<PAGE>
================================================================================

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

(Mark One)

|X|                QUARTERLY REPORT UNDER SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
                For the quarterly period ended September 30, 1999
                                       OR
|_|             TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

               For the transition period from ________ to ________
                        Commission File Number 001-14789

                                   GENTEK INC.
             (Exact name of Registrant as specified in its charter)

          Delaware                                              02-0505547
(State of other jurisdiction of                              (I.R.S. Employer
incorporation or organization)                            Identification Number)

           Liberty Lane
        Hampton, New Hampshire                                    03842
(Address of principal executive offices)                        (Zip Code)

       Registrant's telephone number, including area code: (603) 929-2264

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 |_|

The number of shares of Common Stock outstanding at October 31, 1999 was
16,859,825. The number of shares of Class B Common Stock outstanding at October
31, 1999 was 3,958,421.

================================================================================



<PAGE>

                                   GENTEK INC.

                                    FORM 10-Q

                    QUARTERLY PERIOD ENDED SEPTEMBER 30, 1999

                                      INDEX

                                                                        Page No.
                                                                        --------
PART I. FINANCIAL INFORMATION:

      Item 1. Financial Statements

      Consolidated Statements of Operations - Three Months and Nine Months
       Ended September 30, 1998 and 1999.............................       1

      Consolidated Balance Sheets - December 31, 1998 and
       September 30, 1999............................................       2

      Consolidated Statements of Cash Flows - Nine Months Ended
       September 30, 1998 and 1999...................................       3

      Notes to the Consolidated Financial Statements.................      4-9

   Item 2.  Management's Discussion and Analysis of Financial
          Condition and Results of Operations........................     10-12

   Item 3.  Quantitative and Qualitative Disclosure about Market Risk      12

PART II. OTHER INFORMATION:

   Item 1.  Legal Proceedings........................................      13

   Item 2.  Changes in Securities and Use of Proceeds................      13

   Item 3.  Defaults upon Senior Securities..........................      13

   Item 4.  Submission of Matters to a Vote of Security Holders......      13

   Item 5.  Other Information........................................      14

   Item 6.  Exhibits and Reports on Form 8-K.........................      14

   SIGNATURES........................................................      15

   EXHIBIT INDEX.....................................................      16

   EXHIBITS..........................................................      17




<PAGE>

Item 1.  Financial Statements

                                   GENTEK INC.

                      CONSOLIDATED STATEMENTS OF OPERATIONS
                      (In thousands, except per share data)
                                   (unaudited)

<TABLE>
<CAPTION>
                                                                Three Months Ended        Nine Months Ended
                                                                   September 30,             September 30,
                                                                   -------------             -------------
                                                                 1998         1999         1998        1999
                                                              ---------    ---------    ---------   ---------

<S>                                                           <C>          <C>          <C>         <C>
Net revenues ..............................................   $ 112,562    $ 263,834    $ 331,453   $ 609,324
Cost of sales .............................................      80,692      195,792      234,935     453,938
Selling, general and administrative expense ...............      13,951       34,159       40,347      80,003
                                                              ---------    ---------    ---------   ---------
    Operating profit ......................................      17,919       33,883       56,171      75,383
Interest expense ..........................................       4,099       13,077       10,626      25,378
Interest income ...........................................         336          146          678         739
Foreign currency transaction (gains) losses ...............         107         (787)         398      (1,175)

Other (income) expense, net ...............................        (109)         123           11         262
                                                              ---------    ---------    ---------   ---------
    Income from continuing operations before income
     taxes and extraordinary item .........................      14,158       21,616       45,814      51,657
Income tax provision ......................................       5,432       10,896       18,841      23,890
                                                              ---------    ---------    ---------   ---------
    Income from continuing operations before
     extraordinary item ...................................       8,726       10,720       26,973      27,767
Income from discontinued operations (net of tax)  .........       3,040           --        9,339       1,006
                                                              ---------    ---------    ---------   ---------
    Income before extraordinary item ......................      11,766       10,720       36,312      28,773
Extraordinary item - loss from  extinguishment of debt (net
 of tax of $2,395 and $3,231, respectively) ...............          --           --        3,661       4,939
                                                              ---------    ---------    ---------   ---------
        Net income ........................................   $  11,766    $  10,720    $  32,651   $  23,834
                                                              =========    =========    =========   =========


Earnings per common share - basic:
Income from continuing operations .........................   $     .42    $     .51    $    1.28   $    1.32
Income from discontinued operations (net of tax)  .........         .14           --          .44         .05
Extraordinary item - loss from  extinguishment of debt
 (net of tax) .............................................          --           --          .17         .23
                                                              ---------    ---------    ---------   ---------
        Net income ........................................   $     .56    $     .51    $    1.55   $    1.14
                                                              =========    =========    =========   =========

Earnings per common share - assuming dilution:
Income from continuing operations .........................   $     .40    $     .50    $    1.23   $    1.29
Income from discontinued operations (net of tax)  .........         .14           --          .43         .05
Extraordinary item - loss from  extinguishment of debt
 (net of tax) .............................................          --           --          .17         .23
                                                              ---------    ---------    ---------   ---------
        Net income ........................................   $     .54    $     .50    $    1.49   $    1.11
                                                              =========    =========    =========   =========
</TABLE>

      See the accompanying notes to the consolidated financial statements.


                                      -1-



<PAGE>

                                   GENTEK INC.

                           CONSOLIDATED BALANCE SHEETS
                        (In thousands, except share data)

<TABLE>
<CAPTION>
                                             ASSETS
                                                                December 31,   September 30,
                                                                -----------    ------------
                                                                    1998          1999
                                                                -----------    -----------
                                                                               (unaudited)
<S>                                                             <C>            <C>
Current assets:
     Cash and cash equivalents ..............................   $    61,310    $    34,459
     Receivables, net .......................................        60,620        211,999
     Inventories ............................................        37,619        118,012
     Deferred income taxes ..................................        11,494         27,645
     Other current assets ...................................           826         25,108
                                                                -----------    -----------
       Total current assets .................................       171,869        417,223
Property, plant and equipment, net ..........................       196,526        353,096
Goodwill, net of amortization ...............................        71,444        393,357
Other assets ................................................        21,687         31,808
Net assets of discontinued operations .......................        75,292             --
                                                                -----------    -----------
       Total assets .........................................   $   536,818    $ 1,195,484
                                                                ===========    ===========

                                 LIABILITIES AND EQUITY (DEFICIT)

Current liabilities:
    Accounts payable ........................................   $    42,813    $    90,052
    Accrued liabilities .....................................        60,925        161,752
    Current portion of long-term debt .......................        50,802         43,236
                                                                -----------    -----------
       Total current liabilities ............................       154,540        295,040
Long-term debt ..............................................       306,729        712,204
Other liabilities ...........................................       130,245        175,755
                                                                -----------    -----------
       Total liabilities ....................................       591,514      1,182,999
                                                                -----------    -----------
Equity (deficit):
    Preferred Stock, $.01 par value; authorized 10,000,000
     shares; none issued or outstanding .....................            --             --
    Common Stock, $.01 par value; authorized 100,000,000
     shares; issued:  12,654,489 and 16,876,017 shares at
     December 31, 1998 and September 30, 1999, respectively .           127            168
    Class B Common Stock, $.01 par value; authorized
     40,000,000 shares; issued and outstanding:
     9,758,421 and 3,958,421  shares at December 31, 1998 and
     September 30, 1999, respectively .......................            97             40
    Capital deficit .........................................      (182,563)          (848)
    Accumulated other comprehensive income ..................        (2,446)            98
    Retained earnings .......................................       162,378         13,289
    Treasury stock, at cost: 1,641,166 and 16,192 shares at
     December 31, 1998 and September 30, 1999, respectively .       (32,289)          (262)
                                                                -----------    -----------
       Total equity (deficit) ...............................       (54,696)        12,485
                                                                -----------    -----------
       Total liabilities and equity (deficit) ...............   $   536,818    $ 1,195,484
                                                                ===========    ===========
</TABLE>

      See the accompanying notes to the consolidated financial statements.


                                      -2-



<PAGE>

                                   GENTEK INC.

                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (In thousands)
                                   (unaudited)
<TABLE>
<CAPTION>
                                                                         Nine Months Ended
                                                                           September 30,
                                                                         -----------------
                                                                       1998          1999
                                                                    ----------    ---------
<S>                                                                  <C>          <C>
Cash flows from operating activities:
     Net income ..................................................   $  32,651    $  23,834
     Adjustments to reconcile net income to net cash
      provided by operating activities:
      Depreciation and amortization ..............................      17,539       31,156
      Net loss on disposition of long-term assets ................         113          219
      Unrealized exchange gain (loss) ............................         898         (779)
      Restricted unit plan costs .................................         843          607
      Loss on extinguishment of debt .............................       6,056        8,170
      Income from discontinued operations ........................      (6,680)      (1,006)
      Increase in receivables ....................................      (4,547)     (21,875)
      Increase in inventories ....................................      (3,060)         (77)
      (Decrease) in accounts payable .............................      (1,207)      (1,331)
      Increase (decrease) in accrued liabilities .................      (2,438)      11,251
      Increase  (decrease)  in other  liabilities  and assets, net      (7,601)      (3,165)
                                                                     ---------    ---------
         Net cash provided by continuing operations ..............      32,567       47,004
                                                                     ---------    ---------
Cash flows from investing activities:
     Capital expenditures ........................................     (22,185)     (22,258)
     Proceeds  from  sales or  disposals  of long term assets ....         256          354
     Cash provided by discontinued operations ....................      19,509     (122,711)
     Acquisition of businesses net of cash acquired* .............     (90,935)    (445,020)
                                                                     ---------    ---------
         Net cash used for investing activities ..................     (93,355)    (341,213)
                                                                     ---------    ---------
Cash flows from financing activities:
     Proceeds from long-term debt ................................     383,428      846,827
     Repayment of long-term debt .................................    (290,804)    (573,435)
     Payment to acquire treasury stock ...........................      (4,000)        (635)
     Exercise of stock options ...................................         314           --
     Dividends ...................................................      (2,099)      (2,079)
                                                                     ---------    ---------
         Net cash provided by financing activities ...............      86,839      270,678
                                                                     ---------    ---------
     Effect of exchange rate changes on cash .....................        (368)        (320)
                                                                     ---------    ---------
Increase (decrease) in cash and cash equivalents .................      25,683      (26,851)
Cash and cash equivalents at beginning of period .................      20,401       61,310
                                                                     ---------    ---------
Cash and cash equivalents at end of period .......................   $  46,084    $  34,459
                                                                     =========    =========

Supplemental information:
     Cash paid for income taxes ..................................   $  16,721    $  25,020
                                                                     =========    =========

     Cash paid for interest ......................................   $  16,830    $  17,696
                                                                     =========    =========

*Purchase of businesses net of cash acquired:
     Working Capital, other than cash ............................   $ (14,303)   $ (79,008)
     Plant, property and equipment ...............................     (36,436)    (158,078)
     Other assets ................................................     (41,622)    (341,309)
     Noncurrent liabilities ......................................       1,426      133,375
                                                                     ---------    ---------
      Net cash used to acquire businesses ........................   $ (90,935)   $(445,020)
                                                                     =========    =========
</TABLE>

      See the accompanying notes to the consolidated financial statements.


                                      -3-



<PAGE>

                                   GENTEK INC.

                 NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
             For the three and nine months ended September 30, 1999
                             (Dollars in thousands)
                                   (unaudited)


Note 1 - Basis of Presentation

      GenTek Inc.'s ("GenTek" or the "Company") manufacturing and performance
products businesses owned by the Company as of April 30, 1999 (the "GenTek
Business") were formerly part of The General Chemical Group Inc. ("GCG"). GCG
separated the GenTek Business from GCG's soda ash and calcium chloride business
(the "Industrial Chemicals Business") through a spinoff (the "Spinoff"). GCG
accomplished the Spinoff by transferring the GenTek Business to GenTek, and
distributing the common stock of GenTek to GCG's shareholders on April 30, 1999
(the "Spinoff Date"). Since the Spinoff Date, GCG and GenTek have been separate,
stand-alone companies with GenTek operating the GenTek Business, and GCG
operating the Industrial Chemicals Business.

      The Spinoff has been treated as a reverse spinoff for financial statement
purposes because the GenTek Business constitutes a greater proportion of GCG's
assets and operations. Therefore, the Spinoff has been reflected, for financial
statement presentation, as if GenTek formed a new company consisting of the
Industrial Chemicals Segment and distributed the stock of that company as a
dividend to GenTek's stockholders, with the assets and operations of the
Performance Products and Manufacturing Segments remaining with GenTek.
Accordingly, the GenTek financial statements reflect the financial position and
results of operations of the Performance Products and Manufacturing Segments as
continuing operations and the financial position and results of operations of
the industrial chemicals business as discontinued operations. The distribution
of the net liabilities of the industrial chemicals business has been recorded as
a capital contribution to the Company.

      For the purpose of governing certain ongoing relationships between GCG and
GenTek after the Spinoff and to provide mechanisms for an orderly transition,
GCG and GenTek entered into various agreements which are described in Amendment
No. 2 to the Registration Statement on Form 10 (file no. 001-14789) of GenTek
(the "Form 10") filed with the Securities and Exchange Act of 1934.

      The accompanying unaudited consolidated financial statements have been
prepared by the Company pursuant to the rules and regulations of the Securities
and Exchange Commission (the "SEC"). The financial statements do not include
certain information and footnotes required by generally accepted accounting
principles. In the opinion of management, all adjustments (consisting of normal
recurring adjustments) considered necessary for a fair presentation have been
included. Operating results for the nine months ended September 30, 1999 are not
necessarily indicative of the results that may be expected for the year ended
December 31, 1999. These statements should be read in conjunction with the Form
10.


                                      -4-



<PAGE>

                                   GENTEK INC.

           NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (continued)
             For the three and nine months ended September 30, 1999
                             (Dollars in thousands)
                                   (unaudited)

Note 2 - Discontinued Operations

      Discontinued operations represent the Industrial Chemical Business of GCG
(see Note 1). Prior to the Spinoff Date an allocation of certain assets,
liabilities and expenses was made related to discontinued operations. In the
opinion of management, expenses were allocated to the discontinued operations in
a reasonable and consistent basis using management's estimate of services
provided to the discontinued business by GCG. General corporate overhead
expenses were not allocated to discontinued operations. However, such
allocations are not necessarily indicative of the level of expenses which might
have been incurred had the industrial chemicals business been operating as a
stand-alone entity during the periods presented or expected to be incurred in
the future.

      In connection with the Spinoff, General Chemical Industrial Products, a
subsidiary of GCG, entered into certain financing arrangements prior to the
completion of the Spinoff. Out of the proceeds, approximately $130,000 was used
to repay outstanding borrowings of GCG under credit facilities existing prior to
the Spinoff.

Note 3 - Stockholder's Equity

      Prior to the Spinoff, a stockholder converted 5.8 million shares of GCG
Class B Common Stock into an identical number of shares of GCG Common Stock. On
the Spinoff Date, GCG issued shares of Common Stock and Class B Stock of GenTek
and distributed them to the holders of GCG's stock on a one-for-one basis.
Accordingly, as of the Spinoff Date, the equity accounts have been reclassified
to reflect the formation of GenTek and the issuance of its stock by recording
the par value of the stock issued and reclassifying all other equity to paid in
capital.

      In conjunction with the Spinoff, the distribution of the net liabilities
of the industrial chemicals business has been recorded as a capital contribution
of $46,815 to the Company. Certain industrial chemical business asset and
liability balances, including but not limited to pension, postretirement and
deferred taxes, have been recorded based on preliminary estimates. As a result,
the capital contribution recorded by the Company reflects these estimates and is
subject to adjustment based on the final calculation of these balances.

Note 4 - Comprehensive Income

      Total comprehensive income is comprised of net income and foreign currency
translation gains and losses. Total comprehensive income for the three months
ended September 30, 1998 and 1999 was $11,824 and $10,764, respectively. Total
comprehensive income for the nine months ended September 30, 1998 and 1999 was
$32,638 and $24,063, respectively.

Note 5 - Earnings Per Share

      The computation of basic earnings per share is based on the weighted
average number of common shares and contingently issuable shares outstanding
during the period. The computation of diluted earnings per share also includes
the exercise of all stock options and restricted units, using the treasury stock
method.


                                      -5-



<PAGE>

                                   GENTEK INC.

           NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (continued)
             For the three and nine months ended September 30, 1999
                             (Dollars in thousands)
                                   (unaudited)

      The shares outstanding used for the basic and diluted earnings per common
share computation are reconciled as follows:

<TABLE>
<CAPTION>
                                       Three Months Ended         Nine Months Ended
                                          September 30,             September 30,
                                     -----------------------   -----------------------
                                        1998         1999         1998         1999
                                     ----------   ----------   ----------   ----------
<S>                                  <C>          <C>          <C>          <C>
Basic earnings per common share:
    Weighted average common
     shares outstanding ..........   21,099,838   20,989,245   21,085,181   20,942,676
                                     ==========   ==========   ==========   ==========
Diluted earnings per common share:
    Weighted average common
     shares outstanding ..........   21,099,838   20,989,245   21,085,181   20,942,676
    Options ......................      776,724      442,800      894,297      494,766
                                     ----------   ----------   ----------   ----------
        Total ....................   21,876,562   21,432,045   21,979,478   21,437,442
                                     ==========   ==========   ==========   ==========
</TABLE>

      At September 30, 1998 and 1999 options to purchase 423,500 shares and
1,574,500 shares of common stock, respectively, were not included in the
computation of diluted earnings per common share because the exercise price was
greater than the average market price of the common shares. The options, which
expire from 2007 through 2009, were still outstanding at September 30, 1999.

Note 6 - Acquisitions

      On February 23, 1999, the Company acquired for $58,020 through a cash
tender offer, Defiance Inc. ("Defiance"), a manufacturer of specialty
antifriction bearings for the transportation industry and a provider of vehicle
testing services, tooling design and preproduction dies and components primarily
for the automotive industry. On April 6, 1999, the Company acquired for
approximately $220,000 Noma Industries Limited ("Noma"), a leading North
American producer of insulated wire and wire-related products for the
automotive, appliance and electronic industries. On August 20, 1999, the Company
acquired for approximately $222,000, including approximately $63,000 in assumed
debt, Berlin-based Krone AG from Jenoptik AG. Krone is a leading global supplier
of connection and distribution technology for telecommunications and data
networks. In addition, during the third quarter the Company made two small
acquisitions (Structural Kinematics, a leading provider of testing and
engineering services to the automotive, truck and agricultural equipment
industries, and the business of Pacific Pac International Inc. ("Pacific Pac"),
a supplier of ultra high-purity solvents to the electronics industry).
Funding for these transactions was provided by existing cash and borrowings
under the Company's existing debt and credit facilities. The acquisitions are
accounted for under the purchase method, and accordingly, the net assets and
results of operations are included in the financial statements from the date of
their respective acquisitions. The allocation of purchase price of Defiance,
Noma, Structural Kinematics, Krone and Pacific Pac is based on valuation
information available to the Company which is subject to change as such
information is finalized. Goodwill is being amortized on a straight line basis
over a period which ranges from 25 to 35 years. The following proforma
information presents the results of operations as if the acquisitions had
occurred on January 1, 1998. The proforma information has been prepared for
comparative purposes and is not necessarily indicative of what would have
occurred had the acquisitions occurred on such date or of results which may
occur in the future. Had the


                                      -6-



<PAGE>

acquisitions occurred as of January 1, 1998, net sales would have been
$1,135,000 and $896,917 income before extraordinary items would have been
$26.522 ($1.21 per share) and $26,392 ($1.23 per share) and net income
would have been $33,160 ($1.51 per share) and $22,459 ($1.05 per share)
for 1998 and the nine months ended September 30, 1999.

Note 7 - Additional Financial Information

      The components of inventories were as follows:

                                                  December 31,     September 30,
                                                  ------------     -------------
                                                      1998              1999
                                                    --------         ----------
                                                                     (unaudited)

Raw materials ............................          $ 11,395         $ 43,622
Work in process ..........................             6,049           22,054
Finished products ........................            15,706           47,759
Supplies and containers ..................             4,469            4,577
                                                    --------         ----------
                                                    $ 37,619         $118,012
                                                    ========         ==========

Note 8 - Long-Term Debt

      Long-term debt consists of the following:

<TABLE>
<CAPTION>
                                                               December 31,  September 30,
                                                               -----------   -------------
                                                  Maturities       1998          1999
                                                  ----------   -----------   -------------
                                                                              (unaudited)
<S>                                                <C>           <C>            <C>
Bank Term Loans - floating rates .............     1999-2007     $299,000       $249,625
$300,000 Revolving Credit Facility -
 floating rate ...............................        2005             --        215,000
Senior Subordinated Notes - 11% ..............        2009             --        200,000
Canada Senior Notes - 9.09% ..................        1999         48,269             --
General Chemical Canada Limited
  Revolving Credit Facility - floating rate ..        2000          3,877             --
Other Debt - floating rate ...................                      6,385         90,815
                                                                 --------       --------
    Total Debt ...............................                    357,531        755,440
    Less: Current Portion ....................                     50,802         43,236
                                                                 --------       --------
    Net Long-Term Debt .......................                   $306,729       $712,204
                                                                 ========       ========
</TABLE>

      On April 30, 1999, the Company entered into a new credit facility with a
syndicate of banks and other financial institutions consisting of a $100,000
Term Loan ("Tranche A") maturing on April 30, 2005, a $150,000 Term Loan
("Tranche B") maturing on April 30, 2007 and a $300,000 Revolving Credit
Facility maturing on April 30, 2005. The term loans and revolving credit
facility bear interest at a rate equal to a spread over a reference rate.
Tranche A is payable in consecutive quarterly installments commencing September
30, 2000. Tranche B is payable in consecutive quarterly installments which
commenced on July 31, 1999. The facility is secured by a first priority security
interest in all of the capital stock of the Company's domestic subsidiaries,
and 65 percent of the capital stock of the Company's foreign subsidiaries. The
proceeds were used to repay


                                      -7-



<PAGE>

                                   GENTEK INC.

           NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (continued)
             For the three and nine months ended September 30, 1999
                             (Dollars in thousands)
                                   (unaudited)

outstanding borrowings of GCG under its existing credit facilities prior to the
Spinoff, resulting in an extraordinary loss from the extinguishment of debt of
$4,939, net of a tax benefit of $3,231.

      On August 9, 1999, the Company issued $200,000 11% Senior Subordinated
Notes due 2009. Net proceeds of the offering of $194,000 were used to repay a
portion of the borrowing outstanding under the Company's Revolving Credit
Facility.

Note 9 - Dividends

      On September 21, 1999, GenTek's Board of Directors declared a quarterly
cash dividend of $.05 per share of Common Stock and Class B Common Stock,
payable October 16, 1999, to shareholders of record on October 1, 1999.

Note 10 - Related Party Transactions

Management Agreement

      The Company is party to a management agreement with Latona Associates
("Latona") which is controlled by a stockholder of the Company under which the
Company receives corporate supervisory and administrative services and strategic
guidance. Prior to the Spinoff, Latona provided these services to the GenTek
Business pursuant to its agreement with GCG. The Company was charged $3,369 and
$3,618 for the nine months ended September 30, 1998 and 1999, respectively. In
connection with the Spinoff, Latona agreed to provide its services separately to
GenTek and GCG. GenTek pays Latona, for periods subsequent to the Spinoff, a
quarterly fee of $1,125, to be adjusted after 1999 for increases in U.S. CPI. In
addition, if Latona provides advisory services to GenTek in connection with any
acquisition, business combination or other strategic transaction, GenTek will
pay Latona Associates additional fees comparable with fees received by
investment banking firms for such services. During 1998, the Company paid Latona
$500 in connection with acquisitions. During 1999, GenTek was charged fees of
$3,600 in the aggregate in connection with the acquisitions of Defiance,
Noma and Krone. GenTek's agreement with Latona expires on December 31, 2004.

Transition Support Agreement

      After the Spinoff, GenTek provides GCG with certain administrative
services pursuant to the Transition Support Agreement. For the three and nine
months ended September 30, 1999, GenTek charged GCG $916 and $1,534,
respectively, related to this agreement.

Other Transactions

      GCG supplies soda ash and calcium chloride to General Chemical Corporation
("GCC"), a wholly-owned subsidiary of GenTek. For the nine months ended
September 30, 1998 and 1999, purchases from GCG amounted to $4,045 and $10,045,
respectively.


                                      -8-



<PAGE>

                                   GENTEK INC.

           NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS (continued)
             For the three and nine months ended September 30, 1999
                             (Dollars in thousands)
                                   (unaudited)

Note 11 - Segment Information

      Industry segment information for continuing operations is summarized as
follows:

<TABLE>
<CAPTION>
                                                Total Revenues           Operating Profit
                                               Nine Months Ended         Nine Months Ended
                                            -----------------------   ------------------------
                                                  September 30,             September 30,
                                            -----------------------   ------------------------
                                               1998         1999         1998          1999
                                            ----------   ----------   ----------    ----------

<S>                                         <C>          <C>          <C>           <C>
Performance Products ....................   $  238,265   $  254,613   $   39,188    $   34,071
Manufacturing ...........................       93,188      315,102       21,842        48,939
Telecommunications Equipment ............           --       39,609           --         2,941
                                            ----------   ----------   ----------    ----------
      Total Segment .....................      331,453      609,324       61,030        85,951
Eliminations and other corporate expenses           --           --       (4,859)      (10,568)
                                            ----------   ----------   ----------    ----------
Consolidated ............................   $  331,453   $  609,324       56,171        75,383
                                            =========    ==========
Interest expense ........................                                 10,626        25,378
Other income, net .......................                                    269         1,652
                                                                      ----------    ----------
Consolidated income from continuing
 operations before income taxes .........                             $   45,814    $   51,657
                                                                      ==========    ==========
</TABLE>

                                               Identifiable Assets
                                           --------------------------
                                           December 31, September 30,
                                           -----------  -------------
                                                1998         1999
                                           -----------  -------------

 Performance Products ...................   $  381,202   $  344,737
 Manufacturing ..........................       78,267      483,703
 Telecommunications Equipment ...........           --      358,152
 Corporate ..............................        2,057        8,892
                                            ----------   ----------
 Consolidated ...........................   $  461,526   $1,195,484
                                            ==========   ==========

      The Telecommunications Equipment segment is comprised of the businesses of
Krone which were acquired by the Company on August 20, 1999. Krone is a leading
global supplier of connection and distribution technology for telecommunications
and data networks.


                                      -9-



<PAGE>

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

September 30, 1999 Compared with December 31, 1998

      On February 23, 1999, the Company acquired Defiance Inc., a manufacturer
of specialty antifriction bearings for the transportation industry and a
provider of vehicle testing services, tooling design and preproduction dies and
components primarily for the automotive industry. On April 6, 1999, the Company
acquired Noma Industries Limited, a leading North American producer of insulated
wire and wire-related products for the automotive, appliance and electronic
industries. On July 2, 1999, the Company acquired Structural Kinematics, a
leading provider of testing and engineering services to the automotive, truck
and agricultural equipment industries. On August 20, 1999, the Company acquired
Berlin-based Krone AG, a leading global supplier of connection and distribution
technology for telecommunications and data networks. On September 3, 1999, the
Company acquired the business of California-based Pacific Pac International
Inc., a supplier of ultra high-purity solvents to the electronics industry.
Funding for these transactions was provided by existing cash, and borrowings
under the Company's existing debt and credit facilities.

Results of Operations

      Net revenues for the three and nine month periods ended September 30, 1999
increased 134 percent and 84 percent to $263.8 million and $609.3 million,
respectively, from $112.6 million and $331.5 million, for the comparable periods
in 1998. These increases were primarily due to the acquisitions completed during
1999.

      Gross profit for the three and nine month periods ended September 30, 1999
increased $36.2 million and $58.9 million, respectively, over the comparable
prior year periods. These increases were principally related to the
abovementioned acquisitions in the Manufacturing Segment. Gross profit as a
percentage of net revenues for the first nine months of 1999 was 25 percent
compared to 29 percent for the prior year. This decrease is principally due to
lower margins in the acquired businesses and pricing pressures in certain of the
Company's performance chemical markets.

      Selling, general and administrative expense increased $20.2 million and
$39.7 million for the three and nine month periods ended September 30, 1999 as
compared to the prior year levels, principally due to the abovementioned
acquisitions and a $6.2 million one-time charge recorded in the second quarter
of 1999 primarily related to the Spinoff. Selling, general and administrative
expense as a percentage of net revenues for the first nine months of 1999 was 13
percent as compared to 12 percent for the comparable period in 1998, principally
due to the abovementioned one-time charge of $6.2 million.

      Interest expense was $13.1 million and $25.4 million for the three and
nine month periods ended September 30, 1999 as compared with $4.1 million and
$10.6 million for the comparable periods of 1998 principally due to higher
outstanding debt balances following the 1998 and 1999 acquisitions.

Financial Condition, Liquidity and Capital Resources

      Cash and cash equivalents were $34.5 million at September 30, 1999
compared with $61.3 million at year-end 1998. During the first nine months of
1999, the Company generated cash flow from continuing operations of $47.0
million, had net proceeds from debt of $846.8 million and cash flow from
discontinued operations of $122.7 million, which was used to fund acquisitions
of $445.0 million, repay debt of $573.4 million and make capital expenditures
of $22.3 million.


                                      -10-



<PAGE>

      The Company had working capital of $122.2 million at September 30, 1999 as
compared with $17.3 million at December 31, 1998. This increase in working
capital principally reflects the working capital of the newly acquired companies
partially offset by lower cash balances.

      The increases in property, plant and equipment, goodwill and long-term
debt reflect the assets and debt related to the various acquisitions completed
during 1999.

      In connection with the Spinoff, GenTek and GCG arranged for separate
credit facilities, the proceeds of which were used to repay outstanding
borrowings of GCG under its existing credit facilities prior to the Spinoff. On
April 30, GenTek put in place, with a syndicate of banks and other financial
institutions, credit facilities totaling $550 million, consisting of a $300
million revolving credit facility maturing in 2005 and term loans of $100
million and $150 million maturing in 2005 and 2007, respectively. The related
agreements contain certain restrictive covenants related to maximum leverage and
minimum interest coverage to be maintained by the Company.

      On August 9, 1999, the Company issued $200 million 11% Senior Subordinated
Notes due 2009. The net proceeds of this offering were $194.0 million. The
Company used the net proceeds to repay borrowings under its Revolving Credit
Facility.

      The Company paid the cash consideration for Krone, Noma, Defiance,
Structural Kinematics and Pacific Pac through cash on hand and reborrowings
under the Revolving Credit Facility.

Year 2000 Issue

      The Company has implemented a program to assess, mitigate and remediate
the potential impact of the Year 2000 problem. A Year 2000 problem can occur
where date-sensitive software uses two digit year date fields, sorting the Year
2000 ("00") before Year 1999 ("99"). The Year 2000 problem can arise in
hardware, software, or any other equipment or process that uses embedded
software or other technology. The failure of such systems to properly recognize
dates after December 31, 1999 could result in data corruption and processing
errors.

      The Company completed its assessment of its Year 2000 compliance status in
early 1997 and began work on its remediation program immediately thereafter. The
Company's remediation program has been structured to address its information and
non-information technology hardware, software, facilities and equipment
(collectively, "Systems"). GenTek has spent approximately $1.8 million to
replace or reprogram existing Systems for the Year 2000 compliance program. All
material Systems were Year 2000 compliant by March 31, 1999 and substantially
all Systems will be Year 2000 compliant by December 31, 1999. In the event that
the Company's material Systems are not Year 2000 compliant, the Company may
experience reductions or interruptions in operations which could have a material
adverse effect on the Company's results of operations.

      In addition, the Company has implemented a program to determine the Year
2000 compliance status of its material vendors, suppliers, service providers and
customers, including the railroad and trucking companies used to ship its
products or to transport raw materials to its manufacturing facilities. Based on
currently available information, the Company does not anticipate any material
impact to the Company based on the failure of such third parties to be Year 2000
compliant. However, the process of evaluating the Year 2000 compliance status of
material third parties is continually ongoing and, therefore, no guaranty or
warranty can be made as to such third parties' future compliance status or its
potential effect on the Company. The Company believes there exists a sufficient
number of suppliers of raw materials for the Company so that if any supplier is
unable to deliver raw materials due to Year 2000 problems, alternate sources
will be available and that any


                                      -11-



<PAGE>

supply interruption will not be material to the Company. There can be no
assurances, however, that the Company would be able to obtain all of its supply
requirements from such alternate sources in a timely manner or on terms
comparable with those of its current suppliers. If the railroads or trucking
companies that ship its products or raw materials fail to be Year 2000
compliant, the Company may not be able to arrange alternative and timely means
to ship its goods or raw materials, which could lead to interruptions or
slowdowns in its business. Possible worst case scenarios include interruptions
in the manufacturing process, the inability to ship orders and invoice and
collect amounts due the Company. The Company is preparing for the possible use
of alternative suppliers and means of transportation, possible adjustment of raw
materials and product inventory levels and contingencies with respect to
potential energy source interruptions, all in an effort to minimize the effects,
if any, of Year 2000 related interruptions or slowdowns caused by suppliers and
transporters.

      Before proceeding with the recent acquisitions of Structural Kinematics,
Krone and Pacific Pac and as part of its acquisition-related due diligence, the
Company reviewed Year 2000-related concerns for each and received assurances
from their respective managements that their businesses are, or prior to
year-end 1999 will be, materially Year 2000 compliant. As part of its
pre-acquisition due diligence, the Company reviewed various information,
including assessments and reports prepared by its outside consultants, the
periodic internal reports prepared by MIS personnel for senior management and
other information relating to these businesses and their respective Year 2000
procedures. Management has completed its own assessment for Systems of
Structural Kinematics, Krone and Pacific Pac, and the Company expects that their
material Systems will be Year 2000 compliant by December 31, 1999. In the
event that the material Systems for Krone are not Year 2000 compliant, the
Company may experience reductions or interruptions in their operations which
could have a material adverse effect on the Company's results of operations or
financial condition.

Item 3.  Qualitative and Quantitative Disclosures about Market Risk

      The Company's cash flows and earnings are subject to fluctuations
resulting from changes in interest rates and changes in foreign currency
exchange rates and the Company selectively uses financial instruments to manage
these risks. The Company's objective in managing its exposure to changes in
foreign currency exchange rates and interest rates is to reduce volatility on
earnings and cash flow associated with such changes. The Company has not
entered, and does not intend to enter, into financial instruments for
speculation or trading purposes.

      The Company measures the market risk related to its holding of financial
instruments based on changes in interest rates and foreign currency rates using
a sensitivity analysis. The sensitivity analysis measures the potential loss in
fair values, cash flows and earnings based on a hypothetical 10 percent change
in interest and currency exchange rates. The Company used current market rates
on its debt and derivative portfolio to perform the sensitivity analysis. Such
analysis indicates that a hypothetical 10 percent change in interest rates or
foreign currency exchange rates would not have a material impact on the fair
values, cash flows or earnings of the Company.


                                      -12-



<PAGE>

                           PART II. OTHER INFORMATION

Item 1. Legal Proceedings

      With respect to the Milwaukee Litigation and Delaware Valley Litigation
described in the Company's Form 10, filed with the SEC on January 27, 1999,
note:

      Milwaukee Litigation. On August 20, 1999, the Company and its insurer,
National Fire Union Insurance Company of Pittsburgh, Pennsylvania ("National
Union") entered into a settlement with plaintiffs to resolve the case. The
settlement agreement provides that National Union shall pay the total amount of
$1,500,000, which shall be allocated to provide approximately $1,150,000 to
compensate claimants and $350,000 for plaintiffs' attorneys' fees and settlement
administration costs. The settlement is structured as a class action settlement
pursuant to which all claims will be barred upon final court approval of the
settlement. The Company reserves the right to terminate the settlement in the
event that any claimants opt out of the settlement, the settlement is appealed
or the terms of the settlement are modified or vacated. The trial court granted
preliminary approval of the settlement on October 19, 1999. The deadline for
claimants to opt out of the settlement is December 6, 2000. Objections to the
settlement must be filed by February 7, 2000. The final approval hearing has
been scheduled for March 2, 2000.

      Delaware Valley Litigation. On September 24, 1999, the same attorneys that
filed the April, 1998 actions against the Company also filed a purported class
action complaint against the Company, titled Whisnant vs. General Chemical
Corporation, (in the court of Common Pleas, Delaware County, Pennsylvania, on
behalf of 550 current and former employees of the Sunoco (formerly Sun Company,
Inc.) Marcus Hook, Pennsylvania refinery located immediately adjacent to the
Company's Delaware Valley facility. The complaint alleges that unspecified
releases of sulfur dioxide and sulfur trioxide over unspecified timeframes
caused injuries to the plaintiffs, and seeks, among other things, to establish a
"trust fund" for medical monitoring for the plaintiffs. The Company believes
this claim is without merit and will vigorously defend itself in this matter.
Management further believes that the Company's current accruals and available
insurance should provide adequate coverage in the event of an adverse result in
this matter, and that, based on currently available information, this matter
will not have a material adverse effect on the Company's results of operations
or financial condition.

Item 2. Changes in Securities and Use of Proceeds

      None.

Item 3. Defaults upon Senior Securities

      None.

Item 4. Submission of Matters to a Vote of Security Holders

      None.


                                      -13-



<PAGE>

Item 5. Other Information

      Mr. Bruce Koepfgen was elected as a member of the Board of Directors of
GenTek Inc. on October 7, 1999. Mr. Koepfgen is a private investor who spent 23
years with Salomon Brothers Inc., 15 of which he was a managing director. Most
recently, he led Salomon's efforts in Fixed Income Sales and managed its Chicago
office and Midwest Sales Territory, Salomon's largest regional office. He also
was chairman of Salomon Analytics, a company established to develop
sophisticated fixed income analytic tools for institutional investors.

Item 6. Exhibits and Reports on Form 8-K

            (a)   Exhibits:

                  10.01 Indenture, dated as of August 9, 1999, among GenTek Inc.
                        and U.S. Bank Trust National Association, as Trustee,
                        with respect to GenTek Inc. 11% Senior Subordinated
                        Notes due 2009.

                  10.02 Exchange and Registration Rights Agreement, dated as of
                        August 9, 1999, among GenTek Inc., Chase Securities
                        Inc., Wasserstein Perella Securities, Inc. and First
                        Union Capital Markets.

                  27.01 Financial Data Schedule.

            (b)   Reports filed on Form 8-K:

               Form 8-K filed with the Securities and Exchange Commission on
               September 3, 1999 with respect to the acquisition of Krone AG.

               Form 8-K/A filed with the Securities and Exchange Commission on
               November 3, 1999 with respect to the acquisition of Krone AG.


                                      -14-



<PAGE>

                                   SIGNATURES

      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.

                                                    GENTEK INC.
                                    -------------------------------------------
                                                    Registrant


Date     November 12, 1999      /s/ Richard R. Russell
      ----------------------        -------------------------------------------
                                    Richard R. Russell
                                    President and Chief Executive Officer
                                    (Principal Executive Officer) and Director


Date     November 12, 1999      /s/ William C. Keightley
      ----------------------        -------------------------------------------
                                    William C. Keightley
                                    Vice President and Chief Financial Officer
                                    (Principal Financial and Accounting Officer)


                                      -15-



<PAGE>

                                  EXHIBIT INDEX

Exhibit No.                        Description                           Page

10.01  Indenture, dated as of August 9, 1999, among GenTek Inc. and
       U.S. Bank Trust National Association, as Trustee, with respect
       to GenTek Inc. 11% Senior Subordinated Notes due 2009.............

10.02  Exchange and Registration Rights Agreement, dated as of
       August 9, 1999, among GenTek Inc., Chase Securities Inc.,
       Wasserstein Perella Securities, Inc. and First Union
       Capital Markets...................................................

27.01  Financial Data Schedule...........................................



                                      -16-