GSE SYSTEMS INC
10-Q, 1999-08-13
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 10-Q

     [X]   Quarterly  Report  Pursuant to Section 13 or 15(d) of the  Securities
           Exchange Act of 1934 for the Quarterly Period Ended June 30, 1999.
                                    or

     [ ]   Transition  Report  Pursuant to Section 13 or 15(d) of the Securities
           Exchange Act of 1934 for the Transition Period from ______ to ______.


     Commission File Number: 0-26494
                             -------
                                GSE SYSTEMS, INC.
             (Exact name of registrant as specified in its charter)

     Delaware                               52-1868008
     (State or other jurisdiction of        (I.R.S. Employer Identification No.)
     incorporation or organization)

                 9189 Red Branch Road, Columbia, Maryland, 21045
              (Address of principal executive office and zip code)

     Registrant's telephone number,
     including area code:                   (410) 772-3500


     Indicate  by check mark  whether the  registrant  (1) has filed all reports
     required to be filed by Sections 13 or 15(d) of the Securities Exchange Act
     of 1934 during the preceding 12 months (or for such shorter period that the
     Registrant was required to file such reports),  and (2) has been subject to
     such filing requirements for the past 90 days.

                                    Yes X  No
                                       ---   ---

     As of August 6,  1999,  there  were  5,065,688  shares of the  Registrant's
     common stock (par value $ .01 per share) outstanding.



  <PAGE>




                                GSE SYSTEMS, INC.

                          QUARTERLY REPORT ON FORM 10-Q

                                      INDEX

                                                                            PAGE
                                                                            ----

  PART I.  FINANCIAL INFORMATION                                             3

  Item 1.  Financial Statements:

           Consolidated Balance Sheets as of June 30, 1999
           and December 31, 1998                                             3

           Consolidated Statements of Operations for the Three
           and Six Months Ended June 30, 1999 and June 30, 1998              4

           Consolidated Statements of Comprehensive Income for the
           Three and Six Months Ended June 30, 999 and June 30, 1998         5

           Consolidated Statements of Cash Flows for the Six Months
           Ended June 30, 1999 and June 30, 1998                             6

           Notes to Consolidated Financial Statements                        7

  Item 2.  Management's Discussion and Analysis of Results of Operations
           and Financial Condition                                          11

  Item 3.  Quantitative and Qualitative Disclosure about Market Risk        15


  PART II. OTHER INFORMATION

  Item 1.  Legal Proceedings                                                15

  Item 2.  Changes in Securities and Use of Proceeds                        15

  Item 3.  Defaults upon Senior Securities                                  15

  Item 4.  Submission of Matters to a Vote of Security Holders              15

  Item 5.  Other Information                                                15

  Item 6.  Exhibits and Reports on Form 8-K                                 16

  SIGNATURES                                                                18

  <PAGE>

  PART I - FINANCIAL INFORMATION
  Item 1.  Financial Statements

                       GSE SYSTEMS, INC. AND SUBSIDIARIES
                           CONSOLIDATED BALANCE SHEETS
                 (in thousands, except share and per share data)

                                     ASSETS
  <TABLE>
  <CAPTION>



                                                   June 30,         December 31,
                                                    1999              1998
                                                 (unaudited)
                                                 -----------        ------------
  <S>                                             <C>               <C>

  Current assets:
    Cash and cash equivalents                     $    3,425        $     2,240
    Contract receivables                              18,746             24,426
    Note Receivable                                      -                1,000
    Inventories                                        3,208              2,892
    Prepaid expenses and other current assets          2,820              1,654
    Deferred income taxes                                139                150
                                                 -----------       ------------
          Total current assets                        28,338             32,362

  Property and equipment, net                          3,532              2,714
  Software development costs, net                      4,880              4,715
  Goodwill and other intangible assets, net            2,657              2,781
  Deferred income taxes                                2,526              3,366
  Other assets                                         3,519              2,805
                                                 -----------        -----------
            Total assets                         $    45,452        $    48,743
                                                 ===========        ===========

                      LIABILITIES AND STOCKHOLDERS' EQUITY
  Current liabilities:
    Lines of credit                               $    2,927        $     6,746
    Accounts payable                                   5,229              8,407
    Accrued expenses                                   5,509              4,344
    Obligations under capital lease                       84                143
    Billings in excess of revenue earned               6,189              6,359
    Accrued contract and warranty reserves               861                846
    Other current liabilities                          2,513              1,308
    Income taxes payable                                  35                151
                                                  ----------        -----------
          Total current liabilities                   23,347             28,304

  Notes payable to related parties                       140                148
  Obligations under capital lease                        -                   10
  Accrued contract and warranty reserves                 628                596
  Other liabilities                                    2,574              2,596
                                                  ----------        -----------
            Total liabilities                         26,689             31,654
                                                  ----------        -----------
  Stockholders' equity:
    Common stock $.01 par value,
        8,000,000 shares authorized,
        5,065,688 shares issued and outstanding           50                 50
    Additional paid-in capital                        21,678             21,678
    Retained earnings (deficit) - at formation        (5,112)            (5,112)
    Retained earnings           - since formation      2,760              1,158

    Accumulated other comprehensive income (loss)       (613)              (685)
                                                  ----------         ----------
            Total stockholders' equity                18,763             17,089
                                                  ----------         ----------
            Total liabilities and
            stockholders' equity                  $   45,452         $   48,743
                                                  ==========         ===========
  </TABLE>
        The  accompanying  notes  are an  integral  part of  these  consolidated
        financial statements.

  <PAGE>

                       GSE SYSTEMS, INC. AND SUBSIDIARIES
                      CONSOLIDATED STATEMENTS OF OPERATIONS
                      (In thousands, except per share data)
                                   (Unaudited)

  <TABLE>
  <CAPTION>

                                                    Three months ended            Six months ended
                                                         June 30,                     June 30,
                                                     1999        1998             1999        1998
                                                    ------------------            ----------------
  <S>                                               <C>         <C>               <C>        <C>
  Contract revenue                                  $ 17,987    $ 16,722          $ 35,565   $ 34,176
  Cost of revenue                                     10,483      12,074            21,362     24,317
                                                    --------    --------          --------   --------
       Gross profit                                    7,504       4,648            14,203      9,859

  Operating expenses
       Selling, general and administrative             5,955       4,962            10,836     10,289
       Depreciation and amortization                     352         375               702        936
                                                    --------    --------          --------   --------
  Total operating expenses                             6,307       5,337            11,538     11,225
                                                    --------    --------          --------   --------

  Operating income (loss)                              1,197        (689)            2,665     (1,366)

  Gain on sale of assets                                 -         5,575              -         5,575
  Interest expense, net                                  (16)       (144)             (131)      (309)
  Other income (expense)                                  19         (84)               53        344
                                                    --------    --------          --------   --------

  Income before income taxes                           1,200       4,658             2,587      4,244

  Provision for income taxes                             457       1,893               985      1,933
                                                    --------    --------          --------   --------

  Net income                                        $    743    $  2,765          $  1,602   $  2,311
                                                    ========    ========          ========   ========

  Basic earnings per common share                     $ 0.15     $  0.55            $ 0.32    $  0.46
                                                    ========    ========          ========   ========

  Diluted earnings per common share                   $ 0.14     $  0.54            $ 0.31    $  0.45
                                                    ========    ========          ========   ========
  </TABLE>

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

<PAGE>

                       GSE SYSTEMS, INC. AND SUBSIDIARIES
                 CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
                                 (In thousands)
                                   (Unaudited)

  <TABLE>
  <CAPTION>

                                                    Three Months Ended            Six Months Ended
                                                         June 30,                     June 30,
                                                      1999      1998                1999      1998
                                                    --------  --------            --------  --------
  <S>                                               <C>        <C>                <C>       <C>
  Net income                                        $    743   $ 2,765            $  1,602    $ 2,311

  Other comprehensive income (loss):
     Foreign currency translation adjustment              91       169                  72         (5)

                                                    --------  --------            --------  ---------
Comprehensive Income                                $    834  $  2,934            $  1,674   $  2,306
                                                    ========  ========            ========  =========
 </TABLE>

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

<PAGE>


                       GSE SYSTEMS, INC. AND SUBSIDIARIES

                      CONSOLIDATED STATEMENTS OF CASH FLOWS

                                 (In thousands)

                                   (Unaudited)
  <TABLE>
  <CAPTION>


                                                                                For the six months ended

                                                                                        June 30,

                                                                                  1999             1998
                                                                                --------         --------
  <S>                                                                           <C>            <C>
  Cash flows from operating activities:
  Net income                                                                   $  1,602        $  2,311
  Adjustments to reconcile net income to net cash provided by
   operating activities:
     Depreciation and amortization                                                1,601           1,965
     Provision for doubtful contract receivables                                   (557)           (245)
     Amortization of fair value of warrants issued to non-employees                 120              60
     Deferred income taxes                                                          851           1,839
     Equity in loss of investee                                                     -               101
     Gain on sale of assets                                                         -            (5,575)
     Changes in assets and liabilities:
         Contract receivables                                                     6,446           3,954
         Inventories                                                               (317)            203
         Prepaid expenses and other assets                                       (1,999)           (794)
         Accounts payable and accrued expenses                                   (2,013)         (2,032)
         Billings in excess of revenues earned                                     (170)            497
         Accrued contract and warranty reserves                                      47             (66)
         Other current liabilities                                                1,205            (376)
         Income taxes payable                                                      (116)            116
         Other liabilities                                                          (23)             (1)
                                                                                -------         -------
  Net cash provided by operating activities                                       6,677           1,957
                                                                                -------         -------

  Cash flows from investment activities:
     Proceeds from sale of assets                                                   791           8,855
     Payment for acquired assets                                                   (300)
     Capital expenditures                                                        (1,020)         (1,283)
     Capitalization of software developent costs                                 (1,032)         (1,704)
                                                                                -------         -------
  Net cash provided by (used in) investing activities                            (1,561)          5,868
                                                                                -------         -------

  Cash flows from financing activities:
     Decrease in lines of credit with bank                                       (3,819)         (5,017)
     Repayments under capital lease obligations                                     (69)           (106)
     Decrease in notes payable to related parties                                    (8)            (12)
                                                                                -------         -------
  Net cash used in financing activities                                          (3,896)         (5,135)

  Effect of exchange rate changes on cash                                           (35)            (24)
                                                                                -------         -------
  Net increase in cash and cash equivalents                                       1,185           2,666
  Cash and cash equivalents at beginning of period                                2,240             334
  Cash and cash equivalents at end of period                                   $  3,425        $  3,000
                                                                                =======         =======

  </TABLE>

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



  <PAGE>

                       GSE SYSTEMS, INC. AND SUBSIDIARIES
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                  June 30, 1999
                                   (Unaudited)


  1.    Basis of Presentation

        The condensed  consolidated  financial  statements  included herein have
        been prepared by the Company without  independent  audit. In the opinion
        of the Company's management,  all adjustments and reclassifications of a
        normal and recurring  nature  necessary to present  fairly the financial
        position, results of operations and cash flows for the periods presented
        have been made. Certain  information and footnote  disclosures  normally
        included in financial  statements  prepared in accordance with generally
        accepted  accounting  principles  have been condensed or omitted.  It is
        suggested that these condensed consolidated financial statements be read
        in  conjunction  with the  consolidated  financial  statements and notes
        thereto  included in the  Company's  Annual  Report on Form 10-K for the
        period ended  December 31, 1998 filed with the  Securities  and Exchange
        Commission on March 31, 1999.

  2.    Acquisitions and Dispositions

        Acquisitions

        In April,  1999, the Company  completed two acquisitions for the Process
        business unit using the purchase method of accounting.  On April 20, the
        Company purchased certain assets and employed the associates of BatchCAD
        Limited, a United  Kingdom-based  supplier of batch process  development
        and design  consulting  services  and  simulation  software  tools.  The
        purchase  price  was  approximately  $548,000  payable  in  three  equal
        installments  on  January 1, 2000,  2001 and 2002 and was  allocated  as
        follows:

        <TABLE>
        <CAPTION>
        <S>                                        <C>
        Property and Equipment                     $   22,000
        Trade Receivables                              45,000
        Purchased Software (Property and Equipment)   481,000
                                                    ---------
                                                   $  548,000

        </TABLE>

        On April  30,  the  Company  acquired  all  proprietary  technology  and
        software assets from, and assumed  substantially all customer  contracts
        of, Mitech  Corporation,  a Massachusetts  company and supplier of event
        and alarm  management and reporting  software tools.  The purchase price
        was  $350,000  (consisting  of $300,000 in cash and %50,000  payable one
        year from the closing) and was allocated  100% to property and equipment
        as purchased software.

        Dispositions

        On May 1, 1998, the Company  completed the sale of substantially  all of
        the  assets of GSE  Erudite  Software,  Inc.("Erudite")  to Keane,  Inc.
        ("Keane"),  pursuant to an Asset Purchase  Agreement,  dated as of April
        30, 1998,  by and among the Company,  Erudite and Keane.  The  aggregate
        purchase  price for the Erudite  assets was  approximately  $9.9 million
        (consisting  of $8.9  million in cash and $1.0 million in the form of an
        unsecured  promissory  note due on April 30,  1999,  subject  to certain
        adjustments).  In  connection  with  the  transaction,  Keane  purchased
        certain  assets with a book value of $4.4  million  and assumed  certain
        operating  liabilities totaling  approximately $2.2 million. The Company
        recognized  a gain  before  income  taxes  on this  transaction  of $5.6
        million.  In connection with the sale of these assets, the Company wrote
        off approximately $800,000 in capitalized software development costs, as
        well as $321,000 of purchased software,  since all operations that would
        support the  recoverability  of these costs were sold.  The write-off of
        these costs was reflected in the calculation of the gain on the sale.

    3.  Basic and Diluted Loss Per Common Share

        Basic  earnings  per share is based on the  weighted  average  number of
        outstanding  common  shares for the period.  Diluted  earnings per share
        adjusts  the  weighted  average  shares outstanding  for  the  potential
        dilution  that  could  occur  if  stock   options,   warrants  or  other
        convertible securities were exercised or converted into common stock.

  <PAGE>
        The number of common  shares and common  share  equivalents  used in the
        determination of basic and diluted earnings per share was as follows:

  <TABLE>
  <CAPTION>
                                                          Three months ended              Six months ended
                                                               June 30,                      June 30,
                                                           1999         1998              1999         1998
                                                        ----------------------         ----------------------

        <S>                                             <C>          <C>               <C>          <C>

        Weighted average shares outstanding:
          Basic                                         5,065,688    5,065,688         5,065,688    5,065,688
                                                        ==========   =========         =========    =========
          Diluted                                       5,274,451    5,131,851         5,246,622    5,097,869
                                                        ==========   =========         =========    =========
  </TABLE>

        The difference  between the basic and diluted number of weighted average
        shares  outstanding  for both periods  represents  dilutive  options and
        warrants to purchase shares of common stock  computed under the treasury
        stock method, using the average market price during the period.

  4.    Inventories

        Inventories  are  stated  at the  lower of cost,  as  determined  by the
        average  cost method,  or market.  Obsolete or  unsaleable  inventory is
        reflected at its estimated net realizable value.

        Inventories, net, consist of the following at:
  <TABLE>
  <CAPTION>

                                                        (in thousands)
                                                 June 30,             December 31,
                                                   1999                   1998
                                                 --------             ------------

         <S>                                     <C>                  <C>

         Raw materials                           $ 2,366              $ 1,873
         Service parts                               842                1,019
                                                 -------              -------
                     Total                       $ 3,208              $ 2,892
                                                 =======              =======
  </TABLE>

  5.    Financing Arrangements

        On June 4, 1999, the Company  entered into a loan and security agreement
        with a financial  institution  for a new credit facility with a maturity
        date of May 31, 2002. Borrowings from this facility were used to pay off
        the existing debt under the Company's previous credit facility.  The new
        agreement  established  two lines of bank credit,  through the Company's
        subsidiaries, which are cross-collateralized, and provide for borrowings
        up to a total of $9.0  million  to  support  foreign  letters of credit,
        margin  requirements of foreign  exchange  contracts and working capital
        needs.

        The  first  line,  for $6.0  million,  used by the Power  business  unit
        ("Power"),  is 90%  guaranteed by the  Export-Import  Bank of the United
        States   ("EXIM")   through  March  31,  2000,  is   collateralized   by
        substantially  all of Power's assets,  and provides for borrowings up to
        90% of eligible receivables and 50% of unbilled receivables.  The second
        line, for $3.0 million,  used by the Process business unit  ("Process"),
        is collateralized by substantially all of Process' assets,  and provides
        for  borrowing  up to  85%  of  eligible  receivables.  Both  lines  are
        guaranteed by the Company and collateralized by substantially all of the
        Company's assets.

  <PAGE>

        The lines  require the Company to comply with certain  financial  ratios
        and preclude the Company from paying  dividends and making  acquisitions
        beyond  certain limits  without the bank's  consent.  The Company was in
        compliance with all covenants as of June 30, 1999.

        In 1998, in connection with the Company's previous credit facility,  the
        Company had arranged for certain guarantees to be provided on its behalf
        by GP Strategies Corporation ("GP Strategies") and ManTech International
        Corporation ("ManTech"),  both of which are shareholders of the Company.
        (These  guarantees  have been reissued for the new credit  facility.) In
        consideration for these guarantees,  the Company granted each of ManTech
        and GP Strategies  warrants to purchase  shares of the Company's  common
        stock;  each of such  warrants  provides  the right to purchase at least
        150,000  shares of the  Company's  common stock at an exercise  price of
        $2.375  per  share.  In  1998,  the  Company  recorded  $300,000  as the
        estimated  fair value of such  warrants  in the  consolidated  financial
        statements  and  amortized  such  value  over  the  life of the  initial
        guarantee,  which  expired in June,  1999.  The Company  has  recognized
        $60,000 and $120,000 of expense  related to these warrants for the three
        and six months ended June 30, 1999, respectively.  The fair value of the
        warrants  was  determined  using  the  Black-Scholes   valuation  model.
        Assumptions used in the calculation  were as follows:  dividend yield of
        0%, expected volatility of 61%, risk-free interest rates of 5.6% and
        expected terms of 2.5 years.

  6.    Income Taxes

        The Company's  effective tax rate is based on the best current  estimate
        of its expected  annual  effective tax rate. The difference  between the
        statutory  U.S. tax rate and the  Company's  effective  tax rate for the
        three and six  months  ended  June 30,  1999,  is  primarily  due to the
        effects of foreign  operations  being taxed at different rates and state
        income taxes.

  7.    Segment reporting

        The Company is primarily  organized on the basis of two business  units,
        Process and Power. The Company has a wide range of knowledge  concerning
        control and  simulation  systems  and the  processes  those  systems are
        intended  to improve,  control and model.  The  Company's  knowledge  is
        concentrated  heavily  in the  process  industries,  which  include  the
        chemical,  food and beverage,  and pharmaceutical  fields, as well as in
        the power  generation  industry.  The Process business unit is primarily
        engaged in process  control and  simulation  in a variety of  commercial
        industries.  Contracts  typically  range from three to nine months.  The
        Power  business unit is primarily  engaged in  simulation  for the power
        generation  industry,  with the vast majority of customers  being in the
        nuclear  power  industry.  Contracts  typically  range from 18 months to
        three years or longer.

        GSE evaluates the performance of its business units utilizing  "Business
        Unit Contribution", which is substantially equivalent to earnings before
        interest and taxes ("EBIT")  before  allocating any corporate  expenses.
        The segment information regarding two businesses divested during 1998 is
        included in "All Other".

 The table below presents information about reported segments:

<TABLE>
<CAPTION>

                                                                  (in thousands)
                                       Three Months Ended June 30,               Six Months Ended June 30,
                                 --------------------------------------    --------------------------------------
                                                   1999                                      1999
                                 --------------------------------------    --------------------------------------
                                   Process        Power         Total        Process        Power         Total
<S>                                <C>            <C>         <C>            <C>            <C>         <C>
Contract revenue                   $  9,748      $  8,239     $  17,987      $ 19,964     $ 15,601     $   35,565
                                 ==========     =========     =========    ==========     =========     =========
Business unit contribution         $  1,141      $  1,393     $   2,534      $  2,744      $  2,610     $   5,354
                                 ==========     =========     =========    ==========     =========     =========

                                                   1998                                      1998
                                 --------------------------------------    --------------------------------------
                                   Process        Power         Total        Process        Power         Total
<S>                                <C>            <C>         <C>            <C>            <C>         <C>
Contract revenue                   $  7,563      $  7,443     $  15,006      $ 14,470      $ 13,302     $  27,772
                                 ==========     =========     =========    ==========     =========     =========
Business unit contribution         $    128      $  1,135     $   1,263      $   235      $  2,042     $    2,277
                                 ==========     =========     =========    ==========     =========     =========
</TABLE>

Below is a  reconciliation  of segment revenue to consolidated  contract revenue
and segment business unit contribution to consolidated income before taxes.

<TABLE>
<CAPTION>

                                                   (in thousands)
                                             Three Months Ended June 30,          Six Months Ended June 30,
                                             ----------------------------       ----------------------------
                                                 1999             1998              1999             1998
                                             ----------         ---------       ----------         ---------
<S>                                          <C>                <C>             <C>                <C>
Total segment revenue                        $   17,987         $  15,006       $   35,565         $  27,772
All other                                             0             1,716                0             6,404
                                             ----------         ---------       ----------         ---------
     Consolidated contract revenue           $   17,987         $  16,722       $   35,565         $  34,176
                                             ==========         =========       ==========         =========

Segment business unit contribution           $    2,534         $   1,263       $    5,354         $   2,277
All other business unit contribution (loss)           0              (618)               0              (491)
Corporate expenses                               (1,318)           (1,418)          (2,636)           (2,808)
Gain on sale of assets                                0             5,575                0             5,575
Interest expense, net                               (16)             (144)            (131)             (309)
                                             ----------         ---------       ----------         ---------
Consolidated income before taxes             $    1,200         $   4,658       $    2,587         $   4,244
                                             ==========         =========       ==========         =========
</TABLE>


  8.    Recent Pronouncements

  In June,  1998, the Financial  Accounting  Standards Board issued Statement of
  Financial  Accounting  Standards ("SFAS") No. 133,  "Accounting for Derivative
  Instruments and Hedging  Activities."  This statement  requires that an entity
  recognize all  derivatives as either assets or liabilities in the statement of
  financial  position and measure those  instruments at fair value.  The Company
  will be  required  to adopt this new  accounting  standard by January 1, 2001.
  Management does not anticipate  early adoption.  The Company believes that the
  effect of adopting SFAS No. 133 will not be material.

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

  General Business Environment

  GSE Systems, Inc. (the "Company") designs,  develops and delivers business and
  technology solutions by applying high  technology-related  process control and
  high fidelity  simulation systems and services into applications for worldwide
  industries,   including  energy  and  process  manufacturing.   The  Company's
  solutions  and services  assist  customers in  improving  quality,  safety and
  throughput; reducing operating expenses; and enhancing overall productivity.

  In 1998, the Company  divested the assets of its Oil and Gas business unit and
  of its wholly owned  subsidiary GSE Erudite  Software,  Inc. and refocused its
  attention  on its two core  business  units,  Power  and  Process.  The  Power
  business unit primarily provides  simulation systems and services to the power
  generation  industry,  while the Process  business  unit  focuses on providing
  process control and simulation in various process industries.  For a breakdown
  of relevant  financial  information  by segment,  see Note 7 to the  Condensed
  Consolidated Financial Statements, above.

  The Company has begun the pursuit of strategic growth  opportunities that will
  complement the Company's core businesses and can be effected without diverting
  the focus of the Company.  In April,  1999,  the Company  completed  two asset
  purchase  transactions for the Process business unit. On April 20, the Company
  purchased  certain assets and employed the associates of BatchCAD  Limited,  a
  United  Kingdom  based  supplier  of  batch  process  development  and  design
  consulting services and simulation software tools. With this acquisition,  the
  Company has gained a presence in the United  Kingdom with an office in Hexham,
  England,  which will provide the baseline for future  expansion in the region.
  On April 30, the Company  acquired  all  proprietary  technology  and software
  assets from,  and assumed  substantially  all customer  contracts  of,  Mitech
  Corporation,   a  Massachusetts  company  and  supplier  of  event  and  alarm
  management and reporting software tools. Both of these acquisitions have added
  to the current  customer base of GSE Systems,  and offer new  opportunities in
  promoting the Company's existing products and services.

  On May 24,  1999,  the Company  announced  their new  business  and  marketing
  strategy called  VirtualPlant(TM).  VirtualPlant(TM)  combines the benefits of
  real-time  simulation  with  control  systems  to  create a  living,  learning
  real-time representation of an operating plant. VirtualPlant(TM) also allows a
  company to create an environment for simulation  rather than  experimentation.
  Based  on  sophisticated  simulation  technologies  and  expert  knowledge  of
  processing  realities,  VirtualPlant(TM)is  a fully integrated,  comprehensive
  program of customizable software, consulting services and training that energy
  and process  manufacturing  companies can use to  dramatically  reduce time to
  market,  minimize  development costs, achieve greater optimization and improve
  overall profitability.


  <PAGE>
  Results of Operations

  The  following  table sets forth the  results of  operations  for the  periods
  presented expressed as a percentage of revenues (in thousands).

  <TABLE>
  <CAPTION>
                                                    Three months ended June 30,                   Six months ended June 30,
                                               ------------------------------------         ------------------------------------
                                                1999        %      1998        %             1999       %        1998        %
                                               ----------------   -----------------         ----------------    ----------------

  <S>                                          <C>       <C>      <C>        <C>            <C>       <C>       <C>       <C>

  Contract revenue                            $17,987    100.0%  $16,722     100.0%        $35,565    100.0%   $34,176    100.0%
  Cost of revenue                              10,483     58.3%   12,074      72.2%         21,362     60.1%    24,317     71.2%
                                               ------             ------                    ------              ------
  Gross profit                                  7,504     41.7%    4,648      27.8%         14,203     39.9%     9,859     28.8%
  Operating expenses:
     Selling, general and administrative        5,955     33.1%    4,962      29.7%         10,836     30.5%    10,289     30.1%
     Depreciation and amortization                352      2.0%      375       2.2%            702      2.0%       936      2.7%
                                               ------             ------                    ------              ------
  Total operating expenses                      6,307     35.1%    5,337      31.9%         11,538     32.4%    11,225     32.8%
                                               ------             ------                    ------              ------



  Operating income (loss)                       1,197      6.7%     (689)     -4.1%          2,665      7.5%    (1,366)    -4.0%

  Gain on sale of assets                            -      0.0%    5,575      33.3%              -      0.0%     5,575     16.3%
  Interest expense, net                           (16)    -0.1%     (144)     -0.8%           (131)    -0.4%      (309)    -0.9%
  Other income(expense)                            19      0.1%      (84)     -0.5%             53      0.1%       344      1.0%
                                               ------             ------                   -------              ------
  Income before income taxes                    1,200      6.7%    4,658      27.9%          2,587      7.3%     4,244     12.4%

  Provision for income taxes                      457      2.5%    1,893      11.3%            985      2.8%     1,933      5.7%
                                               ------            -------                   --------             ------
  Net income                                   $  743      4.1%  $ 2,765      16.5%        $  1,602     4.5%    $2,311      6.8%
                                               ======            =======                   ========             ======

  </TABLE>

  Revenues.  Revenues for the three and six months ended June 30, 1999  amounted
  to $18.0 million and $35.6 million, respectively, as compared with revenues of
  $16.7  million  and $34.2  million in the three and six months  ended June 30,
  1998,  respectively.  Included in the June 30, 1998 results  were  revenues of
  $1.3 (three month period) and $5.3 million (six month  period)  related to the
  Company's  Erudite  subsidiary  and $.4 million  (three month period) and $1.1
  million  (six month  period) of revenues  related to its Oil and Gas  business
  unit. As previously disclosed, the assets of these businesses were divested in
  1998. A 38% increase  (year-to-date)  in the Process  business unit's revenues
  and a 17%  increase  (year-to-date)  in the  Power  business  unit's  revenues
  resulting  from  increased  orders  off set  the  reduction  in the  Company's
  revenues from these dispositions.


  Gross Profit. Gross profit increased to $7.5 million,  (41.7% of revenues) for
  the three months  ended June 30, 1999 from $4.6  million  (27.8% of revenues )
  for the  corresponding  period  in  1998.  This  increase  reflects  a  higher
  component  of upgrade  projects in the Process  business  unit in 1999 than in
  1998,  mainly due to customer  concerns about Year 2000 date  calculations  in
  their existing process control software.  Such upgrade projects typically have
  less  hardware  and  instumentation  components  and  more  license  fees  and
  application  engineering  work. Gross profit for the six months ended June 30,
  1999 as compared to the same period in the prior year, reflected similar
  improvements.

  Selling,   General  and   Administrative   Expenses.   Selling,   general  and
  administrative  ("SG&A")  expenses  totaled  $6.0  million in the three months
  ended June 30,  1999, a 20% increase  from the  corresponding  period in June,
  1998.  (Included in the 1998 costs was $796,000 related to Erudite and the Oil
  and Gas  business.)  The  increase  reflects  additional  sales and  marketing
  personnel in the Process  business unit,  increased  advertising and promotion
  related to the  Company's  VirtualPlant  (TM) suite of products and  services,
  acquisition  costs of the BatchCAD assets,  internal Y2K compliance  programs,
  and legal fees  related to the  Company's  new  credit  facility.  For the six
  months ended June 30, 1999,  SG&A expenses  increased  5.3% as compared to the
  six months ended June 30, 1998; however,  after excluding the costs related to
  Erudite and the Oil and Gas business in 1998  ($1,979),  SG&A  increased  30%.
  This  increase is due to the same reasons  outlined for the three months ended
  June 30, 1999.

  Gross research and product  development  expenditures were $1.3 million in the
  three  months  ended June 30, 1999 versus $1.4  million for the same period in
  1998.Capitalized  software development costs totaled $586,000 and $1.0 million
  for the  second  quarter  of 1999 and  1998,  respectively;  accordingly,  net
  research and development costs expensed and included in SG&A were $714,000 and
  $400,000 for the three months ended June 30, 1999 and 1998, respectively.  The
  Company continues to invest in the conversion of its D/3 DCS,  FlexBatch,  and
  SimSuite  Pro  products  to the  Microsoft  Windows  NT(R)  platform  and  the
  productization  of its SimSuite  software tools. For the six months ended June
  30, 1999, gross research and development expenditures, capitalized development
  costs,  and net  research  and  development  costs  expensed in SG&A were $2.4
  million, $1.7 million and $.7 million, respectively, versus $2.5 million, $1.7
  million and $.8 million, respectively, for the comparable period in 1998.

  Depreciation and Amortization.  Depreciation  expense amounted to $250,000 and
  $294,000  during  the three  months  ended  June 30,  1999 and June 30,  1998,
  respectively.  During the six months  ended June 30,  1999 and June 30,  1998,
  depreciation expense was $508,000 and $772,000,  respectively. The decrease in
  depreciation  expense  reflects the disposition of the Erudite and Oil and Gas
  assets in 1998.

<PAGE>

  Amortization  of goodwill  was  $102,000  and $81,000  during the three months
  ended June 30,  1999 and June 30,  1998,  respectively.  During the six months
  ended June 30, 1999 and 1998, goodwill amortization was $194,000 and $164,000,
  respectively.

  Operating Income (loss) . Operating income for the three months ended June 30,
  1999, increased to $1.2 million, or 6.7% of revenues, from ($.7 million) loss,
  or (4.1%) of revenues,  during the  corresponding  period of 1998. For the six
  months ended June 30, 1999, operating income increased to $2.7 million or 7.5%
  of revenues  from a loss of ($1.4  million) or (4.0%) of revenues  for the six
  months  ended June 30, 1998.  This  significant  increase in operating  income
  reflects the disposition of unprofitable businesses,  increases in revenues in
  the core business units, and improved contract margins.

  Interest  Expense,  net. Net interest expense  decreased to $16,000 during the
  three  months  ended June 30, 1999,  an 88%  decrease  from the  corresponding
  period in 1998.  The decrease  was due to lower  levels of  borrowing  and the
  receipt of $60,000 of interest  income on the Keane note  receivable.  For the
  six months ended June 30, 1999, net interest  expense totaled  $131,000 versus
  $309,000 for the comparable period in 1998.

  Gain on Sale of Assets.  For the three and six months ended June 30, 1998, the
  Company  recognized a gain of $5.6 million on the sale of the Erudite  assets.
  The sale and  related  gain  are  described  more  fully  under  Note 2 to the
  Condensed Consolidated Financial Statements, above.

  Other  Income.  Other  income  fluctuated  significantly  during  the  periods
  presented  primarily due to the effect of gains and losses on foreign currency
  transactions from the Company's Asian operations in 1998.

  Income Taxes.  The  Company's  effective tax rate is based on the best current
  estimate of its expected annual effective tax rate. The difference between the
  statutory  U.S. tax rate and the  Company's  effective  tax rate for the three
  months and six months ended June 30, 1999 and June 30, 1998 is  primarily  the
  result of the  effects of foreign  operations  being  taxed at  different  tax
  rates,  state income taxes, and a valuation  allowance  against all of the net
  operating  losses  generated  during the three and six  months  ended June 30,
  1998.

  Liquidity and Capital Resources

  During the six months ended June 30, 1999, the Company's  operations  provided
  $6.6 million of net cash,  primarily resulting from collection of receivables.
  At June  30,  1999,  the  Company  had  cash  and  cash  equivalents  totaling
  approximately $3.4 million.

  Cash used in investing  activities during the first six months of 1999 of $1.6
  million  relates  primarily  to  the  Company's   capitalization  of  software
  development  costs and normal  capital  expenditures  off set by  $791,000  of
  proceeds from asset sales.

  On June 4, 1999, the Company entered into a loan and security agreement with a
  financial  institution  for a new credit  facility with a maturity date of May
  31, 2002. Borrowings from this facility were used to pay off the existing debt
  under the Company's previous credit facility. These lines of credit, which are
  cross-collateralized,  provide for borrowings up to a total of $9.0 million to
  support foreign  letters of credit,  margin  requirements or foreign  exchange
  contracts and working capital needs. See Note 5 to the Condensed  Consolidated
  Financial  Statements above, for complete details about these lines of credit.
  Borrowings under the lines of credit were reduced by $3.8 million in the first
  six months of 1999.  At June 30, 1999,  there were $2.9 million in  borrowings
  under these lines of credit.

  Management  believes the Company has sufficient  liquidity and working capital
  resources  necessary for currently planned business  operations,  debt service
  requirements, planned investments and capital expenditures.

  Impact of the "Year 2000" Issue

  The  "Year  2000"  issue,  which  arises  in date  calculations,  is caused by
  computer  systems using two digits  rather than four to define the  applicable
  year.  After December 31, 1999, such systems may recognize "00" as 1900 rather
  than 2000.  This could result in a system  failure or  miscalculation  causing
  disruptions  to  operations,   including,  among  other  things,  a  temporary
  inability  to  process  data or  engage  in  normal  business  operations  and
  activities.

  To address  these  contingencies,  the Company  has  instituted  a  compliance
  program  covering  not  only the  Company's  products,  but also its  internal
  administrative  and  financial  systems.  The  program is intended to minimize
  significant  detrimental  effects  on both the  Company's  operations  and the
  software products it develops and markets to its customers.

  While the Company  believes that it has  identified  substantially  all of the
  potential  "Year 2000"  problems  which could affect  current  versions of its
  products,  it is not  possible  to  determine  with  certainty  that  all such
  problems have been  identified or corrected,  with either current  products or
  previous versions thereof,  due both to the complexity of these products,  and
  the fact that they interact with products of third party vendors not under the
  Company's control.

  The Company also relies on various  administrative and financial  applications
  of computer products and software, including processing of customer orders and
  collection of customer  accounts,  which require correction to properly handle
  "Year 2000" related  dates.  In the event that one or more of these systems is
  not  adequately  corrected,  the Company's  ability to obtain  customers,  and
  schedule  and  fulfill  their  demands,  could  be  impaired.  Further,  if  a
  collection  processing  system,  or a  component  thereof,  were to fail,  the
  Company may not be able to properly  determine and apply  payments to customer
  account balances or correctly determine cash balances.  While these events are
  possible,  the Company  anticipates  that the breadth of its customer base and
  its  compliance  programs  and  corrective  measures  taken  will  effectively
  minimize the effects of such interruptions  without significant adverse effect
  on the Company.  However,  there can be no assurance that such events will not
  have  a  material  adverse  effect  on  the  Company's  business,  results  of
  operations, business prospects, or financial performance and condition.

  The Company estimates that the aggregate cost to address the "Year 2000" issue
  will not exceed  approximately $1.9 million in 1999. The Company believes that
  most of the customer related costs associated with the "Year 2000" issue would
  have  occurred as part of its normal  operations.  The Company  does not track
  these costs  separately.  Of the amount to be  expended  in 1999,  the Company
  believes  that  approximately  $225,000,  primarily  related  to  upgrades  to
  internal systems,  is incremental to normal operating costs. While the Company
  believes  its  efforts  will  provide   reasonable   assurance  that  material
  disruptions to its internal systems and installed products will not occur, the
  potential for  interruption  still exits.  There can be no assurance  that the
  cost estimates  associated  with the Company's "Year 2000" issue will prove to
  be accurate or that the actual costs will not have a material  adverse  effect
  on the Company's business, results of operation, or financial condition.

  <PAGE>

  Item 3. Quantitative and Qualitative Disclosure about Market Risk.

  The  Company's  market  risk is  principally  confined  to  changes in foreign
  currency  exchange  rates and  potentially  adverse  effects of differing  tax
  structures.  The  Company's  exposure to foreign  exchange  rate  fluctuations
  arises in part from  inter-company  accounts  in which  costs  incurred in one
  entity are charged to other entities in different foreign  jurisdictions.  The
  Company is also exposed to foreign exchange rate fluctuations as the financial
  results  of all  foreign  subsidiaries  are  translated  into U.S.  dollars in
  consolidation.  As exchange rates vary, those results when translated may vary
  from expectations and adversely impact overall expected profitability.

  The Company is also subject to market risk  related to the  interest  rates on
  its existing lines of credit.  Such interest rates are currently  based on the
  prime rate plus three percent.

  PART II - OTHER INFORMATION

  Item 1. Legal Proceedings

  In  accordance  with its conduct in the ordinary  course of business,  certain
  actions and  proceedings  are pending to which the Company is a party.  In the
  opinion of management,  the aggregate  liabilities,  if any, arising from such
  actions are not expected to have a material  adverse  effect on the  financial
  condition of the Company.

  Item 2. Changes in Securities and Use of Proceeds
          None

  Item 3. Defaults Upon Senior Securities
          None

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

  <TABLE>
  <CAPTION>
  <S>     <C>                          <C>          <C>          <C>              <C>
                                                                                   Votes
          Proposal                     For          Against      Abstain          Withheld

  1)  Election of Directors
      Christopher M. Carnavos       4,184,116                                      2,151
      Sheldon L. Glashow            4,184,116                                      2,151
      Scott N. Greenberg            4,184,116                                      2,151


  2)  To amend the Company's
      1995 Long-Term Incentive      3,925,716       253,651       6,900              -
      Plan

  3)  Ratification of
      PricewaterhouseCoopers LLP
      as Independent Accountants    4,167,116         2,151      17,000

  </TABLE>


  <PAGE>

  Item 5. Other Information

  Forward-Looking Statements

  This Form 10-Q contains certain forward-looking statements, within the meaning
  of Section 27A of the Securities  Act of 1933, as amended,  and Section 21E of
  the Securities Exchange Act of 1934, as amended, which are subject to the safe
  harbors  created  by those  Acts.  These  statements  include  the  plans  and
  objectives of management for future operations, including plans and objectives
  relating to the  development  of the  Company's  business in the  domestic and
  international  marketplace.  All forward-looking  statements involve risks and
  uncertainties,  including, without limitation, risks relating to the Company's
  ability to enhance existing software products and to introduce new products in
  a timely and cost  effective  manner,  reduced  development  of nuclear  power
  plants that may utilize the Company's products, a long pay-back cycle from the
  investment in software development, uncertainties regarding the ability of the
  Company to grow its revenues and  successfully  integrate  operations  through
  expansion of its existing business and strategic acquisitions,  the ability of
  the  Company  to  respond  adequately  to rapid  technological  changes in the
  markets for process control and simulation  software and systems,  significant
  quarter-to-quarter volatility in revenues and earnings as a result of customer
  purchasing  cycles  and other  factors,  dependence  upon key  personnel,  and
  general market  conditions and  competition.  The  forward-looking  statements
  included herein are based on current  expectations that involve numerous risks
  and  uncertainties as set forth herein,  the failure of any one of which could
  materially adversely affect the operations of the Company. The Company's plans
  and objectives are also based on the  assumptions  that market  conditions and
  competitive  conditions  within the Company's  business  areas will not change
  materially or adversely and that there will be no material  adverse  change in
  the Company's  operations or business.  Assumptions  relating to the foregoing
  involve  judgments  with  respect to,  among other  things,  future  economic,
  competitive and market conditions and future business decisions,  all of which
  are difficult or impossible to predict accurately and many of which are beyond
  the control of the Company. Although the Company believes that the assumptions
  underlying  the  forward-looking   statements  are  reasonable,   any  of  the
  assumptions could be inaccurate and there can, therefore, be no assurance that
  the  forward-looking  statements  included  in this Form 10-Q will prove to be
  accurate.  In  light  of  the  significant   uncertainties   inherent  in  the
  forward-looking  statements included herein, the inclusion of such information
  should not be regarded as a representation  by the Company or any other person
  that the objectives and plans of the Company will be achieved.

  Item 6. Exhibits and Reports on Form 8-K

          (a)   Exhibit Index

          The following exhibits are filed herewith.
  <PAGE>

  <TABLE>
  <CAPTION>
                                   EXHIBIT INDEX

<S>     <C>                 <C>
Exhibit No.                 Description
- -----------                 -----------


10.22  Loan and Security  Agreement  among GSE Power Systems,  Inc., GSE Process
       Solutions,   Inc.,  GSE  Systems,   Inc.  MSHI,  Inc.,  GP  International
       Engineering & Simulation,  Inc., and Dime Commercial Corp., dated June 4,
       1999.

10.23  Export-Import Bank of the United States Working Capital Guarantee Program
       Borrower  Agreement dated June 4, 1999 between the Export- Import Bank of
       the United States and GSE Power Systems,  Inc., and  acknowledged by Dime
       Commercial Corp.

10.24  $6,000,000   Promissory  Note  dated  June  4,  1999,  from  GSE  Process
       Solutions, Inc., and GSE Power Systems, Inc. to Dime Commercial Corp.

10.25  $3,000,000   Promissory  Note  dated  June  4,  1999,  from  GSE  Process
       Solutions, Inc., and GSE Power Systems, Inc. to Dime Commercial Corp.

10.26  ManTech  International  Corporation  Guarantee to Dime  Commercial  Corp.
       dated June 4, 1999.

10.27  GP Strategies, Inc.  Guarantee to Dime  Commercial  Corp.  dated June 4,
       1999.

       (b)  Reports on Form 8-K

            None
</TABLE>

 <PAGE>

                                SIGNATURES



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



  Date: August 13, 1999 GSE SYSTEMS, INC.


                           /S/ Christopher M. Carnavos
                           ---------------------------
                             Christopher M. Carnavos
                             President and Director
                          (Principal Executive Officer)





                             /S/ Jeffery G. Hough
                           ---------------------------
                               Jeffery G. Hough
                 Senior Vice President, Chief Financial Officer
                                  and Treasurer
                   (Principal Financial & Accounting Officer)


                          LOAN AND SECURITY AGREEMENT

                            DATED AS OF JUNE 4, 1999

                                     among

                            GSE POWER SYSTEMS, INC.,
                                  as Borrower,

                          GSE PROCESS SOLUTIONS, INC.,
                                  as Borrower,

                               GSE SYSTEMS, INC.,
                                 as Guarantor,

                                  MSHI, INC.,
                                 as Guarantor,

                GP INTERNATIONAL ENGINEERING & SIMULATION, INC.,
                                 as Guarantor,

                                      and

                             DIME COMMERCIAL CORP.,
                                    as Lender


                                TABLE OF CONTENTS
                                                                            Page

SECTION 1.    DEFINITIONS                                                      1
     1.1      Certain Defined Terms                                            1
     1.2      Accounting Terms                                                15
     1.3      Other Definitional Provisions                                   15

SECTION 2.    LOANS AND COLLATERAL                                            16
     2.1      Loans                                                           16
              (A)   Revolving Loan                                            16
              (B)   Eligible Accounts and Inventory                           17
              (C)   Borrowing Mechanics                                       20
              (D)   Note                                                      21
              (E)   Evidence of Revolving Loan Obligations                    21
              (F)   Letters of Credit                                         21
                    (1)      Maximum Amount                                   21
                    (2)      Reimbursement                                    21
                    (3)      Conditions of Issuance                           22
                    (4)      Request for Letters of Credit                    22
              (G)   Other Letter of Credit Provisions                         22
                    (1)      Obligations Absolute                             22
                    (2)      Nature of Lender's Duties                        23
                    (3)      Liability                                        23
              (H)   Appointment of Borrower Representative                    24
     2.2      Interest                                                        24
              (A)   Rate of Interest                                          24
              (B)   Interest Periods                                          25
              (C)   Computation and Payment of Interest                       25
              (D)   Interest Laws                                             26
              (E)   Conversion or Continuation                                26
     2.3      Fees                                                            27
              (A)   Unused Line Fee                                           27
              (B)   Letter of Credit Fees                                     27
              (C)   Audit Fees                                                27
              (D)   Collateral Monitoring                                     27
              (E)   Other Fees and Expenses                                   27
              (F)   Fees Non-Refundable                                       28
     2.4      Payments and Prepayments                                        28
              (A)   Manner and Time of Payment                                28
              (B)   Mandatory Prepayments, etc.                               28
                    (1)      Overadvance                                      28
                    (2)      Proceeds of Asset Dispositions                   28
              (C)   Voluntary Prepayments and Repayments                      28
              (D)   Payments on Business Days                                 29
     2.5      Term of this Agreement                                          29
     2.6      Statements                                                      29
     2.7      Grant of Security Interest                                      29
     2.8      Capital Adequacy and Other Adjustments                          30
     2.9      Taxes                                                           30
              (A)      No Deductions                                          30
              (B)      Changes in Tax Laws                                    30
     2.10     Required Termination and Prepayment                             31
     2.11     Compensation                                                    32
     2.12     Booking of LIBOR Loans                                          32
     2.13     Assumptions Concerning Funding of LIBOR Loans                   32
     2.14     Allocation of Collateral                                        32
     2.15     Federal Assignment of Claims Act                                35

 SECTION 3.  CONDITIONS TO LOANS, ETC.                                        35
     3.1     Conditions to Loans, etc.                                        35
             (A)      Closing Deliveries                                      35
             (B)      Security Interests                                      35
             (C)      Closing Date Availability                               36
             (D)      Representations and Warranties                          36
             (E)      Fees                                                    36
             (F)      No Default                                              36
             (G)      Performance of Agreements                               36
             (H)      No Prohibition                                          36
             (I)      No Litigation                                           36
             (J)      Indebtedness                                            36
             (K)      Borrowing Base Certificate                              37
             (L)      Export Orders                                           37
     3.2     Additional Conditions to Loans to Fund Permitted Acquisitions    37

 SECTION 4.  REPRESENTATIONS AND WARRANTIES                                   37
     4.1     Organization, Powers, Capitalization                             37
             (A)      Organization and Powers                                 37
             (B)      Capitalization                                          37
     4.2     Authorization of Borrowing, No Conflict                          38
     4.3     Financial Condition                                              38
     4.4     Indebtedness and Liabilities                                     38
     4.5     Account Warranties                                               38
     4.6     Names                                                            39
     4.7     Locations; FEIN                                                  39
     4.8     Title to Properties; Liens                                       39
     4.9     Litigation; Adverse Facts                                        39
     4.10    Payment of Taxes                                                 39
     4.11    Performance of Agreements                                        40
     4.12    Employee Benefit Plans                                           40
     4.13    Intellectual Property                                            40
     4.14    Broker's Fees                                                    40
     4.15    Environmental Compliance                                         40
     4.16    Solvency                                                         40
     4.17    Disclosure                                                       40
     4.18    Insurance                                                        41
     4.19    Compliance with Laws                                             41
     4.20    Bank Accounts                                                    41
     4.21    Subsidiaries                                                     41
     4.22    Employee Matters                                                 41
     4.23    Governmental Regulation                                          42
     4.24    Real Property                                                    42

 SECTION 5.  AFFIRMATIVE COVENANTS                                            42
     5.1     Financial Statements and Other Reports                           42
             (A)      Monthly Financials                                      42
             (B)      Quarterly Financials                                    42
             (C)      Year-End Financials                                     43
             (D)      Accountants' Certification and Reports                  43
             (E)      Compliance Certificate                                  44
             (F)      Borrowing Base Certificates, Registers and Journals     44
             (G)      Reconciliation Reports and Listings and Agings          44
             (H)      Management Report                                       44
             (I)      Government Notices                                      45
             (J)      Events of Default, etc.                                 45
             (K)      Trade Names                                             45
             (L)      Locations                                               45
             (M)      Bank Accounts                                           45
             (N)      Litigation                                              45
             (O)      Projections                                             45
             (P)      Other Indebtedness Notices                              46
             (Q)      Other Information                                       46
             (R)      Opening Balance Sheet                                   46
             (S)      Public Filings                                          46
     5.2     Access to Accountants and Management                             46
     5.3     Inspection                                                       46
     5.4     Collateral Records                                               47
     5.5     Account Covenants; Verification                                  47
     5.6     Collection of Accounts and Payments;
                 Cash Management Arrangements                                 47
     5.7     Endorsement                                                      48
     5.8     Corporate Existence                                              48
     5.9     Payment of Taxes                                                 48
     5.10    Maintenance of Properties; Insurance                             48
     5.11    Compliance with Laws                                             49
     5.12    Further Assurances                                               49
     5.13    Collateral Locations                                             50
     5.14    Instruments; Chattel Paper                                       50
     5.15    Use of Proceeds and Margin Security                              50

 SECTION 6.  FINANCIAL COVENANTS                                              50
     6.1     Minimum EBITDA                                                   50
     6.2     Fixed Charge Coverage                                            51
     6.3     Tangible Net Worth                                               52
     6.4     EximBank Tangible Net Worth                                      52
     6.5     Leverage                                                         52

 SECTION 7.  NEGATIVE COVENANTS                                               52
     7.1     Indebtedness and Liabilities                                     52
     7.2     Guaranties                                                       52
     7.3     Transfers, Liens and Related Matters                             53
             (A)      Transfers                                               53
             (B)      Liens                                                   53
             (C)      No Negative Pledges                                     53
             (D)      No Restrictions on Distributions                        53
     7.4     Investments and Loans                                            54
     7.5     Restricted Junior Payments                                       54
     7.6     Restriction on Fundamental Changes                               54
     7.7     Transactions with Affiliates                                     57
     7.8     Environmental Liabilities                                        57
     7.9     Conduct of Business                                              57
     7.10    Compliance with ERISA                                            57
     7.11    Tax Consolidations                                               57
     7.12    Subsidiaries                                                     57
     7.13    Fiscal Year                                                      57
     7.14    Press Release; Public Offering Materials                         58
     7.15    Bank Accounts                                                    58
     7.16    Amendments.                                                      58

 SECTION 8.  DEFAULT, RIGHTS AND REMEDIES                                     58
     8.1     Event of Default                                                 58
             (A)      Payment                                                 58
             (B)      Default in Other Agreements                             58
             (C)      Breach of Certain Provisions                            58
             (D)      Breach of Warranty                                      58
             (E)      Other Defaults Under Loan Documents                     59
             (F)      Change in Control                                       59
             (G)      Involuntary Bankruptcy; Appointment of Receiver, etc.   59
             (H)      Voluntary Bankruptcy; Appointment of Receiver, etc.     59
             (I)      Liens                                                   60
             (J)      Judgment and Attachments                                60
             (K)      Dissolution                                             60
             (L)      Solvency                                                60
             (M)      Injunction                                              60
             (N)      Invalidity of Loan Documents                            60
             (O)      Failure of Security                                     60
             (P)      Damage, Strike, Casualty                                61
             (Q)      Licenses and Permits                                    61
             (R)      Forfeiture                                              61
             (S)      System Activities.                                      61
             (T)      Inactive Subsidiaries' Activities.                      61
             (U)      Material Adverse Change.                                61
     8.2     Suspension of Commitments                                        61
     8.3     Acceleration                                                     62
     8.4     Remedies                                                         62
     8.5     Appointment of Attorney-in-Fact                                  63
     8.6     Limitation on Duty of Lender with Respect to Collateral          63
     8.7     Application of Proceeds                                          63
     8.8     License of Intellectual Property                                 64
     8.9     Waivers, Non-Exclusive Remedies                                  64

 SECTION 9.  ASSIGNMENT AND PARTICIPATION; SETOFF                             64
     9.1     Assignments and Participations in Loans                          64
     9.2     Set Off and Sharing of Payments                                  65

 SECTION 10. MISCELLANEOUS                                                    65
     10.1    Expenses and Attorneys' Fees                                     65
     10.2    Indemnity                                                        66
     10.3    Amendments and Waivers                                           66
     10.4    Notices                                                          67
     10.5    Survival of Warranties and Certain Agreements                    68
     10.6    Indulgence Not Waiver                                            68
     10.7    Marshaling; Payments Set Aside                                   68
     10.8    Entire Agreement                                                 68
     10.9    Independence of Covenants                                        68
     10.10   Severability                                                     68
     10.11   Headings                                                         68
     10.12   APPLICABLE LAW                                                   69
     10.13   Successors and Assigns                                           69
     10.14   No Fiduciary Relationship; Limitation of Liabilities             69
     10.15   CONSENT TO JURISDICTION                                          69
     10.16   WAIVER OF JURY TRIAL                                             69
     10.17   Construction                                                     70
     10.18   Counterparts; Effectiveness                                      70
     10.19   No Duty                                                          70
     10.20   Year 2000                                                        70

 SECTION 11. GUARANTIES                                                       71
     11.1    Guaranty                                                         71
     11.2    Contribution with Respect to Guaranty Obligations.               71
     11.3    Obligations Absolute.                                            72
     11.4    WAIVER.                                                          73
     11.5    Recovery                                                         73
     11.6    Liability Cumulative                                             73



                           LOAN AND SECURITY AGREEMENT


  This LOAN AND SECURITY AGREEMENT is dated as of June 4, 1999, and entered into
among:

GSE POWER SYSTEMS, INC., a Delaware corporation ("Power"),
GSE PROCESS SOLUTIONS, INC., a Delaware corporation ("Process"),
(each a "Borrower" and, collectively, "Borrowers");
and
GSE SYSTEMS, INC., a Delaware corporation ("Systems");
MSHI, INC., a Virginia corporation ("MSHI");
GP INTERNATIONAL ENGINEERING & SIMULATION, INC., a Delaware corporation ("GRI")
(each(including, without limitation, Systems) a "Guarantor" and collectively the
"Guarantors");
and
DIME COMMERCIAL CORP., a New York corporation ("Lender").

     WHEREAS, all capitalized terms used herein are defined in Section 1 of this
Agreement;

     WHEREAS,  the Guarantors  and Borrowers  desire that Lender extend a credit
facility to Borrowers  to refinance  certain  indebtedness  of Borrowers  and to
provide working capital financing; and

     WHEREAS,  Borrowers and Guarantors desire to secure their obligations under
the Loan Documents by granting to Lender a first priority  security  interest in
and lien upon certain of their property; and

     WHEREAS,  all Borrowers and all  Guarantors  are willing to guaranty all of
the obligations of Borrowers to Lender under the Loan Documents;

     NOW,  THEREFORE,  in  consideration  of the  premises  and the  agreements,
provisions  and covenants  herein  contained,  Borrowers,  Guarantors and Lender
agree as follows:


                             SECTION 1. DEFINITIONS

     1.1 Certain Defined Terms. The following terms used in this Agreement shall
have the following meanings:

     "Accounts"  means  all  "accounts"  (as  defined  in  the  UCC),   accounts
receivable,  contract rights and general  intangibles  relating thereto,  notes,
drafts and other forms of obligations  owed to or owned by any Borrower  arising
or resulting from the sale of goods or the rendering of services.


     "Acquisition   Costs"  means  the  price,  cost  and  expenses  payable  in
connection with a Permitted Acquisition (including all transaction costs and all
indebtedness,  liabilities  and  contingent  obligations  incurred or assumed in
connection therewith.)

     "Adjustment  Date" means,  beginning on September 1, 1999, the first day of
each March,  June,  September or December next  succeeding the date on which the
Lender received the financial  statements  required to be delivered  pursuant to
subsection 5.1(B) for the most recently completed Fiscal Quarter,  together with
the  Compliance  Certificate  and the  Applicable  Margin Report  required to be
delivered pursuant to subsection 5.1(E) with such financial statements.

     "Affected Lender" has the meaning assigned to such term in subsection 2.11.

     "Affiliate"  means  any  Person  (other  than  Lender):   (a)  directly  or
indirectly  controlling,  controlled  by, or under common control with, any Loan
Party; (b) directly or indirectly owning or holding five percent (5%) or more of
any equity interest in Systems or any Borrower; (c) five percent (5%) or more of
whose  stock or other  equity  interest  having  ordinary  voting  power for the
election  of  directors  or the  power to  direct  or  cause  the  direction  of
management,  is directly or indirectly owned or held by Systems or any Borrower;
or (d)  which  has a senior  executive  officer  who is also a senior  executive
officer of Systems or any Borrower.  For purposes of this definition,  "control"
(including with correlative meanings,  the terms "controlling",  "controlled by"
and "under common control with") means the possession  directly or indirectly of
the power to direct or cause the direction of the  management  and policies of a
Person,  whether  through the  ownership  of voting  securities  or other equity
interest, or by contract or otherwise.

     "Agreement"  means this Loan and  Security  Agreement as it may be amended,
restated, supplemented or otherwise modified from time to time.

     "Allocable  Amount"  has the meaning  assigned  to such term in  subsection
11.2(B).

     "Applicable Base Rate Margin" means, at any date, the applicable percentage
set forth below opposite the Level of Rolling EBITDA as of such date:

<TABLE>
<CAPTION>
Level of Rolling EBITDA                              Applicable Base Rate Margin
- -----------------------                              ---------------------------
<S>                                                              <C>
Level I:  Rolling EBITDA is equal
to or less than $3,500,000                                       1.50%

Level II:  Rolling EBITDA is greater
than $3,500,000 but less than or
equal to $4,500,000                                              1.25%

Level III:  Rolling EBITDA is greater
than $4,500,000 but less than or equal
to $5,500,000                                                    1.00%

Level IV:  Rolling EBITDA is greater
than $5,500,000 but less than or equal
to $6,500,000                                                    .75%

Level V:  Rolling EBITDA is greater
than $6,500,000                                                  .50%

</TABLE>

; provided  that (a) the  Applicable  Base Rate  Margin  shall be that set forth
above  opposite  Level I from the Closing Date until the first  Adjustment  Date
occurring after the Closing Date, (b) the Applicable Base Rate Margin determined
for any  Adjustment  Date shall remain in effect  until a subsequent  Adjustment
Date for which  Rolling  EBITDA falls within a different  Level,  and (c) if the
financial  statements,  the related  Compliance  Certificate  and the Applicable
Margin  Report for any fiscal  period are not delivered by the date due pursuant
to subsections 5.1(B),  5.1(C) and 5.1(E), the Applicable Base Rate Margin shall
be that set forth above  opposite Level I until the next  subsequent  Adjustment
Date.

     "Applicable LIBOR Margin" means, at any date, the applicable percentage set
forth below opposite the Level of Rolling EBITDA as of such date:

<TABLE>
<CAPTION>

Level of Rolling EBITDA                                  Applicable LIBOR Margin
- -----------------------                                  -----------------------
<S>                                                              <C>

Level I:  Rolling EBITDA is equal to
or less than $3,500,000                                          3.50%

Level II:  Rolling EBITDA is greater
than $3,500,000 but less than or equal
to $4,500,000                                                    3.25%

Level III:  Rolling EBITDA is greater
than $4,500,000 but less than or equal
to $5,500,000                                                    3.00%

Level IV:  Rolling EBITDA is greater
than $5,500,000 but less than or equal
to $6,500,000                                                    2.75%

Level V:  Rolling EBITDA is greater
than $6,500,000                                                  2.50%

</TABLE>

; provided  that (a) the  Applicable  LIBOR Margin shall be that set forth above
opposite Level I from the Closing Date until the first Adjustment Date occurring
after the Closing  Date,  (b) the  Applicable  LIBOR Margin  determined  for any
Adjustment  Date shall remain in effect until a subsequent  Adjustment  Date for
which Rolling  EBITDA falls within a different  Level,  and (c) if the financial
statements,  the related Compliance Certificate and Applicable Margin Report for
any fiscal  period are not  delivered  by the date due  pursuant to  subsections
5.1(B),  5.1(C) and 5.1(E),  the Applicable LIBOR Margin shall be that set forth
above opposite Level I until the next subsequent Adjustment Date.

     "Applicable  Margin  Report"  has the  meaning  assigned  to  such  term in
subsection 5.1(E).


     "Asset  Disposition"  means  the  disposition,   whether  by  sale,  lease,
transfer, loss, damage, destruction, condemnation or otherwise, of any or all of
the assets of Systems, any Borrower or any of their respective Subsidiaries.

     "Bank  Letter of  Credit"  means  each  letter  of credit  issued by a bank
acceptable  to and  approved by the Lender for the account of any  Borrower  and
supported by a Risk Participation Agreement.

     "Base Rate" means a variable rate of interest per annum equal to the higher
of (a) the  rate of  interest  from  time  to  time  established  by Dime as its
reference lending rate for domestic  commercial loans at its principal  domestic
office,  or (b) the Federal  Funds  Effective  Rate plus one-half of one percent
(.50%).  Such  reference  lending  rate is merely a  reference  rate and may not
necessarily  represent the lowest or best rate actually  charged to any customer
by Lender or Dime.  Lender and Dime may make  loans to  customers  above,  at or
below such reference lending rate.

     "Base Rate Loans"  means Loans  bearing  interest  at rates  determined  by
reference to the Base Rate.

     "Blocked Accounts" has the meaning assigned to that term in subsection 5.6

     "Blocked  Account  Agreements"  has the  meaning  assigned  to such term in
subsection 5.6.

     "Borrower" and "Borrowers" have the meanings  assigned to such terms in the
preamble to this Agreement.

     "Borrower  Agreement"  means  the  Borrower  Agreement  referred  to in the
definition of Exim-Bank Documents herein.

     "Borrowing  Base"  has the  meaning  assigned  to such  term in  subsection
2.1(A)(2).

     "Borrowing Base  Certificate"  means a certificate and assignment  schedule
duly executed by an officer of Borrower  Representative  appropriately completed
and in substantially the form of Exhibit A.

     "Borrower  Representative"  has  the  meaning  assigned  to  such  term  in
subsection 2.1(H).

     "Business Day" means any day excluding  Saturday,  Sunday and any day which
is a legal  holiday under the laws of the State of New York or is a day on which
banking  institutions  located in such state are closed,  or for the purposes of
LIBOR  Loans  only,  a day on which  commercial  banks are open for  dealings in
Dollar deposits in the London, England (U.K.) market.


     "Capital Expenditures" means all expenditures  (including deposits) for, or
contracts for expenditures  (excluding  contracts for expenditures under or with
respect to Capital Leases,  but including cash down payments for assets acquired
under Capital Leases) with respect to any fixed assets or  improvements,  or for
replacements,  substitutions or additions  thereto,  which have a useful life of
more than one year,  including the direct or indirect acquisition of such assets
by way of increased product or service charges, offset items or otherwise.

     "Capital Lease" means any lease of any property (whether real,  personal or
mixed) that,  in  conformity  with GAAP,  should be  accounted  for as a capital
lease.

     "Cash  Equivalents"  means:  (a) marketable  direct  obligations  issued or
unconditionally  guaranteed  by the United  States  Government  or issued by any
agency thereof and backed by the full faith and credit of the United States,  in
each case maturing  within six (6) months from the date of acquisition  thereof;
(b)  commercial  paper maturing no more than six (6) months from the date issued
and, at the time of acquisition, having a rating of at least A-1 from Standard &
Poor's  Corporation or at least P-1 from Moody's  Investors  Service,  Inc.; (c)
certificates of deposit or bankers'  acceptances  maturing within six (6) months
from the date of issuance  thereof  issued by, or overnight  reverse  repurchase
agreements  from,  any commercial  bank  organized  under the laws of the United
States of  America or any state  thereof  or the  District  of  Columbia  having
combined  capital and surplus of not less than  $250,000,000  and not subject to
setoff  rights in favor of such bank;  and (d)  compensating  balances  with and
deposits in banks to the extent required to maintain  payroll accounts with such
banks.

     "Closing Date" means June 4, 1999.

     "Collateral" has the meaning assigned to that term in subsection 2.7.

     "Collecting Banks" has the meaning assigned to that term in subsection 5.6.

     "Commitment"  or  "Commitments"  means the  commitment  or  commitments  of
Lenders  to make  Loans as set forth in  subsection  2.1(A)  and to  provide  or
participate in Lender Letters of Credit as set forth in subsection 2.1(F).

     "Compliance  Certificate"  means a  certificate  duly executed by the chief
executive   officer  or  chief  financial   officer  of  Systems  and  Borrowers
appropriately completed and in substantially the form of Exhibit B.

     "Corporate  Overhead"  means payments made in cash or accrued by Systems in
connection  with the supervision and management of the businesses and operations
of Borrowers  including,  without  limitation,  in respect of  compensation  for
executive  officers  and other  employees  of Systems  who  participate  in such
supervision and management, and financial,  accounting, legal, computer service,
insurance and other similar payments made in cash relating thereto,  in all such
cases being reasonable in amount.

     "Default"  means a condition,  act or event that,  after notice or lapse of
time or both, would constitute an Event of
Default.

     "Default Rate" has the meaning assigned to that term in subsection 2.2.


     "Dime" means The Dime Savings Bank of New York, FSB and its successors.

     "Domestic  Subsidiary" means any Subsidiary organized under the laws of any
State of the United States.

     "EBITDA"  means,  for any  period,  without  duplication,  the total of the
following for Systems,  Borrowers and their respective consolidated Subsidiaries
on a  consolidated  basis,  each  calculated  for such  period:  (1) net  income
determined in accordance  with GAAP; plus (without  duplication),  to the extent
included  in the  calculation  of net  income,  (2)  the sum of (a)  income  and
franchise taxes paid or accrued; (b) Interest Expenses,  net of interest income,
paid or accrued;  (c) interest paid in kind; (d)  amortization  and depreciation
and (e) other non-cash charges (excluding accruals for cash expenses made in the
ordinary course of business); less, to the extent included in the calculation of
net income, (3) the sum of (a) the income of any Person (other than wholly-owned
Subsidiaries  of  Systems)  in which  Systems  or a Borrower  or a  wholly-owned
Subsidiary  of Systems or a Borrower  has an  ownership  interest  except to the
extent such  income is  received  by Systems or a Borrower or such  wholly-owned
Subsidiary in a cash distribution  during such period;  (b) gains or losses from
sales or other dispositions of assets (other than Inventory in the normal course
of business); and (c) extraordinary or non-recurring gains, but not net of
extraordinary or non-recurring "cash" losses.

     "Eligible  Accounts"  has the meaning  assigned to that term in  subsection
2.1(B).

     "Employee  Benefit Plan" means any employee benefit plan within the meaning
of Section 3(3) of ERISA which (a) is maintained for employees of any Loan Party
or any ERISA Affiliate or (b) has at any time within the preceding six (6) years
been  maintained  for the  employees  of any Loan Party or any current or former
ERISA Affiliate.

     "Environmental   Claims"   means   claims,   liabilities,   investigations,
litigation,   administrative  proceedings,   judgments  or  orders  relating  to
Hazardous Materials or Environmental Laws.

     "Environmental  Laws" means any present or future  federal,  state or local
law,  rule,  regulation or order relating to pollution,  waste,  disposal or the
protection  of human  health  or  safety,  plant  life or animal  life,  natural
resources or the environment.

     "Equipment"  means all  "equipment"  (as  defined  in the UCC),  including,
without  limitation,  all furniture,  furnishings,  fixtures,  machinery,  motor
vehicles,  trucks, trailers,  vessels,  aircraft and rolling stock and all parts
thereof and all additions and accessions thereto and replacements therefor.

     "ERISA"  means the Employee  Retirement  Income  Security  Act of 1974,  as
amended  from  time to  time,  and any  successor  statute  and  all  rules  and
regulations promulgated thereunder.

     "ERISA Affiliate",  as applied to any Loan Party, means any Person who is a
member  of a group  which is under  common  control  with  any Loan  Party,  who
together with any Loan Party is treated as a single  employer within the meaning
of Section 414(b) and (c) of the IRC.

     "Event of Default" means each of the events set forth in subsection 8.1.

     "Exim" or "EximBank" means the Export-Import  Bank of the United States and
any successor thereto.

     "EximBank  Documents"  means  the  Borrower  Agreement  dated  June 4, 1999
between Exim,  Power, and  acknowledged by the Lender,  and the Master Guarantee
Agreement No.  NY-MGA-  96-020 dated June 4, 1999 between Exim and Lender , each
as amended, restated, supplemented or modified from time to time.

     "EximBank  Tangible  Net Worth"  means as to any Person,  as at the date of
determination   thereof,   the  equity  of  such  Person  and  its  consolidated
Subsidiaries  minus the amounts  determined in accordance  with  paragraphs  (a)
through  (e) of the  definition  of Tangible  Net Worth,  all as  determined  in
accordance with GAAP.

     "Federal Funds Effective Rate" means,  for any day, the weighted average of
the rates on overnight  Federal funds  transactions  with members of the Federal
Reserve  System  arranged  by  Federal  funds  brokers,   as  published  on  the
immediately  following  Business Day by the Federal Reserve Bank of New York or,
if  such  rate is not  published  for  any  Business  Day,  the  average  of the
quotations for the day of the requested Loan received by Dime from three Federal
funds brokers of recognized standing selected by Dime.

     "Fiscal Quarter" has the meaning assigned to such term in the definition of
Fiscal Year.

     "Fiscal  Year" means each  twelve  month  period  ending on the last day of
December  in each year (with  quarterly  accounting  periods  ending on or about
March 31,  June 30,  September  30 and  December  31 of each Fiscal Year (each a
"Fiscal Quarter")).

     "Fixed Charge Coverage" means, for any period,  the ratio of Operating Cash
Flow to Fixed Charges.

     "Fixed Charges" means, for any period,  and each calculated for such period
(without  duplication),  (a)  Interest  Expenses  paid or  accrued  by  Systems,
Borrowers and their respective consolidated  Subsidiaries;  plus (b) payments of
principal  with  respect to all  Indebtedness  of Systems,  Borrowers  and their
respective Subsidiaries; plus (c) any provision for (to the extent it is greater
than zero)  income or  franchise  taxes  included  in the  determination  of net
income, excluding any provision for deferred taxes; plus (d) payment of deferred
taxes  accrued in any prior period;  plus (e)  Restricted  Junior  Payments made
during such period.

     "Funded Debt" means  Indebtedness which matures more than one year from the
date of its creation or matures  within one year from such date but is renewable
or  extendible,  at the option of the debtor,  to a date more than one year from
such  date or  arises  under a  revolving  credit  or  similar  agreement  which
obligates  the lender or lenders to extend  credit  during a period of more than
one year from such date  including,  without  limitation,  all amounts of Funded
Debt  required  to be  paid  or  prepaid  within  one  year  from  the  date  of
determination.


     "Funding  Date"  means the date of each  funding of a Loan or issuance of a
Lender Letter of Credit.

     "GAAP" means  generally  accepted  accounting  principles  set forth in the
opinions and  pronouncements of the Accounting  Principles Board of the American
Institute of Certified Public  Accountants and statements and  pronouncements of
the  Financial   Accounting   Standards   Board  that  are   applicable  to  the
circumstances as of the date of determination.

     "GP Strategies" means GP Strategies Corporation, a Delaware corporation.

     "GP  Strategies  Guarantee"  means the  Guarantee  dated June 4, 1999 by GP
Strategies in favor of the Lender.

     "Guarantor" and  "Guarantors"  have the meanings  assigned to such terms in
the preamble to this Agreement.

     "Guarantor  Payment"  has the meaning  assigned to such term in  subsection
11.2(A).

     "Hazardous Material" means all or any of the following: (a) substances that
are defined or listed in, or otherwise classified pursuant to, any Environmental
Laws or regulations as "hazardous substances", "hazardous materials", "hazardous
wastes", "toxic substances" or any other formulation intended to define, list or
classify  substances by reason of deleterious  properties such as  ignitability,
corrosivity,  reactivity,  carcinogenicity,  or toxicity;  (b) oil, petroleum or
petroleum derived substances,  natural gas, natural gas liquids or synthetic gas
and  drilling  fluids,  produced  waters and other  wastes  associated  with the
exploration,  development or production of crude oil,  natural gas or geothermal
resources;  (c)  any  flammable  substances  or  explosives  or any  radioactive
materials;  and (d) asbestos in any form or electrical  equipment which contains
any oil or dielectric fluid containing polychlorinated biphenyls.

     "Inactive  Subsidiary"  means GSE Systems  International  Ltd.,  a Delaware
corporation,  GS Information Systems FSC, Ltd., a Barbados corporation,  and GSE
Services  Company LLC, a Delaware  limited  liability  company,  and GSE Erudite
Software, Inc., a Delaware corporation.

     "Indebtedness",  as applied to any Person, means without  duplication:  (a)
all indebtedness  for borrowed money; (b) all obligations  under leases which in
accordance with GAAP constitute Capital Leases; (c) all notes payable and drafts
accepted   representing   extensions  of  credit  whether  or  not  representing
obligations for borrowed  money;  (d) any obligation owed for all or any part of
the deferred purchase price of property or services if the purchase price is due
more than six months from the date the obligation is incurred or is evidenced by
a note or similar written instrument;  (e) all indebtedness  secured by any Lien
on any property or asset owned or held by that Person  regardless of whether the
indebtedness  secured  thereby  shall  have been  assumed  by that  Person or is
non-recourse  to the credit of that Person;  (f) all  obligations  in respect of
letters  of credit or  bankers'  acceptances;  and (g) any  advances`  under any
factoring arrangement.

     "Intangible  Assets" means all intangible assets  (determined in conformity
with GAAP)  including,  without  limitation,  goodwill,  Intellectual  Property,
licenses,  organizational  costs,  deferred  amounts,  covenants not to compete,
unearned income and restricted funds.

     "Intellectual  Property"  means all  present and future  designs,  patents,
patent  rights  and  applications  therefor,  trademarks  and  registrations  or
applications therefor, trade names, inventions,  copyrights and all applications
and registrations therefor, software or computer programs, license rights, trade
secrets, methods, processes, know-how, drawings,  specifications,  descriptions,
and  all  memoranda,  notes  and  records  with  respect  to  any  research  and
development,  whether now owned or hereafter  acquired,  all goodwill associated
with any of the  foregoing,  and  proceeds of all of the  foregoing,  including,
without limitation, proceeds of insurance policies thereon.

     "Intellectual   Property   Assignment"  means  the  intellectual   property
assignment  to be executed  and  delivered  by Systems,  each  Borrower and each
Guarantor,  in a form  reasonably  acceptable to Lender,  as such  agreement may
hereafter be amended, restated,  supplemented or otherwise modified from time to
time.

     "Intercompany  Indebtedness"  means, with respect to Systems, any Borrower,
any  Guarantor  or  any  of  their  respective  Subsidiaries,   all  assets  and
liabilities  howsoever arising,  which are due to such Person from, or which are
due from such Person to, or which may otherwise  arise from any  transactions by
such Person with Systems, a Borrower, a Guarantor or a Subsidiary.

     "Interest  Expenses"  means,  without  duplication,  for  any  period,  for
Systems,  Borrowers and their respective  Subsidiaries  each calculated for such
period,  the following:  all interest  expenses deducted in the determination of
net income.

     "Interest  Period"  has the  meaning  assigned  to such term in  subsection
2.2(B).

     "Interest Rate" has the meaning assigned to such term in subsection 2.2(A).

     "Inventory"  means all  "inventory"  (as  defined  in the UCC),  including,
without  limitation,  finished goods,  raw materials,  work in process and other
materials and supplies  used or consumed in a Person's  business or furnished or
to be  furnished  under  contracts  of service,  and goods  which are  returned,
repossessed or reclaimed.

     "IRC" means the  Internal  Revenue  Code of 1986,  as amended  from time to
time,  and any  successor  statute  and all  rules and  regulations  promulgated
thereunder.

     "Lender"  has the  meaning  assigned  to such term in the  preamble to this
Agreement.

     "Lender  Letter  of  Credit"  has the  meaning  assigned  to  such  term in
subsection 2.1(F).

     "Lender's Account" means the account designated by Lender from time to time
for payments to Lender under this Agreement.

     "Letter of Credit  Liability" means all reimbursement and other liabilities
of Borrowers with respect to each Lender Letter of Credit, whether contingent or
otherwise,  including:  (a) the amount available to be drawn or which may become
available to be drawn; (b) all amounts which have been paid or made available by
any Lender  issuing a Lender  Letter of Credit or any bank issuing a Bank Letter
of Credit to the extent not reimbursed;  and (c) all unpaid  interest,  fees and
expenses related thereto.

     "Liabilities"  shall have the meaning  given that term in  accordance  with
GAAP and shall include Indebtedness.

     "LIBOR" means, for each Interest Period, a rate of interest equal to:

     (a) the rate of interest  determined by Lender at which deposits in Dollars
for the relevant  Interest Period are offered based on information  presented on
Telerate page 3750 (or such other page as may replace such page on that service)
as of 11:00 A.M.  (London  Time) on the day which is two (2) Business Days prior
to the first day of such Interest Period,  provided, if for any reason such rate
is not  available,  "LIBOR"  shall mean,  for each  Interest  Period,  a rate of
interest equal to the rate of interest determined by Lender at which deposits in
Dollars  for the  relevant  Interest  Period are  offered  based on  information
presented on the Reuters Screen LIBO Page as of 11:00 A.M.  (London time) on the
day which is two (2)  Business  Days  prior to the  first  day of such  Interest
Period;  provided  further that if at least two such offered rates appear on the
Reuters Screen LIBO Page in respect of such Interest Period, the arithmetic mean
of all such  rates (as  determined  by Lender)  will be the rate used;  provided
further that if Reuters ceases to provide LIBOR  quotations,  such rate shall be
the average rate of interest  determined by Lender at which  deposits in Dollars
are  offered  for the  relevant  Interest  Period by The Chase  Manhattan  Bank,
Citibank N.A. or its successors to prime banks in the London interbank market as
of 11:00 A.M. (London time) on the applicable  interest rate determination date;
in each case divided by

     (b) a number equal to 1.0 minus the aggregate (but without  duplication) of
the rates (expressed as a decimal fraction) of reserve requirements in effect on
the day which is two (2) Business  Days prior to the  beginning of such Interest
Period  (including,  without  limitation,  basic,  supplemental,   marginal  and
emergency  reserves  under  any  regulations  of the Board of  Governors  of the
Federal Reserve System or other governmental  authority having jurisdiction with
respect  thereto,  as now and  from  time to time in  effect)  for  Eurocurrency
funding (currently referred to as "Eurocurrency  Liabilities" in Regulation D of
such Board) which are required to be  maintained by a member bank of the Federal
Reserve System,

     (such rate to be adjusted to the nearest one sixteenth of one percent (1/16
of 1%) or, if there is not a nearest one  sixteenth of one percent (1/16 of 1%),
to the next higher one sixteenth of one percent (1/16 of 1%).

     "LIBOR Loans" means at any time that portion of the Loans bearing  interest
at rates determined by reference to LIBOR.


     "Lien"  means any lien,  mortgage,  pledge,  security  interest,  charge or
encumbrance  of any kind,  whether  voluntary  or  involuntary,  (including  any
conditional  sale or other title  retention  agreement,  any lease in the nature
thereof,  and any agreement to give any security interest) and any filing of UCC
financing statements or similar instruments.

     "Loan" or "Loans"  means an advance or advances  under the  Revolving  Loan
Commitment.

     "Loan Documents" means this Agreement,  the EximBank  Documents,  the Note,
the Intellectual  Property  Assignment,  the GP Strategies Guarantee and ManTech
Guarantee,  the Pledge  Agreements,  and all other  instruments,  documents  and
agreements executed by or on behalf of any Loan Party and delivered concurrently
herewith or at any time hereafter to or for Lender in connection with the Loans,
any  Lender  Letter  of  Credit  and  other  transactions  contemplated  by this
Agreement, all as amended, restated, supplemented or modified from time to time.

     "Loan Party" means each of the Borrowers,  Systems,  the Guarantors,  their
respective Subsidiaries,  and any other Person (other than Lender, GP Strategies
and  ManTech)  which is or becomes a party to any Loan  Document  (collectively,
referred to as the "Loan Parties").

     "Loan Year" means each period of twelve (12) consecutive  months commencing
on the Closing Date and on each anniversary thereof.

     "ManTech"   means   Mantech   International   Corporation,   a  New  Jersey
corporation.

     "ManTech  Guarantee"  means the Guarantee  dated June 4, 1999 by ManTech in
favor of the Lender.

     "Material  Adverse Effect" means (1) a material adverse effect upon (a) the
business, operations,  prospects,  properties, assets or condition (financial or
otherwise) of any Loan Party on an individual basis or taken as a whole, (b) the
ability of any Loan Party to perform its obligations  under any Loan Document to
which it is a party or of Lender to enforce or collect any of the Obligations or
(c) the  value  of any  Collateral  or the  validity,  perfection,  priority  or
enforceability  of  Lender's  Lien in any  Collateral,  or (2) any  loss,  cost,
liability or expense  suffered or incurred by any Loan Party involving an amount
in excess of $250,000.

     "Maximum  Revolving  Loan Amount" has the meaning  assigned to that term in
subsection 2.1(A)(1).

     "MGA" means the Master Guarantee Agreement referred to in the definition of
EximBank Documents herein.

     "Notes" means the Revolving Notes.

     "Notice of Borrowing"  has the meaning  assigned to such term in subsection
2.1(C).


     "Obligations" means all obligations,  liabilities and indebtedness of every
nature of each  Loan  Party  from  time to time  owed to  Lender  under the Loan
Documents  including the principal amount of all debts,  claims and indebtedness
(whether  incurred  before or after the  Termination  Date),  accrued and unpaid
interest and all fees, costs and expenses, whether primary,  secondary,  direct,
contingent,  fixed  or  otherwise,  heretofore,  now  and/or  from  time to time
hereafter owing, due or payable  including,  without  limitation,  all interest,
fees,  costs and expenses  accrued or incurred  after the filing of any petition
under any  bankruptcy  or  insolvency  law and the  obligation  to deposit  cash
collateral or other amounts under this Agreement.

     "Operating  Cash Flow" means,  for any period,  (a) EBITDA less (b) Capital
Expenditures  and less (c) the  aggregate  amount of  contingent  and  "earnout"
payments for which  Systems,  either  Borrower or any of their  Subsidiaries  is
obligated in respect of any Permitted Acquisition,  that are paid in cash during
such period.

     "PermittedAcquisition"  has the meaning assigned to such term in subsection
7.6(B).

     "Permitted  Encumbrances"  means the  following  types of Liens:  (a) Liens
(other  than  Liens  relating  to  Environmental  Claims  or ERISA)  for  taxes,
assessments or other governmental  charges:  (x) not yet due and payable; or (y)
due  and  payable  that  are  being  contested  in  good  faith  by  appropriate
proceedings,  provided  that,  in the case of Liens  under  this  clause  (y), a
reserve against the Borrowing Base shall have been  established in the amount of
the claims for any such taxes,  assessments or other governmental  charges;  (b)
statutory Liens of landlords, carriers, warehousemen, mechanics, materialmen and
other similar liens imposed by law, which are incurred in the ordinary course of
business for sums not more than thirty (30) days  delinquent  or the validity of
which is being  contested  in good  faith by  appropriate  proceedings  promptly
instituted and diligently conducted, and (x) the outcome of such proceedings, if
adversely  determined,  could not have a Material  Adverse  Effect,  and (y) the
amount of such Liens shall be  deducted  from the  Borrowing  Base if such Liens
attach to any assets  included in the Borrowing  Base; (c) Liens (other than any
Lien  imposed by ERISA)  incurred or  deposits  made in the  ordinary  course of
business in connection with workers'  compensation,  unemployment  insurance and
other types of social security, statutory obligations,  surety and appeal bonds,
bids, leases, government contracts, trade contracts, performance bonds and other
similar  obligations  (exclusive  of  obligations  for the  payment of  borrowed
money); (d) easements, rights-of-way, restrictions, and other similar charges or
encumbrances  not interfering in any material  respect with the ordinary conduct
of the  business of Systems,  either  Borrower,  any  Guarantor  or any of their
respective Subsidiaries; (e) Liens for purchase money obligations, provided that
(i) the Indebtedness  secured by any such Lien is permitted under subsection 7.1
and (ii) such Lien encumbers only the asset so purchased;  (f) Liens in favor of
Lender; (g) Liens set forth on Schedule 1.1(A); and (h) attachment, judgment and
other similar liens not  attaching to the  Collateral  which arise in connection
with court proceedings,  as to which the execution or other enforcement  thereof
is effectively stayed, or which are fully covered by applicable  insurance as to
which the insurance  company has acknowledged  coverage (which shall not include
any  bonding  or other  arrangement  in  connection  with  which  either  of the
Borrowers or any of the other Loan Parties may be liable to any extent)

     "Person"  means  and  includes  natural  persons,   corporations,   limited
partnerships,  general  partnerships,  limited liability companies,  joint stock
companies,  joint  ventures,  associations,   companies,  trusts,  banks,  trust
companies,  land trusts, business trusts or other organizations,  whether or not
legal entities, and governments and agencies and political subdivisions thereof.

     "Pledge Agreement" means each stock pledge agreement executed and delivered
by Systems,  each Borrower and each Subsidiary that has a Subsidiary in favor of
Lender, in form and substance satisfactory to Lender.

     "Pro Forma" means the  unaudited  consolidated  and  consolidating  balance
sheet of Systems and the Borrowers as of the Closing Date after giving effect to
the transactions contemplated by this Agreement. The Pro Forma is annexed hereto
as Schedule 1.1(B).

     "Projections"   means   Systems'  and  the   Borrowers'   forecasted:   (a)
consolidated   and   consolidating   balance  sheets;   (b)   consolidated   and
consolidating  profit and loss statements;  (c)  consolidated and  consolidating
cash flow statements;  (d) capitalization  statements;  and (e) consolidated and
consolidating  schedule of Indebtedness,  all prepared on a division by division
and Subsidiary by Subsidiary  basis and otherwise  consistent  with Systems' and
such  Borrower's  financial  statements,  together with  appropriate  supporting
details and a statement of underlying assumptions.

     "Reconciliation Report" means a report duly executed by the chief executive
officer or chief financial  officer or another  officer  responsible for finance
matters   of  a  Borrower   Representative   appropriately   completed   and  in
substantially the form of Exhibit C.

     "Restricted Junior Payment" means: (a) any dividend or other  distribution,
direct  or  indirect,  on  account  of any  shares  of any  class  of  stock  or
partnership,  membership or other equity interest of Systems,  a Borrower or any
of their respective Subsidiaries now or hereafter outstanding, except a dividend
payable  solely  with  shares of the class of stock on which  such  dividend  is
declared;  (b) any payment or prepayment of principal  of,  premium,  if any, or
interest on, or any redemption,  conversion,  exchange, retirement,  defeasance,
sinking fund or similar payment, purchase or other acquisition for value, direct
or  indirect,  of any  Indebtedness  subordinated  in  right of  payment  to the
Obligations  or any shares of any class of stock or  partnership,  membership or
other  equity  interest  of  Systems,  a  Borrower  or any of  their  respective
Subsidiaries  now or  hereafter  outstanding,  or the issuance of a notice of an
intention  to do any of the  foregoing;  (c) any payment  made to retire,  or to
obtain the surrender of, any  outstanding  warrants,  options or other rights to
acquire shares of any class of stock or partnership,  membership or other equity
interest of Systems,  a Borrower or any of their respective  Subsidiaries now or
hereafter  outstanding;  and (d) any  payment by  Systems,  a Borrower or any of
their respective Subsidiaries of any management fees, consulting fees or similar
fees to any Affiliate, whether pursuant to a management agreement or otherwise.

     "Revolving  Advance"  means each  advance  made by  Lender(s)  pursuant  to
subsection 2.1(A).

     "Revolving  Loan" means the outstanding  balance of all Revolving  Advances
and any amounts added to the principal balance of the Revolving Loan pursuant to
this Agreement.

     "Revolving  Loan  Commitment"  means  the  commitment  of  Lender  to  make
Revolving Advances pursuant to subsection 2.1(A), and to purchase participations
in Lender  Letters of Credit  pursuant  to  subsection  2.1(F) in the  aggregate
amount set forth on the  signature  page of this  Agreement (or any amendment to
this Agreement) opposite Lender's signature.

     "Revolving  Notes" means the  promissory  notes of the  Borrowers in a form
reasonably acceptable to the Lender, issued pursuant to subsection 2.1(D).

     "Risk  Participation  Agreement"  has the meaning  assigned to that term in
subsection 2.1(F).

     "Rolling  EBITDA"  means  EBITDA  for a period of four  consecutive  Fiscal
Quarters  ending on the last day of each Fiscal Quarter prior to each Adjustment
Date.

     "Subsidiary"   means,   with  respect  to  any  Person,   any  corporation,
association or other  business  entity of which more than fifty percent (50%) of
the  total  voting  power  of  shares  of  stock  (or  equivalent  ownership  or
controlling  interest)  entitled  (without  regard  to  the  occurrence  of  any
contingency) to vote in the election of directors,  managers or trustees thereof
is at the time owned or controlled,  directly or  indirectly,  by that Person or
one or more of the other subsidiaries of that Person or a combination thereof.

     "Tangible  Net  Worth"  means,   as  to  any  Person  as  of  the  date  of
determination  thereof,  the excess of total assets over total  liabilities,  as
determined in accordance with GAAP, and less the sum of (without duplication):

          (a)  the  total  book  value  of all  assets  of such  Person  and its
Subsidiaries properly classified as intangible assets under GAAP, including such
items as good will, the purchase price of acquired  assets in excess of the fair
market value  thereof,  trademarks,  trade names,  service  marks,  brand names,
copyrights, patents and licenses, and rights with respect to the foregoing; plus

          (b) all  amounts  representing  any  write-up in the book value of any
assets of such Person or its Subsidiaries  resulting from a revaluation  thereof
subsequent to December 31,1998; plus

          (c) to the extent otherwise  includable in the computation of Tangible
Net Worth, any subscriptions receivable; plus

          (d) any deferred charges and treasury stock; plus

          (e) software development costs.

     "Target" means, with respect to any Permitted Acquisition, any Person whose
capital stock,  assets or business are being acquired pursuant to such Permitted
Acquisition.

     "Termination Date" means May 31, 2002.


     "UCC" means the Uniform  Commercial Code as in effect on the date hereof in
the State of New York, as amended from time to time, and any successor statute.

     "Unused  Availability"  means, as of any date, the amount (if any) by which
the Maximum Revolving Loan Amount exceeds the Revolving Loan.

     1.2 Accounting Terms. For purposes of this Agreement,  all accounting terms
not otherwise  defined herein shall have the meanings  assigned to such terms in
conformity with GAAP.  Financial  statements and other information  furnished to
Lender  pursuant to subsection 5.1 shall be prepared in accordance with GAAP (as
in effect at the time of such  preparation) on a consistent  basis. In the event
any "Accounting  Changes" (as defined below) shall occur and such changes affect
financial  covenants,  standards  or  terms  in this  Agreement,  then  Systems,
Borrowers  and Lender  agree to enter into  negotiations  in order to amend such
provisions of this Agreement so as to equitably reflect such Accounting  Changes
with the desired result that the criteria for evaluating the financial condition
of Systems,  Borrowers and their respective Subsidiaries shall be the same after
such  Accounting  Changes as if such  Accounting  Changes had not been made, and
until such time as such an amendment  shall have been  executed and delivered by
Systems,  Borrowers  and the other Loan  Parties and Lender,  (A) all  financial
covenants,  standards and terms in this  Agreement  shall be  calculated  and/or
construed as if such  Accounting  Changes had not been made, and (B) Systems and
Borrowers  shall  prepare  footnotes  to  each  Compliance  Certificate  and the
financial   statements   required  to  be  delivered  hereunder  that  show  the
differences  between the  financial  statements  delivered  (which  reflect such
Accounting Changes) and the basis for calculating  financial covenant compliance
(without reflecting such Accounting  Changes).  "Accounting  Changes" means: (a)
changes in accounting  principles  required by GAAP and  implemented by Systems,
Borrowers  and  their  respective   Subsidiaries;   (b)  changes  in  accounting
principles  recommended by Systems' or Borrowers'  certified public accountants;
and (c) changes in carrying  value of any of Systems',  any Borrowers' or any of
their respective Subsidiaries' assets,  liabilities or equity accounts resulting
from any  adjustments in excess of $50,000 in the aggregate  that, in each case,
were  applicable  to, but not included in, the Pro Forma.  All such  adjustments
resulting from expenditures made subsequent to the Closing Date (including,  but
not limited to,  capitalization  of costs and expenses or payment of pre-Closing
Date  liabilities)  shall be treated as expenses in the period the  expenditures
are made and deducted as part of the calculation of EBITDA in such period.


     1.3 Other Definitional Provisions. References to "Sections", "subsections",
"Exhibits"  and  "Schedules"  shall be to  Sections,  subsections,  Exhibits and
Schedules,   respectively,  of  this  Agreement  unless  otherwise  specifically
provided.  Any of the terms  defined in subsection  1.1 may,  unless the context
otherwise  requires,  be used in the  singular  or the plural  depending  on the
reference.  In this  Agreement,  words  importing  any gender  include the other
genders;  the words "including,"  "includes" and "include" shall be deemed to be
followed by the words "without  limitation";  references to agreements and other
contractual  instruments  shall be  deemed  to  include  subsequent  amendments,
assignments,  and  other  modifications  thereto,  but only to the  extent  such
amendments,  assignments and other modifications are not prohibited by the terms
of this  Agreement or any other Loan  Document;  references  to Persons  include
their  respective   permitted   successors  and  assigns  or,  in  the  case  of
governmental  Persons,  Persons  succeeding  to the  relevant  functions of such
Persons;  and all references to statutes and related  regulations  shall include
any amendments of same and any successor statutes and regulations.

<PAGE>

                        SECTION 2. LOANS AND COLLATERAL

     2.1  Loans.

          (A)  Revolving  Loan.  Subject  to the  terms and  conditions  of this
Agreement and in reliance upon the  representations  and  warranties of Systems,
Borrowers  and the other  Loan  Parties  set forth  herein and in the other Loan
Documents,  each Lender agrees to lend to Borrowers  from time to time Revolving
Advances.  The Revolving Loan Commitment shall not exceed at any time $9,000,000
to  both  Borrowers  less  any   reductions   pursuant  to  subsection   2.4(B).
Notwithstanding the foregoing, the portion of the Revolving Loan attributable to
either Borrower at any time plus the Letter of Credit Liability of such Borrower
at such time, but only in respect of any Letter of Credit issued for the account
of such Borrower  (together with the aggregate amount theretofore paid by Lender
in respect of any Letter of Credit  issued for the account of such  Borrower and
not reimbursed by such Borrower)  shall not exceed the lesser of : (1)(x) in the
case of Power, $6,000,000,  and (y) in the case of Process,  $3,000,000, and (2)
that  portion of the  Borrowing  Base  attributable  to such  Borrower.  Amounts
borrowed under this  subsection  2.1(A) may be repaid and reborrowed at any time
prior to the earlier of (i) the  termination  of the Revolving  Loan  Commitment
pursuant to subsection  8.3 or (ii) the  Termination  Date.  Except as otherwise
provided  herein,  Lender shall not have any obligation to make an advance under
this subsection  2.1(A) to a Borrower to the extent such advance would cause the
Revolving Loan (after giving effect to any immediate application of the proceeds
thereof) to exceed the Maximum Revolving Loan Amount.

               (1)  "Maximum  Revolving  Loan Amount"  means,  as of any date of
determination,  the lesser of (a) the Revolving Loan Commitment minus the Letter
of Credit  Liability  and (b) the  Borrowing  Base  minus  the  Letter of Credit
Liability.

               (2) "Borrowing Base" means, as of any date of  determination,  an
amount  equal to the sum of (x) 90% of  Eligible  Accounts  of Power  and 85% of
Eligible Accounts of Process less such reserves as Lender in its sole discretion
may elect to establish, plus (y) 60% of Power's Eligible Unbilled Accounts, less
such reserves as Lender in its sole discretion may elect to establish,  plus (z)
20% of Eligible Inventory of Process but not exceeding $600,000 in the aggregate
under this clause (z),  provided that Accounts of Power under which the customer
is  located in the  United  States  shall be in an  aggregate  amount  less than
Power's backlog of orders with customers  located  outside the United States.  A
portion of the Borrowing  Base shall be attributed to each Borrower on the basis
of the  appropriate  percentage  set forth above of the assets of such  Borrower
included in the Borrowing Base.


          (B) Eligible Accounts and Inventory.

          "Eligible  Accounts"  means,  as at any  date  of  determination,  the
aggregate  of all  Accounts  that  Lender,  in its  sole  judgment,  deems to be
eligible  for  borrowing  purposes  (provided  that Lender  shall give  Borrower
Representative reasonably prompt notice following any determination by Lender to
exclude any Accounts from Eligible  Accounts  based on criteria other than those
set  forth  below,  which  notice  shall  include,  subject  to  confidentiality
constraints as determined by Lender in its sole  discretion,  the basis for such
determination  by Lender).  Without  limiting the  generality of the  foregoing,
unless  otherwise  agreed by Lender,  the  following  Accounts  are not Eligible
Accounts:

               (1) Accounts  which remain  unpaid for more than ninety (90) days
after the date of issuance of the original invoice;

               (2) Accounts  which are otherwise  eligible with respect to which
the account  debtor is owed a credit or other  obligation by any  Borrower,  but
only to the extent of such credit or other obligation;

               (3)  Accounts  due  from a  customer  whose  principal  place  of
business is located  outside the United States of America or Canada unless:  (a)
the customer has been approved by Exim and the Account is eligible for inclusion
in the Borrowing Base under the EximBank Documents or (b) such Account is backed
by a letter of credit, in form and substance  acceptable to Lender and issued or
confirmed  by a bank that is  organized  under the laws of the United  States of
America or a State  thereof,  that is acceptable  to Lender;  provided that such
letter of credit has been delivered to Lender as additional collateral;

               (4)  Accounts  due from a  customer  which  Lender  has  notified
Borrower Representative does not have a satisfactory credit standing;

               (5)  Accounts in excess of an  aggregate  face amount of $100,000
with respect to which the customer is the United States of America, any state or
any municipality,  or any department,  agency or instrumentality  thereof unless
the applicable  Borrower has, with respect to such  Accounts,  complied with the
Federal  Assignment  of Claims Act (31 U.S.C.  Section  3727) or any  applicable
statute or municipal ordinance of similar purpose and effect, provided that such
Accounts  shall not be  excluded  from  Eligible  Accounts if the  Borrower  has
complied with its obligations under Section 2.15;

               (6)  Accounts  with respect to which the customer is an Affiliate
of any Borrower or a director,  officer,  agent,  stockholder or employee of any
Borrower or any of its Affiliates;


               (7) Accounts due from a customer if more than fifty percent (50%)
of the aggregate amount of Accounts of such customer owing to any Borrower or in
the  aggregate to all Borrowers  have at the time remained  unpaid for more than
ninety (90) days after the date of issuance of the original invoice;

               (8)  Accounts  with  respect  to which  there  is any  unresolved
dispute with the  respective  customer (but if the amount in dispute  relates to
25% or less of the amount of such Accounts,  only to the extent of the amount of
such dispute);

               (9) Accounts  evidenced by an "instrument" or "chattel paper" (as
defined in the UCC) not in the possession of Lender;

               (10) Accounts with respect to which Lender does not have a valid,
first priority and fully perfected security interest;

               (11) Accounts subject to any Lien except those in favor of Lender
and except  Permitted  Encumbrances  referred  to in clauses  (a) and (h) of the
definition of such term herein as to which a reserve  against or deduction  from
the Borrowing Base shall have been established;

               (12) Accounts with respect to which either  Borrower has received
notice that the customer is the subject of any  bankruptcy  or other  insolvency
proceeding;

               (13)  Accounts due from a customer  (other than the United States
Department  of Energy and its  subdivisions)  to the extent  that such  Accounts
exceed  in the  aggregate  an  amount  equal  to  fifteen  percent  (15%) of the
aggregate of all Accounts at said date;

               (14) Accounts with respect to which the customer's  obligation to
pay is conditional  or subject to a repurchase  obligation or right to return or
with respect to which the goods or services giving rise to such Account have not
been  delivered  (or  performed,  as  applicable)  and  accepted by such account
debtor, including progress billings, bill and hold sales, guarantied sales, sale
or return transactions, sales on approval or consignment sales;

               (15) Any Account with respect to which the customer is located in
(a) New Jersey or Minnesota,  or any other state denying creditors access to its
courts in the absence of a Notice of Business Activities Report or other similar
filing,  unless the  Borrower  holding  such  Account has either  qualified as a
foreign corporation authorized to transact business in such state or has filed a
Notice of Business Activities Report or similar filing with the applicable state
agency for the then current  year, or (b) any country where Exim is off cover in
accordance with EximBank's  Country  Limitation  Schedule in effect from time to
time;

               (16) Accounts with respect to which the customer is a creditor of
any Borrower;  provided, however, that any such Account shall only be ineligible
as to that  portion  of such  Account  which is less than or equal to the amount
owed by Borrowers to such Person; and

               (17) Accounts which do not conform to the requirements  contained
in the EximBank Documents or are excluded from the Borrowing Base by Section 2.3
of the Borrower Agreement.

          "Eligible  Inventory"  means,  as at any  date of  determination,  all
Inventory  of a Borrower  (excluding  all spare  parts)  consisting  of finished
products, work in progress, or raw materials, valued at the lower of its cost or
its market value that  Lender,  in its sole  judgment,  deems to be eligible for
borrowing  purposes  (provided  that Lender shall give  Borrower  Representative
reasonably  prompt notice  following any  determination by Lender to exclude any
Inventory from Eligible  Inventory  based on criteria other than those set forth
below,  which notice shall include the basis for such  determination by Lender).
Without  limiting the generality of the foregoing,  unless  otherwise  agreed by
Lender, Eligible Inventory shall satisfy the following eligibility criteria:

          (1) such  Inventory was acquired by a Borrower in the ordinary  course
of business from a  non-Affiliate  and such  Inventory is  merchantable  and not
obsolete, damaged or otherwise unfit for sale or further processing;

          (2) a Borrower has legal and valid title to such Inventory;

          (3) a Borrower has the full and unqualified  right to assign and grant
a Lien on such Inventory to the Lender as security for the Obligations;

          (4) such  Inventory  is subject to a valid and  enforceable  perfected
Lien in  favor  of the  Lender,  which  Lien is  prior  to the  rights  of,  and
enforceable as such against, all other Persons, and is subject to no other Liens
except  Permitted  Encumbrances  referred to in clauses  (a),  (b) or (h) of the
definition of such term herein as to which a reserve  against or deduction  from
the Borrowing Base shall have been established;

          (5) none of such  Inventory  is  evidenced by bills of lading or other
documents of title, whether negotiable or non-negotiable, unless such negotiable
document  of title has been  issued and duly  negotiated  to a  Borrower  or the
Lender or such  non-negotiable  document of title has been issued in the name of
and  delivered  to a Borrower  or the Lender  and,  in each case,  the issuer is
acceptable to the Lender; and

          (6) such  Inventory is located in a facility  acceptable to the Lender
which is owned by a  Borrower,  leased  by a  Borrower  or  otherwise  under the
control of a Borrower.

          "Eligible  Unbilled  Accounts" means, as at any date of determination,
Power's  rights and claims for services  actually  performed  or goods  actually
delivered to a customer as to which such Borrower has not yet issued an invoice.
In order to qualify as an Eligible Unbilled Account, such rights and claims must
be deemed eligible by the Lender, in its sole judgment,  for borrowing  purposes
(provided  that Lender  shall give  Borrower  Representative  reasonably  prompt
notice  following any  determination  by Lender to exclude such rights or claims
from Eligible  Unbilled  Accounts  based on criteria  other than those set forth
below,  which notice shall include the basis for such  determination by Lender).
The amount of Eligible Unbilled Accounts shall be equal to the amount that would
be included as Eligible Accounts upon issuance of an invoice  therefor,  but not
to exceed  recoverable  costs under the relevant contract and not to include any
accrued  profit.  Without  limiting  the  generality  of the  foregoing,  unless
otherwise  agreed by  Lender,  Eligible  Unbilled  Accounts  shall  satisfy  the
following eligibility criteria:

          (1) Upon  issuance of an invoice  therefor,  an Eligible  Account will
arise in favor of a Borrower;

          (2) Even if no other services were performed or goods delivered to the
customer,  a  Borrower  has the right to issue an invoice  to its  customer  for
services  performed or goods  delivered  prior to the date as of which  Eligible
Unbilled Accounts is determined; and

          (3) No  Eligible  Unbilled  Account  shall  be  included  in  Eligible
Accounts.

          (C) Borrowing Mechanics.

          (1) LIBOR  Loans made on any  Funding  Date  shall be in an  aggregate
minimum amount of $500,000 and integral  multiples of $100,000 in excess of such
amount.

          (2) On any day  when  any  Borrower  desires  an  advance  under  this
subsection 2.1, Borrower  Representative  shall give Lender telephonic notice of
the proposed borrowing by 11:00 a.m. New York City time on the Funding Date of a
Base Rate Loan and three (3)  Business  Days in advance of the Funding Date of a
LIBOR Loan,  which notice  shall also  specify the proposed  Funding Date (which
shall be a Business Day), whether such Loans shall consist of Base Rate Loans or
LIBOR Loans, and for LIBOR Loans the Interest Period applicable thereto, and the
name(s) of Borrower(s) on whose behalf such Loans are being requested.  Any such
telephonic  notice  shall be confirmed in writing on the same day by delivery by
one or more of the Borrower Representatives of a Notice of Borrowing in the form
of Exhibit D annexed  hereto (a "Notice of  Borrowing").  Lender shall not incur
any  liability  to any  Borrower for acting upon any  telephonic  notice  Lender
believes in good faith to have been given by a duly authorized  officer or other
Person authorized to convey such notice on behalf of a Borrower or for otherwise
acting in good faith under this subsection 2.1(C). Lender shall not be obligated
to make  any  advance  pursuant  to any  telephonic  notice  unless  it has also
received the most recent  Borrowing  Base  Certificate  and all other  documents
required under  subsection 5.1 by 11:00 a.m. New York City time.  Each Revolving
Advance shall be deposited by wire transfer in immediately  available funds in a
Borrower's operating account with Dime as Borrower  Representative may from time
to time designate to Lender in writing.  The becoming due of any amount required
to be paid under this  Agreement  or any of the other  Loan  Documents,  whether
principal, accrued interest or fees, shall be deemed irrevocably to be a request
by Borrowers or Borrower  Representative  for a Base Rate  Revolving Loan on the
due date of, and in the amount required to pay, such principal, accrued interest
and fees,  and the  proceeds  of each such  Revolving  Advance if made by Lender
shall  be  disbursed  by  Lender  by  way of  direct  payment  of  the  relevant
obligation.

          (D) Note.  Each of the Borrowers  shall jointly and severally  execute
and  deliver  to  Lender  with  appropriate  insertions  Revolving  Notes in the
principal  amount  of  $6,000,000  and  $3,000,000,  respectively,  to  evidence
Lender's Revolving Loan Commitment to the Borrowers,  respectively. In the event
of an assignment  under subsection 9.1,  Borrowers shall,  upon surrender of the
assigning  Lender's  Note,  issue a new Note to reflect the interest held by the
assigning Lender and its assignee.

          (E) Evidence of Revolving Loan  Obligations.  Each  Revolving  Advance
shall be evidenced by this Agreement,  the Revolving  Notes,  and notations made
from  time to time by  Lender  in its  books  and  records,  including  computer
records.  Lender  shall  record  in its books and  records,  including  computer
records,  the principal  amount of the  Revolving  Loan owing to it from time to
time. Lender's books and records shall constitute  presumptive evidence,  absent
manifest error, of the accuracy of the information contained therein. Failure by
Lender to make any such notation or record shall not affect the  obligations  of
Borrowers to Lender with respect to the Revolving Loans.

          (F)  Letters of Credit.  Subject to the terms and  conditions  of this
Agreement and in reliance upon the  representations  and  warranties of Systems,
Borrowers and the other Loan Parties,  the Revolving  Loan  Commitments  may, in
addition  to  Revolving  Advances,  be  utilized,  upon the  request of Borrower
Representative, for (i) the issuance of letters of credit by Lender, or (ii) the
issuance by Lender of risk participations (a "Risk Participation  Agreement") to
banks to induce  such banks to issue  letters  of credit for the  account of any
Borrower or to Dime to induce Dime to enter into such a risk  participation with
such an issuing  bank (each of (i) and (ii) above a "Lender  Letter of Credit").
In no event  shall any Lender  Letter of Credit be issued to the extent that the
issuance  of such Lender  Letter of Credit  would cause the sum of the Letter of
Credit Liability after giving effect to such issuance plus the Revolving Loan to
exceed  the  lesser  of (x)  the  Borrowing  Base  and (y)  the  Revolving  Loan
Commitment.  Notwithstanding the foregoing,  in no event shall any Lender Letter
of Credit be issued on behalf of any Borrower to the extent that the issuance of
such  Lender  Letter  of  Credit  would  cause  the  sum of the  Revolving  Loan
outstanding to such Borrower plus the Letter of Credit Liability attributable to
such Borrower to exceed that portion of the Borrowing Base  attributable to such
Borrower.

               (1)  Maximum  Amount.  The  aggregate  amount of Letter of Credit
Liability with respect to all Lender  Letters of Credit  outstanding at any time
shall not exceed $9,000,000.


               (2)   Reimbursement.   Borrowers   shall   be   irrevocably   and
unconditionally  obligated  forthwith without  presentment,  demand,  protest or
other formalities of any kind, to reimburse Lender or the issuer for any amounts
paid with respect to a Lender  Letter of Credit  including  all fees,  costs and
expenses paid to any bank that issues a Bank Letter of Credit.  Borrowers hereby
authorize  and direct  Lender,  at  Lender's  option,  to debit each  Borrower's
account (by  increasing  the  principal  balance of the  Revolving  Loan) in the
amount of any payment  made with respect to any Lender  Letter of Credit  issued
for the account of such  Borrower.  All amounts  paid with respect to any Lender
Letter of Credit that are not immediately  repaid by Borrowers with the proceeds
of a Revolving  Advance or  otherwise  shall bear  interest at the Default  Rate
applicable to Base Rate Revolving Loans.

               (3)  Conditions  of Issuance.  In addition to all other terms and
conditions  set forth in this  Agreement,  the issuance of any Lender  Letter of
Credit shall be subject to the  satisfaction  of all  conditions  applicable  to
Revolving  Advances,  and the  conditions  that the  letter of credit be in such
form, be for such amount,  contain such terms and support such  transactions  as
are permitted  under Section 5.15 and would not constitute a Default or Event of
Default.  The expiration date of each Lender Letter of Credit shall be on a date
which is at least thirty (30) days prior to the Termination Date.

               (4) Request for Letters of Credit.  Borrower Representative shall
give Lender at least three (3) Business Days prior notice  specifying the date a
Lender  Letter  of Credit  is to be  issued,  identifying  the  beneficiary  and
describing the nature of the transactions  proposed to be supported thereby. The
notice shall be accompanied by the form of the letter of credit being  requested
and shall contain  certifications  equivalent to those in the last  paragraph of
the Notice of Borrowing.

          (G) Other Letter of Credit Provisions.

               (1)  Obligations   Absolute.   The  obligation  of  Borrowers  to
reimburse  Lender  for  payments  made  under,  and  other  amounts  payable  in
connection  with,  any  Lender  Letter  of  Credit  shall be  unconditional  and
irrevocable  and shall be paid  strictly  in  accordance  with the terms of this
Agreement under all circumstances including the following circumstances:

                    (a) any lack of  validity  or  enforceability  of any Lender
Letter of Credit, Risk Participation Agreement or any other agreement;

                    (b) the  existence of any claim,  set-off,  defense or other
right which any Borrower,  any of its Affiliates or Lender, on the one hand, may
at any time have against any  beneficiary  or transferee of any Lender Letter of
Credit or Bank Letter of Credit (or any Persons for whom any such transferee may
be acting), Lender or any other Person, on the other hand, whether in connection
with this  Agreement,  the  transactions  contemplated  herein or any  unrelated
transaction (including any underlying transaction between any Borrower or any of
its Affiliates and the beneficiary of the letter of credit);

                    (c) any draft,  demand,  certificate  or any other  document
presented  under any Lender  Letter of Credit  is, or is alleged to be,  forged,
fraudulent, invalid or ineffective in any respect or any statement therein being
untrue or inaccurate in any respect;


                    (d)  payment  under any  Lender  Letter  of  Credit  against
presentation of a demand,  draft or certificate or other document which does not
comply with the terms of such letter of credit;  provided  that,  in the case of
any payment by Lender or the issuer of a Bank Letter of Credit  under any Lender
Letter of Credit or Bank Letter of Credit,  either (x) Lender has not acted with
gross  negligence or willful  misconduct  (as determined by a court of competent
jurisdiction)  in  determining  that the demand for  payment  under such  Lender
Letter  of  Credit  or Bank  Letter  of  Credit  complies  on its face  with any
applicable  requirements  for a demand for payment  under such Lender  Letter of
Credit or Bank Letter of Credit or (y) the documents presented under such letter
of credit substantially comply with the terms of such letter of credit;

                    (e) any other circumstance or happening whatsoever, which is
similar to any of the  foregoing,  provided that this clause (e) shall not apply
to any payment by Lender under a Lender  Letter of Credit where the  beneficiary
fails fully to comply with the  conditions  for drawing unless either (x) Lender
has not acted with gross  negligence or willful  misconduct  (as determined by a
court of  competent  jurisdiction)  in  determining  that the demand for payment
under such  Lender  Letter of Credit  complies  on its face with any  applicable
requirements for a demand for payment thereunder or (y) the documents  presented
under such letter of credit  substantially  comply with the terms of such letter
of credit; or

                    (f) the fact that a  Default  or an Event of  Default  shall
have occurred and be continuing.

               (2) Nature of Lender's Duties. As between Lender on the one hand,
and  Borrowers,  on the other hand,  Borrowers  assume all risks of the acts and
omissions  of, or misuse of any  Lender  Letter of Credit  by,  the  beneficiary
thereof. In furtherance and not in limitation of the foregoing, Lender shall not
be responsible: (a) for the form, validity,  sufficiency,  accuracy, genuineness
or legal  effect of any  document in  connection  with the  application  for and
issuance of any Lender  Letter of Credit,  even if it should in fact prove to be
in any or all respects invalid, insufficient,  inaccurate, fraudulent or forged;
(b) for the validity or sufficiency of any instrument  transferring or assigning
or purporting to transfer or assign any Lender Letter of Credit or the rights or
benefits thereunder or proceeds thereof, in whole or in part, which may prove to
be invalid or ineffective for any reason;  (c) for failure of the beneficiary of
any Lender Letter of Credit to comply fully with conditions required in order to
demand payment  thereunder;  provided that, in the case of any payment by Lender
under any Lender  Letter of  Credit,  either (x) Lender has not acted with gross
negligence  or  willful  misconduct  (as  determined  by a  court  of  competent
jurisdiction)  in  determining  that the demand for  payment  under such  Lender
Letter of Credit  complies on its face with any  applicable  requirements  for a
demand for payment  thereunder or (y) the documents  presented under such letter
of credit  substantially comply with the terms of such letter of credit; (d) for
errors,  omissions,  interruptions  or delays in transmission or delivery of any
messages, by mail, cable, telegraph, telex or otherwise,  whether or not they be
in cipher; (e) for errors in interpretation of technical terms; (f) for any loss
or delay in the  transmission or otherwise of any document  required in order to
make a payment  under any  Lender  Letter of  Credit;  (g) for the credit of the
proceeds  of any  drawing  under any Lender  Letter of  Credit;  and (h) for any
consequences arising from causes beyond the control of Lender. None of the above
shall affect, impair, or prevent the vesting of any of Lender's rights or powers
hereunder.


               (3)  Liability.  In  furtherance  and  extension  of  and  not in
limitation of the specific  provisions  herein above set forth, any action taken
or omitted by Lender under or in connection with any Lender Letter of Credit, if
taken or  omitted  in good  faith,  shall not put  Lender  under  any  resulting
liability to any Borrower,  provided that this  paragraph (3) shall not apply if
Lender makes a payment  under a Lender  Letter of Credit  where the  beneficiary
fails fully to comply with the conditions for drawing,  unless either (x) Lender
has not acted with gross  negligence or willful  misconduct  (as determined by a
court of  competent  jurisdiction)  in  determining  that the demand for payment
under such  Lender  Letter of Credit  complies  on its face with any  applicable
requirements for a demand for payment thereunder or (y) the documents  presented
under such letter of credit  substantially  comply with the terms of such letter
of credit.

          (H)  Appointment  of Borrower  Representative.  Each  Borrower  hereby
designates  Systems and the other Borrower,  each acting singly or together with
the other, as its  representative  and agent (each a "Borrower  Representative")
for the purposes of initiating borrowing requests,  requesting Lender Letters of
Credit,  selecting  interest rate options and giving and  receiving  notices and
consents  hereunder or under any of the other Loan Documents.  Lender may regard
any  notice  or  other  communication  pursuant  to any Loan  Document  from any
Borrower  Representative  as a notice  or  communication  from  Borrowers.  Each
Borrower  hereby  covenants  and agrees that each  representation  and warranty,
covenant,  agreement and undertaking made in its name or on its behalf by either
Borrower  Representative  shall be deemed for all  purposes to have been made by
such Borrower and shall be binding upon and enforceable against such Borrower to
the same extent as if the same had been made directly by such Borrower.

     2.2  Interest.

          (A) Rate of Interest.  The Loans and all other  Obligations shall bear
interest from the date such Loans are made or such other Obligations  become due
to the date paid at a rate per annum equal to (i) in the case of Base Rate Loans
and other  Obligations  for which no other interest rate is specified,  the Base
Rate plus the Applicable Base Rate Margin,  and (ii) in the case of LIBOR Loans,
LIBOR plus the  Applicable  LIBOR Margin (the "Interest  Rate").  The applicable
basis  for  determining  the rate of  interest  shall be  selected  by  Borrower
Representative  initially at the time a Notice of Borrowing is given pursuant to
subsection  2.1(C).  The basis for determining the interest rate with respect to
any Loan or a portion of any Loan may be changed  from time to time  pursuant to
subsection  2.2(E). If on any day a Loan or a portion of any Loan is outstanding
with respect to which notice has not been delivered to Lender in accordance with
the terms of this  Agreement  specifying the basis for  determining  the rate of
interest,  then for that day that Loan or portion  thereof  shall bear  interest
determined by reference to the Base Rate.

     After the occurrence and during the  continuance of an Event of Default (i)
the  Loans and all other  Obligations  shall,  at the  option  of  Lender,  bear
interest  at a rate per annum  equal to two  percent  (2%)  plus the  applicable
Interest Rate (the "Default Rate"), and (ii) each LIBOR Loan shall automatically
convert to a Base Rate Loan at the end of any applicable Interest Period.  After
the occurrence and during the continuance of any Event of Default or Default, no
Loans may be converted to LIBOR Loans.


          (B) Interest  Periods.  In connection  with each LIBOR Loan,  Borrower
Representative  shall elect an interest period (each an "Interest Period") to be
applicable to such Loan, which Interest Period shall be either a one, two, three
or four month period; provided that:

               (1) the initial Interest Period for any LIBOR Loan shall commence
on the Funding Date of such Loan;

               (2) in the case of successive  Interest Periods,  each successive
Interest  Period shall  commence on the day on which the  immediately  preceding
Interest Period expires;

               (3) if an Interest Period  expiration date is not a Business Day,
such Interest Period shall expire on the next succeeding  Business Day; provided
that if such  succeeding  Business Day falls in the next  calendar  month,  such
Interest Period shall expire on the immediately preceding Business Day;

               (4) any Interest Period that begins on the last Business Day of a
calendar month (or on a day for which there is no numerically  corresponding day
in the calendar month at the end of such Interest Period) shall, subject to part
(5) and (6) below, end on the last Business Day of a calendar month;

               (5) no Interest Period shall extend beyond the Termination Date;

               (6) no Interest  Period may extend  beyond a scheduled  principal
payment date unless the sum of (a) the aggregate  principal amount of Loans that
are Base Rate Loans or that have  Interest  Periods  expiring  on or before such
date and (b) the Unused  Availability  equals or exceeds  the  principal  amount
required to be paid on the Loans on such date; and

               (7)  there  shall  be no more  than  five  (5)  Interest  Periods
relating to LIBOR Loans outstanding at any time.


          (C) Computation and Payment of Interest. Interest on the Loans and all
other  Obligations shall be computed on the daily principal balance on the basis
of a 360 day year for the actual  number of days  elapsed  in the period  during
which it accrues.  In computing interest on any Loan, the date of funding of the
Loan or the first day of an  Interest  Period  applicable  to such Loan or, with
respect  to a Base Rate Loan  being  converted  from a LIBOR  Loan,  the date of
conversion of such LIBOR Loan to such Base Rate Loan, shall be included; and the
date of  payment  of such  Loan or the  expiration  date of an  Interest  Period
applicable to such Loan, or with respect to a Base Rate Loan being  converted to
a LIBOR Loan,  the date of conversion of such Base Rate Loan to such LIBOR Loan,
shall be excluded; provided that if a Loan is repaid on the same day on which it
is made, one day's  interest  shall be paid on that Loan.  Interest on Base Rate
Loans and all other  Obligations  other  than  LIBOR  Loans  shall be payable to
Lender  monthly in arrears  on the first day of each  month,  on the date of any
prepayment  of Loans,  and at maturity,  whether by  acceleration  or otherwise.
Interest  on LIBOR  Loans  shall be  payable  to  Lender  on the last day of the
applicable  Interest  Period for such Loan, on the date of any prepayment of the
Loans, and at maturity,  whether by acceleration or otherwise.  In addition, for
each LIBOR Loan having an Interest Period longer than three (3) months, interest
on such  Loan  shall  also be  payable  on the last day of each  three (3) month
interval during such Interest Period.

          (D)  Interest  Laws.  Notwithstanding  any  provision  to the contrary
contained in this Agreement or any other Loan Document,  Borrowers  shall not be
required to pay, and Lender  shall not be  permitted  to collect,  any amount of
interest in excess of the maximum amount of interest permitted by applicable law
("Excess  Interest").  If any Excess Interest is provided for or determined by a
court of competent  jurisdiction  to have been provided for in this Agreement or
in any other Loan  Document,  then in such  event:  (1) the  provisions  of this
subsection shall govern and control; (2) neither any Borrower nor any other Loan
Party shall be obligated  to pay any Excess  Interest;  (3) any Excess  Interest
that  Lender may have  received  hereunder  shall be, at  Lender's  option,  (a)
applied as a credit against the outstanding principal balance of the Obligations
or accrued and unpaid  interest (not to exceed the maximum  amount  permitted by
law),  (b)  refunded  to the  payor  thereof,  or  (c)  any  combination  of the
foregoing;  (4) the interest  rate(s) provided for herein shall be automatically
reduced to the maximum  lawful rate allowed  from time to time under  applicable
law (the "Maximum Rate"),  and this Agreement and the other Loan Documents shall
be deemed to have been and shall be,  reformed  and  modified  to  reflect  such
reduction;  and (5) neither any Borrower nor any other Loan Party shall have any
action against  Lender for any damages  arising out of the payment or collection
of any Excess Interest. Notwithstanding the foregoing, if for any period of time
interest on any  Obligations  is  calculated at the Maximum Rate rather than the
applicable  rate under this  Agreement,  and  thereafter  such  applicable  rate
becomes  less  than the  Maximum  Rate,  the rate of  interest  payable  on such
Obligations  shall  remain at the  Maximum  Rate  until each  Lender  shall have
received  the amount of interest  which such Lender would have  received  during
such period on such Obligations had the rate of interest not been limited to the
Maximum Rate during such period.

          (E)  Conversion  or   Continuation.   Subject  to  the  provisions  of
subsection 2.2(A),  Borrower Representative shall have the option to (1) convert
at any time all or any part of outstanding  Loans equal to $500,000 and integral
multiples  of  $100,000  in excess of that  amount from Base Rate Loans to LIBOR
Loans or (2) upon the  expiration of any Interest  Period  applicable to a LIBOR
Loan,  to (a)  continue  all or any portion of such LIBOR Loan equal to $500,000
and integral  multiplies of $100,000 in excess of that amount as a LIBOR Loan or
(b)  convert  all or any  portion of such  LIBOR  Loan to a Base Rate Loan.  The
succeeding  Interest  Period(s) of such  continued or converted Loan commence on
the last day of the Interest  Period of the Loan to be  continued or  converted;
provided that no outstanding  Loan may be continued as, or be converted  into, a
LIBOR Loan, when any Event of Default or Default has occurred and is continuing.

          Borrower     Representative     shall     deliver    a    notice    of
conversion/continuation  to Lender no later  than noon (New York  time) at least
three (3) Business Days in advance of the proposed  conversion/continuation date
("Notice of Conversion/Continuation"). A Notice of Conversion/Continuation shall
certify:  (1)  the  proposed  conversion/continuation  date  (which  shall  be a
Business  Day);  (2) the amount of the Loan to be  converted/continued;  (3) the
nature of the proposed  conversion/continuation;  (4) in the case of  conversion
to, or a continuation of, a LIBOR Loan, the requested  Interest Period;  and (5)
that no Default or Event of Default  has  occurred  and is  continuing  or would
result from the proposed conversion/continuation.


          In lieu of delivering the Notice of Conversion/Continuation,  Borrower
Representative  may give Lender  telephonic  notice by the required  time of any
proposed  conversion/continuation  under this subsection  2.2(E);  provided that
such notice  shall be promptly  confirmed  in writing by delivery of a Notice of
Conversion/Continuation    to    Lender    on    or    before    the    proposed
conversion/continuation date.

          Lender  shall not incur any  liability to Borrowers in acting upon any
telephonic  notice  referred to above that Lender believes in good faith to have
been given by a duly  authorized  officer or other person  authorized  to act on
behalf of Borrower or for otherwise  acting in good faith under this  subsection
2.2(E)  and upon  conversion/continuation  by  Lender  in  accordance  with this
Agreement pursuant to any telephonic notice,  Borrower Representative shall have
effected such conversion or continuation, as the case may be, hereunder.

     2.3 Fees.

          (A) Unused Line Fee. Borrowers shall pay to Lender each month a fee in
an amount equal to the average daily  Revolving Loan  Commitment less the sum of
the average  daily  balance of the  Revolving  Loan during the  preceding  month
multiplied  by  one  half  of one  percent  (.50%)  per  annum,  such  fee to be
calculated  on the basis of a 360 day year for the actual number of days elapsed
and to be  payable  monthly  in  arrears  on the first  day of the  first  month
following the Closing Date and the first day of each month thereafter.

          (B) Letter of Credit Fees.  Borrowers shall pay to Lender each month a
fee with  respect to the Lender  Letters of Credit in the amount of the  average
daily  amount of  Letter  of Credit  Liability  outstanding  during  such  month
multiplied by the Applicable LIBOR Margin in effect from time to time per annum.
Such  fees  will be  calculated  on the  basis of a 360 day year for the  actual
number of days  elapsed and will be payable  monthly in arrears on the first day
of each month.  Borrowers  shall also reimburse  Lender for any and all fees and
expenses,  including  issuance fees, if any, paid by Lender to the issuer of any
Bank Letter of Credit.

          (C) Audit Fees.  Borrowers  agree to pay to Lender promptly after each
request from Lender an audit fee for each inspection equal to Lender's costs per
auditor  per  day  or any  portion  thereof,  together  with  all  out-of-pocket
expenses,  and  Borrowers  agree to  reimburse  Lender  for all fees,  costs and
expenses  paid by Lender to third party  auditors.  The maximum  amount  payable
under this  subsection  2.3 (C) in any calendar  year shall not exceed  $20,000,
provided  that such limit shall not apply after the  occurrence  of any Event of
Default.

          (D) Collateral  Monitoring Fees.  Borrowers shall pay to the Lender on
the first day of each month after the Closing Date a collateral  monitoring  fee
for the preceding month equal to $500.

          (E) Other Fees and Expenses. Borrowers shall pay to Lender all charges
for  returned  items and all other bank charges  incurred by Lender,  as well as
Lender's  standard wire transfer  charges for each wire transfer made under this
Agreement.

          (F) Fees  Non-Refundable.  All of the fees payable  under  Section 2.3
shall be non-refundable.

     2.4 Payments and Prepayments.

          (A) Manner and Time of  Payment.  In its sole  discretion,  Lender may
charge interest and other amounts  payable  hereunder to the Revolving Loan, all
as set forth on Lender's  books and records.  If Lender elects to bill Borrowers
for any amount due hereunder,  such amount shall be immediately  due and payable
with interest  thereon as provided  herein.  All payments made by Borrowers with
respect to the Obligations shall be made without deduction,  defense,  setoff or
counterclaim.  All payments to Lender hereunder shall, unless otherwise directed
by Lender,  be made to Lender's  Account or in accordance  with  subsection 5.6.
Proceeds  remitted to Lender's  Account shall be credited to the  Obligations on
the Business Day such proceeds were received;  provided,  however, that, for the
purpose of  calculating  interest on the  Obligations,  such  proceeds  shall be
deemed  received  on the  second  Business  Day after  receipt  by the Lender of
immediately available funds.

          (B) Mandatory Prepayments, etc..

               (1) Overadvance.  At any time that the Revolving Loan exceeds the
Maximum  Revolving Loan Amount,  Borrowers shall immediately repay the Revolving
Loan to the extent necessary to reduce the principal  balance to an amount equal
to or less than the Maximum  Revolving Loan Amount.  At any time that the sum of
the  Revolving  Loan  outstanding  to any  Borrower  plus the  Letter  of Credit
Liability  at such time,  but only in respect of any Letter of Credit  issued on
behalf of such Borrower exceeds that portion of the Borrowing Base  attributable
to such Borrower,  then such Borrower shall immediately repay the Revolving Loan
to eliminate such excess. If the Revolving Loan is fully repaid, and such excess
still exists, Borrowers shall immediately deposit cash collateral with Lender in
an amount equal to such excess.

               (2) Proceeds of Asset Dispositions.  At such time that the sum of
all proceeds of all Asset  Dispositions  and all proceeds  (net of  underwriting
discounts and commissions  and all other  reasonable  costs  associated with the
transaction)  from any sale or issuance  of any equity or  security  received by
Systems,  Borrowers and their respective  Subsidiaries exceeds $50,000, then any
proceeds received above such amount ("Excess Proceeds") shall be subject to this
subsection  2.4(B)(2).  The Borrowers  shall,  immediately  upon receipt of such
Excess  Proceeds,  prepay  the  Obligations  in an amount  equal to such  Excess
Proceeds and, after all  Obligations  shall have been paid in full,  deposit any
remaining Excess Proceeds as cash collateral with the Lender; provided, however,
that  Lender  shall  release  such cash  collateral  upon  request of a Borrower
Representative  if no  Default or Event of Default  shall have  occurred  and be
continuing.


          (C) Voluntary  Prepayments and Repayments.  Borrowers may, at any time
upon not less than thirty (30) Business Days' prior notice to Lender,  terminate
the  Revolving  Loan  Commitment  and  thereupon  shall  pay in full  all of the
Obligations  without  premium or penalty (but,  for the avoidance of doubt,  the
Borrowers shall remain  obligated for all amounts payable under subsection 2.11)
and shall  cause  Lender to be  released  from all  liability  under any  Lender
Letters of Credit and Risk  Participation  Agreements  or, at  Lender's  option,
Borrowers will deposit cash collateral with Lender in an amount equal to 105% of
the Letter of Credit Liability that will remain  outstanding after prepayment or
repayment,  all under and pursuant to such instruments and documents in form and
substance satisfactory to Lender.

          (D)  Payments  on  Business  Days.  Whenever  any  payment  to be made
hereunder  shall be stated to be due on a day that is not a  Business  Day,  the
payment may be made on the next  succeeding  Business  Day,  except as otherwise
contemplated  by subsection  2.2(B) and (C), and such extension of time shall be
included in the computation of the amount of interest or fees due hereunder.

     2.5  Term  of  this  Agreement.   The  Commitments  shall  (unless  earlier
terminated  pursuant to this  Agreement)  terminate  upon the earlier of (i) the
occurrence of an event specified in subsection 8.3 or (ii) the Termination Date.
Upon  termination in accordance with subsection 8.3 or on the Termination  Date,
all  Obligations  shall become  immediately  due and payable  without  notice or
demand.  Notwithstanding any termination,  until all Obligations have been fully
paid and satisfied, Lender shall be entitled to retain all security interests in
and liens upon all  Collateral  (all of which shall be  released  at  Borrowers'
expense upon  termination of this Agreement and the  Commitments and the payment
and  satisfaction  in full of all  Obligations),  and even after  payment of all
Obligations  hereunder,  Systems' and Borrowers'  obligation to indemnify Lender
and comply with other  provisions  which survive  termination in accordance with
the terms hereof shall continue.

     2.6  Statements.  Lender  shall  render a monthly  statement  of account to
Borrower  Representative  within  twenty  (20) days after the end of each month.
Such  statement of account shall  constitute an account  stated unless  Borrower
Representative  makes written objection thereto within thirty (30) days from the
date such statement is mailed to Borrower  Representative.  Borrowers promise to
pay all of their  Obligations  as such  amounts  become due or are  declared due
pursuant to the terms of this Agreement.

     2.7 Grant of Security  Interest.  To secure the payment and  performance of
the  Obligations,   including  all  renewals,  extensions,   restructurings  and
refinancings of any or all of the  Obligations,  each Loan Party  (excluding any
subsidiary  which  is not a  Domestic  Subsidiary)  hereby  grants  to  Lender a
continuing  security interest,  lien and mortgage in and to all right, title and
interest  of such Loan Party in all  present and future  personal  property  and
fixtures of such Loan Party,  including all the following  property of such Loan
Party,  whether  now owned or  existing  or  hereafter  acquired  or arising and
regardless  of  where  located  (all  being  collectively  referred  to  as  the
"Collateral"):  (A) Accounts,  and all guaranties and security therefor, and all
goods and rights represented  thereby or arising therefrom  including the rights
of stoppage in transit,  replevin and  reclamation;  (B) Inventory;  (C) general
intangibles  and investment  property (as defined in the UCC); (D) documents (as
defined  in the UCC) or other  receipts  covering,  evidencing  or  representing
goods; (E) instruments (as defined in the UCC); (F) chattel paper (as defined in
the UCC);  (G)  Equipment;  (H)  Intellectual  Property;  (I)  deposit  accounts
maintained with any bank or financial institution; (J) cash and other monies and
property in the  possession  or under the control of Lender or any other Person;
(K) books,  records,  ledger cards,  files,  correspondence,  computer programs,
tapes,  disks and related data processing  software that at any time evidence or
contain  information  relating  to any of the  property  described  above or are
otherwise necessary or helpful in the collection thereof or realization thereon;
and (L) products and  proceeds of all or any of the  property  described  above,
including,  without limitation,  the proceeds of any insurance policies covering
any of the  above-described  property.  The Collateral shall include 100% of the
issued and outstanding shares of capital stock and other equity interests of all
direct  Domestic  Subsidiaries  of the  Borrowers  and  Guarantors  (other  than
Inactive  Subsidiaries) and 65% of the issued and outstanding  shares of capital
stock and other equity interests of all direct Subsidiaries of the Borrowers and
the  Guarantors  (other  than  Inactive  Subsidiaries)  which  are not  Domestic
Subsidiaries.

     2.8  Capital  Adequacy  and Other  Adjustments.  If the  Lender  shall have
determined  that  the  adoption  after  the  date  hereof  of any  law,  treaty,
governmental  (or  quasi-governmental)  rule,  regulation,  guideline  or  order
regarding  capital  adequacy,  reserve  requirements or similar  requirements or
compliance by Lender or any corporation  controlling  Lender with any request or
directive   regarding   capital  adequacy,   reserve   requirements  or  similar
requirements  (whether or not having the force of law and whether or not failure
to comply  therewith  would be unlawful)  from any central bank or  governmental
agency or body having  jurisdiction  does or shall have the effect of increasing
the amount of  capital,  reserves or other funds  required to be  maintained  by
Lender or any corporation  controlling  Lender and thereby  reducing the rate of
return  on  Lender's  or such  corporation's  capital  as a  consequence  of its
obligations  hereunder,  then  Borrowers  shall from time to time within fifteen
(15) days after  notice and demand from Lender  (together  with the  certificate
referred to in the next sentence) pay to Lender additional amounts sufficient to
compensate  Lender for such  reduction.  A certificate  as to the amount of such
cost and  showing  the basis of the  computation  (including  any  averaging  or
attribution  methods)  thereof  submitted  by Lender to Borrower  Representative
shall, absent manifest error, be final, conclusive and binding for all purposes.

     2.9 Taxes.

          (A) No  Deductions.  Any  and  all  payments  or  reimbursements  made
hereunder  or  under  the  Note  shall be made  free  and  clear of and  without
deduction  for  any and all  taxes,  levies,  imposts,  deductions,  charges  or
withholdings,  and all liabilities with respect thereto; excluding, however, the
following:  taxes  imposed on the net  income of Lender by the United  States of
America, or the State of New York or any political subdivision thereof (all such
taxes, levies, imposts, deductions,  charges or withholdings and all liabilities
with respect  thereto  excluding  such taxes imposed on net income,  herein "Tax
Liabilities"). If any Loan Party shall be required by law to deduct any such Tax
Liabilities  from or in respect of any sum payable  hereunder to Lender then the
sum payable  hereunder shall be increased as may be necessary (and the Borrowers
shall  pay all Tax  Liabilities  and such net  income  taxes  excluded  from the
definition of "Tax  Liabilities" on such increased amount) so that, after making
all  required  deductions,  Lender  receives an amount equal to the sum it would
have received had no such deductions been made.


          (B)  Changes in Laws.  In the event  that,  subsequent  to the Closing
Date, (i) any changes in any existing law, regulation, treaty or directive or in
the interpretation or application thereof, (ii) any new law, regulation,  treaty
or directive  enacted or any  interpretation  or application  thereof,  or (iii)
compliance by Lender or any corporation  controlling  Lender with any request or
directive  (whether  or not  having  the  force of law)  from  any  governmental
authority, agency or instrumentality:

               (1) does or shall subject Lender or any  corporation  controlling
Lender to any tax of any kind  whatsoever  with respect to this  Agreement,  the
other  Loan  Documents  or any Loans  made or Lender  Letters  of Credit  issued
hereunder or any corporation controlling Lender, or change the basis of taxation
of payments to Lender or any corporation controlling Lender of principal,  fees,
interest or any other  amount  payable  hereunder  (except for net income  taxes
imposed  by the  United  States  of  America,  or the  State  of New York or any
political  subdivision thereof,  with respect to interest or commitment or other
fees  payable  hereunder or changes in the rate of tax on the overall net income
of Lender or any corporation controlling Lender); or

               (2) does or shall impose on Lender or any corporation controlling
Lender any reserve,  special  deposit or other  condition  or increased  cost in
connection with the transactions contemplated hereby;

and the  result of any of the  foregoing  is to  increase  the cost to Lender of
issuing  any  Lender  Letter of  Credit,  entering  into any Risk  Participation
Agreement or making or continuing any Loan hereunder,  as the case may be, or to
reduce any amount receivable hereunder,  then, in any such case, Borrowers shall
promptly  pay to Lender upon its demand,  any  additional  amounts  necessary to
compensate  Lender on an after-tax  basis,  for such  additional cost or reduced
amount receivable, as determined by Lender with respect to this Agreement or the
other Loan Documents. If Lender becomes entitled to claim any additional amounts
pursuant  to  this  subsection   2.9(B),   it  shall  promptly  notify  Borrower
Representative of the event by reason of which Lender has become so entitled.  A
certificate  as to any  additional  amounts  payable  pursuant to the  foregoing
sentence submitted by Lender to Borrower  Representative  shall, absent manifest
error, be final, conclusive and binding for all purposes.

          (C) In the event  that the  Lender  actually  receives  a refund of or
credit  for  taxes in  respect  of which  any  Borrower  or  Guarantor  has made
additional  payments to the Lender under this Section 2.9 which credit or refund
is identifiable by the Lender as being a result of taxes in respect of which any
Borrower or  Guarantor  has made  additional  payments to the Lender  under this
Section 2.9, the Lender shall  promptly  notify the Borrower or Guarantor  which
made such additional  payment and shall remit to it the amount of such refund or
credit  (without  interest)  up to but not  exceeding  the  lesser  of (a)  such
additional payment or payments by such Borrower or Guarantor,  or (b) the actual
after-tax  benefit  to the  Lender  resulting  from  such  refund  or  credit as
conclusively  determined  by the  Lender.  Nothing  contained  herein  shall (i)
obligate  the Lender to apply for such a refund or credit or (ii)  afford to any
Borrower  or  Guarantor  any right to  inspect or review  any  financial  or tax
records of the Lender.


     2.10 Required Termination and Prepayment.  If on any date Lender shall have
reasonably  determined  (which  determination  shall be final and conclusive and
binding upon all  parties)  that the making or  continuation  of LIBOR Loans has
become  unlawful or  impossible  by reason of compliance by Lender in good faith
with any law,  governmental rule, regulation or order (whether or not having the
force of law and whether or not failure to comply  therewith would be unlawful),
then,  and in any such event,  Lender shall  promptly  give notice (by telephone
confirmed  in writing) to Borrower  Representative  of that  determination.  The
obligation of Lender to make or maintain its LIBOR Loans during any period after
such  notice  shall be  terminated  at the  earlier  of the  termination  of the
Interest  Period then in effect or when required by law and  Borrowers  shall no
later than the termination of the Interest Period in effect at the time any such
determination pursuant to this subsection 2.10 is made or, earlier when required
by law, repay or prepay LIBOR Loans together with all interest  accrued  thereon
or convert LIBOR Loans to Base Rate Loans.

     2.11 Compensation.  Borrowers shall compensate Lender, upon written request
by Lender  (which  request  shall set forth in  reasonable  detail the basis for
requesting  such amounts and which shall,  absent  manifest error, be conclusive
and binding upon all parties hereto),  for all losses,  expenses and liabilities
including,  without limitation,  any loss sustained by Lender in connection with
the  re-employment  of  such  funds:  (i) if for  any  reason  a  borrowing  of,
conversion  into or  continuation  of any  LIBOR  Loan  does not occur on a date
specified therefor in a Notice of Borrowing, a Notice of Conversion/Continuation
or a telephonic  request for borrowing or  conversion/continuation;  (ii) if any
prepayment  of any LIBOR  Loans  occurs on a date that is not the last day of an
Interest Period  applicable to that Loan;  (iii) if any prepayment of any of its
LIBOR Loans is not made on any date specified in a notice of prepayment given by
Borrower  Representative;  or (iv) as a  consequence  of any  other  default  by
Borrowers  to  repay  their  LIBOR  Loans  when  required  by the  terms of this
Agreement;  provided that during the period while any such amounts have not been
paid,  Lender  shall be  permitted  to  reserve  an equal  amount  from  amounts
otherwise available to be borrowed under the Revolving Loan.

     2.12 Booking of LIBOR Loans. Lender may make, carry or transfer LIBOR Loans
at, to, or for the  account  of,  any of its branch  offices or the office of an
affiliate of Lender.

     2.13  Assumptions  Concerning  Funding of LIBOR Loans.  Calculation  of all
amounts  payable to Lender under  subsection 2.11 shall be made as though Lender
(or an  affiliate)  had  actually  funded its  relevant  LIBOR Loan  through the
purchase of a LIBOR deposit bearing  interest at LIBOR in an amount equal to the
amount of that  LIBOR  Loan and having a  maturity  comparable  to the  relevant
Interest  Period and through the transfer of such LIBOR deposit from an offshore
office to a domestic office in the United States of America; provided,  however,
that  Lender may fund each of its LIBOR  Loans in any manner it sees fit and the
foregoing  assumption  shall be  utilized  only for the  calculation  of amounts
payable under subsection 2.11.

     2.14 Allocation of Collateral.

     (a) Prior to the  occurrence  of any Event of  Default,  the  Lender  shall
allocate (i) all payments from each Borrower and collections  from Collateral of
each  Borrower to the  Obligations  of the  Borrowers and (ii) all payments from
each  Guarantor,  GP Strategies and ManTech and  collections  from Collateral of
each Guarantor to the  Obligations of the Borrowers.  Such  allocation  shall be
made, at the Lender's  election,  either in accordance  with directions from the
Borrower  Representative  or on any other basis as the Lender shall determine to
use in its sole discretion.


     (b)  After  the  occurrence  and  during  the  continuance  of any Event of
Default,  the  Borrowers  and the  Guarantors  acknowledge  that pursuant to the
EximBank Documents, the Lender may assign to EximBank certain of the obligations
of Power,  Process,  the  Guarantors,  GP  Strategies  and  ManTech  under  this
Agreement and the Loan Documents and certain of the Lender's security  interests
in the Collateral. In the event of such an assignment,  the following provisions
shall apply:

          (i) Direct  Obligations of Borrowers.  Lender shall assign to EximBank
the Obligations of Power arising from Revolving Advances made or attributable to
it, and the Letter of Credit Liability arising from Letters of Credit issued for
the account of Power;  Lender shall retain the  Obligations  of Process  arising
from  Revolving  Advances made or  attributable  to it, and the Letter of Credit
Liability arising from Letters of Credit issued for the account of Process;

          (ii)  Guaranty  Obligations  of  Borrowers.  Lender  shall  assign  to
EximBank  the  Obligations  of  Process  under  Section  11 with  respect to its
guaranty of the  Obligations  of Power;  Lender shall retain the  Obligations of
Power  under  Section 11 with  respect to its  guaranty  of the  Obligations  of
Process;

          (iii) Guaranty  Obligations of Guarantors,  ManTech and GP Strategies.
Lender shall assign to EximBank the Obligations of the Guarantors  under Section
11 and the obligations of ManTech and GP Strategies under the ManTech  Guarantee
and GP Strategies  Guarantee with respect to their respective  guaranties of the
Obligations  of Power;  Lender shall retain the  Obligations  of the  Guarantors
under  Section 11 and the  obligations  of ManTech and GP  Strategies  under the
ManTech  Guarantee and GP Strategies  Guarantee with respect to their respective
guaranties of the Obligations of Process;

          (iv)  Payments  from  Borrowers  and  Guarantors.   All  payments  and
collections  from the Borrowers and the Guarantors or from any Collateral  owned
by any of them shall be allocated and applied as follows:

          (1) Borrower  Payments,  etc. With respect to payments and collections
from a Borrower,  Collateral  owned by such Borrower or Collateral  which is the
capital stock of a Borrower,  first,  to payment of (or as cash  collateral for)
Obligations  arising  from  Revolving  Advances  made  or  attributable  to such
Borrower and Letter of Credit  Liability  arising from Letters of Credit  issued
for the account of such Borrower (the "Direct  Obligations");  and,  second,  to
payment of (or as cash collateral for) Obligations arising under Section 11 with
respect to such  Borrower's  guaranty of the  Obligations of the other Borrower;
and

          (2) Guarantor  Payments etc. With respect to payments and  collections
from a Guarantor or from Collateral of a Guarantor  (other than capital stock of
the Borrowers), ratably to the Direct Obligations of the Borrowers in accordance
with the ratio of the portion of the Revolving Loan Commitment available to each
Borrower  (that is, on the date hereof,  $6,000,000  to Power and  $3,000,000 to
Process)  until all  Direct  Obligations  of a  Borrower  shall be paid (or cash
collateralized)  in full, and  thereafter  100% to the other  Borrower's  Direct
Obligations;

          (v)  Payments  from  GP  Strategies  and  ManTech.  All  payments  and
collections  from GP Strategies  and ManTech  shall be allocated  ratably to the
Direct   Obligations   of  the  Borrowers  in  accordance   with  the  following
percentages:

               (a) 54.5% to the Direct Obligations of Power, and

               (b) 45.5% to the Direct Obligations of Process,

until  all  Direct   Obligations   of  a   Borrower   shall  be  paid  (or  cash
collateralized)  in full, and  thereafter  100% to the other  Borrower's  Direct
Obligations;  provided  that  nothing  in this  paragraph  (v) shall  reduce the
amounts  payable to Lender or EximBank by GP Strategies  under the GP Strategies
Guaranty or by ManTech under the ManTech Guaranty and

          (vi)  Security  Interests,  etc.  Lender  shall  assign to EximBank an
undivided  ratable  portion  of the  security  interest  in the  Collateral  and
Lender's  rights and remedies under this Agreement and the other Loan Documents.
The  Borrowers  and  the  Guarantors   acknowledge  and  agree  that  upon  such
assignment,  each reference to the Lender in any provision of this Agreement and
the other Loan  Documents  relating to the  Collateral  shall,  except where the
context otherwise  requires,  include Lender and EximBank.  Without limiting the
foregoing:

          (1) EximBank  shall have the right to exercise all rights and remedies
under this Agreement and the Loan Documents with respect to the  Obligations and
security  interests  assigned  to it,  and the  Lender  shall  have the right to
exercise  all other  rights and  remedies  hereunder  and  thereunder,  and such
exercise of rights and remedies by the Lender and EximBank may occur at the same
or at different times; and

          (2) the reference in the fourth line of Section 2.7 to "Lender"  shall
be deemed to be a reference to "Lender and EximBank".

     The  priority  of the  security  interests  assigned  to  EximBank  and the
security interests retained by Lender shall be as follows:

          (A) EximBank shall have a first priority  security  interest in all of
the  Collateral  owned by Power and the  capital  stock of Power to  secure  the
Direct Obligations of Power assigned to EximBank; and Lender shall have a second
priority  security  interest  in all of the  Collateral  owned by Power  and the
capital stock of Power to secure the  Obligations of Power under Section 11 with
respect to its guaranty of the Obligations of Process;

          (B) Lender shall have a first priority security interest in all of the
Collateral  owned by  Process  and the  capital  stock of  Process to secure the
Direct  Obligations  of Process  retained by Lender;  and EximBank  shall have a
second priority  security interest in all of the Collateral owned by Process and
the capital stock of Process to secure the  Obligations of Process under Section
11 with  respect  to its  guaranty  of the  Obligations  of  Power  assigned  to
EximBank; and

          (C) Lender and EximBank shall have equal priority  security  interests
in all other  Collateral of the Guarantors,  and the proceeds of such Collateral
shall be shared ratably as provided in paragraph (b)(iv)(2) above.

     Neither  Lender nor  EximBank  shall  exercise  any rights or  remedies  to
enforce its second priority  security  interest provided for in paragraph (A) or
(B) above without the consent of the other,  except if all Direct Obligations of
Power or Process, as applicable, secured by the first priority security interest
provided for in paragraph (A) or (B) above have been paid in full.

     2.15 Federal Assignment of Claims Act.

     In the case of all presently  outstanding and hereafter arising Accounts of
either  Borrower or any  Guarantor  with  respect to which the United  States of
America  or any  department,  agency  or  instrumentality  thereof  ("Government
Accounts") is the obligor,  except  Accounts in the aggregate  face amount as to
all Borrowers and Guarantors less than $100,000,  the following provisions shall
apply:

     (A) On the date hereof or, in the case of such  Accounts  arising after the
date  hereof,  within five (5) Business  Days after such  Accounts  arise,  such
Borrower or  Guarantor  shall  execute  and  deliver to the Lender  confirmatory
assignments  ("Assignments")  and notices of assignment  (the "Notices") in form
and substance  satisfactory to the Lender in its sole discretion.  Each Borrower
and Guarantor hereby irrevocably  authorizes the Lender or its designee,  at the
Borrowers'  expense,  to file, at any time after the  occurrence  and during the
continuance of any Event of Default,  with the United States  government (or the
appropriate  department,  agency or instrumentality)  any such Notices, to which
Assignments may be attached,  and hereby irrevocably  appoints the Lender as its
attorney-in-fact  to execute and file any such Notices,  Assignments and related
documents at any time after the  occurrence  and during the  continuance  of any
Event of Default.

     (B) Schedule  2.15 is a true and complete list of all  Government  Accounts
existing on the date hereof.


                      SECTION 3. CONDITIONS TO LOANS, ETC.

     3.1 Conditions to Loans,  etc. The  obligations of Lender to make Loans and
the  obligation of Lender to issue Lender  Letters of Credit on the Closing Date
and on each Funding Date are subject to  satisfaction  of all of the  conditions
set forth below.

          (A)  Closing  Deliveries.  Lender  shall  have  received,  in form and
substance  satisfactory  to Lender,  all documents,  instruments and information
identified on Schedule  3.1(A) and all other  agreements,  notes,  certificates,
orders,  authorizations,  financing  statements,  mortgages and other  documents
which  Lender  may  at any  time  reasonably  request,  including  the  EximBank
Documents, the GP Strategies Guarantee and the ManTech Guarantee.

          (B)  Security  Interests.  Lender  shall  have  received  satisfactory
evidence that all security  interests  and liens  granted to Lender  pursuant to
this  Agreement  or the  other  Loan  Documents  have been  duly  perfected  and
constitute  first  priority liens on the  Collateral,  subject only to Permitted
Encumbrances.


          (C) Closing Date Availability. After giving effect to the consummation
of the transactions  contemplated  hereunder on the Closing Date and the payment
by  Borrowers  of all costs,  fees and expenses  relating  thereto,  the Maximum
Revolving  Loan Amount on the Closing Date shall exceed the Revolving  Loan plus
the Letter of Credit Liability by at least $2,000,000.

          (D) Representations and Warranties. The representations and warranties
contained  herein and in the Loan Documents shall be true,  correct and complete
in all material  respects on and as of the Closing Date and that Funding Date to
the  same  extent  as  though  made  on and as of  that  date,  except  for  any
representation  or warranty  limited by its terms to a specific  date and taking
into  account any  amendments  to the  Schedules  or Exhibits as a result of any
disclosures  made by Systems and  Borrowers to Lender after the Closing Date and
approved by Lender in its sole discretion.

          (E) Fees.  Borrowers  shall have paid the fees  payable on the Closing
Date referred to in subsection 2.3. and shall have paid or reimbursed Lender for
any fees payable by Borrowers or Lender under the EximBank Documents.

          (F) No Default.  No event shall have  occurred  and be  continuing  or
would result from the  consummation of the requested  borrowing or issuance of a
Lender Letter of Credit that would constitute an Event of Default or a Default.

          (G)  Performance of  Agreements.  Each Loan Party shall have performed
all  agreements and satisfied all  conditions  which any Loan Document  provides
shall be performed by it on or before that Funding Date.

          (H) No  Prohibition.  No  order,  judgment  or  decree  of any  court,
arbitrator or governmental  authority shall purport to enjoin or restrain Lender
from making any Loans or issuing any Lender Letters of Credit.

          (I) No Litigation.  There shall not be pending or, to the knowledge of
Systems or Borrowers,  threatened,  any action,  charge,  claim,  demand,  suit,
proceeding,  petition,  governmental investigation or arbitration by, against or
affecting  Systems,  either Borrower or any of their respective  Subsidiaries or
any  property  of any such  Person  that could in the  opinion of Lender  have a
Material  Adverse  Effect and that has not been disclosed to Lender by Borrowers
in writing,  and there shall have  occurred no  development  in any such action,
charge, claim, demand, suit, proceeding, petition, governmental investigation or
arbitration  that has been  disclosed to Lender that,  in the opinion of Lender,
could have a Material Adverse Effect.

          (J) Indebtedness. All Indebtedness of all of the Loan Parties shall be
repaid with the initial  Revolving  Loans and  arrangements  satisfactory to the
Lender shall have been made with respect to all letters of credit issued for the
account of any Loan Party which remains  outstanding on the Closing Date, except
the foregoing shall not apply to Indebtedness  which is permitted to exist under
Section 7.1.

          (K)  Borrowing  Base  Certificate.  The Lender  shall have  received a
Borrowing Base  Certificate  current within 5 Business Days prior to the Funding
Date in the case of Power and 30 days prior to the  Funding  Date in the case of
Process.

          (L) Export Orders. In the case of Power,  Lender shall have received a
written  summary of the Export Orders against which the Loan or Lender Letter of
Credit is to be made current  within 5 Business  Days prior to the Funding Date,
except if there  have been no  changes  since the  delivery  of the most  recent
summary, each such summary to comply with the MGA.

     3.2  Additional  Conditions to Loans to Fund  Permitted  Acquisitions.  The
obligations of Lender to make Loans to fund Permitted  Acquisitions  are subject
to  satisfaction  of all of the  conditions  set  forth in  subsection  7.6,  in
addition to those conditions set forth in subsection 3.1.

                    SECTION 4. REPRESENTATIONS AND WARRANTIES

     To induce  Lender to enter  into this  Agreement,  and to make Loans and to
issue Lender  Letters of Credit,  each of Systems,  the  Borrowers and the other
Guarantors  represents and warrants to Lender that the following  statements are
and will be true, correct and complete:

     4.1 Organization, Powers, Capitalization.

          (A) Organization and Powers. Each of the Loan Parties is a corporation
duly  organized,  validly  existing and in good  standing  under the laws of its
jurisdiction of incorporation  and qualified to do business and in good standing
in all states and countries  where such  qualification  is required except where
failures to be so qualified could not in the aggregate be reasonably expected to
have a Material  Adverse  Effect.  Each of the Loan  Parties  has all  requisite
corporate power and authority to own and operate its properties, to carry on its
business as now  conducted  and proposed to be  conducted  and to enter into and
perform each Loan Document.

          (B) Capitalization. Except as set forth on Schedule 4.1(B), all issued
and  outstanding  shares of capital  stock of each of the Loan  Parties are duly
authorized and validly issued, fully paid, nonassessable, and are free and clear
of all Liens other than those in favor of Lender and all such shares were issued
in compliance with all applicable  state,  federal and other laws concerning the
issuance of securities.  The place of organization or incorporation of each Loan
Party is  listed  in  Schedule  4.1(B).  The  capital  stock of each of the Loan
Parties is owned by the  stockholders  and in the  amounts set forth on Schedule
4.1(B) (in the case of Systems with shares held by the public being specified in
the  aggregate).  To the best knowledge of Systems,  each Person or group having
beneficial  ownership  of more than five  percent  (5%) of the capital  stock of
Systems is  identified  on Schedule  4.1(B) (the terms  "group" and  "beneficial
ownership", as used herein, having the meanings given in Section 13(d)(3) of the
Securities  Exchange  Act of  1934,  as  amended,  and  Rule  13d-3  promulgated
thereunder).  No shares of the capital stock of any Loan Party, other than those
described  above,  are issued and  outstanding.  Except as set forth on Schedule
4.1(B), there are no preemptive or other outstanding rights, options,  warrants,
conversion rights or similar  agreements or  understandings  for the purchase or
acquisition  from  any  Loan  Party  of any  shares  of  capital  stock or other
securities of any such entity.

     4.2 Authorization of Borrowing, No Conflict. Each of the Loan Parties which
is now or  hereafter a party to any Loan  Document has the  corporate  power and
authority  to incur  the  Obligations  and to grant  security  interests  in the
Collateral. On the Closing Date, the execution,  delivery and performance of the
Loan  Documents  by each  Loan  Party  signatory  thereto  will  have  been duly
authorized by all necessary  corporate and  shareholder  action.  The execution,
delivery and performance by each Loan Party of each Loan Document to which it is
a party and the consummation of the transactions  contemplated by this Agreement
and the other Loan Documents by each Loan Party, and the enforcement  thereof by
Lender (A) do not contravene and will not be in  contravention of any applicable
law, the  corporate  charter or bylaws (or other  constituent  documents) of any
Loan Party or any agreement or order by which any Loan Party or any Loan Party's
property  is bound  and (B) do not and  will not  require  any  consent,  order,
license,   validation  or  approval  of  or  filing  or  registration  with  any
government,  governmental  authority or agency,  court or  administrative  body,
except  such as have been duly  obtained,  are in full  force and effect and are
listed in  Schedule  4.2.  This  Agreement  is,  and the other  Loan  Documents,
including the Note when  executed and  delivered  will be, the legally valid and
binding   obligations  of  the  applicable  Loan  Parties   respectively,   each
enforceable  against the Loan Parties,  as applicable,  in accordance with their
respective terms.

     4.3 Financial  Condition.  All  financial  statements  concerning  the Loan
Parties which have been or will  hereafter be furnished by any of them to Lender
pursuant to this Agreement have been or will be prepared in accordance with GAAP
consistently  applied  throughout  the  periods  involved  (except as  disclosed
therein)  and  do  or  will  present  fairly  the  financial  condition  of  the
corporations (or other entities) covered thereby as at the dates thereof and the
results  of their  operations  for the  periods  then  ended.  The Pro Forma was
prepared by Systems and Borrowers  based on the unaudited  consolidated  balance
sheet of Systems,  Borrowers and their respective  Subsidiaries  dated April 30,
1999 and,  during the period from such date through the Closing Date,  there has
been no material  change in the business,  operations or financial  condition of
Systems,  either  of  Borrowers  or any of their  respective  Subsidiaries.  The
Projections  delivered  and to be  delivered  have been and will be  prepared by
Systems  and  Borrowers  in light  of the past  operations  of the  business  of
Systems,  Borrowers  and their  respective  Subsidiaries,  and such  Projections
represent and will  represent  the good faith  estimate of Systems and Borrowers
and their respective  senior  management  concerning the most probable course of
its business as of the date such Projections are prepared and delivered.

     4.4 Indebtedness and Liabilities. As of the Closing Date, no Loan Party has
(a) any  Indebtedness  except as  reflected on Schedule 4.4 and the Pro Forma or
(b) any Liabilities other than as reflected on the Pro Forma or as
incurred in the ordinary course of business following the date of the Pro Forma.

     4.5 Account Warranties. As to each existing Account: (a) at the time of its
creation,  such  Account  was  a  valid,  bona  fide  account,  representing  an
undisputed  indebtedness  (except any such disputed Account which is excluded in
whole or in part from Eligible  Accounts in accordance with paragraph (8) of the
definition of Eligible Accounts herein) incurred by the named account debtor for
goods actually sold and delivered or for services completely rendered; (b) there
are no setoffs,  offsets or  counterclaims,  genuine or otherwise,  against such
Account;  (c)  such  Account  does not  represent  a sale to an  Affiliate  or a
consignment,  sale or return or a bill and hold  transaction;  (d) no  agreement
exists  permitting any deduction or discount  (other than the discount stated on
the  invoice);  (e) the  Borrower or  Guarantor  that holds such  Account is the
lawful  owner of the Account and has the right to grant a security  interest and
assign the same to Lender;  (f) such Account is free of all security  interests,
liens and encumbrances other than those in favor of Lender; and (g) such Account
is due and payable in accordance with its terms.

     4.6 Names. Schedule 4.6 sets forth all names, trade names, fictitious names
and business names under which any Loan Party currently conducts business or has
at any time during the past six years conducted business.

     4.7  Locations;  FEIN.  Schedule  4.7 sets forth the  location of each Loan
Party's  principal place of business,  chief executive  office,  the location of
each Loan Party's  books and records,  the location of all other offices of such
Loan  Party  and all  Collateral  locations,  and such  locations  are such Loan
Party's sole  locations for its business and the  Collateral.  Each Loan Party's
federal employer  identification  number,  if any, is also set forth on Schedule
4.7.

     4.8  Title  to  Properties;   Liens.  Each  Loan  Party  and  each  of  its
Subsidiaries  has  good,  sufficient  and  legal  title,  subject  to  Permitted
Encumbrances,  to all its respective properties and assets. Except for Permitted
Encumbrances, all such properties and assets are free and clear of Liens. To the
best  knowledge of Systems and each  Borrower  after due  inquiry,  there are no
actual,  threatened  or  alleged  defaults  with  respect  to any leases of real
property  under  which  Systems,  either  Borrower  or any of  their  respective
Subsidiaries is lessee or lessor which would have a Material Adverse Effect.

     4.9 Litigation;  Adverse Facts.  Except as set forth on Schedule 4.9, there
are no judgments outstanding against any Loan Party or affecting any property of
any Loan Party nor is there any action, charge, claim, demand, suit, proceeding,
petition,  governmental investigation or arbitration now pending or, to the best
knowledge of Systems or either Borrower after due inquiry, threatened against or
affecting any Loan Party or any property of any Loan Party which individually or
in the aggregate could  reasonably be expected to result in any Material Adverse
Effect.  No Loan Party has any  notice to the  effect  that it is exposed to any
liability which could  reasonably be expected to result in any Material  Adverse
Effect.

     4.10  Payment  of Taxes.  All tax  returns  and  reports of each Loan Party
required  to be filed by any of them  have been  timely  filed,  and all  taxes,
assessments,  fees and other  governmental  charges  upon such  Persons and upon
their  respective  properties,  assets,  income and franchises which are due and
payable have been paid when due and payable or are being contested in good faith
by  appropriate   proceedings  and  appropriate   reserves  therefor  have  been
established in accordance with GAAP. Except as set forth on Schedule 4.10, as of
the Closing Date, none of the United States income tax returns of any Loan Party
are under audit. No tax liens have been filed and no claims (except as otherwise
permitted by Section 5.9) are being asserted with respect to any such taxes. The
charges, accruals and reserves on the books of each Loan Party in respect of any
taxes or other governmental charges are in accordance with GAAP.

     4.11  Performance of Agreements.  None of the Loan Parties is in default in
the performance,  observance or fulfillment of any of the obligations, covenants
or conditions contained in any contractual obligation of any such Person, and no
condition  exists that,  with the giving of notice or the lapse of time or both,
would constitute such a default.

     4.12 Employee Benefit Plans. Each Loan Party and each ERISA Affiliate is in
compliance in all material respects with all applicable provisions of ERISA, the
IRC and all  other  applicable  laws  and the  regulations  and  interpretations
thereof with respect to all Employee  Benefit Plans.  No material  liability has
been incurred by any Loan Party,  any of its Subsidiaries or any ERISA Affiliate
which remains  unsatisfied for any funding  obligation,  taxes or penalties with
respect to any Employee Benefit Plan.

     4.13  Intellectual  Property.  Each Loan Party and each of its Subsidiaries
owns,  is licensed to use or otherwise  has the right to use,  all  Intellectual
Property  used in or  necessary  for the conduct of its  business  as  currently
conducted, and all such Intellectual Property is identified on Schedule 4.13.

     4.14  Broker's  Fees.  No broker's or finder's  fee or  commission  will be
payable with respect to any of the transactions contemplated hereby.

     4.15 Environmental Compliance. Each Loan Party has been and is currently in
compliance  with all  applicable  Environmental  Laws,  including  obtaining and
maintaining in effect all permits,  licenses or other authorizations required by
applicable Environmental Laws. There are no claims, liabilities, investigations,
litigation,  administrative  proceedings,  whether  pending  or  threatened,  or
judgments  or orders  relating to any  Hazardous  Materials  which have been (a)
asserted or, to the best  knowledge of each Loan Party,  threatened  against any
Loan Party or relating to any real property  currently or formerly  owned by any
Loan  Party  or (b) to the  best  knowledge  of each  Loan  Party,  asserted  or
threatened against any real property currently or formerly leased or operated by
any Loan Party.

     4.16 Solvency. After giving effect to the transactions  contemplated by the
Loan  Documents,  and as of,  from and  after the date of this  Agreement,  each
Borrower,   each  Guarantor,  GP  Strategies  and  ManTech  (after  taking  into
consideration  all rights of  contribution  and  indemnity  it has  against  the
others):  (a) owns and will own assets the fair  salable  value of which are (i)
greater  than  the  total  amount  of  its  liabilities   (including  contingent
liabilities)  and (ii)  greater than the amount that will be required to pay the
probable  liabilities of such Person as they mature; (b) has capital that is not
unreasonably  small in relation to its  business as  presently  conducted or any
contemplated  or  undertaken  transaction;  and (c) does not intend to incur and
does not believe  that it will incur debts  beyond its ability to pay such debts
as they become due.  There is no material  fact known to Systems or any Borrower
that has or could  have a  Material  Adverse  Effect and that has not been fully
disclosed  herein  or in  such  other  documents,  certificates  and  statements
furnished to Lender for use in  connection  with the  transactions  contemplated
hereby.

     4.17 Disclosure. No representation, warranty or statement contained in this
Agreement,  the financial  statements,  the other Loan  Documents,  or any other
document,  certificate or written statement  furnished to Lender by or on behalf
of any of Systems,  either  Borrower or any Guarantor for use in connection with
the Loan Documents  contains any untrue statement of a material fact or omitted,
omits  or will  omit to state a  material  fact  necessary  in order to make the
statements   contained  herein  or  therein  not  misleading  in  light  of  the
circumstances  in which  the same  were  made.  The  projections  and pro  forma
financial  information  contained  in such  materials  are based upon good faith
estimates and assumptions  believed by such Persons to be reasonable at the time
made.  There is no  material  fact  known to any Loan Party that has had or will
have a Material Adverse Effect and that has not been disclosed herein or in such
other  documents,  certificates  and  statements  furnished to Lender for use in
connection with the transactions contemplated hereby.

     4.18 Insurance.  Each Loan Party maintains  adequate insurance policies for
public liability,  workers  compensation,  employee benefit liability,  fidelity
liability,  directors' and officers' liability,  errors and omissions,  property
damage  for  its  business  and  properties,  product  liability,  and  business
interruption  in amounts  customarily  carried or maintained by  corporations of
established reputation engaged in similar businesses.  Such policies are in full
force and effect.  No notice of  cancellation  has been received with respect to
such policies and such Loan Party and each of its  Subsidiaries is in compliance
with all conditions contained in such policies.

     4.19  Compliance  with  Laws.  No Loan  Party is in  violation  of any law,
ordinance,  rule, regulation,  order, policy,  guideline or other requirement of
any domestic or foreign  government or any  instrumentality  or agency  thereof,
having  jurisdiction  over the conduct of its  business or the  ownership of its
properties,  including,  without limitation,  any violation relating to any use,
release,  storage,  transport  or  disposal  of any  Hazardous  Material,  which
violation  would subject such Loan Party or any of its  Subsidiaries,  or any of
its  respective  officers  to  criminal  liability  or  individually  or in  the
aggregate with all such  violations  have a Material  Adverse Effect and no such
violation has been alleged.

     4.20 Bank  Accounts.  Schedule  4.20 sets  forth the  account  numbers  and
locations of all bank accounts of each Loan Party.

     4.21  Subsidiaries.  Neither Systems nor any Borrower has any  Subsidiaries
other than as set forth on Schedule 4.1(B).

     4.22 Employee  Matters.  Except as set forth on Schedule  4.22, (a) no Loan
Party  nor any of such Loan  Party's  employees  is  subject  to any  collective
bargaining  agreement,  (b) no petition for  certification  or union election is
pending  with  respect  to the  employees  of any  Loan  Party  and no  union or
collective  bargaining unit has sought such  certification  or recognition  with
respect  to the  employees  of any Loan  Party  and (c)  there  are no  strikes,
slowdowns,  work stoppages or controversies pending or, to the best knowledge of
any Loan Party  after due  inquiry,  threatened  between  any Loan Party and its
respective  employees,  other than employee  grievances  arising in the ordinary
course of business  which  could not  reasonably  be  expected  to have,  either
individually or in the aggregate, a Material Adverse Effect. Except as set forth
on Schedule 4.22, no Loan Party is subject to an employment contract.

     4.23 Governmental Regulation.  None of the Loan Parties is, or after giving
effect to any loan will be,  subject  to  regulation  under the  Public  Utility
Holding Company Act of 1935, the Federal Power Act or the Investment Company Act
of 1940 or to any federal or state statute or regulation limiting its ability to
incur indebtedness for borrowed money.

     4.24 Real  Property.  On the date hereof,  none of the Loan Parties owns or
has any option to acquire any real  property,  including  land or buildings,  or
leases any real property under a lease or other  agreement with a term exceeding
five years except as disclosed in Schedule 4.24.

                        SECTION 5. AFFIRMATIVE COVENANTS

Each of Systems,  the  Borrowers and the other  Guarantors  covenants and agrees
that, so long as the Commitment  hereunder  shall be in effect and until payment
in full of all  Obligations  and  termination  of all Lender  Letters of Credit,
unless Lender shall otherwise give its prior written  consent,  each of Systems,
the Borrowers and the other  Guarantors  shall perform,  and shall cause each of
its Subsidiaries to perform,  all covenants in this Section 5 applicable to such
Person or Persons.

     5.1 Financial  Statements  and Other  Reports.  Systems,  Borrowers and the
other Guarantors will maintain, and cause each of their respective  Subsidiaries
to maintain,  a system of accounting  established and administered in accordance
with sound business practices to permit  preparation of financial  statements in
conformity with GAAP.  Borrowers will deliver or cause to be delivered to Lender
the financial statements and other reports described below.

          (A) Monthly Financials.  As soon as available, and in any event within
thirty (30) days after the end of each  month,  Borrowers  will  deliver (1) the
consolidated  and  consolidating  balance sheet of Systems,  Borrowers and their
respective Subsidiaries as at the end of such month and the related consolidated
and consolidating statements of income and statement of cash flow for such month
and for the period from the beginning of the then current Fiscal Year to the end
of such month,  and (2) a schedule of the outstanding  Indebtedness of each Loan
Party  describing in reasonable  detail each such debt issue or loan outstanding
and the principal  amount and amount of accrued and unpaid interest with respect
to each such debt issue or loan.


          (B) Quarterly  Financials,  etc. (i) As soon as available,  and in any
event before the earlier of the date one (1) Business  Day after  Systems  files
its quarterly  report on Form 10-Q with the Securities  and Exchange  Commission
for each of its first  three  Fiscal  Quarters  in each Fiscal Year and the date
forty-five  (45)  days  after the end of such  Fiscal  Quarter,  Borrowers  will
deliver, or will cause to be delivered,  to Lender, such report; (ii) in respect
of the fourth Fiscal  Quarter in each Fiscal Year, as soon as available,  and in
any event  within  forty-five  (45) days after the end of such  Fiscal  Quarter,
Borrowers  will deliver to Lender  financial  statements  that are equivalent in
format to the financial  statements that would have been included in a quarterly
report on Form 10-Q made by Systems for such  Fiscal  Quarter and (iii) in order
to  permit  the  Lender  to  comply  with its  obligations  under  the  EximBank
Documents,  Power shall  deliver to the Lender within thirty (30) days after the
end of each  Fiscal  Quarter a sampling  selected  by the Lender of copies of at
least 10% of all written export orders or contracts  which gave rise to Eligible
Accounts during the preceding Fiscal Quarter.

          (C) Year-End  Financials.  As soon as available,  and in any event not
later than  ninety  (90) days after the end of each  Fiscal Year or, if earlier,
the  date on which  Systems  files  its  annual  report  on Form  10-K  with the
Securities  and Exchange  Commission  in respect of such Fiscal Year,  Borrowers
will deliver: (1) the consolidated balance sheet of Systems, Borrowers and their
respective  Subsidiaries as at the end of such year and the related consolidated
statements of income,  stockholders'  equity and cash flow for such Fiscal Year;
(2) a schedule of the outstanding  Indebtedness of Systems,  Borrowers and their
respective  Subsidiaries describing in reasonable detail each such debt issue or
loan  outstanding  and the  principal  amount and  amount of accrued  and unpaid
interest with respect to each such debt issue or loan; (3) a report with respect
to the  financial  statements  from  a  firm  of  independent  certified  public
accountants  selected by Systems and Borrowers and  acceptable to Lender,  which
report shall be unqualified and shall state that (a) such consolidated financial
statements  present  fairly the  consolidated  financial  position  of  Systems,
Borrowers and their  respective  Subsidiaries  as at the dates indicated and the
results  of  their  operations  and  cash  flow  for the  periods  indicated  in
conformity  with  GAAP and (b)  that  the  examination  by such  accountants  in
connection  with  such  consolidated  financial  statements  has  been  made  in
accordance with generally  accepted  auditing  standards;  and (4) copies of the
consolidating  financial  statements of Systems,  Borrowers and their respective
Subsidiaries,  including (a) consolidating  balance sheets of Systems,  Borrower
and their  respective  Subsidiaries  as at the end of such Fiscal  Year  showing
intercompany  eliminations and (b) related consolidating  statements of earnings
of Systems,  Borrowers and their respective  Subsidiaries  showing  intercompany
eliminations.

          (D)  Accountants'   Certification  and  Reports.  Together  with  each
delivery of consolidated  financial  statements of Systems,  Borrowers and their
respective  Subsidiaries  pursuant to subsection 5.1(C),  Borrowers will deliver
(1) a written  statement by their independent  certified public  accountants (a)
stating  that  the  examination  has  included  a  review  of the  terms of this
Agreement  as same relate to  accounting  matters and (b)  stating  whether,  in
connection  with the  examination,  any  condition or event that  constitutes  a
Default  or an Event of  Default  has come to  their  attention  and,  if such a
condition or event has come to their attention, specifying the nature and period
of existence  thereof and (2) a copy of a letter  addressed to such  accountants
from Systems  informing  such  accountants  that a primary intent of Systems and
Borrowers was to have the  professional  services such  accountants  provided to
Systems and Borrowers in preparing their audit report and the letter referred to
in this subsection 5.1(D) benefit or influence Lender and identifying  Lender as
a party  that  Systems  and  Borrowers  have  indicated  intend  to rely on such
professional  services  provided to Systems and  Borrowers by such  accountants.
Promptly upon receipt thereof,  Systems and Borrowers will deliver copies of all
significant  reports  submitted to Systems and Borrowers by  independent  public
accountants  in  connection  with each annual,  interim or special  audit of the
financial statements of Systems, Borrowers or their respective Subsidiaries made
by such accountants,  including the comment letter submitted by such accountants
to management in connection with their annual audit.

          (E) Compliance Certificate.  Together with the delivery of each set of
financial statements  referenced in subparts (A), (B) and (C) of this subsection
5.1, Borrowers will deliver a Compliance  Certificate,  together with (i) copies
of the calculations  and work-up  employed to determine  Systems' and Borrowers'
compliance or noncompliance with the financial  covenants set forth in Section 6
and  subsection  7.1  and  (ii)  a  report  showing  in  reasonable  detail  the
calculation of the Applicable  Base Rate Margin and the Applicable  LIBOR Margin
as at the effective date of such financial  statements (the  "Applicable  Margin
Report").

          (F) Borrowing Base Certificates,  Registers and Journals. On or before
the fifth Business Day of each month from and after the Closing Date (or on each
Business Day if requested by Lender  following  the  occurrence  of any Event of
Default or when Unused  Availability  is less than  $2,000,000 or when Lender in
its  reasonable  discretion  requires  such reports on a daily basis)  Borrowers
shall deliver to Lender:  (1) a separate Borrowing Base Certificate with respect
to each  Borrower  updated to reflect the most recent sales and  collections  of
each  Borrower  through the  immediately  preceding  month (or, if  requested by
Lender on a daily basis pursuant hereto, on the immediately  preceding  Business
Day) and (2) a schedule of all  Accounts  created or  acquired by each  Borrower
during such month or, if applicable,  on such day, together with a summary aging
of all such Accounts detailing amounts due from each account debtor.  Within ten
(10)  Business  Days after the end of each  month,  Borrowers  shall  deliver to
Lender (a) an invoice  register or sales  journal  describing  all sales of each
Borrower  for such  month,  in form and  substance  reasonably  satisfactory  to
Lender, and, if Lender so requests, copies of invoices evidencing such sales and
proofs of delivery relating thereto, (b) a cash receipts journal for such month,
(c) a schedule of each customer which is owed a credit or other amount in excess
of $25,000  (which  amount  shall be  deducted  by Lender as a reserve  from the
Borrowing  Base) by any  Borrower and listing each such amount and (d) a summary
inventory report by category as of the end of such month.

          (G)  Reconciliation  Reports and Listings and Agings.  Within ten (10)
Business  Days  after the last day of each  month and from time to time upon the
request of Lender,  Borrowers shall deliver to Lender: (i) an aged trial balance
of all then existing Accounts of each Borrower; (2) an aged trial balance of all
then existing accounts payable of each Borrower; and (3) a Reconciliation Report
as at the  last  day of such  period.  All  such  reports  shall  be in form and
substance reasonably satisfactory to Lender.

          (H)  Management  Report.  Together  with each  delivery  of  financial
statements of Systems,  Borrowers and their respective  Subsidiaries pursuant to
subdivisions  (A) (on a quarterly  basis only),  and (B) of this subsection 5.1,
Borrowers  shall  deliver a copy of the complete  management's  discussions  and
analysis of financial  condition and results of operations  included in Systems'
Form 10-K or Form 10-Q, as  applicable,  filed with the  Securities and Exchange
Commission for the period covered by such financial  statements.  Such financial
statements shall be presented in reasonable detail and shall be certified by the
chief  financial  officer of Systems  and each  Borrower to the effect that such
information fairly presents the results of operations and financial condition of
Systems,  the  Borrowers  and  their  Subsidiaries  as at the  dates and for the
periods indicated.

          (I) Government Notices.  The Borrowers shall cause all Loan Parties to
deliver  to Lender  promptly  after  receipt  copies of all  notices,  requests,
subpoenas,  inquiries or other writings  received from any  governmental  agency
concerning any Employee Benefit Plan, the violation or alleged  violation of any
Environmental Laws, the storage, use or disposal of any Hazardous Material,  the
violation or alleged violation of the Fair Labor Standards Act or a Loan Party's
payment  or  non-payment  of any taxes  including  any tax  audit if the  matter
referred to therein,  if  adversely  determined,  could have a Material  Adverse
Effect or result in any Lien on any assets of a Loan Party.

          (J) Events of Default,  etc.  Promptly  upon (but in any event  within
five (5) Business Days after) any officer of any Loan Party obtaining  knowledge
of any of the following  events or  conditions,  the Borrowers and Systems shall
deliver a certificate of the chief executive officer, chief financial officer or
other officer of Systems having  responsibility  for finance matters  specifying
the nature and period of  existence  of such  condition or event and what action
such Loan Party has taken, is taking and proposes to take with respect  thereto:
(1) any condition or event that constitutes an Event of Default or Default;  (2)
any notice of  default  that any Person has given to any Loan Party or any other
action taken with  respect to a claimed  default;  or (3) any  Material  Adverse
Effect.

          (K) Trade Names.  Borrowers will give Lender at least thirty (30) days
advance  written  notice  of any  change  of name or of any  new  trade  name or
fictitious business name by any Loan Party or any of its Subsidiaries. Each Loan
Party's use of any trade name or fictitious  business name will be in compliance
with all laws regarding the use of such names.

          (L)  Locations.  Borrowers  will give Lender at least thirty (30) days
advance  written  notice of any change in any Loan  Party's  principal  place of
business  or any  change  in  the  location  of its  books  and  records  or the
Collateral or of any new location for its books and records or the Collateral.

          (M) Bank Accounts.  Loan Parties will give Lender prompt notice of any
new bank accounts any Loan Party intends to establish prior to its opening same.

          (N)  Litigation.  Promptly  upon  (but in any  event  within  five (5)
Business  Days after) any officer of any Loan Party  obtaining  knowledge of (1)
the institution of any action, suit, proceeding,  governmental  investigation or
arbitration  against or  affecting  any Loan Party or any  property  of any Loan
Party not  previously  disclosed by a Loan Party to Lender  which,  if adversely
determined, could have a Material Adverse Effect or (2) any material development
in any action, suit,  proceeding,  governmental  investigation or arbitration at
any time pending against or affecting any Loan Party or any property of any Loan
Party which could  reasonably  be  expected to have a Material  Adverse  Effect,
Borrowers  will  promptly  give notice  thereof to Lender and provide such other
information  as may be  reasonably  available  to them to enable  Lender and its
counsel to evaluate such matter.

          (O)  Projections.  As soon as available and in any event no later than
the end of each Fiscal  Year of  Systems,  Borrowers  will  deliver  preliminary
Projections  of Systems,  Borrowers and their  respective  Subsidiaries  for the
forthcoming  three Fiscal Years,  year by year, and for the  forthcoming  Fiscal
Year, month by month,  and shall deliver the final  Projections for such periods
as soon as  available  and in any event no later than January 31 in the first of
such three Fiscal Years.

          (P) Other  Indebtedness  Notices.  Borrowers  shall  promptly  deliver
copies of all notices  given or  received  by (but in any event  within five (5)
Business Days after  receipt from) any Loan Party with respect to  noncompliance
with any term or condition (1) related to any Indebtedness in excess of $250,000
either  individually or in the aggregate or (2) of any EximBank  Documents,  and
shall  promptly  notify  Lender of any potential or actual event of default with
respect to any such Indebtedness or EximBank Documents or agreements.

          (Q) Other  Information.  With  reasonable  promptness,  Borrowers will
deliver  such other  information,  reports,  contracts,  invoices  and data with
respect to any Loan Party or the  Collateral  as Lender may  reasonably  request
from time to time.

          (R)  Opening  Balance  Sheet.  As soon as  available  and in any event
within  ninety  (90) days  after the  Closing  Date,  Borrowers  will  deliver a
consolidated and  consolidating  balance sheet as of May 31, 1999,  certified by
the chief  financial  officer of Systems and each Borrower as fairly  presenting
the consolidated and consolidating financial condition of Systems, Borrowers and
their   Subsidiaries  in  accordance  with  GAAP,   subject  to  year-end  audit
adjustments.

          (S) Public Filings.  Within five (5) Business Days after the filing or
release thereof,  Systems and Borrowers will deliver a copy of each registration
statement  (and  amendment  and  supplement  thereto),  report,  press  release,
prospectus,  proxy  statement  or  other  filing  or  disclosure  made  with any
securities  commission,  exchange or  association or under the Securities Act of
1933,  the  Securities  Exchange Act of 1934, any related laws or regulations or
any comparable state acts, laws or regulations relating to any of them or any of
their respective Subsidiaries.

     5.2  Access  to  Accountants  and  Management.  Systems  and the  Borrowers
authorize Lender to discuss the financial condition and financial  statements of
any Loan  Party  with such Loan  Party's  independent  public  accountants  upon
reasonable  notice to Borrower  Representative  of its  intention  to do so, and
authorizes such accountants to respond to all of Lender's inquiries.  Lender may
confer with any officers of each Loan Party directly regarding such Loan Party's
business, operations and financial condition.

     5.3  Inspection.  Systems and the  Borrowers  shall  permit  Lender and any
authorized  representatives designated by Lender to visit and inspect any of the
properties  of any  Loan  Party  or any of  its  Subsidiaries,  including  their
financial and accounting  records,  and in conjunction with such inspection,  to
make copies and take extracts therefrom, and to discuss their affairs,  finances
and business with their officers and  independent  public  accountants,  at such
reasonable  times during normal business hours and as often as may be reasonably
requested.  Without limiting the foregoing,  a field audit shall be permitted at
least once every six months  for the  purposes  set forth in Section  4.4 of the
MGA.

     5.4 Collateral  Records.  The Borrowers and Guarantors  shall keep full and
accurate books and records  relating to the Collateral and shall mark such books
and records to indicate Lender's security interests in the Collateral.

     5.5 Account  Covenants;  Verification.  Borrowers shall and shall cause the
Guarantors  to, at their own  expense:  (a) at any time upon the  request of the
Lender,  cause all invoices evidencing Accounts and all copies thereof to bear a
notice that such invoices are payable to the lockboxes established in accordance
with  subsection  5.6 or otherwise  notify all account  debtors to make payments
under all present and future  Accounts to such  lockboxes and (b) use their best
efforts to assure  prompt  payment of all amounts due or to become due under the
Accounts. Discounts, credits or allowances will be issued, granted or allowed by
any Borrower to customers and returns will be accepted solely in accordance with
the  ordinary  course  of such  Borrower's  business  and  consistent  with past
practices,  provided that, upon written notice to such effect given by Lender at
any time during the  existence  of any Event of  Default,  such  practice  shall
cease.  Borrowers  will  immediately  notify Lender in the event that a customer
alleges any dispute or claim with respect to an Account if the amount in dispute
is, or the claim  involves  an  amount,  in  excess of  $10,000  or of any other
circumstances   known  to  any   Borrower   that  may  impair  the  validity  or
collectibility  of such an amount in respect of any  Account.  Lender shall have
the right, at any time or times hereafter, to verify the validity, amount or any
other matter relating to an Account, by mail,  telephone or in person. After the
occurrence of a Default or an Event of Default, Borrowers shall not, without the
prior consent of Lender,  adjust,  settle or compromise the amount or payment of
any Account,  or release  wholly or partly any customer or obligor  thereof,  or
allow any credit or discount thereon.

     5.6  Collection of Accounts and  Payments;  Cash  Management  Arrangements.
Prior to the Closing Date,  Borrowers  shall, and shall cause the Guarantors to,
establish lockboxes and blocked accounts  (collectively,  "Blocked Accounts") in
Borrowers' or such Guarantor's names with such banks ("Collecting Banks") as are
acceptable to Lender (subject to irrevocable  instructions  acceptable to Lender
as  hereinafter  set forth and  contained in  agreements  in form and  substance
acceptable  to Lender among the  applicable  Borrowers or such  Guarantor's  and
Collecting Banks and Lender  ("Blocked  Account  Agreements"))  to which,  after
notice from the Lender to the Borrower Representative, all account debtors shall
directly  remit all payments on Accounts and in which,  at all times both before
and after such notice from the Lender to the Borrower Representative,  Borrowers
and Guarantors will immediately deposit all payments  constituting  payments for
Inventory or Accounts or other  proceeds of Collateral in the identical  form in
which such  payment was made,  whether by cash or check.  The  Collecting  Banks
shall  acknowledge  and agree,  in a manner  satisfactory  to  Lender,  that all
payments  made to the Blocked  Accounts are the sole and  exclusive  property of
Lender,  and that the  Collecting  Banks  have no right of  setoff  against  the
Blocked  Accounts  and  that  all  such  payments   received  will  be  promptly
transferred to Lender's Account.  Borrowers and Guarantors hereby agree that all
payments received by Lender,  whether by cash, check, wire transfer or any other
instrument,  made to such Blocked  Accounts or otherwise  received by Lender and
whether on the Accounts or as proceeds of other  Collateral or otherwise will be
the sole and  exclusive  property  of Lender.  Borrowers  and  Guarantors  shall
irrevocably  instruct each Collecting Bank  immediately to transfer all payments
or  deposits  to the Blocked  Accounts  into  Lender's  Account.  Borrowers  and
Guarantors  and any of their  Affiliates,  employees,  agents  or other  Persons
acting  for or in concert  with any  Borrower  or  Guarantor,  shall,  acting as
trustee for Lender,  receive,  as the sole and exclusive property of Lender, any
monies,  checks, notes, drafts or any other payments relating to and/or proceeds
of  Accounts or other  Collateral  which come into the  possession  or under the
control of any  Borrower  or  Guarantor  or any of such  Affiliates,  employees,
agents or other Persons acting for or in concert with any Borrower or Guarantor,
and immediately upon receipt thereof,  Borrowers or such Persons shall remit the
same or cause the same to be remitted, in kind, to the Blocked Accounts or, upon
written direction from Lender, to Lender at its address set forth in
subsection 10.4 below.

     5.7 Endorsement.  Each Borrower and each Guarantor  hereby  constitutes and
appoints  Lender and all Persons  designated  by Lender for that purpose as such
Borrower's or Guarantor's (as the case may be) true and lawful attorney-in-fact,
with  power to  endorse  its name to any of the  items of  payment  or  proceeds
described in subsection 5.6 above and all proceeds of Collateral  that come into
Lender's possession or under Lender's control. Both the appointment of Lender as
such Borrower's or Guarantor's (as the case may be) attorney and Lender's rights
and powers are coupled with an interest  and are  irrevocable  until  payment in
full and complete performance of all of the Obligations.

     5.8 Corporate  Existence.  Except as permitted  pursuant to subsection 7.6,
Systems,  each Borrower and each Guarantor  shall, and shall cause each of their
respective  Subsidiaries  to, at all times  preserve  and keep in full force and
effect its  corporate  existence and all rights and  franchises  material to its
business. Systems and each Borrower will promptly notify Lender of any change in
its or their respective Subsidiaries' ownership or corporate structure.

     5.9 Payment of Taxes. Systems and the Borrowers shall, and shall cause each
other Loan Party to, pay all taxes,  assessments and other governmental  charges
imposed upon it or any of its properties or assets or with respect to any of its
franchises,  business,  income or property before any penalty  accrues  thereon;
provided,  however,  that no such  tax  need be  paid  if  such  Loan  Party  is
contesting same in good faith by appropriate proceedings promptly instituted and
diligently conducted and if such Loan Party has established appropriate reserves
as shall be required in conformity with GAAP.

     5.10 Maintenance of Properties;  Insurance. Systems and the Borrowers shall
and shall cause each other Loan Party to maintain or cause to be maintained  (A)
in good repair,  working order and condition all material properties used in the
business  of any Loan  Party and will  make or cause to be made all  appropriate
repairs,  renewals and replacements  thereof and (B) with financially  sound and
reputable insurers, public liability insurance,  workers compensation,  employee
benefit  liability   insurance,   fidelity  insurance,   business   interruption
insurance,  errors and omissions  insurance,  directors' and officers' liability
insurance,  and  property  damage  insurance  with  respect to each Loan Party's
business and properties against loss or damage of the kinds customarily  carried
or maintained  by  corporations  of  established  reputation  engaged in similar
businesses  and in amounts  reasonably  acceptable to Lender.  Each Borrower and
each  Guarantor  shall cause  Lender to be named as loss payee on all  insurance
policies  relating  to  any  Collateral  and as  additional  insured  under  all
liability  policies of all Loan Parties,  in each case  pursuant to  appropriate
endorsements  in form and  substance  satisfactory  to  Lender  and each of them
hereby  collaterally  assigns  to  Lender as  security  for the  payment  of the
Obligations all such insurance. The Borrowers and the Guarantors shall apply any
proceeds  received from any policies of insurance  relating to any Collateral to
the Obligations as set forth in subsection  2.4(B). The Borrowers will, and will
cause each other Loan Party to, deliver to Lender, within ten (10) Business Days
prior  to  the  expiration  or  termination  of any  such  insurance  policy,  a
certificate of renewal or replacement of such insurance policy, as issued by the
applicable insurance company or its duly authorized agent.

     5.11 Compliance with Laws.  Systems and the Borrowers shall and shall cause
each other Loan Party to, comply with the  requirements of all applicable  laws,
rules, regulations and orders of any governmental authority as now in effect and
which may be imposed  in the future in all  jurisdictions  in which  Systems,  a
Borrower,  or any other Loan Party is now doing  business  or may  hereafter  be
doing  business,  other than those laws the  noncompliance  with which would not
have a Material Adverse Effect.

     5.12 Further Assurances.

     (A) Systems and the Borrowers  shall, and shall cause each other Loan Party
to,  from time to time,  execute  such  guaranties,  financing  or  continuation
statements,  documents,  security  agreements,  reports and other  documents  or
deliver to Lender such instruments,  certificates of title or other documents as
Lender at any time may  reasonably  request to  evidence,  perfect or  otherwise
implement the guaranties and security for repayment of the Obligations  provided
for in the Loan Documents.

     (B) At Lender's  request,  each Loan Party shall cause any newly created or
acquired Subsidiary of a Borrower or a Loan Party which is a Domestic Subsidiary
promptly to become a Borrower and/or Guarantor  hereunder and to grant to Lender
security  interests in the real,  personal and mixed property of such Subsidiary
to secure the Obligations.

     (C) Each Loan Party shall  notify  Lender prior to acquiring or leasing any
real property,  including land or buildings,  and shall execute and deliver such
mortgages  in favor of Lender and other  documents  as Lender  shall  request to
grant a first  priority  security  interest  and  mortgage,  as security for the
Obligations.  This subsection 5.12(C) shall not apply to leases with a term less
than five years under which the annual rent obligations are less than $100,000.


     (D) In the event that any  Subsidiary  which is not a  Domestic  Subsidiary
shall at any time have  Tangible  Net Worth or  EBITDA  for any two  consecutive
fiscal  quarters   (determined   for  such   Subsidiary  and  its   consolidated
Subsidiaries) which exceeds 5% of the consolidated  Tangible Net Worth or EBITDA
for such two  consecutive  fiscal  quarters of Systems,  the Borrowers and their
Subsidiaries,  the  Borrowers  shall  promptly  (and in any event within 45 days
after the end of the Fiscal  Quarter in which such  circumstance  occurs) notify
the Lender,  and deliver to the Lender  within 30 days  thereafter an opinion of
counsel in form and substance  satisfactory to Lender from a recognized law firm
in the jurisdiction where such non-Domestic Subsidiary is organized relating to,
among other things,  the due organization and existence of such Subsidiary,  the
valid issuance of its securities held by the Borrowers  and/or  Guarantors,  the
valid and  perfected  first  priority  pledge of such  securities  pursuant to a
Pledge  Agreement and the adequacy of the rights and remedies  contained in such
Pledge  Agreement.  If such  opinion  is not  satisfactory  to the Lender in all
respects,  the  Borrowers  and/or  Guarantors  shall  execute and deliver to the
Lender such  agreements,  instruments and documents as the Lender may request in
its  sole  discretion  to  more  effectively   pledge  the  securities  of  such
Subsidiary.  Notwithstanding the foregoing, Systems and Borrowers shall take all
of the  foregoing  actions with  respect to GSE Power  Systems AB within 30 days
after the Closing Date.

     5.13  Collateral  Locations.  Each  Borrower  and  Guarantor  will keep the
Collateral at the  locations  specified on Schedule 4.7. With respect to any new
location  (which in any event shall be within the  continental  United  States),
each Borrower and Guarantor will execute such documents and take such actions as
Lender deems  necessary to perfect and protect the security  interests of Lender
in the Collateral  prior to the delivery,  transfer or removal of any Collateral
to such new location.

     5.14 Instruments;  Chattel Paper,  etc.. Except to the extent  Indebtedness
evidenced  thereby  does  not  exceed  $50,000  outstanding  at any  time in the
aggregate, each Borrower and Guarantor will (A) deliver and pledge to Lender all
notes and  instruments  (as defined in the UCC) duly endorsed and accompanied by
duly executed  instruments of transfer or assignment,  all in form and substance
satisfactory to Lender,  and all letters of credit,  and (B) mark  conspicuously
all chattel paper with a legend,  in form and substance  satisfactory to Lender,
indicating  that such  chattel  paper is subject  to the  security  interest  of
Lender.

     5.15 Use of Proceeds and Margin Security.  Borrowers shall use the proceeds
of all Loans and all Lender Letters of Credit for proper  business  purposes (as
described  in the  recitals to this  Agreement  but  subject to any  limitations
contained  in the  EximBank  Documents)  consistent  with all  applicable  laws,
statutes, rules and regulations. No portion of the proceeds of any Loan shall be
used by any  Borrower or any other Loan Party for the purpose of  purchasing  or
carrying  margin stock within the meaning of Regulation G or Regulation U, or in
any manner that might cause the borrowing,  the application of such proceeds, or
the transactions  contemplated  hereby or by the other Loan Documents to violate
Regulation T or  Regulation X or any other  regulation of the Board of Governors
of the Federal Reserve System or to violate the Securities  Exchange Act of 1934
or the rules and regulations thereunder.


                         SECTION 6. FINANCIAL COVENANTS

     Each of Systems, the Borrowers and the Guarantors covenants and agrees that
so long as the  Commitment  remains in effect  and until  payment in full of all
Obligations  and termination of all Lender Letters of Credit,  unless  Borrowers
have received the prior written  consent of Lender,  Systems,  each Borrower and
each  Guarantor  shall  comply  with,  and shall cause each of their  respective
Subsidiaries to comply with, all covenants in this Section 6.

     6.1 Minimum EBITDA.  Systems,  Borrowers and their respective  consolidated
Subsidiaries  shall maintain,  on a consolidated  basis,  EBITDA for each of the
periods  specified  below in at least the amount set forth below  opposite  each
period:
<TABLE>
<CAPTION>
     Period                                                    Minimum EBITDA
     ------                                                    --------------
<S>       <C>                                                  <C>

Four Fiscal Quarters Ending:

          March 31, 1999                                       $4,350,000

          June 30, 1999                                        $5,000,000

          September 30, 1999                                   $5,650,000

          December 31, 1999                                    $6,300,000

          March 31, 2000                                       $6,475,000

          June 30, 2000                                        $6,645,000

          September 30, 2000                                   $6,800,000

          December 31, 2000 and each                           $6,950,000
          Subsequent Fiscal Quarter end.

</TABLE>

     6.2 Fixed Charge  Coverage.  (A) Systems and Borrowers and their respective
consolidated  Subsidiaries  shall not permit their Fixed Charge  Coverage,  on a
consolidated  basis,  to be less  than 1.2 to 1.0 for the four  Fiscal  Quarters
ending March 31, 1999, 1.4 to 1.0 for the four Fiscal  Quarters  ending June 30,
1999, 1.6 to 1 for the four Fiscal Quarters ending September 30, 1999, or 1.8 to
1 for the four Fiscal  Quarters  ending  December 31, 1999 or on the last day of
any Fiscal Quarter thereafter.

     (B) Each Borrower and its consolidated  Subsidiaries shall not permit their
respective  Fixed  Charge  Coverage  to be less than the ratios set forth  under
their names below for any period set forth below:

<TABLE>
<CAPTION>

Period                              Power                   Process
- ------                              -----                   -------
<S>             <C>                 <C>                       <C>

Four Fiscal Quarters ending:

     March 31, 1999                 1.8                       1.85

     June 30, 1999                  1.8                       1.90

     September 30, 1999             1.8                       1.95

     December 31, 2000              1.8                       2.0
     and each subsequent
     Fiscal Quarter end.

</TABLE>

     6.3  Tangible  Net  Worth.  Systems  and  Borrowers  and  their  respective
consolidated  Subsidiaries  shall maintain at all times on a consolidated  basis
Tangible Net Worth during each Fiscal Year equal to or greater than the Tangible
Net Worth as of the end of the immediately  preceding Fiscal Year, provided that
on  the  last  day of  each  Fiscal  Year  beginning  December  31,  1999,  such
consolidated  Tangible Net Worth shall be at least  $1,000,000  higher than such
consolidated  Tangible Net Worth as of the last day of the immediately preceding
Fiscal Year.

     6.4 EximBank  Tangible Net Worth.  Power and its consolidated  Subsidiaries
shall maintain at all times on a consolidated  basis EximBank Tangible Net Worth
equal to or greater than $7,500,000.

     6.5 Leverage. Power and its consolidated  Subsidiaries shall not permit the
ratio of  Liabilities  to EximBank  Tangible Net Worth (both as  determined on a
consolidated bases) at any time to exceed 4 to 1.

                         SECTION 7. NEGATIVE COVENANTS

     Each of Systems, the Borrowers and the Guarantors covenants and agrees that
so long as the  Commitment  remains in effect  and until  payment in full of all
Obligations  and termination of all Lender Letters of Credit,  unless  Borrowers
have received the prior written  consent of Lender,  Systems,  each Borrower and
each  Guarantor  shall  not,  and  shall  not  permit  any of  their  respective
Subsidiaries to:

     7.1  Indebtedness and Liabilities.  Directly or indirectly  create,  incur,
assume,  guaranty,  or otherwise become or remain directly or indirectly liable,
on a fixed or contingent basis, with respect to any Indebtedness except: (a) the
Obligations;  (b) Intercompany  Indebtedness  among Borrowers and Guarantors but
only to the extent not prohibited under the EximBank Documents; (c) Indebtedness
(excluding  Capital  Leases) not to exceed (in the aggregate  with  Indebtedness
permitted under clause (d) of this Section 7.1) $400,000 in the aggregate at any
time outstanding secured by purchase money Liens; (d) Indebtedness under Capital
Leases not to exceed (in the aggregate with Indebtedness  permitted under clause
(c) of this Section 7.1) $400,000 outstanding at any time in the aggregate;  and
(e) Indebtedness existing on the Closing Date and identified on Schedule 4.4 and
Indebtedness  arising  after the Closing  Date and  described in Schedule 4.4 as
future  permitted  Indebtedness.   Except  for  Indebtedness  permitted  in  the
preceding  sentence,  Systems,  Borrowers and Guarantors  will not, and will not
permit any of their  Subsidiaries  to,  incur any  Liabilities  except for trade
payables and normal  accruals in the ordinary course of business not yet due and
payable  or with  respect to which any  Borrower,  any  Guarantor  or any of its
Subsidiaries  is  contesting  in good  faith the amount or  validity  thereof by
appropriate proceedings and then only to the extent such Borrower,  Guarantor or
any  of  its  Subsidiaries  has  established  adequate  reserves  therefor,   if
appropriate under GAAP.


     7.2 Guaranties.  Except for (a) the guaranties of the Obligations  provided
hereunder and under the other Loan Documents,  (b) performance  guaranties given
by a  Borrower  or  Guarantor  in respect of a  Borrower's  performance  under a
contract which performance by a Borrower is reasonably contemplated to result in
Eligible   Accounts,   (c)  obligations   described  in  Schedule  4.4  and  (d)
endorsements  of  instruments or items of payment for collection in the ordinary
course of  business,  guaranty,  endorse,  or  otherwise in any way become or be
responsible  for any  obligations  of any  other  Person,  whether  directly  or
indirectly,  including by agreement  to purchase the  indebtedness  of any other
Person or through the purchase of goods, supplies or services, or maintenance of
working  capital or other balance sheet  covenants or  conditions,  or by way of
stock purchase, capital contribution,  advance or loan for the purpose of paying
or discharging any indebtedness or obligation of such other Person or otherwise.

     7.3 Transfers, Liens and Related Matters.

          (A)  Transfers.  Sell,  assign (by  operation of law or  otherwise) or
otherwise  dispose of, or grant any option with respect to any of the Collateral
or the  assets of such  Person,  except  that  Borrowers,  Guarantors  and their
Subsidiaries may (i) sell inventory in the ordinary course of business; and (ii)
make Asset  Dispositions  if all of the  following  conditions  are met: (1) the
market value of assets sold or otherwise  disposed of in any single  transaction
or series of related  transactions  does not exceed  $200,000 and the  aggregate
market value of assets sold or otherwise disposed of in any Fiscal Year does not
exceed $400,000;  (2) the  consideration  received is at least equal to the fair
market value of such assets,  as  determined  in good faith by such  Borrower's,
Guarantor's or Subsidiary's senior officers; (3) the sole consideration received
is cash or notes as to which a Borrower or Guarantor  shall have  delivered such
notes to Lender and  complied  with Section  5.14;  (4) the net proceeds of such
Asset Disposition are applied as required by subsection 2.4(B); (5) after giving
effect to the sale or other  disposition of the assets included within the Asset
Disposition  and the  repayment of the  Obligations  with the proceeds  thereof,
Systems and  Borrowers are in compliance on a pro forma basis with the covenants
set forth in Section 6 recomputed  for the most  recently  ended month for which
information  is  available  and are in  compliance  with  all  other  terms  and
conditions  contained in this Agreement;  and (6) no Default or Event of Default
shall then exist or result from such sale or other disposition.

          (B)  Liens.  Except for  Permitted  Encumbrances,  Liens on  equipment
described  in  Schedule  4.4 and  Liens  on up to  $800,000  of cash  collateral
securing  letters of credit  issued by First Union  National  Bank,  directly or
indirectly create,  incur, assume or permit to exist any Lien on or with respect
to any of the Collateral or the assets of such Person or any proceeds, income or
profits therefrom, whether now owned or hereafter acquired.

          (C) No Negative  Pledges.  Enter into or assume any  agreement  (other
than the Loan Documents) prohibiting the creation or assumption of any Lien upon
its properties or assets, whether now owned or hereafter acquired.


          (D) No  Restrictions  on  Distributions.  Except as  provided  herein,
directly or  indirectly  create or otherwise  cause or suffer to exist or become
effective any  consensual  encumbrance or restriction of any kind on the ability
of any Borrower,  any  Guarantor or any  Subsidiary of any Borrower or Guarantor
to: (1) pay dividends or make any other distribution on any of such Subsidiary's
capital stock or other equity owned by a Borrower, a Guarantor or any Subsidiary
of such Borrower or Guarantor;  (2) pay any indebtedness owed to any Loan Party;
(3) make  loans  or  advances  to any Loan  Party;  or (4)  transfer  any of its
property or assets to any Loan Party.

     7.4 Investments and Loans.  Make or permit to exist investments of any type
in or  loans  or  advances  to  any  other  Person  or  commit  to do any of the
foregoing, except: (a) Cash Equivalents; (b) loans and advances to employees for
moving, entertainment,  travel and other similar expenses in the ordinary course
of business in an aggregate  outstanding  amount not in excess of $75,000 to any
one employee and $300,000 in the  aggregate  for all  employees at any time with
respect to all the Loan Parties; (c) Intercompany  Indebtedness  permitted under
subsection 7.1; (d) Permitted  Acquisitions  permitted under subsection  7.6(B);
and (e)  investments  existing  on the  date of this  Agreement  in  other  Loan
Parties.

     7.5 Restricted Junior Payments. Directly or indirectly declare, order, pay,
make or set apart any sum for any  Restricted  Junior  Payment,  except that, so
long as no Default or Event of Default  shall have occurred and be continuing or
would result  therefrom  (other than in the case of Restricted  Junior  Payments
made pursuant to clause (i) below, which may be made whether or not a Default or
Event  of  Default  shall  have  occurred  and is  continuing  or  would  result
therefrom),  (A) a Borrower or any Subsidiary of a Borrower may make  Restricted
Junior Payments with respect to its common stock to the extent  necessary (i) to
permit Borrowers to pay (or deposit cash collateral for) the  Obligations;  (ii)
to permit Systems to make payments in cash in respect of Corporate Overhead; and
(iii) to permit any Borrower to pay expenses  incurred in the ordinary course of
business;  and (B) Systems may make  Restricted  Junior Payments with respect to
its  common  stock not  earlier  than 30 days  after or later than 90 days after
delivery of the financial statements referred to in subsection 5.1(C).

     7.6 Restriction on Fundamental Changes.


          (A)(i) Enter into any  transaction  of merger or  consolidation;  (ii)
liquidate,   wind-up  or  dissolve   itself  (or  suffer  any   liquidation   or
dissolution);  or (iii) convey,  sell,  lease,  sublease,  transfer or otherwise
dispose  of,  in  one  transaction  or a  series  of  transactions,  all  or any
substantial  part of its business or assets,  or the capital stock of any of its
Subsidiaries,  whether now owned or hereafter acquired;  provided, however, that
so long as no Event of Default  then exists or would  result  therefrom  (x) any
Borrower or Guarantor may merge or consolidate with, or convey, sell or transfer
all or  substantially  all of its assets to, any other  Borrower  or  Guarantor,
provided  a  Borrower  is the  surviving  corporation  in  any  such  merger  or
consolidation  and any such  transaction  shall not adversely  affect any of the
rights of Lender under the EximBank  Documents,  (y) any Inactive Subsidiary may
liquidate  or dissolve or merge or  consolidate  with or into another Loan Party
provided a Borrower  or a Guarantor  is the  surviving  corporation  in any such
merger  or  consolidation  involving  a  Borrower  or  Guarantor  and  any  such
transaction  shall not  adversely  affect any of the rights of Lender  under and
shall not be prohibited by the EximBank  Documents and (z) any Subsidiary  which
is not a Domestic Subsidiary may liquidate or dissolve,  or merge or consolidate
with or into,  another  non-Domestic  Subsidiary  or a Loan Party  (other than a
Borrower) whose capital stock is pledged (or, if a non-Domestic Subsidiary,  65%
of whose capital stock is pledged) to the Lender pursuant to a Pledge Agreement.

          (B) Acquire by purchase or otherwise,  all or any substantial  part of
the business or assets of, or stock or other  evidence of  beneficial  ownership
of, any Person or a division of any Person or  establish,  create or acquire any
new  Subsidiary;  provided,  however,  that so long as no  Default  or  Event of
Default has occurred and is continuing  before and after giving effect  thereto,
any  Borrower,  any  Guarantor or any of their  Subsidiaries  may acquire all or
substantially  all of the assets of or all the  capital  stock of any Person (in
each case, a "Permitted  Acquisition") or organize a new Subsidiary solely to do
so;  provided  that  each  Permitted   Acquisition   shall  be  subject  to  the
satisfaction of the condition  precedent that the Unused  Availability  shall be
not less  than  $2,000,000  without  giving  effect  to the  proposed  Permitted
Acquisition for the ninety (90) day period  preceding the  consummation  thereof
and  to  the  satisfaction  of  each  of  the  following  additional  conditions
precedent:

               (1) Lender  shall  receive not less than  fifteen  (15)  Business
Days' prior written notice of such proposed Permitted Acquisition,  which notice
shall  include a reasonably  detailed  description  of such  proposed  Permitted
Acquisition;

               (2) such Permitted  Acquisition shall only be of capital stock of
a Target whose assets (except assets with an aggregate  market value of $100,000
or less) are located  solely in, or those assets of a Target (except assets with
an aggregate  market value of $100,000 or less) which are located solely in, the
United States and comprising a business,  or those assets of a business,  of the
type engaged in by  Borrowers  as of the Closing  Date or a related,  similar or
compatible  business,  and which business would not subject Lender to regulatory
or third  party  approvals  in  connection  with the  exercise of its rights and
remedies under this Agreement or any other Loan Documents;

               (3) such Permitted Acquisition shall be consensual and shall have
been approved by the Target's board of directors;

               (4) the  business  and  assets  of the  Target  acquired  in such
Permitted  Acquisition shall be acquired free and clear of all Liens (other than
Permitted Encumbrances);

               (5) no Indebtedness,  contingent obligations or other liabilities
shall be  incurred or assumed in  connection  with such  Permitted  Acquisition,
except (x) Loan  advances,  (y)  ordinary  course  trade  payables  and  accrued
expenses and (z)  Indebtedness  and guaranties  permitted  under Section 7.1 and
Section 7.2;

               (6) on or prior to the date  thereof,  Lender  will be  granted a
first and prior perfected security interest (subject to Permitted  Encumbrances)
in all assets and equity  securities  being acquired  pursuant to such Permitted
Acquisition, and the Borrowers, the Guarantors and their respective Subsidiaries
shall have executed such  documents and taken such actions as may be required by
Lender in connection therewith;


               (7)  Borrowers  shall  have  delivered  to  Lender,  in form  and
substance satisfactory to Lender:

                    (i) pro forma balance  sheets of Borrowers,  Guarantors  and
their respective  Subsidiaries  (the  "Acquisition Pro Forma") on a consolidated
basis,  based on financial data as of a recent date, which shall be complete and
shall  accurately  and  fairly  represent  the  assets,  liabilities,  financial
condition  and  results  of  operations  of  Borrowers,   Guarantors  and  their
respective Subsidiaries in accordance with GAAP consistently applied, but taking
into  account  such  Permitted  Acquisition  and the  funding  of all  Loans  in
connection therewith,  and the Acquisition  Projections (as hereinafter defined)
shall  reflect that Unused  Availability  for the 90-day  period  following  the
consummation of such Permitted Acquisition will exceed $2,000,000 on a pro forma
basis  (giving  effect to such  Permitted  Acquisition  and all Loans  funded in
connection therewith as if made on the first day of such period);

                    (ii)  updated  versions  of  the  most  recently   delivered
projections  covering  the one (1) year  period  commencing  on the date of such
Permitted  Acquisition and otherwise prepared in accordance with subsections 4.3
and 4.17 (the  "Acquisition  Projections")  and based upon historical  financial
data of a recent date satisfactory to Lender, taking into account such Permitted
Acquisition; and

                    (iii)  a  certificate  of the  chief  financial  officer  of
Systems and Borrowers to the effect that: (I) each Borrower and Guarantor (after
taking into consideration all rights of contribution and indemnity such Borrower
and Guarantor has against each other Borrower and Guarantor) will be solvent (as
represented  by  Borrowers  in  subsection  4.16) upon the  consummation  of the
transaction contemplated by the Permitted Acquisition;  (II) the Acquisition Pro
Forma fairly presents the financial condition of Borrowers, Guarantors and their
respective  Subsidiaries  (on a consolidated  basis) as of the date hereof after
giving effect to the  transactions  contemplated by such Permitted  Acquisition;
(III) the Acquisition Projections are good faith estimates, based on assumptions
believed at the date of such certificate in good faith to be reasonable,  of the
future  financial  performance  of Borrowers,  Guarantors  and their  respective
Subsidiaries   subsequent  to  the  date  thereof  based  upon  the   historical
performance  and  the  projected  future  financial  performance  of  Borrowers,
Guarantors and their respective Subsidiaries; and (IV) Borrowers, Guarantors and
their respective  Subsidiaries have completed their due diligence  investigation
with respect to the Target and such Permitted  Acquisition,  which investigation
was conducted in a manner  similar to that which would have been  conducted by a
prudent   purchaser  of  a   comparable   business  and  the  results  of  which
investigation  were  acceptable to Borrowers,  Guarantors  and their  respective
Subsidiaries;

               (8) on or prior to the date of such Permitted Acquisition, Lender
shall  have  received,  in  form  and  substance  satisfactory  to  Lender,  all
collateral and security documents, opinions,  certificates,  lien search results
and other documents  reasonably  requested by Lender to evidence compliance with
the foregoing provisions of this subsection 7.6(B); and


               (9) the total  Acquisition  Costs payable in connection with such
Permitted  Acquisition  shall not exceed $750,000 and the sum of all Acquisition
Costs paid in any Fiscal  Year in  connection  with all  Permitted  Acquisitions
shall not exceed $1,000,000.

     7.7  Transactions  with Affiliates.  Directly or indirectly,  enter into or
permit to exist any  transaction  (including  the purchase,  sale or exchange of
property  or the  rendering  of any  service)  with  any  Affiliate  or with any
officer,  director or employee of any Loan Party, except for transactions in the
ordinary course of and pursuant to the reasonable requirements of Borrower's,  a
Guarantor's or one of their respective  Subsidiary's  business and upon fair and
reasonable terms which,  except for transactions  which are expressly  permitted
pursuant to the terms of this Agreement, are fully disclosed to Lender and which
are no less favorable to such Borrower,  Guarantor or Subsidiary than they would
obtain in comparable arm's length transactions with unaffiliated Persons.

     7.8  Environmental  Liabilities.  (a) Violate any applicable  Environmental
Law;  (b)  dispose  of  any  Hazardous  Materials  (except  in  accordance  with
applicable  law)  into or onto or  from,  any real  property  owned,  leased  or
operated  by any Loan  Party;  or (c) permit any Lien  imposed  pursuant  to any
Environmental Law to be imposed or to remain on any real property owned,  leased
or operated by any Loan Party.

     7.9 Conduct of Business.  Engage in any business  other than  businesses of
the type engaged in by Borrowers,  Guarantors or any  Subsidiary  thereof on the
Closing Date and related, similar types of business.

     7.10  Compliance  with ERISA.  Establish  any new Employee  Benefit Plan or
amend any existing Employee Benefit Plan if the liability or increased liability
resulting from such  establishment or amendment could be reasonably  expected to
have a Material Adverse Effect.  Neither Borrowers,  Guarantors nor any of their
Subsidiaries shall fail to establish, maintain and operate each Employee Benefit
Plan in compliance in all material  respects with the  provisions of ERISA,  the
IRC and all  other  applicable  laws  and the  regulations  and  interpretations
thereof.

     7.11 Tax Consolidations.  File or consent to the filing of any consolidated
income tax return with any Person other than Systems,  Borrowers or any of their
respective  Subsidiaries;  and in the event any  Borrower or  Guarantor  files a
return with Systems, such Borrower's or Guarantor's contribution with respect to
taxes as a  result  of the  filing  of such  consolidated  return  shall  not be
greater, nor the receipt of tax benefits less, than they would have been if such
Borrower had not filed a consolidated return.

     7.12  Subsidiaries.  Except to the extent  permitted by subsection  7.6(B),
establish, create or acquire any new Subsidiaries.

     7.13 Fiscal Year. Change its Fiscal Year.


     7.14 Press Release; Public Offering Materials.  Disclose the name of Lender
in any press release or in any  prospectus,  proxy  statement or other materials
filed with any governmental  entity relating to a public offering of the capital
stock of any Loan Party except as may be required by law.

     7.15 Bank Accounts.  Establish any new bank accounts, or amend or terminate
any  Blocked  Account or  lockbox  agreement,  without  Lender's  prior  written
consent; provided, that Borrowers,  Guarantors and their respective Subsidiaries
may  establish  additional  bank  accounts so long as in each case (a)  Borrower
Representative  provides  Lender  with at least ten (10)  Business  Days'  prior
written  notice  thereof and (b) each such bank  account  which is a  depository
account  is subject  to an  effective  Blocked  Account  Agreement  prior to the
establishment  thereof.  This Section 7.15 shall not apply to Subsidiaries which
are not Domestic Subsidiaries.

     7.16 Amendments.  Amend its certificate of incorporation,  by-laws or other
organizational documents,  except for amendments (of which prior notice has been
given  to  Lender)  that  would  not  adversely  affect  any  Obligations,   any
Collateral,  any rights of the Lender under any Loan  Document or the ability of
any Borrower or Guarantor to perform its  Obligations or conduct its business as
previously conducted.

                    SECTION 8. DEFAULT, RIGHTS AND REMEDIES

     8.1 Event of  Default.  "Event of  Default"  shall mean the  occurrence  or
existence of any one or more of the
following:

          (A) Payment.  Failure to make payment of any of the  Obligations  when
due and in the case of interest, such failure shall not be cured within five (5)
days of the applicable due date; or

          (B) Default in Other Agreements. (1) (a) Failure of any Loan Party, GP
Strategies  or  ManTech  to pay  when  due  any  principal  or  interest  on any
Indebtedness  (other than the  Obligations) or (b) breach or default of any Loan
Party, GP Strategies or ManTech with respect to any Indebtedness (other than the
Obligations);  if such  failure to pay,  breach or default  entitles  the holder
(with  the  giving  of  notice  or  passage  of time,  or  both)  to cause  such
Indebtedness  having an  individual  principal  amount in excess of  $100,000 or
having an  aggregate  principal  amount in  excess of  $200,000  to become or be
declared  due prior to its  stated  maturity;  or (2)  default  under any of the
EximBank Documents,  including any breach of any covenant thereunder  regardless
of whether such covenant is more restrictive  than, or conflicts with, or covers
the same or similar  matters as the covenants set forth in this Agreement or any
other Loan Documents; or

          (C) Breach of Certain Provisions. Failure of any Loan Party to perform
or comply with any term or condition contained in subsections 5.1 (A), (B), (C),
(F) or (J) or 5.3,  5.5,  5.6 or 5.12(D) or contained in Section 6 or Section 7;
or


          (D) Breach of Warranty. Any representation, warranty, certification or
other  statement  made by any Loan Party,  GP  Strategies or ManTech in any Loan
Document or in any statement or certificate at any time given by such Person (or
any officer or cash manager) in writing  pursuant or in connection with any Loan
Document is false in any material respect on the date made or deemed made; or

          (E) Other Defaults Under Loan Documents. Any Loan Party, GP Strategies
or ManTech  defaults in the performance of or compliance with any term contained
in this  Agreement or the other Loan  Documents and such default is not remedied
or waived within twenty (20) days after  receipt by Borrower  Representative  of
notice from Lender of such default  (other than  occurrences  described in other
provisions of this  subsection 8.1 for which a different grace or cure period is
specified or which constitute immediate Events of Default); or

          (F) Change in Control.  GSE ceases to  beneficially  own and  control,
directly or  indirectly,  at least one hundred  percent (100%) of the issued and
outstanding  shares of each class of  capital  stock of each  Borrower  entitled
(without  regard to the occurrence of any  contingency) to vote for the election
of a  majority  of the  members of such  Borrower's  board of  directors;  or GP
Strategies shall at any time cease to beneficially own and control,  directly or
indirectly, at least the same percentage of the issued and outstanding shares of
each  class  of  capital  stock  of  Systems  entitled  (without  regard  to the
occurrence  of any  contingency)  to vote for the  election  of the  members  of
Systems'  board  of  directors  as it  does on the  closing  date,  except  such
percentage may reduce solely as a result of issuance of additional securities to
third parties by Systems; or

          (G) Involuntary Bankruptcy;  Appointment of Receiver, etc. (1) A court
enters  a decree  or order  for  relief  with  respect  to any  Loan  Party,  GP
Strategies or ManTech in an involuntary  case under any  applicable  bankruptcy,
insolvency  or other  similar law now or  hereafter  in effect,  which decree or
order is not stayed or other similar  relief is not granted under any applicable
federal or state law; or (2) the continuance of any of the following  events for
sixty (60) days unless dismissed,  bonded or discharged: (a) an involuntary case
is  commenced  against  any Loan  Party,  GP  Strategies  or  ManTech  under any
applicable  bankruptcy,  insolvency  or other  similar law now or  hereafter  in
effect;  or (b) a decree or order of a court for the  appointment of a receiver,
liquidator,  sequestrator,  trustee,  custodian or other officer  having similar
powers  over  any  Loan  Party,  GP  Strategies  or  ManTech  or  over  all or a
substantial part of their  respective  property,  is entered;  or (c) an interim
receiver,  trustee or other  custodian is  appointed  without the consent of any
Loan  Party,  GP  Strategies  or ManTech  for all or a  substantial  part of the
property of any Loan Party, GP Strategies or ManTech; or

          (H) Voluntary Bankruptcy;  Appointment of Receiver,  etc. (1) Any Loan
Party, GP Strategies or ManTech  commences a voluntary case under any applicable
bankruptcy,  insolvency  or other  similar law now or  hereafter  in effect,  or
consents  to the entry of an order for relief in an  involuntary  case or to the
conversion  of an  involuntary  case to a  voluntary  case under any such law or
consents to the  appointment of or taking  possession by a receiver,  trustee or
other custodian for all or a substantial  part of its property;  or (2) any Loan
Party,  GP  Strategies  or  ManTech  makes any  assignment  for the  benefit  of
creditors;  or (3) the board of directors or similar  Persons of any Loan Party,
GP Strategies or ManTech adopts any resolution or otherwise authorizes action to
approve any of the actions referred to in this subsection 8.1(H); or


          (I) Liens.  Any lien,  levy or  assessment  is filed or recorded  with
respect to or  otherwise  imposed  upon all or any part of (i) any assets of the
Loan  Parties  not  constituting  Collateral  and  having a value at any time in
excess of $125,000 in the aggregate or (ii) any  Collateral,  in any case by the
United  States,  any foreign  government or any  department  or  instrumentality
thereof or by any  state,  county,  municipality  or other  governmental  agency
(other than  Permitted  Encumbrances)  and such lien,  levy or assessment is not
stayed, vacated, paid or discharged within thirty (30) days; or

          (J) Judgment and Attachments.  Any money judgment,  writ or warrant of
attachment, or similar process involving (1) an amount in any individual case in
excess of  $100,000 or (2) an amount in the  aggregate  at any time in excess of
$200,000  (in either case not  adequately  covered by  insurance as to which the
insurance  company has  acknowledged  coverage) is entered or filed  against any
Loan Party or any of its assets and remains undischarged, unvacated, unbonded or
unstayed  for a period of thirty  (30) days or in any event  later than five (5)
days prior to the date of any proposed sale thereunder; or

          (K) Dissolution.  Any order, judgment or decree is entered against any
Loan Party,  GP Strategies or ManTech  decreeing the  dissolution or split up of
such Loan Party, GP Strategies or ManTech and such order remains undischarged or
unstayed for a period in excess of thirty (30) days; or

          (L) Solvency. Any Borrower, Guarantor, GP Strategies or ManTech ceases
to be solvent  (as  represented  in  subsection  4.16) or admits in writing  its
present or prospective inability to pay its debts as they become due; or

          (M) Injunction.  Any Loan Party is enjoined,  restrained or in any way
prevented by the order of any court or any  administrative  or regulatory agency
from  conducting  all or any  material  part  of its  business  and  such  order
continues  for more than  thirty  (30) days,  if any such event or  circumstance
could reasonably be expected to have a Material Adverse Effect; or

          (N) Invalidity of any Loan Documents. (1) Any of the Loan Documents or
EximBank  Documents  for any  reason,  other than a partial  or full  release in
accordance  with the terms thereof,  ceases to be in full force and effect or is
declared  to be null and void,  or any Loan  Party or Exim or GP  Strategies  or
ManTech denies that it has any further  liability  (except after payment in full
of all  amounts  payable  thereunder)  under  any  Loan  Documents  or  EximBank
Documents to which it is party, or gives notice to such effect; or
               (2) If either ManTech or GP Strategies  shall deliver to Lender a
notice of termination of the ManTech  Guarantee or the GP Strategies  Guarantee;
or
                    (3) If  EximBank  shall  not  agree to  renew,  on terms and
conditions  satisfactory to the Lender in its sole  discretion,  the guaranty by
EximBank  under the EximBank  Documents at least 30 days prior to any expiration
date of such guaranty; or

          (O)  Failure  of  Security.  Lender  does not have or ceases to have a
valid and  perfected  first  priority  security  interest  in any portion of the
Collateral  (other  than cash and other  monies in the  possession  or under the
control of a Person  other than Lender as to which  Lender is unable to obtain a
perfected  security  interest by any means under the Uniform  Commercial Code of
the  relevant   jurisdiction)  (subject  to  Permitted  Encumbrances  and  Liens
permitted  under Section  7.3(B)),  in each case,  for any reason other than the
failure of Lender to take any action within its control; or

          (P) Damage,  Strike,  Casualty. Any material damage to, or loss, theft
or  destruction  of, any  Collateral,  whether or not  insured,  or any  strike,
lockout, labor dispute,  embargo,  condemnation,  act of God or public enemy, or
other casualty which causes,  for more than sixty (60)  consecutive  days beyond
the coverage  period of any  applicable  business  interruption  insurance,  the
cessation or  substantial  curtailment  of revenue  producing  activities at any
facility of any Loan Party if any such event or circumstance could reasonably be
expected to have a Material Adverse Effect; or

          (Q) Licenses and Permits.  The loss,  suspension or revocation  of, or
failure to renew,  any license or permit now held or  hereafter  acquired by any
Loan  Party,  if such loss,  suspension,  revocation  or failure to renew  could
reasonably be expected to have a Material Adverse Effect; or

          (R)  Forfeiture.  There is filed against any Loan Party,  any civil or
criminal  action,  suit or  proceeding  under any federal or state  racketeering
statute  (including,  without limitation,  the Racketeer  Influenced and Corrupt
Organization Act of 1970), which action, suit or proceeding (1) is not dismissed
within one hundred  twenty (120) days;  and (2) could  reasonably be expected to
result  in the  confiscation  or  forfeiture  of  any  material  portion  of the
Collateral; or

          (S)  System   Activities.   Systems   shall  engage  in  any  business
activities,  other than  activities  solely related to ownership of the stock of
its  Subsidiaries,  Corporate  Overhead  activities,  and activities  related to
compliance with laws and regulations  applicable to Systems as a  publicly-owned
corporation; or

          (T) Inactive Subsidiaries'  Activities.  Any Inactive Subsidiary shall
hold any assets, incur any liabilities (other than corporate franchise taxes and
other similar charges incidental to the maintenance of its corporate  existence)
or engage in any business activity, unless, within ten (10) days after the first
to occur of any such activity,  such entity shall have executed and delivered to
Lender such  instruments  and  documents  as shall be  satisfactory  in form and
substance to Lender and as shall provide for such entity being a Guarantor under
this Agreement; or

          (U) Material Adverse Change. Since the Closing Date, any change in the
business,  assets,  liabilities,  financial condition,  results of operations or
business  prospects of any Loan Party shall have been  discovered  or shall have
occurred,  or any event shall have occurred or failed to occur,  that has had or
might have,  either alone or in conjunction with all other such changes,  events
and failures, a Materially Adverse Effect.


     8.2 Suspension of Commitments.  Upon the occurrence of any Default or Event
of  Default,  notwithstanding  any grace  period or right to cure,  Lender  may,
without  notice  or  demand,  immediately  cease  making  additional  Loans  and
providing  Lender  Letters of Credit  and the  Commitments  shall be  suspended;
provided  that, in the case of a Default,  if the subject  condition or event is
waived or cured  within any  applicable  grace or cure period,  the  Commitments
shall be reinstated.

     8.3 Acceleration.  Upon the occurrence of any Event of Default described in
the foregoing  subsections 8.1(G) or 8.1(H), all Obligations shall automatically
become  immediately  due and payable and the Borrowers  shall be immediately and
automatically  obligated  to deposit  with Lender the amount of cash  collateral
referred  to in clause (b) below,  in each case,  without  presentment,  demand,
protest or other  requirements  of any kind,  all of which are hereby  expressly
waived by all Borrowers and  Guarantors,  and the  Commitments  shall  thereupon
terminate.  Upon the occurrence and during the continuance of any other Event of
Default,  Lender may by written notice to Borrower  Representative,  (a) declare
all or any  portion  of the  Obligations  to be,  and the same  shall  forthwith
become,  immediately due and payable  without  presentment,  demand,  protest or
other  requirements of any kind, all of which are hereby expressly waived by all
Borrowers and Guarantors,  and the Commitments shall thereupon terminate and (b)
demand that  Borrowers  immediately  deposit with Lender cash  collateral  in an
amount  equal to one  hundred  five  percent  (105%)  of the  Letter  of  Credit
Liability  to secure all  Obligations  in respect of  payments  under the Lender
Letters of Credit and Risk  Participation  Agreements  when  required,  and such
amount shall become  immediately  due and payable without  presentment,  demand,
protest or other  requirements  of any kind,  all of which are hereby  expressly
waived by all Borrowers and Guarantors.


     8.4  Remedies.  If  any  Event  of  Default  shall  have  occurred  and  be
continuing, in addition to and not in limitation of any other rights or remedies
available  to Lender at law or in equity,  Lender may exercise in respect of the
Collateral,  in addition to all other rights and remedies provided for herein or
otherwise  available  to it, all the rights and  remedies of a secured  party on
default under the UCC (whether or not the UCC applies to the affected Collateral
but subject to the provisions of the UCC, except in the case of capital stock of
non-Domestic  Subsidiaries)  and may also (a) notify any or all  obligors on the
Accounts to make all payments directly to Lender;  (b) require the Borrowers and
Guarantors to, and the Borrowers and Guarantors  hereby agree that they will, at
their expense and upon request of Lender forthwith,  assemble all or part of the
Collateral  as directed by Lender and make it  available to Lender at a place to
be designated by Lender which is reasonably  convenient to Lender;  (c) withdraw
all cash in the  Blocked  Accounts  and  apply  such  monies in  payment  of the
Obligations  in the manner  provided in  subsection  8.7; (d) without  notice or
demand or legal process, enter upon any premises of the Borrowers and Guarantors
and  take  possession  of the  Collateral;  and (e)  without  notice  except  as
specified below,  sell the Collateral or any part thereof in one or more parcels
at public or private sale, at any of Lender's offices or elsewhere, at such time
or times,  for cash,  on credit or for  future  delivery,  and at such  price or
prices and upon such other terms as Lender may deem commercially reasonable. The
Borrowers  and  Guarantors  agree  that,  to the extent  notice of sale shall be
required by law, at least ten (10) days notice to Borrower Representative of the
time and place of any public sale or the time after which any private sale is to
be made shall constitute reasonable notification. At any sale of the Collateral,
if permitted by law,  Lender may bid (which bid may be, in whole or in part,  in
the form of cancellation of indebtedness)  for the purchase of the Collateral or
any portion thereof for the account of Lender.  Lender shall not be obligated to
make any sale of Collateral  regardless of notice of sale having been given. The
Borrowers and Guarantors shall remain liable for any deficiency with interest at
the Default  Rate.  Lender may  adjourn any public or private  sale from time to
time by announcement  at the time and place fixed  therefor,  and such sale may,
without  further  notice,  be made at the  time  and  place  to  which it was so
adjourned.  To the extent permitted by law, the Borrowers and Guarantors  hereby
specifically  waive all rights of redemption,  stay or appraisal which they have
or may have under any law now existing or hereafter enacted. Lender shall not be
required to proceed  against any Collateral  but may proceed  against any or all
the Borrowers and  Guarantors  directly  and/or GP Strategies and ManTech and/or
EximBank directly.

     8.5  Appointment of  Attorney-in-Fact.  Each Borrower and Guarantor  hereby
constitutes and appoints Lender as its  attorney-in-fact  with full authority in
its place and stead and in its name, the name of Lender or otherwise,  from time
to time in Lender's  discretion  while an Event of Default is continuing to take
any action and to execute  any  instrument  that  Lender may deem  necessary  or
advisable to accomplish the purposes of this Agreement,  including:  (a) to ask,
demand,  collect, sue for, recover,  compound,  receive and give acquittance and
receipts  for  moneys  due and to become  due under or in  respect of any of the
Collateral;  (b) to adjust,  settle or  compromise  the amount or payment of any
Account, or release wholly or partly any customer or obligor thereunder or allow
any credit or discount thereon; (c) to receive,  endorse, and collect any drafts
or other instruments, documents and chattel paper, in connection with clause (a)
above;  (d) to file any claims or take any action or institute  any  proceedings
that Lender may deem  necessary or desirable  for the  collection  of any of the
Collateral  or  otherwise to enforce the rights of Lender with respect to any of
the  Collateral;  and (e) to sign and endorse any  invoices,  freight or express
bills,   bills  of  lading,   storage  or   warehouse   receipts,   assignments,
verifications  and  notices in  connection  with  Accounts  and other  documents
relating to the  Collateral.  The  appointment of Lender as each  Borrower's and
Guarantor's attorney and Lender's rights and powers are coupled with an interest
and are irrevocable until payment in full and complete performance of all of the
Obligations.

     8.6  Limitation  on Duty of Lender with Respect to  Collateral.  Beyond the
safe custody  thereof,  Lender shall have no duty with respect to any Collateral
in its  possession  or control (or in the  possession or control of any agent or
bailee)  or with  respect to any income  thereon or the  preservation  of rights
against prior parties or any other rights  pertaining  thereto.  Lender shall be
deemed to have exercised  reasonable care in the custody and preservation of the
Collateral  in  its   possession  if  the   Collateral  is  accorded   treatment
substantially equal to that which Lender accords its own property.  Lender shall
not be liable or responsible for any loss or damage to any of the Collateral, or
for any diminution in the value thereof, by reason of the act or omission of any
warehouseman,  carrier,  forwarding agency,  consignee or other Lender or bailee
selected by Lender in good faith.


     8.7 Application of Proceeds. Upon the occurrence and during the continuance
of an Event of Default,  (a) the Borrowers and Guarantors  irrevocably waive the
right to direct the  application  of any and all  payments  at any time or times
thereafter  received by Lender from or on behalf of any  Borrower or  Guarantor,
and the Borrowers and Guarantors hereby irrevocably agree that Lender shall have
the continuing exclusive right, subject to Lender's agreements with EximBank, to
apply and to reapply  any and all  payments  received at any time or times after
the  occurrence and during the  continuance  of an Event of Default  against the
Obligations  in such  manner as Lender may deem  advisable  notwithstanding  any
previous  entry by Lender upon any books and records and (b) the proceeds of any
sale of, or other  realization  upon, all or any part of the Collateral shall be
applied:  first, to all fees, costs and expenses incurred by Lender with respect
to this Agreement,  the other Loan Documents or the Collateral;  second,  to all
fees due and owing to Lender;  third,  to accrued  and  unpaid  interest  on the
Obligations;  fourth, to the principal  amounts of the Obligations  outstanding;
and fifth, to any other indebtedness or obligations of any Borrower or Guarantor
owing to Lender.

     8.8 License of Intellectual  Property.  Each Borrower and Guarantor  hereby
assigns,  transfers and conveys to Lender  effective  upon the occurrence of any
Event of  Default  hereunder,  the  non-exclusive  right and  license to use all
Intellectual  Property owned or used by it together with any goodwill associated
therewith,  all to the  extent  necessary  to enable  Lender to  realize  on the
Collateral  and to  permit  Lender  and any  successor  or  assign  to enjoy the
benefits of the Collateral. This right and license shall inure to the benefit of
all successors,  assigns and  transferees of Lender and its successors,  assigns
and transferees,  whether by voluntary conveyance, operation of law, assignment,
transfer,  foreclosure, deed in lieu of foreclosure or otherwise. Such right and
license is granted free of charge, without requirement that any monetary payment
whatsoever be made to any Borrower or Guarantor by Lender.

     8.9 Waivers,  Non-Exclusive  Remedies.  No failure on the part of Lender to
exercise,  and no delay in exercising  and no course of dealing with respect to,
any right under this  Agreement or the other Loan  Documents  shall operate as a
waiver thereof;  nor shall any single or partial exercise by Lender of any right
under this  Agreement or any other Loan  Document  preclude any other or further
exercise  thereof  or the  exercise  of any  other  right.  The  rights  in this
Agreement and the other Loan  Documents are  cumulative and are not exclusive of
any other remedies provided by law.


                SECTION 9. ASSIGNMENT AND PARTICIPATION; SETOFF

     9.1 Assignments and Participations in Loans.

          (A) Lender may  assign all or any  portion of its rights and  delegate
all or any portion of its  obligations  under this Agreement in whole or in part
to another  Person  without  the  consent of any Loan  Party.  In the case of an
assignment authorized under this subsection 9.1, the assignee shall have, to the
extent of such assignment, the same rights, benefits and obligations as it would
if it were a Lender  hereunder and the assigning Lender shall be relieved of its
obligations  hereunder  with  respect  to its  Commitment  or  assigned  portion
thereof.  The Borrowers and  Guarantors  hereby  acknowledge  and agree that any
assignment will give rise to a direct  obligation of Borrowers and Guarantors to
the assignee and that the assignee shall be considered to be a "Lender".


          (B) Lender may sell participations in all or any part of any Loans and
other Obligations to another Person; provided, that any such participation shall
be in a minimum amount of $1,000,000,  and provided,  further,  that all amounts
payable by Borrowers  and  Guarantors  hereunder  shall be determined as if that
Lender had not sold such  participation.  The  Borrowers and  Guarantors  hereby
acknowledge  and  agree  that  any  participation  will  give  rise to a  direct
obligation of Borrowers and Guarantors to the  participant,  and the participant
under each  participation  shall for purposes of subsections  2.8, 2.9, 2.11 and
10.2 be considered to be a "Lender".

          (C)  Lender  may  furnish  any  information  concerning  Systems,  any
Borrower,  any other Guarantor and any of their  respective  Subsidiaries in the
possession of Lender from time to time to assignees and participants  (including
prospective assignees and participants).

          (D)  Notwithstanding  any other provision set forth in this Agreement,
Lender may at any time  create a security  interest in all or any portion of its
rights under this Agreement (including,  without limitation,  the Loans owing to
it and the Note held by it in favor of any Federal  Reserve  Bank in  accordance
with Regulation A of the Board of Governors of the Federal Reserve System).

     9.2 Set Off and  Sharing  of  Payments.  In  addition  to any rights now or
hereafter  granted under applicable law and not by way of limitation of any such
rights,  upon the occurrence and during the continuance of any Event of Default,
Lender is hereby authorized by Borrowers and Guarantors at any time or from time
to time,  without  notice to any Borrowers and Guarantors or to any other Person
to set off and to  appropriate  and to apply  any and all (A)  balances  held by
Lender or any Affiliate at any of its offices for the account of any Borrower or
Guarantor  (regardless of whether such balances are then due to such Borrower or
Guarantor),  and (B) other  property  at any time held or owing by Lender or any
Affiliate  to or for the credit or for the account of any  Borrower or Guarantor
against and on account of any of the Obligations which are not paid when due.


                           SECTION 10. MISCELLANEOUS


     10.1  Expenses  and  Attorneys'  Fees.  Whether  or  not  the  transactions
contemplated  hereby shall be  consummated,  Borrowers and  Guarantors  agree to
promptly pay all fees, costs and expenses  incurred by Lender in connection with
any matters  contemplated  by or arising out of this Agreement or the other Loan
Documents  including the following,  and all such fees, costs and expenses shall
be part of the Obligations, payable on demand and secured by the Collateral: (a)
fees, costs and expenses (including  reasonable attorneys' fees, allocated costs
of internal counsel and fees of environmental consultants, accountants and other
professionals  retained by Lender)  incurred in connection with the examination,
review, due diligence investigation,  documentation and closing of the financing
arrangements  evidenced  by the Loan  Documents;  (b) fees,  costs and  expenses
(including  reasonable  attorneys' fees, allocated costs of internal counsel and
fees of environmental consultants,  accountants and other professionals retained
by Lender)  incurred in connection  with the review,  negotiation,  preparation,
documentation,  execution and  administration of the Loan Documents,  the Loans,
the  Lender  Letters  of  Credit,   and  any  amendments,   waivers,   consents,
forbearances and other  modifications  relating thereto or any  subordination or
intercreditor  agreements;  (c) fees,  costs and expenses  incurred by Lender in
creating, perfecting and maintaining perfection of Liens in favor of Lender; (d)
fees,  costs and expenses  incurred by Lender in connection  with  forwarding to
Borrowers the proceeds of Loans including  Lender's standard wire transfer fees;
(e) fees, costs, expenses and bank charges,  including bank charges for returned
checks,  incurred by Lender in  establishing,  maintaining and handling lock box
accounts,  blocked  accounts or other accounts for collection of the Collateral;
(f) fees, costs,  expenses (including  reasonable  attorneys' fees and allocated
costs of  internal  counsel)  of Lender  and  costs of  settlement  incurred  in
collecting  upon or enforcing  rights  against the Collateral or incurred in any
action to enforce this  Agreement or the other Loan  Documents or to collect any
payments due from Borrowers or Guarantors under this Agreement or any other Loan
Document or incurred in connection with any refinancing or  restructuring of the
credit  arrangements  provided under this Agreement,  whether in the nature of a
"workout" or in connection with any insolvency or bankruptcy proceedings
or otherwise.

     10.2  Indemnity.  In  addition  to the  payment  of  expenses  pursuant  to
subsection 10.1,  whether or not the transactions  contemplated  hereby shall be
consummated,  each  Borrower  and  Guarantor  jointly  and  severally  agrees to
indemnify,  pay and hold  Lender  and any  holder of the Note and the  officers,
directors,  employees, agents, consultants,  auditors,  affiliates and attorneys
of, and  Persons  engaged by,  Lender  (collectively  called the  "Indemnitees")
harmless from and against any and all liabilities, obligations, losses, damages,
penalties,  actions, judgments, suits, claims, costs, expenses and disbursements
of any kind or  nature  whatsoever  (including  the fees  and  disbursements  of
counsel   for  such   Indemnitees   in   connection   with  any   investigative,
administrative or judicial  proceeding  commenced or threatened,  whether or not
such  Indemnitee  shall be  designated a party  thereto) that may be imposed on,
incurred by, or asserted against that  Indemnitee,  in any manner relating to or
arising out of this Agreement or the other Loan Documents,  the  consummation of
the transactions contemplated by this Agreement, the statements contained in the
commitment letters, if any, delivered by Lender,  Lender's agreement to make the
Loans hereunder,  the use or intended use of the proceeds of any of the Loans or
the Lender Letters of Credit or the exercise of any right or remedy hereunder or
under the other Loan Documents (the  "Indemnified  Liabilities");  provided that
the Borrowers and Guarantors shall have no obligation to an Indemnitee hereunder
with respect to  Indemnified  Liabilities  arising from the gross  negligence or
willful  misconduct  of that  Indemnitee  as  determined by a court of competent
jurisdiction.

     10.3 Amendments and Waivers.

          (A) Except as otherwise  provided herein, no amendment,  modification,
termination  or waiver of any provision of this  Agreement or any Loan Document,
or consent to any departure by any Loan Party  therefrom,  shall in any event be
effective unless the same shall be in writing and signed by Lender.

          (B) Each  amendment,  modification,  termination  or  waiver  shall be
effective only in the specific  instance and for the specific  purpose for which
it was given.

          (C) No  amendment,  modification  or  waiver of any  provision  of any
Lender Letter of Credit shall be applicable  without the written  concurrence of
the issuer of such Lender  Letter of Credit.  No notice to or demand on Systems,
any  Borrower or any other  Guarantor  in any case shall  entitle  Systems,  any
Borrower  or any other  Guarantor  to any other or  further  notice or demand in
similar or other circumstances.


          (D)  In  the  event  Lender  waives  (1)  any  Default  arising  under
subsection  8.1(E) as a result of the breach of any of the provisions of Section
5 of this  Agreement  (other than any such breach which  constitutes an Event of
Default)  or (2) any  Default  constituting  a  condition  to the funding of any
Revolving Advance or issuance of any Lender Letter of Credit,  such waiver shall
expire on the date upon which the  Default  which was the subject of such waiver
matures into an Event of Default pursuant to the terms of this Agreement.

     10.4 Notices.  Unless otherwise  specifically  provided herein, all notices
shall be in writing addressed to the respective party as set forth below and may
be personally served,  telecopied or sent by overnight courier service or United
States mail and shall be deemed to have been given:  (a) if delivered in person,
when  delivered;  (b) if delivered by telecopy,  on the date of  transmission if
transmitted on a Business Day before 4:00 p.m. New York City time or, if not, on
the next succeeding Business Day; (c) if delivered by overnight courier, two (2)
days after delivery to such courier properly addressed;  or (d) if by U.S. Mail,
four (4) Business Days after  depositing in the United States mail, with postage
prepaid and properly addressed.

     If to any Borrower or
     Guarantor :                         GSE SYSTEMS, INC.
                                         9189 Red Branch Road
                                         Columbia, MD 21045
                                         Attn:  Ben Rosenbaum, Esq.
                                         Telecopy No.:  410-772-3599

     With a copy to:                     GOLDEN & NELSON PLLC
                                         8285 High Globe Court
                                         Millersville, MD 21108
                                         Attn:  Hedy L. Nelson, Esq.
                                         Telecopy No.:  410-729-2246

     If to Lender:                       DIME COMMERCIAL CORP.
                                         1180 Avenue of the Americas
                                         New York, N.Y.  10036
                                         Attn:  Mr. James Fisher
                                         Telecopy No.:   212-382-8349

     With a copy to:                     CONNELL & WIENER LLP
                                         545 Fifth Avenue
                                         New York, NY  10017
                                         Attn:  Paul R. Wiener, Esq.
                                         Telecopy No.:  212-687-6999

or to such other address as the party addressed shall have previously designated
by written notice to the serving party, given in accordance with this subsection
10.4.


     10.5  Survival  of  Warranties  and  Certain  Agreements.  All  agreements,
representations  and  warranties  made herein shall  survive the  execution  and
delivery   of  this   Agreement   and  the   making  of  the  Loans   hereunder.
Notwithstanding  anything in this  Agreement or implied by law to the  contrary,
the agreements of Loan Parties set forth in subsections  2.8, 2.9, 10.1 and 10.2
shall  survive  the  payment  of the  Obligations  and the  termination  of this
Agreement.

     10.6 Indulgence Not Waiver.  No failure or delay on the part of Lender,  or
any  holder  of any  Note in the  exercise  of any  power,  right  or  privilege
hereunder  or  under  the Loan  Documents  shall  impair  such  power,  right or
privilege or be construed to be a waiver of any default or acquiescence therein,
nor shall any single or partial  exercise of any such power,  right or privilege
preclude  other or  further  exercise  thereof or of any other  right,  power or
privilege.

     10.7  Marshaling;  Payments  Set  Aside.  Lender  shall  not be  under  any
obligation  to marshal any assets in favor of any  Borrower or  Guarantor or any
other  party or against or in payment of any or all of the  Obligations.  To the
extent that any Borrower or  Guarantor  makes a payment or payments to Lender or
Lender  enforces  its security  interests or exercise its rights of setoff,  and
such  payment or payments or the proceeds of such  enforcement  or setoff or any
part  thereof  are  subsequently  invalidated,  declared  to  be  fraudulent  or
preferential,  set aside and/or required to be repaid to a trustee,  receiver or
any other party under any bankruptcy  law,  state or federal law,  common law or
equitable  cause,  then to the extent of such recovery,  the Obligations or part
thereof originally intended to be satisfied,  and all Liens, rights and remedies
therefor,  shall be revived  and  continued  in full force and effect as if such
payment had not been made or such enforcement or setoff had not occurred.

     10.8  Entire  Agreement.  This  Agreement,  the  Note  and the  other  Loan
Documents  referred  to herein  embody the  final,  entire  agreement  among the
parties  hereto  and  supersede  any  and  all  prior  commitments,  agreements,
representations  and  understandings,  whether written or oral,  relating to the
subject  matter  hereof and may not be  contradicted  or varied by  evidence  of
prior,  contemporaneous,  or subsequent  oral  agreements or  discussions of the
parties hereto. There are no oral agreements among the parties hereto.

     10.9  Independence  of Covenants.  All covenants  hereunder  shall be given
independent  effect so that if a particular action or condition is not permitted
by any of such  covenants,  the fact that it would be  permitted by an exception
to, or be otherwise  within the limitations of, another covenant shall not avoid
the  occurrence  of a Default or an Event of Default if such  action is taken or
condition exists.

     10.10 Severability.  The invalidity,  illegality or unenforceability in any
jurisdiction of any provision in or obligation under this Agreement or the other
Loan   Documents   shall  not  affect  or  impair  the  validity,   legality  or
enforceability of the remaining  provisions or obligations under this Agreement,
or the other Loan  Documents  or of such  provision or  obligation  in any other
jurisdiction.

     10.11 Headings.  Section and subsection  headings and the Table of Contents
in this  Agreement are included  herein for  convenience  of reference  only and
shall not  constitute a part of this Agreement for any other purpose or be given
any substantive effect.

     10.12  APPLICABLE  LAW. THIS  AGREEMENT  SHALL BE GOVERNED BY, AND SHALL BE
CONSTRUED AND ENFORCED IN ACCORDANCE WITH, THE INTERNAL LAWS OF THE STATE OF NEW
YORK, WITHOUT REGARD TO CONFLICTS OF LAWS PRINCIPLES.

     10.13  Successors  and Assigns.  This  Agreement  shall be binding upon and
inure to the benefit of the parties hereto and their  respective  successors and
assigns  except  that  no  Borrower  or  Guarantor  may  assign  its  rights  or
obligations hereunder without the prior written consent of Lender.

     10.14 No Fiduciary Relationship; Limitation of Liabilities.

          (A) No  provision  in  this  Agreement  or in any  of the  other  Loan
Documents and no course of dealing between the parties shall be deemed to create
any fiduciary duty by Lender to any Borrower or any other Loan Party.

          (B) Neither Lender nor any affiliate, officer, director,  shareholder,
employee, attorney, or agent of Lender shall have any liability with respect to,
and Systems,  Borrowers and Guarantors hereby waive,  release,  and agree not to
sue any of them  upon,  any  claim for any  special,  indirect,  incidental,  or
consequential  damages  suffered or incurred  by any of Systems,  Borrowers  and
Guarantors  in connection  with,  arising out of, or in any way related to, this
Agreement  or  any of  the  other  Loan  Documents,  or any of the  transactions
contemplated  by this  Agreement  or any of the other Loan  Documents.  Systems,
Borrowers and Guarantors hereby waive,  release,  and agree not to sue Lender or
any of Lender's affiliates, officers, directors, employees, attorneys, or agents
for punitive damages in respect of any claim in connection with, arising out of,
or in any way related to, this Agreement or any of the other Loan Documents,  or
any  of  the  transactions   contemplated  by  this  Agreement  or  any  of  the
transactions contemplated thereby.

     10.15  CONSENT TO  JURISDICTION.  EACH OF SYSTEMS,  THE  BORROWERS  AND THE
GUARANTORS  HEREBY  CONSENTS TO THE  JURISDICTION  OF ANY STATE OR FEDERAL COURT
LOCATED WITHIN THE BOROUGH OF MANHATTAN STATE OF NEW YORK AND IRREVOCABLY AGREES
THAT, UNLESS WAIVED BY LENDER IN WRITING, ALL ACTIONS OR PROCEEDINGS ARISING OUT
OF OR  RELATING  TO THIS  AGREEMENT,  THE  NOTE  OR THE  OTHER  LOAN  DOCUMENTS,
INCLUDING ALL CLAIMS AND ACTIONS AGAINST THE LENDER,  SHALL BE LITIGATED IN SUCH
COURTS. EACH OF SYSTEMS, THE BORROWERS AND THE GUARANTORS ACCEPTS FOR ITSELF AND
IN  CONNECTION  WITH  ITS  PROPERTIES,   GENERALLY  AND   UNCONDITIONALLY,   THE
NON-EXCLUSIVE  JURISDICTION  OF THE  AFORESAID  COURTS AND WAIVES ANY DEFENSE OF
FORUM  NON  CONVENIENS,  AND  IRREVOCABLY  AGREES  TO BE BOUND  BY ANY  JUDGMENT
RENDERED  THEREBY IN CONNECTION  WITH THIS  AGREEMENT,  THE NOTE, THE OTHER LOAN
DOCUMENTS OR THE OBLIGATIONS.


     10.16  WAIVER  OF  JURY  TRIAL.  EACH OF  SYSTEMS,  THE  BORROWERS  AND THE
GUARANTORS  AND LENDER  HEREBY WAIVES ITS RIGHTS TO A JURY TRIAL OF ANY CLAIM OR
CAUSE OF ACTION  BASED UPON OR ARISING  OUT OF THIS  AGREEMENT,  THE NOTE OR THE
OTHER LOAN  DOCUMENTS.  EACH OF SYSTEMS,  THE BORROWERS AND THE  GUARANTORS  AND
LENDER  ACKNOWLEDGE  THAT THIS WAIVER IS A MATERIAL  INDUCEMENT  TO ENTER INTO A
BUSINESS  RELATIONSHIP,  THAT EACH HAS ALREADY  RELIED ON THE WAIVER IN ENTERING
INTO THIS  AGREEMENT,  THE NOTE AND THE OTHER LOAN  DOCUMENTS AND THAT EACH WILL
CONTINUE  TO RELY ON THE  WAIVER  IN  THEIR  RELATED  FUTURE  DEALINGS.  EACH OF
SYSTEMS,  THE  BORROWERS  AND THE  GUARANTORS  AND LENDER  FURTHER  WARRANTS AND
REPRESENTS  THAT EACH HAS REVIEWED THIS WAIVER WITH ITS LEGAL COUNSEL,  AND THAT
EACH  KNOWINGLY  AND  VOLUNTARILY   WAIVES  ITS  JURY  TRIAL  RIGHTS   FOLLOWING
CONSULTATION WITH LEGAL COUNSEL.

     10.17 Construction. Each of Systems, the Borrowers and the other Guarantors
and Lender  acknowledges that it has had the benefit of legal counsel of its own
choice and has been  afforded an  opportunity  to review this  Agreement and the
other Loan  Documents  with its legal  counsel and that this  Agreement  and the
other  Loan  Documents  shall be  construed  as if  jointly  drafted  by each of
Systems, the Borrowers and the other Guarantors and Lender.

     10.18  Counterparts;  Effectiveness.  This  Agreement  and any  amendments,
waivers,  consents, or supplements may be executed in any number of counterparts
and by different parties hereto in separate counterparts,  each of which when so
executed  and  delivered  shall  be  deemed  an  original,   but  all  of  which
counterparts  together shall  constitute but one and the same  instrument.  This
Agreement shall become  effective upon the execution of a counterpart  hereof by
each of the parties hereto.  Delivery of an executed  counterpart of a signature
page to this Agreement, to any amendments,  waivers, consents or supplements, or
to any other Loan Document by telecopier  shall be as effective as delivery of a
manually executed counterpart thereof.

     10.19  No  Duty.  All  attorneys,   accountants,   appraisers,   and  other
professional  Persons and consultants retained by Lender shall have the right to
act  exclusively in the interest of Lender and shall have no duty of disclosure,
duty of loyalty, duty of care, or other duty or obligation of any type or nature
whatsoever to Systems,  any Borrower,  any of the other Loan Parties,  or any of
the Loan Parties' shareholders or any other Person.


     10.20  Year  2000.  (a)  Each of  Systems,  the  Borrowers  and  Guarantors
represents,  warrants and covenants that it (i) is aware of the risks associated
with the date  change  from  December  31,  1999 to January  1,  2000;  (ii) has
assessed  the  related  processing   capabilities  of  its  computer  and  other
Technology  Systems (as defined below);  (iii) is taking or has taken, and shall
continue to take,  if  necessary,  appropriate  steps to prepare its Systems for
Year 2000 capability,  i.e., to assure that its Technology  Systems will operate
in a manner such that on and after January 1, 2000 the  Technology  Systems will
correctly interpret and manipulate all dates, data,  information and records, so
as to avoid  errors in  processing  or failures to operate  properly  because of
their inability to recognize  accurately the year 2000 or subsequent  dates; and
(iv) is  taking  or has  taken,  and  shall  continue  to  take,  if  necessary,
appropriate  steps  to  verify  that  the  Technology  Systems  of its  material
customers,   clients,   suppliers  and  counterparties  are  able  to  meet  the
requirements  of the Year 2000 date change.  Each of Systems,  the Borrowers and
Guarantors  further  represents,  warrants  and  covenants  that its  Technology
Systems shall have Year 2000  capability by June 30, 1999. The term  "Technology
Systems" as used in this Section shall mean all (i) computer hardware,  computer
software,  and  data  processing  systems;  (ii)  HVAC  and  other  building  or
facilities systems and equipment containing embedded microchips; and (iii) other
information technology-based systems, that, in the case of each of (i), (ii) and
(iii),  are material to the business  operations  or financial  condition of the
Systems, any Borrower or any other Loan Party.

     (b) Each of Systems,  the  Borrowers  and  Guarantors  agrees that,  at the
Lender's request,  it will provide the Lender with written  documentation of its
efforts  and  progress  with  respect to the matters  referred to in  subsection
10.21(a)  above and will also provide the Lender with  written  assurance of its
Year 2000 Technology Systems capability.


                             SECTION 11. GUARANTIES

     11.1 Guaranty.  Each Guarantor hereby jointly and severally  absolutely and
unconditionally  guaranties  to  Lender  the  full  and  prompt  payment  of all
Obligations  owed or hereafter  owing to Lender by each Borrower.  Each Borrower
hereby absolutely and  unconditionally  guarantees to Lender the full and prompt
payment  of all  Obligations  owed or  hereafter  owing to Lender by each  other
Borrower.  Notwithstanding any provision herein contained to the contrary,  each
Guarantor's and each Borrower's liability under this Section 11 (which liability
of each  Borrower is in any event in addition to amounts for which such Borrower
is primarily  liable under the other  Sections of this  Agreement  and the other
Loan  Documents)  shall be  limited to an amount not to exceed as of any date of
determination the greater of:

          (A) in the case of each Borrower and each Guarantor, the net amount of
all Loans advanced to any other Borrower under this Agreement and then re-loaned
or otherwise transferred to such Borrower or Guarantor; or

          (B) in the case of each Borrower and each Guarantor,  the amount which
could be claimed by Lender from such Borrower or Guarantor under this Section 11
without  rendering such claim voidable or avoidable under Section 548 of Chapter
11 of the  Bankruptcy  Code or under any  applicable  state  Uniform  Fraudulent
Transfer Act, Uniform Fraudulent Conveyance Act or similar statute or common law
after taking into account,  among other things,  such  Borrower's or Guarantor's
right  of  contribution  and  indemnification   from  the  other  Borrowers  and
Guarantors under subsection 11.2 hereof.

Until all  Obligations  have been paid in full, this guaranty is and is intended
to be a  continuing,  unconditional  guaranty  of  payment  of the  Obligations,
independent of and in addition to any other guaranty, endorsement, collateral or
other  agreement  now or  hereafter  held by  Lender  therefor  or with  respect
thereto, whether or not furnished by Borrowers and/or any Guarantor.

     11.2 Contribution with Respect to Guaranty Obligations.


          (A) To the extent that any Borrower or Guarantor  shall make a payment
under this Section 11 of all or any of the  Obligations  for which such Borrower
or Guarantor is not primarily liable (a "Guarantor  Payment") which, taking into
account all other Guarantor Payments then previously or concurrently made by the
other  Borrower  and  Guarantors,  exceeds  the amount  which such  Borrower  or
Guarantor  would otherwise have paid if each Borrower and Guarantor had paid the
aggregate Obligations satisfied by such Guarantor Payment in the same proportion
that such  Borrower's or Guarantor's  "Allocable  Amount" (as defined below) (in
effect  immediately  prior  to such  Guarantor  Payment)  bore to the  aggregate
Allocable Amounts of all Borrowers and Guarantors in effect immediately prior to
the making of such  Guarantor  Payment,  then such Borrower shall be entitled to
received  contribution and indemnification  payments from, and be reimbursed by,
each of the other Borrower and the Guarantors for the amount of such excess, pro
rata based upon their respective  Allocable Amounts in effect  immediately prior
to such Guarantor Payment.

          (B) As of any date of  determination,  the  "Allocable  Amount" of any
Borrower or  Guarantor  shall be equal to the maximum  amount of the claim which
could then be recovered from such Borrower or Guarantor under this subsection 11
without  rendering such claim voidable or avoidable under Section 548 of Chapter
11 of the  Bankruptcy  Code or under any  applicable  state  Uniform  Fraudulent
Transfer Act,  Uniform  Fraudulent  Conveyance Act or similar  statute or common
law.

          (C) This  subsection  11.2 is  intended  only to define  the  relative
rights of Borrowers  and  Guarantors  between them and nothing set forth in this
subsection  11.2 is intended to or shall impair the obligations of Borrowers and
Guarantors,  jointly and severally, to Lender to pay any amounts as and when the
same  shall  become  due and  payable  in  accordance  with  the  terms  of this
Agreement,   including,  without  limitation,  Section  2  hereof,  and  nothing
contained in this  subsection  11.2 shall limit the liability of any Borrower to
pay the  Obligations  for which it is  primarily  liable or of any  Borrower  or
Guarantor to pay its obligations under this Section 11.  Accordingly,  the right
of any  Borrower or Guarantor to receive any  contribution  and  indemnification
payment from, or to be reimbursed by, any other Borrower or Guarantor under this
Section 11 shall be unsecured and subordinated in right of payment to such other
Borrower's  or  Guarantor's   indebtedness  and  liability  in  respect  of  the
Obligations and obligations under this Section 11.

          (D) The parties hereto acknowledge that the rights of contribution and
indemnification  hereunder shall constitute  assets of any Borrower or Guarantor
to which such contribution and indemnification is owing.


     11.3  Obligations  Absolute.  The  liability  of each  Guarantor  and  each
Borrower to Lender under this Section 11 shall be absolute and unconditional and
shall not be affected or impaired by any of the  following  acts by Lender:  (i)
any  acceptance of collateral  security,  guarantors,  accommodation  parties or
sureties for any or all Obligations;  (ii) one or more extensions or renewals of
any  Obligations  (whether  or not for longer than the  original  period) or any
modification of the interest rates, fees,  maturities or principal amount of, or
other  contractual  terms  applicable to, any  Obligations;  (iii) any waiver or
indulgence granted to any Borrower or any other Loan Party, any delay or lack of
diligence  in the  enforcement  of  Obligations,  or any  failure  to  institute
proceedings,  file a claim,  give any required notices or otherwise  protect any
Obligations; (iv) any full or partial release of, compromise or settlement with,
or agreement  not to sue any Borrower or any other Loan Party,  or any guarantor
or other person liable in respect of any Obligations;  (v) the acceptance of any
instrument in renewal or  substitution  of any  Obligation;  (vi) any failure to
obtain collateral security (including rights of setoff) for any Obligations,  or
to obtain or maintain the proper or sufficient  creation and perfection thereof,
or to establish the priority thereof, or to preserve, protect, insure, care for,
exercise or enforce any collateral  security;  or any modification,  alteration,
substitution,  exchange, surrender, cancellation,  termination, release or other
change,  impairment,  limitation,  loss or discharge of any collateral security;
(vii)  any  assignment,  pledge  or other  transfer  of any  Obligations  or any
evidence  thereof;  or (viii) any manner,  order or method of application of any
payments or credits upon  Obligations.  Each Guarantor and each Borrower  hereby
waives any and all defenses and discharges available to a surety,  guarantor, or
accommodation co-obligor,  other than payment in full in cash of the Obligations
and termination of the Commitment pursuant thereto.

     11.4 WAIVER.  EACH GUARANTOR AND EACH BORROWER  HEREBY WAIVES  PRESENTMENT,
DEMAND  FOR  PAYMENT,  NOTICE OF  DISHONOR  OR  NONPAYMENT,  AND  PROTEST OF ANY
INSTRUMENT EVIDENCING LIABILITIES.

     11.5 Recovery.  If any payment is applied by Lender to the  Obligations and
is hereafter set aside, recovered,  rescinded or required to be returned for any
reason   (including,   without   limitation,   the  bankruptcy,   insolvency  or
reorganization  of any Borrower or any other obligor),  the Obligations to which
such payment was applied  shall for the purposes of this Section 11 be deemed to
have continued in existence or shall be reinstated, notwithstanding such payment
and  application  and this  guaranty by the  Borrowers  and  Guarantors  in this
Section  11  shall be  enforceable  as to such  Obligations  as fully as if such
payment and application had never been made.

     11.6  Liability  Cumulative.  The liability of the Guarantors and Borrowers
under  this  Section  11 is in  addition  to and  shall be  cumulative  with all
liabilities  of each  Guarantor and each Borrower to Lender under this Agreement
and the other Loan  Documents to which any such Borrower or Guarantor is a party
or in respect of any  Obligations of the other  Borrower or Guarantors,  without
any limitation as to amount,  unless the  instrument or agreement  evidencing or
creating such other liability specifically provides to the contrary.


                            [SIGNATURE PAGE FOLLOWS]


     WITNESS  the  due  execution  of  this  Agreement  by the  respective  duly
authorized officers of the undersigned as of the date first written above.

Systems:                                    GSE SYSTEMS, INC.


                                            By:
                                               ---------------------------------
Borrowers:                                  GSE POWER SYSTEMS, INC.


                                            By:
                                               ---------------------------------


                                            GSE PROCESS SOLUTIONS, INC.


                                            By:
                                               ---------------------------------

Other
Guarantors:                                 MSHI, INC.



                                            By:
                                               ---------------------------------

                                            GP INTERNATIONAL ENGINEERING &
                                            SIMULATION, INC.


                                            By:
                                               ---------------------------------

                                            DIME COMMERCIAL CORP.


                                            By:
                                               ---------------------------------

                                            Title:
                                                  ------------------------------


                                            Revolving Loan Commitment:

                                            $9,000,000
                                            ----------
                       [Signature page to Loan Agreement]

STATE OF NEW YORK )
                  )  SS
COUNTY OF NEW YORK )

     I, Paul R. Wiener,  a Notary  Public in and for said  County,  in the State
aforesaid, DO HEREBY CERTIFY that _______________,  personally known to me to be
the  _________________  of Dime  Commercial  Corp.,  the person who executed the
foregoing  instrument,  who being by me duly sworn, did depose and say he is the
officer  of such  corporation  described  in and which  executed  the  foregoing
instrument;  that said  instrument  is signed on behalf of such  corporation  by
order of its Board of Directors;  and that he acknowledged said instrument to be
the free act and deed of such corporation.

       GIVEN under my hand and notarial seal this 4th day of June, 1999.



                                     ___________________________________________
                                                     Notary Public

                                     My commission expires:

                                     ___________________________________________



STATE OF NEW YORK )
                  )  SS
COUNTY OF NEW YORK )

     I, Paul R. Wiener,  a Notary  Public in and for said  County,  in the State
aforesaid,  DO HEREBY  CERTIFY  that______________________________  , personally
known to me to be a ____________________  of each of the person who executed the
foregoing instrument,  who being by me duly sworn, did depose and say he is a of
each such corporation  described in and which executed the foregoing instrument;
that said  instrument is signed on behalf of each such  corporation  by order of
its respective Board of Directors;  and that he acknowledged  said instrument to
be the free act and deed of each such corporation.

       GIVEN under my hand and notarial seal this 4th day of June, 1999.


                                     ___________________________________________
                                                    Notary Public

                                     My commission expires:

                                     ___________________________________________

    All following  exhibits and  schedules  are  available  upon request and are
    filed in hard copy with the SEC.

                                    EXHIBITS

     A.       Borrowing Base Certificate
     B.       Compliance Certificate
     C.       Reconciliation Report
     D.       Notice of Borrowing

                                   SCHEDULES

     1.1(A)            Other Liens
     1.1(B)            Pro Forma
     2.15              Government Accounts
     3.1(A)            List of Closing Documents
     4.1(B)            Capitalization of Loan Parties, etc.
     4.2               Consents
     4.4               Other Indebtedness
     4.6               Trade Names (Present and Past Five Years)
     4.7               Location of Principal Place of Business, Books and
                         Records and Collateral; FEIN
     4.9               Litigation
     4.10              Audits
     4.13              Intellectual Property
     4.20              Bank Accounts
     4.22              Employee Matters
     4.24              Leases with a term exceeding 5 years



                                                                         ANNEX B


                    EXPORT-IMPORT BANK OF THE UNITED STATES
                       WORKING CAPITAL GUARANTEE PROGRAM

                               BORROWER AGREEMENT


     THIS BORROWER  AGREEMENT (this "Agreement") is made and entered into by the
entity  identified as the Borrower on the signature page hereof (the "Borrower")
and is acknowledged by the institution identified as the Lender on the signature
page hereof (the "Lender").

                                    RECITALS

     A. The  Lender  shall  make a loan (the  "Loan")  to the  Borrower  for the
purpose of providing the Borrower with pre-export working capital to finance the
manufacture,  production or purchase and subsequent export sale of the Items (as
hereinafter defined).

     B. The Loan  shall be in a  principal  amount  (the "Loan  Amount")  not to
exceed at any time  outstanding  the amount  specified in Section  (5)(A) of the
Loan  Authorization  Agreement between the Lender and the Export-Import  Bank of
the United States  ("Eximbank") which is attached hereto as Annex A1 or Annex A2
and incorporated  herein as a part of this Agreement.  If the Loan is being made
pursuant to the Lender's  Delegated  Authority  from  Eximbank,  all  references
herein  to the Loan  Authorization  Agreement  shall be deemed to be to the Loan
Authorization Notice provided to Eximbank and the Borrower by the Lender.

     C. The Loan shall be evidenced by a valid and  enforceable  promissory note
payable by the  Borrower  to the order of the Lender  (the  "Note") and shall be
made pursuant to a written agreement related solely thereto between the Borrower
and the Lender (the "Loan Agreement").

     D. A  condition  precedent  to the making of the Loan by the Lender is that
Eximbank  guarantee  the payment of ninety  percent (90%) of the Loan Amount and
all interest  accrued  thereon,  subject to the terms and conditions of a master
guarantee agreement (the "Master Guarantee  Agreement") between Eximbank and the
Lender.

     E. In consideration for and as a condition precedent to the Lender's making
the Loan and  Eximbank's  entering  into the  Master  Guarantee  Agreement,  the
Borrower  shall  execute  this  Agreement  for the  benefit  of the  Lender  and
Eximbank.

          NOW, THEREFORE, the Borrower hereby agrees as follows:





                                    ARTICLE I
                                   DEFINITIONS

     "Accounts  Receivable" shall mean those trade accounts from the sale of the
Items due and  payable  to the  Borrower  in the  United  States  and any notes,
drafts, letters of credit or insurance proceeds supporting payment thereof.

     "Availability Date" shall mean the last date on which the Lender may make a
Disbursement  as set forth in Section (10) of the Loan  Authorization  Agreement
or, if such date is not a Business Day, the next Business Day thereafter.

     "Borrowing  Base"  shall mean the  Collateral  Value as  discounted  by the
applicable Disbursement Rate(s).

     "Borrowing Base Certificate" shall mean the certificate in form provided by
the Lender  and  executed  by the  Borrower  setting  forth the  Borrowing  Base
supporting one or more Disbursements.

     "Business Day" shall mean any day on which the Federal  Reserve Bank of New
York is open for business.

     "Buyer"  shall mean an entity  which has  entered  into one or more  Export
Orders with the Borrower.

     "Closing Date" shall mean the date on which the Loan Documents are executed
by the Borrower.

     "Collateral"  shall mean the property of the Borrower in which the Borrower
has granted to the Lender a valid and enforceable  security interest as security
for the payment of all principal  and interest due under the Loan,  and which is
identified  in Section (6) of the Loan  Authorization  Agreement,  including all
proceeds (cash and non-cash) thereof.

     "Collateral Value" shall mean at any given time the value of all Collateral
against which  Disbursements  may be made as set forth in Section  (5)(C) of the
Loan Authorization Agreement, valued according to GAAP.

     "Country Limitation Schedule" shall mean the most recent schedule published
by Eximbank  and  provided to the  Borrower by the Lender  which sets forth on a
country by country basis whether and under what conditions Eximbank will provide
coverage for the financing of export transactions to countries listed therein.




     "Debarment Regulations" shall have the meaning set forth in Section 2.16.

     "Disbursed  Amount"  shall  mean the  aggregate  outstanding  amount of the
Disbursements.

     "Disbursement"  shall  mean an  advance  of the Loan from the Lender to the
Borrower under the Loan Agreement.

     "Disbursement  Rate" shall mean the rate specified in Section (5)(C) of the
Loan Authorization Agreement for each category of Collateral.

     "Dollars"  or "$"  shall  mean the  lawful  money of the  United  States of
America.

     "Export  Order"  shall  mean a written  export  order or  contract  for the
purchase by the Buyer from the Borrower of any of the Items.

     "GAAP" shall mean the generally  accepted  accounting  principles issued by
the American Institute of Certified Public Accountants.

     "Guarantor" shall mean each person or entity, if any, identified in Section
(3) of the  Loan  Authorization  Agreement  who  shall  guarantee  (jointly  and
severally  if more  than one) the  Borrower's  obligation  to repay all  amounts
outstanding under the Note.

     "Inventory"  shall mean the raw  materials,  work-in-process  and  finished
goods  purchased or  manufactured  by the Borrower for resale and located in the
United States.

     "Items"  shall mean the finished  goods or services  which are intended for
export, as specified in Section (4)(A) of the Loan Authorization Agreement.

     "Letter of Credit" shall mean an  irrevocable  letter of credit  subject to
UCP 500,  payable in the United States or at the issuing bank and issued for the
benefit of the Borrower on behalf of a Buyer in connection  with the purchase of
the Items.

     "Loan  Documents"  shall mean the Note, the Loan Agreement,  this Agreement
and any other instrument,  agreement or document  previously,  simultaneously or
hereafter  executed by the  Borrower  or any  Guarantors  evidencing,  securing,
guaranteeing or in connection with the Loan.

     "Principals" shall have the meaning set forth in Section 2.16.

     "Revolving Loan" shall mean a Loan under which amounts disbursed and repaid
may be disbursed on a continuous basis during the term of the Loan.

     "Transaction Specific Loan" shall mean a Loan under which amounts disbursed
and repaid may not be disbursed again.

     "U.S." or "United  States"  shall mean the United States of America and its
territorial possessions.

     "U.S. Content" shall mean with respect to any Item all the labor, materials
and services which are of U.S. origin or manufacture, and which are incorporated
into an Item in the United States.


                                   ARTICLE II
                           OBLIGATIONS OF THE BORROWER

     Until payment in full of the Loan, the Borrower agrees to the following:

     Section 2.1 Use of Disbursements. The Borrower shall use Disbursements only
for the purpose of enabling the  Borrower to finance the cost of  manufacturing,
producing,   purchasing  or  selling  the  Items.   The  Borrower  may  not  use
Disbursements   for  the  purpose  of:  (a)  servicing  any  of  the  Borrower's
pre-existing or future  indebtedness  unrelated to the Loan; (b) acquiring fixed
assets or  capital  goods for use in the  Borrower's  business;  (c)  acquiring,
equipping or renting  commercial space outside of the United States;  (d) paying
the  salaries of  non-U.S.  citizens or  non-U.S.  permanent  residents  who are
located in offices  outside the United States;  or (e) serving as a retainage or
warranty bond.

     In  addition,  Disbursements  may not be used to finance  the  manufacture,
purchase or sale of any of the following:

     (a) Items to be sold to a Buyer  located in a country in which  Eximbank is
legally  prohibited from doing business as designated in the Country  Limitation
Schedule;

     (b) that part of the cost of the  Items  which is not U.S.  Content  unless
such part is not greater than fifty  percent  (50%) of the cost of the Items and
is incorporated into the Items in the United States;

     (c) defense articles or defense services; or

     (d) without  Eximbank's prior written consent,  any Items to be used in the
construction, alteration, operation or maintenance of nuclear power, enrichment,
reprocessing, research or heavy water production facilities.

     Section 2.2 Borrowing  Base  Certificates  and Export  Orders.  In order to
receive a Disbursement  under the Loan, the Borrower shall deliver to the Lender
a Borrowing Base Certificate  current within the past five (5) Business Days and
a copy of the Export  Order(s)  (or, for  Revolving  Loans,  if permitted by the
Lender,  a written  summary of the Export Orders)  against which the Borrower is
requesting a Disbursement. If the Lender permits summaries of Export Orders, the
Borrower  shall also deliver  promptly to the Lender copies of any Export Orders
requested by the Lender. Additionally,  the Borrower shall deliver to the Lender
at least once every  thirty  (30)  calendar  days a Borrowing  Base  Certificate
current  within  the past  five (5)  Business  Days,  which  requirement  may be
satisfied  by  submission  of a Borrowing  Base  Certificate  when  requesting a
Disbursement.

     Section 2.3 Exclusions  from the Borrowing  Base. In determining the amount
of a requested Disbursement,  the Borrower shall exclude from the Borrowing Base
the following:

     (a) any Inventory which is not located in the United States;

     (b) any demonstration Inventory or Inventory sold on consignment;

     (c) any Inventory consisting of proprietary software;

     (d) any Inventory which is damaged, obsolete, returned, defective, recalled
or unfit for further processing;

     (e) any  Inventory  which  has been  previously  exported  from the  United
States;

     (f) any Inventory which constitutes defense articles or defense services or
any Accounts Receivable generated by sales of such Inventory;

     (g) any  Inventory  which is to be  incorporated  into Items  destined  for
shipment  to, and any Account  Receivable  in the name of a Buyer  located in, a
country  in  which  Eximbank  is  legally  prohibited  from  doing  business  as
designated in the Country Limitation Schedule;

     (h) any  Inventory  which is to be  incorporated  into Items  destined  for
shipment  to, and any Account  Receivable  in the name of a Buyer  located in, a
country in which Eximbank  coverage is not available for  commercial  reasons as
designated  in the Country  Limitation  Schedule,  unless and only to the extent
that such  Items are to be sold to such  country  on terms of a Letter of Credit
confirmed by a bank acceptable to Eximbank;

     (i) any Inventory which is to be  incorporated  into Items whose sale would
result in an ineligible Account Receivable;

     (j) any Account  Receivable with a term in excess of net one hundred eighty
(180) days;

     (k) any Account Receivable which is more than sixty (60) calendar days past
the original  due date,  unless it is insured  through  Eximbank  export  credit
insurance for  comprehensive  commercial and political risk, or through Eximbank
approved  private  insurers for comparable  coverage,  in which case ninety (90)
calendar days shall apply;

     (l) any intra-company  Account  Receivable or any Account Receivable from a
subsidiary of the Borrower,  from a person or entity with a controlling interest
in the Borrower or from an entity which shares common controlling ownership with
the Borrower;

     (m) any Account Receivable  evidenced by a Letter of Credit, until the date
of shipment of the Items covered by the subject Letter of Credit;

     (n) any Account Receivable which the Lender or Eximbank,  in its reasonable
judgment, deems uncollectible for any reason;

     (o) any Account Receivable payable in a currency other than Dollars, except
as may be approved in writing by Eximbank;

     (p) any Account Receivable from a military Buyer, except as may be approved
in writing by Eximbank; and

     (q) any Account  Receivable due and collectible  outside the United States,
except as may be approved in writing by Eximbank.

     Section 2.4  Schedules,  Reports and Other  Statements.  The Borrower shall
submit to the Lender in writing  each month (a) an  Inventory  schedule  for the
preceding  month and (b) an Accounts  Receivable  aging report for the preceding
month detailing the terms of the amounts due from each Buyer. The Borrower shall
also furnish to the Lender  promptly  upon request  such  information,  reports,
contracts,  invoices and other data  concerning the Collateral as the Lender may
from time to time specify.

     Section 2.5 Additional Security or Payment. The Borrower shall at all times
ensure that the Borrowing Base exceeds the Disbursed  Amount. If informed by the
Lender or if the Borrower otherwise has actual knowledge that the Borrowing Base
is at any time less than the Disbursed Amount,  the Borrower shall,  within five
(5) Business Days, either (a) furnish additional security to the Lender, in form
and amount satisfactory to the Lender and Eximbank,  or (b) pay to the Lender an
amount equal to the  difference  between the Disbursed  Amount and the Borrowing
Base.

     Section 2.6  Continued  Security  Interest.  The Borrower  shall notify the
Lender in writing within five (5) Business Days if (a) the Borrower  changes its
name or identity in any manner,  (b) the  Borrower  changes the  location of its
principal place of business,  (c) the nature of any of the Collateral is changed
or any of the Collateral is  transferred  to another  location or (d) any of the
books or records related to the Collateral are transferred to another  location.
The  Borrower  shall  execute  such  additional  financing  statements  or other
documents  as the  Lender  may  reasonably  request  in  order to  maintain  its
perfected security interest in the Collateral.

     Section  2.7  Inspection  of  Collateral.  The  Borrower  shall  permit the
representatives  of the Lender and  Eximbank to make at any time  during  normal
business  hours  reasonable  inspections of the Collateral and of the Borrower's
facilities,  activities, and books and records, and shall cause its officers and
employees to give full cooperation and assistance in connection therewith.

     Section 2.8 Notice of Debtor's  Relief,  Dissolution  and  Litigation.  The
Borrower shall notify the Lender in writing within five (5) Business Days of the
occurrence of any of the following:

     (a) a proceeding in  bankruptcy  or an action for debtor's  relief is filed
by, against, or on behalf of the Borrower;

     (b) the Borrower fails to obtain the dismissal or termination within thirty
(30) calendar days of the  commencement  of any proceeding or action referred to
in (a) above;

     (c) the Borrower  begins any procedure for its  dissolution or liquidation,
or a procedure therefore has been commenced against it; or

     (d) any material litigation is filed against the Borrower.

     Section 2.9 Insurance.  The Borrower shall maintain  insurance  coverage in
the manner and to the extent customary in businesses of similar character.

     Section 2.10 Merger or Consolidation.  Without the prior written consent of
Eximbank and the Lender,  the Borrower shall not (a) merge or  consolidate  with
any  other  entity,  (b) sell,  lease,  transfer  or  otherwise  dispose  of any
substantial part of its assets, or any part of its assets which are essential to
the conduct of its business or operations,  (c) make any material  change in its
organizational  structure or identity, or (d) enter into any agreement to do any
of the foregoing.

     Section  2.11  Reborrowings  and  Repayment  Terms.  (a) If the  Loan  is a
Revolving  Loan,  provided  that the Borrower is not in default under any of the
Loan Documents,  the Borrower may borrow,  repay and reborrow  amounts under the
Loan until the close of business on the Availability  Date. Unless the Revolving
Loan is renewed or extended by the Lender,  the  Borrower  shall pay in full the
outstanding  Loan Amount and all accrued  and unpaid  interest  thereon no later
than the first Business Day after the Availability Date.

     (b) If the Loan is a Transaction  Specific Loan, the Borrower shall, within
two (2) Business Days of the receipt thereof, pay to the Lender (for application
against the outstanding Loan Amount and accrued and unpaid interest thereon) all
checks,  drafts,  cash and other  remittances  it may  receive  in payment or on
account of the Accounts  Receivable  or any other  Collateral,  in precisely the
form received  (except for the  endorsement  of the Borrower  where  necessary).
Pending such deposit, the Borrower shall not commingle any such items of payment
with any of its other funds or property, but will hold them separate and apart.

     Section 2.12 Cross  Default.  The Borrower shall be deemed in default under
the Loan if the Borrower  fails to pay when due any amount payable to the Lender
under any loan to the Borrower not guaranteed by Eximbank.

     Section 2.13 Financial  Statements.  The Borrower  shall provide  quarterly
financial  statements to the Lender no later than forty-five (45) days after the
end of each quarter.  This is in addition to any other financial statements that
may be required by the Lender under the Loan Agreement.

     Section 2.14 Taxes,  Judgments and Liens. The Borrower shall remain current
on all of its  federal,  state and  local  tax  obligations.  In  addition,  the
Borrower  shall  notify the  Lender in the event (i) any  judgment  is  rendered
against the Borrower, or (ii) any lien is filed against any of the assets of the
Borrower.

     Section 2.15 Munitions List. If any of the Items are articles, services, or
related technical data that are listed on the United States Munitions List (part
121 of title 22 of the Code of Federal  Regulations),  the Borrower shall send a
written  notice   promptly  to  the  Lender   describing  the  Item(s)  and  the
corresponding invoice amount.

     Section 2.16  Suspension and Debarment,  etc. On the date of this Agreement
neither the Borrower nor its  Principals  (as defined  below) are (A)  debarred,
suspended,  proposed for debarment  with a final  determination  still  pending,
declared ineligible or voluntarily excluded (as such terms are defined under any
of  the  Debarment   Regulations   referred  to  below)  from  participating  in
procurement  or  nonprocurement  transactions  with any  United  States  federal
government department or agency pursuant to any of the Debarment Regulations (as
defined  below) or (B)  indicted,  convicted  or had a civil  judgment  rendered
against the Borrower or any of its Principals for any of the offenses  listed in
any of the Debarment  Regulations.  Unless authorized by Eximbank,  the Borrower
will not knowingly enter into any transactions in connection with the Items with
any  person who is  debarred,  suspended,  declared  ineligible  or  voluntarily
excluded from  participation in procurement or nonprocurement  transactions with
any United States federal government department or agency pursuant to any of the
Debarment Regulations. The Borrower will provide immediate written notice to the
Lender if at any time it learns that the certification set forth in this Section
2.16 was  erroneous  when made or has  become  erroneous  by  reason of  changed
circumstances. For the purposes hereof, (1) "Principals" shall mean any officer,
director,  owner, partner, key employee, or other person with primary management
or  supervisory  responsibilities  with  respect to the  Borrower;  or any other
person (whether or not an employee) who has critical influence on or substantive
control over the  transaction  covered by this  Agreement  and (2) the Debarment
Regulations  shall  mean  (x)  the   Governmentwide   Debarment  and  Suspension
(Nonprocurement)  regulations  (Common Rule), 53 Fed. Reg. 19204 (May 26, 1988),
(y)  Subpart  9.4  (Debarment,  Suspension,  and  Ineligibility)  of the Federal
Acquisition   Regulations,   48   C.F.R.   9.400-9.409   and  (z)  the   revised
Governmentwide  Debarment and Suspension  (Nonprocurement)  regulations  (Common
Rule), 60 Fed. Reg. 33037 (June 26, 1995).

     Section 2.17 Special Conditions. The Borrower shall comply with all Special
Conditions,  if  any,  referenced  in  Section  (11) of the  Loan  Authorization
Agreement or the Loan Authorization Notice.

                                   ARTICLE III
                               RIGHTS AND REMEDIES

     Section  3.1  Indemnification.  Upon  Eximbank's  payment of a claim to the
Lender in connection with the Loan pursuant to the Master  Guarantee  Agreement,
Eximbank  shall  assume  all rights and  remedies  of the Lender  under the Loan
Documents and may enforce any such rights or remedies against the Borrower,  the
Collateral and any  Guarantors.  Additionally,  the Borrower shall hold Eximbank
and the Lender harmless from and indemnify them against any and all liabilities,
damages,  claims,  costs  and  losses  incurred  or  suffered  by either of them
resulting from (a) any materially incorrect certification or statement knowingly
made by the Borrower or its agent to Eximbank or the Lender in  connection  with
the Loan,  this Agreement or any of the other Loan Documents or (b) any material
breach by the Borrower of the terms and  conditions of this  Agreement or any of
the other Loan  Documents.  The Borrower also  acknowledges  that any statement,
certification or representation made by the Borrower in connection with the Loan
is subject to the penalties provided in Article 18 U.S.C. Section 1001.

                                   ARTICLE IV
                                  MISCELLANEOUS

     Section  4.1  Governing  Law.  This  Agreement  shall be  governed  by, and
construed in accordance with, the law of the State of New York, United States of
America.

     Section 4.2  Notification.  All  notifications  required by this  Agreement
shall be given in the manner provided in the Loan Agreement.

     Section 4.3 Partial  Invalidity.  If at any time any of the  provisions  of
this Agreement  becomes  illegal,  invalid or unenforceable in any respect under
the  law of any  jurisdiction,  neither  the  legality,  the  validity  nor  the
enforceability  of the remaining  provisions hereof shall in any way be affected
or impaired.


     IN WITNESS  WHEREOF,  the  Borrower  has caused this  Agreement  to be duly
executed as of the _____ day of ________________, 199__.


__________________________
   (Name of Borrower)

By_______________________
    (Signature)

Name_____________________
              (Print or Type)

Title______________________
    (Print or Type)

ACKNOWLEDGED:

_________________________
   (Name of Lender)

By______________________
            (Signature)

Name_____________________
           (Print or Type)

Title____________________
  (Print or Type)

Guaranteed Loan No.__________________

ANNEXES:

A1  -  Loan Authorization Agreement or
A2  -  Loan Authorization Notice

                                                         (Revised April 1, 1996)





                                      NOTE



$6,000,000                                                    New York, New York
                                                                    June 4, 1999


          FOR VALUE  RECEIVED,  the  undersigned,  GSE PROCESS  SOLUTIONS,  INC.
("Process") and GSE POWER SYSTEMS, INC. ("Power"; collectively with Process, the
"Borrowers"),  hereby  unconditionally,  jointly and severally promise to pay to
the order of DIME COMMERCIAL  CORP.  (the "Lender") on the Termination  Date the
principal amount of Six Million Dollars  ($6,000,000) or, if less, the aggregate
outstanding  principal amount of the Loans made by the Lender to Power under the
Agreement  referred to below, and to pay interest on the unpaid principal amount
of each such Loan for the period  commencing on the date of such Loan until such
Loan  shall  have  been  paid in full at the  rates  per  annum and on the dates
provided in the Loan and  Security  Agreement  dated the date  hereof  among the
Borrowers,  GSE Systems,  Inc.,  MSHI,  Inc.,  GP  International  Engineering  &
Simulation,  Inc.  and the  Lender  (as it may  from  time  to time be  amended,
modified, restated or supplemented, the "Agreement") and as calculated therein.

          All  indebtedness  outstanding  under this Note  shall  bear  interest
(computed in the same manner as interest on this Note prior to  maturity)  after
the  occurrence  of any Event of Default as set forth in the  Agreement,  at the
Default Rate (as such term is defined in the  Agreement),  and all such interest
shall be payable on demand.

          Payments of both principal and interest on this Note are to be made at
the office of the Lender  provided  for in the  Agreement in lawful money of the
United  States of America and in  immediately  available  funds.  Credit for any
payments made by either Borrower shall,  for the purpose of computing  interest,
be given in accordance with the Agreement.

          This Note is secured  in the  manner  provided  in the  Agreement,  is
subject to prepayment  upon the terms and conditions  thereof and is entitled to
the benefits thereof.

          Upon  the  occurrence  of any  Event of  Default,  as  defined  in the
Agreement,  the  principal  amount of and  accrued  interest on this Note may be
declared to be, or shall automatically become, due and payable in the manner and
with the effect provided in the Agreement.


          The  Borrowers  shall  pay  all  costs  and  expenses  of  collection,
including,  without  limitation,  reasonable  attorneys' fees and disbursements,
incurred by the Lender in connection with collection of this Note.

          Except to the extent such waiver is  prohibited  by law, each Borrower
waives  presentment,  demand  and  protest  and notice of  presentment,  demand,
protest and non-payment and any other notice of any kind in connection with this
Note.

               THIS NOTE SHALL BE GOVERNED  BY, AND  CONSTRUED  AND  ENFORCED IN
ACCORDANCE  WITH,  THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO ITS RULES
PERTAINING TO CONFLICTS OF LAWS.


                                                     GSE PROCESS SOLUTIONS, INC.


                                                     By_______________________



                                                     GSE POWER SYSTEMS, INC.


                                                     By_______________________




                                SCHEDULE TO NOTE



               This  Note  evidences  Loans  made  under  the  within  described
Agreement,  in the principal amounts,  and on the dates set forth below, subject
to the payments or prepayments of principal set forth below:

<TABLE>
<CAPTION>
<S>               <C>               <C>              <C>               <C>

Principal          Principal
Amount of         Amount Paid         Balance
Date Made           Loan            or Prepaid       Outstanding       Initials
- ---------         -----------       ----------       -----------       --------
</TABLE>




                                      NOTE



$3,000,000                                                    New York, New York
                                                                    June 4, 1999


          FOR VALUE  RECEIVED,  the  undersigned,  GSE PROCESS  SOLUTIONS,  INC.
("Process") and GSE POWER SYSTEMS, INC. ("Power"; collectively with Process, the
"Borrowers"),  hereby  unconditionally,  jointly and severally promise to pay to
the order of DIME COMMERCIAL  CORP.  (the "Lender") on the Termination  Date the
principal  amount  of Three  Million  Dollars  ($3,000,000)  or,  if  less,  the
aggregate  outstanding  principal  amount  of the  Loans  made by the  Lender to
Process under the Agreement referred to below, and to pay interest on the unpaid
principal amount of each such Loan for the period commencing on the date of such
Loan  until such Loan shall have been paid in full at the rates per annum and on
the dates  provided  in the Loan and  Security  Agreement  dated the date hereof
among the Borrowers, GSE Systems, Inc., MSHI, Inc., GP International Engineering
&  Simulation,  Inc.  and the  Lender  (as it may from time to time be  amended,
modified, restated or supplemented, the "Agreement") and as calculated therein.

          All  indebtedness  outstanding  under this Note  shall  bear  interest
(computed in the same manner as interest on this Note prior to  maturity)  after
the  occurrence  of any Event of Default as set forth in the  Agreement,  at the
Default Rate (as such term is defined in the  Agreement),  and all such interest
shall be payable on demand.

          Payments of both principal and interest on this Note are to be made at
the office of the Lender  provided  for in the  Agreement in lawful money of the
United  States of America and in  immediately  available  funds.  Credit for any
payments made by either Borrower shall,  for the purpose of computing  interest,
be given in accordance with the Agreement.

          This Note is secured  in the  manner  provided  in the  Agreement,  is
subject to prepayment  upon the terms and conditions  thereof and is entitled to
the benefits thereof.

          Upon  the  occurrence  of any  Event of  Default,  as  defined  in the
Agreement,  the  principal  amount of and  accrued  interest on this Note may be
declared to be, or shall automatically become, due and payable in the manner and
with the effect provided in the Agreement.


          The  Borrowers  shall  pay  all  costs  and  expenses  of  collection,
including,  without  limitation,  reasonable  attorneys' fees and disbursements,
incurred by the Lender in connection with collection of this Note.

          Except to the extent such waiver is  prohibited  by law, each Borrower
waives  presentment,  demand  and  protest  and notice of  presentment,  demand,
protest and non-payment and any other notice of any kind in connection with this
Note.

               THIS NOTE SHALL BE GOVERNED  BY, AND  CONSTRUED  AND  ENFORCED IN
ACCORDANCE  WITH,  THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO ITS RULES
PERTAINING TO CONFLICTS OF LAWS.


                                                     GSE PROCESS SOLUTIONS, INC.


                                                     By_______________________



                                                     GSE POWER SYSTEMS, INC.


                                                     By_______________________




                                SCHEDULE TO NOTE



               This  Note  evidences  Loans  made  under  the  within  described
Agreement,  in the principal amounts,  and on the dates set forth below, subject
to the payments or prepayments of principal set forth below:

<TABLE>
<CAPTION>
<S>               <C>               <C>              <C>               <C>
                  Principal         Principal
                   Amount of        Amount Paid        Balance
Date Made           Loan            or Prepaid       Outstanding       Initials
- ---------         ----------        -----------      -----------       --------

</TABLE>



                                    GUARANTEE

          In order to induce Dime  Commercial  Corp.  (which,  together with its
successors,  endorsees and assigns,  is hereinafter called the "Lender") to make
such advances,  loans or extensions of credit,  directly or  indirectly,  to GSE
Power  Systems,  Inc.  ("Power")  and GSE Process  Solutions,  Inc.  ("Process")
(hereinafter,  whether one or more,  called the  "Borrower") and to grant to the
Borrower  such  renewals,  extensions,  forbearances,  releases of collateral or
other relinquishments of rights as the Lender may deem advisable,  and for other
valuable  consideration,  the  receipt  of which  is  hereby  acknowledged,  the
undersigned  (hereinafter,  whether one or more, called the "Guarantor") who, if
more  than  one,  shall  be  jointly  and  severally  liable  hereunder,  hereby
absolutely  and  unconditionally  guarantees  to the Lender the due and punctual
payment when due,  whether by acceleration or otherwise,  in accordance with the
terms  thereof,  of the  principal of and interest on and all other sums payable
with  respect to any and every  obligation  or  liability of the Borrower to the
Lender,   whether  now  existing  or  hereafter  incurred  (including,   without
limitation,  interest  accruing after, and advances made after, the commencement
of a  bankruptcy  case or  proceeding  with  respect to the  Borrower),  whether
contracted by the Borrower alone or jointly with others, and whether absolute or
contingent,  secured  or  unsecured,  matured or  unmatured  arising  under,  in
connection with or relating to the Loan and Security Agreement dated June , 1999
(as amended,  modified,  restated or  supplemented  from time to time, the "Loan
Agreement")  among GSE  Systems,  Inc.,  GSE Power  Systems,  Inc.,  GSE Process
Solutions,  Inc.,MSHI, Inc., GP International Engineering & Simulation, Inc. and
Lender (such  obligations  and  liabilities  of the Borrower  being  hereinafter
collectively called the  "Liabilities").  Notwithstanding any language contained
in this Guarantee relating to loans, it is expressly intended,  contemplated and
agreed that  Guarantor's  obligations  under this Guarantee shall extend to each
and all of the Liabilities,  whether or not such Liabilities  relate directly or
indirectly to loans.


          The liability of the Guarantor  hereunder shall in no event exceed the
principal amount of One Million Eight Hundred Thousand Dollars ($1,800,000) (the
"Original  Principal  Amount") as such amount may be increased as provided below
in this  paragraph,  plus  interest  on such  amount to the  extent  hereinafter
provided  in  this  Guarantee  and  expenses  related  to  enforcement  of  this
Guarantee.  Interest  will  accrue on the  principal  amount of the  Guarantor's
obligations  hereunder  from and after  the date  three  (3)  Business  Days (as
defined in the Loan  Agreement)  after any demand for payment  hereunder  at the
Default Rate (as defined in the Loan Agreement).  The Original  Principal Amount
shall be increased by (a) the amount of all payments by the Guarantor  hereunder
of the outstanding principal amount of the Liabilities of Process, provided that
the amount of such increase shall not exceed  $1,500,000,  and (b) the amount of
all payments by the Guarantor  hereunder of the outstanding  principal amount of
the  Liabilities  of Power,  provided that the amount of such increase shall not
exceed $1,500,000.  In no event will the Guarantor be obligated to pay hereunder
more than $3,300,000 of the outstanding  principal  amount of the Liabilities of
Power and Process in the aggregate  (including the Original  Principal  Amount),
plus  interest  and  enforcement  expenses  as herein  provided.  The  Lender is
expressly  authorized  to demand  payment  from the  Guarantor  and enforce this
Guarantee  against the  Guarantor and to recover the Original  Principal  Amount
plus the  maximum  amount  by  which  the  Original  Principal  Amount  could be
increased pursuant to this paragraph.  Notwithstanding  anything to the contrary
herein,  in the event of the  occurrence  of any Event of Default under the Loan
Agreement,  the Lender shall have the right at any time to commence a litigation
against the Guarantor and exercise any other remedies and to recover a principal
amount equal to the  outstanding  principal  amount of the  Liabilities of Power
(other  than its  Liabilities  under  Section 11 of the Loan  Agreement)  not to
exceed  $1,800,000 plus the outstanding  principal  amount of the Liabilities of
Process (other than its Liabilities  under Section 11 of the Loan Agreement) not
to exceed  $1,500,000,  plus such interest and enforcement  expenses referred to
above.  In any such  litigation,  the Guarantor shall not be permitted to assert
that its liability hereunder is limited to $1,800,000. Moreover, in the event of
any bankruptcy,  insolvency,  reorganization  or similar case or proceeding with
respect to the  Guarantor,  the  Lender  shall have the right to file a proof of
claim,  claim or other similar  document and to recover a principal amount equal
to the outstanding  principal amount of the Liabilities of Power (other than its
Liabilities  under Section 11 of the Loan  Agreement)  not to exceed  $1,800,000
plus the outstanding  principal amount of the Liabilities of Process (other than
its  Liabilities  under  Section  11  of  the  Loan  Agreement)  not  to  exceed
$1,500,000, plus such interest and enforcement expenses referred to above.

     The Guarantor expressly  acknowledges that the Lender may assign certain of
its  rights and  claims  under the Loan  Agreement  and the Loan  Documents  (as
defined in the Loan Agreement) against Power, a portion of its security interest
in Power's assets and certain  related  rights,  claims and security  interests,
including,  without  limitation,  a portion of its rights  under this  Guarantee
relating to the  Liabilities of Power, to the  Export-Import  Bank of the United
States ("EximBank"). In the event of such an assignment:

     (a) the Lender  shall have the right at any time to  commence a  litigation
against the  Guarantor  and  exercise  any other  remedies  (including,  without
limitation,  filing  a  proof  of  claim,  claim  or  similar  document  in  any
bankruptcy, insolvency, reorganization or similar proceeding with respect to the
Guarantor) and to recover a principal amount equal to the outstanding  principal
amount of the Liabilities of Process (other than its  Liabilities  under Section
11 of the Loan  Agreement)  not to exceed  $1,500,000,  plus such  interest  and
enforcement expenses referred to above,

     (b) EximBank  shall have the right at any time to commence a litigation  in
the same or any other court of competent  jurisdiction against the Guarantor and
exercise any other remedies  (including,  without limitation,  filing a proof of
claim, claim or similar document in any bankruptcy,  insolvency,  reorganization
or  similar  proceeding)  and  to  recover  a  principal  amount  equal  to  the
outstanding  principal  amount  of the  Liabilities  of  Power  (other  than its
Liabilities  under Section 11 of the Loan  Agreement) not to exceed  $1,800,000,
plus such interest and enforcement expenses referred to above, and

     (c) the  Guarantor  shall not be  permitted  to assert  that its  liability
hereunder is limited to $1,800,000.

          The  liability  of the  Guarantor  under this  Guarantee  shall not be
affected by nor shall anything herein  contained be deemed to be a limitation on
the nature or the amount of loans,  advances or other  extensions of credit made
to the Borrower.  Such  continuing  liability shall not be reduced on account of
any payment or  performance  by the  Borrower,  but shall be reduced only to the
extent the Guarantor  makes  payments to the Bank on account of liability of the
Guarantor pursuant to this Guarantee.

          This  Guarantee  will  terminate  one  year  after  the  date  of this
Guarantee  but only to the extent it relates to  Liabilities  arising from Loans
and Lender Letters of Credit (as defined in the Loan  Agreement)  made or issued
after the effective  date of such  termination,  provided that such  termination
will not be effective unless the Guarantor gives at least thirty (30) days prior
written  notice to the Lender,  which must be receipted for by an officer of the
Lender. The Guarantor acknowledges and agrees that delivery of such notice shall
constitute an immediate  Event of Default under the Loan Agreement and,  without
limiting the rights and remedies  available to the Lender, the Lender shall have
the right to demand payment under and otherwise enforce this Guarantee.

          In the event of any such termination of this Guarantee,  the Guarantor
shall  nevertheless  remain  liable with respect to all  Liabilities  created or
arising prior to the  effective  date of  termination;  and with respect to such
Liabilities and any renewals and extensions,  and any Liabilities arising out of
them,  including,  without limitation,  interest,  fees and enforcement expenses
relating  thereto,  this Guarantee shall remain in full force and effect and the
Lender shall have all the rights herein  provided for as if no such  termination
had occurred.

          As used  in  this  Guarantee,  the  following  terms  shall  have  the
following meanings:
               (a) "Claims"  shall mean any and all claims,  rights and demands,
presently  existing  or  hereafter  arising,  and  all  interest  heretofore  or
hereafter  accrued  thereon,  and any and all  collateral or security  interests
relating  thereto and the proceeds  thereof,  which the Guarantor now has or may
hereafter have or acquire against the Borrower.

               (b) "Collateral"  shall mean any and all collateral  described in
any and  all  credit  accommodations,  notes,  loan  agreements,  and any  other
agreements  and  documents,  now or hereafter  existing,  creating,  evidencing,
guaranteeing,  securing, or relating to any or all of the Liabilities,  together
with all amendments, modifications, renewals or extensions thereof.

               The  Guarantor  hereby  grants to the Lender full power,  without
notice  to the  Guarantor,  and,  if there is more  than  one  Guarantor  liable
hereunder,  without in any way  affecting the joint and several  obligations  of
each  Guarantor  hereunder,  to  deal  in any  manner  with  the  Borrower,  the
Liabilities,  the Collateral  and with any other  Guarantor  hereunder,  and any
other guarantor of the Liabilities  including,  without limitation,  the powers:
(a) to  modify  or  otherwise  change  any  terms  of all  or  any  part  of the
Liabilities and/or the Collateral, to grant any extension or renewal thereof and
any  other  indulgence  with  respect  thereto,   and  to  effect  any  release,
subordination,  compromise  or  settlement  with  respect to the  Borrower,  the
Liabilities,  the  Collateral,  and  the  obligation  of any  one or more of the
Guarantors;  (b) to enter into any agreement of forbearance  with respect to all
or any  part  of the  Collateral,  or with  respect  to the  Liabilities  of the
Borrower or the obligations of any Guarantor, or to change the terms of any such
agreement;  (c) to forbear from calling for additional  collateral to secure any
of the Liabilities or to secure any obligation comprised in the Collateral;  and
(d) to consent to the substitution,  exchange,  or release of all or any part of
the Collateral,  whether or not the collateral,  if any,  received by the Lender
upon  such  substitution,  exchange,  or  release  shall  be of the same or of a
different character or value than the collateral surrendered by the Lender.

               The  Guarantor  waives  any  notice  of the  acceptance  of  this
Guarantee,  or of the  creation,  renewal or accrual of any of the  Liabilities,
present or future,  or of the  reliance of the Lender upon this  Guarantee.  The
Liabilities shall conclusively be presumed to have been created, contracted for,
incurred or suffered to exist in reliance upon this Guarantee,  and all dealings
between the Borrower and the Lender shall likewise be presumed to be in reliance
upon this  Guarantee.  The Guarantor  waives  protest,  presentment,  demand for
payment, notice of default or non-payment, and notice of dishonor to or upon the
Guarantor,  the Borrower,  or any other party liable for any of the Liabilities.
The Guarantor  acknowledges that this Guarantee and the Guarantor's  obligations
under this  Guarantee  are and shall at all times  continue to be  absolute  and
unconditional  in all respects,  and shall at all times be valid and enforceable
irrespective  of (a)  any  other  agreements  or  circumstances  of  any  nature
whatsoever which might otherwise  constitute a defense to this Guarantee and the
obligations of the Guarantor  under this  Guarantee,  (b) the obligations of any
other person or party (including,  without limitation, the Borrower) relating to
this  Guarantee,  or (c) the  obligations  of any  other  guarantor  under  this
Guarantee or otherwise with respect to the  Liabilities.  The obligations of the
Guarantor hereunder,  and the rights of the Lender in the Collateral,  shall not
be released, discharged or in any way affected, nor shall the Guarantor have any
rights  against  the  Lender  by reason  of the fact  that the  Lender  fails to
preserve any rights in the Collateral or take any action whatsoever in regard to
the  Collateral or that any of the  Collateral  may be in default at the time of
acceptance  thereof  by the  Lender or  later;  nor by reason of the fact that a
valid lien in any of the  Collateral may not be conveyed to, or created in favor
of the  Lender;  nor by  reason of the fact  that any of the  Collateral  may be
subject to  equities  or defenses or claims in favor of others or may be invalid
or defective  in any way; nor by reason of the fact that any of the  Liabilities
may be invalid or unenforceable  against the Borrower or any obligor thereon for
any  reason  whatsoever;  nor by  reason  of the  fact  that  the  value  of the
Collateral,  if any,  or the  financial  condition  of the  Borrower,  or of any
obligor on the Liabilities or any obligation  included in the Collateral may not
have been correctly  estimated or was thereafter  changed;  nor by reason of any
deterioration,  waste,  or loss  by  fire,  theft,  or  otherwise  of any of the
Collateral;  nor by reason of the release,  in whole or in part, with or without
consideration of the Collateral or any of it.



               Subject to the second  paragraph in this  Guarantee,  in case the
Borrower  shall  fail to pay all or any part of the  Liabilities  when due,  the
Guarantor  immediately  will pay to the  Lender the amount due and unpaid by the
Borrower under such  Liabilities,  in like manner as if such amount  constituted
the direct and primary obligation of the Guarantor. The Lender shall be entitled
to exercise  any rights and  remedies it may have under this  Guarantee  without
being obligated to resort first to the Collateral or to any other security or to
any  other  remedy  or  remedies  to  enforce   payment  or  collection  of  the
Liabilities,  and may pursue all or any of its  remedies at one or at  different
times. With respect to the Claims, the Guarantor hereby irrevocably subordinates
the  Claims  to the prior  payment  in full of all of the  Liabilities,  and the
Guarantor agrees that the Lender shall have the full right in its own name or in
the name of the  Guarantor to collect and enforce  such Claims by legal  action,
proof  of debt in  bankruptcy  or  other  liquidation  proceedings,  vote in any
proceeding for the arrangement of debts at any time proposed, or otherwise,  the
Lender  and  each  of  its  officers   being  hereby   irrevocably   constituted
attorneys-in-fact  for the Guarantor for the purpose of such enforcement and for
the purpose of endorsing in the name of the  Guarantor  any  instrument  for the
payment of money. In furtherance of such subordination,  but without limiting or
reducing the amount of the Guarantor's  obligations  under this  Guarantee,  the
Guarantor  will  receive  as  trustee  for the Lender and will pay to the Lender
forthwith upon receipt  thereof any amounts which the Guarantor may receive from
the Borrower on account of the Claims.  The Guarantor  agrees that no payment on
account  of such  Claims or any  security  interest  therein  shall be  created,
received,  accepted or retained nor shall any financing  statement be filed with
respect  thereto by the  Guarantor  unless and until the  Borrower  has paid and
satisfied  in full all the  Liabilities.  The  Lender is hereby  authorized  and
empowered, upon the occurrence of any Event of Default, to appropriate and apply
to the payment and extinguishment of the Liabilities of the Borrower any and all
Claims and payments  thereof,  without demand,  advertisement or notice,  all of
which are hereby expressly waived, and such application shall not limit or
reduce the amount of the Guarantor's obligations under this Guarantee.

               In the event  that the  Lender  shall  receive  any  payments  on
account of any of the Liabilities,  whether directly or indirectly, and it shall
subsequently be determined that such payments were for any reason improper, or a
claim  shall be made  against the Lender  that the same were  improper,  and the
Lender either  voluntarily or pursuant to court order shall return the same, the
Guarantor  shall be liable,  with the same  effect as if the said  payments  had
never been paid to, or received by, the Lender, for the amount of such repaid or
returned  payments,  notwithstanding  the fact  that  such  repaid  or  returned
payments may theretofore have been credited on account of the Liabilities or any
of them. If the Guarantee  hereunder with respect to any Guarantor would be held
or determined to be void,  invalid or  unenforceable on account of the amount of
such Guarantor's aggregate liability under this Guarantee,  then notwithstanding
any other provision of this Guarantee to the contrary,  the maximum liability of
such Guarantor hereunder shall be automatically limited and reduced to an amount
equal to the maximum amount that would not render this Guarantee with respect to
such   Guarantor   void,   invalid   or   unenforceable.   The   invalidity   or
unenforceability  of any  portion of this  Guarantee  shall in no way affect the
validity or enforceability of any other portion of this Guarantee.

               The Guarantor  hereby  irrevocably  waives for the benefit of the
Borrower and the Lender, and agrees that it will not exercise,  any rights which
it may have or  acquire  by way of  subrogation  under  this  Guarantee,  by any
payment made  hereunder or otherwise,  until all of the  Liabilities  shall have
been paid in full.  If any amount  shall be paid to the  Guarantor on account of
such subrogation  rights at any time when any of the Liabilities  shall not have
been paid in full,  such  amount  shall be held in trust for the  benefit of the
Lender and shall forthwith be paid to the Lender to be credited and applied upon
the Liabilities, whether matured or unmatured, in accordance with their terms.

               The Guarantor agrees to pay all reasonable  expenses  incurred by
the  Lender  (including,  without  limitation,  reasonable  attorneys'  fees and
disbursements) in connection with enforcement of this Guarantee.

               No delay on the part of the  Lender  in  exercising  any power or
right  hereunder  shall  operate  as a waiver  thereof;  nor shall any single or
partial  exercise of any power or right hereunder or the failure to exercise the
same in any instance  preclude other or further exercise thereof or the exercise
of any other power or right;  nor shall the Lender be liable for  exercising  or
failing to exercise any such power or right;  the rights and remedies  hereunder
expressly  specified are  cumulative and not exclusive of any rights or remedies
which the  Lender or anyone on whose  behalf it has acted or shall act as herein
provided, or its or his or their transferees, may or will otherwise have.


               All  payments   hereunder   shall  be  made  without  set-off  or
counterclaim  and free and clear of, and without  deduction  for, any present or
future  withholding or other taxes or duties,  including stamp duties,  or other
charges of any nature imposed on such payments by or on behalf of any government
or any political  subdivision or agency  thereof or therein.  If any such taxes,
duties or charges are so levied or imposed on any such  payment,  the  Guarantor
will make  additional  payments in such  amounts as may be necessary so that the
net amount received by the Lender, after deduction for or on account of all such
taxes,  duties or charges,  will be equal to the amount provided for herein. The
Guarantor shall furnish promptly to the Lender official receipts  evidencing the
payment  of any such  taxes,  duties  or  charges  paid by the  Guarantor.  This
paragraph  shall not apply to taxes  imposed  on the net income of the Lender by
the  United  States  of  America,  or the  State  of New  York or any  political
subdivision  thereof. In the event that the Lender actually receives a refund of
or  credit  for taxes in  respect  of which the  Guarantor  has made  additional
payments  to  the  Lender  under  this  paragraph  which  credit  or  refund  is
identifiable  by the  Lender as being a result of taxes in  respect of which the
Guarantor has made additional  payments to the Lender under this paragraph,  the
Lender shall promptly  notify the Guarantor and shall remit to the Guarantor the
amount of such refund or credit  (without  interest) up to but not exceeding the
lesser of (a) such additional  payment or payments by the Guarantor,  or (b) the
actual  after-tax  benefit to the Lender resulting from such refund or credit as
conclusively  determined  by the  Lender.  Nothing  contained  herein  shall (i)
obligate  the  Lender to apply for such a refund or credit or (b)  afford to the
Guarantor  any right to inspect or review any  financial  or tax  records of the
Lender.

               The term "the Lender" as used throughout this instrument shall be
deemed to include Dime Commercial  Corp.,  all of its branches and  departments,
and any individual,  partnership or corporation  acting as its nominee or agent,
and any  corporation  the  majority  of the  voting  stock  of which is owned or
controlled, directly or indirectly, by Dime Commercial Corp. or The Dime Savings
Bank of New York,  FSB. The term  "Borrower" as used  throughout this instrument
shall include the individual or individuals,  association,  partnership, limited
liability  company,  or corporations  named herein as the Borrower,  and (a) any
successor,  individual  or  individuals,  association,  partnership,  or limited
liability  company  or  corporations  to which all or  substantially  all of the
business or assets of the Borrower shall have been transferred,  (b) in the case
of a Borrower  which is a  partnership  or limited  liability  company,  any new
partnership or limited liability company which shall have been created by reason
of the admission of any new partner or partners or new member or members therein
or the  dissolution  of the existing  partnership  by the death,  resignation or
other  withdrawal  of any  partner or member,  and (c) in the case of a Borrower
which is a corporation,  any other  corporation  into or with which the Borrower
shall have been merged, consolidated, reorganized, purchased or absorbed.

               This Guarantee shall, without further reference,  pass to and may
be relied on and enforced by any  successor  or assignee of the Lender,  and any
transferee  or  subsequent  holder of any of the  Liabilities,  and the Borrower
and/or the  Guarantor  will not assert any claims it may have against the Lender
against  any such  assignee,  successor,  transferee,  or any  other  subsequent
holder.  Subject to the fifth paragraph in this  Guarantee,  this Guarantee is a
continuing  guarantee,  and is to remain  in full  force  and  effect  until the
termination of the Commitment (as defined in the Loan Agreement) and the payment
of all  Liabilities  of the  Borrower  to the Lender,  whether  now  existing or
hereafter  incurred,  notwithstanding  the  appointment of a receiver of, or the
dissolution of, and/or any other change in, or with respect to, the Borrower. No
change,  modification,  waiver,  or  discharge,  in whole  or in  part,  of this
Guarantee  shall be effective  unless in writing and signed by the party against
whom such change, modification, waiver, or discharge is sought to be enforced.


               THIS GUARANTEE SHALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED
BY THE LAW OF, THE STATE OF NEW YORK,  WITHOUT REGARD TO PRINCIPLES OF CONFLICTS
OF LAWS. THE GUARANTOR HEREBY AGREES THAT ANY LEGAL ACTION OR PROCEEDING AGAINST
THE GUARANTOR WITH RESPECT TO THIS GUARANTEE MAY BE BROUGHT IN THE COURTS OF THE
STATE OF NEW YORK IN THE CITY OF NEW YORK OR OF THE UNITED STATES OF AMERICA FOR
THE SOUTHERN DISTRICT OF NEW YORK AS THE LENDER MAY ELECT, AND, BY EXECUTION AND
DELIVERY  HEREOF,  THE  GUARANTOR  ACCEPTS  AND  CONSENTS  TO, FOR ITSELF AND IN
RESPECT OF ITS PROPERTY, GENERALLY AND UNCONDITIONALLY,  THE JURISDICTION OF THE
AFORESAID COURTS AND AGREES THAT SUCH  JURISDICTION  SHALL BE EXCLUSIVE,  UNLESS
WAIVED BY THE LENDER IN WRITING, WITH RESPECT TO ANY CLAIM, ACTION OR PROCEEDING
BROUGHT BY IT AGAINST THE LENDER AND ANY  QUESTIONS  RELATING TO USURY.  NOTHING
HEREIN  SHALL  LIMIT THE RIGHT OF THE LENDER TO BRING  PROCEEDINGS  AGAINST  THE
GUARANTOR IN ANY OTHER JURISDICTION.  THE GUARANTOR  IRREVOCABLY CONSENTS TO THE
SERVICE OF PROCESS IN ANY SUCH LEGAL ACTION OR PROCEEDING  BY PERSONAL  DELIVERY
OR BY THE MAILING THEREOF BY THE LENDER BY REGISTERED OR CERTIFIED MAIL,  RETURN
RECEIPT REQUESTED,  POSTAGE PREPAID,  TO THE ADDRESS SPECIFIED IN THE RECORDS OF
THE LENDER,  SUCH SERVICE OF PROCESS BY MAIL TO BE DEEMED EFFECTIVE ON THE FIFTH
DAY FOLLOWING  SUCH MAILING.  THE GUARANTOR  AGREES THAT A FINAL JUDGMENT IN ANY
SUCH LEGAL ACTION OR PROCEEDING SHALL BE CONCLUSIVE AND MAY BE
ENFORCED IN ANY MANNER PROVIDED BY LAW.

               The  Guarantor  has  made  an  independent  investigation  of the
Borrower and of the financial condition of the Borrower. The Lender has not made
and does not make any  representations  as to the  income,  expense,  operation,
finances or any other matter or thing  affecting the Borrower nor has the Lender
made any  representation  as to the amount or nature of the  Liabilities  of the
Borrower to which this Guarantee  applies as specifically  herein set forth, nor
has  the  Lender  or  any  officer,  agent  or  employee  of the  Lender  or any
representative  thereof,  made any other  oral  representations,  agreements  or
commitments  of  any  kind  or  nature,   and  the  Guarantor  hereby  expressly
acknowledges that no such  representations have been made. It is agreed that any
and all understandings and agreements heretofore made between the parties hereto
are  merged  in this  Guarantee,  and  that  this  Guarantee  alone,  fully  and
completely, expresses the understanding of such parties.

     If for the purposes of  obtaining  judgment in any court it is necessary to
convert a sum due hereunder in U.S. Dollars into another  currency,  the parties
hereto agree,  to the fullest  extent that they may  effectively do so, that the
rate of exchange used shall be that at which in accordance  with normal  banking
procedures  the Lender could  purchase U.S.  Dollars with such other currency in
New York City on the business day (being any day on which  commercial  banks are
open for  domestic and  international  business  (including  dealings in foreign
exchange) in New York City) preceding that on which final judgment is given. The
obligation  of the  Guarantor  in  respect  of any sum due from it to the Lender
hereunder  shall,  notwithstanding  any  judgment in a currency  other than U.S.
Dollars,  be  discharged  only to the extent that on the business day  following
receipt by the Lender of any sum  adjudged  to be so due in such other  currency
the Lender may in  accordance  with  normal  banking  procedures  purchase  U.S.
Dollars with such other currency; if the U.S. Dollars so purchased are less than
the sum originally due to the Lender in U.S. Dollars, the Guarantor agrees, as a
separate  obligation and  notwithstanding  any such  judgment,  to indemnify the
Lender  against such loss, and if the U.S.  Dollars so purchased  exceed the sum
originally due to the Lender in U.S. Dollars,  the Lender agrees to remit to the
Guarantor such excess.

          NO  CLAIM  MAY BE MADE BY ANY  GUARANTOR  AGAINST  THE  LENDER  OR THE
AFFILIATES,  DIRECTORS,  OFFICERS, EMPLOYEES,  ATTORNEYS OR AGENTS OF THE LENDER
FOR ANY SPECIAL,  INDIRECT OR  CONSEQUENTIAL  DAMAGES OR, TO THE FULLEST  EXTENT
PERMITTED BY LAW,  FOR ANY PUNITIVE  DAMAGES IN RESPECT OF ANY CLAIM OR CAUSE OF
ACTION  (WHETHER  BASED ON CONTRACT,  TORT,  STATUTORY  LIABILITY,  OR ANY OTHER
GROUND) BASED ON, ARISING OUT OF OR RELATED TO THIS  GUARANTEE,  THE LIABILITIES
OR THE TRANSACTIONS  CONTEMPLATED HEREBY OR ANY ACT, OMISSION OR EVENT OCCURRING
IN CONNECTION THEREWITH,  AND EACH GUARANTOR HEREBY WAIVES,  RELEASES AND AGREES
NEVER TO SUE UPON ANY CLAIM FOR ANY SUCH DAMAGES,  WHETHER SUCH CLAIM NOW EXISTS
OR HEREAFTER  ARISES AND WHETHER OR NOT IT IS NOW KNOWN OR SUSPECTED TO EXIST IN
ITS FAVOR.

          TO THE EXTENT  PERMITTED BY APPLICABLE  LAW, THE GUARANTOR  WAIVES THE
RIGHT  TO  INTERPOSE  COUNTERCLAIMS,  CROSS-CLAIMS  OR  SETOFFS  OF ANY KIND AND
DESCRIPTION  AND ALL DEFENSES  (OTHER THAN PAYMENT IN FULL OF ALL LIABILITIES IN
CASH) IN ANY LITIGATION ARISING HEREUNDER.

          AFTER  REVIEWING  THIS  PROVISION  SPECIFICALLY  WITH  ITS  RESPECTIVE
COUNSEL, EACH OF THE GUARANTOR AND THE LENDER HEREBY KNOWINGLY,  VOLUNTARILY AND
INTENTIONALLY  WAIVE ANY AND ALL RIGHTS THE GUARANTOR AND THE LENDER MAY HAVE TO
A TRIAL BY JURY IN RESPECT OF ANY LITIGATION BASED ON, OR ARISING OUT OF, UNDER,
OR IN  CONNECTION  WITH,  THIS  GUARANTEE  OR ANY COURSE OF  CONDUCT,  COURSE OF
DEALING, STATEMENTS (WHETHER VERBAL OR WRITTEN) OR ACTIONS OF THE GUARANTOR, THE
BORROWER OR THE LENDER.  THIS PROVISION IS A MATERIAL  INDUCEMENT FOR THE LENDER
TO EXTEND CREDIT .

          IN WITNESS  WHEREOF,  this  Guarantee  has been duly  executed  by the
undersigned on the day of June, 1999.

                                               GUARANTORS:


                                               MANTECH INTERNATIONAL CORPORATION


                                               By:______________________________

                                                  Name:
                                                  Title:


                                              By:_______________________________

                                                 Name:
                                                 Title:



                                    GUARANTEE

               In order to induce Dime Commercial  Corp.  (which,  together with
its successors,  endorsees and assigns,  is hereinafter  called the "Lender") to
make such advances,  loans or extensions of credit,  directly or indirectly,  to
GSE Power Systems,  Inc. ("Power") and GSE Process Solutions,  Inc.  ("Process")
(hereinafter,  whether one or more,  called the  "Borrower") and to grant to the
Borrower  such  renewals,  extensions,  forbearances,  releases of collateral or
other relinquishments of rights as the Lender may deem advisable,  and for other
valuable  consideration,  the  receipt  of which  is  hereby  acknowledged,  the
undersigned  (hereinafter,  whether one or more, called the "Guarantor") who, if
more  than  one,  shall  be  jointly  and  severally  liable  hereunder,  hereby
absolutely  and  unconditionally  guarantees  to the Lender the due and punctual
payment when due,  whether by acceleration or otherwise,  in accordance with the
terms  thereof,  of the  principal of and interest on and all other sums payable
with  respect to any and every  obligation  or  liability of the Borrower to the
Lender,   whether  now  existing  or  hereafter  incurred  (including,   without
limitation,  interest  accruing after, and advances made after, the commencement
of a  bankruptcy  case or  proceeding  with  respect to the  Borrower),  whether
contracted by the Borrower alone or jointly with others, and whether absolute or
contingent,  secured  or  unsecured,  matured or  unmatured  arising  under,  in
connection with or relating to the Loan and Security Agreement dated June , 1999
(as amended,  modified,  restated or  supplemented  from time to time, the "Loan
Agreement")  among GSE  Systems,  Inc.,  GSE Power  Systems,  Inc.,  GSE Process
Solutions,  Inc.,MSHI, Inc., GP International Engineering & Simulation, Inc. and
Lender (such  obligations  and  liabilities  of the Borrower  being  hereinafter
collectively called the  "Liabilities").  Notwithstanding any language contained
in this Guarantee relating to loans, it is expressly intended,  contemplated and
agreed that  Guarantor's  obligations  under this Guarantee shall extend to each
and all of the Liabilities,  whether or not such Liabilities  relate directly or
indirectly to loans.

               The liability of the Guarantor hereunder shall in no event exceed
the principal amount of One Million Eight Hundred Thousand Dollars  ($1,800,000)
(the  "Original  Principal  Amount") as such amount may be increased as provided
below in this paragraph,  plus interest on such amount to the extent hereinafter
provided  in  this  Guarantee  and  expenses  related  to  enforcement  of  this
Guarantee.  Interest  will  accrue on the  principal  amount of the  Guarantor's
obligations  hereunder  from and after  the date  three  (3)  Business  Days (as
defined in the Loan  Agreement)  after any demand for payment  hereunder  at the
Default Rate (as defined in the Loan Agreement).  The Original  Principal Amount
shall be increased by (a) the amount of all payments by the Guarantor  hereunder
of the outstanding principal amount of the Liabilities of Process, provided that
the amount of such increase shall not exceed  $1,500,000,  and (b) the amount of
all payments by the Guarantor  hereunder of the outstanding  principal amount of
the  Liabilities  of Power,  provided that the amount of such increase shall not
exceed $1,500,000.  In no event will the Guarantor be obligated to pay hereunder
more than $3,300,000 of the outstanding  principal  amount of the Liabilities of
Power and Process in the aggregate  (including the Original  Principal  Amount),
plus  interest  and  enforcement  expenses  as herein  provided.  The  Lender is
expressly  authorized  to demand  payment  from the  Guarantor  and enforce this
Guarantee  against the  Guarantor and to recover the Original  Principal  Amount
plus the  maximum  amount  by  which  the  Original  Principal  Amount  could be
increased pursuant to this paragraph.  Notwithstanding  anything to the contrary
herein,  in the event of the  occurrence  of any Event of Default under the Loan
Agreement,  the Lender shall have the right at any time to commence a litigation
against the Guarantor and exercise any other remedies and to recover a principal
amount equal to the  outstanding  principal  amount of the  Liabilities of Power
(other  than its  Liabilities  under  Section 11 of the Loan  Agreement)  not to
exceed  $1,800,000 plus the outstanding  principal  amount of the Liabilities of
Process (other than its Liabilities  under Section 11 of the Loan Agreement) not
to exceed  $1,500,000,  plus such interest and enforcement  expenses referred to
above.  In any such  litigation,  the Guarantor shall not be permitted to assert
that its liability hereunder is limited to $1,800,000. Moreover, in the event of
any bankruptcy,  insolvency,  reorganization  or similar case or proceeding with
respect to the  Guarantor,  the  Lender  shall have the right to file a proof of
claim,  claim or other similar  document and to recover a principal amount equal
to the outstanding  principal amount of the Liabilities of Power (other than its
Liabilities  under Section 11 of the Loan  Agreement)  not to exceed  $1,800,000
plus the outstanding  principal amount of the Liabilities of Process (other than
its  Liabilities  under  Section  11  of  the  Loan  Agreement)  not  to  exceed
$1,500,000, plus such interest and enforcement expenses referred to above.

     The Guarantor expressly  acknowledges that the Lender may assign certain of
its  rights and  claims  under the Loan  Agreement  and the Loan  Documents  (as
defined in the Loan Agreement) against Power, a portion of its security interest
in Power's assets and certain  related  rights,  claims and security  interests,
including,  without  limitation,  a portion of its rights  under this  Guarantee
relating to the  Liabilities of Power, to the  Export-Import  Bank of the United
States ("EximBank"). In the event of such an assignment:

     (a) the Lender  shall have the right at any time to  commence a  litigation
against the  Guarantor  and  exercise  any other  remedies  (including,  without
limitation,  filing  a  proof  of  claim,  claim  or  similar  document  in  any
bankruptcy, insolvency, reorganization or similar proceeding with respect to the
Guarantor) and to recover a principal amount equal to the outstanding  principal
amount of the Liabilities of Process (other than its  Liabilities  under Section
11 of the Loan  Agreement)  not to exceed  $1,500,000,  plus such  interest  and
enforcement expenses referred to above,

     (b) EximBank  shall have the right at any time to commence a litigation  in
the same or any other court of competent  jurisdiction against the Guarantor and
exercise any other remedies  (including,  without limitation,  filing a proof of
claim, claim or similar document in any bankruptcy,  insolvency,  reorganization
or  similar  proceeding)  and  to  recover  a  principal  amount  equal  to  the
outstanding  principal  amount  of the  Liabilities  of  Power  (other  than its
Liabilities  under Section 11 of the Loan  Agreement) not to exceed  $1,800,000,
plus such interest and enforcement expenses referred to above, and

     (c) the  Guarantor  shall not be  permitted  to assert  that its  liability
hereunder is limited to $1,800,000.

          The  liability  of the  Guarantor  under this  Guarantee  shall not be
affected by nor shall anything herein  contained be deemed to be a limitation on
the nature or the amount of loans,  advances or other  extensions of credit made
to the Borrower.  Such  continuing  liability shall not be reduced on account of
any payment or  performance  by the  Borrower,  but shall be reduced only to the
extent the Guarantor  makes  payments to the Bank on account of liability of the
Guarantor pursuant to this Guarantee.

          This  Guarantee  will  terminate  one  year  after  the  date  of this
Guarantee  but only to the extent it relates to  Liabilities  arising from Loans
and Lender Letters of Credit (as defined in the Loan  Agreement)  made or issued
after the effective  date of such  termination,  provided that such  termination
will not be effective unless the Guarantor gives at least thirty (30) days prior
written  notice to the Lender,  which must be receipted for by an officer of the
Lender. The Guarantor acknowledges and agrees that delivery of such notice shall
constitute an immediate  Event of Default under the Loan Agreement and,  without
limiting the rights and remedies  available to the Lender, the Lender shall have
the right to demand payment under and otherwise enforce this Guarantee.

          In the event of any such termination of this Guarantee,  the Guarantor
shall  nevertheless  remain  liable with respect to all  Liabilities  created or
arising prior to the  effective  date of  termination;  and with respect to such
Liabilities and any renewals and extensions,  and any Liabilities arising out of
them,  including,  without limitation,  interest,  fees and enforcement expenses
relating  thereto,  this Guarantee shall remain in full force and effect and the
Lender shall have all the rights herein  provided for as if no such  termination
had occurred.

          As used  in  this  Guarantee,  the  following  terms  shall  have  the
following meanings:

               (a) "Claims"  shall mean any and all claims,  rights and demands,
presently  existing  or  hereafter  arising,  and  all  interest  heretofore  or
hereafter  accrued  thereon,  and any and all  collateral or security  interests
relating  thereto and the proceeds  thereof,  which the Guarantor now has or may
hereafter have or acquire against the Borrower.

               (b) "Collateral"  shall mean any and all collateral  described in
any and  all  credit  accommodations,  notes,  loan  agreements,  and any  other
agreements  and  documents,  now or hereafter  existing,  creating,  evidencing,
guaranteeing,  securing, or relating to any or all of the Liabilities,  together
with all amendments, modifications, renewals or extensions thereof.

               The  Guarantor  hereby  grants to the Lender full power,  without
notice  to the  Guarantor,  and,  if there is more  than  one  Guarantor  liable
hereunder,  without in any way  affecting the joint and several  obligations  of
each  Guarantor  hereunder,  to  deal  in any  manner  with  the  Borrower,  the
Liabilities,  the Collateral  and with any other  Guarantor  hereunder,  and any
other guarantor of the Liabilities  including,  without limitation,  the powers:
(a) to  modify  or  otherwise  change  any  terms  of all  or  any  part  of the
Liabilities and/or the Collateral, to grant any extension or renewal thereof and
any  other  indulgence  with  respect  thereto,   and  to  effect  any  release,
subordination,  compromise  or  settlement  with  respect to the  Borrower,  the
Liabilities,  the  Collateral,  and  the  obligation  of any  one or more of the
Guarantors;  (b) to enter into any agreement of forbearance  with respect to all
or any  part  of the  Collateral,  or with  respect  to the  Liabilities  of the
Borrower or the obligations of any Guarantor, or to change the terms of any such
agreement;  (c) to forbear from calling for additional  collateral to secure any
of the Liabilities or to secure any obligation comprised in the Collateral;  and
(d) to consent to the substitution,  exchange,  or release of all or any part of
the Collateral,  whether or not the collateral,  if any,  received by the Lender
upon  such  substitution,  exchange,  or  release  shall  be of the same or of a
different character or value than the collateral surrendered by the Lender.

               The  Guarantor  waives  any  notice  of the  acceptance  of  this
Guarantee,  or of the  creation,  renewal or accrual of any of the  Liabilities,
present or future,  or of the  reliance of the Lender upon this  Guarantee.  The
Liabilities shall conclusively be presumed to have been created, contracted for,
incurred or suffered to exist in reliance upon this Guarantee,  and all dealings
between the Borrower and the Lender shall likewise be presumed to be in reliance
upon this  Guarantee.  The Guarantor  waives  protest,  presentment,  demand for
payment, notice of default or non-payment, and notice of dishonor to or upon the
Guarantor,  the Borrower,  or any other party liable for any of the Liabilities.
The Guarantor  acknowledges that this Guarantee and the Guarantor's  obligations
under this  Guarantee  are and shall at all times  continue to be  absolute  and
unconditional  in all respects,  and shall at all times be valid and enforceable
irrespective  of (a)  any  other  agreements  or  circumstances  of  any  nature
whatsoever which might otherwise  constitute a defense to this Guarantee and the
obligations of the Guarantor  under this  Guarantee,  (b) the obligations of any
other person or party (including,  without limitation, the Borrower) relating to
this  Guarantee,  or (c) the  obligations  of any  other  guarantor  under  this
Guarantee or otherwise with respect to the  Liabilities.  The obligations of the
Guarantor hereunder,  and the rights of the Lender in the Collateral,  shall not
be released, discharged or in any way affected, nor shall the Guarantor have any
rights  against  the  Lender  by reason  of the fact  that the  Lender  fails to
preserve any rights in the Collateral or take any action whatsoever in regard to
the  Collateral or that any of the  Collateral  may be in default at the time of
acceptance  thereof  by the  Lender or  later;  nor by reason of the fact that a
valid lien in any of the  Collateral may not be conveyed to, or created in favor
of the  Lender;  nor by  reason of the fact  that any of the  Collateral  may be
subject to  equities  or defenses or claims in favor of others or may be invalid
or defective  in any way; nor by reason of the fact that any of the  Liabilities
may be invalid or unenforceable  against the Borrower or any obligor thereon for
any  reason  whatsoever;  nor by  reason  of the  fact  that  the  value  of the
Collateral,  if any,  or the  financial  condition  of the  Borrower,  or of any
obligor on the Liabilities or any obligation  included in the Collateral may not
have been correctly  estimated or was thereafter  changed;  nor by reason of any
deterioration,  waste,  or loss  by  fire,  theft,  or  otherwise  of any of the
Collateral;  nor by reason of the release,  in whole or in part, with or without
consideration of the Collateral or any of it.

               Subject to the second  paragraph in this  Guarantee,  in case the
Borrower  shall  fail to pay all or any part of the  Liabilities  when due,  the
Guarantor  immediately  will pay to the  Lender the amount due and unpaid by the
Borrower under such  Liabilities,  in like manner as if such amount  constituted
the direct and primary obligation of the Guarantor. The Lender shall be entitled
to exercise  any rights and  remedies it may have under this  Guarantee  without
being obligated to resort first to the Collateral or to any other security or to
any  other  remedy  or  remedies  to  enforce   payment  or  collection  of  the
Liabilities,  and may pursue all or any of its  remedies at one or at  different
times. With respect to the Claims, the Guarantor hereby irrevocably subordinates
the  Claims  to the prior  payment  in full of all of the  Liabilities,  and the
Guarantor agrees that the Lender shall have the full right in its own name or in
the name of the  Guarantor to collect and enforce  such Claims by legal  action,
proof  of debt in  bankruptcy  or  other  liquidation  proceedings,  vote in any
proceeding for the arrangement of debts at any time proposed, or otherwise,  the
Lender  and  each  of  its  officers   being  hereby   irrevocably   constituted
attorneys-in-fact  for the Guarantor for the purpose of such enforcement and for
the purpose of endorsing in the name of the  Guarantor  any  instrument  for the
payment of money. In furtherance of such subordination,  but without limiting or
reducing the amount of the Guarantor's  obligations  under this  Guarantee,  the
Guarantor  will  receive  as  trustee  for the Lender and will pay to the Lender
forthwith upon receipt  thereof any amounts which the Guarantor may receive from
the Borrower on account of the Claims.  The Guarantor  agrees that no payment on
account  of such  Claims or any  security  interest  therein  shall be  created,
received,  accepted or retained nor shall any financing  statement be filed with
respect  thereto by the  Guarantor  unless and until the  Borrower  has paid and
satisfied  in full all the  Liabilities.  The  Lender is hereby  authorized  and
empowered, upon the occurrence of any Event of Default, to appropriate and apply
to the payment and extinguishment of the Liabilities of the Borrower any and all
Claims and payments  thereof,  without demand,  advertisement or notice,  all of
which are  hereby  expressly  waived,  and such  application  shall not limit or
reduce the amount of the Guarantor's obligations under this Guarantee.

               In the event  that the  Lender  shall  receive  any  payments  on
account of any of the Liabilities,  whether directly or indirectly, and it shall
subsequently be determined that such payments were for any reason improper, or a
claim  shall be made  against the Lender  that the same were  improper,  and the
Lender either  voluntarily or pursuant to court order shall return the same, the
Guarantor  shall be liable,  with the same  effect as if the said  payments  had
never been paid to, or received by, the Lender, for the amount of such repaid or
returned  payments,  notwithstanding  the fact  that  such  repaid  or  returned
payments may theretofore have been credited on account of the Liabilities or any
of them. If the Guarantee  hereunder with respect to any Guarantor would be held
or determined to be void,  invalid or  unenforceable on account of the amount of
such Guarantor's aggregate liability under this Guarantee,  then notwithstanding
any other provision of this Guarantee to the contrary,  the maximum liability of
such Guarantor hereunder shall be automatically limited and reduced to an amount
equal to the maximum amount that would not render this Guarantee with respect to
such   Guarantor   void,   invalid   or   unenforceable.   The   invalidity   or
unenforceability  of any  portion of this  Guarantee  shall in no way affect the
validity or enforceability of any other portion of this Guarantee.

               The Guarantor  hereby  irrevocably  waives for the benefit of the
Borrower and the Lender, and agrees that it will not exercise,  any rights which
it may have or  acquire  by way of  subrogation  under  this  Guarantee,  by any
payment made  hereunder or otherwise,  until all of the  Liabilities  shall have
been paid in full.  If any amount  shall be paid to the  Guarantor on account of
such subrogation  rights at any time when any of the Liabilities  shall not have
been paid in full,  such  amount  shall be held in trust for the  benefit of the
Lender and shall forthwith be paid to the Lender to be credited and applied upon
the Liabilities, whether matured or unmatured, in accordance with their terms.

               The Guarantor agrees to pay all reasonable  expenses  incurred by
the  Lender  (including,  without  limitation,  reasonable  attorneys'  fees and
disbursements) in connection with enforcement of this Guarantee.

               No delay on the part of the  Lender  in  exercising  any power or
right  hereunder  shall  operate  as a waiver  thereof;  nor shall any single or
partial  exercise of any power or right hereunder or the failure to exercise the
same in any instance  preclude other or further exercise thereof or the exercise
of any other power or right;  nor shall the Lender be liable for  exercising  or
failing to exercise any such power or right;  the rights and remedies  hereunder
expressly  specified are  cumulative and not exclusive of any rights or remedies
which the  Lender or anyone on whose  behalf it has acted or shall act as herein
provided, or its or his or their transferees, may or will otherwise have.

               All  payments   hereunder   shall  be  made  without  set-off  or
counterclaim  and free and clear of, and without  deduction  for, any present or
future  withholding or other taxes or duties,  including stamp duties,  or other
charges of any nature imposed on such payments by or on behalf of any government
or any political  subdivision or agency  thereof or therein.  If any such taxes,
duties or charges are so levied or imposed on any such  payment,  the  Guarantor
will make  additional  payments in such  amounts as may be necessary so that the
net amount received by the Lender, after deduction for or on account of all such
taxes,  duties or charges,  will be equal to the amount provided for herein. The
Guarantor shall furnish promptly to the Lender official receipts  evidencing the
payment  of any such  taxes,  duties  or  charges  paid by the  Guarantor.  This
paragraph  shall not apply to taxes  imposed  on the net income of the Lender by
the  United  States  of  America,  or the  State  of New  York or any  political
subdivision  thereof. In the event that the Lender actually receives a refund of
or  credit  for taxes in  respect  of which the  Guarantor  has made  additional
payments  to  the  Lender  under  this  paragraph  which  credit  or  refund  is
identifiable  by the  Lender as being a result of taxes in  respect of which the
Guarantor has made additional  payments to the Lender under this paragraph,  the
Lender shall promptly  notify the Guarantor and shall remit to the Guarantor the
amount of such refund or credit  (without  interest) up to but not exceeding the
lesser of (a) such additional  payment or payments by the Guarantor,  or (b) the
actual  after-tax  benefit to the Lender resulting from such refund or credit as
conclusively  determined  by the  Lender.  Nothing  contained  herein  shall (i)
obligate  the  Lender to apply for such a refund or credit or (b)  afford to the
Guarantor  any right to inspect or review any  financial  or tax  records of the
Lender.

               The term "the Lender" as used throughout this instrument shall be
deemed to include Dime Commercial  Corp.,  all of its branches and  departments,
and any individual,  partnership or corporation  acting as its nominee or agent,
and any  corporation  the  majority  of the  voting  stock  of which is owned or
controlled, directly or indirectly, by Dime Commercial Corp. or The Dime Savings
Bank of New York,  FSB. The term  "Borrower" as used  throughout this instrument
shall include the individual or individuals,  association,  partnership, limited
liability  company,  or corporations  named herein as the Borrower,  and (a) any
successor,  individual  or  individuals,  association,  partnership,  or limited
liability  company  or  corporations  to which all or  substantially  all of the
business or assets of the Borrower shall have been transferred,  (b) in the case
of a Borrower  which is a  partnership  or limited  liability  company,  any new
partnership or limited liability company which shall have been created by reason
of the admission of any new partner or partners or new member or members therein
or the  dissolution  of the existing  partnership  by the death,  resignation or
other  withdrawal  of any  partner or member,  and (c) in the case of a Borrower
which is a corporation,  any other  corporation  into or with which the Borrower
shall have been merged, consolidated, reorganized, purchased or absorbed.

               This Guarantee shall, without further reference,  pass to and may
be relied on and enforced by any  successor  or assignee of the Lender,  and any
transferee  or  subsequent  holder of any of the  Liabilities,  and the Borrower
and/or the  Guarantor  will not assert any claims it may have against the Lender
against  any such  assignee,  successor,  transferee,  or any  other  subsequent
holder.  Subject to the fifth paragraph in this  Guarantee,  this Guarantee is a
continuing  guarantee,  and is to remain  in full  force  and  effect  until the
termination of the Commitment (as defined in the Loan Agreement) and the payment
of all  Liabilities  of the  Borrower  to the Lender,  whether  now  existing or
hereafter  incurred,  notwithstanding  the  appointment of a receiver of, or the
dissolution of, and/or any other change in, or with respect to, the Borrower. No
change,  modification,  waiver,  or  discharge,  in whole  or in  part,  of this
Guarantee  shall be effective  unless in writing and signed by the party against
whom such change, modification, waiver, or discharge is sought to be enforced.

               THIS GUARANTEE SHALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED
BY THE LAW OF, THE STATE OF NEW YORK,  WITHOUT REGARD TO PRINCIPLES OF CONFLICTS
OF LAWS. THE GUARANTOR HEREBY AGREES THAT ANY LEGAL ACTION OR PROCEEDING AGAINST
THE GUARANTOR WITH RESPECT TO THIS GUARANTEE MAY BE BROUGHT IN THE COURTS OF THE
STATE OF NEW YORK IN THE CITY OF NEW YORK OR OF THE UNITED STATES OF AMERICA FOR
THE SOUTHERN DISTRICT OF NEW YORK AS THE LENDER MAY ELECT, AND, BY EXECUTION AND
DELIVERY  HEREOF,  THE  GUARANTOR  ACCEPTS  AND  CONSENTS  TO, FOR ITSELF AND IN
RESPECT OF ITS PROPERTY, GENERALLY AND UNCONDITIONALLY,  THE JURISDICTION OF THE
AFORESAID COURTS AND AGREES THAT SUCH  JURISDICTION  SHALL BE EXCLUSIVE,  UNLESS
WAIVED BY THE LENDER IN WRITING, WITH RESPECT TO ANY CLAIM, ACTION OR PROCEEDING
BROUGHT BY IT AGAINST THE LENDER AND ANY  QUESTIONS  RELATING TO USURY.  NOTHING
HEREIN  SHALL  LIMIT THE RIGHT OF THE LENDER TO BRING  PROCEEDINGS  AGAINST  THE
GUARANTOR IN ANY OTHER JURISDICTION.  THE GUARANTOR  IRREVOCABLY CONSENTS TO THE
SERVICE OF PROCESS IN ANY SUCH LEGAL ACTION OR PROCEEDING  BY PERSONAL  DELIVERY
OR BY THE MAILING THEREOF BY THE LENDER BY REGISTERED OR CERTIFIED MAIL,  RETURN
RECEIPT REQUESTED,  POSTAGE PREPAID,  TO THE ADDRESS SPECIFIED IN THE RECORDS OF
THE LENDER,  SUCH SERVICE OF PROCESS BY MAIL TO BE DEEMED EFFECTIVE ON THE FIFTH
DAY FOLLOWING  SUCH MAILING.  THE GUARANTOR  AGREES THAT A FINAL JUDGMENT IN ANY
SUCH LEGAL ACTION OR PROCEEDING  SHALL BE CONCLUSIVE  AND MAY BE ENFORCED IN ANY
MANNER PROVIDED BY LAW.

               The  Guarantor  has  made  an  independent  investigation  of the
Borrower and of the financial condition of the Borrower. The Lender has not made
and does not make any  representations  as to the  income,  expense,  operation,
finances or any other matter or thing  affecting the Borrower nor has the Lender
made any  representation  as to the amount or nature of the  Liabilities  of the
Borrower to which this Guarantee  applies as specifically  herein set forth, nor
has  the  Lender  or  any  officer,  agent  or  employee  of the  Lender  or any
representative  thereof,  made any other  oral  representations,  agreements  or
commitments  of  any  kind  or  nature,   and  the  Guarantor  hereby  expressly
acknowledges that no such  representations have been made. It is agreed that any
and all understandings and agreements heretofore made between the parties hereto
are  merged  in this  Guarantee,  and  that  this  Guarantee  alone,  fully  and
completely, expresses the understanding of such parties.

               If for the  purposes  of  obtaining  judgment  in any court it is
necessary to convert a sum due hereunder in U.S. Dollars into another  currency,
the parties hereto agree, to the fullest extent that they may effectively do so,
that the rate of exchange used shall be that at which in accordance  with normal
banking  procedures  the Lender  could  purchase  U.S.  Dollars  with such other
currency in New York City on the business day (being any day on which commercial
banks are open for domestic and international  business  (including  dealings in
foreign  exchange) in New York City)  preceding  that on which final judgment is
given.  The obligation of the Guarantor in respect of any sum due from it to the
Lender  hereunder shall,  notwithstanding  any judgment in a currency other than
U.S.  Dollars,  be  discharged  only  to the  extent  that on the  business  day
following  receipt by the Lender of any sum  adjudged to be so due in such other
currency the Lender may in accordance  with normal banking  procedures  purchase
U.S. Dollars with such other currency; if the U.S. Dollars so purchased are less
than the sum originally due to the Lender in U.S. Dollars, the Guarantor agrees,
as a separate obligation and notwithstanding any such judgment, to indemnify the
Lender  against such loss, and if the U.S.  Dollars so purchased  exceed the sum
originally due to the Lender in U.S. Dollars,  the Lender agrees to remit to the
Guarantor such excess.

               NO CLAIM MAY BE MADE BY ANY  GUARANTOR  AGAINST THE LENDER OR THE
AFFILIATES,  DIRECTORS,  OFFICERS, EMPLOYEES,  ATTORNEYS OR AGENTS OF THE LENDER
FOR ANY SPECIAL,  INDIRECT OR  CONSEQUENTIAL  DAMAGES OR, TO THE FULLEST  EXTENT
PERMITTED BY LAW,  FOR ANY PUNITIVE  DAMAGES IN RESPECT OF ANY CLAIM OR CAUSE OF
ACTION  (WHETHER  BASED ON CONTRACT,  TORT,  STATUTORY  LIABILITY,  OR ANY OTHER
GROUND) BASED ON, ARISING OUT OF OR RELATED TO THIS  GUARANTEE,  THE LIABILITIES
OR THE TRANSACTIONS  CONTEMPLATED HEREBY OR ANY ACT, OMISSION OR EVENT OCCURRING
IN CONNECTION THEREWITH,  AND EACH GUARANTOR HEREBY WAIVES,  RELEASES AND AGREES
NEVER TO SUE UPON ANY CLAIM FOR ANY SUCH DAMAGES,  WHETHER SUCH CLAIM NOW EXISTS
OR HEREAFTER  ARISES AND WHETHER OR NOT IT IS NOW KNOWN OR SUSPECTED TO EXIST IN
ITS FAVOR.

               TO THE EXTENT  PERMITTED BY APPLICABLE LAW, THE GUARANTOR  WAIVES
THE RIGHT TO INTERPOSE  COUNTERCLAIMS,  CROSS-CLAIMS  OR SETOFFS OF ANY KIND AND
DESCRIPTION  AND ALL DEFENSES  (OTHER THAN PAYMENT IN FULL OF ALL LIABILITIES IN
CASH) IN ANY LITIGATION ARISING HEREUNDER.

               AFTER REVIEWING THIS PROVISION  SPECIFICALLY  WITH ITS RESPECTIVE
COUNSEL, EACH OF THE GUARANTOR AND THE LENDER HEREBY KNOWINGLY,  VOLUNTARILY AND
INTENTIONALLY  WAIVE ANY AND ALL RIGHTS THE GUARANTOR AND THE LENDER MAY HAVE TO
A TRIAL BY JURY IN RESPECT OF ANY LITIGATION BASED ON, OR ARISING OUT OF, UNDER,
OR IN  CONNECTION  WITH,  THIS  GUARANTEE  OR ANY COURSE OF  CONDUCT,  COURSE OF
DEALING, STATEMENTS (WHETHER VERBAL OR WRITTEN) OR ACTIONS OF THE GUARANTOR, THE
BORROWER OR THE LENDER.  THIS PROVISION IS A MATERIAL  INDUCEMENT FOR THE LENDER
TO EXTEND CREDIT .

               IN WITNESS WHEREOF,  this Guarantee has been duly executed by the
undersigned on the _________ day of June, 1999.

                                                       GUARANTORS:


                                                       GP STRATEGIES CORPORATION


                                                       By: _____________________

                                                       Name:
                                                       Title:


                                                       By: _____________________

                                                       Name:
                                                       Title:



<TABLE> <S> <C>


<ARTICLE>                     5
<CIK>                        0000944480
<NAME>                       GSE SYSTEMS, INC.
<MULTIPLIER>                                   1,000

<S>                                            <C>
<PERIOD-TYPE>                                  3-MOS
<FISCAL-YEAR-END>                              DEC-31-1999
<PERIOD-START>                                 JAN-01-1999
<PERIOD-END>                                   JUN-30-1999
<CASH>                                          3,425
<SECURITIES>                                        0
<RECEIVABLES>                                  19,072
<ALLOWANCES>                                     (326)
<INVENTORY>                                     3,208
<CURRENT-ASSETS>                               28,338
<PP&E>                                         11,500
<DEPRECIATION>                                 (7,968)
<TOTAL-ASSETS>                                 45,452
<CURRENT-LIABILITIES>                          23,347
<BONDS>                                             0
                               0
                                         0
<COMMON>                                           50
<OTHER-SE>                                    (18,713)
<TOTAL-LIABILITY-AND-EQUITY>                   45,452
<SALES>                                        17,987
<TOTAL-REVENUES>                               17,987
<CGS>                                          10,483
<TOTAL-COSTS>                                  10,483
<OTHER-EXPENSES>                                6,307
<LOSS-PROVISION>                                    0
<INTEREST-EXPENSE>                                 16
<INCOME-PRETAX>                                 1,200
<INCOME-TAX>                                      457
<INCOME-CONTINUING>                               743
<DISCONTINUED>                                      0
<EXTRAORDINARY>                                     0
<CHANGES>                                           0
<NET-INCOME>                                      743
<EPS-BASIC>                                    0.15
<EPS-DILUTED>                                    0.14


</TABLE>


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