SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549


FORM 8-K

CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): August 18, 2000

ADVANCED ENERGY INDUSTRIES, INC.
(Exact Name of Registrant as Specified in Charter)

          Delaware                     000-26966                84-0846841
(State or Other Jurisdiction    (Commission File Number)      (IRS Employer
      of Incorporation)                                     Identification No.)

1625 Sharp Point Drive, Fort Collins, Colorado       80525
 (Address of Principal Executive Offices)          (Zip Code)

Registrant's telephone number, including area code: (970) 221-4670

N/A

(Former Name or Former Address, if Changed Since Last Report)

1

ITEM 5. OTHER EVENTS.

On August 18, 2000, Advanced Energy acquired Sekidenko, Inc. by issuing 2,100,000 shares of its common stock. The merger constituted a tax-free reorganization in which Sekidenko, Inc. became a wholly owned subsidiary of Advanced Energy. The merger has been accounted for as a pooling of interests. Accordingly, the prior period consolidated financial statements for 1995 through 1999 have been restated to include Sekidenko, Inc., as though it had always been part of Advanced Energy. Such audited restated financial statements for Advanced Energy as of December 31, 1999 and 1998, and for the three years in the period ended December 31, 1999, are set forth herein.

2

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

                                                                                                         PAGE
                                                                                                         ----
Report of Arthur Andersen LLP, Independent Public Accountants .....................................       4
Report of KPMG LLP, Independent Public Accountants ................................................       5
Consolidated Balance Sheets as of December 31, 1999 and 1998 ......................................       6
Consolidated Statement of Operations for the Years Ended December 31, 1999, 1998 and 1997 .........       8
Consolidated Statement of Stockholders' Equity for the Years Ended December 31, 1999, 1998 and 1997       9
Consolidated Statement of Cash Flows for the Years Ended December 31, 1999, 1998 and 1997 .........      10
Notes to Consolidated Financial Statements ........................................................      11
Schedule II - Valuation and Qualifying Accounts ...................................................      26

3

REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To the Board of Directors and Shareholders of Advanced Energy Industries, Inc.:

We have audited the accompanying consolidated balance sheets of Advanced Energy Industries, Inc. (a Delaware corporation) and subsidiaries as of December 31, 1999 and 1998, and the related consolidated statements of operations, stockholders' equity, and cash flows for each of the three years in the period ended December 31, 1999. These consolidated financial statements and the schedule referred to below are the responsibility of the Company's management. Our responsibility is to express an opinion on these consolidated financial statements and schedule based on our audits. The consolidated financial statements give retroactive effect to the mergers of the Company with Sekidenko, Inc., Noah Holdings, Inc. and RF Power Products, Inc., which have been accounted for as pooling of interests as described in Notes 3 and 19 to the consolidated financial statements. We did not audit the consolidated statements of operations, shareholders' equity and cash flows of RF Power Products, Inc. for the year ended November 30, 1997 (the previous year-end of RF Power Products, Inc. - see Note 3), which statements reflect total revenues of 18% of the related consolidated totals for the year ended December 31, 1997. These statements were audited by other auditors whose report has been furnished to us, and our opinion, insofar as it relates to amounts included for RF Power Products, Inc., is based solely upon the report of the other auditors.

We conducted our audits in accordance with auditing standards generally accepted in the United States. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits and the report of the other auditors provide a reasonable basis for our opinion.

In our opinion, based on our audits and the report of the other auditors, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Advanced Energy Industries, Inc. and subsidiaries as of December 31, 1999 and 1998, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 1999 in conformity with accounting principles generally accepted in the United States.

Our audits were made for the purpose of forming an opinion on the basic financial statements taken as a whole. The schedule attached to the consolidated financial statements is presented for purposes of complying with the Securities and Exchange Commission's rules and is not part of the basic financial statements. This schedule has been subjected to the auditing procedures applied in our audits of the basic financial statements and, in our opinion, is fairly stated in all material respects in relation to the basic financial statements taken as a whole.

ARTHUR ANDERSEN LLP

Denver, Colorado
February 8, 2000 (except with respect to the matters discussed in Notes 1 and 19, as to which the date is August 18, 2000).

4

INDEPENDENT AUDITORS' REPORT

The Board of Directors and Shareholders
RF Power Products, Inc.:

We have audited the consolidated statement of income, shareholders' equity, and cash flows of RF Power Products, Inc. and subsidiary for the year ended November 30, 1997 (not separately presented herein). In connection with our audit of these consolidated financial statements, we also have audited the related consolidated financial statement schedule (not separately presented herein). These consolidated financial statements and financial statement schedule are the responsibility of the Company's management. Our responsibility is to express an opinion on these consolidated financial statements and financial statement schedule based on our audit.

We conducted our audit in accordance with generally accepted auditing standards. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audit provides a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the results of operations of RF Power Products, Inc. and subsidiary and their cash flows for the year ended November 30, 1997 in conformity with generally accepted accounting principles. Also, in our opinion, the related financial statement schedule, when considered in relation to the basic consolidated financial statements taken as a whole, presents fairly, in all material respects, the information set forth therein.

KPMG LLP

Philadelphia, Pennsylvania
January 16, 1998

5

ADVANCED ENERGY INDUSTRIES, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS
(IN THOUSANDS)

                                                                                               DECEMBER 31,
                                                                                         ----------------------
                                                                                            1999          1998
                                                                                         --------      --------
                                     ASSETS
CURRENT ASSETS:
  Cash and cash equivalents .......................................................      $ 21,043      $ 12,875
  Marketable securities - trading .................................................       186,440        15,839
  Accounts receivable --
     Trade (less allowances for doubtful accounts of approximately
       $639 and $622 at December 31, 1999 and 1998, respectively) .................        44,652        15,670
     Related parties ..............................................................            32           221
     Other ........................................................................         1,787           542
  Income tax receivable ...........................................................         1,453         3,658
  Inventories .....................................................................        28,410        23,528
  Other current assets ............................................................         1,803           808
  Deferred income tax assets, net .................................................         3,753         4,604
                                                                                         --------      --------
          Total current assets ....................................................       289,373        77,745
                                                                                         --------      --------



PROPERTY AND EQUIPMENT, at cost, net of accumulated
  depreciation of $18,629 and $14,778 at December 31,
  1999 and 1998, respectively .....................................................        17,699        16,202
                                                                                         --------      --------



OTHER ASSETS:
  Deposits and other ..............................................................           559         1,021
  Goodwill and intangibles, net of accumulated amortization of $3,860 and $1,925 at
     December 31, 1999 and 1998, respectively .....................................        11,040        10,263
  Demonstration and customer service equipment, net of
     accumulated depreciation of $2,235 and $1,743 at December 31,
     1999 and 1998, respectively ..................................................         2,352         2,505
  Deferred debt issuance costs, net ...............................................         4,410            --
                                                                                         --------      --------
                                                                                           18,361        13,789
                                                                                         --------      --------
          Total assets ............................................................      $325,433      $107,736
                                                                                         ========      ========

The accompanying notes to consolidated financial statements are an integral part of these consolidated balance sheets.

6

ADVANCED ENERGY INDUSTRIES, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS
(IN THOUSANDS)

                                                                                                 DECEMBER 31,
                                                                                          -------------------------
                                                                                             1999            1998
                                                                                          ---------       ---------
                      LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
  Accounts payable trade ...........................................................      $  15,702       $   6,318
  Accrued payroll and employee benefits ............................................          7,606           3,139
  Other accrued expenses ...........................................................          3,040           3,642
  Customer deposits ................................................................            804              66
  Accrued income taxes payable .....................................................          1,266             805
  Capital lease obligations, current portion .......................................            100             123
  Notes payable, current portion ...................................................          2,485             427
  Accrued interest payable on convertible subordinated notes .......................            886              --
                                                                                          ---------       ---------
          Total current liabilities ................................................         31,889          14,520
                                                                                          ---------       ---------

LONG-TERM LIABILITIES:
  Capital lease obligations, net of current portion ................................             46             110
  Notes payable, net of current portion ............................................          1,381             943
  Convertible subordinated notes payable ...........................................        135,000              --
                                                                                          ---------       ---------
                                                                                            136,427           1,053
                                                                                          ---------       ---------
          Total liabilities ........................................................        168,316          15,573
                                                                                          ---------       ---------

COMMITMENTS AND CONTINGENCIES (Note 13)

MINORITY INTEREST ..................................................................            128              --
                                                                                          ---------       ---------

STOCKHOLDERS' EQUITY:
  Preferred stock, $0.001 par value, 1,000 shares
     authorized, none issued and outstanding .......................................             --              --
  Common stock, $0.001 par value, 40,000 and 30,000 shares authorized, respectively;
     30,981 and 29,160 shares issued and outstanding, respectively .................             31              29
  Additional paid-in capital .......................................................        108,997          62,677
  Retained earnings ................................................................         48,937          29,871
  Deferred compensation ............................................................            (86)             --
  Accumulated other comprehensive loss .............................................           (890)           (414)
                                                                                          ---------       ---------
          Total stockholders' equity ...............................................        156,989          92,163
                                                                                          ---------       ---------
          Total liabilities and stockholders' equity ...............................      $ 325,433       $ 107,736
                                                                                          =========       =========

The accompanying notes to consolidated financial statements are an integral part of these consolidated balance sheets.

7

ADVANCED ENERGY INDUSTRIES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF OPERATIONS
(IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

                                                                            YEARS ENDED DECEMBER 31,
                                                                     -----------------------------------------
                                                                        1999           1998            1997
                                                                     ---------       ---------       ---------
SALES .........................................................      $ 202,849       $ 134,019       $ 188,339
COST OF SALES .................................................        110,647          94,000         116,683
                                                                     ---------       ---------       ---------
  Gross profit ................................................         92,202          40,019          71,656
                                                                     ---------       ---------       ---------
OPERATING EXPENSES:
  Research and development ....................................         28,326          24,405          19,860
  Sales and marketing .........................................         18,325          14,616          12,568
  General and administrative ..................................         16,225          13,121          11,681
  Restructuring charge ........................................             --           1,000              --
  Merger costs ................................................             --           2,742              --
  Storm (recoveries) damages ..................................             --          (1,117)          2,700
  Purchased in-process research and development ...............             --              --           3,080
                                                                     ---------       ---------       ---------
    Total operating expenses ..................................         62,876          54,767          49,889
                                                                     ---------       ---------       ---------
INCOME (LOSS) FROM OPERATIONS .................................         29,326         (14,748)         21,767
                                                                     ---------       ---------       ---------
OTHER INCOME (EXPENSE):
  Interest income .............................................          2,174           1,111             584
  Interest expense ............................................         (1,430)           (340)           (553)
  Foreign currency gain .......................................          1,504             369              97
  Other, net ..................................................           (698)           (939)         (1,002)
                                                                     ---------       ---------       ---------
                                                                         1,550             201            (874)
                                                                     ---------       ---------       ---------
    Net income (loss) before income taxes and minority interest         30,876         (14,547)         20,893
PROVISION (BENEFIT) FOR INCOME TAXES ..........................         11,741          (3,522)          7,962
MINORITY INTEREST IN NET INCOME ...............................             69              --              --
                                                                     ---------       ---------       ---------
NET INCOME (LOSS) .............................................      $  19,066       $ (11,025)      $  12,931
                                                                     =========       =========       =========
BASIC EARNINGS (LOSS) PER SHARE ...............................      $    0.64       $   (0.38)      $    0.49
                                                                     =========       =========       =========
DILUTED EARNINGS (LOSS) PER SHARE .............................      $    0.62       $   (0.38)      $    0.48
                                                                     =========       =========       =========
BASIC WEIGHTED-AVERAGE COMMON SHARES
  OUTSTANDING .................................................         29,706          29,007          26,278
                                                                     =========       =========       =========
DILUTED WEIGHTED-AVERAGE COMMON
  SHARES OUTSTANDING ..........................................         30,934          29,007          27,057
                                                                     =========       =========       =========

The accompanying notes to consolidated financial statements are an integral part of these consolidated statements.

8

ADVANCED ENERGY INDUSTRIES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY
(IN THOUSANDS)

FOR THE YEARS ENDED DECEMBER 31, 1999, 1998 AND 1997

                                                                 COMMON STOCK          ADDITIONAL
                                                           -----------------------      PAID-IN      RETAINED
                                                            SHARES         AMOUNT       CAPITAL      EARNINGS
                                                           ---------     ---------     ---------     ---------
BALANCES, December 31, 1996 ..........................        26,008     $      26     $  29,765     $  28,447
   Exercise of stock options for cash ................           135            --           268            --
   Exercise of stock options in exchange for
    stockholders' notes receivable ...................            90            --           470            --
   Proceeds from stockholders' notes receivable ......            --            --            --            --
   Sale of common stock through employee
    stock purchase plan ..............................             8            --           102            --
   Amortization of deferred compensation .............            --            --            --            --
   Sale of common stock through public
    offering, net of approximately $2,276 of expenses          1,000             1        28,723            --
   Tax benefit related to shares acquired by employees
    under stock compensation plans ...................            --            --            29            --
   Comprehensive income:
   Equity adjustment from foreign
    currency translation .............................            --            --            --            --
   Net income ........................................            --            --            --        12,931
    Total comprehensive income .......................            --            --            --            --
                                                           ---------     ---------     ---------     ---------
BALANCES, December 31, 1997 ..........................        27,241            27        59,357        41,378
   Exercise of stock options for cash ................           219            --           728            --
   Proceeds from stockholders' notes receivable ......            --            --            --            --
   Sale of common stock through employee
    stock purchase plan ..............................            20            --           133            --
   Amortization of deferred compensation .............            --            --            --            --
   Issuance of common stock for intangibles ..........         1,680             2         2,094            --
   Tax benefit related to shares acquired by employees
    under stock compensation plans ...................            --            --           365            --
   Adjustment to conform year-end of merged entity ...            --            --            --          (482)
   Comprehensive loss:
   Equity adjustment from foreign
    currency translation .............................            --            --            --            --
   Net loss ..........................................            --            --            --       (11,025)
    Total comprehensive loss .........................            --            --            --            --
                                                           ---------     ---------     ---------     ---------
BALANCES, December 31, 1998 ..........................        29,160            29        62,677        29,871
   Exercise of stock options for cash ................           490             1         4,147            --
   Sale of common stock through employee
    stock purchase plan ..............................            22            --           345            --
   Issuance of common stock for intangibles ..........           227            --         2,335            --
   Tax benefit related to shares acquired by employees
    under stock compensation plans ...................            --            --         1,422            --
   Sale of common stock through private and public
    offerings, net of approximately $2,448 of expenses         1,070             1        37,826            --
   Issuance of common stock for services rendered ....            12            --           136            --
   Deferred compensation on stock options issued .....            --            --           109            --
   Amortization of deferred compensation .............            --            --            --            --
   Comprehensive income:
   Equity adjustment from foreign
    currency translation .............................            --            --            --            --
   Net income ........................................            --            --            --        19,066
    Total comprehensive income .......................            --            --            --            --
                                                           ---------     ---------     ---------     ---------
BALANCES, December 31, 1999 ..........................        30,981     $      31     $ 108,997     $  48,937
                                                           =========     =========     =========     =========

                                                                                         ACCUMULATED
                                                           STOCKHOLDERS'                   OTHER           TOTAL
                                                             NOTES          DEFERRED    COMPREHENSIVE   STOCKHOLDERS'
                                                           RECEIVABLE     COMPENSATION  (LOSS) INCOME     EQUITY
                                                           ----------     ------------  -------------   -------------
BALANCES, December 31, 1996 ..........................      $  (1,161)     $     (82)     $    (500)     $  56,495
   Exercise of stock options for cash ................             --             --             --            268
   Exercise of stock options in exchange for
    stockholders' notes receivable ...................           (470)            --             --             --
   Proceeds from stockholders' notes receivable ......          1,564             --             --          1,564
   Sale of common stock through employee
    stock purchase plan ..............................             --             --             --            102
   Amortization of deferred compensation .............             --             48             --             48
   Sale of common stock through public
    offering, net of approximately $2,276 of expenses              --             --             --         28,724
   Tax benefit related to shares acquired by employees
    under stock compensation plans ...................             --             --             --             29
   Comprehensive income:
   Equity adjustment from foreign
    currency translation .............................             --             --           (192)            --
   Net income ........................................             --             --             --             --
    Total comprehensive income .......................             --             --             --         12,739
                                                            ---------      ---------      ---------      ---------
BALANCES, December 31, 1997 ..........................            (67)           (34)          (692)        99,969
   Exercise of stock options for cash ................             --             --             --            728
   Proceeds from stockholders' notes receivable ......             67             --             --             67
   Sale of common stock through employee
    stock purchase plan ..............................             --             --             --            133
   Amortization of deferred compensation .............             --             34             --             34
   Issuance of common stock for intangibles ..........             --             --             --          2,096
   Tax benefit related to shares acquired by employees
    under stock compensation plans ...................             --             --             --            365
   Adjustment to conform year-end of merged entity ...             --             --             --           (482)
   Comprehensive loss:
   Equity adjustment from foreign
    currency translation .............................             --             --            278             --
   Net loss ..........................................             --             --             --             --
    Total comprehensive loss .........................             --             --             --        (10,747)
                                                            ---------      ---------      ---------      ---------
BALANCES, December 31, 1998 ..........................             --             --           (414)        92,163
   Exercise of stock options for cash ................             --             --             --          4,148
   Sale of common stock through employee
    stock purchase plan ..............................             --             --             --            345
   Issuance of common stock for intangibles ..........             --             --             --          2,335
   Tax benefit related to shares acquired by employees
    under stock compensation plans ...................             --             --             --          1,422
   Sale of common stock through private and public
    offerings, net of approximately $2,448 of expenses             --             --             --         37,827
   Issuance of common stock for services rendered ....             --             --             --            136
   Deferred compensation on stock options issued .....             --           (109)            --             --
   Amortization of deferred compensation .............             --             23             --             23
   Comprehensive income:
   Equity adjustment from foreign
    currency translation .............................             --             --           (476)            --
   Net income ........................................             --             --             --             --
    Total comprehensive income .......................             --             --             --         18,590
                                                            ---------      ---------      ---------      ---------
BALANCES, December 31, 1999 ..........................      $      --      $     (86)     $    (890)     $ 156,989
                                                            =========      =========      =========      =========

The accompanying notes to consolidated financial statements are an integral part of these consolidated statements.

9

ADVANCED ENERGY INDUSTRIES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF CASH FLOWS
(IN THOUSANDS)

                                                                                              YEARS ENDED DECEMBER 31,
                                                                                       -------------------------------------
                                                                                         1999          1998          1997
                                                                                       ---------     ---------     ---------

CASH FLOWS FROM OPERATING ACTIVITIES:
  Net income (loss) ...............................................................    $  19,066     $ (11,025)    $  12,931
  Adjustment for conforming year-end of merged entity .............................           --          (482)           --
  Adjustments to reconcile net income (loss) to net cash provided by operating
   activities -
     Depreciation and amortization ................................................        8,356         7,113         4,957
     Amortization of deferred debt issuance costs .................................           81            --            --
     Minority interest ............................................................           69            --            --
     Stock issued for services rendered ...........................................          136            --            --
     Provision for deferred income taxes ..........................................          851        (1,620)       (2,067)
     Amortization of deferred compensation ........................................           23            34            48
     Purchased in-process research and development ................................           --            --         3,080
     (Gain) loss on disposal of property and equipment ............................          (15)          120         1,046
     Earnings from marketable securities, net .....................................       (1,724)         (765)         (174)
     Writedown of LITMAS investment ...............................................          322           600            --
     Changes in operating assets and liabilities -
        Accounts receivable-trade, net ............................................      (28,822)       20,648       (13,441)
        Related parties and other receivables .....................................       (1,306)        1,473          (460)
        Inventories ...............................................................       (4,882)       10,305       (12,310)
        Other current assets ......................................................         (252)        2,109        (1,333)
        Deposits and other ........................................................          280             9           733
        Demonstration and customer service equipment ..............................         (563)       (1,034)         (641)
        Accounts payable trade ....................................................        9,171        (9,603)       10,704
        Accrued payroll and employee benefits .....................................        4,467        (2,585)        2,595
        Customer deposits and other accrued expenses ..............................        1,022           916           698
        Income taxes payable/receivable, net ......................................        4,088        (5,929)        1,375
                                                                                       ---------     ---------     ---------
          Net cash provided by operating activities ...............................       10,368        10,284         7,741
                                                                                       ---------     ---------     ---------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Purchase of marketable securities ...............................................     (170,805)       (1,000)      (20,000)
  Sale of marketable securities ...................................................        1,928         6,100            --
  Purchase of property and equipment, net .........................................       (7,168)       (5,410)       (7,640)
  Purchase of LITMAS, net of cash acquired ........................................         (175)       (1,000)           --
  Acquisition of assets of Fourth State Technology, Inc. ..........................           --        (2,500)           --
  Acquisition of Tower Electronics, Inc., net of cash acquired ....................           --            --       (12,995)
                                                                                       ---------     ---------     ---------
          Net cash used in investing activities ...................................     (176,220)       (3,810)      (40,635)
                                                                                       ---------     ---------     ---------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Proceeds from notes payable .....................................................        3,304         2,201        15,828
  Repayment of notes payable and capital lease obligations ........................       (1,637)       (9,382)      (13,479)
  Proceeds from convertible debt, net .............................................      130,509            --            --
  Sale of common stock, net of expenses ...........................................       37,827            --        28,724
  Sale of common stock through employee stock purchase plan .......................          345           133           102
  Proceeds from exercise of stock options and warrants ............................        4,148           728           268
  Proceeds from stockholders' notes receivable ....................................           --            67         1,564
                                                                                       ---------     ---------     ---------
     Net cash provided by (used in) financing activities ..........................      174,496        (6,253)       33,007
                                                                                       ---------     ---------     ---------
EFFECT OF CURRENCY TRANSLATION ON CASH ............................................         (476)          278          (192)
                                                                                       ---------     ---------     ---------
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS ..................................        8,168           499           (79)
CASH AND CASH EQUIVALENTS, beginning of period ....................................       12,875        12,376        12,455
                                                                                       ---------     ---------     ---------
CASH AND CASH EQUIVALENTS, end of period ..........................................    $  21,043     $  12,875     $  12,376
                                                                                       =========     =========     =========
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING
  AND FINANCING ACTIVITIES:
     Tax benefit related to shares acquired by employees under stock option plans .    $   1,422     $     365     $      29
                                                                                       =========     =========     =========
     Conversion of royalty payable to note payable ................................    $     742     $      --     $      --
                                                                                       =========     =========     =========
     Note payable assumed in Tower acquisition ....................................    $      --     $      --     $   1,389
                                                                                       =========     =========     =========
     Exercise of stock options in exchange for stockholders' notes receivable .....    $      --     $      --     $     470
                                                                                       =========     =========     =========
     Deferred compensation on stock options issued ................................    $     109     $      --     $      --
                                                                                       =========     =========     =========
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
  Cash paid for interest ..........................................................    $     459     $     423     $     547
                                                                                       =========     =========     =========
  Cash paid for income taxes, net .................................................    $   6,221     $   2,395     $   8,010
                                                                                       =========     =========     =========

The accompanying notes to consolidated financial statements are an integral part of these consolidated statements.

10

ADVANCED ENERGY INDUSTRIES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(1) COMPANY OPERATIONS

Advanced Energy Industries, Inc. (the "Company") was incorporated in Colorado in 1981 and reincorporated in Delaware in 1995. The Company is primarily engaged in the development and production of power conversion and control systems, which are used by manufacturers of semiconductors and in industrial thin film manufacturing processes. The Company owns 100% of each of the following subsidiaries: Advanced Energy Japan K.K. ("AE-Japan"), Advanced Energy Industries GmbH ("AE-Germany"), Advanced Energy Industries U.K. Limited ("AE-UK"), Advanced Energy Industries Korea, Inc. ("AE-Korea") and Advanced Energy Taiwan, Ltd. ("AE-Taiwan"). The Company also owns 100% of Advanced Energy Voorhees, Inc. ("AEV"), formerly RF Power Products, Inc. ("RFPP"), Tower Electronics, Inc. ("Tower"), Noah Holdings, Inc. ("Noah") and Sekidenko, Inc. ("Sekidenko") and 56.5% of LITMAS. As discussed in Note 19, Noah was merged into the Company on April 6, 2000, and Sekidenko was merged into the Company on August 18, 2000. Both of the acquisitions of Noah and Sekidenko have been accounted for as a pooling of interests under Accounting Principles Board Opinion No. 16. Accordingly, all prior period consolidated financials statements have been restated to include Noah and Sekidenko as though they had always been part of the Company. AEV is a New Jersey-based designer and manufacturer of radio frequency power systems, matching networks and peripheral products primarily used by original equipment providers in the semiconductor capital equipment, commercial coating, flat panel display and analytical instrumentation markets. Tower is a Minnesota-based designer and manufacturer of custom, high-performance switchmode power supplies used principally in the telecommunications, medical and non-impact printing industries. Noah is a California-based manufacturer of solid state temperature control systems used to control process temperatures during semiconductor manufacturing. Sekidenko is a Washington-based manufacturer and supplier of optical fiber thermometers to the semiconductor capital equipment industry. LITMAS is a start-up company that designs and manufactures plasma gas abatement systems and high-density plasma sources.

The Company continues to be subject to certain risks similar to other companies in its industry. These risks include significant fluctuations of quarterly operating results, the volatility of the semiconductor and semiconductor capital equipment industries, customer concentration within the markets the Company serves, manufacturing facilities risks, recent and potential future acquisitions, management of growth, supply constraints and dependencies, dependence on design wins, barriers to obtaining new customers, the high level of customized designs, rapid technological changes, competition, international sales risks, the Asian financial markets, intellectual property rights, governmental regulations, and the volatility of the market price of the Company's common stock. A significant change in any of these risk factors could have a material impact on the Company's business.

(2) SIGNIFICANT ACCOUNTING POLICIES

BASIS OF PRESENTATION -- The consolidated financial statements include the accounts of the Company and its subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation.

CASH AND CASH EQUIVALENTS -- For cash flow purposes, the Company considers all cash and highly liquid investments with an original maturity of 90 days or less to be cash and cash equivalents.

11

INVENTORIES -- Inventories include costs of materials, direct labor and manufacturing overhead. Inventories are valued at the lower of market or cost, computed on a first-in, first-out basis.

MARKETABLE SECURITIES - TRADING -- The Company has investments in marketable equity securities and municipal bonds, which have original maturities of 90 days or more. In accordance with Statement of Financial Accounting Standards ("SFAS") No. 115, "Accounting for Certain Investments in Debt and Equity Securities," the investments are classified as trading securities and reported at fair value with unrealized gains and losses included in earnings.

DEMONSTRATION AND CUSTOMER SERVICE EQUIPMENT -- Demonstration and customer service equipment are manufactured products utilized for sales demonstration and evaluation purposes. The Company also utilizes this equipment in its customer service function as replacement and loaner equipment to existing customers.

The Company depreciates the equipment based on its estimated useful life in the sales and customer service functions. The depreciation is computed based on a 3-year life.

PROPERTY AND EQUIPMENT -- Property and equipment is stated at cost. Additions, improvements, and major renewals are capitalized. Maintenance, repairs, and minor renewals are expensed as incurred.

Depreciation is provided using straight-line and accelerated methods over three to ten years for machinery and equipment. Amortization of leasehold improvements and leased equipment is provided using the straight-line method over the life of the lease term or the life of the assets, whichever is shorter.

GOODWILL AND INTANGIBLES -- Goodwill and intangibles are recorded at the date of acquisition at their allocated cost. Amortization is provided over the estimated useful lives ranging from 5 to 7 years for both the goodwill and the intangible assets.

CONCENTRATIONS OF CREDIT RISK -- The Company's revenues generally are concentrated among a small number of customers, the majority of which are in the semiconductor capital equipment industry. The Company's foreign subsidiaries sales are primarily denominated in currencies other than the U.S. dollar (see Note 14). The Company establishes an allowance for doubtful accounts based upon factors surrounding the credit risk of specific customers, historical trends and other information.

WARRANTY POLICY -- The Company estimates the costs of repairing products under warranty based on the historical average cost of the repairs. The Company offers warranty coverage for its systems for periods ranging from 12 to 24 months after shipment.

CUMULATIVE TRANSLATION ADJUSTMENT -- The functional currency for the Company's foreign operations is the applicable local currency.

The Company records a cumulative translation adjustment from translation of the financial statements of AE-Japan, AE-Germany, AE-Korea, AE-UK and AE-Taiwan. This equity account includes the results of translating balance sheet assets and liabilities at current exchange rates as of the balance sheet date, and the statements of operations and cash flows at the average exchange rates during the respective year.

The Company recognizes gain or loss on foreign currency transactions, which are not considered to be of a long-term investment nature. The Company recognized a gain on foreign currency transactions of $1,504,000, $369,000 and $97,000 for the years ended December 31, 1999, 1998 and 1997, respectively.

REVENUE RECOGNITION -- The Company recognizes revenue when products are shipped.

INCOME TAXES -- The Company accounts for income taxes in accordance with SFAS No. 109, "Accounting for Income Taxes." In accordance with SFAS No. 109, deferred tax assets and liabilities are

12

recognized for temporary differences between the tax basis and financial reporting basis of assets and liabilities, computed at current tax rates. Also, the Company's deferred income tax assets include certain future tax benefits. The Company records a valuation allowance against any portion of those deferred income tax assets which it believes it will more likely than not fail to realize.

EARNINGS PER SHARE -- Basic EPS is computed by dividing income available to common stockholders by the weighted-average number of common shares outstanding during the period. The computation of diluted EPS is similar to the computation of basic EPS except that the denominator is increased to include the number of additional common shares that would have been outstanding (using the treasury stock method) if dilutive potential common shares had been issued. Basic and diluted EPS were the same for fiscal 1998 as the Company incurred losses from operations, therefore, making the effect of all potential common shares anti-dilutive.

COMPREHENSIVE INCOME (LOSS) -- SFAS No. 130, "Reporting Comprehensive Income," established rules for the reporting of comprehensive income (loss) and its components. Comprehensive income (loss) for the Company consists of net income
(loss) and foreign currency translation adjustments and is presented in the Consolidated Statement of Stockholders' Equity.

SEGMENT REPORTING -- SFAS No. 131, "Disclosure about Segments of an Enterprise and Related Information," requires a public business enterprise to report financial and descriptive information about its reportable operating segments. Operating segments are components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision-maker in deciding how to allocate resources and in assessing performance. Management operates and manages its business of supplying power conversion and control systems as one operating segment, as their products have similar economic characteristics and production processes.

RECENT ACCOUNTING PRONOUNCEMENTS -- In June 1998 the FASB issued SFAS No. 133, "Accounting for Derivative Instruments and Hedging Activities." The Company is required to adopt SFAS No. 133, as amended by SFAS No. 137, in fiscal 2001. SFAS No. 133 establishes accounting and reporting standards for derivative instruments and for hedging activity by requiring all derivatives to be recorded on the balance sheet as either an asset or liability and measured at their fair value. Changes in the derivative's fair value will be recognized currently in earnings unless specific hedging accounting criteria are met. SFAS No. 133 also establishes uniform hedge accounting criteria for all derivatives. The Company does not believe that the adoption of SFAS No. 133 will have a material impact on the consolidated financial statements.

In December 1999 the staff of the Securities and Exchange Commission issued its Staff Accounting Bulletin ("SAB") No. 101, "Revenue Recognition." SAB No. 101 provides guidance on the measurement and timing of revenue recognition in financial statements of public companies. Changes in accounting policies to apply the guidance of SAB No. 101 must be adopted by recording the cumulative effect of the change in the fiscal quarter ending December 31, 2000. Management does not believe that the adoption of SAB No. 101 will have a material effect on the Company's financial position or results of operations.

In March 2000 the FASB issued FASB Interpretation No. 44, "Accounting for Certain Transactions Involving Stock Compensation"(" FIN No. 44"). FIN No. 44 provides clarification and guidance on applying APB No. 25. Generally, FIN No. 44 provides for prospective application for grants or modifications to existing stock options or awards made after June 30, 2000. The adoption of FIN No. 44 in 2000 did not have a material effect on the Company's consolidated financial statements.

ESTIMATES AND ASSUMPTIONS -- The preparation of the Company's consolidated financial statements in conformity with generally accepted accounting principles requires the Company's management to make estimates and assumptions that affect the amounts reported and disclosed in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates.

13

ASSET IMPAIRMENTS -- The Company reviews its long-lived assets and certain identifiable intangibles to be held and used by the Company for impairment whenever events or changes in circumstances indicate their carrying amount may not be recoverable. In so doing, the Company estimates the future net cash flows expected to result from the use of the asset and its eventual disposition. If the sum of the expected future net cash flows (undiscounted and without interest charges) is less than the carrying amount of the asset, an impairment loss is recognized to reduce the asset to its estimated fair value. Otherwise, an impairment loss is not recognized. Long-lived assets and certain identifiable intangibles to be disposed of, if any, are reported at the lower of carrying amount or fair value less cost to sell.

(3) ACQUISITIONS

OTHER INTANGIBLES -- During 1999 Noah acquired various intangible assets, primarily a license agreement and patents, by issuing approximately 214,000 shares of common stock valued at $1,950,000. The entire purchase price was allocated to other intangibles and is being amortized over a seven-year useful life.

During 1998 Sekidenko acquired various intangible assets, primarily a license agreement, by issuing approximately 1,680,000 shares of common stock valued at $2,096,000. The entire purchase price was allocated to other intangibles and is being amortized over a five-year useful life.

LITMAS -- During 1998 the Company acquired a 29% ownership interest in LITMAS, a privately held, North Carolina-based start-up company that designs and manufactures plasma gas abatement systems and high-density plasma sources. The purchase price consisted of $1 million in cash. On October 1, 1999, the Company acquired an additional 27.5% interest in LITMAS for an additional $560,000. The purchase price consisted of approximately 13,000 shares of the Company's common stock valued at $385,000 and $175,000 in cash. The acquisition was accounted for using the purchase method of accounting and resulted in $523,000 allocated to intangible assets as goodwill. The results of operations of LITMAS are included within the accompanying consolidated financial statements from the date the controlling interest of 56.5% was acquired.

AEV -- On October 8, 1998, AEV (formerly RF Power Products, Inc.), a New Jersey-based designer and manufacturer of radio frequency power systems, matching networks and peripheral products primarily for original equipment providers in the semiconductor capital equipment, commercial coating, flat panel display and analytical instrumentation markets, was merged with a wholly owned subsidiary of the Company. The Company issued approximately 4 million shares of its common stock to the former shareholders of AEV. Each share of AEV common stock was exchanged for 0.3286 of one share of the Company's common stock. In addition, outstanding AEV stock options were converted at the same exchange factor into options to purchase approximately 148,000 shares of the Company's common stock.

The merger constituted a tax-free reorganization and has been accounted for as a pooling of interests under Accounting Principles Board Opinion No. 16. Accordingly, all prior period consolidated financial statements presented have been restated to include the combined balance sheet, statements of operations and cash flows of AEV as though it had always been part of the Company. AEV's year-end was November 30, and therefore, the combined statements of operations and cash flows for fiscal 1997 include AEV's results for the year ended November 30, 1997.

AEV's operating results for the month of December 1998 are not reflected in the accompanying consolidated statement of operations. This is due to changing AEV's year-end from November 30 to December 31 to conform to the Company's year-end. AEV's month of December 1998 operating results were revenues of approximately $723,000 and a net loss of $482,000, which has been charged directly to retained earnings in order to report only twelve months' operating results. In connection with the merger, the Company recorded in the fourth quarter of 1998 a charge to operating expenses of $2,742,000 for direct merger-related costs. There were no transactions between the Company and AEV prior to the

14

combination, and immaterial adjustments were recorded to conform AEV's accounting policies. Certain reclassifications were made to conform the AEV financial statements to the Company's presentations. The results of operations for the separate companies and combined amounts presented in the consolidated financial statements follow. These amounts also include the acquisitions of Noah and Sekidenko discussed in Note 19.

                                      YEARS ENDED DECEMBER 31,
                                      ------------------------
                                         1998          1997
                                      ---------     ---------
                                           (In thousands)
Sales:
  Pre-AEV merger
    Advanced Energy ..............    $  86,289     $ 141,923
    AEV ..........................       18,436        33,835
  Post-AEV merger ................       19,973            --
  Noah and Sekidenko (see Note 19)        9,321        12,581
                                      ---------     ---------
     Consolidated ................    $ 134,019     $ 188,339
                                      =========     =========

Net (loss) income:
  Pre-AEV merger
    Advanced Energy ..............    $  (2,748)    $  10,362
    AEV ..........................       (3,859)        1,694
  Post-AEV merger ................         (168)           --
  Merger costs ...................       (2,742)           --
  Noah and Sekidenko (see Note 19)       (1,508)          875
                                      ---------     ---------
     Consolidated ................    $ (11,025)    $  12,931
                                      =========     =========

FST -- Effective September 3, 1998, the Company acquired substantially all of the assets of Fourth State Technology, Inc. ("FST"), a privately held, Texas-based designer and manufacturer of process controls used to monitor and analyze data in the RF process. The purchase price consisted of $2.5 million in cash, assumption of a $113,000 liability, and an earn-out provision, which is based on profits over a twelve-quarter period beginning October 1, 1998. Approximately $2.6 million of the initial purchase price was allocated to intangible assets. During the fourth quarter of 1999, the Company accrued $240,000 to intangible assets as a result of the earn-out provision being met during the fifth quarter period. The results of operations of FST are included within the accompanying consolidated financial statements from the date of acquisition.

TOWER -- Effective August 15, 1997, the Company acquired all of the outstanding stock of Tower, a Minnesota-based designer and manufacturer of custom, high-performance switchmode power supplies used principally in the telecommunications, medical and non-impact printing industries. The purchase price consisted of $14.5 million in cash and a $1.5 million non-interest-bearing promissory note to the seller (the "Note"), which was paid in full during August 1998. Total consideration, including the effect of imputing interest on the Note, equaled $15,889,000. The acquisition was accounted for using the purchase method of accounting and resulted in a one-time charge of $3,080,000 for in-process research and development costs acquired as a result of the transaction. Acquisition costs totaled approximately $209,000.

The purchase price was allocated to the net assets of Tower as summarized below:

                                               (In thousands)
Cash and cash equivalents ...................    $  1,714
Accounts receivable .........................       2,555
Inventories .................................       2,691
Deferred tax asset ..........................          57
Fixed assets ................................         280
Goodwill ....................................       7,490
Purchased in-process research and development       3,080
Other assets ................................          39
Accounts payable ............................      (1,292)
Accrued liabilities .........................        (516)
                                                 --------
                                                 $ 16,098
                                                 ========

15

The purchase agreement included a contingent purchase price based on Tower exceeding a certain sales level in 1998. No additional purchase price was recorded during 1998 as the sales level was not achieved.

The results of operations of Tower are included within the accompanying consolidated financial statements from the date of acquisition.

(4) PUBLIC OFFERINGS OF COMMON STOCK

In October 1997 the Company closed on an offering of its common stock. In connection with the offering, 1,000,000 shares of common shares were sold at a price of $31 per share, providing gross proceeds of $31,000,000, less $2,276,000 in offering costs.

In November 1999 the Company closed on an additional offering of its common stock. In connection with the offering, 1,000,000 shares of common shares were sold at a price of $39 per share, providing gross proceeds of $39,000,000, less $2,448,000 in offering costs.

(5) MARKETABLE SECURITIES - TRADING

MARKETABLE SECURITIES - TRADING are reported at their fair value and consisted of the following:

                                            December 31,
                                       --------------------
                                         1999        1998
                                       --------    --------
                                           (In thousands)
Commercial paper ..................    $118,894    $ 12,290
Municipal bonds and notes .........      67,453       2,815
Mutual funds ......................          93         734
                                       --------    ---------
                                       $186,440    $ 15,839
                                       ========    ========

These marketable securities have original costs of $185,069,000 and $14,900,000 as of December 31, 1999 and 1998, respectively.

(6) ACCOUNTS RECEIVABLE - TRADE

ACCOUNTS RECEIVABLE - TRADE consisted of the following:

                                            December 31,
                                       ---------------------
                                         1999         1998
                                       --------     --------
                                           (In thousands)
Domestic ..........................    $ 21,877     $  9,140
Foreign ...........................      23,414        7,152
Allowance for doubtful accounts ...        (639)        (622)
                                       --------     --------
                                       $ 44,652     $ 15,670
                                       ========     ========

(7) INVENTORIES

INVENTORIES consisted of the following:

                                          December 31,
                                       ------------------
                                        1999       1998
                                       -------    -------
                                          (In thousands)
Parts and raw materials ...........    $19,381    $14,764
Work in process ...................      2,526      2,115
Finished goods ....................      6,503      6,649
                                       -------    -------
                                       $28,410    $23,528
                                       =======    =======

16

(8) PROPERTY AND EQUIPMENT

PROPERTY AND EQUIPMENT consisted of the following:

                                              December 31,
                                         ---------------------
                                           1999         1998
                                         --------     --------
                                             (In thousands)
Machinery and equipment .............    $ 18,121     $ 14,959
Computers and communication equipment       8,967        7,494
Furniture and fixtures ..............       3,781        3,756
Vehicles ............................         161          179
Leasehold improvements ..............       5,298        4,592
                                         --------     --------
                                           36,328       30,980
Less - accumulated depreciation .....     (18,629)     (14,778)
                                         --------     --------
                                         $ 17,699     $ 16,202
                                         ========     ========

(9) NOTES PAYABLE

                                                                                                          December 31,
                                                                                                     --------------------
                                                                                                      1999          1998
                                                                                                     -------       -------
                                                                                                        (In thousands)

Revolving line of credit of $30,000,000, expiring December 7, 2000, interest
  at bank's prime rate minus 1.25% or the LIBOR 360-day rate plus 150 basis
  points, (average 2.06848% during 1999, 2.02857% at December 31, 1999)
  This line includes $20,000,000 available for general use, with an option
  to convert up to $10,000,000 to a three-year term loan; additional
  advances up to $5,000,000 each for Optional Currency Rate Advances and
  Foreign Exchange Contracts. Borrowing base consists of the sum of 80% of
  eligible accounts receivable plus the lesser of 20% of eligible inventory
  or $5,000,000. Loan covenants provide certain financial restrictions
  related to working capital, leverage, net worth, payment
  and declaration of dividends and profitability ..............................................      $ 1,958       $    --
Revolving line of credit of $1,875,000, expiring July 6, 2000, interest at bank's
  prime rate plus 3.5% (minimum 12% plus 1% discount rate). Loan is secured by a
  Certificate of Deposit, certain accounts receivable, inventory, equipment and
  intangibles, and is guaranteed by a stockholder. Agreement provides for an early
  termination fee of $30,000 if the line is terminated prior to maturity ......................          241           230
Note payable, shareholder (see Note 15) .......................................................          447           447
Note payable, royalties, with interest at 7%, with monthly payments ranging from
  $5,000 to $15,000, including interest, due July 2002. The note is unsecured .................          738            --
Note payable, other ...........................................................................           --            14
Note payable to the New Jersey Economic Development Authority, with interest
  at 5%, principal and interest due monthly, matures January 2002 and
  secured by machinery and equipment ..........................................................          216           316
Note payable, shareholder (see Note 15) .......................................................          266           363
                                                                                                     -------       -------
                                                                                                       3,866         1,370
Less -- current portion .......................................................................       (2,485)         (427)
                                                                                                     -------       -------
                                                                                                     $ 1,381       $   943
                                                                                                     =======       =======

(10) CONVERTIBLE SUBORDINATED NOTES PAYABLE

In November 1999 the Company issued $135 million of convertible subordinated notes payable at 5.25%. These notes mature November 15, 2006, with interest payable on May 15th and November 15th each year beginning May 15, 2000. Net proceeds to the Company were approximately $130.5 million, after deducting $4.5 million of offering costs, which have been capitalized and are being amortized over a period of 7 years. Holders of the notes may convert the notes at any time into shares of the Company's common stock, at $49.53 per share. The Company may convert the notes on or after November 19, 2002 at a redemption price of 103.00% times the principal amount, and may convert at successively lesser amounts thereafter until November 15, 2006, at which time the Company may convert at a redemption price equal to the principal amount. At December 31, 1999, $886,000 of interest expense was accrued as a current liability.

17

(11) INCOME TAXES

For the years ended December 31, 1999, 1998 and 1997, the provision for income taxes consisted of an amount for taxes currently payable and a provision for tax effects deferred to future periods. In 1997 the Company's statutory U.S. tax rate increased from 34% to 35%.

The provision (benefit) for income taxes for the years ended December 31, 1999, 1998 and 1997 was as follows:

                                                 December 31,
                                    --------------------------------------
                                      1999           1998           1997
                                    --------       --------       --------
                                               (In thousands)
Federal ......................      $  8,087       $ (3,843)      $  6,426
State and local ..............         1,376           (561)         1,465
Foreign taxes ................         2,278            882             71
                                    --------       --------       --------
                                    $ 11,741       $ (3,522)      $  7,962
                                    ========       ========       ========

Current ......................      $ 10,890       $ (1,902)      $ 10,029
Deferred .....................           851         (1,620)        (2,067)
                                    --------       --------       --------
                                    $ 11,741       $ (3,522)      $  7,962
                                    ========       ========       ========

The following reconciles the Company's effective tax rate to the federal statutory rate for the years ended December 31, 1999, 1998 and 1997:

                                                                              December 31,
                                                                 --------------------------------------
                                                                   1999           1998            1997
                                                                 --------       --------       --------
                                                                             (In thousands)
Income tax expense (benefit) per federal statutory rate ...      $ 10,807       $ (5,091)      $  7,287
State income taxes, net of federal deduction ..............           894           (365)           851
Foreign sales corporation .................................          (331)            --           (209)
Nondeductible merger costs ................................          (228)           960             --
Nondeductible intangible and goodwill amortization ........           553            500            132
Nondeductible purchased in-process research and development            --             --          1,078
Other permanent items, net ................................          (137)          (159)           (27)
Effect of foreign taxes ...................................         1,000             80            275
Foreign operating loss with no benefit provided ...........            --            610             --
Change in valuation allowance .............................          (717)           107           (530)
Tax credits ...............................................          (100)          (164)          (511)
Other .....................................................            --             --           (384)
                                                                 --------       --------       --------
                                                                 $ 11,741       $ (3,522)      $  7,962
                                                                 ========       ========       ========

The Company's deferred income tax assets are summarized as follows:

                                                      December 31, 1999   Change  December 31, 1998
                                                      -----------------   ------  -----------------
                                                                      (In thousands)
  Employee bonuses and commissions ..................      $    30       $  (164)      $   194
  Warranty reserve ..................................          609           134           475
  Bad debt reserve ..................................          233            13           220
  Vacation accrual ..................................          525           221           304
  Royalties .........................................          280            87           193
  Obsolete and excess inventory .....................          887          (368)        1,255
  Foreign operating loss carryforwards ..............           --        (1,253)        1,253
  Research and development credit carryforwards .....           --          (324)          324
  Alternative minimum tax credit carryforwards ......           --          (276)          276
  Investment in LITMAS ..............................          343           112           231
  Depreciation and amortization .....................          473           237           236
  Other .............................................          373            13           360
  Less: Valuation allowance on foreign operating loss           --           717          (717)
                                                           -------       -------       -------
carryforwards
                                                           $ 3,753       $  (851)      $ 4,604
                                                           =======       =======       =======

The domestic versus foreign component of the Company's net income (loss) before income taxes at December 31, 1999, 1998 and 1997, was as follows:

18

                                           December 31,
                               --------------------------------------
                                 1999           1998           1997
                               --------       --------       --------
                                          (In thousands)
Domestic ................      $ 25,177       $(15,021)      $ 19,964
Foreign .................         5,699            474            929
                               --------       --------       --------
                               $ 30,876       $(14,547)      $ 20,893
                               ========       ========       ========

(12) RETIREMENT PLAN

The Company has 401(k) Profit Sharing Plans which cover most full-time employees who have completed six months of full-time continuous service and are age eighteen or older. Depending on the plan in which a participant is enrolled, participants may defer up to either 10% or 20% of their gross pay up to a maximum limit determined by law. Participants are immediately vested in their contributions.

The Company may make discretionary contributions based on corporate financial results for the fiscal year. Effective January 1, 1998, the Company increased its matching contribution for participants in the 401(k) Plans up to a 50% matching on contributions by employees up to 6% of the employee's compensation. The Company's total contributions to the plans were approximately $848,000, $754,000 and $625,000 for the years ended December 31, 1999, 1998 and 1997, respectively. Vesting in the profit sharing contribution account is based on years of service, with most participants fully vested after five years of credited service.

The Company also has a Money Purchase Pension Plan, which covers certain employees. This plan was frozen, effective July 1, 1998, and the Company is not required to make contributions to the plan for future years. The Company's contributions to this plan were $63,000 and $206,000 for 1998 and 1997, respectively. The Company made no contributions in 1999.

(13) COMMITMENTS AND CONTINGENCIES

CAPITAL LEASES

The Company finances a portion of its property and equipment under capital lease obligations at interest rates ranging from 7.63% to 24.7%. The future minimum lease payments under capitalized lease obligations as of December 31, 1999 are as follows:

                                                               In thousands)
2000 .......................................................      $ 101
2001 .......................................................         56
                                                                  -----
        Total minimum lease payments .......................        157
        Less - amount representing interest ................        (11)
        Less - current portion .............................       (100)
                                                                  -----
                                                                  $  46
                                                                  =====

OPERATING LEASES

The Company has various operating leases for automobiles, equipment, and office and production space (Note 15). Lease expense under operating leases was approximately $4,926,000, $4,822,000 and $3,196,000 for the years ended December 31, 1999, 1998 and 1997, respectively.

The future minimum rental payments required under noncancelable operating leases as of December 31, 1999 are as follows:

19

                             (In thousands)
2000 ....................      $ 4,883
2001 ....................        3,824
2002 ....................        3,241
2003 ....................        2,857
2004 ....................        2,547
Thereafter ..............       11,496
                               -------
                               $28,848
                               =======

GUARANTEE

Subsequent to year-end, the Company extended a guarantee for a $2,500,000 bank term loan through March 31, 2000, entered into by a non-public entity that serves as a supplier to the Company. An officer of the Company serves as a director of such entity. The Company has received warrants to purchase shares of the supplier for providing this guarantee. No value has currently been assigned to these warrants.

(14) FOREIGN OPERATIONS

The Company operates in a single operating segment with operations in the U.S., Asia and Europe. The following is a summary of the Company's foreign operations:

                                                                   Years Ended December 31,
                                                            -----------------------------------------
                                                               1999           1998            1997
                                                            ---------       ---------       ---------
                                                                         (In thousands)
Sales:
  Originating in Japan to unaffiliated customers .....      $  16,270       $   6,300       $  11,431
  Originating in Europe to unaffiliated customers ....         12,724           8,489           7,487
  Originating in U.S. and sold to foreign customers ..         23,996          21,188          23,161
  Originating in U.S. and sold to domestic customers .        148,424          98,042         146,260
  Originating in South Korea to unaffiliated customers          1,435              --              --
  Transfers between geographic areas .................         24,053          10,304          14,523
  Intercompany eliminations ..........................        (24,053)        (10,304)        (14,523)
                                                            ---------       ---------       ---------
                                                            $ 202,849       $ 134,019       $ 188,339
                                                            =========       =========       =========
Income (loss) from operations:
  Japan ..............................................      $   1,758       $  (1,505)      $     (73)
  Europe .............................................          2,379           1,722           1,488
  U.S ................................................         25,390         (14,944)         20,655
  South Korea ........................................            188            (186)             --
  Intercompany eliminations ..........................           (389)            165            (303)
                                                            ---------       ---------       ---------
                                                            $  29,326       $ (14,748)      $  21,767
                                                            =========       =========       =========
Identifiable assets:
  Japan ..............................................      $  13,967       $   6,039
  Europe .............................................         11,950           5,073
  U.S ................................................        345,431         127,376
  South Korea ........................................          1,393             610
  Intercompany eliminations ..........................        (47,308)        (31,362)
                                                            ---------       ---------
                                                            $ 325,433       $ 107,736
                                                            =========       =========

Intercompany sales among the Company's geographic areas are recorded on the basis of intercompany prices established by the Company.

(15) RELATED PARTY TRANSACTIONS

The Company leases office and production spaces from a limited liability partnership consisting of certain officers of the Company and other individuals. The leases relating to these spaces expire in 2009 and 2011 with monthly payments of approximately $52,000 and $58,000, respectively.

The Company also leases other office and production space from another limited liability partnership consisting of certain officers of the Company and other individuals. The lease relating to this space expires

20

in 2002 with a monthly payment of approximately $28,000.

Approximately $1,693,000, $1,359,000 and $1,320,000 was charged to rent expense attributable to these leases for the years ended December 31, 1999, 1998 and 1997, respectively.

The Company also leases office and production space from a shareholder. Approximately $197,000, $199,000 and $164,000 was charged to rent expense attributable to this lease for the years ended 1999, 1998 and 1997, respectively.

The Company leases, for business purposes, a condominium owned by a partnership of certain stockholders. The Company paid the partnership approximately $36,000 for each of the years ended December 31, 1999, 1998 and 1997, relating to this lease.

During 1999 a shareholder of Sekidenko granted employees options under a preexisting arrangement to purchase 29,700 shares of his common stock already outstanding. These options were granted with exercise prices below fair market value and will result in the Company recognizing $109,000 as compensation expense over the vesting period of the options. In 1999 $23,000 of compensation expense was recognized.

In prior years, certain stockholders of the Company exercised options to purchase shares of the Company's common stock in exchange for notes receivable in the amount of the exercise price. These notes receivable and accrued interest have been paid in full.

The Company has an unsecured note payable to a stockholder of $447,000, less current portion of $45,000, with interest at 7%, due November 1, 2002. The note is payable in installments of principal and interest of $75,000 in 2000, $135,000 in 2001 and $306,000 in 2002.

The Company has a note payable to a stockholder of $266,000, less current portion of $102,000, with interest at 5%, due January 2002. The note is payable in installments of principal and interest due semi-annually on January 13th and July 13th.

(16) MAJOR CUSTOMERS

The Company's sales to major customers (sales in excess of 10% of total sales) are to entities which are primarily manufacturers of semiconductor capital equipment and, for the years ended December 31, 1999, 1998 and 1997 are as follows:

                                        December 31,
                                   ----------------------
                                   1999     1998     1997
                                   ----     ----     ----
Customer A ...................      34%      24%      31%
Customer B ...................       6%       6%      10%
                                    --       --       --
                                    40%      30%      41%
                                    ==       ==       ==

(17) FORWARD CONTRACTS

AE-Japan enters into foreign currency forward contracts to buy U.S. dollars to hedge its payable position arising from trade purchases and intercompany transactions with its parent. Foreign currency forward contracts reduce the Company's exposure to the risk that the eventual net cash outflows resulting from the purchase of products denominated in other currencies will be adversely affected by changes in exchange rates. Foreign currency forward contracts are entered into with a major commercial Japanese bank that has a high credit rating and the Company does not expect the counterparty to fail to meet its obligations under outstanding contracts. Foreign currency gains and losses under the above arrangements are not deferred. The Company generally enters into foreign currency forward contracts with maturities ranging from 1 to 4

21

months, with contracts outstanding at December 31, 1999, maturing through April 2000. At December 31, 1999, the Company held foreign forward exchange contracts with nominal amounts of $4,500,000 and market settlement amounts of $4,498,000 for an unrealized gain position of $2,000.

(18) STOCK PLANS

EMPLOYEE STOCK OPTION PLAN -- During 1993 the Company adopted an Employee Stock Option Plan (the "Employee Option Plan") which was amended and restated in September 1995, February 1998 and February 1999. The Employee Option Plan allows issuance of incentive stock options, non-qualified options, and stock purchase rights. The exercise price of incentive stock options shall not be less than 100% of the stock's fair market value on the date of grant. The exercise price of non-qualified stock options shall not be less than 50% of the stock's fair market value on the date of grant. Options issued in 1999, 1998 and 1997 were issued at 100% of fair market value with typical vesting over three to five years. Under the Employee Option Plan, the Company has the discretion to accelerate the vesting period. The options are exercisable for ten years from the date of grant. The Company has reserved 5,625,000 shares of common stock for the issuance of stock under the Employee Option Plan, which terminates in June 2003.

In connection with the grant of certain stock options on June 30, 1995, the Company recorded $142,000 of deferred compensation for the difference between the deemed fair value for accounting purposes and the option price as determined by the Company at the date of grant. This amount is presented as a reduction of stockholders' equity and has been amortized over the 3-year vesting period of the related stock options.

EMPLOYEE STOCK PURCHASE PLAN -- In September 1995 stockholders approved an Employee Stock Purchase Plan (the "Stock Purchase Plan") covering an aggregate of 200,000 shares of common stock. Employees are eligible to participate in the Stock Purchase Plan if employed by the Company for at least 20 hours per week during at least five months per calendar year. Participating employees may have up to 15% (subject to a 5% limitation set by the Company) of their earnings or a maximum of $1,250 per six month period withheld pursuant to the Stock Purchase Plan. Common stock purchased under the Stock Purchase Plan will be equal to 85% of the lower of the fair market value on the commencement date of each offering period or the relevant purchase date. During 1999, 1998 and 1997, employees purchased an aggregate of 22,390, 20,264 and 8,186 shares under the Stock Purchase Plan, respectively.

NON-EMPLOYEE DIRECTORS STOCK OPTION PLAN -- In September 1995 the Company adopted the 1995 Non-Employee Directors Stock Option Plan (the "Directors Plan") covering 50,000 shares of common stock. In February 1999 the plan was amended to increase the number of shares of common stock issuable under such plan to 100,000 shares of common stock. The Directors Plan provides for automatic grants of non-qualified stock options to directors of the Company who are not employees of the Company ("Outside Directors"). Pursuant to the Directors Plan, upon becoming a director of the Company, each Outside Director will be granted an option to purchase 7,500 shares of common stock. Such options will be immediately exercisable as to 2,500 shares of common stock, and will vest as to 2,500 shares of common stock on each of the second and third anniversaries of the grant date. On each anniversary of the date on which a person became an Outside Director, an option for an additional 2,500 shares is granted. Such additional options vest on the third anniversary of the date of grant. Options will expire ten years after the grant date, and the exercise price of the options will be equal to the fair market value of the common stock on the grant date. The Directors Plan terminates September 2005.

The following summarizes the activity relating to options for the years ended December 31, 1999, 1998 and 1997:

22

                                                           1999                        1998                       1997
                                             -----------------------------     ----------------------    -----------------------
                                                                        (In thousands, except share prices)
                                                                 Weighted-                   Weighted-                  Weighted-
                                                                  Average                     Average                    Average
                                                                  Exercise                    Exercise                   Exercise
                                                 Shares            Price       Shares          Price       Shares         Price
                                             ------------        ----------   ---------       --------    ---------      --------
Stock options:
  Incentive stock options --
     Options outstanding at beginning of
       period ...........................           1,987    $       9.01      1,475     $       7.02      1,017     $       3.57
     Granted ............................             417           30.31        937            10.23        731            11.60
     Exercised ..........................            (487)           8.44       (219)            3.35       (225)            3.25
     Terminated .........................             (67)          10.44       (206)            6.35        (48)            4.96
                                                   ------                    -------                     -------
     Options outstanding at end of period           1,850           13.90      1,987             9.01      1,475             7.02
                                                   ======                    =======                     =======
     Options exercisable at end of period             801            9.10        651             6.89        489             4.35
                                                   ======                    =======                     =======
Weighted-average fair value of
       options granted during the period           $18.78                    $  6.71                     $  7.41
                                                   ======                    =======                     =======
     Price range of outstanding options .       $0.67-$44.97               $0.67-$31.63                $0.67-$31.63
                                                ============               ============                ============
     Price range of options terminated ..       $3.88-$28.16               $0.83-$12.75                $3.40-$9.00
                                                ============               ============                ============
Non-employee directors stock options--
    Options outstanding at beginning of
      period ............................              45    $      12.18         25     $      14.67         20     $       9.82
    Granted .............................              18           32.94         20             7.55         17            16.64
    Exercised ...........................              (3)          11.05         --               --         (2)            7.13
    Terminated ..........................              --              --         --               --        (10)            9.82
                                                   ------                    -------                     -------
    Options outstanding at end of period               60           18.34         45            12.18         25            14.67
                                                   ======                    =======                     =======
    Options exercisable at end of period               22           17.27         15            11.40          8            14.62
                                                   ======                    =======                     =======
Weighted-average fair value of options
     granted during the period ..........          $20.11                    $  4.93                     $ 11.43
                                                   ======                    =======                     =======
    Price range of outstanding options ..       $6.13-$36.94               $8.63-$29.88                $8.63-$31.63
                                                ============               ============                ============
    Price range of options terminated ...       $         --                 $    --                   $6.13-$11.05
                                                ============               ============                ============

Statement of Financial Accounting Standards No. 123, "Accounting for Stock-Based Compensation" ("SFAS No. 123"), defines a fair value based method of accounting for employee stock options or similar equity instruments. However, SFAS No. 123 allows the continued measurement of compensation cost for such plans using the intrinsic value based method prescribed by APB Opinion No. 25, "Accounting for Stock Issued to Employees" ("APB No. 25"), provided that pro forma disclosures are made of net income or loss and net income or loss per share, assuming the fair value based method of SFAS No. 123 had been applied. The Company has elected to account for stock-based compensation plans under APB No. 25, under which no compensation expense is recognized.

For SFAS No. 123 purposes, the fair value of each option grant is estimated on the date of grant using the Black-Scholes option pricing model with the following weighted-average assumptions:

                                     1999      1998      1997
                                   --------  --------  --------
Risk-free interest rates             5.92%     5.06%      6.17%
Expected dividend yield rates        0.0%      0.0%       0.0%
Expected lives                     4 years   4 years   4 years
Expected volatility                 77.33%    87.48%    101.16%

The total fair value of options granted was computed to be approximately $8,192,000, $6,056,000 and $4,912,000 for the years ended December 31, 1999, 1998 and 1997, respectively. These amounts are amortized ratably over the vesting period of the options. Cumulative compensation cost recognized in pro forma net income or loss with respect to options that are forfeited prior to vesting is adjusted as a reduction of pro forma compensation expense in the period of forfeiture. Pro forma stock-based compensation, net of the effect of forfeitures and tax, was approximately $2,999,000, $2,033,000 and $906,000 for 1999, 1998 and 1997, respectively.

Had compensation cost for these plans been determined consistent with SFAS No. 123, the Company's net income would have been reduced to the following pro forma amounts:

23

                                         1999           1998           1997
                                      ----------    -----------    ----------
                                              (In thousands, except
                                                  per share data)
Net Income (Loss):
    As reported                       $   19,066    $  (11,025)    $   12,931
    Pro forma                             16,067       (13,058)        12,025
Diluted Earnings (Loss) Per Share:
    As reported                       $     0.62    $    (0.38)    $     0.48
    Pro forma                               0.52         (0.45)          0.44

Because the SFAS No. 123 method of accounting has not been applied to options granted prior to January 1, 1995, the resulting pro forma compensation cost may not be representative of that to be expected in future years.

The following table summarizes information about the stock options outstanding at December 31, 1999:

                                                            Options Outstanding          Options Exercisable
                                                         -----------------------      ------------------------
                                                         Weighted-
                                                          Average       Weighted-                    Weighted-
                                                         Remaining       Average                      Average
    Year              Range of              Number      Contractual      Exercise       Number        Exercise
  Granted         Exercise Prices        Outstanding       Life           Price       Exercisable       Price
-----------       ----------------      -------------   ----------       ---------    ------------    ---------
1993 - 1994       $ 0.67 to $ 8.76          43,000       4.0 years       $    2.69       43,000       $    2.69
       1995       $ 2.57 to $11.05          40,000       5.0 years       $    6.42       39,000       $    6.42
       1996       $ 3.88 to $11.05         176,000       6.6 years       $    4.97      165,000       $    4.99
       1997       $ 7.13 to $31.63         468,000       6.9 years       $   11.46      320,000       $   11.16
       1998       $ 6.75 to $17.32         756,000       8.5 years       $   10.03      241,000       $   10.27
       1999       $17.32 to $44.97         427,000       9.3 years       $   30.44       15,000       $   33.06
                                         ---------       ---------       ---------      -------       ---------
                                         1,910,000       7.9 years       $   14.22      823,000       $    9.39
                                         =========       =========       =========      =======       =========

(19) SUBSEQUENT EVENTS

NOAH HOLDINGS, INC. - On April 6, 2000, Noah Holdings, Inc. ("Noah"), a privately held, California-based manufacturer of solid state temperature control systems used to control process temperatures during semiconductor manufacturing, was merged with a wholly owned subsidiary of the Company. The Company issued approximately 687,000 shares of its common stock to the former shareholders of Noah, including approximately 33,000 shares issued for a financial advisory fee relating to the merger. Each share of Noah common stock was exchanged for 0.0577 of one share of the Company's common stock. In addition, outstanding Noah stock options were converted into options to purchase approximately 40,000 shares of the Company's common stock.

SEKIDENKO, INC. - On August 18, 2000, Sekidenko, Inc. ("Sekidenko"), a privately held, Vancouver, Washington-based supplier of optical fiber thermometers to the semiconductor capital equipment industry, was merged with a wholly owned subsidiary of the Company. The Company issued 2.1 million shares of its common stock to the former shareholders of Sekidenko. Each share of Sekidenko was exchanged for 4.2 shares of the Company's common stock.

Each of the above mergers constituted a tax-free reorganization and have been accounted for as a pooling of interests under Accounting Principles Board Opinion No. 16. Accordingly, all prior period consolidated financial statements presented have been restated to include the combined balance sheet, statements of operations and cash flows of Noah and Sekidenko as though each had always been part of the Company. There were no transactions between the Company, Noah and Sekidenko prior to the combinations, and immaterial adjustments were recorded at Noah and Sekidenko to conform their accounting policies. Certain

24

reclassifications were made to conform the Noah and Sekidenko financial statements to the Company's presentations. The results of operations for the separate companies and combined amounts presented in the consolidated financial statements follow:

                                               Years Ended December 31,
                                      ----------------------------------------
                                        1999            1998            1997
                                      ---------      ---------       ---------
                                                  (In thousands)
Sales:
  Pre-Noah and Sekidenko mergers
    Advanced Energy ............      $ 183,958      $ 124,698       $ 175,758
  Noah .........................          7,617          5,638           7,489
  Sekidenko ....................         11,274          3,683           5,092
                                      ---------      ---------       ---------
     Consolidated ..............      $ 202,849      $ 134,019       $ 188,339
                                      =========      =========       =========

Net income (loss):
  Pre-Noah and Sekidenko mergers
    Advanced Energy ............      $  16,838      $  (9,517)      $  12,056
  Noah .........................            184         (1,620)            250
  Sekidenko ....................          2,044            112             625
                                      ---------      ---------       ---------
     Consolidated ..............      $  19,066      $ (11,025)      $  12,931
                                      =========      =========       =========

ENGINEERING MEASUREMENTS CO. - On July 6, 2000, the Company entered into a definitive agreement to acquire Engineering Measurements Company ("EMCO") in an exchange of stock. The shareholders and option holders of EMCO will receive approximately 900,000 shares of the Company's common stock in the transaction, which is subject to approval by EMCO's shareholders and certain other conditions. The Company believes the acquisition will be accounted for as a pooling of interests, and will operate EMCO as a wholly owned subsidiary. EMCO, a Longmont, Colorado-based company, manufactures electronic and electromechanical precision instruments for measuring and controlling the flow of liquids, steam and gases.

25

ADVANCED ENERGY INDUSTRIES, INC. AND SUBSIDIARIES

SCHEDULE II -- VALUATION AND QUALIFYING ACCOUNTS

                                                         Balance at
                                                         Beginning of  Additions Charged                  Balance at
                                                           Period         to Expense      Deductions     End of Period
                                                         ------------  -----------------  ----------     -------------
                                                                               (In thousands)
Year ended December 31, 1997:
  Inventory obsolescence reserve .................          $2,077          $4,526          $3,322          $3,281
  Allowance for doubtful accounts ................             382             263              58             587
                                                            ------          ------          ------          ------
                                                            $2,459          $4,789          $3,380          $3,868
                                                            ======          ======          ======          ======
Year ended December 31, 1998:
  Inventory obsolescence reserve .................          $3,281          $6,712          $7,367          $2,626
  Allowance for doubtful accounts ................             587             229             194             622
                                                            ------          ------          ------          ------
                                                            $3,868          $6,941          $7,561          $3,248
                                                            ======          ======          ======          ======
Year ended December 31, 1999:
  Inventory obsolescence reserve .................          $2,626          $5,254          $5,576          $2,304
  Allowance for doubtful accounts ................             622             101              84             639
                                                            ------          ------          ------          ------
                                                            $3,248          $5,355          $5,660          $2,943
                                                            ======          ======          ======          ======

26

Item 7 Financial Statements, Pro Forma Financial Information and
Exhibits.

Exh. No.             Description
  23.1             Consent of Arthur Andersen, dated September 15, 2000
  23.2             Consent of KPMG, dated September 15, 2000

27

SIGNATURE

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

Date:    September 15, 2000                 Advanced Energy Industries, Inc.




                                       By:    /s/ DOUGLAS S. SCHATZ
                                              --------------------------

Title: Chairman of the Board and Chief Executive Officer

28

EX-23.1

CONSENT OF ARTHUR ANDERSEN LLP

ARTHUR ANDERSEN LLP

EXHIBIT 23.1

CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the incorporation of our report included in this Form 8-K, into the Company's previously filed Registration Statements on Form S-8 (File Nos. 333-01616, 333-04073, 333-46705, 333-57233, 333-65413, 333-79425 and 333-79429).

Arthur Andersen LLP

Denver, Colorado,

September 15, 2000.

29

EX-23.2

CONSENT OF KPMG LLP

EXHIBIT 23.2

CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS

To the Board of Directors
Advanced Energy Industries, Inc.:

We consent to the use of our report dated January 16, 1998 with respect to the consolidated statements of income, changes in shareholders' equity and cash flows of RF Power Products, Inc. and subsidiary, currently known as Advanced Energy Voorhees, Inc., for the year ended November 30, 1997 and the related schedule (not separately presented herein), which report appears in the annual report on Form 8-K of Advanced Energy Industries, Inc. dated September 15, 2000. We also consent to incorporation by reference of such report in the registration statements (Nos. 333-79425 and 333-79429) on Form S-8 and the registration statements (Nos. 333-87455, 333-87459 and 333-90469) on Form S-3 of Advanced Energy Industries, Inc.

KPMG LLP

Philadelphia, Pennsylvania
September 15, 2000

30

WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

ARTICLE 5
RESTATED: 1
MULTIPLIER: 1,000


PERIOD TYPE YEAR YEAR YEAR YEAR
FISCAL YEAR END DEC 31 1995 DEC 31 1996 DEC 31 1997 DEC 31 1998
PERIOD START JAN 01 1995 JAN 01 1996 JAN 01 1997 JAN 01 1998
PERIOD END DEC 31 1995 DEC 31 1996 DEC 31 1997 DEC 31 1998
CASH 15,243 12,455 12,376 12,875
SECURITIES 0 0 20,175 15,839
RECEIVABLES 21,934 22,115 40,576 17,055
ALLOWANCES (316) (382) (587) (622)
INVENTORY 21,173 18,832 33,833 23,528
CURRENT ASSETS 60,578 56,249 110,849 77,745
PP&E 13,110 20,394 25,764 30,980
DEPRECIATION (4,886) (7,769) (9,981) (14,778)
TOTAL ASSETS 71,888 72,517 136,545 107,736
CURRENT LIABILITIES 19,133 12,884 33,661 14,520
BONDS 0 0 0 0
PREFERRED MANDATORY 0 0 0 0
PREFERRED 0 0 0 0
COMMON 26 26 27 29
OTHER SE 49,841 56,469 99,942 92,134
TOTAL LIABILITY AND EQUITY 71,888 72,517 136,545 107,736
SALES 130,184 138,074 188,339 134,019
TOTAL REVENUES 130,184 138,074 188,339 134,019
CGS 69,241 88,368 116,683 94,000
TOTAL COSTS 69,241 88,368 116,683 94,000
OTHER EXPENSES 34,050 39,448 49,889 54,767
LOSS PROVISION 0 0 0 0
INTEREST EXPENSE 690 340 553 340
INCOME PRETAX 26,451 10,183 20,893 (14,547)
INCOME TAX 10,110 4,055 7,962 (3,522)
INCOME CONTINUING 16,341 6,128 12,931 (11,025)
DISCONTINUED 0 0 0 0
EXTRAORDINARY 0 0 0 0
CHANGES 0 0 0 0
NET INCOME 16,341 6,128 12,931 (11,025)
EPS BASIC 0.71 0.24 0.49 (0.38)
EPS DILUTED 0.68 0.23 0.48 (0.38)
1 RESTATED PER POOLING MERGER OF ADVANCED ENERGY AND SEKIDENKO, INC. IN Q2 2000

ARTICLE 5
RESTATED: 1
MULTIPLIER: 1,000


PERIOD TYPE 3 MOS 6 MOS 9 MOS YEAR
FISCAL YEAR END DEC 31 1999 DEC 31 1999 DEC 31 1999 DEC 31 1999
PERIOD START JAN 01 1999 JAN 01 1999 JAN 01 1999 JAN 01 1999
PERIOD END MAR 31 1999 JUN 30 1999 SEP 30 1999 DEC 31 1999
CASH 12,909 12,598 12,603 21,043
SECURITIES 15,006 14,209 17,328 186,440
RECEIVABLES 24,313 32,834 40,039 47,110
ALLOWANCES (596) (599) (595) (639)
INVENTORY 24,227 25,716 26,088 28,410
CURRENT ASSETS 84,406 92,975 103,520 289,373
PP&E 32,160 32,634 33,890 36,328
DEPRECIATION (15,951) (15,906) (17,314) (18,629)
TOTAL ASSETS 113,456 122,163 134,642 325,433
CURRENT LIABILITIES 18,323 23,574 25,758 31,889
BONDS 0 0 0 135,000
PREFERRED MANDATORY 0 0 0 0
PREFERRED 0 0 0 0
COMMON 29 29 30 31
OTHER SE 94,193 97,607 107,388 156,958
TOTAL LIABILITY AND EQUITY 113,456 122,163 134,642 325,433
SALES 36,419 81,782 137,408 202,849
TOTAL REVENUES 36,419 81,782 137,408 202,849
CGS 21,187 46,280 76,955 110,647
TOTAL COSTS 21,187 46,280 76,955 110,647
OTHER EXPENSES 12,970 27,886 44,123 62,876
LOSS PROVISION 0 0 0 0
INTEREST EXPENSE 42 98 162 1,430
INCOME PRETAX 2,182 7,581 17,358 30,876
INCOME TAX 951 3,060 6,747 11,741
INCOME CONTINUING 1,231 4,521 10,611 19,066
DISCONTINUED 0 0 0 0
EXTRAORDINARY 0 0 0 0
CHANGES 0 0 0 0
NET INCOME 1,231 4,521 10,611 19,066
EPS BASIC 0.04 0.15 0.36 0.64
EPS DILUTED 0.04 0.15 0.35 0.62
1 RESTATED PER POOLING MERGER OF ADVANCED ENERGY AND SEKIDENKO, INC. IN Q3 2000

ARTICLE 5
RESTATED: 1
MULTIPLIER: 1,000


PERIOD TYPE 3 MOS 6 MOS
FISCAL YEAR END DEC 31 2000 DEC 31 2000
PERIOD START JAN 01 2000 JAN 01 2000
PERIOD END MAR 31 2000 JUN 30 2000
CASH 19,837 20,124
SECURITIES 198,718 201,221
RECEIVABLES 53,925 56,374
ALLOWANCES (645) (644)
INVENTORY 31,468 36,431
CURRENT ASSETS 309,330 319,151
PP&E 38,227 41,337
DEPRECIATION (20,153) (21,797)
TOTAL ASSETS 345,086 356,440
CURRENT LIABILITIES 37,511 33,806
BONDS 135,000 135,000
PREFERRED MANDATORY 0 0
PREFERRED 0 0
COMMON 31 31
OTHER SE 171,111 186,306
TOTAL LIABILITY AND EQUITY 345,086 356,440
SALES 75,028 160,730
TOTAL REVENUES 75,028 160,730
CGS 38,361 81,700
TOTAL COSTS 38,361 81,700
OTHER EXPENSES 19,619 41,639
LOSS PROVISION 0 0
INTEREST EXPENSE 2,029 4,119
INCOME PRETAX 17,168 38,243
INCOME TAX 5,947 13,972
INCOME CONTINUING 11,238 24,355
DISCONTINUED 0 0
EXTRAORDINARY 0 0
CHANGES 0 0
NET INCOME 11,238 24,355
EPS BASIC 0.36 0.78
EPS DILUTED 0.35 0.75
1 Restated per pooling merger of Advanced Energy & Sekidenko, Inc. in Q3 2000.