UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                    FORM 8-K


                                 CURRENT REPORT


                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


                               September 19, 2002
                ------------------------------------------------
                Date of Report (Date of earliest event reported)


                             HEADWATERS INCORPORATED
              -----------------------------------------------------
             (Exact name of Registrant as specified in its charter)


         Delaware                     0-27808                  87-0547337
- ----------------------------        ------------            ------------------
(State or other jurisdiction        (Commission               (IRS Employer
      of incorporation)             File Number)            Identification No.)

                      11778 South Election Road, Suite 210
                                Draper, UT 84020
                     ---------------------------------------
                    (Address of principal executive offices)
                                   (Zip Code)


                                 (801) 984-9400
               --------------------------------------------------
              (Registrant's telephone number, including area code)


                                 Not Applicable
          -------------------------------------------------------------
         (Former name or former address, if changed since last report.)



Certain statements in this Report constitute  forward-looking  statements within
the meaning of the Private  Securities  Litigation  Reform Act of 1995. As such,
actual results may vary materially from such  expectations.  For a discussion of
certain  factors  that could cause actual  results to differ from  expectations,
please see the information set forth under the caption entitled "Forward-Looking
Statements" in PART I, ITEM 2 of Headwaters'  Quarterly  Report on Form 10-Q for
the quarter  ended June 30,  2002.  There can be no assurance  that  Headwaters'
results of operations will not be adversely affected by such factors. Headwaters
undertakes  no  obligation  to revise or  publicly  release  the  results of any
revision to these forward-looking statements. Readers are cautioned not to place
undue reliance on these forward-looking  statements,  which reflect management's
opinion only as of the date hereof.

Item 2.           Acquisition of Industrial Services Group, Inc.

As described in Exhibit 99,  attached  hereto,  Headwaters  acquired 100% of the
common  stock  of  Industrial  Services  Group,  Inc.  and  redeemed  all of its
outstanding  preferred  stock.  Headwaters paid $32.7 million in cash and issued
2.1 million shares of common stock as  consideration.  Concurrently,  Headwaters
retired the outstanding  indebtedness of ISG using a new $155 million  five-year
senior secured debt  facility,  $20 million of newly issued  subordinated  debt,
which  included $10 million of ISG  management-financed  debt, and cash on hand.
The former ISG  stockholders  have certain  registration  rights with respect to
resales of the shares of Headwaters common stock issued to them. Headwaters also
has  available a $20 million  senior debt revolver that was not drawn at closing
but which is available for general corporate purposes.

Item 7.           Financial Statements and Exhibits

         (a)      The following unaudited consolidated financial statements of
                  Industrial Services Group, Inc. and Subsidiaries are included
                  herein:

                  Condensed Consolidated Balance Sheets as of June 30, 2002 and
                    December 31, 2001
                  Condensed Consolidated Statements of Operations for the Three
                    and Six Months Ended June 30, 2002 and 2001
                  Condensed Consolidated Statements of Comprehensive Income
                    (Loss) for the Three and Six Months Ended June 30, 2002
                    and 2001
                  Condensed Consolidated Statements of Cash Flows for the Six
                    Months Ended June 30, 2002 and 2001
                  Notes to Condensed Consolidated Financial Statements

                  Note 1: Audited financial statements for Industrial Services
                  Group, Inc. and Subsidiaries as of December 31, 2001 and 2000
                  and for each of the three years in the period ended
                  December 31, 2001 were included with Headwaters' Report on
                  Form 8-K filed July 18, 2002.

                  Note 2: Industrial Services Group, Inc. is not an SEC
                  registrant. ISG Resources, Inc., a wholly-owned subsidiary of
                  Industrial Services Group, Inc., was an SEC registrant prior
                  to the acquisition of ISG Services Group, Inc. by Headwaters
                  on September 19, 2002. As an SEC registrant, ISG Resources,
                  Inc. has made various filings in accordance with the rules and
                  regulations of the SEC. The consolidated financial statements
                  of Industrial Services Group, Inc. included in this Form 8-K
                  include the operations of ISG Resources, Inc. and Industrial
                  Services Group, Inc. debt and are therefore not comparable to
                  the consolidated financial statements of ISG Resources, Inc.
                  included in previous ISG Resources, Inc. SEC filings.

                                       2


         (b)      The following unaudited pro forma financial information for
                  Headwaters Incorporated is included herein:

                  Introduction to Pro Forma Financial Information

                  Pro Forma Condensed Combined Balance Sheet as of June 30, 2002

                  Pro Forma Condensed Combined Statement of Income for the Year
                  Ended September 30, 2001

                  Pro Forma Condensed Combined Statement of Income for the Nine
                  Months Ended June 30, 2002

                  Notes to Pro Forma Condensed Combined Financial Information

         (c)      The following exhibits are included herein:

                  10.75**   Agreement and Plan of Merger between Headwaters and
                            Industrial Services Group, Inc. dated July 15, 2002

                  10.75.1** Form of Registration Rights Agreement between
                            Headwaters and the Stockholders of Industrial
                            Services Group, to be dated as of Closing

                  10.75.2   First Amendment to Agreement and Plan of Merger and
                            Equityholder Agreements among Headwaters, Industrial
                            Services Group, Inc. and Equityholders of Industrial
                            Services Group, Inc. dated September 19, 2002

                  10.76     Senior Credit Agreement for $175,000,000 among
                            Headwaters and various lenders dated
                            September 19, 2002

                  10.77     Loan Agreement for $20,000,000 between Headwaters
                            and Allied Capital Corporation dated
                            September 19, 2002

                  10.77.1   Participation Agreement among Allied Capital
                            Corporation, Headwaters and other Participants dated
                            September 19, 2002

                  99        Press release announcing acquisition of Industrial
                            Services Group, Inc.


                  **       Previously filed with Headwaters' Form 8-K filed
                           July 18, 2002.

                                       3


                                   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 hereunto duly authorized.



                                                 HEADWATERS INCORPORATED
                                                 -----------------------------
                                                 Registrant


Date: October 4, 2002                            /s/ Kirk A. Benson
                                                 -----------------------------
                                                 Kirk A. Benson
                                                 Chief Executive Officer and
                                                 Principal Executive Officer

                                       4


                         Industrial Services Group, Inc.

                        Consolidated Financial Statements

                       For the period ended June 30, 2002





                                      F-1



                        Industrial Services Group, Inc. and Subsidiaries
                              Condensed Consolidated Balance Sheets


                                                                               June 30,             December 31,
                                                                           2002 (Unaudited)             2001
                                                                            -------------          -------------
                                                                                             
 Assets

 Current assets:
    Cash and cash equivalents                                               $  10,928,663          $  17,724,156
    Accounts receivable:
       Trade, net of allowance for doubtful accounts of
          $555,000 and $440,000, respectively                                  35,597,861             25,302,639
       Retainage receivable                                                       235,749                257,989
       Other receivables                                                        1,156,622                692,828
    Deferred tax assets                                                           696,974                630,178
    Income tax receivable                                                         704,721                720,234
    Inventories                                                                 8,660,241              8,528,976
    Other current assets                                                        1,564,275              1,604,691
                                                                            -------------          -------------
 Total current assets                                                          59,545,106             55,461,691

 Property, plant and equipment, net of accumulated depreciation of
    $20,894,818 and $18,126,675, respectively                                  40,074,278             38,118,552
 Intangible assets, net                                                        80,580,597             83,329,546
 Goodwill                                                                      73,848,153             73,848,153
 Debt issuance costs, net                                                       3,385,691              3,855,350
 Other assets                                                                     123,596                 93,706
                                                                            -------------          -------------
 Total assets                                                               $ 257,557,421          $ 254,706,998
                                                                            =============          =============

                                                      F-2


                        Industrial Services Group, Inc. and Subsidiaries
                              Condensed Consolidated Balance Sheets


                                                                               June 30,             December 31,
                                                                           2002 (Unaudited)             2001
                                                                            -------------          -------------
                                                                                             
 Liabilities and shareholders' equity (deficit) Current liabilities:
    Accounts payable                                                        $  18,206,472          $  14,287,253
    Accrued liabilities:
       Payroll                                                                  1,549,933              2,775,553
       Interest                                                                 3,196,935              3,570,486
       Other                                                                    2,488,458              1,924,450
    Other current liabilities                                                   1,840,395              1,951,850
                                                                            -------------          -------------
 Total current liabilities                                                     27,282,193             24,509,592

 Long-term debt                                                               163,573,900            164,643,900
 Deferred tax liability                                                        35,204,335             35,726,641
 CMP note                                                                      15,180,704             13,676,310
 Debt discount                                                                 (1,430,827)            (1,966,086)
 Laidlaw note                                                                           -             24,807,465
 Other liabilities                                                                340,652                766,004
                                                                            -------------          -------------
     Total liabilities                                                        240,150,957            262,163,826

 Series A redeemable preferred stock, 50,050 shares authorized,
    issued and outstanding at June 30, 2002 and
    35,050 shares at December 31, 2001 respectively                             8,222,966              6,204,559
 Series B redeemable preferred stock, 50,000 shares
    authorized, issued and outstanding at June 30, 2002 and
    35,000 shares at December 31, 2001 respectively                             8,213,501              6,195,708

 Shareholders' equity (deficit):
    Class A common stock, $.01 par value; 500,000 shares
       authorized, 495,000 issued and outstanding                                   4,950                  4,950
    Class B common stock, $.01 par value; 500,000 shares
       authorized, none issued and outstanding                                          -                      -
    Additional paid in capital in excess of par value of
       common stock                                                             4,304,320              4,304,320
    Cumulative foreign currency translation adjustment                            (65,943)               (55,636)
    Retained deficit                                                           (3,273,330)           (24,110,729)
                                                                            -------------          -------------
 Total shareholders' equity (deficit)                                             969,997            (19,857,095)
                                                                            -------------          -------------
 Total liabilities and shareholders' equity (deficit)                       $ 257,557,421          $ 254,706,998
                                                                            =============          =============

                                                        F-3
See accompanying notes.



                        Industrial Services Group, Inc. and Subsidiaries
                    Unaudited Condensed Consolidated Statements of Operations



                                                                     Six Months Ended June 30,
                                                             -------------------------------------------
                                                                     2002               2001
                                                             -------------------------------------------
                                                                              
 Revenues:
    Product revenues                                           $     92,601,884     $     85,185,827
    Service revenues                                                 14,101,517           16,616,619
                                                               ----------------     ----------------
                                                                    106,703,401          101,802,446

 Costs and expenses:
    Cost of product revenues, excluding depreciation                 68,512,420           65,371,460
    Cost of service revenues, excluding depreciation                 10,662,565           11,006,878
    Depreciation and amortization                                     5,902,176            8,018,269
    New product development                                           1,120,030            1,164,818
    Selling, general and administrative expenses                     12,491,649           11,881,941
                                                               ----------------     ----------------
                                                                     98,688,840           97,443,366
                                                               ----------------     ----------------
 Operating income                                                     8,014,561            4,359,080

 Interest income                                                         83,011              242,190
 Interest expense                                                    (9,597,364)         (11,252,234)
 Other income                                                           483,201                9,891
                                                               ----------------     ----------------
 Loss before income taxes and extraordinary item                     (1,016,591)          (6,641,073)
 Income tax benefit                                                    (332,299)          (1,883,940)
                                                               ----------------     ----------------
 Loss before extraordinary item                                        (684,292)          (4,757,133)
 Gain on extinguishment of debt                                      22,557,891                    -
                                                               ----------------     ----------------
 Net income (loss)                                                   21,873,599           (4,757,133)
 Preferred dividends                                                 (1,036,200)            (751,958)
                                                               ----------------     ----------------
 Net income (loss) attributable to common shareholders         $     20,837,399     $     (5,509,091)
                                                               ================     ================

 Basic and diluted loss per share before extraordinary item
     and preferred dividends                                   $          (1.38)    $          (9.61)
                                                               ================     ================

 Basic and diluted net income (loss) per share attributable
     to common shareholders                                    $          42.10     $         (11.13)
                                                               ================     ================

 Weighted average number of shares used in calculating
   basic and diluted net income (loss) per share                        495,000              495,000
                                                               ================     ================



                                                 F-4
See accompanying notes.



                        Industrial Services Group, Inc. and Subsidiaries
                    Unaudited Condensed Consolidated Statements of Operations


                                                                   Three Months Ended June 30,
                                                               -------------------------------------
                                                                     2002                 2001
                                                               ----------------     ----------------
                                                                              
 Revenues:
    Product revenues                                           $     54,736,474     $     51,442,427
    Service revenues                                                  7,410,951            8,674,634
                                                               ----------------     ----------------
                                                                     62,147,425           60,117,061


 Costs and expenses:
    Cost of product revenues, excluding depreciation                 39,772,588           38,357,167
    Cost of service revenues, excluding depreciation                  5,718,352            5,599,820
    Depreciation and amortization                                     2,931,191            3,873,482
    New product development                                             470,321              569,600
    Selling, general and administrative expenses                      6,412,355            6,029,539
                                                               ----------------     ----------------
                                                                     55,304,807           54,429,608
                                                               ----------------     ----------------
 Operating income                                                     6,842,618            5,687,453

 Interest income                                                         24,675               94,377
 Interest expense                                                    (4,701,699)          (5,500,138)
 Other income (expense)                                                 200,836              (24,106)
                                                               ----------------     ----------------
 Income before income taxes                                           2,366,430              257,586
 Income tax expense                                                     970,458              461,611
                                                               ----------------     ----------------
 Net income (loss)                                                    1,395,972             (204,025)
 Preferred dividends                                                   (548,055)            (386,215)
                                                               ----------------     ----------------
 Net income (loss) attributable to common shareholders         $        847,917     $       (590,240)
                                                               ================     ================

 Basic and diluted income (loss) per share before
     preferred dividents                                       $           2.82     $          (0.41)
                                                               ================     ================

 Basic and diluted net income (loss) per share attributable
     to common shareholders                                    $           1.71     $          (1.19)
                                                               ================     ================

 Weighted average number of shares used in calculating
    basic and diluted net income (loss) per share                       495,000              495,000
                                                               ================     ================

                                                  F-5

See accompanying notes.




                Industrial Services Group, Inc. and Subsidiaries
         Unaudited Consolidated Statement of Comprehensive Income (Loss)


                                                               Six months ended June 30
                                                           ---------------------------------
                                                               2002                2001
                                                           ------------        -------------
                                                                         
 Net income (loss)                                         $ 21,873,599        $  (4,757,133)
 Other comprehensive income (loss) net of tax:
    Foreign currency translation adjustment                     (10,307)              25,361
                                                           ------------        -------------
 Comprehensive income (loss)                               $ 21,863,292        $  (4,731,772)
                                                           ============        =============

                                             F-6

See accompanying notes.




                        Industrial Services Group, Inc. and Subsidiaries
                 Unaudited Consolidated Statement of Comprehensive Income (Loss)



                                                              Three months ended June 30
                                                           ---------------------------------
                                                               2002                2001
                                                           ------------        -------------
                                                                         
 Net income (loss)                                         $  1,395,972        $    (204,025)
 Other comprehensive income (loss) net of tax:
    Foreign currency translation adjustment                      27,231               13,230
                                                           ------------        -------------
 Comprehensive income (loss)                               $  1,423,203        $    (190,795)
                                                           ============        =============

                                           F-7

See accompanying notes.




                        Industrial Services Group, Inc. and Subsidiaries
                    Unaudited Condensed Consolidated Statements of Cash Flows


                                                                             Six Months Ended June 30,
                                                                          -------------------------------
                                                                              2002               2001
                                                                          ------------       ------------
                                                                                       
 Operating activities
 Net income (loss)                                                        $ 21,873,599       $ (4,757,133)
 Adjustments to reconcile  net income  (loss) to net cash
   provided by (used in) operating activities:
      Depreciation and amortization                                          5,902,176          8,018,269
      Amortization of debt issuance costs                                      511,085            500,483
      Amortization of debt discount                                            535,259            543,411
      Noncash interest expense                                               1,751,738          2,309,032
      Gain on disposal of fixed assets                                        (133,958)            29,983
      Gain on extinguishment of debt                                       (22,557,891)                -
      Deferred income taxes                                                   (589,102)        (1,129,947)
      Changes in operating assets and liabilities:
          Receivables                                                      (10,736,776)        (9,857,279)
          Inventory                                                           (131,265)          (137,298)
          Other current and non-current assets                                  10,526           (195,367)
          Accounts payable and accrued expenses                              3,387,138          8,671,532
          Other current and non-current liabilities                           (121,294)         1,693,973
                                                                          ------------       ------------
 Net cash provided by (used in) operating activities                          (298,765)         5,689,659

 Investing activities

 Purchases of property, plant and equipment                                 (5,540,870)        (5,068,561)
 Proceeds on sale of property, plant and equipment                             565,875             81,340
                                                                          ------------       ------------
 Net cash used in investing activities                                      (4,974,995)        (4,987,221)

 Financing activities

 Cash contributions from shareholders                                        3,000,000                  -
 Payments on long-term debt                                                 (4,070,000)           (82,177)
 Payments on long-term liabilities                                            (400,000)                 -
 Debt issuance costs incurred                                                  (41,426)           (90,000)
                                                                          ------------       ------------
 Net cash used in financing activities                                      (1,511,426)          (172,177)

 Effect of exchange rate changes on cash and
     cash equivalents                                                          (10,307)            25,361
                                                                          ------------       ------------
 Net increase (decrease) in cash and cash equivalents                       (6,795,493)           555,622

 Cash and cash equivalents at beginning of period                           17,724,156          6,986,725
                                                                          ------------       ------------
 Cash and cash equivalents at end of period                               $ 10,928,663       $  7,542,347
                                                                          ============       ============

 Cash paid for interest                                                   $  6,620,900       $  8,167,467
                                                                          ============       ============
 Cash paid (received) for income taxes                                    $    215,135       $ (2,028,047)
                                                                          ============       ============

                                                   F-8

See accompanying notes.



                         INDUSTRIAL SERVICES GROUP, INC.

         NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

1.   Basis of Presentation

Industrial  Quality  Services,  Inc.  was formed in  September  1997 by Citicorp
Venture Capital,  Ltd. ("CVC") and certain members of the management team of JTM
Industries, Inc ("JTM") to acquire the stock of JTM from Laidlaw Transportation,
Inc. Pursuant to the acquisition, Industrial Quality Services acquired the stock
of JTM on  October  14,  1997  and JTM  became  a  wholly  owned  subsidiary  of
Industrial  Quality  Services.  In January,  1998,  Industrial  Quality Services
changed their name to Industrial Services Group, Inc. ("the Company").  In 1998,
JTM acquired the stock of Pozzolanic Resources, Inc. ("Pozzolanic"), Power Plant
Aggregates of Iowa, Inc. ("PPA"),  Michigan Ash Sales Company,  d.b.a. U. S. Ash
Company,  together with two affiliated companies,  U.S. Stabilization,  Inc. and
Flo Fil Company, Inc.,  (collectively,  "U.S. Ash"), and Fly Ash Products,  Inc.
("Fly Ash Products") (collectively, the "1998 Acquisitions").  Effective January
1, 1999, JTM, Pozzolanic, PPA, U.S. Ash, Fly Ash Products and their wholly owned
subsidiaries merged with and into ISG Resources ("ISG Resources") a newly formed
entity (the "Merger").  Pneumatic  Trucking,  Inc., a wholly owned subsidiary of
Michigan Ash Sales  Company,  was not merged into ISG  Resources.  Consequently,
Pneumatic became a wholly owned subsidiary of the ISG Resources.

In 1999,  ISG  Resources  acquired  the  stock  of Best  Masonry  & Tool  Supply
("Best"),  Mineral  Specialties,  Inc.  ("Specialties"),  Irvine  Fly Ash,  Inc.
("Irvine"), Lewis W. Osborne, Inc. ("Osborne"), United Terrazzo Supply Co., Inc.
("Terrazzo"),  and  Magna  Wall,  Inc.  ("Magna  Wall")  and  sold  all  of  the
outstanding stock of Pneumatic.

In 2000,  ISG  Canada  Limited,  Inc.  ("ISG  Canada")  was  formed and became a
wholly-owned  foreign  subsidiary  of ISG  Resources,  with  fly ash  operations
beginning in the second half of 2000. During 2000, ISG Resources acquired all of
the partnership interest of Don's Building Supply L.L.P. ("Don's),  acquired the
stock of Palestine  Concrete Tile Company,  Inc. and acquired  certain fixed and
intangible assets from Hanson Aggregates West, Inc. ("Hanson").

Each of the above  acquisitions  was accounted for under the purchase  method of
accounting and, accordingly,  the results of operations of each acquired company
have been included in the consolidated financial statements since the respective
date of acquisition.

These  financial  statements  reflect the  consolidated  financial  position and
results of  operations  of the Company and its wholly  owned  subsidiaries.  All
significant  intercompany  accounts and  transactions  have been  eliminated  in
consolidation.

In the opinion of management,  the accompanying unaudited condensed consolidated
financial  statements  reflect all  adjustments,  consisting of normal recurring
adjustments,  necessary to present  fairly the  financial  position,  results of
operations and cash flows of the Company,  for the respective periods presented.
The results of operations for an interim period are not  necessarily  indicative
of the results,  which may be expected for any other  interim  period or for the
year as a whole.

The  preparation  of  financial   statements,   in  conformity  with  accounting
principles generally accepted in the United States,  requires management to make
estimates  and  assumptions  that  affect  the  reported  amounts  of assets and
liabilities  and disclosure of contingent  assets and liabilities at the date of
the  financial  statements  and the  reported  amounts of revenues  and expenses
during the reporting period. Actual results could differ from those estimates.

Certain  information  and footnote  disclosures  normally  included in financial
statements presented in accordance with generally accepted accounting principles
have been condensed or omitted.  The accompanying  unaudited  interim  condensed
consolidated  financial  statements  should  be read  in  conjunction  with  the
consolidated  financial  statements  and  notes  in the Form  10-K  filed by ISG
Resources, Inc. for the fiscal year ended December 31, 2001.

The  consolidated  balance  sheet at December  31, 2001 was derived from audited
consolidated financial statements, but does not include all disclosures required
under generally accepted accounting principles.

2.       Description of Business

The Company operates two principal  business  segments:  coal combustion product
(CCP) management and building materials manufacturing and distribution.  The CCP
division  purchases,  removes  and sells fly ash and other  by-products  of coal
combustion  to producers and  consumers of building  materials and  construction
related products  throughout the United States.  The building materials division
manufactures and distributes masonry  construction  materials to residential and
commercial contractors primarily in Texas, California, Georgia and Florida.

3.       New Product Development Costs

New product development costs consist of scientific research and development and
market development  expenditures.  Expenditures of $414,085 and $510,883 for the
three  months  ended  June  30,  2002  and  June  30,  2001,  respectively,  and
expenditures  of $993,994 and  $1,027,518 for the six months ended June 30, 2002
and  June  30,  2001,  respectively,  were  made for  research  and  development
activities  covering  basic  scientific  research and  application of scientific
advances  to the  development  of  new  and  improved  products  and  processes.
Expenditures of $56,236 and $58,717 for the three months ended June 30, 2002 and
June 30, 2001,  respectively,  and expenditures of $126,036 and $137,300 for the
six months  ended June 30, 2002 and June 30, 2001,  respectively,  were made for
market development activities related to promising new and improved products and
processes  identified  during research and development  activities.  The Company
expenses all new product development costs as they are incurred.

4.       Inventories

The Company  accounts for inventory  balances  using the lower of cost or market
method on a first-in, first-out basis. Inventories consist of:

                                      F-9


                                           June 30,             December 31,
                                             2002                   2001
                                      ------------------ ---------------------
         Raw Materials                  $    999,119           $     958,796
         Finished Goods                    7,661,122               7,570,180
                                      ------------------ ---------------------
                                        $  8,660,241           $  8,528,976
                                      ================== =====================

5.   Goodwill and Other Intangible Assets

Effective January 1, 2002, the Company adopted SFAS No. 142, "Goodwill and Other
Intangible  Assets."  In  accordance  with  the  guidelines  of this  accounting
principle,  goodwill  and  indefinite  lived  intangible  assets  are no  longer
amortized, but will be assessed for impairment on at least an annual basis.

Pursuant to SFAS No. 142, the Company  completed its  reassessment of previously
recognized  intangible assets including evaluation of the remaining useful lives
of its  intangibles.  The Company  believes the useful  lives of its  intangible
assets are appropriate.

Provided below is a reconciliation of previously  reported  financial  statement
information  to  adjusted  amounts  that  reflect  the  elimination  of goodwill
amortization:


                                                          Six Months Ended                     Three Months Ended
                                                  June 30, 2002     June 30, 2001      June 30, 2002      June 30, 2001
                                                ----------------- ------------------ ------------------ ----------------
                                                                                             
Net income (loss) before extraordinary item:
  As reported                                    $     (684,292)   $   (4,757,133)    $    1,395,972     $   (204,025)
  Add back:
    Goodwill amortization net of tax                          -         2,027,704                  -        1,013,852
                                                 --------------    --------------     --------------     ------------
Adjusted income (loss)
  before extraordinary item                      $     (684,292)   $   (2,729,729)    $    1,395,972     $    809,827
                                                 --------------    --------------     --------------     ------------
Adjusted loss per share
  before extraordinary item                      $        (1.38)   $        (5.51)    $         2.82     $       1.64
                                                 --------------    --------------     --------------     ------------

Net income (loss):
  As reported                                    $   21,873,599    $   (4,757,133)    $    1,395,372     $   (204,025)
  Add back:
    Goodwill amortization net of tax                          -         2,027,704                  -        1,013,852
                                                 --------------    --------------     --------------     ------------

Adjusted net income (loss)                           21,873,599        (2,729,729)         1,395,372          809,827
Preferred dividends                                  (1,036,200)         (751,958)          (548,055)        (386,215)
                                                 --------------    --------------     --------------     ------------
Adjusted net income (loss) attributable
  to common shareholders                         $   20,837,399    $   (3,481,687)    $      847,317     $    423,612
                                                 ==============    ==============     ==============     ============

Adjusted net income (loss) per share             $        42.10    $        (7.03)    $         1.71     $       0.86
                                                 ==============    ==============     ==============     ============

                                                         F-10



The following table as of June 30, 2002, summarizes the gross carrying value and
accumulated  amortization  for each major class of intangible asset based on the
Company's  reassessment  of previously  recognized  intangible  assets and their
remaining amortization lives in accordance with the adoption of SFAS No. 142:


                                     June 30, 2002                     December 31, 2001
                         Gross Carrying       Accumulated       Gross Carrying    Accumulated        Amortizable
                             Amount           Amortization          Amount        Amortization           Life
                        ------------------ ------------------- ----------------- --------------- -------------------
                                                                                     
Supply contracts          $100,148,521         $21,858,228       $100,227,490      $19,402,631      10 to 20 years
Patents                      2,446,584             606,280          2,446,584          541,897         19 years
Licenses                     1,000,000             550,000          1,000,000          400,000         40 months
                        ------------------ ------------------- ----------------- ---------------
Total amortizable
  intangible assets       $103,595,105         $23,014,508       $103,674,074      $20,344,528
                        ================== =================== ================= ===============


The total  intangible  amortization  expense for these assets for the six months
ended June 30, 2002 and 2001 was $2.8 million and $3.2 million, respectively.

The  estimated  amortization  expense for the next five fiscal  years  beginning
January 1, 2002 is as follows:

     For the year ended December 31, 2002                  $5,497,213
     For the year ended December 31, 2003                   5,497,213
     For the year ended December 31, 2004                   5,197,213
     For the year ended December 31, 2005                   5,197,213
     For the year ended December 31, 2006                   5,197,213

The  transitional  accounting  provisions of SFAS No. 142 require the Company to
identify and measure  goodwill  impairment at each of its reporting  units.  For
purposes of this measurement,  the Company identified three reporting units. The
Company is in the process of evaluating the impairment, if any, of the goodwill,
in these three reporting units. Under the transitional  accounting provisions of
SFAS No.  142,  the Company is required  to  complete  Step 1  (determining  and
comparing the fair value of the reporting units to the reporting units' carrying
value) of the  transitional  impairment  test within six months of adopting SFAS
No.  142.  If Step 1 of the  goodwill  impairment  test is  failed in any of the
reporting  units,  thereby  indicating  a potential  impairment,  the Company is
required  to  complete  Step 2 of the test for  that  reporting  unit as soon as
possible,  but no later  than  the end of 2002.  Under  Step 2, the  Company  is
required to  calculate  the implied fair value of goodwill and compare it to the
carrying value of goodwill.

The  Company  completed  Step 1  described  above,  which  indicated  a possible
impairment.  The Company is therefore required to complete Step 2, however, as a
result of the  pending  merger of the  Company  as  described  further in note 9
below, the completion of Step 2 in the process is still pending.

                                      F-11


6.     Long-term Debt

Long-term debt consists of the following:

                                                     June 30,       December 31,
                                                       2002             2001
                                                  --------------- --------------
         10% Senior Subordinated Notes due 2008   $100,000,000    $100,000,000
         Secured Credit Facility                    63,573,900      64,643,900
         CMP Note                                   15,180,704      13,676,310
         Debt Discount                              (1,430,827)     (1,966,086)
         Laidlaw Note                                        -      24,807,465
                                                  --------------- --------------
                                                  $177,323,777     $201,161,589
                                                  =============== ==============

At June 30,  2002,  $63,573,900  million  of the  Secured  Credit  Facility  was
outstanding, with no amount being unused and available.

On January 11, 2002,  an offer to retire the Laidlaw Note for $3 million in cash
to be  paid  on  January  30,  2002  was  made to  American  National  Insurance
Corporation, the current holder of the notes. The offer was accepted by American
National  and  payment was made on the note on January  30,  2002.  The note was
retired and a gain on  extinguishment  was  recognized  during the quarter ended
March 31, 2002 in the amount of  approximately  $22,560,000.  The  extraordinary
gain did not result in additional  tax expense for the quarter  because the gain
was  treated  as a  reduction  of the  original  purchase  price  of JTM for tax
purposes,  which has  created a  permanent  tax  difference.  As a result of the
different  treatment of the gain for book and tax  purposes,  the  extraordinary
gain  was  not  stated  net  of tax  effect  on the  accompanying  statement  of
operations.

7.     Recent Accounting Pronouncements

In July 2001,  the  Financial  Accounting  Standards  Board issued  Statement of
Financial  Accounting Standards (SFAS) No. 143, "Accounting for Asset Retirement
Obligations".  SFAS No. 143 requires alternative  accounting treatment of assets
which are in the process of  retirement.  The Company was required to adopt SFAS
No. 143 effective January 1, 2002. As expected,  there was no significant effect
on results of operations or financial position.

In August 2001, the Financial  Accounting  Standards  Board issued  Statement of
Financial Accounting Standards (SFAS) No. 144, "Accounting for the Impairment or
Disposal of Long-Lived Assets".  This Statement  addresses financial  accounting
and  reporting  for the  impairment  or  disposal  of  long-lived  assets.  This
Statement  supersedes FASB Statement No. 121,  "Accounting for the Impairment of
Long-Lived  Assets  and  for  Long-Lived  Assets  to be  Disposed  Of ," and the
accounting  and  reporting  provisions  of APB  Opinion No. 30,  "Reporting  the
Results of  Operations  and  Reporting the Effects of Disposal of a Segment of a
Business,  and  Extraordinary,  Unusual,  and Infrequently  Occurring Events and
Transactions,"  for the  disposal  of a segment  of a  business  (as  previously
defined  in that  opinion).  The  Company  was  required  to adopt  SFAS No. 144
effective January 1, 2002. The Company currently has no indicators of impairment
of any of its  long-lived  assets.  As such,  adoption of this  Statement had no
impact on the Company's financial statements.

                                      F-12


8.    Reportable Segments

As discussed in note 2, the Company operates in two reportable segments: the CCP
division and the  manufacturing  products  division.  The CCP division  consists
primarily  of three  operating  regions  that  manage and  market  CCPs in North
America.  The  manufacturing  products  division consists of six legal entities:
Best, Osborne,  Terrazzo,  Magna Wall,  Palestine,  and Don's. The Company's two
reportable  segments are managed separately based on fundamental  differences in
their operations.

The Company  evaluates  financial  performance based on earnings from operations
before interest expense, income taxes, depreciation,  and amortization (EBITDA).
The  Company  derives a majority  of its  revenues  from CCP sales and the chief
operating  decision  makers  rely on  EBITDA to assess  the  performance  of the
segments and make  decisions  about  resources to be allocated to the  segments.
Accordingly,  EBITDA is  included in the  information  reported  below.  Certain
expenses are  maintained at the  Company's  corporate  headquarters  and are not
allocated to the segments.  Such expenses  primarily  include interest  expense,
corporate   overhead  costs,  and  certain   non-recurring   gains  and  losses.
Inter-segment  sales are generally  accounted for at cost and are  eliminated in
consolidation.

Amounts  included in the "Other" column include  financial  information  for the
Company's corporate, R&D and other administrative business units.

In adopting  SFAS No. 142, the Company  reevaluated  the  allocation  of certain
intangible  assets to the  segments.  Information  for the three  months and six
months  ended  June 30,  2001 has  been  restated  to  conform  to this  revised
presentation.

                                      F-13


Information about reportable segments, and reconciliation of such information to
the consolidated  totals as of  and  for the  three months and  six months ended
June 30, 2002 and June 30, 2001, is as follows:


                                                            Manufacturing                         Consolidated
                                             CCP               Products             Other            Total
                                        --------------      --------------      -------------    -------------
                                                                                     
Three months ended 6/30/02:
Revenue                                 $   49,202,249      $   12,873,341      $      71,835    $  62,147,425

EBITDA                                      11,226,580           1,406,176        (2,633,436)        9,999,320
Depreciation and
   Amortization                              2,678,150             180,746             72,295        2,931,191
Goodwill                                    44,832,605          29,015,548                  -       73,848,153
Total Assets                               207,515,037          48,325,588          1,716,796      257,557,421
Expenditures for PP&E                        2,422,364              60,075                  -        2,482,439

Three months ended 6/30/01:
Revenue                                 $   46,697,505      $   13,360,252      $      59,302    $  60,117,059
EBITDA                                      10,371,545           1,576,359         (2,316,698)       9,631,206
Depreciation and
   Amortization                              3,116,242             658,924             98,316        3,873,482
Goodwill                                    46,028,319          29,865,658                  -       75,893,977
Total Assets                               208,089,809          48,963,708          3,346,798      260,400,315
Expenditures for PP&E                        1,402,516           1,097,633             66,851        2,567,000

Six months ended 6/30/02:
Revenue                                 $   82,217,384      $   24,345,027      $     140,990    $ 106,703,401
EBITDA                                      17,160,176           2,558,719         (5,235,946)      14,482,949
Depreciation and
   Amortization                              5,390,203             366,546            145,427        5,902,176
Goodwill                                    44,832,605          29,015,548                  -       73,848,153
Total Assets                               207,515,037          48,325,588          1,716,796      257,557,421
Expenditures for PP&E                        5,183,996             186,323            170,551        5,540,870

Six months ended 6/30/01:
Revenue                                 $   76,802,042      $   24,877,799      $     122,605    $ 101,802,446
EBITDA                                      15,253,285           2,405,590         (5,029,445)      12,629,430
Depreciation and
   Amortization                              6,584,907           1,272,849            160,513        8,018,269
Goodwill                                    46,028,319          29,865,658                  -       75,893,977
Total Assets                               208,089,809          48,963,708          3,346,798      260,400,315
Expenditures for PP&E                        3,459,800           1,421,844            186,917        5,068,561


                                      F-14


9.       Subsequent Events

On July 16, 2002,  Industrial Services Group, Inc. signed a definitive agreement
with Headwaters, Inc. to be acquired by Headwaters in exchange for consideration
which is currently estimated to be approximately $246,000,000 consisting of cash
of  approximately  $31,000,000,  the issuance of 2,000,000  shares of Headwaters
common  stock  with an  assumed  value  of  $30,000,000,  cash  requirements  of
approximately  $181,000,000  to retire ISG and ISG  Resources  debt,  and direct
costs  to  be  incurred  by  Headwaters  to  consummate   the   acquisition   of
approximately  $4,000,000.  It is anticipated  that the  transaction  will close
during the year 2002. Further information regarding the transaction is available
in documents  filed with the Securities and Exchange  Commission on Form 8-K, on
July 18, 2002. After the merger,  Headwaters,  Inc. will allocate goodwill among
the reporting units based on fair market value at the close of the merger.

On July 2, 2002,  as part of an amendment  to an  employment  agreement,  and in
connection with the  aforementioned  merger agreement,  an agreement was reached
with an  employee  who had  earlier  been  granted a phantom  stock  right.  The
agreement is to waive the phantom  stock right  contingent  upon the  successful
completion of the merger.

10.      Condensed Consolidating Financial Information

The Company's debt facilities are guaranteed by domestic  subsidiaries only. ISG
Canada  was  formed  in  2000  and  had  minimal  operations  in  comparison  to
consolidated results.  Because ISG Canada's operations increased during 2001, it
is no longer  considered a "minor"  subsidiary as defined under  Regulation  S-X
Rule 3-10. As such, the Company is required to disclose condensed  consolidating
financial information in its periodic reports.

                                      F-15


The condensed consolidating balance sheet as of June 30, 2002 is as follows:


                                                                              ISG             ISG         Manufactured     ISG
                                        Consolidated      Eliminations        Inc.         Resources         Products     Canada
                                        ------------      ------------     -----------    ------------     -----------   ----------
                                                                                                       
Assets
Current assets:
Cash and cash equivalents               $ 10,928,663      $          -     $         -    $  9,797,987     $   857,535   $  273,141
Accounts receivable                       36,990,232                 -               -      29,915,336       6,776,796      298,100
Inventories                                8,660,241                 -               -       3,483,347       4,970,537      206,357
Other current assets                       2,965,970                 -         704,721       2,079,481         181,768            -
                                        ------------      ------------     -----------    ------------     -----------   ----------
Total current assets                      59,545,106                 -         704,721      45,276,151      12,786,636      777,598

Property, plant and equipment             40,074,278                 -               -      32,722,889       6,523,404      827,985

Investment in ISG Resources                        -       (25,266,422)     25,266,422               -               -            -
Intangible assets, net                    80,580,597                 -               -      80,580,597               -            -
Goodwill                                  73,848,153                 -               -      44,832,605      29,015,548            -
Debt issuance costs                        3,385,691                 -         142,375       3,243,316               -            -
Investment in subsidiaries                         -       (47,769,336)              -      47,769,336               -            -
Other assets                                 123,596                 -               -         123,596               -            -
                                        ------------      ------------     -----------    ------------     -----------   ----------
Total assets                            $257,557,421      $(73,035,758)    $26,113,518    $254,548,490     $48,325,588   $1,605,583
                                        ============      ============     ===========    ============     ===========   ==========

                                                                       F-16


                                                                              ISG             ISG         Manufactured     ISG
                                        Consolidated      Eliminations        Inc.         Resources         Products     Canada
                                        ------------      ------------     -----------    ------------     -----------   ----------
                                                                                                       
Liabilities and shareholders' equity
Current liabilities:
Accounts payable                        $ 18,206,472      $          -     $         -    $ 15,570,660     $ 2,635,812   $        -
Accrued expenses                           7,235,326                 -         686,505       6,312,313         236,508            -
Other current liabilities                  1,840,395                 -        (932,884)      1,923,490         827,425       22,364
                                        ------------      ------------     -----------    ------------     -----------   ----------

Total current liabilities                 27,282,193                 -        (246,379)     23,806,463       3,699,745       22,364

Long-term debt                           177,323,777                 -      13,749,877     163,573,900               -            -
Deferred tax liabilities                  35,204,335                 -               -      35,204,335               -            -
Payable to Parent                                  -                 -      (4,796,444)      4,796,444               -            -
Intercompany account payable                       -            28,959               -       1,675,282      (2,881,549)   1,177,308
Other liabilities                            340,652                 -               -         159,701         180,951            -
                                        ------------      ------------     -----------    ------------     -----------   ----------
    Total liabilities                    240,150,957            28,959       8,707,054     229,216,125         999,147    1,199,672

Series A redeemable preferred stock        8,222,966                 -       8,222,966               -               -            -
Series B redeemable preferred stock        8,213,501                 -       8,213,501               -               -            -

Shareholders' equity:
Common stock                                   4,950       (34,773,546)          4,950      34,745,050          28,496            -
Cumulative translation adjustment            (65,943)           17,609         (65,943)              -               -      (17,609)
Additional paid in capital                 4,304,320       (41,200,074)      4,304,320               -      40,552,264      647,810
Retained (deficit) earnings               (3,273,330)        2,891,294      (3,273,330)     (9,412,685)      6,745,681     (224,290)
                                        ------------      ------------     -----------    ------------     -----------   ----------

Total shareholders' equity                   969,997       (73,064,717)        969,997      25,332,365      47,326,441      405,911
                                        ------------      ------------     -----------    ------------     -----------   ----------
Total liabilities and shareholders'
   equity                               $257,557,421      $(73,035,758)    $26,113,518    $254,548,490     $48,325,588   $1,605,583
                                        ============      ============     ===========    ============     ===========   ==========

                                                                 F-17

The condensed consolidating balance sheet as of December 31, 2001 is as follows:

                                                                              ISG             ISG         Manufactured     ISG
                                        Consolidated      Eliminations        Inc.         Resources         Products     Canada
                                        ------------      ------------     -----------    ------------     -----------   ----------
                                                                                                       
Assets
Current assets:
Cash and cash equivalents               $ 17,724,156      $          -     $         -    $ 17,002,493     $   477,075   $  244,588
Accounts receivable                       26,253,456                 -               -      20,182,923       5,875,011      195,522
Inventories                                8,528,976                 -               -       3,923,243       4,544,632       61,101
Other current assets                       2,955,103           (10,872)        731,106       2,095,752         139,117            -
                                        ------------      ------------     -----------    ------------     -----------   ----------
Total current assets                      55,461,691           (10,872)        731,106      43,204,411      11,035,835      501,211

Property, plant and equipment             38,118,552                 -               -      30,533,497       6,745,493      839,562

Investment in ISG Resources                        -       (24,555,023)     24,555,023               -               -            -
Intangible assets, net                   157,177,699                 -               -     128,162,151      29,015,548            -
Debt issuance costs                        3,855,350                 -         167,875       3,687,475               -            -
Investment in subsidiaries                         -       (45,476,666)              -      45,476,666               -            -
Other assets                                  93,706                 -               -          93,706               -            -
                                        ------------      ------------     -----------    ------------     -----------   ----------
Total assets                            $254,706,998      $(70,042,561)    $25,454,004    $251,157,906     $46,796,876   $1,340,773
                                        ============      ============     ===========    ============     ===========   ==========

                                                                    F-18


                                                                              ISG             ISG         Manufactured     ISG
                                        Consolidated      Eliminations        Inc.         Resources         Products     Canada
                                        ------------      ------------     -----------    ------------     -----------   ----------
                                                                                                       
Liabilities and shareholders'
  equity (deficit)
Current liabilities:
Accounts payable                        $ 14,287,253      $          -     $         -    $ 12,411,354     $ 1,875,899   $        -
Accrued expenses                           8,270,489                 -       1,189,587       6,875,103         205,799            -
Other current liabilities                  1,951,850           (10,872)              -       1,427,299         505,484       29,939
                                        ------------      ------------     -----------    ------------     -----------   ----------
Total current liabilities                 24,509,592           (10,872)      1,189,587      20,713,756       2,587,182       29,939

Long-term debt                           201,161,589                 -      36,517,689     164,643,900               -            -
Deferred tax liabilities                  35,726,641                 -               -      35,726,641               -            -
Payable to Parent                                  -                 -      (4,796,444)      4,796,444               -            -
Intercompany account payable                       -            23,201               -          27,888      (1,120,636)   1,069,547
Other liabilities                            766,004                 -               -         638,618         127,386            -
                                        ------------      ------------     -----------    ------------     -----------   ----------
     Total liabilities                   262,163,826            12,329      32,910,832     226,547,247       1,593,932    1,099,486

Series A redeemable preferred stock        6,204,559                 -       6,204,559               -               -            -
Series B redeemable preferred stock        6,195,708                 -       6,195,708               -               -            -

Shareholders' equity (deficit):
Common stock                                   4,950       (34,773,546)          4,950      34,745,050          28,496            -
Cumulative translation adjustment            (55,636)           16,807         (55,636)              -               -      (16,807)
Additional paid in capital                 4,304,320       (40,960,169)      4,304,320               -      40,533,259      426,910
Retained (deficit) earnings              (24,110,729)        5,662,018     (24,110,729)    (10,134,391)      4,641,189     (168,816)
                                        ------------      ------------     -----------    ------------     -----------   ----------
Total shareholders' equity (deficit)     (19,857,095)      (70,054,890)    (19,857,095)     24,610,659      45,202,944      241,287
                                        ------------      ------------     -----------    ------------     -----------   ----------
Total liabilities and shareholders'
  equity (deficit)                      $254,706,998      $(70,042,561)    $25,454,004    $251,157,906     $46,796,876   $1,340,773
                                        ============      ============     ===========    ============     ===========   ==========

                                                                    F-19


The condensed  consolidating  statement of  operations  for the six months ended
June 30, 2002 is as follows:

                                                                              ISG             ISG         Manufactured     ISG
                                        Consolidated      Eliminations        Inc.         Resources         Products     Canada
                                        ------------      ------------     -----------    ------------     -----------   ----------
                                                                                                       
Revenues                                $106,703,401      $          -     $         -     $81,915,920     $24,351,199   $  436,282
Costs and expenses:
Cost of products and services,
  excluding depreciation                  79,174,985                 -               -      59,212,166      19,557,672      405,147
Depreciation and amortization              5,902,176                 -               -       5,485,323         366,546       50,307
Selling, general and administrative
  expenses                                12,491,649                 -               -      10,065,531       2,402,874       23,244
New product development                    1,120,030                 -               -       1,120,030               -            -
                                        ------------      ------------     -----------    ------------     -----------   ----------
                                          98,688,840                 -               -      75,883,050      22,327,092      478,698
                                        ------------      ------------     -----------    ------------     -----------   ----------
Operating income (loss)                    8,014,561                 -               -       6,032,870       2,024,107      (42,416)

Equity interest in subsidiary income               -        (1,327,312)       (721,706)      2,049,018               -            -
Interest  income (expense)                (9,514,353)                -      (2,312,496)     (7,210,999)          9,142            -
Other income (expense) net                   483,201                 -               -         425,016          71,243      (13,058)
                                        ------------      ------------     -----------    ------------     -----------   ----------
Income (loss) before income taxes
  and extraordinary item                  (1,016,591)       (1,327,312)     (3,034,202)      1,295,905       2,104,492      (55,474)
Income tax (benefit) expense                (332,299)                -        (906,498)        574,199               -            -
                                        ------------      ------------     -----------    ------------     -----------   ----------
Income (loss) before extraordinary
  item                                      (684,292)       (1,327,312)     (2,127,704)        721,706       2,104,492      (55,474)
Gain on extinguishment of debt            22,557,891                 -      22,557,891               -               -            -
                                        ------------      ------------     -----------    ------------     -----------   ----------
Net income (loss)                         21,873,599        (1,327,312)     20,430,187         721,706       2,104,492      (55,474)
Preferred dividends                       (1,036,200)                -      (1,036,200)              -               -            -
                                        ------------      ------------     -----------    ------------     -----------   ----------
Net income (loss) attributable to
  common shareholders                   $ 20,837,399      $ (1,327,312)    $19,393,987    $    721,706     $ 2,104,492   $  (55,474)
                                        ============      ============     ===========    ============     ===========   ==========

                                                              F-20


The condensed  consolidating  statement of  operations  for the six months ended
June 30, 2001 is as follows:

                                                                              ISG             ISG         Manufactured     ISG
                                        Consolidated      Eliminations        Inc.         Resources         Products     Canada
                                        ------------      ------------     -----------    ------------     -----------   ----------
                                                                                                       
Revenues                                $101,802,446      $    (88,808)    $         -    $ 76,190,317     $24,945,733   $  755,204
                                        ------------      ------------     -----------    ------------     -----------   ----------
Costs and expenses:
Cost of products and services sold,
  excluding depreciation                  76,378,338                 -               -      55,492,567      20,199,306      686,465
Depreciation and amortization              8,018,269                 -               -       6,745,420       1,228,014       44,835
Selling, general, and administrative
  expenses                                11,881,941                 -               -       9,765,671       2,093,194       23,076
New product development                    1,164,818                 -               -       1,164,818               -            -
                                        ------------      ------------     -----------    ------------     -----------   ----------
                                          97,443,366                 -               -      73,168,476      23,520,514      754,376
                                        ------------      ------------     -----------    ------------     -----------   ----------
Operating income                           4,359,080           (88,808)              -       3,021,841       1,425,219          828

Equity interest in subsidiary income               -         1,588,386      (3,007,344)      1,418,958               -            -
Interest expense                         (11,010,044)                -      (2,877,943)     (8,122,314)         (9,787)           -
Other income (expense)  net                    9,891            88,808               -         (81,615)          2,698            -
                                        ------------      ------------     -----------    ------------     -----------   ----------
Income (loss) before income tax           (6,641,073)        1,588,386      (5,885,287)     (3,763,130)      1,418,130          828
Income tax benefit                        (1,883,940)                -      (1,128,154)       (755,786)              -            -
                                        ------------      ------------     -----------    ------------     -----------   ----------
Net income (loss)                         (4,757,133)        1,588,386      (4,757,133)     (3,007,344)      1,418,130          828
Preferred dividends                         (751,958)                -        (751,958)              -               -            -
                                        ------------      ------------     -----------    ------------     -----------   ----------
Net income (loss) attributable to
  common shareholders                   $ (5,509,091)     $  1,588,386     $(5,509,091)   $ (3,007,344)    $ 1,418,130   $      828
                                        ============      ============     ===========    ============     ===========   ==========

                                                                    F-21



The  condensed  consolidating  statement  of cash flow  information  for the six
months ended June 30, 2002 is as follows:

                                                                              ISG             ISG         Manufactured     ISG
                                        Consolidated      Eliminations        Inc.         Resources         Products     Canada
                                        ------------      ------------     -----------    ------------     -----------   ----------
                                                                                                       
Net cash used in operating activities   $   (298,765)     $    326,119     $         -    $   (231,231)    $  (133,079)  $ (260,574)
Net cash provided by (used in)
  investing activities                    (4,974,995)         (316,615)              -     (5,461,848)         513,537      289,931

Net cash used in financing activities     (1,511,426)                -               -      (1,511,426)              -            -

Effect of exchange rate changes on
  cash and cash equivalents                  (10,307)           (9,504)              -               -               -         (803)
                                        ------------      ------------     -----------    ------------     -----------   ----------

Net increase (decrease) in cash and
  cash equivalents                        (6,795,493)                -               -      (7,204,505)        380,458       28,554

Cash and cash equivalents at
  beginning of period                     17,724,156                 -               -      17,002,493         477,075      244,588
                                        ------------      ------------     -----------    ------------     -----------   ----------
Cash and cash equivalents at end of
  period                                $ 10,928,663      $          -     $         -    $  9,797,988     $   857,533   $  273,142
                                        ============      ============     ===========    ============     ===========   ==========

                                                                     F-22


The  condensed  consolidating  statement  of cash flow  information  for the six
months ended June 30, 2001 is as follows:

                                                                              ISG             ISG         Manufactured     ISG
                                        Consolidated      Eliminations        Inc.         Resources         Products     Canada
                                        ------------      ------------     -----------    ------------     -----------   ----------
                                                                                                       
Net cash provided by (used in)
  operating activities                  $  5,689,659      $    127,188     $         -    $  6,547,079     $  (819,604)  $ (165,004)

Net cash provided by (used in)
  investing activities                    (4,987,221)         (156,267)              -      (5,698,484)        490,326      377,204

Net cash used in financing activities       (172,177)                                         (172,177)

Effect of exchange rate changes on
  cash and cash equivalents                   25,361            29,079               -               -                       (3,718)
                                        ------------      ------------     -----------    ------------     -----------   ----------

Net increase (decrease) in cash and
  cash equivalents                           555,622                 -               -         676,418        (329,278)     208,482

Cash and cash equivalents at
  beginning of period                      6,986,725                 -               -       5,954,992       1,054,079      (22,346)
                                        ------------      ------------     -----------    ------------     -----------   ----------
Cash and cash equivalents at end
  of period                             $  7,542,347      $          -     $         -    $  6,631,410     $   724,801   $  186,136
                                        ============      ============     ===========    ============     ===========   ==========

                                                                        F-23




                             HEADWATERS INCORPORATED
                  INTRODUCTION TO UNAUDITED PRO FORMA CONDENSED
                         COMBINED FINANCIAL INFORMATION
                     (dollar and share amounts in thousands)

On September 19, 2002, Headwaters acquired 100% of the common stock of
Industrial Services Group, Inc. ("ISG") and redeemed all of its outstanding
preferred stock. ISG is headquartered in Salt Lake City, Utah and is engaged
primarily in the management of long-term contracts for coal combustion products
and the distribution of related building materials and construction products
throughout the United States through its wholly-owned subsidiary, ISG Resources,
Inc. Total consideration at closing is currently estimated to be approximately
$258,056 consisting of cash of $32,700, the issuance of 2,100 shares of
Headwaters common stock with an assumed value of $32,718 (market value at
closing was approximately $26,000), cash payments of $184,638 to retire ISG debt
and related accrued interest, and direct costs incurred by Headwaters to
consummate the acquisition of approximately $8,000.

In order to obtain the cash necessary to acquire ISG and retire the ISG debt,
Headwaters issued $175,000 of new debt consisting of $155,000 of senior secured
debt with a five-year term and a floating interest rate and $20,000 of
subordinated debt with an approximate five-year term and a fixed interest rate.
ISG management participated in one-half or $10,000 of the subordinated debt.
Total cash proceeds from the issuance of new debt, net of debt discounts, was
$169,950. Headwaters incurred approximately $6,200 of debt issuance costs to
place the new debt, which has a combined effective weighted average interest
rate of approximately 9.0%.

The value of Headwaters' 2,100 shares of common stock issued was determined
using the average market price of Headwaters' stock over a five-day period,
consisting of the day the terms of acquisition were agreed to and announced and
two days prior to and two days subsequent to that day. This average price was
$15.58 per share.

The ISG acquisition will be accounted for using the purchase method of
accounting as required by Statement of Financial Accounting Standards No.141,
"Business Combinations." Assets acquired and liabilities assumed will be
recorded at their estimated fair values as of September 19, 2002. For purposes
of the accompanying pro forma information, approximately $109,000 of the
estimated purchase price was allocated to identifiable intangible assets
consisting primarily of contracts with an estimated combined useful life of 20
years. The remaining purchase price not attributable to the tangible and
identifiable intangible assets will be allocated to goodwill. The actual
consideration as well as the allocation of the amount of such consideration will
likely differ from that reflected in these unaudited pro forma condensed
combined financial statements after final valuations and other procedures have
been completed.

The following pro forma combined balance sheet gives effect to the acquisition
of ISG as if it had been completed as of June 30, 2002 and combines the
historical June 30, 2002 balance sheets for both Headwaters and ISG. The pro
forma combined statements of operations for the year ended September 30, 2001
and the nine months ended June 30, 2002 give effect to the acquisition as if it
had occurred on October 1, 2000. The pro forma combined statement of operations
for the year ended September 30, 2001 combines Headwaters' historical results
for the year ended September 30, 2001 with ISG's historical results for the year
ended December 31, 2001. The pro forma combined statement of operations for the
nine months ended June 30, 2002 combines both Headwaters' and ISG's historical
results for that nine month period. Accordingly, ISG's historical results for
the three-month period from October 1, 2001 to December 31, 2001 are included in
both the pro forma combined statement of operations for the year ended September
30, 2001 and the pro forma combined statement of operations for the nine months
ended June 30, 2002.

The pro forma combined financial statements are presented for illustrative
purposes only. Such information does not purport to be indicative of the results
of operations or financial position which actually would have resulted had the
acquisition occurred on the dates indicated, nor is it indicative of the results
that may be expected in future periods. The pro forma adjustments are based upon
information and assumptions available at the time of filing this Form 8-K. The
pro forma information should be read in conjunction with the accompanying notes
thereto.

                                      F-24



                                                  HEADWATERS INCORPORATED
                                    UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEET
                                                     as of June 30, 2002

                                                                             Historical
                                                                   ----------------------------       Pro Forma        Pro Forma
(thousands of dollars)                                               Headwaters        ISG           Adjustments        Combined
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
ASSETS

Current assets:
      Cash, cash equivalents and short-term investments               $  29,230      $  10,929        $(224,783) A
                                                                                                        169,950  B
                                                                                                         (6,200) C
                                                                                                         20,874  D      $       -
      Trade receivables, net                                             21,650         35,598                             57,248
      Inventories                                                           231          8,660                              8,891
      Other current assets                                                1,989          4,358                              6,347
                                                                      ---------      ---------        ---------         ---------
           Total current assets                                          53,100         59,545          (40,159)           72,486
                                                                      ---------      ---------        ---------         ---------

Property, plant and equipment, net of accumulated depreciation            2,798         40,074                             42,872

Other assets:
      Notes and accrued interest receivable                               5,584                                             5,584
      Deferred income taxes                                               1,049                          (1,049) E              -
      Intangible assets, net of accumulated amortization                 10,141         80,580           28,420  F        119,141
      Goodwill                                                            4,258         73,848          (73,848) G
                                                                                                        111,073  H        115,331
      Other assets                                                        4,179          3,510            6,200  C
                                                                                                         (3,386) I
                                                                                                           (555) J          9,948
                                                                      ---------      ---------        ---------         ---------
           Total other assets                                            25,211        157,938           66,855           250,004
                                                                      ---------      ---------        ---------         ---------

           Total assets                                               $  81,109      $ 257,557        $  26,696         $ 365,362
                                                                      =========      =========        =========         =========

                                                            (continued)

                                                      See accompanying notes.

                                                               F-25


                                               HEADWATERS INCORPORATED
                           UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEET, continued
                                                 as of June 30, 2002

                                                                             Historical
                                                                   ----------------------------       Pro Forma        Pro Forma
(thousands of dollars)                                               Headwaters        ISG           Adjustments        Combined
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
      Accounts payable                                                   $2,772        $18,206                            $20,978
      Accrued personnel costs                                             4,314          1,550                              5,864
      Other accrued liabilities                                           7,633          7,526          $(3,197) K         11,962
      Current portion of unamortized non-refundable license fees          2,866                                             2,866
      Short-term debt                                                        81                          15,500  B
                                                                                                         20,874  D         36,455
                                                                      ---------      ---------        ---------         ---------
           Total current liabilities                                     17,666         27,282           33,177            78,125
                                                                      ---------      ---------        ---------         ---------

Long-term liabilities:
      Long-term debt                                                         88        177,324         (177,324) L
                                                                                                        154,450  B        154,538
      Deferred income taxes                                                             35,204           (1,049) E
                                                                                                          2,130  M         36,285
      Other long-term liabilities                                           297            341                                638
      Unamortized non-refundable license fees                             5,305                                             5,305
                                                                      ---------      ---------        ---------         ---------
           Total long-term liabilities                                    5,690        212,869          (21,793)          196,766
                                                                      ---------      ---------        ---------         ---------
           Total liabilities                                             23,356        240,151           11,384           274,891
                                                                      ---------      ---------        ---------         ---------

      Redeemable preferred stock                                                        16,436          (16,436) N              -

Stockholders' equity:
      Common stock                                                           25              5                2  O
                                                                                                             (5) P             27
      Capital in excess of par value                                     92,902          4,304           32,716  O
                                                                                                         (4,304) P        125,618
      Accumulated deficit                                               (31,782)        (3,273)           3,273  Q        (31,782)
      Other, primarily treasury stock                                    (3,392)           (66)              66  R         (3,392)
                                                                      ---------      ---------        ---------         ---------
           Total stockholders' equity                                    57,753            970           31,748            90,471
                                                                      ---------      ---------        ---------         ---------

           Total liabilities and stockholders' equity                 $  81,109      $ 257,557        $  26,696         $ 365,362
                                                                      =========      =========        =========         =========

                                                             See accompanying notes.

                                                                      F-26




                                                     HEADWATERS INCORPORATED
                                   UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
                                              For the year ended September 30, 2001


                                                                                Historical
                                                                    ----------------------------------    Pro Forma      Pro Forma
(thousands of dollars and shares, except per share amounts)           Headwaters             ISG          Adjustments     Combined
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                      (Year ended         (Year ended
                                                                 September 30, 2001)   December 31, 2001)
                                                                                                             
Revenue:
      Coal combustion product sales                                                       $  135,507                     $  135,507
      Chemical reagent sales                                          $   22,407                                             22,407
      Manufactured product sales                                                              48,654                         48,654
      License fees                                                        20,765                                             20,765
      Service and other revenues                                           2,292              32,070                         34,362
                                                                      ----------          ----------                     ----------
          Total revenue                                                   45,464             216,231                        261,695
                                                                      ----------          ----------                     ----------
Operating costs and expenses:
      Cost of coal combustion products sold                                                   97,362                         97,362
      Cost of chemical reagents sold                                      14,524                                             14,524
      Cost of manufactured products sold                                                      38,448                         38,448
      Cost of services and other revenues                                                     22,417                         22,417
      Depreciation and amortization                                          355              15,810       $     266  S
                                                                                                              (4,041) T      12,390
      Selling, general and administrative                                  8,554              25,019                         33,573
      Research and development                                             2,400               2,308                          4,708
                                                                      ----------          ----------       ---------     ----------
          Total operating costs and expenses                              25,833             201,364          (3,775)       223,422
                                                                      ----------          ----------       ---------     ----------
Operating income                                                          19,631              14,867           3,775         38,273
                                                                      ----------          ----------       ---------     ----------
Other income (expense):
      Interest and net investment income                                     726                 455                          1,181
      Interest expense                                                      (224)            (22,948)         20,094  U
                                                                                                             (15,296) V     (18,374)
      Losses on notes receivable and equity investments                   (6,265)                                            (6,265)
      Other, net                                                             600                  21                            621
                                                                      ----------          ----------       ---------     ----------
          Total other expense, net                                        (5,163)            (22,472)          4,798        (22,837)
                                                                      ----------          ----------       ---------     ----------
Income (loss) before income taxes                                         14,468              (7,605)          8,573         15,436
      Income tax benefit                                                   7,049               1,428          (1,810) W       6,667
                                                                      ----------          ----------       ---------     ----------
Net income (loss)                                                     $   21,517          $   (6,177)      $   6,763     $   22,103
                                                                      ==========          ==========       =========     ==========

Basic net income per common share                                     $     0.94                                         $     0.88
                                                                      ==========                                         ==========
Diluted net income per common share                                   $     0.87                                         $     0.83
                                                                      ==========                                         ==========

Weighted-average shares outstanding:
      Basic                                                               22,787                               2,100  X      24,887
                                                                      ==========                           =========     ==========
      Diluted                                                             24,637                               2,100  X      26,737
                                                                      ==========                           =========     ==========

                                                             See accompanying notes.

                                                                      F-27




                                                     HEADWATERS INCORPORATED
                                   UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
                                            For the nine months ended June 30, 2002


                                                                                Historical
                                                                    ----------------------------------    Pro Forma      Pro Forma
(thousands of dollars and shares, except per share amounts)           Headwaters             ISG          Adjustments     Combined
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                             
Revenue:
      Coal combustion product sales                                                       $  100,464                     $  100,464
      Chemical reagent sales                                          $   49,521                                             49,521
      Manufactured product sales                                                              35,913                         35,913
      License fees                                                        21,263                                             21,263
      Service and other revenues                                           4,862              21,547                         26,409
                                                                      ----------          ----------                     ----------
          Total revenue                                                   75,646             157,924                        233,570
                                                                      ----------          ----------                     ----------
Operating costs and expenses:
      Cost of coal combustion products sold                                                   71,267                         71,267
      Cost of chemical reagents sold                                      33,749                                             33,749
      Cost of manufactured products sold                                                      28,367                         28,367
      Cost of services and other revenues                                  4,256              16,135                         20,391
      Depreciation and amortization                                        1,000               9,821       $     200  S
                                                                                                              (1,002) T      10,019
      Selling, general and administrative                                  9,383              19,448                         28,831
      Research and development                                             1,727               1,773                          3,500
                                                                      ----------          ----------       ---------     ----------
          Total operating costs and expenses                              50,115             146,811            (802)       196,124
                                                                      ----------          ----------       ---------     ----------
Operating income                                                          25,531              11,113             802         37,446
                                                                      ----------          ----------       ---------     ----------

Other income (expense):
      Interest and net investment income                                     432                 185                            617
      Interest expense                                                       (68)            (15,393)         14,550  U
                                                                                                             (11,472) V     (12,383)
      Other, net                                                           2,047                 355                          2,402
                                                                      ----------          ----------       ---------     ----------
          Total other income (expense), net                                2,411             (14,853)          3,078         (9,364)
                                                                      ----------          ----------       ---------     ----------
Income (loss) before income taxes and extraordinary item                  27,942              (3,740)          3,880         28,082
      Income tax benefit (provision)                                     (11,020)                848          (1,150) W     (11,322)
                                                                      ----------          ----------       ---------     ----------
Net income (loss) before extraordinary item                           $   16,922          $   (2,892)      $   2,730     $   16,760
                                                                      ==========          ==========       =========     ==========

Basic net income per common share                                     $     0.70                                         $     0.64
                                                                      ==========                                         ==========
Diluted net income per common share                                   $     0.66                                         $     0.61
                                                                      ==========                                         ==========

Weighted-average shares outstanding:
      Basic                                                               24,007                               2,100  X      26,107
                                                                      ==========                           =========     ==========
      Diluted                                                             25,562                               2,100  X      27,662
                                                                      ==========                           =========     ==========

                                                           See accompanying notes.

                                                                     F-28



                             HEADWATERS INCORPORATED
                     NOTES TO UNAUDITED PRO FORMA CONDENSED
                          COMBINED FINANCIAL STATEMENTS
        (dollar and share amounts in thousands, except per share amounts)


1.   Basis of Presentation

The pro forma condensed combined financial statements included herein have been
prepared pursuant to the rules and regulations of the Securities and Exchange
Commission. Certain information and certain footnote disclosures normally
included in financial statements prepared in accordance with accounting
principles generally accepted in the United States have been condensed or
omitted pursuant to such rules and regulations; however, management believes
that the disclosures are adequate to make the information presented not
misleading.

2.   Acquisition of Industrial Services Group, Inc.

On September 19, 2002, Headwaters acquired 100% of the common stock of
Industrial Services Group, Inc. ("ISG") and redeemed all of its outstanding
preferred stock. ISG is headquartered in Salt Lake City, Utah and is engaged
primarily in the management of long-term contracts for coal combustion products
and the distribution of related building materials and construction products
throughout the United States through its wholly-owned subsidiary, ISG Resources,
Inc. Total consideration at closing is currently estimated to be approximately
$258,056 consisting of cash of $32,700, the issuance of 2,100 shares of
Headwaters common stock with an assumed value of $32,718 (market value at
closing was approximately $26,000), cash payments of $184,638 to retire ISG debt
and related accrued interest, and direct costs incurred by Headwaters to
consummate the acquisition of approximately $8,000.

In order to obtain the cash necessary to acquire ISG and retire the ISG debt,
Headwaters issued $175,000 of new debt consisting of $155,000 of senior secured
debt with a five-year term and a floating interest rate and $20,000 of
subordinated debt with an approximate five-year term and a fixed interest rate.
ISG management participated in one-half or $10,000 of the subordinated debt.
Total cash proceeds from the issuance of new debt, net of debt discounts, was
$169,950. Headwaters incurred approximately $6,200 of debt issuance costs to
place the new debt, which has a combined effective weighted average interest
rate of approximately 9.0%.

The following table sets forth the estimated consideration exchanged at closing
to acquire ISG:

Estimated consideration at closing:
    Fair value of Headwaters stock (2,100 shares at $15.58 per share) $  32,718
    Cash paid to ISG stockholders                                        32,700
    Cash paid to retire ISG debt and related accrued interest           184,638
    Estimated direct costs                                                8,000
                                                                      ---------
              Total                                                   $ 258,056
                                                                      =========

The value of Headwaters' 2,100 shares of common stock issued was determined
using the average market price of Headwaters' stock over a five-day period,
consisting of the day the terms of acquisition were agreed to and announced and
two days prior to and two days subsequent to that day. This average price was
$15.58 per share.

                                      F-29


The following table sets forth a preliminary allocation of the total estimated
consideration to the tangible and intangible assets acquired and liabilities
assumed:

Preliminary purchase price allocation:
     Tangible assets acquired, net of liabilities assumed             $  75,317
     Intangible assets acquired:
         Contracts                                                      106,000
         Patents                                                          3,000
         Goodwill                                                       111,073
     Deferred income taxes, primarily related to intangible assets      (37,334)
                                                                      ---------
         Total estimated consideration at closing                     $ 258,056
                                                                      =========

The ISG acquisition will be accounted for using the purchase method of
accounting as required by Statement of Financial Accounting Standards No.141,
"Business Combinations." Assets acquired and liabilities assumed will be
recorded at their estimated fair values as of September 19, 2002. For purposes
of the accompanying pro forma information, approximately $109,000 of the
estimated purchase price was allocated to identifiable intangible assets
consisting primarily of contracts with an estimated combined useful life of 20
years. The remaining purchase price not attributable to the tangible and
identifiable intangible assets will be allocated to goodwill. The actual
consideration as well as the allocation of the amount of such consideration will
likely differ from that reflected in these unaudited pro forma condensed
combined financial statements after final valuations and other procedures have
been completed.

Due to the provisions of Statement of Financial Accounting Standards No.142,
"Goodwill and Other Intangible Assets," which require that amortization of
goodwill be discontinued, amortization of the new goodwill has not been
reflected in the pro forma information for any period presented. Also, the
goodwill amortization recorded in ISG's results of operations has been
eliminated. Accordingly, there is no goodwill amortization reflected in the pro
forma information for any period presented.

3.       Pro Forma Financial Statements and Adjustments

The pro forma combined balance sheet gives effect to the acquisition of ISG as
if it had been completed as of June 30, 2002 and combines the historical June
30, 2002 balance sheets for both Headwaters and ISG. The pro forma combined
statements of operations for the year ended September 30, 2001 and the nine
months ended June 30, 2002 give effect to the acquisition as if it had occurred
on October 1, 2000. The pro forma combined statement of operations for the year
ended September 30, 2001 combines Headwaters' historical results for the year
ended September 30, 2001 with ISG's historical results for the year ended
December 31, 2001. The pro forma combined statement of operations for the nine
months ended June 30, 2002 combines both Headwaters' and ISG's historical
results for that nine month period. Accordingly, ISG's historical results for
the three-month period from October 1, 2001 to December 31, 2001 are included in
both the pro forma combined statement of operations for the year ended September
30, 2001 and the pro forma combined statement of operations for the nine months
ended June 30, 2002. ISG's revenues and net loss for the three-month period
ended December 31, 2001 which were included in both of these periods were
$51,221 and $(2,208), respectively.

                                      F-30


The pro forma combined financial statements are presented for illustrative
purposes only. Such information does not purport to be indicative of the results
of operations or financial position which actually would have resulted had the
acquisition occurred on the dates indicated, nor is it indicative of the results
that may be expected in future periods. The pro forma adjustments are based upon
information and assumptions available at the time of filing this Form 8-K.

The pro forma condensed combined financial statements give effect to the
following pro forma adjustments:

      A  Cash component of purchase price paid at closing, including transaction
         costs, ($40,145) plus cash paid to retire ISG's long-term debt and
         related accrued interest ($184,638).

      B  New issuance of long-term debt by Headwaters.

      C  Debt issuance costs related to new issuance of long-term debt by
         Headwaters.

      D  Reclassification of assumed "deficiency" in cash, cash equivalents and
         short-term investments to short-term debt. This pro forma "deficiency"
         of $20,874 as of June 30, 2002 did not exist as of the closing date in
         September 2002, due to positive cash flows for both Headwaters and ISG
         during the period July 1, 2002 through September 19, 2002.

      E  Reclassification of Headwaters' non-current deferred tax asset against
         ISG's larger non-current deferred tax liability in order to reflect a
         single non-current deferred tax balance.

      F  Adjustment to increase identifiable intangible assets of ISG to
         estimated fair value at acquisition date.

      G  Elimination of ISG's historical goodwill.

      H  Adjustment to record new goodwill, based on assumed fair values of ISG
         assets acquired and liabilities assumed.

      I  Elimination of ISG's debt issuance costs related to debt retired as of
         acquisition date.

      J  Reclassification of direct costs incurred by Headwaters related to
         acquisition of ISG.

      K  Elimination of ISG's accrued interest paid by Headwaters at acquisition
         date.

      L  Elimination of ISG's long-term debt retired by Headwaters at
         acquisition date.

      M  Adjustment to record additional deferred income taxes on increased
         value of identifiable intangible assets of ISG.

      N  Elimination of ISG's redeemable preferred stock, redeemed as part of
         the acquisition.

      O  Headwaters common stock issued at closing.

      P  Elimination of ISG's capital accounts.

      Q  Elimination of ISG's accumulated deficit.

                                      F-31


      R  Elimination of ISG's other equity.

      S  Amortization of increase in recorded value of ISG's identifiable
         intangible assets, calculated using the straight-line method and a
         20-year life.

      T  Elimination of ISG's historical non-deductible goodwill amortization
         through December 31, 2001. ISG did not amortize its goodwill from
         January 1, 2002 through June 30, 2002 nor is there any amortization of
         the assumed goodwill, due to the implementation requirements of SFAS
         142.

      U  Elimination of ISG's interest on long-term debt retired by Headwaters
         at closing.

      V  Adjustment to record interest on new $175,000 long-term debt issuance
         by Headwaters, calculated using a 9.0% effective interest rate, which
         includes the amortization of debt discounts totaling $5,050 and
         estimated debt issuance costs of $6,200. The effect of a 1/8% change in
         the effective interest rate would be approximately $212 per year.

      W  Income tax effect of P&L-related pro forma adjustments, calculated
         using a combined effective federal and state income tax rate of
         approximately 40%.

      X  The pro forma combined net income per share amounts are based on (i)
         Headwaters' historical weighted-average number of common shares
         outstanding, plus (ii) the shares issued at the acquisition date
         (2,100).

                                      F-32