ James M. Materna
                                   ---------------------------------------------
                                   James M. Materna
                                   Chief Financial Officer
                                   (Duly authorized signatory of OM Group, Inc.)



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