MITEL CORP
8-K, 1998-02-27
TELEPHONE & TELEGRAPH APPARATUS
Previous: THERMODYNETICS INC, 10QSB, 1998-02-27
Next: PRUDENTIAL UTILITY FUND INC, NSAR-B, 1998-02-27




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

                                    FORM 8-K

                                 CURRENT REPORT


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


       Date of Report (Date of earliest event reported) FEBRUARY 12, 1998


                                MITEL CORPORATION
                    ----------------------------------------
             (Exact name of registrant as specified in its charter)


           CANADA                          1-8139                    NONE
- -------------------------------    ---------------------     -------------------
(State or other jurisdiction of    (Commission File No.)      (I.R.S. Employer
 incorporation or organization)                              Identification No.)


               350 Legget Drive
               P.O. Box 13089
           Kanata, Ontario, Canada                       K2K 1X3
           ------------------------                   -------------
            (Address of principal                     (Postal Code)
             executive offices)


       Registrant's telephone number, including area code: (613) 592-2122


                 ----------------------------------------------
          (Former name or former address, if changed since last report)



<PAGE>

Item 2. Acquisition or Disposition of Assets

     (All amounts reported are in millions of United States dollars, unless
otherwise noted).

     On February 12, 1998, Mitel Corporation (the "Company") and certain of its
wholly owned subsidiaries acquired 100 percent of the capital stock of four
affiliated entities which, together with their respective subsidiaries, comprise
the Plessey Semiconductors Group ("Plessey") from The General Electric Company,
p.l.c. ("GEC"), for a total consideration of $225.0 in cash. The acquisition was
financed with $310.0 of senior secured credit facilities consisting of: (i) 5
year Tranche A term loans amounting to $85.0; (ii) a 6 year Amortization
Extended Term Loan (AXELsm*) Series B amounting to $150.0; and (iii) a 5 year
revolving credit facility amounting to $75.0 that was unused at closing and
remains available for general corporate purposes. The credit facilities were
underwritten by Goldman Sachs Credit Partners L.P., as arranger and syndication
agent. Canadian Imperial Bank of Commerce is the administrative agent for the
credit facilities.

     The acquisition will be accounted for by the purchase method with Plessey's
results from operations included in the consolidated accounts of the Company
from the date of acquisition. In accordance with such method, there may be
adjustments to the actual cost of the purchase with respect to incremental costs
directly associated with the acquisition.

     Plessey, headquartered in Swindon, U.K., is an international semiconductor
manufacturer with five lines of business: applications specific integrated
circuits (ASICs), communications, media, PC systems, and power and automotive.
Its core competencies include design and technology, mixed signal expertise as
well as system integration. Plessey has capabilities in high performance CMOS
and leading edge bipolar technologies, including 0.35 micron CMOS and system
on-a-chip technologies. Plessey is ranked among the largest semiconductor
manufacturers in Europe and on a worldwide basis for mixed signal ASICs. Plessey
has three principal manufacturing and engineering facilities in the United
Kingdom, including a six inch bipolar fab at Swindon (7,086 square meters), an
eight inch CMOS fab at Plymouth (6,360 square meters), and a facility at Lincoln
(5,000 square meters) which manufactures, assembles and tests integrated circuit
components for power, automotive and communications applications. The Company
presently intends to use the plant, equipment and other physical property
acquired from GEC for the same business purposes as they were used prior to
consummation of the transaction. Plessey employed 2,275 people at January 31,
1998.

     Subsequent to February 12, 1998, the name "Plessey" will no longer be used
by the acquired businesses. The principal U.K. entity acquired, Plessey
Semiconductors Limited, will operate as Mitel Semiconductor Limited, a
subsidiary of Mitel Telecom Limited. GEC Plessey Semiconductors Inc. will
operate as Mitel Semiconductor Americas Inc., a subsidiary of Mitel, Inc.

                                      - 2 -

<PAGE>

Item 7. Financial Statements and Exhibits

     Due to the difficulty in preparing the required financial information in a
timely manner, the registrant is exercising its right to a 60-day extension from
the due date (February 27, 1998) of this Form 8-K in order to file the Item 7
(a) and (b) financial statement information, pursuant to the rules and
regulations promulgated by the Securities and Exchange Commission. The Company
expects that the financial information required under Item 7 (a) and (b) will be
filed under cover of Form 8- K/A on or before April 28, 1998.

     (a)  Financial Statements of Business Acquired.

          (1) Combined Balance Sheets for the four affiliated entities
          acquired which, together with their respective subsidiaries, comprise
          the Plessey Semiconductors Group ("Plessey"), as of March 31, 1997,
          1996 and 1995 and the related Combined Statements of Income and
          Retained Earnings and Cash Flows for each of the three years in the
          period ended March 31, 1997 and Independent Auditors' Report. To be
          filed no later than April 28, 1998.

          (2) Consent of Independent Auditors. To be filed no later than April
          28, 1998.

     (b)  Pro Forma Financial Information.

          (1) Mitel Corporation Pro Forma Condensed Consolidated Balance Sheet
          (unaudited) as at December 26 1997. To be filed no later than April
          28, 1998.

          (2) Mitel Corporation Pro Forma Condensed Consolidated Statement of
          Income (unaudited) for the year ended March 28, 1997. To be filed no
          later than April 28, 1998.

          (3) Mitel Corporation Pro Forma Condensed Consolidated Statement of
          Income (unaudited) for the nine months ended December 26, 1997. To be
          filed no later than April 28, 1998.

          (4) Notes to Pro Forma Condensed Consolidated Financial Statements
          (unaudited). To be filed no later than April 28, 1998.

     (c)  Exhibits.

          2.1 Share Sale and Purchase Agreement, dated February 12, 1998,
          between The General Electric Company p.l.c., London, England and Mitel
          Telecom Limited, Portskewett, Gwent, Wales and Mitel Corporation,
          Kanata, Ontario, Canada.

                                      - 3 -

<PAGE>

          2.2 Deed of Tax Covenant, dated February 12, 1998, between The General
          Electric Company, p.l.c. and Mitel Telecom Limited.

          2.3 Environmental Deed, dated February 12, 1998, between The General
          Electric Company, p.l.c. and Mitel Telecom Limited.

          10.1 Credit Agreement, dated as of February 12, 1998, between Goldman
          Sachs Credit Partners L.P., as advisor, arranger and syndication
          agent, Canadian Imperial Bank of Commerce, as administrative agent,
          the Lenders listed therein, and Mitel Corporation, as borrower.


                                    SIGNATURE

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


                                            MITEL CORPORATION
                                             (Registrant)


Date: February 27, 1998                     /s/ Jean-Jacques Carrier
      -----------------                     ------------------------
                                            Jean-Jacques Carrier
                                            Vice President of Finance
                                            and Chief Financial Officer

                                      - 4 -



                                                                  Conformed Copy



                            DATED 12th February, 1998





                      THE GENERAL ELECTRIC COMPANY, P.L.C.

                                       and

                              MITEL TELECOM LIMITED

                                       and

                                MITEL CORPORATION









        ----------------------------------------------------------------

                        SHARE SALE AND PURCHASE AGREEMENT
                                  in respect of
                        the Plessey Semiconductors Group

        ----------------------------------------------------------------









                                Slaughter and May
                              35 Basinghall Street
                                 London EC2V 5DB
                                    (NPB/RRO)


<PAGE>

                                    Contents

                                                                            Page
                                                                            ----

1. INTERPRETATION                                                              1

2. SALE AND PURCHASE OF THE SHARES                                             1

3. CONSIDERATION                                                               2

4. COMPLETION                                                                 10

5. GEC'S WARRANTIES AND UNDERTAKINGS                                          11

6. RESTRICTIONS ON GEC GROUP                                                  14

7. FURTHER WARRANTIES AND UNDERTAKINGS                                        16

8. PURCHASER'S REMEDIES AND GEC'S LIMITATIONS ON LIABILITY                    22

9. PENSION AND OTHER ARRANGEMENTS                                             22

10. CROSS LICENCES AND ASSIGNMENTS                                            22

11. REMEDIES AND WAIVERS                                                      23

12. ASSIGNMENT                                                                23

13. FURTHER ASSURANCE                                                         25

14. ENTIRE AGREEMENT                                                          25

15. NOTICES                                                                   26

16. ANNOUNCEMENTS                                                             27

17. RESTRICTIVE TRADE PRACTICES ACT 1976                                      27

18. COSTS AND EXPENSES                                                        27

19. COUNTERPARTS                                                              28

20. TIME OF ESSENCE                                                           28


<PAGE>

21. EFFECT OF COMPLETION                                                      28

22. INVALIDITY                                                                28

23. GOVERNING LAW                                                             28

24. JURISDICTION                                                              28

25. AGENT FOR SERVICE                                                         29

SCHEDULE 1: DEFINITIONS                                                       30

SCHEDULE 2: COMPLETION ARRANGEMENTS                                           41

SCHEDULE 3: THE WARRANTIES                                                    45

SCHEDULE 4: LIMITATIONS ON GEC'S LIABILITY UNDER THE WARRANTIES               72

SCHEDULE 5: PENSION ARRANGEMENTS  PART 1 - GEC SCHEME                         81

PART 2 - U.S. BENEFITS ARRANGEMENTS                                           97

SCHEDULE 6: TAX COVENANT                                                     100

SCHEDULE 7: PART A - BASIC INFORMATION ABOUT THE COMPANIES                   101

PART B - BASIC INFORMATION ABOUT SUBSIDIARIES OF THE COMPANIES               105

SCHEDULE 8 PROPERTY SCHEDULE                                                 114



SCHEDULE 9 PART A GEC PLESSEY CONDUCTORS GROUP PRO FORMA
AGGREGATED BALANCE SHEET AS AT 31 DECEMBER 1997                              124

PART B GPS SWINDON OPERATION                                                 125


<PAGE>

THIS AGREEMENT (this "Agreement") is made on 12th February, 1998

BETWEEN:-

1.   THE GENERAL ELECTRIC COMPANY, p.l.c. (registered in England No. 67307)
     having its registered office at 1 Stanhope Gate, London W1A 1EH ("GEC")

     AND

2.   MITEL TELECOM LIMITED, (registered in England and Wales No. 1309629),
     having its registered office at Portskewett, Gwent NP6 4YR (the
     "Purchaser")

     AND

3.   MITEL CORPORATION, a Canadian corporation, having its principal place of
     business at 350 Legget Drive, Kanata, Ontario, Canada K2K IX3 (the
     "Guarantor")

WHEREAS:-

(A)  GEC has agreed to sell and transfer, or procure the sale and transfer of,
     the Shares, and the Purchaser has agreed to purchase them, on the terms of
     this Agreement; and

(B)  The Guarantor has agreed to guarantee the Purchaser's obligations on the
     terms of this Agreement.

IT IS AGREED AS FOLLOWS:-

1.   Interpretation

1.1  The Schedules form part of this Agreement and shall have the same force and
     effect as if expressly set out in the body of this Agreement and any
     reference to this Agreement shall include the Schedules.

1.2  Certain words and expressions used in this Agreement are defined in
     Schedule 1.

2.   Sale and Purchase of the Shares

     GEC shall sell or procure the sale of the Shares with full title guarantee
     and the Purchaser shall purchase or procure the purchase of the Shares. The
     Shares shall be free from all claims, liens, charges, encumbrances and
     equities whatsoever and shall be sold with all rights attached or accruing
     to them at Completion including, without limitation, the right to receive
     all dividends, distributions or any return of capital hereafter declared,
     paid or made on or after Completion.


<PAGE>

                                       2

3.   Consideration

3.1  The total consideration for the sale of the Shares shall be the payment by
     the Purchaser to GEC of the Purchase Price.

3.2  The Purchase Price shall be apportioned as follows:-

     (A)  US$185,299,835 for the Shares in Plessey;

     (B)  US$7,500,000 for the Shares in Plessey Inc;

     (C)  US$165 for the Shares in AEI; and

     (D)  US$32,200,000 for the Shares in Marconi.

3.3  (A)  The Guarantor unconditionally and irrevocably guarantees to GEC the
          due and punctual discharge and performance by the Purchaser of its
          obligations pursuant to the Sale Documents including particularly (but
          without limitation) the payment by the Purchaser of the Purchase Price
          at Completion and agrees that if at any time or from time to time any
          amount payable by the Purchaser or other obligation of the Purchaser
          is not paid or performed in full on the due date therefor, the
          Guarantor will promptly after being given not less than three Business
          Days' notice of the failure of the Purchaser to make such payment or
          perform such other obligation (and if such failure is not remedied by
          the Purchaser in the interim) unconditionally pay or perform or
          procure the payment or performance of the relevant amount or
          obligation to GEC;

     (B)  The Guarantor shall be liable under paragraph (A) above as if it were
          a primary obligor of the Purchaser's obligations contained in the Sale
          Documents (the "Guaranteed Obligations");

     (C)  The obligations of the Guarantor under paragraphs (A) and (B) above:-

          (i)  shall be continuing obligations and shall not be satisfied,
               discharged or affected by any intermediate payment or settlement
               of account or any change in the constitution or control of, or
               the insolvency of, or any liquidation, winding-up or analogous
               proceedings relating to, the Purchaser or any change in the terms
               or nature of the Guaranteed Obligations; and

          (ii) shall not be discharged, prejudiced, lessened, affected or
               impaired by any act, omission or circumstance whatsoever which
               but for this provision might operate to release or exonerate the
               Purchaser from all or any part of the Guaranteed Obligations;


<PAGE>

                                       3

     (D)  As a separate and independent stipulation the Guarantor agrees that if
          any of the Guaranteed Obligations are not enforceable against or
          recoverable from the Purchaser by reason of any legal limitation,
          disability or incapacity or any fact or circumstances or otherwise
          (together "Factors"), they shall nevertheless be enforceable against
          and recoverable from the Guarantor as though the same had been
          incurred by the Guarantor and the Guarantor were the sole or principal
          obligor in respect thereof and shall be performed or paid by the
          Guarantor on demand provided that the foregoing provisions of this
          paragraph (D) shall not be construed so as to impose on the Guarantor
          any liabilities or obligations in excess of those the Purchaser would
          have been under had such Factors not pertained;

     (E)  This guarantee shall constitute primary obligations of the Guarantor
          and GEC shall not be obliged to make any demand on or enforce any
          rights against the Purchaser or any other person before being entitled
          to enforce its rights against the Guarantor under this clause 3.3.

3.4  (A)  The Purchaser and GEC agree that Completion Balance Sheets and an
          Aggregated Completion Balance Sheet shall be produced to identify the
          results of trading between 31st December, 1997 and the Completion
          Date, to determine the Closing Net Worth and the amount of the
          Adjustment (if any) and agree in the following terms to produce such
          balance sheets. To this end the Purchaser shall procure that as soon
          as possible, and in any event within 60 days of the Completion Date,
          drafts of the Completion Balance Sheets are prepared by the management
          of the Group in accordance with clause 3.5 and delivered to GEC. GEC,
          the Purchaser and the Group management shall discuss any issues
          arising in the preparation of the draft Completion Balance Sheets
          during their preparation.

     (B)  The Purchaser shall procure that the Group management shall prepare a
          draft Aggregated Completion Balance Sheet showing the draft Closing
          Net Worth of the Group as at the Completion Date. GEC, the Purchaser
          and the Group management shall discuss any issues arising in the
          preparation of the draft Aggregated Completion Balance Sheet during
          its preparation. The draft Aggregated Completion Balance Sheet shall
          be compiled from the draft Completion Balance Sheets in the same
          manner as the Proforma Aggregated Balance Sheet as at 31st December,
          1997 which is set out in Part A of Schedule 9 but subject to the
          following:

          (i)  the Completion Balance Sheets of the non-UK Group Companies shall
               be translated from the local currencies into pounds sterling at
               the relevant Exchange Rate; and

          (ii) no adjustment will be required in respect of the Restructuring
               Plan as it will have been completed and the actual impact shall
               be recorded in the books of the relevant companies before
               Completion.



<PAGE>

                                       4

     (C)  The Purchaser shall deliver to GEC as soon as possible and in any
          event within 60 days after the Completion Date the draft Aggregated
          Completion Balance Sheet showing the draft Closing Net Worth.

     (D)  GEC and GEC's Accountants shall be entitled to review the documents
          delivered to GEC under clauses 3.4(A) and (C) and to conduct an
          investigation of the draft Completion Balance Sheets and the draft
          Aggregated Completion Balance Sheet showing the draft Closing Net
          Worth during the 60 day period following receipt of the draft
          Completion Balance Sheets and the draft Aggregated Completion Balance
          Sheet (provided that in the event that those documents are not
          delivered on the same day such period shall start from the date on
          which the last of such documents is delivered to GEC). At or before
          the end of such 60 day period GEC shall either:

          (i)  confirm that no adjustments are proposed by GEC to the draft
               Completion Balance Sheets and the draft Aggregated Completion
               Balance Sheet showing the draft Closing Net Worth in which case
               (or if no such adjustments are proposed by GEC within the period
               referred to above) the draft Completion Balance Sheets and the
               draft Aggregated Completion Balance Sheet shall become final and
               the draft Closing Net Worth shown by the draft Aggregated
               Completion Balance Sheet shall then constitute the Closing Net
               Worth; or

          (ii) notify the Purchaser of the adjustments that GEC may seek
               including (without limitation) those in respect of the Overriding
               Objective (together the "Proposed Adjustments") that GEC believes
               necessary to the draft Completion Balance Sheets and the draft
               Aggregated Completion Balance Sheets.

     (E)  The Purchaser's Accountants shall review the Proposed Adjustments (if
          any). In performing this review the Purchaser's Accountants shall have
          reasonable access to the working papers of GEC and GEC's Accountants
          prepared for the purpose of the investigation referred to in clause
          3.4(D) above and also to the working papers of GEC's Accountants
          prepared for the purposes of the audit of the Accounts. Following such
          review and in any event not less than 15 days after receipt of the
          Proposed Adjustments, the Purchaser will notify GEC which, if any, of
          the Proposed Adjustments it accepts and both parties undertake to
          attempt to reach agreement on the remainder of the Proposed
          Adjustments. The Purchaser and GEC agree that the Proposed Adjustments
          shall be considered in the context of the terms of clauses 3.4 and 3.5
          including the Overriding Objective.

          If agreement is reached, the Purchaser shall procure that the Group
          management shall make the agreed adjustments to the draft Completion
          Balance Sheets and the draft Aggregated Completion Balance Sheet and
          these shall become final and the draft Closing Net Worth shown by the
          draft Aggregated Completion Balance Sheet shall then constitute the
          Closing Net


<PAGE>
                                       5


          Worth providing GEC and the Purchaser agree that the agreed
          adjustments have been reflected properly therein.

          If, or to the extent that, any of the Proposed Adjustments are not
          accepted by the Purchaser and are not withdrawn by GEC within 30 days
          following notification by GEC pursuant to clause 3.4(D)(ii) above such
          adjustments only (the "Unresolved Adjustments") shall be referred for
          final binding determination to such firm of accountants as GEC and the
          Purchaser may agree or in the absence of agreement within 14 days, as
          may be selected at the request of either party by the President of the
          Institute of Chartered Accountants in England and Wales, with the
          instructions that the firm so selected (either by the parties or
          otherwise) shall act as expert (the "Expert") and not as arbitrator
          and shall be instructed to make a decision on the dispute within 20
          days of being instructed or such longer reasonable period as the
          Expert may determine. The Unresolved Adjustments will be determined by
          the Expert so selected insofar as they relate to the draft Completion
          Balance Sheets and the draft Aggregated Completion Balance Sheet
          showing the draft Closing Net Worth and such adjustments as are
          required to be made as a result of the Expert's determination of the
          Unresolved Adjustments shall be made by the parties in the calculation
          of the Closing Net Worth. Each party shall provide or procure the
          provision to the Expert of such information as the Expert may
          reasonably require. The fees of the Expert shall be shared equally
          between GEC and the Purchaser. Absent fraud or manifest error, the
          decision of the Expert so selected will be binding on the parties.

     (F)  If the Closing Net Worth is equal to the Agreed Amount then the
          Adjustment will equal zero. If the Closing Net Worth is greater than
          the Agreed Amount, the Adjustment will also be zero. If the Closing
          Net Worth is less than the Agreed Amount, the Adjustment will be an
          amount equal to the amount by which the Closing Net Worth is less than
          the Agreed Amount.

     (G)  Subject to paragraph (I), within seven Business Days of the agreement
          or determination of the Closing Net Worth in accordance with clauses
          3.4(A)-(F), if the Adjustment is an amount greater than (pound)5
          million, GEC shall pay to the Purchaser an amount equal to the
          difference between the Adjustment and (pound)5 million.

     (H)  Subject to paragraph (I), in addition to any payment under clause
          3.4(G) GEC shall pay, together with the sum to be paid thereunder, a
          further amount equivalent to interest thereon at a rate equal to the
          sterling base rate from time to time of the National Westminster Bank
          Plc, as if accrued from day to day from the Completion Date up to (but
          not including) the date of the actual payment. All payments shall be
          made by way of adjustment to the Purchase Price and apportioned to the
          Companies to which they relate or in the event that an overall amount
          is agreed the Adjustment shall be attributed solely to the Shares in
          Plessey.


<PAGE>
                                       6


     (I)  Any payment under this clause 3.4 shall be limited to the amount of
          the Purchase Price.

3.5  (A)  The draft Completion Balance Sheets shall be prepared in accordance
          with the same accounting policies, principles, bases and methods and
          the same level of prudence as actually adopted in the preparation by
          the Group of the March 1997 management accounts (a copy of which is
          included at item 4 of section 1.4 of the Schedule to the Disclosure
          Letter) provided however that for the purpose of the preparation of
          the draft Completion Balance Sheets the following principles shall be
          applied:

          (i)  No account shall be taken of events occurring after the date of
               delivery of the draft Completion Balance Sheets and the draft
               Aggregated Completion Balance Sheet (under clauses 3.4(A) and
               (C));

          (ii) Insurance prepayments in respect of the Group (or any Group
               Company) at the Completion Date in respect of insurance cover
               that is cancelled by GEC with effect from Completion or
               thereafter will be written off in the Completion Balance Sheets;

         (iii) No account shall be taken of (a) any change of control of the
               Group (or any Group Company) contemplated by this Agreement
               (including its effect on contracts of the Group) save in respect
               of paragraphs (ii) above and (v) below and the Restructuring Plan
               or (b) any proposals or arrangements (actual or proposed) in
               connection with the financing of the Purchaser's acquisition of
               the Shares (including granting any security in respect of the
               Shares or the assets of any Group Company) or (c) any acts or
               proposals of the Purchaser in relation to any Group Company's
               dealings with its customers or suppliers, the Group's sales or
               for which a provision would otherwise be made;

          (iv) No account shall be taken of the costs of GEC or the Purchaser in
               relation to this Agreement;

          (v)  (a)  The following accounting entry reflected in the Accounts of
                    Plessey but not in the March 1997 management accounts shall
                    be reflected in the draft Completion Balance Sheet of
                    Plessey:

                                                                     (pound)000s

               Increase tax charge to profit and loss account for year
               ended 31st March, 1997                                      1,473
               Increase corporation tax recoverable (balance sheet)          146
               Increase in deferred tax liability provision
               (balance sheet)                                             1,619

               (b)  Provisions for Taxation in respect of those issues dealt
                    with in the Tax Covenant shall remain at the amounts
                    included in the December 1997 management accounts except for
                    adjustments


<PAGE>
                                       7


                    in respect of cash movements since 31st December, 1997 and
                    no other provisions shall be made in respect of such issues.

               (c)  No Taxation shall be provided or credited in the draft
                    Completion Balance Sheets on the results other than the
                    above and the charge or credit for tax at 35 per cent. on
                    the difference between the net worth as shown in the
                    Proforma Aggregated Balance Sheet as at 31st December, 1997
                    (namely the Agreed Amount) and the Closing Net Worth before
                    taking account of such tax;

          (vi) Depreciation will be provided on fixed assets as in the March
               1997 management accounts but on a time pro-rata basis from 1st
               April, 1997 to the Completion Date. For the avoidance of doubt in
               respect of Fab 8 plant and equipment (which amounted at cost to
               (pound)68,733,8l6 as at 1st July, 1997) the date from which
               depreciation shall be charged was 1st July, 1997 and in respect
               of Fab 6 plant and equipment (which amounted at cost to
               (pound)14,602,588 at 2nd January, 1998) this date was 2nd
               January, 1998.

               No other provisions shall be made against fixed assets and no
               amounts shall be written off or provided against fixed assets
               except for the fair value provision against the Scotts Valley
               lease obligations described in Part III of Schedule 8 which
               amounted to US$2,990,725 as at the Accounts Date and from which
               will be applied US$701,600 in the current financial year
               pro-rated on a time basis from the Accounts Date until the
               Completion Date;

         (vii) Purchased material shall be valued at the relevant standard cost
               adopted with effect from 1st April, 1997 for direct materials and
               at the latest moving average cost price for all local plant stock
               (for example- equipment spares, gases, chemicals, quartzwar and
               consumables). Labour is charged to work in progress based on
               direct labour hours at rates adopted from 1st April, 1997.
               Overheads are charged to work in progress on machine hour rates
               adopted from 1st April, 1997. Other standards which shall be used
               in the evaluation of inventory, for example for production yield
               shall be those adopted as at 1st April, 1997. A copy of the
               relevant standard costs and rates is included in Part B of
               Schedule 9. For the avoidance of doubt the method adopted for the
               allocation of variances to stock shall be the same as that
               adopted at the Accounts Date;

        (viii) Each stock line of raw material stock including consumables as
               at the Completion Date which:

               (a)  has not moved in the 24 month period immediately preceding
                    the Completion Date; or


<PAGE>
                                       8

               (b)  is in excess of the amount required to fulfil orders,

               shall be compared to the forecast usage of such stock which is
               included in the business unit forecast set out at item 19 of
               Section 1.11 of the Schedule to the Disclosure Letter and to the
               extent that the stock balance as at the Completion Date exceeds
               such forecast usage, the excess shall be provided in full.

               Each stock line of work in progress and finished goods as at the
               Completion Date:

               (a)  the date of production of which was more than 24 months
                    before the Completion Date; or

               (b)  which is in excess of the amount required to fulfil orders,

               shall be compared to the forecast usage of such stock which is
               included in the Business Unit Forecast and to the extent that the
               stock balance as at the Completion Date exceeds such forecast
               usage, the excess shall be provided in full.

               The provisions for obsolescence on machine spares as at 31st
               December, 1997 shall as at Completion be reduced by the amount of
               any such provision that has been applied as a result of scrapping
               or disposal of such stock, or released because of the use of such
               stock and shall be increased by those items which have become
               obsolete between 31st December, 1997 and the Completion Date.

               In addition provision will be made on each machine spares stock
               line for any stock line to the extent of any balance in excess of
               the usage of such stock line in the 12 months immediately
               preceding the Completion Date.

               No other provisions shall be made against Group Stock.

          (ix) General warranty reserves shall be made on the basis of 1.5 per
               cent. of the value of sales during the 3 months immediately
               preceding the Completion Date and with the exception of the
               specific provisions made in addition in the December 1997
               management accounts less any payments made subsequently, no other
               warranty reserves shall be made;

          (x)  Provisions in respect of any matter that is the subject of clause
               5.4 shall remain at the amounts included in the December 1997
               management accounts less any payments made subsequently and no
               other provisions or write-offs shall be made in respect of these
               matters;


<PAGE>
                                       9


          (xi) Provision shall be made as follows for accounts receivable, other
               than those due from customers in Italy, which as at the
               Completion Date were:

                                                                Percentage of 
               Overdue by                                       amount provided
               more than 4 but less than 6 months                33%
               more than 6 but less than 12 months               60%
               more than 12 months                              100%

               and which at the Completion Date were not covered by credit
               insurance or which have not paid by the date on which Completion
               Balance Sheets are delivered to GEC. No other provisions or
               write-offs shall be made against debtors;

         (xii) There shall be no provision made against the TSMC option or any
               write-off thereof included in the December 1997 management
               accounts of Plessey at US$6.963 million or any write-off thereof.
               For the avoidance of doubt the utilisation of the option
               prepayment by the option cost of wafers (in excess of the base
               load) delivered by TSMC between 31st December, 1997 and the
               Completion Date shall be unaffected by this clause 3.4(A)(xii);

        (xiii) Consultancy costs of SAP implementation of (pound)758,208 shall
               be amortised on a time pro-rata straight line basis over the
               eight months from 1st August, 1997;

         (xiv) No additional provisions for redundancy, rationalisation or
               restructuring costs will be made other than those made in the
               December 1997 management accounts;

          (xv) The Completion Balance Sheets of the overseas subsidiaries of
               Plessey shall be translated using the relevant Exchange Rates;

         (xvi) No provision shall be made for audit fees;

        (xvii) There will be no charge to profit and loss in excess of 6 per
               cent. of pay for GEC Scheme members for pension costs in respect
               of the GEC Scheme;

       (xviii) There will be no provision or accrual for retention bonuses
               which GEC has agreed to pay in clause 9(B);

         (xix) No provision shall be made for (pound)580,000 in respect of the
               offer made on behalf of GEC in a fax dated 20th January, 1998
               from Slaughter and May to Nick Fieldhouse to procure the
               extension of the IBM cross licence to the "Election I" form; and
<PAGE>
                                       10

          (xx) No provision or write-off shall be made against the note
               receivable from Green Hills, which amounts to $7,670,507 at 31st
               December, 1997.

     (B)  For the purposes of determining the Group Stock as at the Completion
          Date, the Group shall carry out physical stock takes in accordance
          with the procedures set out in item 18 of section 1.11 of the Schedule
          to the Disclosure Letter supervised by GEC and the Purchaser for the
          purposes of determining the composition of the Group Stock in
          conjunction with GEC's Accountants and the Purchaser's Accountants.
          The composition of the stock so determined shall be used in evaluating
          the stocks for the purpose of the Completion Balance Sheets. Until an
          inventory of the Group Stock is agreed between GEC and the Purchaser,
          the Purchaser shall procure that the records of all items of the Group
          Stock used, completed and/or delivered after the Completion Date are
          maintained on the same basis as those records are currently maintained
          until the Closing Net Worth is agreed or determined in accordance with
          the provisions of clause 3.4 and shall use its reasonable endeavours
          to procure that there is no diminution on such Group Stock other than
          the disposal of trading stock in the ordinary course of trading of the
          relevant company.

3.6  The Purchaser shall give and shall procure that each Group Company shall
     give to GEC, GEC's representatives and GEC's Accountants access to the
     Group's management and all other relevant personnel and to relevant books,
     records, calculations and working papers of each Group Company, of the
     Purchaser and of the Purchaser's Accountants as GEC may reasonably require
     for all purposes of clauses 3.4 and 3.5. The Purchaser will co-operate and
     procure the co-operation of the Group's management and relevant employees
     and that of the Purchaser's Accountants in connection therewith.

4.   Completion

4.1  Completion shall take place immediately following execution of this
     Agreement on the Completion Date at the offices of GEC's Solicitors.

4.2  At Completion, GEC shall do or procure the carrying out of those things
     listed in Part 1 of Schedule 2 and the Purchaser shall do or procure the
     carrying out of those things listed in Part 2 of Schedule 2 and GEC and the
     Purchaser shall respectively do or procure the carrying out of those things
     listed in Part 3 of Schedule 2 as set out therein.

4.3  Neither GEC nor the Purchaser shall be obliged to perform its obligations
     in respect of Completion unless the other party complies in all material
     respects with the requirements of sub-clause 4.2 and Part 1 or 2 of
     Schedule 2. Each party agrees that the entry into of the contract of
     employment described in clause 7.16 and paragraph 2.3 of Part 2 of Schedule
     2 shall not be a condition of Completion and accordingly the failure of
     such contract to be made for any reason shall not prevent Completion
     occurring.


<PAGE>
                                       11


4.4  Neither GEC nor the Purchaser shall be obliged to complete the sale and
     purchase of any of the Shares unless the sale and purchase of all the
     Shares is completed simultaneously. This sub-clause shall not limit any
     other clause of this Agreement.

5.   GEC's Warranties and Undertakings

5.1  (A)  Subject as otherwise set out in this Agreement, GEC warrants to the
          Purchaser in the terms of the Warranties at the date of this Agreement
          and accepts that the Purchaser is entering into this Agreement in
          reliance upon each of the Warranties.

     (B)  GEC further warrants that GEC has full power and authority to enter
          into and perform this Agreement, the Environmental Deed and the Tax
          Covenant which constitute or when executed will constitute binding
          obligations in accordance with their respective terms.

5.2  Subject to paragraph 2.2 of Schedule 4, each of the Warranties shall be
     construed as a separate and independent warranty and save as expressly
     provided shall not be limited by reference to any other Warranty or
     anything in this Agreement.

5.3  (A)  GEC waives and will procure that other members of the GEC Group waive,
          any rights, remedies, or claims GEC or any other member of the GEC
          Group may have against any director of a Group Company or any Employee
          with respect to claims arising out of any information, opinion or
          advice supplied or given (or omitted to be supplied or given) to GEC
          in connection with the proposed entering into of this Agreement and
          the sale of such Group Company, other than in the case of fraud,
          wilful misstatement or wilful omission;

     (B)  GEC agrees that any such rights, remedy or claim shall not constitute
          a defence to any claim by the Purchaser under or in relation to this
          Agreement (including the Warranties), the Environmental Deed or the
          Tax Covenant.

     (C)  GEC waives, and will procure that other members of the GEC Group waive
          any pre-emption rights it may have relating to the Shares whether
          conferred by any Group Company's Articles of Association or otherwise.

5.4  GEC covenants to pay the Purchaser an amount equal to the aggregate of all
     liabilities, losses, costs and expenses (including legal fees and experts'
     fees reasonably incurred) which any Group Company may hereafter suffer or
     incur in relation to the following matters:-

     (A)  The claims issued in the High Court of Justice Queens Bench Division
          under action number: 1993 L 3009 by former employees of the Plessey
          Company Limited or the other companies named as defendant in the said
          action in respect of the withdrawal of free life long private health
          care benefits for


<PAGE>
                                       12

          (inter alia) them and their spouses and other dependants for the rest
          of their lives;

     (B)  any losses which Plessey or Marconi incur under their contractual
          obligations to GEC Marconi Communications Limited in relation to the
          supply by Plessey or Marconi to GEC Marconi Communications Limited or
          Marconi Defence Systems Limited of varactor diodes incorporating
          defective Kovar disks sourced by Demitron which have been installed in
          TR8000 tactical radios used by the Swedish army, save, without
          limitation to the proviso below, to the extent that such amounts are
          recovered from Plessey's insurers or from Demitron and provided that
          Plessey performs at cost the low pressure chemical vapour deposition
          processing work to enable EEV Limited to fulfil its obligation to
          provide replacement varactor diodes;

     (C)  the amounts required to be repaid by any member of the Group relating
          to all grants, aids and subsidies made to any Group Company in
          accordance with the terms and conditions upon which any such grant,
          aid or subsidy was made as a consequence only of the sale and purchase
          of the Shares pursuant to this Agreement or any breach of such terms
          and conditions occurring prior to the Completion Date;

     (D)  any amounts payable by Plessey Inc. and/or Plessey in relation to a
          cross-complaint for damages, injunctive and declaratory relief filed
          by Mr. A. Ganesan with the Superior Court of California, County of
          Santa Clara, as case number CV7635517;

     (E)  any losses which Plessey incurs under its contractual obligations to
          Pace Micro Technology Limited in relation to losses incurred by Pace
          Micro Technology Limited as a result of Plessey's delay in supplying
          it with PCA 916 parts in March and April, 1996 pursuant to purchase
          orders PAA21396A and PAA22819A;

     (F)  any losses which Plessey incurs under its contractual obligations to
          Royce Thompson Limited relating to losses incurred by Royce Thompson
          Limited as a result of difficulties with the AS102D electronic
          controllers supplied by Plessey for installation in street lights, as
          set out in a letter dated 17th February, 1997 and addressed to Ms.
          Barbara Clarkson of GEC Plessey Semiconductors from Mr. Paul Farby of
          Royce Thompson Limited;

     (G)  the cost of the replacements for the defective microwave car alarms
          supplied by Plessey to Lucas Limited for installation in Rover and BMW
          automobiles for the period of 12 months prior to the Completion Date
          and up to(pound)84 for each automobile manufactured by Rover in which
          such alarms have been installed for the period of 12 months prior to
          Completion as a contribution toward the cost of the installation of
          the replacement alarms by Lucas Limited in automobiles with defective
          alarms and either (a) up to(pound)6.50 for each automobile
          manufactured by BMW in which such alarms have been installed


<PAGE>
                                       13


          up to Completion or, in the event that Plessey offers and Lucas
          accepts an extension to the warranty period therefor from 12 months to
          24 months, (b) the cost of replacement alarms for BMW for such
          additional 12 month period instead of the amount of up to(pound)6.50
          referred to above, provided in the case of each matter referred to in
          this paragraph (G) that such replacement is effected pursuant to a
          contractual obligation on the part of Plessey;

     (H)  any losses which Plessey Inc. or Plessey incur under their respective
          contractual obligations to ITT Industries or Lockheed Martin in
          respect of the supply prior to Completion by Plessey Inc. and/or
          Plessey to either company of defective 64K x 1 static random access
          memory chips as referred to in paragraph 14.1(E) of the Disclosure
          Letter including (without limitation) any liability as finally
          determined by a court of competent jurisdiction arising under
          proceedings issued in the United States District Court District of New
          Jersey under case number 98-270/MTB between ITT
          Aerospace/Communications, a division of ITT Industries Inc.
          (Plaintiffs) and GEC Plessey Semiconductors Inc. and Plessey
          Semiconductors Limited (Defendants);

     (I)  any loans owing at Completion by any of the Group Companies to any
          other GEC Group Company;

     (J)  any liability of any Group Company to pay any finders fee, brokerage,
          bonus or other commission to any third party in connection with the
          sale and purchase of the Shares under this Agreement, but excluding
          any Employee;

     (K)  any liabilities arising for rent, management charges and dilapidations
          in respect of leases or underleases of premises assigned by any Group
          Company prior to Completion or in respect of which assigned premises
          any Group Company may have a liability as guarantor or surety
          excluding in any such cases any premises of which a member of the
          Group is now a tenant but including the premises at Carholme Road,
          Lincoln, in relation to any liabilities therefor arising from the
          state and condition of such premises at Completion;

     (L)  any dividend or other distribution whether made in cash or in kind
          paid or made by any Group Company in favour of any GEC Group Company
          at any time between 31st March 1997 and the Completion Date, other
          than any such dividend or distribution, details of which are disclosed
          in writing to the Purchaser in the Disclosure Letter;

     (M)  any contributions which Plessey Inc. is required by law to make to the
          GEC-USA Savings and Investment Plan as a result of any unlawful
          exclusion therefrom of its seasonal and part-time employees between
          1st July, 1990 and 31st December, 1993;

     (N)  any losses which Plessey incurs under its contractual obligations to
          customers in respect of defects in products falling within the
          following categories which


<PAGE>
                                       14


          were manufactured under the LK process (as referred to in the Oldham
          Agreements) and shipped to customers from 31st August, 1997 to 1st
          November, 1997:

          (i)  the KESRX 02;

          (ii) two devices relating to the optical data storage product group;
               and

         (iii) the NWK 914 network transceiver supplied to customers in the
               Asia Pacific;

     provided that the limitations set out in paragraphs 3.1(A)(i), (B), 3.2
     (save that the period shall be six years from the Completion Date, and in
     the proviso shall remain six months), 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9(B),
     3.10 and 3.12 of Schedule 4 shall apply, mutatis mutandis, to this clause
     5.4 except that any amount paid to the Purchaser pursuant to this clause
     5.4 shall not be taken into account when calculating the aggregate amount
     of claims for the purposes of sub-paragraph 3.1(A)(ii) of Schedule 4, but
     shall form part of the aggregate liabilities of GEC for the purposes of
     paragraph 3.1(B) of Schedule 4 and provided further that GEC agrees that if
     GEC shall take sole conduct of an action pursuant to paragraph 3.3(C) of
     Schedule 4 as it applies to this clause in respect of a matter for which
     there is a provision in the Completion Balance Sheets, then GEC shall not
     make any admission of liability, agreement, settlement or compromise with
     any third party in relation to any such matter without the prior written
     consent of the Purchaser (such consent not to be unreasonably withheld or
     delayed) save that if GEC agrees with the relevant third party to settle or
     compromise such a matter, and the Purchaser refuses to agree to such
     settlement or compromise then, if the amount for which GEC subsequently
     becomes liable exceeds the figure at which it would have so settled or
     compromised the relevant matter, GEC shall not be liable for the excess
     amount or any costs or liability incurred since the proposed date of
     settlement or compromise.

6.   Restrictions on GEC Group

6.1  No member of the GEC Group will use any confidential information which is
     the property of a Group Company which it has obtained by reason of the GEC
     Group's ownership of such Group Company in order to compete with such Group
     Company and GEC shall not and shall procure that no member of the GEC Group
     nor any officer or employee of GEC or any member of the GEC Group shall
     make use of or divulge to any third party (other than GEC's professional
     advisers in which case GEC will use all reasonable endeavours to procure
     that such advisers keep such information confidential on terms equivalent
     to this clause) any such confidential information relating to the Group
     Companies save only:

     (A)  insofar as the same has become public knowledge otherwise than,
          directly or indirectly, through GEC's breach of this clause 6.1 or the
          failure of the officers, employees or professional advisers referred
          to above to keep the same confidential; or


<PAGE>
                                       15


     (B)  to the extent required by law or by any supervisory body or regulatory
          body; or

     (C)  to the extent GEC reasonably considers necessary as a result of any
          claim by the Purchaser for breach of Warranty or other provision of
          this Agreement or in relation to a claim pursuant to clause 5.4; or

     (D)  to the extent GEC or any member of the GEC Group has a right to make
          use of or divulge any such confidential information relating to the
          Group Companies on any other account including, without limitation, in
          its capacity as a customer of the Group Companies.

6.2  Save as otherwise agreed by the Purchaser and subject to clause 6.3, GEC
     undertakes with the Purchaser (as trustee for itself and the Group
     Companies) that it will not and that it will procure that no member of the
     GEC Group will:-

     (A)  for a period of two years after the date of this Agreement, either on
          its own account or in conjunction with or on behalf of any person,
          firm or company, carry on anywhere in the world in competition with
          the Group, the business of the manufacture of silicon semiconductor
          devices utilising CMOS and/or bipolar technologies as components for
          ultimate inclusion in third party end equipment, as such business is
          conducted by the Group at the date of this Agreement (the "Restricted
          Business");

     (B)  for a period of three years after the date of this Agreement, either
          on its own account or in conjunction with or on behalf of any person,
          firm or company, solicit or endeavour to entice away from the Group
          Companies any person who at the date of this Agreement is a director,
          officer, manager or is a member of the technical, information systems,
          engineering or research and development staff or is an employee not
          within those categories whose basic salary at the date of this
          Agreement is in excess of(pound)50,000 per annum, in each case of any
          of the Group Companies whether or not such person would commit a
          breach of contract by reason of leaving service or office except a
          person who responds to a public advertisement or who is first
          approached when no longer an employee of a Group Company or any other
          member of the Purchaser's Group.

6.3  Nothing in clause 6.2 shall restrict any member of the GEC Group from:-

     (A)  carrying on or developing the business currently carried on by the GEC
          Group, including, without limitation, at the manufacturing facility at
          Lansdowne Road, Oldham, except that the manufacture of the Retained
          Products (as defined in the Oldham Agreements) shall require the
          approval of the Purchaser to the extent not already approved in the
          Oldham Agreements;

     (B)  acquiring the whole or any part of a body corporate which carries on
          the Restricted Business or the whole or any part of a business which
          includes the


<PAGE>
                                       16


          carrying on of the Restricted Business, except that where more than
          one-third of the turnover of the body corporate or of the business
          acquired as set out in the latest available audited accounts of that
          body corporate or business consists of the Restricted Business, GEC
          shall use its reasonable endeavours to procure the disposal of such
          Restricted Business;

     (C)  holding less than 20 per cent. of any class of shares or debentures
          listed on the London Stock Exchange or any other recognised stock
          exchange; or

     (D)  acquiring or holding any interest in any joint venture (whether
          incorporated or unincorporated) except where such joint venture is a
          subsidiary of GEC.

6.4  GEC undertakes to take all reasonable steps to ensure compliance with the
     terms of clause 6.2 above by employees of the GEC Group.

6.5  Subject to clause 6.6, GEC undertakes that it shall not and shall procure
     that no member of the GEC Group shall use the trade mark or name "Plessey"
     or any confusingly similar mark or name in relation to the Restricted
     Business.

6.6  GEC shall use its reasonable endeavours to procure compliance with the
     undertaking in clause 6.5 within 90 days of the date of this Agreement,
     except for the Business (as defined in the Oldham Agreements) where the
     period shall be 6 months.

6.7  Each of the undertakings in clause 6.2 is a separate and independent
     undertaking and if one or more undertakings is held to be void or
     unenforceable, the validity of the remaining undertakings shall not be
     affected.

6.8  GEC agrees that the restrictions and undertakings contained in clauses 6.2
     and 6.4 are reasonable and necessary for the protection of the Purchaser's
     legitimate interests in the goodwill of the Group Companies but if any such
     restriction or undertaking shall be found to be void or voidable, but would
     be valid and enforceable if some part or parts of the restriction or
     undertaking were deleted such restriction or undertaking shall apply with
     such modifications as may be necessary to make it valid and enforceable.

6.9  Without prejudice to clause 6.8 if any restriction or undertaking is found
     by any court or other competent authority to be void or unenforceable the
     parties shall negotiate in good faith to replace such void or unenforceable
     restriction or undertaking with a valid provision, which, as far as
     possible, has the same legal and commercial effect as that which it
     replaces.

7.   Further Warranties and Undertakings

7.1  Each party warrants to the other as follows (save that the Purchaser and
     the Guarantor give no warranties to each other):-


<PAGE>
                                       17


     (A)  it has the requisite power and authority to enter into and perform
          this Agreement and the other documents to be executed by it and
          delivered at Completion in accordance with this Agreement;

     (B)  this Agreement constitutes and the other documents executed by it
          which are to be delivered at Completion will, when executed,
          constitute obligations binding on it; and

     (C)  the execution and delivery of, and the performance by it of its
          obligations under this Agreement will (or with the giving of notice or
          lapse of time or both would) not:-

          (i)  result in a breach of a statutory provision or regulation
               applicable to it of any provision of its memorandum or articles
               of association or other constitutional documents;

          (ii) result in a breach of any order, judgment or decree of any court
               or governmental agency to which it or any member of the
               Purchaser's Group or the GEC Group as the case may be is a party
               or by which it or any member of the Purchaser's Group or the GEC
               Group as the case may be is bound; or

         (iii) require the consent of its shareholders.

7.2  (A)  The Purchaser undertakes to use its reasonable endeavours (which
          reasonable endeavours shall include, if required to obtain such a
          release, an offer by the Guarantor to enter into a covenant on behalf
          of the beneficiary of the GEC Security on terms at least equivalent to
          those contained in the GEC Security (the "Equivalent Offer")) to
          procure that, as soon as reasonably practicable following Completion
          in the case of those GEC Securities notified to the Purchaser by GEC
          at Completion and, in the case of any other GEC Security, as soon as
          reasonably practicable following the service by GEC of a notice to the
          Purchaser to effect such a release, GEC and each other member of the
          GEC Group is released from the GEC Securities and undertakes to hold
          GEC, for itself and as trustee for its subsidiaries and the relevant
          members of the GEC Group, indemnified and to keep it and them
          indemnified from and against all actions, claims, proceedings, loss,
          damage, payments, costs or expenses incurred by GEC or any member of
          the GEC Group in relation to or arising out of all GEC Securities but,
          if such liability does not relate to a liability incurred by a member
          of the Group in the ordinary course of its business, only to the
          extent that the liabilities arising under the GEC Securities are
          fairly disclosed in the Disclosure Letter. Without prejudice to the
          Purchaser's obligations in this clause 7.2(A), GEC agrees not to
          disclose to the beneficiary of the relevant GEC Security the existence
          of the Guarantor's obligation to make the Equivalent Offer without the
          prior written consent of the Guarantor which shall not be unreasonably
          withheld or delayed; and


<PAGE>
                                       18


     (B)  (i)  GEC agrees to maintain (so far as it is able):

          (aa) the duty deferment arrangement for period entry imports set out
               below:-

               Name:    Plessey Semiconductors Limited
               C&E No:  7103124
               Bond No: IBSU/83015975;

          (bb) the VAT/Duty Deferment Bond set out below:-

               Name:        Plessey Semiconductors Limited
               Approval No: 8708747
               Bond No./Reference: IBSU/83017284,

               and GEC's guarantee in respect thereof for a period of 21 days
               after Completion provided that GEC shall have been granted an
               indemnity by Lloyds Bank plc in the Agreed Form in respect of any
               use of each of the above bonds on or after Completion; and

          (ii) The Purchaser undertakes to put in place facilities and
               guarantees replacing those described in paragraph (i) above as
               soon as reasonably practicable following Completion and in any
               event within 21 days following Completion.

7.3  (A)  The Purchaser acknowledges that the Names are and shall remain the
          property of the GEC Group and that nothing in this Agreement shall
          transfer nor shall operate as an agreement to transfer any right,
          title or interest in any of the Names to the Purchaser.

     (B)  Subject to sub-clause 7.4, the Purchaser further undertakes that it
          shall not and shall procure that no Group Company nor any other member
          of the Purchaser's Group shall make any use of any trade marks or
          business or corporate names consisting of or incorporating any of the
          Names and/or any trade mark or business or corporate name confusingly
          similar thereto in relation to any goods or services and that it shall
          procure that upon Completion each of the Companies and each other
          member of the Group whose corporate name includes any of the Names
          passes (and files with the Registrar of Companies) a resolution to
          change its name to a name not incorporating any of the Names and that
          a certified copy of each resolution effecting such changes of name is
          provided to GEC at Completion and changes at Completion all internet
          domain names so as not to incorporate any of the Names.

7.4  The Purchaser undertakes that it shall procure:


<PAGE>
                                       19

     (A)  as soon as reasonably practicable and in any event no later than 90
          days from the Completion Date, the removal of the Names from all
          premises, signs and vehicles which are used by or in connection with
          any Group Company; and

     (B)  that immediately following Completion no brochures, leaflets or
          similar documents and no packaging containing any reference to the
          Names shall be ordered from suppliers or printed by any Group Company
          and, with respect to existing brochures, leaflets or similar documents
          and packaging containing a reference to the Names, that the relevant
          Group Company shall use its reasonable endeavours to ensure that as
          soon as practicable after Completion such references are deleted,
          pasted over or a sticker is put over such references.

7.5  Without prejudice to the generality of sub-clause 7.3(B), the Purchaser
     undertakes to procure immediately following Completion that each Group
     Company shall cease to use any stationery, purchase order, invoice, receipt
     or other similar document containing any reference to any of the Names.

7.6  The Purchaser hereby grants and shall procure that each member of the Group
     at the date hereof grants, with effect from Completion a non-exclusive,
     irrevocable, non-transferable, royalty-free, perpetual worldwide licence to
     GEC for the benefit of itself and each GEC Group Company (except Hevermill
     Limited) to use (which includes the right to sub-contract but not to
     sub-licence) for the purpose of the business of each GEC Group Company
     (except the Business as defined in the Oldham Agreements) all Intellectual
     Property owned at Completion by any of the Group Companies to the extent
     used by any GEC Group Company prior to the Completion Date in any part of
     the businesses of the GEC Group but so that no use of such rights shall
     extend to use in relation to the Restricted Business.

7.7  In addition to the rights granted pursuant to sub-clause 7.6 above, the
     Purchaser hereby grants and shall procure the grant by each member of the
     Group Companies with effect from Completion of a non-exclusive,
     irrevocable, royalty-free, perpetual worldwide licence to GEC for the
     benefit of itself and each other company which is a member of the GEC Group
     to use all right in the patents or patent applications (or any patent
     derived therefrom) owned by any member of the Group or assigned to the
     Purchaser (or any member of the Group ) at Completion in any business other
     than the Restricted Business. The licence shall be transferable to a
     purchaser (whether by shares or assets) of all or a substantial part of any
     business using any or all of such patent rights to the extent that such
     rights are used at such time.

7.8  If either GEC or the Purchaser discovers at any time after Completion that
     any Group Company owns any Intellectual Property at the Completion Date
     which relates exclusively to any business carried on by the GEC Group prior
     to the Completion Date, it shall immediately notify the other. Thereafter,
     at the request and expense of GEC, the Purchaser undertakes to procure the
     assignment of any such Intellectual Property to the member of the GEC Group
     nominated by GEC, subject to the grant by such member of the GEC Group of a
     non-exclusive, irrevocable, non-transferrable,


<PAGE>
                                       20

     royalty-free, perpetual worldwide licence to the Purchaser for the benefit
     of itself and each Group Company to use such intellectual property for the
     purpose of the Restricted Business.

7.9  The Purchaser further warrants to GEC that it is purchasing the Shares for
     the Purchaser's own account for investment purposes only and not with a
     view to, or for sale in connection with, a distribution of the Shares
     within the meaning of the U.S. Securities Act of 1933, as amended (the
     "1933 Act"). The Purchaser has no present intention of selling or otherwise
     disposing of all or any portion of the Shares and shall at no time offer to
     sell or otherwise dispose of the Shares in violation of the registration
     requirements of the 1933 Act or any state securities law;

7.10 The Purchaser undertakes itself to, and to procure that each Group Company
     shall, provide to GEC and any person authorised by GEC for six years from
     Completion such reasonable access to the premises, relevant employees and
     all the Books and Records and title deeds of the Group as GEC or any
     professional adviser authorised by GEC may reasonably require in connection
     with the audit and taxation affairs of the GEC Group or the previous
     ownership of the Group by the GEC Group upon reasonable notice and subject
     to giving such undertakings as to confidentiality as the Purchaser or the
     relevant Group Company may reasonably require and the Purchaser or the
     relevant Group Company will instruct its directors to give promptly all
     reasonable information and explanations to GEC or any such professional
     advisers authorised by GEC as they may reasonably request exclusively for
     such audit or taxation purposes.

7.11 GEC hereby grants and shall procure that each member of GEC Group at the
     date hereof grants, with effect from Completion, a non-exclusive,
     irrevocable, non-transferable (except to a purchaser from the Purchaser of
     all or a substantial part of the Lincoln Business (as such term is defined
     in clause 12.3) to the extent relevant to such business), royalty free,
     perpetual, worldwide licence to the Purchaser for the benefit of itself and
     each Group Company to use (which shall include the right to sub-contract,
     but not sub-licence) for the purpose of the business of each Group Company
     all Intellectual Property (except for the Names) which is both owned at
     Completion by any member of the GEC Group and which is also used by any
     Group Company prior to the Completion Date in any part of the business of
     the Group to the extent currently used.

7.12 If either GEC or the Purchaser discovers at any time after Completion that
     any GEC Group Company owns any Intellectual Property at the Completion Date
     which relates exclusively to any business carried on by the Group prior to
     the Completion Date, it shall immediately notify the other. Thereafter at
     the request of the Purchaser, GEC undertakes to execute such documents as
     the Purchaser may reasonably require in order to effect the assignment of
     any such Intellectual Property to the member of the Purchaser's Group
     nominated by the Purchaser subject to the grant by such member of the
     Purchaser's Group of a non-exclusive, irrevocable, non-transferrable,
     royalty-free, perpetual licence to GEC for the benefit of itself and each
     Group Company to use such intellectual property, except in relation to
     Restricted Business.


<PAGE>
                                       21


7.13 The Purchaser hereby confirms and undertakes to GEC that it has on the date
     hereof entered into those undertakings required by Her Majesty's Government
     in the Agreed Form.

7.14 The Purchaser undertakes to hold GEC for itself and as trustee for its
     subsidiaries, the relevant member of the GEC Group, Plessey Properties
     Limited and The Plessey Company Ltd. indemnified and to keep it and them
     indemnified from and against all actions, claims, proceedings, loss,
     damage, payments, costs or expenses incurred by GEC, any member of the GEC
     Group, Plessey Properties Limited or The Plessey Company Limited as a
     result of its having been the tenant or its having guaranteed the
     obligations of the tenant of the Crompton Road Property, the Tavistock Road
     Property, the Altrincham Property, the Scotts Valley Property or the Cheney
     Manor Property save insofar as such liabilities fall to be discharged by
     GEC pursuant to the Environmental Deed.

7.15 GEC undertakes to procure that GEC France SA enters into an assignment of
     such rights as GEC France SA has in respect of the property at 26 Rue
     Augustin Fresnel, Chambrey Les Tours more fully described in Part III of
     Schedule 8 to the extent that such rights are assignable to the Purchaser
     or a member of the Purchaser's Group unless GEC France SA or another Group
     Company enters into a lease of or other agreement relating to the
     occupation of such property prior to Completion.

7.16 The Purchaser hereby confirms and undertakes to GEC that:

     (i)  it has prior to Completion made and not withdrawn (and will not
          withdraw for 14 days following the Completion Date) an offer to Tom
          Urwin to employ him as from Completion on the same terms as or better
          than those on which he was immediately prior thereto employed; and

     (ii) it will enter into a contract of employment on the basis described in
          paragraph (i) above with Tom Urwin, subject to his consent having been
          obtained thereto, at Completion or as soon as reasonably practicable
          once his consent has been obtained.

7.17 GEC agrees to release or procure the release of Tom Urwin from any notice
     period he is required to give pursuant to his contract of employment with
     the GEC Group at Completion or as soon as reasonably practicable, in either
     case, following a written request therefor from him in order to enable him
     to accept the offer of employment referred to in clause 7.16.

7.18 The Purchaser and the Guarantor each warrant to GEC:

     (A)  in the terms of paragraph 13 of Schedule 3 (save paragraphs 13.3(B),
          13.4(B) and 13.5(B) as if, for this purpose, the Purchaser were named
          therein instead of the relevant Group Company and as if, for the
          purpose of paragraph 13.1 thereof, the Purchaser and the Guarantor
          were named therein instead of GEC; and


<PAGE>
                                       22

     (B)  that the Purchaser is a wholly-owned subsidiary of the Guarantor.

8.   Purchaser's Remedies and GEC's Limitations on Liability

8.1  The Purchaser's right to claim that a Warranty (which for the purposes of
     this clause 8.1 shall exclude those warranties in clauses 5.1(B) and 7.1(A)
     (so far as they relate to GEC) to which none of those limitations shall
     apply) has been breached shall be limited as set out in this Agreement and
     no liability shall attach to GEC in respect of claims under the Warranties,
     the Environmental Deed or the Tax Covenant, as the case may be, if and to
     the extent that such limitations apply.

8.2  The Purchaser shall not be entitled to claim that any fact causes any of
     the Warranties to be breached, or gives rise to a claim under the
     Environmental Deed (in relation to the Current Properties only (and not in
     relation to the Former Properties)), if it was fairly disclosed in the
     Disclosure Letter or in any Disclosure Document.

8.3  If, following Completion, the Purchaser becomes aware that there has been
     any breach of the Warranties or any other term of this Agreement the
     Purchaser shall not be entitled to treat this Agreement as terminated but
     shall, subject as otherwise provided herein, be entitled to claim damages
     under this Agreement.

8.4  Each of the parties acknowledges that the restrictions contained in clauses
     6.1 and 16 shall continue to apply after the completion of the sale and
     purchase of the Shares under this Agreement without limit in time.

8.5  The rights and remedies of the Purchaser in respect of any breach of the
     Warranties shall not be affected by Completion or by giving time or other
     indulgence by the Purchaser to GEC except a specific waiver or release by
     the Purchaser in writing.

9.   Pension and Other Arrangements

     (A)  Each of GEC and the Purchaser shall comply with Schedule 5.

     (B)  GEC hereby undertakes to the Purchaser (for itself and as trustee for
          the Group Companies) to reimburse in full within 14 days of written
          demand the payments made by Group Companies to Employees in relation
          to the special bonus payments (relating to their retention) as
          disclosed by GEC to the Purchaser in the Agreed Form but including in
          addition any employer's national insurance and employer's pension
          contribution relating thereto, if any.

10.  Cross Licences and Assignments

10.1 GEC shall at the date of Completion grant a sub-licence in the Agreed Form
     under the AT&T/Lucent Cross Licence.


<PAGE>
                                       23


10.2 GEC shall procure the grant of a licence from IBM to Plessey in the Agreed
     Form immediately after Completion. The Purchaser shall pay GEC,
     (pound)30,000 on 1st January 1999 and (pound)12,500 on 1st January 2000 in
     consideration for GEC procuring the grant of such licence. At the request
     of the Purchaser within 60 days of Completion, GEC shall procure the grant
     of a licence from IBM in "Election I" form (being the form set out in
     Document 64 of Annex II of the Schedule to the Disclosure Letter) on
     payment to GEC of (pound)580,000.

10.3 The Purchaser acknowledges that the patent rights owned by the Group
     Companies which are the subject of the AT&T Lucent Cross Licence and the
     IBM Cross Licence are subject to an irrevocable, royalty-free,
     non-exclusive licence to Lucent pursuant to the AT&T/Lucent Cross Licence
     and to IBM pursuant to the IBM Cross Licence.

10.4 GEC shall procure that at Completion the GEC Group Companies enter into and
     deliver completed deeds of assignment in the Agreed Form and the assignment
     of rights relating to the Plessey name in the Agreed Form.

11.  Remedies and Waivers

11.1 No delay or omission on the part of any party to this Agreement in
     exercising any right, power or remedy provided by law or under this
     Agreement or any other documents referred to in it shall:-

     (A)  impair such right, power or remedy; or

     (B)  operate as a waiver thereof

     except in respect of any right, power or remedy exercisable by the
     Purchaser under the provisions relating to limitations on liability under
     the Warranties as set out in clause 8 and Schedule 4 or in relation to
     clause 5.4.

11.2 The single or partial exercise of any right, power or remedy provided by
     law or under this Agreement shall not preclude any other or further
     exercise thereof or the exercise of any other right, power or remedy.

11.3 The rights, powers and remedies provided in this Agreement are cumulative
     and (subject as expressly provided herein) not exclusive of any rights,
     powers and remedies provided by law.

12.  Assignment

12.1 This Agreement and the benefits (including the Warranties) and obligations
     under it and any part of it shall not be assignable by the Purchaser or the
     Guarantor except that the Purchaser may, upon giving written notice to GEC,
     assign the benefit (but not the burden) of this Agreement to a member of
     the Purchaser's Group and the terms of such assignment shall provide that:-


<PAGE>
                                       24


     (A)  any such assignee remains a member of the Purchaser's Group; and

     (B)  before such assignee ceases to be a member of the Purchaser's Group,
          the Purchaser will procure that the benefit of this Agreement is
          assigned to the Purchaser or (upon giving further written notice to
          GEC) to another company within the Purchaser's Group (any such further
          assignment to be subject to the same conditions as above); and

     (C)  any assignee, including a subsequent assignee, shall agree with GEC
          that if the liability of GEC shall be increased by reason of such
          assignment, the assignee shall be entitled to claim against GEC only
          such amount as would equal GEC's liability had no assignment taken
          place.

12.2 This Agreement and the benefits and obligations under it and any part of it
     shall not be assignable by GEC except that GEC may, upon giving written
     notice to the Purchaser assign the benefit (but not the burden) of this
     Agreement to a member of the GEC Group provided that:-

     (A)  any such assignee remains a member of the GEC Group; and

     (B)  before such assignee ceases to be a member of the GEC Group, GEC will
          procure that the benefit of this Agreement is assigned to GEC or (upon
          giving further written notice to the Purchaser) to another company
          within the GEC Group (any such further assignment to be subject to the
          same conditions as above); and

     (C)  any assignee, including a subsequent assignee, shall agree with the
          Purchaser that if the liability of the Purchaser shall be increased by
          reason of such assignment, the assignee shall be entitled to claim
          against the Purchaser only such amount as would equal the Purchaser's
          liability had no assignment taken place.

12.3 Notwithstanding the provisions of clauses 12.1 and 12.2 the Purchaser may
     assign (the "Assignment Right") the benefit of the Environmental Deed
     insofar as it relates to the Lincoln Business to a purchaser of the Lincoln
     Business. The "Lincoln Business" means the business that will be carried on
     by the Group Companies at the Properties in Lincoln identified in Schedule
     8 and all assets relating to such business and such other businesses as may
     be carried on at other Properties belonging to any Group Company at
     Completion and which are ancillary to the business carried on at Lincoln.
     The Purchaser and the Guarantor each undertake that they will not, and that
     they will procure that no member of the Purchaser's Group does, disclose
     the Assignment Right to an actual or prospective purchaser of the Lincoln
     Business without the prior written consent of GEC which shall not be
     unreasonably withheld or delayed. The provisions of clause 12.1(C) above
     shall apply mutatis mutandis to any assignment pursuant to this clause.


<PAGE>
                                       25


12.4 Subject to clause 12.3, the Warranties and the Environmental Deed shall
     cease to have any effect for all purposes in relation to a Group Company
     upon such Group Company ceasing to be owned by a member of the Purchaser's
     Group.

13.  Further Assurance

     Each of the parties shall from time to time, on being required to do so by
     the other, now or at any time in the future, execute or procure the
     execution of all such documents in a form satisfactory to the party
     concerned as the parties may, in each such case, reasonably consider
     necessary for giving full effect to this Agreement and securing to the
     Purchaser or GEC (as the case may be) the full benefit of the rights,
     powers and remedies conferred upon them in this Agreement.

14.  Entire Agreement

14.1 This Agreement, the Tax Covenant, the Environmental Deed, the Disclosure
     Letter and any other documents referred to in this Agreement (together the
     "Sale Documents") constitute the whole and only agreement between the
     parties relating to the sale and purchase of the Shares and, save to the
     extent expressly set out in those documents, supersede and extinguish any
     prior drafts, agreements, undertakings, representations, warranties,
     promises, assurances and arrangements of any nature whatsoever, whether or
     not in writing relating thereto including those confidentiality agreements
     and letters dated 5th November, 1997 and on or around 15th December, 1997
     respectively (together the "Confidentiality Agreements") save that any
     rights of members of the GEC Group which may have occurred or arisen prior
     to the date hereof pursuant to such Confidentiality Agreements shall remain
     subsisting.

14.2 Each party acknowledges that, save to the extent expressly set out in the
     Sale Documents, in entering into the Sale Documents on the terms set out
     therein, it is not relying upon any agreement, undertaking, representation,
     warranty, promise, assurance or arrangement made or given by any other
     party or any other person, whether or not in writing, at any time prior to
     the execution of this Agreement (including without limitation any statement
     made, information given or opinion expressed in the Information Memorandum
     or in any Disclosure Document) or any warranty or condition implied by
     statute or otherwise and no representations or warranties are given by GEC
     save for the Warranties.

14.3 None of the parties shall have any right of action against any other party
     to this Agreement arising out of or in connection with any agreement,
     undertaking, representation, warranty, promise, assurance or arrangement
     referred to in sub-clause 14.1 or 14.2 above (except in the case of fraud
     and save to the extent expressly set out in the Sale Documents but
     excluding the Disclosure Letter).


<PAGE>
                                       26


15.  Notices

15.1 Any notice or other communication given or made under or in connection with
     the matters contemplated by this Agreement shall, unless expressly stated
     otherwise, be in writing, other than writing on the screen of a visual
     display unit or other similar device which shall not be treated as writing
     for the purposes of this clause.

15.2 (A)  Any such notice or other communication shall be addressed as provided
          in sub-clause 15.3 and sent by personal delivery or by first class
          post Provided that if, in accordance with the above provisions, any
          such notice or other communication is sent given or made outside
          Working Hours, such notice or other communication shall be deemed to
          be sent given or made at the start of Working Hours on the next
          Business Day.

     (B)  In the absence of evidence of earlier receipt, a notice or other
          communication is deemed given:

          (i)  if sent by personal delivery, when left at the address specified
               in clause 15.3; and

          (ii) if sent by first class post, two Business Days after it is
               posted.

15.3 The relevant addressee and address of each party for the purposes of this
     Agreement, subject to sub-clause 15.4, are:-

     Name of party       Addressee                Address
     -------------       ---------                -------

     GEC                 Company Secretary        1 Stanhope Gate,
                                                  London, W1A 1EH

                                                  with a copy to:
                                                  Slaughter and May
                                                  35 Basinghall Street
                                                  London, EC2V 5DB
                                                  Attention:- Nigel Boardman

     The Purchaser       Company Secretary        Portskewett, Gwent NP6 4YR

     The Guarantor       Company Secretary        350 Legget Drive, Kanata,
                                                  Ontario, Canada K2K IX3

15.4 Each party may notify any other party to this Agreement of a change to its
     name, relevant addressee or address for the purposes of sub-clause 15.3
     Provided that such notification shall only be effective on:-

     (A)  the date specified in the notification as the date on which the change
          is to take place; or


<PAGE>
                                       27


     (B)  if no date is specified or the date specified is less than five clear
          Business Days after the date on which notice is given, the date
          falling five clear Business Days after notice of any such change has
          been given.

16.  Announcements

16.1 Subject to sub-clause 16.2 no public announcement concerning the sale of
     the Shares or any ancillary matter shall be made by any party without the
     prior written approval of the other, such approval not to be unreasonably
     withheld or delayed.

16.2 Any party may make a public announcement concerning the sale of the Shares
     or any ancillary matter if required by the law of any relevant jurisdiction
     or any securities exchange or regulatory or governmental body to which such
     party is subject, wherever situated, including (without limitation) the
     London Stock Exchange or the Panel, whether or not the requirement has the
     force of law, Provided that any such announcement shall be made only after
     consultation with each other party (if practicable).

16.3 The restrictions contained in this clause shall continue to apply after
     Completion without limit in time.

17.  Restrictive Trade Practices Act 1976

     If there is any provision of this Agreement, or of any agreement or
     arrangement of which this Agreement forms part, which causes or would cause
     this Agreement or that agreement or arrangement to be subject to
     registration under the RTPA 1976, then that provision shall not take effect
     until the day after particulars of this Agreement or of that agreement or
     arrangement (as the case may be) have been furnished to the Director
     General of Fair Trading pursuant to section 24 RTPA 1976.

18.  Costs and Expenses

     The Purchaser shall bear and pay the cost of all stamp duty, stamp duty
     reserve tax and other similar duty, levy or tax and all registration fees
     which may result in any jurisdiction from the execution and performance of
     this Agreement and the other agreements entered into pursuant hereto and
     the transfer of the Shares to the Purchaser and the transactions
     contemplated hereby. Save as otherwise stated in this clause or in any
     other provision of this Agreement, each party shall pay its own costs and
     expenses in relation to the negotiations leading up to the sale and
     transfer of the Shares and in relation to the preparation, execution and
     carrying into effect of this Agreement and all other documents referred to
     in it and the transactions contemplated hereby.


<PAGE>
                                       28


19.  Counterparts

19.1 This Agreement may be executed in any number of counterparts, and by the
     parties on separate counterparts, but shall not be effective until each
     party has executed at least one counterpart.

19.2 Each counterpart shall constitute an original of this Agreement, but all
     the counterparts shall together constitute but one and the same instrument.

20.  Time of Essence

     Save as otherwise expressly provided, time is of the essence only for the
     purposes of clause 4 and Schedules 2 and 4.

21.  Effect of Completion

21.1 All provisions of this Agreement shall, so far as they are capable of being
     performed or observed, continue in full force and effect notwithstanding
     Completion except in respect of those matters then already performed and
     Completion shall not constitute a waiver of any of the Purchaser's rights
     in relation to this Agreement, the Environmental Deed or the Tax Covenant.

21.2 Without prejudice to clause 21.1 the Warranties shall not be extinguished
     by Completion.

22.  Invalidity

     If at any time any provision of this Agreement is or becomes illegal,
     invalid or unenforceable in any respect under the law of any jurisdiction,
     then such provision will be deemed to be severed from this Agreement and if
     possible replaced by a lawful provision which carries out, as closely as
     possible, the intention of the parties under this Agreement and where
     permissible that shall not affect or impair:-

     (A)  the legality, validity or enforceability in that jurisdiction of any
          other provision of this Agreement; or

     (B)  the legality, validity or enforceability under the law of any other
          jurisdiction of that or any other provision of this Agreement.

23.  Governing Law

     This Agreement shall be governed by and construed in accordance with
     English law.

24.  Jurisdiction

     Each party to this Agreement irrevocably agrees that any Proceedings
     against it may be brought in the courts of England. Nothing contained in
     this clause shall limit any


<PAGE>
                                       29


     party's rights to take Proceedings against the other in any other court of
     competent jurisdiction, nor shall the taking of Proceedings in one or more
     jurisdictions preclude the taking of Proceedings in any other jurisdiction,
     whether concurrently or not, to the extent permitted by the law of such
     other jurisdiction.

25.  Agent for Service

25.1 The Guarantor irrevocably appoints the Company Secretary of the Purchaser
     of Porkskewett Gwent NP6 4YR to be its agent for the service of process in
     England. It agrees that any Service Document may be effectively served on
     it in connection with Proceedings in England and Wales by service on its
     agent.

25.2 Any Service Document shall be deemed to have been duly served on the
     Guarantor if marked for the attention of the Company Secretary of the
     Purchaser at Porkskewett Gwent NP6 4YR (or such other address within
     England or Wales as the agent may, on not less than three Business Days'
     notice, notify GEC) and:

     (A)  left at the specified address; or

     (B)  sent to the specified address by first class post.

          In the case of (A), the Service Document shall be deemed to have been
          duly served when it is left. In the case of (B), the Service Document
          shall be deemed to have been duly served two Business Days after the
          date of posting.

25.3 If the agent at any time ceases for any reason to act as such, the
     Guarantor shall immediately appoint a replacement agent having an address
     for service in England or Wales and shall notify GEC of the name and
     address of the replacement agent. Failing such appointment and
     notification, GEC shall be entitled by notice to the Guarantor to appoint a
     replacement agent to act on the Guarantor's behalf. The provisions of this
     clause applying to service on an agent apply equally to service on a
     replacement agent.

25.4 A copy of any Service Document served on an agent shall be sent by post to
     the Guarantor. Failure or delay in so doing shall not prejudice the
     effectiveness of service of the Service Document.

     "Service Document" means a writ, summons, order, judgment or other process
     issued out of the courts of England and Wales relating to or in connection
     with any Proceedings.

     AS WITNESS the hands of the duly authorised representatives of the parties
     the day and year first above written.


<PAGE>
                                       30

                                   Schedule 1:
                                   Definitions

(A) In this Agreement, unless otherwise specified the following terms and
expressions shall have the following respective meanings:-

     "Accounts"                    the financial statements of each Group
                                   Company (save PSSY Semiconductors Svenska
                                   Aktiebolag) for the year ended on the
                                   Accounts Date, copies of which are included
                                   in sections 1.1. and 1.2 of the Schedule to
                                   the Disclosure Letter;

     "Accounts Date"               31st March, 1997;

     "Adjustment"                  the amount established pursuant to clause
                                   3.4(F);

     "AEI"                         AEI Semiconductors Limited, of which
                                   particulars are given in Part A of Schedule
                                   7;

     "AEI Names"                   the names AEI and Associated Electrical
                                   Industries;

     "Agreed Form"                 in relation to any document, such document in
                                   a form agreed and initialled for the purposes
                                   of identification by the Purchaser's
                                   Solicitors on behalf of the Purchaser and
                                   GEC's Solicitors on behalf of GEC;

     "Agreed Amount"               (pound)183,405,000;

     "Aggregated Completion 
     Balance Sheet"                an aggregation of the Completion Balance
                                   Sheets drawn up as at the Completion Date in
                                   the same manner as the Proforma Aggregated
                                   Balance Sheet as at 31st December, 1997;

     "Altrincham Property"         the unregistered leasehold property
                                   comprising Unit H2, Hanover Business Park,
                                   Altrincham more fully described in section 2
                                   of Part I of Schedule 8;

     "AT&T/Lucent Cross Licence"   a patent cross licence agreement effective as
                                   of 1st July, 1983 between GEC and Lucent
                                   Technologies Inc. as successor of AT&T Corp.;

     "Books and Records"           has its common law meaning and includes,
                                   without limitation, all notices,
                                   correspondence, orders, inquiries, drawings,
                                   plans, books of account and other documents
                                   and all computer disks or tapes or


<PAGE>
                                       31


                                   other machine legible programs or other
                                   records;

     "Business Day"                a day (other than a Saturday or a Sunday) on
                                   which banks are open for business in London;

     "Carholme Road Property"      the building of approximately 40,000 square
                                   feet at a site at Carholme Road, Lincoln
                                   occupied by Plessey more fully described in
                                   paragraph 17.1 of the Disclosure Letter;

     "Certificated Properties"     each of the freehold and leasehold properties
                                   described in Part II of Schedule 8 (and
                                   "Certificated Property" means any of them);

     "CGTA"                        the Capital Gains Tax Act 1979;

     "Cheney Manor Property"       the registered leasehold property at 106
                                   Cheney Manor Industrial Estate with title
                                   number WT114971 more fully described in
                                   section 5 of Part II of Schedule 8;

     "Closing Net Worth"           the amount shown against Closing Net Worth in
                                   the aggregated Completion Balance Sheet
                                   agreed or determined pursuant to clause 3.4
                                   as the case may be;

     "Code"                        The City Code on Take-overs and Mergers;

     "Companies Acts"              the Companies Act 1985, the Criminal Justice
                                   Act 1993, the Companies Consolidation
                                   (Consequential Provisions) Act 1985 and the
                                   Companies Act 1989;

     "Companies"                   Plessey, Plessey Inc., Marconi and AEI
                                   collectively (and "Company" means any one of
                                   the Companies individually);

     "Completion"                  completion of the sale and purchase of the
                                   Shares under this Agreement;

     "Completion Balance Sheets"   balance sheets drawn up as at the Completion
                                   Date for each Group Company and in addition
                                   for Plessey, a consolidated balance sheet of
                                   Plessey and its subsidiaries;

     "Completion Date"             the date of this Agreement;


<PAGE>
                                       32


     "Crompton Road Property"      the unregistered leasehold property
                                   comprising Unit 1, Groundwell Industrial
                                   Estate more fully described in section 2 of
                                   Part I of Schedule 8;

     "Current Properties"          means those properties in Parts I(1) and (2),
                                   II and III of Schedule 8 of this Agreement 
                                   and "Current Property" means any one of them;

     "Data Room"                   the data room established at the offices of
                                   GEC's Solicitors in connection with the
                                   transaction effected by this Agreement;

     "Disclosure Documents"        has the meaning given to it in the Disclosure
                                   Letter;

     "Disclosure Letter"           the letter dated the date hereof written by
                                   GEC to the Purchaser for the purposes of
                                   clause 8 and delivered to the Purchaser's
                                   Solicitors before the execution of this
                                   Agreement;

     "Employee"                    a person employed by any Group Company as of
                                   the Completion Date but excluding (for the
                                   avoidance of doubt) any person who is not so
                                   employed but is seconded at Completion by a
                                   third party to a Group Company;

     "Environment"                 any and all organisms (including without
                                   limitation man), ecosystems, property and the
                                   following media: air, (including without
                                   limitation, the air within buildings and the
                                   air within other natural or man-made
                                   structures whether above or below ground);
                                   water (including without limitation, water
                                   under or within land or in drains or sewers
                                   and coastal and inland waters); and land
                                   (including without limitation, land under
                                   water);

     "Environmental Deed"          means the environmental deed in the Agreed
                                   Form;

     "Environmental Laws"          any and all applicable laws in the relevant
                                   jurisdiction (including for the avoidance of
                                   doubt, common law) (excluding those laws
                                   relating specifically to town planning
                                   matters and to the health and safety of
                                   workers in the work place) and European
                                   Community or European Union regulations,
                                   directives and decisions, statutes,
                                   subordinate legislation (which for the
                                   avoidance of doubt (notwithstanding paragraph
                                   3.7 of Schedule 4 to this Agreement) shall
                                   include Part IIA of the


<PAGE>
                                       33


                                   Environmental Protection Act 1990 and/or
                                   Sections 161A - D of the Water Resources Act
                                   1991 (both as enacted by Section 57 and
                                   paragraph 162 of Schedule 22 respectively of
                                   the Environment Act 1995) and the first set
                                   of guidance notes and regulations adopted
                                   under those provisions (but not subsequent
                                   modifications, amendments or re-enactments of
                                   those provisions or guidance notes or such
                                   regulations to the extent that those
                                   modifications, amendments or re-enactments
                                   would otherwise increase the liability of GEC
                                   under this Agreement)) which were, are, or
                                   which may become applicable to the conduct of
                                   the business of any Group Company or the use,
                                   occupation or ownership of the Current
                                   Properties or the Former Properties and which
                                   have as a purpose or effect the protection
                                   of, and/or the prevention of harm or damage
                                   to, the Environment and/or the provision of
                                   remedies in respect of harm or damage to the
                                   Environment;

     "Environmental Warranty"      any warranty contained in paragraph 22 of
                                   Schedule 3;

     "Exchange Rate"               the closing mid-market spot rate of exchange
                                   in London for the conversion of the relevant
                                   currency into pounds sterling quoted as the
                                   "Closing mid-point" on the Completion Date
                                   for pounds sterling against the relevant
                                   foreign currency in the Financial Times
                                   published in London on the Business Day
                                   following the Completion Date; or

                                   in the case of manifest error in the relevant
                                   edition of the Financial Times or its
                                   non-publication in London on the relevant
                                   Business Day, the rate of exchange certified
                                   by National Westminster Bank Plc as being the
                                   equivalent, as nearly as practicable, of the
                                   above mentioned closing spot rate of exchange
                                   in London on the Completion Date;

     "Disclosure"                  has the meaning given to it in the Disclosure
                                   Letter;

     "Former Properties"           means any property (including, without
                                   limitation, the Carholme Road Property and
                                   the Oldham Properties) used, owned or
                                   occupied at any time prior to Completion by
                                   any Group Company other than those properties
                                   listed in Part I(1) and (2), II


<PAGE>
                                       34


                                   and III of Schedule 8 of this Agreement;

     "GEC's Accountants"           Price Waterhouse;

     "GEC Group"                   GEC and all subsidiaries or subsidiary
                                   undertakings from time to time of GEC (other
                                   than the Group);

     "GEC Group Company"           any member of the GEC Group (and "GEC Group
                                   Companies" means such members collectively);

     "GEC Names"                   the names GEC, General Electric and General
                                   Electric Company;

     "GEC Scheme"                  the retirement benefits scheme established by
                                   GEC and known as the "GEC 1972 Plan"
                                   established by a Definitive Trust Deed and
                                   Rules dated 4th March, 1982 as amended;

     "GEC Securities"              those guarantees, indemnities, performance
                                   bonds or other security or contingent
                                   obligation in the nature of a financial
                                   obligation including, without limitation,
                                   letters of comfort or support which have or
                                   may have been given by GEC or any GEC Group
                                   Company or by Plessey Properties Limited or
                                   by The Plessey Company Limited to the extent
                                   that they secure the obligations of any Group
                                   Company;

     "GEC's Solicitors"            Slaughter and May;

     "Group"                       the Companies and all subsidiaries or
                                   subsidiary undertakings of each Company,
                                   particulars of the subsidiaries of the
                                   Companies being given in Part B of Schedule
                                   7;

     "Group Company"               any member of the Group (and "Group
                                   Companies" means such members collectively);

     "Group Stock"                 the stocks and work in progress owned by the
                                   Group Companies at the Completion Date,
                                   including (without limitation) goods and
                                   other assets purchased for resale, stores,
                                   raw materials, consumables, accessories, and
                                   components purchased for incorporation into
                                   or use in processing products or systems for
                                   sale and all partly finished or finished
                                   products of the Group Companies wherever
                                   located and by whomsoever held, including
                                   items which, although subject to


<PAGE>
                                       35


                                   reservation of title by the seller, are under
                                   the control of the Group Companies;

     "Hardware"                    any computer equipment used by any Group
                                   Company including without limitation PC's,
                                   mainframes, screens, terminals, keyboards,
                                   disks, printers, but excluding all Software;

     "IBM"                         International Business Machines Corporation;

     "IBM Cross Licence"           a patent cross licence agreement dated 1st
                                   January, 1990 between GEC and International
                                   Business Machines Corporation;

     "ICTA 1988"                   the Income and Corporation Taxes Act 1988;

     "Information Memorandum"      the information memorandum dated September
                                   1997 and published in connection with the
                                   transaction effected by this Agreement;

     "Intellectual Property"       patents, trade marks and service marks,
                                   rights in designs, copyrights (whether or not
                                   any of these is registered and including
                                   applications for registration of any such
                                   thing) and all rights or forms of protection
                                   of a similar nature or having an equivalent
                                   or similar effect to any of these which may
                                   subsist anywhere in the world;

     "Information Technology"      any Hardware, Software and communications
                                   facilities;

     "London Stock Exchange"       the London Stock Exchange Limited;

     "Lucent"                      Lucent Technologies Inc.;

     "Management Accounts"         means the financial data relating to the
                                   Group, copies of which are found at section
                                   1.4 of the Schedule to the Disclosure Letter;

     "March 1997 Summary           the unaudited management accounts of the
      Management Accounts"         Group for the year ended on the Accounts Date
                                   a copy of which is disclosed at item 7,
                                   section 1.4 of the Schedule to the Disclosure
                                   Letter;

     "Marconi"                     Marconi Electronic Devices Limited, of which
                                   particulars are given in Part A of Schedule
                                   7;

<PAGE>
                                       36


     "Marconi SA"                  Marconi Electronic Devices SA, of which
                                   particulars are given in Part B of Schedule
                                   7;

     "Names"                       the GEC Names, the AEI Names and the name
                                   Marconi, which is not for this purpose the
                                   defined term;

     "November 1997 Summary        means the unaudited management accounts of
      Management Accounts"         the Group for the eight months ended 30th
                                   November, 1997 a copy of which is disclosed
                                   at item 7, section 1.4 of the Schedule to the
                                   Disclosure Letter;

     "Oldham Agreements"           a business purchase agreement relating to the
                                   business of Plessey at Lansdowne Road, Oldham
                                   and Stockfield Road, Oldham, a wafer
                                   processing and services agreement and a
                                   retained process agreement, in each case
                                   dated on or before the date hereof made
                                   between Hevermill Limited and Plessey;

     "Oldham Properties"           the property of Plessey being factory and
                                   offices at Landsdowne Road, Oldham, title to
                                   which is registered at H.M. Land Registry
                                   under title number GM175967 and the leasehold
                                   property used by Plessey as a car park at
                                   Stockfield Road, Oldham comprised in a lease
                                   dated 29th January, 1988 between (i) The
                                   North Western Electricity Board and (ii)
                                   Ferranti plc;

     "Overriding Objective"        the overriding purpose for which the
                                   Completion Balance Sheets and the Aggregated
                                   Completion Balance Sheet shall be prepared is
                                   to determine the impact of changes on the net
                                   worth of the Group that take place after 31st
                                   December, 1997 and before the Completion
                                   Date. Any change in net worth that:

                                   (a) arises as a result of a re-assessment of
                                       the value of assets and liabilities which
                                       is based on information, facts or matters
                                       which were known or could reasonably be
                                       expected to have been known at 31st
                                       December, 1997; or

                                   (b) does not arise as a result of an event:

                                       (i) occurring after 31st December, 1997;


<PAGE>
                                       37


                                           or

                                       (ii) anticipated in the December 1997
                                            management accounts to occur between
                                            31st December, 1997 and the 
                                            Completion Date failing so to occur,

                                   shall be eliminated from the calculation of
                                   Closing Net Worth;

     "Overseas Offices"            each of the overseas sales offices described
                                   in Part III of Schedule 8 (and "Overseas
                                   Office" means any one of them);

     "Panel"                       the Panel on Take-overs and Mergers;

     "Permits"                     any and all licences, consents, permits,
                                   authorisations or the like made or issued
                                   pursuant to or under, or required by,
                                   Environmental Laws in relation to the conduct
                                   of the business of each Group Company;

     "Planning Acts"               the Town and Country Planning Acts or any
                                   other enactment for the time being in force
                                   relating to the use development and enjoyment
                                   of land and buildings;

     "Plessey"                     Plessey Semiconductors Limited, of which
                                   particulars are given in Part A of Schedule
                                   7;

     "Plessey Inc."                GEC Plessey Semiconductors Inc., of which
                                   particulars are given in Part A of Schedule
                                   7;

     "Plessey Inc. Shares"         the Shares of Plessey Inc.;

     "Proceedings"                 any proceeding, suit or action arising out of
                                   or in connection with this Agreement;

     "Proforma Aggregated          the unaudited aggregated balance sheet of the
     Balance Sheet as at           Group as December, 1997 set out in Schedule
     31st at 31st December, 1997"  9;

     "Properties"                  each of the freehold and leasehold properties
                                   described in Part I of Schedule 8 (and
                                   "Property" means any one of them);


<PAGE>
                                       38


     "Purchase Price"              US$225,000,000;

     "Purchaser's Accountants"     Ernst & Young;

     "Purchaser's Group"           the Purchaser and the Guarantor and all
                                   subsidiaries or subsidiary undertakings from
                                   time to time of the Purchaser and of the
                                   Guarantor;

     "Purchaser's Solicitors"      Morgan Bruce;

     "Restricted Business"         has the meaning ascribed to it in clause 6.2;

     "Restructuring Plan"          the financial restructuring plan relating to
                                   the Group, a copy of which is disclosed at
                                   item 10 of section 1.2(A) of the Schedule to
                                   the Disclosure Letter.

     "RTPA 1976"                   the Restrictive Trade Practices Act 1976;

     "Sale Documents"              has the meaning ascribed to it in clause
                                   14.1; 

     "Schedules"                   the schedules to this Agreement;

     "Scotts Valley Property"      the land located at Scotts Valley more
                                   particularly described in Part III of
                                   Schedule 8;

     "Shares"                      the issued shares in the Companies specified
                                   in Part A of Schedule 7 (or in any of the
                                   Companies);

     "Software"                    any set of instructions for execution by
                                   microprocessor used by any Group Company;

     "Tavistock                    the factory and offices at Tavistock Road,
      Road Property"               Roborough with title numbers DN174695
                                   and DN176582 more fully described in
                                   sections 4 and 5 of Part II of Schedule 8;

     "Tax Covenant"                the tax covenant referred to, inter alia, in
                                   Schedule 4 and set out in Schedule 6;

     "TCGA 1992"                   the Taxation of Chargeable Gains Act 1992;

     "TULCRA"                      the Trade Union and Labour Relations
                                   Consolidation Act 1992;


<PAGE>
                                       39


     "UK Group Company"            each of Plessey, Marconi, AEI, GEC Plessey
                                   Semiconductors Overseas Limited and UK
                                   Cablevision Limited;

     "UK Pensions Company"         each of Plessey, Marconi, AEI and GEC Plessey
                                   Semiconductors Overseas Limited;

     "VAT"                         the tax imposed by the Sixth Council
                                   Directive of the European Communities;

     "VATA 1994"                   the Value Added Tax Act 1994;

     "Warranties"                  the warranties set out in Schedule 3
                                   (Warranties) given by GEC and "Warranty"
                                   shall be construed accordingly;

     "Working Hours"               9.30 a.m. to 5.30 p.m. on a Business Day.

(B)  In this Agreement, unless otherwise specified:-

     (i)  references to clauses, sub-clauses, paragraphs, sub-paragraphs, and
          Schedules are to clauses, sub-clauses, paragraphs, sub-paragraphs of,
          and Schedules to, this Agreement;

     (ii) a reference to any statute or statutory provision shall be construed
          as a reference to the same as it may have been, or may from time to
          time be, amended, modified or re-enacted except to the extent that any
          amendment or modification made after the date of this Agreement would
          increase or alter the liability of GEC under this Agreement;

    (iii) references to "(pound)" are references to the lawful currency for the
          time being of the United Kingdom and references to "US$" or "$" are,
          save where the context otherwise requires, references to the lawful
          currency for the time being of the United States;

     (iv) references to "Tax" or "Taxation" include, without limitation, all
          taxes, levies, duties, imposts, charges and withholdings of any nature
          whatsoever, whether of the United Kingdom or elsewhere, together with
          all penalties, charges and interest relating to them;

     (v)  references to a "company" shall be construed so as to include any
          company, corporation or other body corporate, wherever and however
          incorporated or established;

     (vi) references to a "person" shall be construed so as to include any
          individual, firm, company, government, state or agency of a state or
          any joint venture, association or partnership (whether or not having
          separate legal personality);


<PAGE>
                                       40


    (vii) the term "Relief" shall bear the same meaning as in the Tax Covenant;

   (viii) a person shall be deemed to be connected with another if that person
          is connected with another within the meaning of section 839 ICTA 1988;

     (ix) references to writing shall include any modes of reproducing words in
          a legible and non-transitory form;

     (x)  references to the knowledge or awareness of GEC (or any similar
          expression) in relation to the Warranties shall be deemed to refer to
          the actual knowledge of GEC, having made all reasonable enquiries in
          the context of the relevant Warranty of Ernest Pusey, Tom Urwin, Tony
          Gallagher, Ian Cooper, Philip Wright, Joseph Hustein, Janice Rourke,
          Tony Griffiths and Alan Capper;

     (xi) words or phrases beginning with the introduction of the word "include"
          or "including" are to be interpreted without limitation;

    (xii) references to times of the day are to London time;

   (xiii) headings to clauses and Schedules are for convenience only and do
          not affect the interpretation of this Agreement;

    (xiv) the Schedules and any attachments (but not the Tax Covenant) form
          part of this Agreement and shall have the same force and effect as if
          expressly set out in the body of this Agreement, and any reference to
          this Agreement shall include the Schedules and attachments;

     (xv) references to the masculine gender shall include the feminine and the
          neuter (and vice versa) and references to the singular shall include
          the plural (and vice versa);

    (xvi) references to any English legal term for any action, remedy, method
          of judicial proceeding, legal document, statutory provision, legal
          status, court, official or any legal definition, concept or thing
          shall in respect of any jurisdiction other than England be deemed to
          include what most nearly approximates in that jurisdiction to the
          English legal term save where specific reference is made to the
          relevant term in such other jurisdiction;

   (xvii) references in this Agreement to an amount expressed in pounds
          sterling shall, where applicable, be construed as referring to the
          equivalent amount in any other relevant currency calculated by
          reference to the rate of exchange for such currency prevailing on the
          date of this Agreement;

  (xviii) the term "fairly disclosed" in relation to a disclosure means that
          such disclosure contains adequate detail to enable a reasonable person
          to assess the nature of the fact or matter in question, the Warranty
          or Warranties to which it relates and a broad indication of the
          significance of such fact or matter.

<PAGE>
                                       41


                                   Schedule 2:
                             Completion Arrangements

                                     Part 1

1.   GEC's Obligations

1.1  At Completion, GEC shall deliver or procure the delivery to the Purchaser
     of:-

     (A)  (i)  duly executed transfers in respect of the Shares of Plessey,
               Marconi and AEI in favour of the Purchaser (or its nominee) and
               share certificates representing such Shares in the name of the
               relevant transferors;

          (ii) the share certificates representing the Plessey Inc. Shares in
               the name of the relevant transferor with the transfer form on the
               reverse of each such share certificate duly executed in favour of
               Mitel Inc.;

         (iii) any power of attorney under which any document is executed;

          (iv) any waiver, consents or other documents required to vest in the
               Purchaser the full beneficial ownership of the Shares and enable
               the Purchaser to procure them to be registered in the name of the
               Purchaser or its nominees;

          (v)  all deeds and documents relating to the title of the Group
               Companies to each of the Properties and the Certificated
               Properties;

          (vi) a certificate of title given by GEC's Solicitors in respect of
               each of the Certificated Properties in the Agreed Form;

         (vii) the written resignations of all directors and secretaries of the
               Group Companies (other than any director or secretary whom the
               Purchaser may wish to remain in office) executed as a deed (if
               applicable) in the Agreed Form; and

        (viii) the licences and assignments referred to in clause 10 in the
               Agreed Form executed by the relevant members of the GEC Group
               party thereto.

     (B)  a counterpart original of the Tax Covenant and the Environmental Deed
          duly executed by GEC;

     (C)  the statutory books (which shall be written up to but not including
          the Completion Date), the certificate of incorporation (and any
          certificate of


<PAGE>
                                       42


          incorporation on change of name) and common seal (if any), of each UK
          Group Company;

     (D)  subject to applicable law, letters of resignation from the auditors of
          each of the Companies and other members of the Group in the Agreed
          Form;

     (E)  irrevocable powers of attorney in the Agreed Form executed by each of
          the holders of the Shares in favour of the Purchaser (or its
          nominee(s)) to enable the Purchaser (pending registration of the
          transfers of the Shares) to exercise all voting and other rights
          attaching to the Shares and to appoint proxies for this purpose;

     (F)  a certified copy of a board or board committee resolution of GEC
          approving the execution and entering into by GEC of this Agreement,
          the Tax Covenant, the Disclosure Letter and the transactions
          contemplated herein.

1.2  GEC shall procure that a board meeting of each of the Companies be held at
     which:-

     (A)  it shall be resolved that each of the transfers relating to the Shares
          shall be approved for registration and (subject only to the transfer
          being duly stamped, if so required by applicable law) that each
          transferee be registered as the holder of the Shares respectively in
          the register of members;

     (B)  each of the persons nominated by the Purchaser shall be appointed
          directors, as the Purchaser shall direct, such appointments to take
          effect from Completion, provided the majority of such persons are
          British nationals;

     (C)  the resignation of auditors (if applicable) shall be accepted and
          auditors nominated by the Purchaser shall be appointed to replace them
          (subject to their consent being obtained); and

     (D)  persons not employed by Group Companies (excluding Tom Urwin) shall be
          removed from the bank mandates,

     and that minutes of each duly held board meeting, certified as correct by
     the secretary or other duly authorised officer of the relevant Company and
     the resignations and acknowledgements referred to are delivered to the
     Purchaser's Solicitors.

1.3  GEC shall comply with its obligations set out in Part 3 of this Schedule.

1.4  Immediately following Completion GEC shall deliver or procure the delivery
     to the Purchaser of a licence to the Group Companies substantially in the
     Agreed Form executed by IBM.

1.5  GEC shall grant the release described in clause 7.17 for the purposes set
     out therein and if the conditions therefor have been satisfied.


<PAGE>
                                       43


                                     Part 2

2.   Purchaser's Obligations

2.1  The Purchaser shall:-

     (A)  pay to GEC in immediately available funds by Federal Wire transfer to
          account number 949-1-319993 in the name of The General Electric
          Company plc at The Chase Manhattan Bank, New York, New York
          ABA021000021 the Purchase Price and telephone Katherine Frasco, The
          Chase Manhattan Bank, New York on (201) 599 6683 immediately
          thereafter quoting the Federal Wire ID number of the payment;

     (B)  deliver to GEC, duly executed by the Purchaser, a counterpart original
          of the Tax Covenant and the Environmental Deed;

     (C)  deliver to GEC a certified copy of the board resolutions of the
          Purchaser approving the execution and entering into by the Purchaser
          of this Agreement, the Tax Covenant, the Disclosure Letter, and the
          transactions contemplated hereby;

     (D)  deliver to GEC a certified copy of each resolution referred to in
          clause 7.3;

     (E)  deliver to GEC a legal opinion from legal advisers to the Guarantor in
          Ontario, Canada reasonably acceptable to GEC addressed to GEC in the
          Agreed Form; and

     (F)  deliver to GEC the licences and assignments referred to in clause 10
          in the Agreed Form executed by the relevant members of the Purchaser's
          Group party thereto.

     Payment of the Purchase Price in full in accordance with the foregoing
     shall discharge all the Purchaser's obligations with respect thereto, and
     the Purchaser shall not be concerned as to the application of the Purchase
     Price or any part thereof to which any beneficial owner of any of the
     Shares may be entitled.

2.2  The Purchaser shall comply with its obligations set out in Part 3 of this
     Schedule.

2.3  The Purchaser shall enter into the contract of employment described in
     clause 7.16 with Tom Urwin if the conditions therefor have been satisfied.

                                     Part 3

The Purchaser and GEC shall both procure that each GEC Group Company is released
from the cross-guarantees granted by the Group Companies and the GEC Group
Companies in relation to the GEC Group's and the Group Companies' banking offset
arrangements in the United Kingdom. At Completion the Purchaser and GEC shall
sign and send a letter in the


<PAGE>
                                       44


Agreed Form to The National Westminster Bank Plc confirming that Completion has
occurred.



<PAGE>
                                       45

                                   Schedule 3:
                                 The Warranties

1.   Capacity of GEC and Factual Information in certain Schedules

1.1  GEC has the requisite power and authority to enter into and perform this
     Agreement, the Tax Covenant, the Environmental Deed and the other documents
     to be executed by GEC and delivered at Completion in accordance with this
     Agreement.

1.2  This Agreement constitutes and the Tax Covenant, the Environmental Deed and
     the other documents executed by GEC which are to be delivered at Completion
     will, when executed, constitute binding obligations of GEC.

1.3  The execution and delivery of, and the performance by GEC of its
     obligations under this Agreement, the Environmental Deed and the Tax
     Covenant will not:-

     (A)  result in a breach of any provision of the memorandum or articles of
          association of GEC;

     (B)  result in a breach of any order, judgment or decree of any court or
          governmental agency to which GEC is a party or by which GEC is bound;
          or

     (C)  require the consent of its shareholders.

1.4  The facts set out in Schedules 7 and 8 are true and accurate.

2.   Accounts

2.1  The Accounts:-

     (A)  in respect of each UK Group Company,

          (i)  were, at the time they were prepared, prepared in accordance with
               the then applicable Statements of Standard Accounting Practice,
               as adopted by the Accounting Standards Board and published by the
               Institute of Chartered Accountants in England and Wales, and the
               then applicable Financial Reporting Standards, developed and
               issued by the Accounting Standards Board, applicable to a United
               Kingdom company;

          (ii) showed a true and fair view of the state of affairs of the Group
               Company to which such Accounts relate as at the Accounts Date and
               of that Group Company's profit or loss for the financial year
               ended on such date;


<PAGE>
                                       46


         (iii) were prepared using accounting policies consistent with those
               used in the preparation of accounts for the immediately preceding
               accounting period except as described in any notes thereto; and

          (iv) complied with the relevant requirements of the Companies Act
               1985;

          (v)  were not affected by any material extraordinary or material
               exceptional item;

          (vi) made provision for all liabilities outstanding at the Accounts
               Date which were required to be made in order to give the true and
               fair view aforesaid;

         (vii) make provision or reserve in accordance with the principles set
               out in the notes included in the Accounts for all Taxation liable
               to be assessed or for which it may be accountable in respect of
               the period ended on the Accounts Date.

     (B)  in respect of any other Group Company (other than Plessey Inc.)

          (i)  have been drawn up using local generally accepted accounting
               principles and, in the case of Plessey GmbH, Plessey France and
               Marconi SA, have been drawn up also on the bases set out in the
               notes to the accounts; and

          (ii) were prepared using accounting policies consistent with those
               used in the preparation of accounts for the immediately preceding
               accounting period except as described in any notes thereto.

     (C)  in respect of Plessey Inc., have been prepared for incorporation in
          the consolidated accounts of GEC which are prepared in accordance with
          UK generally accepted accounting principles, and were prepared using
          accounting policies consistent with those used in the preparation of
          accounts for the immediately preceding accounting period.

2.2  (A)  The accounting records of each Group Company are in its possession and
          have been fully, properly and accurately kept and completed to the
          extent required by law.

     (B)  The March 1997 Summary Management Accounts and the November 1997
          Summary Management Accounts have each:-

          (i)  been compiled from information available at the time they were
               prepared and in accordance with the Group's policy for the
               compilation of management accounts as disclosed in item 8,
               section 1.4 of the Schedule to the Disclosure Letter;


<PAGE>
                                       47


          (ii) been compiled in accordance with the accounting policies set out
               in the Accounts of Plessey;

         (iii) been properly and accurately extracted from the accounting
               records of the Group Companies;

          (iv) been accurately aggregated, subject to and in accordance with
               such policy aforesaid;

          (v)  are not known by GEC to contain any material error or omission.

     (C)  The March 1997 Summary Management Accounts summarised the financial
          information used by GEC in the production of its consolidated
          financial statements for the financial period ended on the Accounts
          Date and no adjustment (other than an adjustment in the GEC
          consolidated accounts for the expected loss on disposal) was made to
          such financial information for such purposes.

2.3  In the Accounts of the UK Companies and Plessey Inc. the stock and work in
     progress of each Group Company was treated in accordance with all
     applicable Accounting Standards and in the other Group Companies Accounts'
     the stock and work in progress was treated in accordance with local
     equivalent standards.

2.4  No part of the amounts included in the Accounts as owing by any individual
     debtor in excess of (pound)25,000 was overdue by more than 120 days at the
     Accounts Date and was not provided for in full or subsequently paid.

3.   Pensions

3.1  There are no superannuation or retirement benefits or life assurance funds
     schemes or arrangements provided by or on behalf of each UK Pensions
     Company under which any of the Employees is entitled to life assurance,
     pension or other retirement benefits save in accordance with the GEC
     Scheme.

3.2  No UK Pensions Company is under any contractual obligation to provide life
     assurance, pension or other retirement benefits in respect of any of the
     Employees save in accordance with the GEC Scheme.

3.3  No power to augment benefits under the GEC Scheme has been exercised prior
     to Completion in relation to those of the Employees who are members of it.

3.4  Each UK Pensions Company is a participating employer for the purpose of the
     GEC Scheme and has fulfilled all its obligations thereunder (including any
     obligations to pay contributions).

3.5  Apart from the GEC Scheme, any statutory obligation and other schemes set
     out in documents at File F of Annex 1 of the Schedule to the Disclosure
     Letter no UK Group


<PAGE>
                                       48


     Company is under any legal liability or obligation or a party to any
     ex-gratia arrangement or promise to pay pensions, gratuities,
     superannuation or the like to or for any of its past or present officers or
     employees or their dependants; and, save as aforesaid, there are no
     retirement benefit, or pension or death benefit, or similar schemes or
     arrangements in relation to or binding on any UK Group Company or to which
     any UK Group Company contributes.

3.6  The GEC Scheme:

     (A)  is an exempt approved scheme for the purposes of Chapter I of Part XIV
          of ICTA 1988;

     (B)  is not a contracted-out scheme under Section 7(3) of the Pension
          Schemes Act 1993; and

     (C)  conforms with the preservation requirements referred to in Section
          69(2) of the Pension Schemes Act 1993.

3.7  The GEC Scheme has been operated in all material respects in accordance
     with all the then applicable legal requirements in relation to each UK
     Pensions Company and the Employees and there are no outstanding claims or
     so far as GEC is aware matters likely to give rise to claims against the
     GEC Scheme by any UK Pensions Company or any Employee (other than routine
     claims for benefits).

3.8  Material details of any superannuation or retirement benefits or life
     assurance funds, schemes or arrangements (other than state schemes)
     provided by or on behalf of each Group Company under which any of the
     overseas Employees (save those in the United States) is entitled to life
     assurance, pension or other retirement benefits have been disclosed in
     Files G and H of Annex I of the Schedule to the Disclosure Letter. So far
     as GEC is aware, such schemes have been operated in all material respects
     in accordance with all the then legal applicable requirements in each
     relevant jurisdiction and there are no outstanding material claims or
     matters likely to give rise to such claims other than routine claims for
     benefits.

3.9  The Plessey Inc. Scheme

     (A)  Generally. Files G and H of Annex 1 of the Schedule to the Disclosure
          Letter contain a true and complete list of each plan, program, policy,
          practice, contract, agreement or other arrangement providing for
          compensation, severance, termination pay, performance awards, stock or
          stock-related awards, fringe benefits or other employee benefits in
          kind, whether funded or unfunded, including without limitation, each
          "employee benefit plan" within the meaning of Section 3(3) of the
          Employee Retirement Income Security Act of 1974, as amended ("ERISA")
          ("Employee Plan") which is now maintained, contributed to, or required
          to be contributed to by Plessey Inc. for the benefit of any current or
          former employee, officer, independent contractor, agent or consultant
          working for Plessey Inc. ("U.S. Employee"). Plessey Inc. will make


<PAGE>
                                       49


          available or provide to Purchaser prior to the Completion Date true
          and complete copies of all documents, if any, embodying each Employee
          Plan, including all amendments thereto and written interpretations
          thereof, the two most recent annual reports filed (Form 5500 Series
          with applicable schedules) with respect to each Employee Plan required
          under ERISA; the most recent summary plan description, if any, with
          respect to each Employee Plan required under ERISA; the most recent
          favourable determination letter from the Internal Revenue Services
          ("IRS"), if applicable, with respect to each Employee Plan; and all
          material communications, if any, to any U.S. Employee relating to each
          Employee Plan.

     (B)  Qualified Plans. Except as otherwise set forth in this paragraph each
          Employee Plan that is intended to be qualified under the Internal
          Revenue Code of 1986, as amended ("the Code"), has received a
          determination letter from the IRS to the effect that the form of such
          Employee Plan and related trust are qualified and exempt from Federal
          income taxes under Sections 401(a) and 501(a) of the Code,
          respectively, such determination letter includes any new or modified
          requirements under the Tax Reform Act of 1986 and subsequent
          legislation enacted thereafter prior to the Uruguay Round Agreements
          Act and no such determination letter has been revoked, nor to the
          knowledge of Plessey Inc., has revocation been threatened. To Plessey
          Inc.'s knowledge, and except as otherwise set forth in this paragraph,
          nothing has occurred or is reasonably expected to occur that would
          adversely affect the qualified status of the Employee Plan or any
          related trust subsequent to the issuance of such determination letter.
          Notwithstanding the foregoing the determination letter request for the
          GEC - USA Employee Savings and Investment Plan is pending and
          contributions may have to be made to such plans for seasonal and part
          time employees excluded from the Plan between July 1, 1990 and
          December 31, 1993.

     (C)  Compliance. Except as otherwise set forth in paragraph (B), Plessey
          Inc. has performed in all material respects all obligations required
          to be performed under each Employee Plan, and each Employee Plan has
          been established and maintained in all material respects in accordance
          with its terms and in compliance with all applicable laws, statutes,
          orders, rules and regulations, including but not limited to ERISA or
          the Code. No Employee Plan is a defined benefit plan within the
          meaning of Section 3(35) of ERISA, nor a multi-employer plan within
          the meaning of Section 3(37) of ERISA, and Plessey Inc, has no
          liability with respect to any such plan as a result of having been
          treated as part of a "single employer" within the meaning of Section
          414(b), (c), (m), (n) and (o) of the Code, nor is there any basis for
          such liability being imposed. Except as set forth in paragraph (B)
          there are no investigations, claims, suits or proceedings pending or
          so far as Plessey Inc. is aware, threatened or anticipated (other than
          routine claims for benefits) against any Employee Plan or the assets
          of any Employee Plan and so far as Plessey Inc. is aware, there are no
          facts that could give rise to any material liability in the event of
          any such investigation, claim, suit or proceeding. All 


<PAGE>
                                       50


          outstanding indebtedness for services performed or accrued vacation or
          holiday, sick or personal day pay, earned commissions, accrued bonuses
          or their benefits owed to any U.S. Employee been paid when due or
          accrued on the books of Plessey Inc. So far as Plessey Inc. is aware
          no "prohibited transaction" within the meaning of Section 4975 of the
          Code or Section 406 of ERISA has occurred with respect to any Employee
          Plan; no action or failure to act with respect to any Employee Plan
          could subject Plessey Inc., the Purchaser or any of its affiliates or
          any Employee Plan to any material tax, penalty or other liability for
          breach of fiduciary duty or otherwise, under ERISA or any other
          applicable law, whether by way of indemnity or otherwise, except as
          set forth in paragraph (B).

     (D)  No Post-Employment Obligations. Plessey Inc. has never promised,
          represented to, or contracted with (orally or in writing) any U.S.
          Employee (individually or as a group) that life insurance, medical or
          other employee welfare benefits (other than severance and accrued
          vacation and holiday pay) would be provided upon their retirement or
          termination of employment, except to the extent required by statute.

     (E)  COBRA. Each "group health care" within the meaning of Section
          498OB(g)(2) of the Code maintained by Plessey Inc. or any entity with
          which it is considered a "single employer" within the meaning of
          Section 414(b), (c), (m), (n) and (o) of the Code, has been
          administered in good faith in compliance with the continuation
          coverage requirements contained in the Consolidated Omnibus Budget
          Reconciliation Act of 1985, as amended ("COBRA") as set forth at
          Section 4980B of the Code and any regulations promulgated or proposed
          thereunder.

     (F)  Effect of Transaction. The execution of this Agreement and the
          consummation of the transactions contemplated hereby will not (either
          alone or when taken together with any additional or subsequent events)
          constitute an event under any Employee Plan that, by itself, will or
          is reasonably likely to result in any payment, upon a change in
          control or otherwise, whether of severance, accrued vacation or
          otherwise, acceleration, vesting, distribution or increase in benefits
          which will or may be made by Plessey Inc., the Purchaser or any of its
          affiliates with respect to any U.S. Employee which will be
          characterised as an "excess parachute payment" within the meaning of
          Section 280G(b)(1) of the Code.

     (G)  Employment Matters. Plessey Inc. (i) is in compliance in all material
          respects with all applicable federal and state laws, rules, and
          regulations respecting employment, employment practices, terms and
          conditions of employment and wages and hours, in each case, with
          respect to U.S. Employees; (ii) has withheld all amounts required by
          law or by agreement to be withheld from the wages, salaries, and other
          payments to U.S. Employees; (iii) is not liable for any arrears of
          wages or any taxes or any penalty for failure to comply with any of
          the foregoing; and (iv) (other than routine payments to be made in the


<PAGE>
                                       51


          normal course of business and consistent with past practice) is not
          liable for any payment to any trust or other fund or to any
          governmental or administrative authority with respect to unemployment
          compensation benefits, Social Security or other benefits for U.S.
          Employees, except in each case under (i) to (iv) above where the
          failure to be in compliance would not, singly or in the aggregate,
          have a material adverse effect on Plessey Inc., its financial
          condition or business and except for contributions required to be made
          to the GEC USA Employees' Savings and Investment Plan and the GEC USA
          Employees Welfare Benefit Plan.

     (H)  No Other Employment Plans. There is no plan or commitment whether
          legally binding or not, to establish any new Employee Plan, to modify
          (other than by way of termination) any Employee Plan (except to the
          extend required by law) or to enter into any new Employee Plan; nor
          has any intention or commitment to do any of the foregoing been
          communicated except that the GEC USA Employee Savings and Investment
          Plan will be amended to include certain part-time employees for the
          period commencing July 1, 1990 and ending December 31, 1993.

4.   Arrangements between the GEC Group and the Group

     So far as GEC is aware, save for indebtedness arising in the ordinary
     course of trading, no indebtedness (actual or contingent) and no contract
     other than at arm's length which is material in the context of the business
     of the Group as a whole, is outstanding between any Group Company and any
     GEC Group Company.

5.   Group Structure

5.1  The Shares comprise the whole of each respective Company's issued and
     allotted share capital and all of them are fully paid up.

5.2  There is no agreement or commitment outstanding which calls for the
     allotment, issue or transfer of, or accords to any person the right
     (conditionally or unconditionally) to call now or in the future for the
     allotment or issue of, any shares (including the Shares) or debentures in
     or securities of any Company.

5.3  Save for any interests held in another Group Company, no Group Company has
     any interest in the share capital of any body corporate or undertaking.

5.4  No Group Company acts or carries on business in partnership or through a
     joint venture with any other person or is a member (otherwise than through
     the holding of share capital) of any corporate or unincorporated body,
     undertaking or association or holds or is liable on any share or security
     which is not fully paid up or which carries any liability.

5.5  No UK Group Company has any branch, place of business or permanent
     establishment outside the United Kingdom.


<PAGE>
                                       52


5.6  No Group Company has, at any time in the last three years, repaid, redeemed
     or purchased (or agreed to repay, redeem or purchase) any of its shares, or
     otherwise reduced (or agreed to reduce) its issued share capital or any
     class of it or capitalised (or agreed to capitalise) in the form of shares,
     debentures or other securities or in paying up any amounts unpaid on any
     shares, debentures or other securities, any profits or reserves of any
     class or description or passed (or agreed to pass) any resolution to do so.

5.7  The entire authorised capital stock of Plessey Inc. consists of 1000 common
     shares all of which are issued and outstanding and no shares of Plessey
     Inc. are held in treasury. All of the issued and outstanding shares of
     Plessey Inc. have been duly authorised, are validly issued, fully paid, and
     non assessable, and are held of record by GEC Inc. as set forth in Schedule
     7 of this Agreement. There are no outstanding or authorised options,
     warrants, purchase rights, subscription rights, conversion rights, exchange
     rights, or other contracts or commitments that could require Plessey Inc.
     to issue, sell, or otherwise cause to become outstanding any of its capital
     stock. There are no outstanding or authorised stock appreciation, phantom
     stock, profit participation, or similar rights with respect to Plessey Inc.
     capital stock. There are no voting trusts, proxies or other agreements or
     understandings with respect to the voting of the capital stock of Plessey
     Inc.

6.   Options, Mortgages and Other Encumbrances

     There is no option, right to acquire, mortgage, charge, pledge, lien or
     other form of security or encumbrance or equity on, over or affecting the
     Shares or any of them and there is no agreement or commitment to give or
     create any and no claim has been made by any person to be entitled to any.

7.   Statutory Returns

7.1  The copies of the constitutional documents of each Group Company which are
     in the Data Room are complete and accurate in all material respects, have
     attached to them copies of all resolutions and other documents required by
     law to be so attached and set out to the extent required by applicable law
     the rights and restrictions attaching to each class of share capital of
     that Group Company.

7.2  The statutory books (including all registers and minute books) of each
     Group Company have, in the three years ended on the date of this Agreement,
     been properly kept as required by law and no written notice or allegation
     that has not been complied with that any of them is incorrect or should be
     rectified has been received in the three years ended on the date of this
     Agreement.

7.3  All documents which should have been delivered within the last three years
     by each Group Company to the Registrar of Companies (or its equivalent in
     respect of jurisdictions other than England and Wales) have, in all
     material respects, been properly so delivered.


<PAGE>
                                       53


8.   Contracts

8.1  There are no subsisting contracts to which any Group Company is a party
     which were entered into otherwise than in the ordinary course of business
     of that Group Company.

8.2  The details of the agency and distributorship agreements to which any Group
     Company is party are attached to the Disclosure Letter.

8.3  There is not outstanding any guarantee, indemnity, performance bond or
     suretyship given by any Group Company to secure any obligation of any
     person not within the Group.

8.4  There are no GEC Securities.

8.5  Material details of the Group's only contracts under which deliveries are
     still due to be made at the date hereof:-

     (A)  with its largest 22 customers by sales values measured on the basis of
          the aggregate of (x) amounts billed by the Group for the period 1st
          April, 1997 to 30th September, 1997 and (y) the value of outstanding
          orders scheduled for delivery by 31st March, 1998; and

     (B)  with its largest ten suppliers (but ignoring suppliers of capital
          equipment) measured by purchase values for the year ended 31st March,
          1997;

     are attached to the Disclosure Letter. For these purposes, "customer" and
     "supplier" means a person (the "contracting party") together with its
     subsidiaries and subsidiary undertakings who has contracted with a member
     of the Group for the purchase or, as the case may be, the supply of goods
     and, in the case of a customer, includes a person (a "sub-contractor") with
     whom any such contracting party (including its subsidiaries and subsidiary
     undertakings) has contracted for the purchase of goods of the same type
     where the sub-contractor has contracted with the relevant member of the
     Group for the purchase of such goods, taken as a single customer or, as the
     case may be, as a single supplier.

8.6  There is attached to the Disclosure Letter a list of all hire purchase
     contracts and finance and operating leases which relate to assets used by
     any Group Company to which such Group Company is a party and which involves
     an annual charge in excess of (pound)25,000 and the term of which will not
     expire within 6 months from the date hereof. The aggregate annual charge
     outstanding at 31st December, 1997 in respect of hire purchase contracts
     and finance and operating leases (in each case the annual charge for which
     does not exceed (pound)25,000) did not exceed (pound)100,000.

8.7  (A)  The Group will not at Completion be in default (otherwise than arising
          from any default relating to change of control) under contracts with
          customers which will following Completion result in contractual
          liabilities in relation to


<PAGE>
                                       54


          sales made before Completion (or only not made before Completion
          because of default in delivery at the time stipulated in such
          contract, but then only in relation to such late delivery) for such
          default exceeding 1.75 per cent. of the Group's preceding 12 month's
          sales but excluding any defaults which are the subject of the covenant
          in clause 5.4 of this Agreement.

     (B)  There is attached at item 26 of section 7.2 of the Schedule to the
          Disclosure Letter a list of the aggregate sales from 1st April, 1997
          to 31st December, 1997 for each product for which such aggregated
          sales (at invoiced value) were less than the aggregated GPS Standard
          Cost for the Financial Year 1997 as set out at item 10 of section 1.11
          of the Schedule to the Disclosure Letter.

8.8  No Group Company is in default under any obligations existing by reason of
     membership of any association or body.

8.9  The Group will not at Completion be in default (otherwise than arising from
     any default relating to change of control) under contracts with suppliers
     which will result in such supplier validly claiming material damages from
     the Group.

9.   Events since the Accounts Date

9.1  Since the Accounts Date:-

     (A)  the business of the Group has been carried on in its ordinary course;

     (B)  no resolution of any Group Company in general meeting has been passed;
          and

     (C)  no dividend or distribution has been declared, paid or made and no
          share or loan capital has been issued or agreed to be issued or put
          under option by any Group Company.

9.2  A list of all individual legally binding capital commitments of each Group
     Company in excess of US$100,000 as at 30th September, 1997 is attached to
     the Disclosure Letter.

10.  Grants

          A list of all grants and a summary of the amounts received and the
          amounts outstanding, aid and subsidies paid or made to any Group
          Company during the last six years by, and of all outstanding claims by
          any Group Company for any such grant, aid or subsidy from, any
          supra-national, national or local authority or government agency are
          set out in the Disclosure Letter.


<PAGE>
                                       55


11.  Licences and restrictions on the business of each Group Company

11.1 Each Group Company has all material statutory and regulatory licences,
     consents, permissions and approvals required for the carrying on of the
     business now being carried on by it.

11.2 All licences, consents, permissions and approvals referred to in
     sub-paragraph 11.1 above are in full force and effect and GEC is not aware
     that there are any circumstances which indicate that there is a substantial
     likelihood that any of such licences, consents, permissions or approvals
     will or may be revoked or not renewed or which may confer a right of
     revocation or that the terms may be altered to the detriment of the
     relevant Group Company.

12.  Bank Accounts and Borrowings

12.1 Details of all bank accounts maintained or used by each Group Company
     (including, in each case, the name and address of the bank with whom the
     account is kept and the number and nature of the account) are set out in or
     attached to the Disclosure Letter.

12.2 Details of all overdraft, loan and other financial facilities available to
     the Group are set out in the Disclosure Letter.

12.3 Except for any borrowings under the overdraft, loan and other financial
     facilities referred to in sub-paragraph 12.2 above, no Group Company has
     any outstanding loan capital nor has any Group Company incurred or agreed
     to incur any borrowing which it has not repaid or satisfied, or lent or
     agreed to lend any money which has not been repaid to it or owns the
     benefit of any debt present or future (other than debts due to it or owed
     to it in the ordinary course of trading) save in any of the foregoing cases
     for any such matters or arrangements between Group Companies.

13.  Insolvency

13.1 No resolution has been passed for the winding up of any Group Company or
     for a provisional liquidator to be appointed in respect of any Group
     Company and no meeting has been convened and, so far as GEC is aware, no
     petition has been presented for the purpose of winding up any Group
     Company.

13.2 No administration order has been made and, no petition for such an order
     has been presented in respect of any Group Company.

13.3 (A)  No receiver (which expression shall include an administrative
          receiver) has been appointed in respect of any Group Company or all or
          any of its assets;

     (B)  Plessey GmbH has not itself filed nor has any other person filed a
          petition for the institution of insolvency proceedings against Plessey
          GmbH nor has


<PAGE>
                                       56


          Plessey GmbH offered or made a settlement or moratorium in court or
          out of court with its creditors generally.

13.4 (A)  No Group Company is insolvent, or unable to pay its debts within the
          meaning of section 123 Insolvency Act 1986, or has stopped paying its
          debts as they fall due.

     (B)  Neither Marconi SA or Plessey France SA is insolvent or unable to pay
          its debts ("en etat de cessation des paiements") within the meaning of
          French law No. 85-98 of 25th January 1985 or has stopped paying its
          debts as they full due.

13.5 (A)  No voluntary arrangement has been proposed under section 1 Insolvency
          Act 1986 in respect of any Group Company.

     (B)  No voluntary arrangement ("Reglement amiable") has been proposed under
          French law No. 84-148 of 1st March, 1984 in respect of Marconi SA or
          Plessey France SA.

14.  Litigation

14.1 Other than in respect of the payment and collection of debts in the
     ordinary course of its business, no Group Company is engaged in any
     litigation, arbitration or criminal proceedings, whether as plaintiff,
     defendant or otherwise, and no litigation, arbitration or criminal
     proceedings by or against any Group Company is pending, or (so far as GEC
     is aware) threatened, the adverse determination of which will result in a
     financial liability of more than(pound)50,000 for any Group Company or the
     imposition of an injunction or similar order on it provided that this shall
     not apply to contracts with customers to which the provisions of paragraph
     8.7(A) above shall apply.

14.2 No Group Company is subject to any order or judgment given by any court
     (including, without limitation, any injunction or order for specific
     performance) which is still in force and has not given any undertaking to
     any court arising out of any legal proceedings which remains outstanding.

14.3 No claims in excess of (pound)50,000 have been made against any Group
     Company by any Employee in respect of any personal accident or injury that
     occurred at the premises of a Group Company.

14.4 No Group Company has outstanding any written claim nor, so far as GEC is
     aware, are any claims pending or threatened in writing in each case in
     connection with the sale of those businesses, undertakings and companies
     listed at item 7.6 of section 1 of the Schedule to the Disclosure Letter
     alleging a failure on the part of the seller thereof to comply prior to
     Completion with its obligations under those agreements listed at that item.


<PAGE>
                                       57


15.  Compliance with Laws and No Investigation

15.1 So far as GEC is aware, no Group Company's business is being conducted in
     contravention of any relevant legislation which contravention has a
     material and adverse effect on the business of the Group as a whole.

15.2 So far as GEC is aware, no Group Company has received written notification
     that any non routine investigation or inquiry is being conducted by any
     governmental or other regulatory body in respect of its affairs in respect
     of which there is a substantial likelihood that such investigation or
     inquiry will lead to proceedings, the adverse determination of which would
     have a material and adverse effect on the business of the Group as a whole.

15.3 No Group Company is now, nor has it during the last six years been, a party
     to any agreement or arrangement or concerted practice and it does not
     conduct nor has it conducted its business affairs in a manner which:

     (A)  is subject to registration but not registered under the Restrictive
          Trade Practices Acts 1976 and 1977;

     (B)  contravenes the provisions of the Resale Prices Act 1976 or the
          Competition Act 1980;

     (C)  infringes either Article 85 or 86 of the Treaty of Rome establishing
          the European Community; or

     (D)  is void or unenforceable (whether in whole or in part) by virtue of,
          or may render it liable to proceedings under, the legislation referred
          to in paragraphs 15.4 (A) to (C) below.

15.4 No Group Company is now nor has it during the last six years been, a party
     to any agreement or arrangement or been involved in any business practice
     in respect of which an undertaking has been given by or an order made
     against or in relation to it pursuant to any anti-trust or similar
     legislation in any jurisdiction in which it carries or carried on business
     or has or had assets or sales, including (without limitation):

     (A)  Article 85 or 86 of the Treaty of Rome establishing the European
          Community;

     (B)  the Restrictive Trade Practices Acts 1976 and 1977;

     (C)  the Resale Prices Act 1976;

     (D)  the Fair Trading Act 1973 or any secondary legislation adopted under
          that Act; and

     (E)  the Competition Act 1980.


<PAGE>
                                       58


15.5 No Group Company is now, nor has it during the last six years been, a party
     to any agreement or arrangement or been involved in any business practice
     in respect of which:

     (A)  any non-routine request for information, statement of objections or
          similar matter has been received by any Group Company from any court,
          tribunal, governmental, national or supra-national authority; or

     (B)  an application for negative clearance or exemption has been made to
          the Commission of the European Communities.

15.6 So far as GEC is aware, no Group Company has received any aid granted by a
     Member State of the European Union or through Member State resources in any
     form whatsoever which distorts or threatens to distort competition by
     favouring certain undertakings or the production of certain goods, which
     aid affects trade between member states and is incompatible with the Common
     Market.

16.  Assets

16.1 Each of the tangible assets (other than the Properties, the Certificated
     Properties and the Overseas Offices) included in the Accounts as being
     owned by any Group Company, or acquired by such Group Company since the
     Accounts Date and which, if acquired before such date, would have been
     included in the Accounts, (other than assets sold, realised or applied in
     the normal course of business) where such asset has a current net book
     value in excess of(pound)1,000 and is used by or is available for use by
     that Group Company at the date of this Agreement is owned both legally and
     beneficially by that or another Group Company and no Group Company has
     granted any option, right to acquire, mortgage, charge, pledge, lien or
     other form of security or encumbrance over any such asset, subject in any
     case to retention of title and vendor's liens arising in the ordinary
     course of business and liens arising by operation of law.

16.2 Plant and machinery, (but excluding vehicles), which had an original cost
     in excess of (pound)100,000 and has an existing book value in excess of
     (pound)25,000 used in the business of any Group Company is, taken as a
     whole, in reasonable condition (subject to fair wear and tear) having
     regard to its age and in satisfactory working order.

17.  Ownership of Land

17.1 The Properties (save for those listed at paragraph 3 of Part I to Schedule
     8), the Certificated Properties and the Overseas Offices are the only
     immovable properties owned, used or occupied by a Group Company or in
     respect of which any Group Company has any estate, interest, right or
     ownership.

17.2 In relation to (a) the Overseas Offices at Scotts Valley, Santa Cruz and
     (b) each of the Properties save for those listed at paragraph 3 of Part I
     to Schedule 8:-


<PAGE>
                                       59


     (A)  the relevant Group Company specified in Schedule 8 as owner of the
          Property or Overseas Offices (the "Owner") is legally and beneficially
          entitled to the Property or Overseas Offices and the Owner has under
          its control all of the title deeds and documents listed in the
          Disclosure Letter;

     (B)  the Owner holds the Property or Overseas Offices subject to the
          leases, underleases, sub-leases, tenancies or licences particulars of
          which are set out in the Disclosure Letter but is otherwise in
          physical possession and actual occupation of the Property or Overseas
          Offices;

     (C)  neither GEC nor the relevant Group Company has been notified in
          writing nor is it aware of a material breach of any provision of any
          lease under which the Owner holds the Property or Overseas Offices
          where such breach is still outstanding;

     (D)  neither GEC nor the relevant Group Company has received nor is it
          aware that the Owner as its owner has received notice in writing of
          any outstanding breach under planning legislation in respect of the
          Property or Overseas Offices;

     (E)  neither GEC nor the relevant Group Company has received nor is it
          aware that the Owner has received notice in writing of any legal
          proceedings or notice in writing of any circumstance which in the
          reasonable opinion of GEC or Owner Company will result in legal
          proceedings in respect of the Property or Overseas Offices which are
          or are likely to be material in the context of the business carried on
          by the Group as a whole.

17.3 Neither GEC nor the relevant Group Company has received nor is it aware
     that any Group Company has received notice in writing of any liability
     (whether actual or contingent) in relation to any leasehold property which
     such Group Company has assigned or otherwise disposed of.

17.4 The information provided by GEC and by any member of the Group for the
     purposes of each certificate of title is, so far as GEC is aware, true,
     complete and accurate in all material respects and is not materially
     misleading.

17.5 Each of the Overseas Offices is held pursuant to the tenancy agreement or
     licence described in Part III of Schedule 8 and neither GEC nor the
     relevant Group Company has received or been notified in writing or is aware
     of a material or persistent breach of that tenancy agreement or licence (as
     the case may be) where such breach is still outstanding.

17.6 In relation to each of the Properties save for those listed at paragraph 3
     of Part I to Schedule 8:

     (A)  The Properties are free from any mortgage debenture, charge, rent
          charge, lien or any other encumbrance securing the repayment of monies
          or other 


<PAGE>
                                       60


          obligation of monies or other obligation of liability of any of the
          Group Companies or any other person.

     (B)  The Properties are not subject to any outgoings other than business
          rates, water rates and insurance premiums and in the case of leasehold
          properties rent and service charges.

     (C)  So far as GEC is aware the Properties are not subject to any
          restrictive covenants, stipulations, easements, profits a prendre,
          wayleaves, licences, grants, restrictions overriding interests or
          other similar rights vested in third parties.

     (D)  So far as GEC is aware none of the Properties is affected by any
          compulsory purchase order, notice or resolution.

     (E)  Where any of the matters referred to in paragraphs 17.6(A), (B) and
          (C) have been disclosed in the Disclosure Letter, GEC is not aware
          that it has received notice in writing of any breach that is still
          outstanding.

     (F)  So far as GEC is aware the Properties are not subject to any option,
          right of pre-emption or right of first refusal.

     (G)  So far as GEC is aware it has not received notice of any breach of
          building regulations that is still outstanding.

     (H)  So far as GEC is aware the Group Companies have not received notice of
          any breach of the terms of the following which is still outstanding:

          (i)  all permissions, orders and regulations applicable to the
               Properties;

          (ii) all agreements under the Town and Country Planning Act 1971 s52
               made or planning obligations under the Town and Country Planning
               Act 1990 s106 undertaken with respect to the Properties or other
               relevant legislation; and

         (iii) all agreements made under the Highways Act 1980 s38 with respect
               to the Properties or other relevant legislation.

     (I)  The buildings and other structures on the Properties are in sufficient
          repair to be fit for the purposes for which they are being used.

     (J)  So far as GEC is aware there are no outstanding disputes with any
          adjoining or neighbouring owner with respect to boundary walls and
          fences or with respect to any easement or right over or means of
          access to any of the Properties.

     (K)  None of the Properties is affected by past or present mining activity.


<PAGE>
                                       61


     (L)  No building or structure on the Properties is affected by structural
          damage such that it is not fit for the purposes for which it is being
          used.

     (M)  So far as GEC is aware it has not received any notice that any
          licences, consents and approvals required from the landlords and
          superior landlords under any leases of the Properties have not been
          obtained nor that the covenants on the part of the tenant contained in
          any licences consents and approvals have failed to be duly performed
          and observed and there are no rent reviews under the leases of the
          Properties held by any Group Company currently in progress.

     (N)  So far as GEC is aware no obligation necessary to comply with any
          notice or other requirement given by the landlord under any leases (or
          underleases) of the Properties is outstanding and unobserved or
          unperformed.

     (O)  There is no obligation to reinstate any of the Properties by removing
          or dismantling any alteration made to it by any Group Company or so
          far as GEC is aware any predecessor in title to any Group Company.

17.7 In relation to each of the Properties (save for those listed at paragraph 3
     of Part I to Schedule 8) and the Overseas Offices:

     (A)  So far as GEC is aware it has not received any notice of
          non-compliance with applicable statutory and bylaw requirements with
          respect to the Properties and the Overseas Offices and in particular
          (but without limitation) with the requirements as to fire precautions
          and under the Public Health Acts and the Offices Shops & Railway
          Premises Act 1963, the Health & Safety at Work Act 1974 and the
          Workplace (Health, Safety and Welfare) Regulations 1992 which is still
          outstanding.

     (B)  So far as GEC is aware it has not received any notice of any
          outstanding and unobserved or unperformed obligation with respect to
          the Properties and the Overseas Offices necessary to comply with the
          requirements (whether formal or informal) of any competent authority
          exercising statutory or delegated powers.

     (C)  So far as GEC is aware each of the Properties and the Overseas Offices
          is entitled to rights of access and rights to services sufficient for
          the purposes for which the relevant Property or Overseas Office is
          being used.

     (D)  So far as GEC is aware the principal means of access to the Properties
          and the Overseas Offices is over roads which have been taken over by
          the local or other highway authority and which are maintainable at the
          public expense and no means of access to the Properties is shared with
          any other party nor subject to rights of determination by any other
          party.


<PAGE>
                                       62


     (E)  Each of the Properties and the Overseas Offices enjoys the mains
          services of water drainage electricity and gas.

     (F)  No licences are required whether under the Licensing Act 1988 or
          otherwise in relation to any of the Properties or the Overseas
          Offices.

17.8 The information contained in Schedule 8 Part I and Part III as to the
     tenure of each of the Properties and the Overseas Offices, the principal
     terms of the leases or licences held by a Group Company (and the principal
     terms of the tenancies and licences subject to and with the benefit of
     which the Properties and the Overseas Offices are held) is true and
     accurate in all respects.

17.9 Except in relation to the Properties, the Certificated Properties and the
     Overseas Offices, no Group Company has any liabilities (actual or
     contingent) arising out of the conveyance, transfer, lease, tenancy,
     licence agreement or other document relating to land or premises or an
     interest in land or premises, including without limitation, leasehold
     premises assigned or otherwise disposed of.

18.  Intellectual Property

18.1 (A)  Details of all registered Intellectual Property legally and
          beneficially owned by a Group Company and details of all applications
          for registration thereof are set out in the Disclosure Letter.

     (B)  Such intellectual property is free from all charges or similar
          encumbrance, save for any licence disclosed pursuant to Warranty 18.4.

18.2 All renewal fees and administrative steps required for the maintenance of
     the rights disclosed pursuant to Warranty 18.1 have been paid or taken. GEC
     is not aware of any challenge or attack by a third party or competent
     authority to such rights and no such challenge or attack has been
     communicated to GEC (excluding routine patent and trade mark registry
     actions). No claims have been made by any employee of a Group Company
     pursuant to sections 40 and 41 of the Patents Act 1977 relating to patents
     or patent applications disclosed pursuant to Warranty 18.1.

18.3 GEC is not aware that the effect of anything which has been done or omitted
     to be done by a member of the GEC Group in relation to the prosecution and
     maintenance of the rights disclosed pursuant to Warranty 18.1 has
     prejudiced the validity or enforceability of such rights so as to have a
     material adverse effect on the business of the Group Companies.

18.4 Details of all material licences (excluding shrink-wrap software licences)
     granted to or by a Group Company in respect of any Intellectual Property
     are set out in the Disclosure Letter and no Group Company is in material
     breach of any such licence and so far as GEC is aware, no other party
     thereto is in material breach of any such licence. Nothing has been done by
     any Group Company which would entitle the


<PAGE>
                                       63


     other party to the licence to terminate such licence (excluding any
     consequence of entering into the transactions contemplated by this
     Agreement).

18.5 So far as GEC is aware the processes and methods of employed, the services
     provided, the business conducted and the products used or dealt in by Group
     Companies in relation to their business as carried on at the date of this
     Agreement do not infringe or make unauthorised use of the rights of any
     other person in any Intellectual Property (or confidential information). No
     written claim has been communicated to GEC by a third party alleging the
     infringement of any Intellectual Property or misuse of confidential
     information through use of the processes and methods employed, services
     provided or products used or dealt in by Group Companies.

18.6 So far as GEC is aware there is no unauthorised use or infringement by any
     person of any Intellectual Property owned by a Group Company.

18.7 Save in the ordinary course of business or to its employees no Group
     Company has disclosed any confidential information except under an
     obligation of confidentiality.

18.8 The sub-licence in the Agreed Form relating to the AT&T/Licence Cross
     Licence grants all rights capable of being granted by GEC for the business
     of the Group Companies under the AT&T/Licence Cross Licence.

18.9 GEC has disclosed in the Disclosure Letter the Group Companies' plan in
     respect of Year 2000 compliance.

18.10 So far as GEC is aware the Group is in substantial compliance with its
      plan in respect of Year 2000 compliance.

18.11 Details of disaster recovery and security procedures relating to the Group
      Companies have been disclosed in the Disclosure Letter.

18.12 The Hardware and Software operates and has been maintained so as to
      support the businesses of the Group Companies at Completion and so far as
      GEC is aware there are no defects or errors (excluding issues relating to
      Year 2000 compliance) which are having a material adverse effect on the
      business of the Group Companies.

19.  Sale of Shares

     No one is entitled to receive from any Group Company any finders fee,
     brokerage or other commission in connection with the sale and purchase of
     the Shares under this Agreement.

20.  Insurances

20.1 (A)  Details of the insurance policies maintained by or on behalf of each
          Group Company are attached to the Disclosure Letter.


<PAGE>
                                       64


     (B)  So far as GEC is aware, all such policies are in force and, so far as
          GEC is aware, no Group Company has done anything or omitted to do
          anything as a result of which any of such policies is void or voidable
          and no claims are outstanding for amounts in excess of (pound)50,000
          under each such policy.

21.  Employees

21.1 (A)  The name and particulars of remuneration, profit sharing, incentive
          and bonus arrangements (including payments in connection with
          termination of any office or employment and loyalty payments) and
          material benefits of the Employees as at 9th January, 1998 are set out
          in or attached to the Disclosure Letter and such particulars are true
          and accurate in all material respects.

     (B)  Since that date, no Employee with a basic salary in excess of
          (pound)50,000 per annum has ceased to be an Employee or has given
          notice terminating his contract of employment and no such person has
          been taken on by the Company.

21.2 The contract of employment of each Employee may be terminated by the
     employer without damages or compensation (other than that payable by
     statute) by giving at any time no more than 13 weeks notice.

21.3 There is no material dispute with any trade union or other such
     representative body existing or, so far as GEC is aware, pending or
     threatened in relation to the business of any Group Company.

21.4 Details of all collective agreements and recognition agreements for the
     time being affecting the Employees or their conditions of service are
     attached to the Disclosure Letter.

21.5 (A)  Within the year immediately preceding the date of this Agreement, no
          Group Company has given notice of any redundancies to the Secretary of
          State or started consultations with any independent trade union under
          the provisions of Part IV, TULRCA or failed in any material respect to
          comply with any such obligation under the said Part IV or has
          undertaken any corresponding steps applicable under the laws of
          another jurisdiction.

     (B)  Plessey GmbH has not taken within the year immediately preceding this
          Agreement any steps for mass dismissals requiring prior notice to be
          given to the Labour Authority .

21.6 So far as GEC is aware, there is not outstanding any material dispute or
     material claim by any Employee or any former employee of any Group Company,
     nor is GEC aware of any circumstances which have arisen from which there is
     a substantial likelihood of such claims or disputes.


<PAGE>
                                       65


21.7 GEC is not aware of any complaint, enquiry or investigation which has been
     made to or against any Group Company or Employee of any Group Company or
     which is pending or threatened or expected in respect or race
     discrimination, equal pay or unequal treatment or disability discrimination
     by any Group Company or Employee of any Group Company.

22.  The Environment

22.1 The business of each Group Company is in all material respects being
     conducted in compliance with Environmental Laws and so far as GEC is aware,
     each Group Company, its directors, officers and employees has in the last
     three years complied in all material respects with Environmental Laws.

22.2 Each Group Company has all Permits necessary at the date of this Agreement
     for the operation of the business of such Group Company.

22.3 No circumstance exists (other than the sale of the Shares) which is likely
     to result to the material detriment of the Group as a whole, in suspension,
     or revocation of any Permit or is likely to result in any such Permit not
     being renewed.

22.4 No material work or material expenditure is required under any
     Environmental Laws in order to carry on the business of any Group Company
     where failure to carry out such work or to incur such expenditure as at the
     date of this Agreement is a breach of Environmental Laws or any Permit.

22.5 So far as GEC is aware, no Group Company has in the last three years
     received any written notice or other written or recorded communication from
     which it reasonably appears that it is likely to be in breach of or liable
     under Environmental Laws or under any Permit.

22.6 So far as GEC is aware, none of the sites currently used, owned or occupied
     by any Group Company is now being or is polluted or contaminated to a
     material extent as a result of:

     (i)  any process or operation (including without limitation waste
          management operations) carried out there by any Group Company or any
          third party; or

     (ii) substances kept or used there by any Group Company or any third party.

22.7 No written notice or other written or recorded communication has been
     received in the last three years by any Group Company from any competent
     authority concerning the inclusion of any land currently or formerly used,
     owned or occupied by any Group Company within any register of contaminated
     sites or requiring any remediation works and GEC knows of no current
     intention on the part of any competent authority to give such notice or
     communication nor of any current investigations by any competent authority
     which might give rise to such an intention.


<PAGE>
                                       66


22.8 GEC is not aware of any circumstances which are reasonably likely to give
     rise to a claim against any Group Company in respect of material pollution
     or contamination on, under or in formerly owned sites.

22.9 Each Group Company is taking all necessary steps to ensure keeping,
     treatment, consignment and disposal of wastes produced or handled in the
     course of each Group Company's business so as to comply in all material
     respects with Environmental Laws.

22.10 Each Group Company has, so far as GEC is aware, supplied to the competent
      authorities such material information and assessments as to each Group
      Company's processes, operations, substances, discharges, wastes and
      effluents as is required by Environmental Laws to be supplied.

22.11 All such information given was, so far as GEC is aware, correct in all
      material respects at the time the information was supplied and so far as
      GEC is aware all such information contained on public registers as is
      required by Environmental Laws is true and accurate.

22.12 Neither GEC (in relation to the operations of the Group) nor any Group
      Company has applied for any information to be excluded from any public
      register maintained in accordance with Environmental Laws on the grounds
      of commercial confidentiality or otherwise.

22.13 So far as GEC is aware, each Group Company has carried out and made all
      such assessments or plans as are required by and in accordance with
      Environmental Laws in relation to that Group Company's substances,
      processes, operations, discharges, wastes and effluents (including without
      limitation those relating to hazardous substances, accident hazards,
      releases to the environment and noise) and reasonably complete and
      accurate records have been kept of such assessments and plans.

22.14 So far as GEC is aware, all remedial, preventative and protective measures
      expressly required by Environmental Laws have been implemented and
      maintained by each Group Company in all material respects.

22.15 For the avoidance of doubt, the Purchaser shall not be entitled to claim
      under any of warranties 22.1, 22.3, 22.4, 22.7 or 22.9, in relation to
      pollution or contamination of soil, surface water, groundwater or other
      water in or below ground unless GEC is aware such pollution or
      contamination was so caused.

23.  The Accounts and Tax

23.1 No Group Company has any liability in respect of Taxation that is not
     disclosed or provided for in the Accounts and, in particular, has no
     outstanding liability for:-

     (A)  Taxation in any part of the world assessable or payable by reference
          to profits, gains, income or distributions earned, received or paid or
          arising or deemed to


<PAGE>
                                       67


          arise on or at any time prior to the Accounts Date or in respect of
          any period ending on or before the Accounts Date; or

     (B)  purchase, value added, sales or other similar tax in any part of the
          world referable to transactions effected on or before the Accounts
          Date;

     that is not provided for in the Accounts.

23.2 The amount of the provision for deferred Taxation in respect of each Group
     Company contained in the Accounts was, at the Accounts Date, in accordance
     with accountancy practices generally accepted in the United Kingdom or the
     relevant jurisdiction of incorporation and commonly adopted by companies
     carrying on businesses similar to those carried on by that Group Company.

23.3 If all facts and circumstances which are now known to the Group or to GEC
     had been known at the time the Accounts were drawn up, the provision for
     deferred Taxation that would be contained in the Accounts would be no
     greater than the provision which is so contained.

24.  Tax Events since the Accounts Date

     Since the Accounts Date:

     (A)  no Group Company has paid any dividend or made any distribution of
          assets or repayment of capital by reference to which it will or may be
          liable to Tax;

     (B)  no accounting period of any Group Company has ended;

     (C)  there has been no disposal of any asset (including trading stock) or
          supply of any service or business facility of any kind (including a
          loan of money or the letting, hiring or licensing of any property
          whether tangible or intangible) in circumstances where the
          consideration actually received or receivable for such disposal or
          supply was materially less than the consideration which could be
          deemed to have been received for tax purposes;

     (D)  no event has occurred which will give rise to a tax liability on any
          Group Company calculated by reference to deemed (as opposed to actual)
          income, profits or gains or which will result in such Group Company
          becoming liable to pay or bear a tax liability directly or primarily
          chargeable against or attributable to another person, firm or company;

     (E)  no disposal has taken place or other event occurred which will or may
          have the effect of crystallising a liability to Taxation which should
          have been included in the provision for deferred Taxation contained in
          the Accounts if such disposal or other event had been planned or
          predicted at the Accounts Date;


<PAGE>
                                       68


     (F)  no Group Company has incurred expenditure of a revenue nature or
          entered into a commitment to incur expenditure of a revenue nature
          which will not be deductible in computing trading profits for the
          purposes of corporation tax, or be deductible as a management expense
          of an investment company, other than expenditure at rate
          proportionately no greater than the corresponding rate for the
          accounting period ending on the Accounts Date;

     (G)  no Group Company has paid or become liable to pay any interest or
          penalty in connection with any tax, has otherwise paid any tax after
          its due date for payment or owes any tax the due date for payment of
          which has passed or will arise in the 30 days after the date of this
          agreement.

     (H)  no Group Company has taken any action which prejudiced any arrangement
          or agreement which it had previously negotiated with any revenue or
          income tax authority;

     (I)  no UK Group Company has made nor has any UK Group Company become
          entitled to make a claim under section 24(2), section 48 or section
          280 of or Schedule 4 to TCGA 1992.

25.  Tax Returns, Disputes, Records and Claims, etc.

25.1 Each Group Company has made or caused to be made all proper returns
     required to be made, and has supplied or caused to be supplied all
     information required to be supplied, to any revenue or income tax authority
     and within the requisite periods. All such returns were when made up to
     date and correct.

25.2 So far as GEC is aware, there is no dispute or disagreement outstanding nor
     is any contemplated at the date of this agreement with any revenue
     authority regarding liability or potential liability to any tax or duty
     (including in each case penalties or interest) recoverable from any Group
     Company or regarding the availability of any relief from tax or duty to
     such Group Company and there are no circumstances which make it likely that
     any such dispute or disagreement will commence.

25.3 Each Group Company has sufficient records relating to past events,
     including any elections made, to calculate the tax liability or relief
     which would arise on any disposal or on the realisation of any asset owned
     at the Accounts Date by that Group Company or acquired by that Group
     Company since that date but before Completion.

25.4 Each Group Company has duly submitted all claims and disclaimers which have
     been assumed to have been made for the purposes of the Accounts and all
     particulars furnished to any revenue or income tax authority in connection
     with the application for any statutory consent or clearance on behalf of
     any Group Company or directly affecting any Group Company made since the
     Accounts Date fully and accurately disclosed all facts and circumstances
     material for the decision of the authority in question.


<PAGE>
                                       69


25.5 The amount of tax chargeable on any Group Company during any accounting
     period ending on or within six years before the Accounts Date has not, to
     any material extent, depended on any concession, agreement or other formal
     or informal arrangement with any revenue or income tax authority.

25.6 No Group Company has received any written notice from any revenue or income
     tax authority which required or will or may require it to withhold tax from
     any payment made since the Accounts Date or which will or may be made after
     the date of this Agreement.

26.  Stamp Duty

     Each Group Company has duly paid any stamp duty or other similar duty, levy
     or transaction tax for which it is liable and all documents which are
     required to be stamped, which are in the possession of any Group Company
     and by virtue of which any Group Company has any right material to the
     business of the Group as a whole have been duly stamped.

27.  Value Added Tax

27.1 Each Group Company has complied with any obligation to register for the
     purposes of any purchase, value added, sales or other similar tax in any
     part of the world and has complied in all material respects with its other
     obligations under any legislation relating to such tax.

27.2 Each Group Company resident in a member state of the European Union has
     been or will be able to recover or obtain credit for all amounts in respect
     of VAT it has incurred since the Accounts Date.

28.  Duties, etc.

     All value added tax, import duty, excise duties and other similar taxes,
     duties or charges payable to any tax authority upon the importation of
     goods or in respect of any assets (including trading stock) imported, owned
     or used by a Group Company have been paid in full.

29.  Tax on Disposal of Assets

     On a disposal of all its assets by a Group Company for:-

     (A)  in the case of each asset owned by a Group Company at the Accounts
          Date, a consideration equal to the value attributed to that asset in
          preparing the Accounts; or

     (B)  in the case of each asset acquired since the Accounts Date, a
          consideration equal to the consideration given for the acquisition


<PAGE>
                                       70


          then either:-

          (a)  in respect of any asset falling within (A) above, the liability
               to tax (if any) which would be incurred by a Group Company in
               respect of that asset would not exceed the amount taken into
               account in respect of that asset in computing the maximum
               liability to deferred Taxation as stated in the Accounts; or

          (b)  in respect of any asset within (B) above, no tax liability would,
               so far as GEC is aware, be incurred by a Group Company in respect
               of that asset.

30.  Non-Deductible Revenue Outgoings

     No Group Company is under any obligation to make any future payment of a
     revenue nature which will be prevented (whether on the grounds of being a
     distribution or for any other reason) from being deductible for corporation
     tax purposes, whether as a deduction in computing the profits of a trade or
     as an expense of management or as a charge on income or (in the case of
     Group Companies subject to UK corporation tax) as a non-trading debit under
     Chapter II Part IV Finance Act 1996, by reason of any Tax legislation.

31.  No UK Group Company has since 5th April 1965 repaid or agreed to repay or
     redeemed or agreed to redeem its share capital or capitalised or agreed to
     capitalise in the form of debentures or redeemable shares any profits or
     reserves of any class or description.

32.  No security (within the meaning of section 254(1) ICTA 1988) issued by any
     UK Group Company and outstanding at the date of this agreement was issued
     in such circumstances that the interest payable on it or any other payment
     required to be made in respect of it falls to be treated as a distribution
     under section 209 ICTA 1988.

33.  Deductions and Withholdings

     During the last six years, each Group Company has made all deductions in
     respect or on account of any tax from any payments made or benefits
     provided by it which it is obliged or entitled to make and has accounted in
     full to the appropriate authority for all amounts so deducted.

34.  Intra-Group Transactions

     No Group Company has, at any time within the last six years, acquired any
     asset from any other company which was, at the time of the acquisition, a
     member of the same group of companies as that member for the purposes of
     any tax such that, at Completion, there will be a charge to tax arising.


<PAGE>
                                       71


35.  Residence

     The country which is given in Schedule 7 as the tax residence of each Group
     Company is the only country whose tax authorities seek to charge tax on the
     world-wide profits or gains of that Group Company and that Group Company
     has never paid tax on income, profits or gains to any tax authority in any
     other country except that mentioned in Schedule 7 in respect of it. There
     has in the three years prior to Completion been no major change in the
     nature or conduct of the trade of any Group Company for the purposes of
     section 768 ICTA 1988.

36.  Transfer Pricing

     So far as GEC is aware, Plessey Inc. has received no enquiries from any
     revenue or income tax authority relating to an actual or potential Transfer
     Pricing Adjustment (as that term is defined in the Tax Covenant).


<PAGE>
                                       72


                                   Schedule 4:
               Limitations on GEC's Liability under the Warranties

1.   Agreements to which this Schedule is Applicable

     The parties intend that the provisions in this Schedule apply to this
     Agreement and, where so stated, to the Tax Covenant and the Environmental
     Deed.

2.   Warranties

2.1  Notwithstanding anything in this Agreement to the contrary, the provisions
     of this Schedule shall operate to limit the liability of GEC in respect of
     any claim by the Purchaser for any breach of the Warranties and, where so
     stated, the Tax Covenant and the Environmental Deed.

2.2  The only Warranties given:

     (A)  in respect of defaults under contracts with customers are those
          contained in paragraph 8.7(A) of Schedule 3 and each of the other
          Warranties shall be deemed not to be given in relation to defaults
          under contracts with customers;

     (B)  in respect of defaults under contracts with suppliers are those
          contained in paragraph 8.9 of Schedule 3 and each of the other
          Warranties shall be deemed not to be given in relation to defaults
          under contracts with suppliers;

     (C)  in respect of Intellectual Property and Information Technology are
          those contained in paragraph 18 of Schedule 3 and each of the other
          Warranties shall be deemed not to be given in relation to Intellectual
          Property and Information Technology;

     (D)  in respect of matters related to the Environment, are those contained
          in paragraph 22 of Schedule 3 and each of the other Warranties shall
          be deemed not to be given in relation to any matter related to the
          Environment;

     (E)  in respect of any Property, Certificated Property and Overseas Office
          (as the case may be) are those contained in paragraph 17 of Schedule 3
          and each of the other Warranties shall be deemed not to be given in
          relation to any Property, Certificated Property and Overseas Office
          (as the case may be); and

     (F)  in respect of Tax, are those contained in paragraphs 23 to 36 of
          Schedule 3 and each of the other Warranties shall be deemed not to be
          given in relation to Tax.


<PAGE>
                                       73


3.   Limitations on Liability under Warranties and Undertakings

3.1  Limitations on Amount

     (A)  The Purchaser shall not in any event be entitled to damages in respect
          of any claim or claims under any of the Warranties (or, in relation to
          A(i) below but not A(ii), the Tax Covenant and the Environmental
          Deed), except as follows:-

          (i)  in respect of any individual claim, unless the amount for which
               GEC is finally liable exceeds (pound)50,000; and

          (ii) in respect of all such claims, unless and until the aggregate
               amount of all such claims for which GEC is finally liable exceeds
               US$8,000,000, being the aggregate of claims made under the
               Warranties (but not, for the avoidance of doubt, where such claim
               is capable of being made under Clauses 5.1, 5.4 or 7.1 or under
               the Tax Covenant or under the Environmental Deed) in which case
               GEC shall be liable for the whole of such sum and not merely the
               excess;

     (B)  The total aggregate liability of GEC for breach of this Agreement
          (save for Clause 2) and under the Tax Covenant and under the
          Environmental Deed shall not in any event exceed the Purchase Price
          (as reduced if applicable by the operation of Clause 3.4(G) and (H)).

     (C)  For the purpose of sub-paragraph 3.1(A)(i), claims arising out of the
          same causal event, matter or practice shall be aggregated and treated
          as a single claim.

3.2  Time Limits for Bringing Claim

     No claim shall be brought against GEC in respect of any breach of the
     Warranties unless the Purchaser shall have given to GEC written notice of
     such claim specifying (in reasonable detail) the matter which gives rise to
     the breach or claim, the nature of the breach or claim and the amount
     claimed in respect thereof (detailing to the extent reasonably practicable
     the calculation of the loss thereby alleged to have been suffered by the
     Purchaser) on or before the date falling one year after the Completion Date
     or, in the case of claims arising under the Warranties contained in
     paragraph 22 of Schedule 3, four years from the Completion Date or, in the
     case of claims arising under the Warranties contained in paragraphs 23 to
     36 of Schedule 3, seven years from the Completion Date.

     PROVIDED that the liability of GEC under this sub-paragraph shall
     absolutely determine (if such claim has not been previously satisfied,
     settled or withdrawn) if legal proceedings in respect of such claim shall
     not have been commenced within six months of the service of such notice and
     for this purpose proceedings shall not be deemed to have been commenced
     unless they shall have been properly issued and validly served upon GEC.


<PAGE>
                                       74


3.3  Conduct of Litigation

     Upon the Purchaser becoming aware of any claim, action or demand against it
     or matter likely to give rise to any of these in respect of the Warranties
     (a "Claim"), the Purchaser shall and shall procure that the relevant Group
     Company shall (except in relation to a Claim under the Warranties contained
     in paragraph 22 of Schedule 3 in relation to a Protected Matter (as defined
     in the Environmental Deed) which shall not be subject to this paragraph 3.3
     and shall be governed by the Schedule to the Environmental Deed):-

     (A)  within 21 Business Days (or such shorter period as is necessary to
          enable GEC to make a substantive response to any such Claim) notify
          GEC by written notice as soon as it appears to the Purchaser that any
          such Claim of a third party received by or coming to the notice of the
          Purchaser may result in a claim under the Warranties;

     (B)  subject to GEC indemnifying the Purchaser and/or the relevant Group
          Company to their reasonable satisfaction against any liability, costs,
          damages or expenses which may be reasonably and properly incurred
          thereby, take such action and give such information and, upon
          reasonable notice, access to relevant personnel, premises, chattels,
          documents and records to GEC and its professional advisers as GEC may
          reasonably request and the relevant Group Company and/or the Purchaser
          and/or the relevant member of the Purchaser's Group shall take such
          action and give such information and assistance in order to avoid,
          dispute, resist, mitigate, settle, compromise, defend or appeal any
          Claim in respect thereof or adjudication with respect thereto as GEC
          may reasonably require;

     (C)  at the request of GEC and subject to GEC indemnifying the Purchaser
          and/or the relevant Group Company to their reasonable satisfaction
          against any liability, costs, damages or expenses which may be
          reasonably and properly incurred thereby, allow GEC to take the sole
          conduct of such actions as GEC may reasonably deem appropriate in
          connection with any such Claim in the name of the Purchaser or the
          appropriate member of the Purchaser's Group and in that connection the
          Purchaser shall give or cause to be given to GEC all such assistance
          as GEC may reasonably require in avoiding, disputing, resisting,
          settling, compromising, defending or appealing any such Claim. GEC
          shall:-

          (i)  in response to reasonable requests from the Purchaser from time
               to time, keep the Purchaser informed of the progress of the
               Claim;

          (ii) provide the Purchaser with copies of such documentation relating
               to the Claim as it may reasonably request; and

         (iii) give the Purchaser such opportunities as it may reasonably
               request to make representations regarding the conduct of the
               Claim.


<PAGE>
                                       75


     (D)  make no admission of liability, agreement, settlement or compromise
          with any third party in relation to any such Claim or adjudication
          without the prior written consent of GEC (such consent not to be
          unreasonably withheld or delayed). If GEC agrees with the third party
          to settle or compromise a Claim, and the Purchaser refuses to agree to
          such settlement or compromise then, if the amount for which GEC
          subsequently becomes liable exceeds the figure at which it would have
          so settled or compromised the relevant Claim, GEC shall not be liable
          for the excess amount or any costs or liabilities incurred since the
          proposed date of settlement or compromise; and

     (E)  the Purchaser undertakes to mitigate its loss and nothing in this
          Agreement shall derogate from that duty.

3.4  No Liability if Loss is Otherwise Compensated For

     (A)  General

          (i)  The Purchaser and those deriving title from the Purchaser on or
               after Completion shall not be entitled to recover damages or
               otherwise obtain reimbursement or restitution more than once
               between them in respect of any individual breach of the
               Warranties or any matter giving rise to a claim under the
               Environmental Deed;

          (ii) The Purchaser shall not be entitled to seek damages or otherwise
               obtain reimbursement or restitution in respect of any claim under
               the Warranties if the loss occasioned to the Purchaser may
               otherwise be recovered under the Tax Covenant, the Environmental
               Deed or any undertaking, covenant or other provision of this
               Agreement; and

         (iii) No liability shall attach to GEC by reason of any breach of the
               Warranties if the same loss occasioned to the Purchaser or the
               relevant Group Company or a member of the Purchaser's Group by
               reason of such breach has been recovered under the Tax Covenant,
               the Environmental Deed and vice versa or under any other
               provision of this Agreement.

     (B)  Taxation

     In calculating the liability of GEC for any breach of the Warranties or
     under the Environmental Deed there shall be taken into account any present
     or future reduction in the liability to Taxation of any Group Company or
     member of the Purchaser's Group which would not have arisen but for the
     matter giving rise to such liability of GEC (such reduction to include any
     reduction which results from claiming a surrender of Group Relief (as that
     term is defined in the Tax Covenant)).


<PAGE>
                                       76


     (C)  Insurances

          If, in respect of any matter which would give rise to a breach of the
          Warranties or a claim under the Environmental Deed, the Purchaser, a
          member of the Purchaser's Group or a Group Company is entitled (or
          would have been so entitled had there been maintained in force or but
          for any change in the terms of the policies of insurance maintained by
          or on behalf of a Group Company or policies providing equivalent cover
          thereto) to claim under any policy of insurance, then the Purchaser
          will notify GEC in writing of the matter giving rise to the claim, in
          accordance with paragraph 3.2, but will not pursue the claim against
          GEC unless and until the relevant Group Company, the Purchaser or a
          member of the Purchaser's Group shall have made a claim against its
          insurers and undertaken all reasonable steps to enforce such claim
          provided that the period within which proceedings must be commenced
          under the proviso to paragraph 3.2 shall be extended (if the Warranty
          claim shall then be still outstanding) to the date falling six months
          after GEC shall have notified the Purchaser in writing that it no
          longer requires the Purchaser to enforce such claim. The amount
          recovered from any such insurance claim (or any claim which could have
          been made had such policies or their equivalents been maintained as
          aforesaid) shall then be applied to reduce or extinguish any such
          claims for breach of the Warranties or under the Environmental Deed.

     (D)  Recovery from Third Parties

          (i)  Where the Purchaser, a member of the Purchaser's Group and/or a
               Group Company are at any time entitled to recover from some other
               person any sum in respect of any matter giving rise to a claim
               under the Warranties, the Environmental Deed or under any of the
               other provisions of this Agreement, the Purchaser shall, and
               shall procure that such Group Company or the relevant member of
               the Purchaser's Group shall, undertake all reasonable steps to
               enforce such recovery prior to taking action against GEC (other
               than to notify GEC of the claim against GEC) and, in the event
               that the Purchaser or such Group Company or relevant member of
               the Purchaser's Group recover any amount from such other person,
               the amount of the claim against GEC shall be reduced by the
               amount recovered, less all reasonable costs, charges and expenses
               properly incurred by the Purchaser or such Group Company or
               relevant member of the Purchaser's Group recovering that sum from
               such other person or if that sum is greater, the claim shall be
               extinguished provided that the period within which proceedings
               must be commenced under the proviso to paragraph 3.2 shall be
               extended (if the third party claim shall then be still
               outstanding) to the date falling six months after GEC shall have
               notified the Purchaser in writing that it no longer requires the
               Purchaser to enforce such claim;


<PAGE>
                                       77


          (ii) If GEC pays at any time to the Purchaser or the relevant member
               of the Purchaser's Group an amount pursuant to a claim in respect
               of the Warranties, the Environmental Deed or under any provisions
               of this Agreement and the Purchaser or relevant member of the
               Purchaser's Group subsequently becomes entitled to recover from
               some other person any sum in respect of any matter giving rise to
               such claim, the Purchaser shall, and shall procure that or the
               relevant member of the Purchaser's Group shall take all
               reasonable steps to enforce such recovery, and shall forthwith
               repay to GEC so much of the amount paid by GEC to the Purchaser
               or the relevant member of the Purchaser's Group as does not
               exceed the sum recovered from such other person less all
               reasonable costs, charges and expenses incurred by the Purchaser
               or relevant member of the Purchaser's Group recovering that sum
               from such other person; and

         (iii) If any amount is repaid to GEC by the Purchaser or the relevant
               member of the Purchaser's Group pursuant to sub-paragraph (D)(ii)
               above, an amount equal to the amount so repaid shall be deemed
               never to have been paid by GEC to the Purchaser for the purposes
               of paragraph 3.1.

3.5  Acts of the Purchaser

     No claim shall lie against GEC under the Warranties to the extent that such
     claim is attributable to:-

     (i)  any voluntary act, omission, transaction or arrangement carried out at
          the written request of or with the written consent of the Purchaser
          before Completion;

     (ii) any voluntary act, omission, transaction or arrangement carried out
          otherwise than in the ordinary course of business by the Purchaser or
          on its behalf or by persons deriving title from the Purchaser on or
          after Completion (excluding the event of Completion itself); or

    (iii) any admission of liability made after the date hereof by the
          Purchaser, a Group Company or, a member of the Purchaser's Group or on
          their behalf or by persons deriving title from the Purchaser on or
          after Completion save any such admission made with the prior written
          consent of GEC.

3.6  Allowance, Provision or Reserve in the Completion Balance Sheets

     No matter shall be the subject of a claim for breach of any of the
     Warranties or under the Environmental Deed to the extent that allowance,
     provision or reserve in respect of such matter shall have been made in the
     Completion Balance Sheets or has been included in calculating creditors or
     deducted in calculating debtors in the Completion Balance Sheets and (in
     the case of creditors or debtors) is identified in the records of 


<PAGE>
                                       78


     the relevant Group Company or shall have been otherwise taken account of or
     reflected in the Completion Balance Sheets.

3.7  Retrospective Legislation

     No liability shall arise in respect of any breach of any of the Warranties
     if and to the extent that liability for such breach occurs or is increased
     as a result of any legislation not in force at the date hereof or which
     takes effect retrospectively save and to the extent provided in the
     definition of Environmental Laws in Schedule 1.

3.8  Taxation

     GEC shall not be liable in any event in respect of any claim in respect of
     any breach of the Warranties:-

     (A)  to the extent that that claim arises or is increased as a result only
          of any increase in rates of Tax or any change in law or practice or
          any withdrawal of any extra-statutory concession by a Tax authority or
          any change in accountancy practice or principles, being an increase,
          withdrawal or change made, in any such case, after Completion with
          retrospective effect; or

     (B)  to the extent that that claim would not have arisen or would have been
          reduced but for a failure or omission on the part of the Purchaser or
          the relevant Group Company after Completion to make any election or
          claim any Relief, the making or claiming of which was taken into
          account in computing the provision or reserve for Tax in the Accounts;
          or

     (C)  to the extent that that claim arises by reason of a voluntary
          disclaimer by the relevant Group Company after Completion of the whole
          or part of any allowance to which it is entitled under Part II of the
          Capital Allowances Act 1990 or by reason of the revocation by the
          relevant Group Company after Completion of any claim for Relief made
          (whether provisionally or otherwise) by it prior to Completion; or

     (D)  to the extent that that claim arises as a result of any changes after
          Completion in the bases, methods or policies of accounting of the
          Purchaser or the relevant Group Company; or

     (E)  to the extent that any income, profits or gains to which that claim is
          attributable were actually earned or received by or actually accrued
          to the relevant Group Company but were not reflected in the Accounts;
          or

     (F)  to the extent that that claim arises or is increased as a consequence
          of any failure by the Purchaser to comply with any of its obligations
          under the Tax Covenant; or


<PAGE>
                                       79


     (G)  to the extent that that claim would not have arisen but for a
          cessation of, or any change in the nature or conduct of, any trade
          carried on by the relevant Group Company, being a cessation or change
          occurring on or after Completion.

3.9  The Purchaser's Knowledge

     (A)  GEC shall not be liable under the Warranties or the Environmental Deed
          to the extent that the Purchaser or any member of the Purchaser's
          Group at the date hereof or any of their respective employees,
          advisers or agents had knowledge at the date hereof of the matters
          forming the basis of the claim. For the purposes of this paragraph
          3.9(A), the Purchaser or any member of the Purchaser's Group at the
          date hereof or any of their respective employees, advisers or agents
          shall be deemed to have knowledge of the matters forming the basis of
          the relevant claim if and to the extent that the employees, advisers
          or agents of the Purchaser or relevant member of the Purchaser's Group
          were given access to any document or other source of information which
          fairly disclosed such fact or matter and the relevant employee,
          adviser or agent of the Purchaser or of the relevant member of the
          Purchaser's Group was of the appropriate seniority to be given such
          access and such fact or matter was reasonably within such person's
          area of skill, experience or competence.

     (B)  The Purchaser undertakes to notify GEC of any matter which may form
          the basis of a claim for breach of Warranty or pursuant to the
          Environmental Deed or payment under any undertaking, deed or covenant
          promptly upon becoming aware of the same.

3.10 No Liability for Contingent or Non-Quantifiable Claims

     If any breach of the Warranties or claim under the Environmental Deed
     arises by reason of some liability of any member of the Purchaser's Group
     or of the Purchaser or of a Group Company which, at the time such breach or
     claim is notified to GEC, is contingent only or otherwise not capable of
     being quantified, then GEC shall not be under any obligation to make any
     payment in respect of such breach or claim unless and until such liability
     ceases to be contingent or becomes capable of being quantified, as the case
     may be.

3.11 No Warranties given in respect of prospects, forecasts, budgets or
     projections, the Information Memorandum or Disclosure Documents

     The Purchaser acknowledges that no Warranties are given by GEC in respect
     of prospects, forecasts, budgets or projections or, save as expressly set
     out in this Agreement, in respect of any statement made, information given
     or opinion expressed in the Information Memorandum or any Disclosure
     Document.


<PAGE>
                                       80


3.12 Payment of Claim to be Reduction in Purchase Price

     Any payment made by GEC in respect of any claim under the Warranties, the
     Environmental Deed or the Tax Covenant, and any payment received by GEC
     pursuant to this Agreement shall constitute an adjustment to the Purchase
     Price payable under clause 3 (Consideration) of this Agreement.

<PAGE>
                                       81


                                   Schedule 5:
                              Pension Arrangements

                               Part 1 - GEC Scheme

1.   In this part of this Schedule, the following expressions shall have the
     meanings assigned to them below:

     "Actuary's Letter"           the letter from SPT to the Purchaser's
                                  Actuary, a copy of which is appended hereto as
                                  Appendix A;

     "GEC Scheme"                 the retirement benefits scheme established by
                                  GEC and known as "the G.E.C. 1972 Plan"
                                  constituted by a Definitive Trust Deed and
                                  Rules dated 4th March, 1982 as amended;

     "Interim Period"             the period commencing on the day immediately
                                  following Completion and ending on the day
                                  immediately preceding the Pension Transfer
                                  Date;

     "Payment Date"               the date falling 7 months after the Pension
                                  Transfer Date;

     "Pensionable Earnings"       has the meaning defined in the rules governing
                                  the GEC Scheme from time to time;

     "Pensions Legislation"       the Pensions Act 1995 and regulations
                                  thereunder made or to be made in the future;

     "Pension Transfer Date"      the date falling six months after Completion
                                  or such other earlier date as may be agreed in
                                  writing between the Purchaser and GEC;

     "Purchaser's Actuary"        Philip R. Watson of Aon Consulting Limited or
                                  such other actuary appointed by the Purchaser
                                  and notified in writing to GEC for the
                                  purposes of this part of this Schedule;

     "SPT"                        Stanhope Pension Trust Limited, being the
                                  trustee for the time being of the GEC Scheme;

     "Transfer Amount"            the amount calculated in accordance with the
                                  actuarial methods and assumptions set out in
                                  the Actuary's Letter in respect of benefits
                                  prospectively and contingently payable under
                                  the GEC Scheme to and in respect of the
                                  Transferring Members accrued up to the Pension
                                  Transfer Date either as agreed by SPT and the


<PAGE>
                                       82


                                  Purchaser's Actuary or as determined by the
                                  independent actuary in accordance with
                                  paragraph 10 of this part of this Schedule;

     "Transferee Scheme"          the retirement benefits scheme or schemes to
                                  be established or nominated by the Purchaser
                                  under paragraph 2.1 of this part of this
                                  Schedule;

     "Transferring Employees"     those Employees who are members of the GEC
                                  Scheme at the date of this Agreement and who
                                  are eligible to become members of the
                                  Transferee Scheme; and

     "Transferring Members"       those Transferring Employees who join the
                                  Transferee Scheme on the Pension Transfer Date
                                  and who elect that their accrued rights under
                                  the GEC Scheme are transferred to the
                                  Transferee Scheme who are still in the service
                                  of a UK Pensions Company at the time of such
                                  election.

2.   The Purchaser undertakes to:

     2.1  establish or procure the establishment of a retirement benefits scheme
          or schemes, by the Pension Transfer Date, in a form capable of
          approval by the Board of Inland Revenue as an exempt approved scheme
          under Chapter 1 of Part XIV of ICTA 1988 or nominate an existing
          retirement benefits scheme which is so approved and which is able and
          willing to accept a transfer payment from the GEC Scheme in respect of
          each Transferring Member in accordance with the provisions of this
          part of this Schedule;

     2.2  notify GEC in writing with particulars of the Transferee Scheme; and

     2.3  invite the Transferring Employees to become members of the Transferee
          Scheme with effect from the Pension Transfer Date.

3.   GEC undertakes that:

3.1  it will take all reasonable steps (including obtaining the consent of the
     Pension Schemes Office of the Inland Revenue) as are necessary to permit
     the Transferring Employees and the Company to continue to participate in
     the GEC Scheme for all pension and death in service benefits during the
     Interim Period as members and associated employer;

3.2  those of the Transferring Employees who do not become Transferring Members
     will be provided with such benefits and options as may be provided for in
     the GEC Scheme; and


<PAGE>
                                       83

3.3  it will not at any time during the Interim Period, without giving the
     Purchaser such prior notice in writing as is reasonable and practicable in
     the circumstances, take any action which would cause the GEC Scheme to be
     terminated or amended in any way which could prejudice the benefits
     prospectively and contingently payable to and in respect of the
     Transferring Members in respect of their participation up to the Pension
     Transfer Date.

4.   Each UK Pensions Company shall cease to participate in the GEC Scheme at
     the end of the Interim Period.

5.   In respect of the Interim Period, the Purchaser undertakes to GEC (for
     itself and as agent for SPT) that:

     5.1  each UK Pensions Company will pay to SPT the contributions to be made
          by and in respect of its Transferring Employees at the rate prescribed
          in the rules of the GEC Scheme for so long as each UK Pensions Company
          remains in membership of the GEC Scheme;

     5.2  each UK Pensions Company will pay a management charge to the principal
          company of the GEC Scheme of 1.6% of its Transferring Employees'
          Pensionable Earnings in respect of the whole of the Interim Period;

     5.3  the Purchaser will procure that each UK Pensions Company complies with
          the rules of the GEC Scheme; and

     5.4  the Purchaser shall procure that the contributions payable by the
          Transferring Employees at the rate prescribed by the rules of the GEC
          Scheme shall be deducted from the remuneration of the Transferring
          Employees.

     Both the relevant UK Pensions Company's and the Transferring Employees'
     contributions shall become due monthly in arrears on pay up to and
     including the 5th of each month and shall be paid immediately to SPT.

6.   Immediately after the Pension Transfer Date GEC shall use all reasonable
     endeavours to procure that SPT shall:

     6.1  determine the Transfer Amount in accordance with the terms and
          assumptions set out in the Actuary's Letter within 2 months of the
          Pension Transfer Date;

     6.2  promptly communicate the results of its calculations to the
          Purchaser's Actuary; and

     6.3  agree the amount with the Purchaser's Actuary not later than 4 months
          after the Pension Transfer Date.

7.   Subject to the Purchaser complying with its obligations under paragraphs 2
     and 5 of this part of this Schedule and provided that SPT and the
     Purchaser's Actuary have


<PAGE>
                                       84


     agreed the Transfer Amount in accordance with the provisions of paragraph 6
     of this part of this Schedule or otherwise determined in accordance with
     paragraph 10, GEC shall use all reasonable endeavours to procure that SPT
     shall (subject to the approval of the Board of Inland Revenue) transfer on
     the Payment Date to the Transferee Scheme in cash the Transfer Amount in
     respect of the Transferring Members from whom SPT has received a completed
     election form substantially in the form of Appendix B to this part of this
     Schedule.

8.   Subject to the receipt of the Transfer Amount by the Transferee Scheme the
     Purchaser will procure that the Transferee Scheme will provide (subject to
     Inland Revenue limits not being exceeded) pensions (including spouses'
     pensions where applicable) and other benefits for or in respect of each of
     the Transferring Members in respect of service prior to Pension Transfer
     Date which are determined by the Purchaser's Actuary on the basis disclosed
     by the Purchaser's Actuary to SPT in a letter provided by the Purchaser's
     Actuary to SPT prior to Completion as being equivalent in value to the
     value of their entitlements under the GEC Scheme.

9.   If any of the Transferring Members pay additional voluntary contributions
     in respect of which the benefits are not related to final pensionable
     earnings, the voluntary contributions and the additional benefits payable
     as a result shall be disregarded for all the purposes of this part of this
     Schedule. GEC shall use all its reasonable endeavours to procure that the
     part of the voluntary contribution fund attributable to the Transferring
     Members in accordance with the rules of the GEC Scheme is transferred to
     the Transferee Scheme on the Payment Date.

10.  GEC and the Purchaser shall, where there is any dispute between SPT and the
     Purchaser's Actuary concerning the determination of the Transfer Amount or
     of any other actuarial matters to be determined or agreed by them for the
     purposes of this part of this Schedule, refer the matter in dispute to an
     independent actuary to be nominated jointly by GEC and the Purchaser or,
     failing agreement over the nomination, nominated by the President for the
     time being of the Institute of Actuaries. The person so appointed shall act
     as an expert and not as an arbitrator, his decision shall be final and
     binding and his fees shall be borne equally by GEC and the Purchaser.

11.  Each of SPT and the Purchaser's Actuary may request of each other, of GEC
     or of the Purchaser information reasonably necessary for effecting the
     transfer arrangements specified under paragraphs 6 to 10 of this part of
     this Schedule, provided such information is within the possession or
     control of the party from whom it is requested. GEC or the Purchaser, as
     the case may be, shall use its best endeavours to procure that all such
     information reasonably requested in writing shall be supplied to the party
     requesting it within 14 days of each such request, and shall be accurate
     and complete in all material respects.

12.  No Employee who is not at Completion a member of the GEC Scheme shall be
     entitled under this part of this Schedule to become a member thereof after
     Completion.
<PAGE>
                                       85


13.  It is acknowledged that SPT and the trustees of the Transferee Scheme are
     not parties to this Agreement and are not bound by the terms hereof.

14.  GEC and the Purchaser acknowledge that the Pensions Legislation imposes
     requirements and discretions on employers under and in relation to the GEC
     Scheme and accordingly:

14.1 The Purchaser agrees that it will procure that each UK Pensions Company
     will agree that GEC (or a subsidiary or associated company of GEC
     determined, in its absolute discretion, by GEC) may make all decisions and
     exercise all discretions in relation to the GEC Scheme envisaged or
     desirable by or under the Pensions Legislation as though GEC (or the said
     subsidiary or associated company) were the sole employer participating in
     the GEC Scheme.

14.2 While any UK Pensions Company remains a participating employer in the GEC
     Scheme, the Purchaser shall procure that such UK Pensions Company will in
     relation to the GEC Scheme:

     (A)  exercise no right or discretion conferred on it by or under the
          Pensions Legislation without the prior written consent of GEC (such
          consent not to be unreasonably withheld);

     (B)  exercise each right or discretion conferred on it by or under the
          Pensions Legislation (including, for the avoidance of doubt,
          contracting out) as directed from time to time in writing by GEC;

     (C)  co-operate with GEC and SPT in providing information about, and access
          to, its employees from time to time;

     (D)  from time to time execute all such deeds, documents, agreements,
          consents or approvals for the purpose of complying with its
          obligations under this sub-paragraph as may be considered necessary or
          desirable by GEC; and

     (E)  if requested by GEC execute a deed irrevocably appointing GEC as its
          attorney to execute (in the name of such UK Pensions Company or
          otherwise) from time to time any such deeds, documents, agreements,
          consents or approvals.

14.3 Without prejudice to the generality of the foregoing, the Purchaser shall
     procure that each UK Pensions Company will at the request of GEC
     irrevocably:

     (A)  nominate GEC as the "appropriate person" and the person to act for it
          for the purposes of sub-section 21(9) of the Pensions Act 1995 (as to
          be inserted by paragraph 1(1)(g) of Schedule 3 to the Occupational
          Pension Schemes (Member-nominated Trustees and Directors) Regulations
          1996) in relation to the GEC Scheme;


<PAGE>
                                       86


     (B)  agree that the consultation required by section 35(5)(b) of the
          Pensions Act 1995 by SPT with the employer in relation to the written
          statement of investment principles may be with GEC to the exclusion of
          such UK Pensions Company; and

     (C)  nominate GEC as the representative of such UK Pensions Company for the
          purposes of section 58(4)(a) of the Pensions Act 1995 (as to be
          amended by paragraph 2 of Schedule 5 to the Occupational Pension
          Schemes (Minimum Funding Requirement and Actuarial Valuations)
          Regulations 1996) in relation to the GEC Scheme.

14.4 GEC may exercise the authorities and discretions envisaged by this
     paragraph in its absolute unfettered discretion and in its own interests.
     GEC owes no duty or responsibility to the Purchaser or any UK Pensions
     Company in relation to the exercise of the authorities and discretions
     envisaged as conferred on GEC by this paragraph.

<PAGE>
                                       87


                                   Appendix A

                         Stanhope Pension Trust Limited

                                                  Direct dial: (01785) 274730


                                                  Our ref: DOC/S/04 (07.05.1997)

                                                  o 1998




Dear Sirs

The G.E.C. 1972 Plan

Stanhope Pension Trust Limited is the trustee of the G.E.C. 1972 Plan,
comprising The GEC Plan and the Selected Benefit Scheme, the latter being an
arrangement for additional voluntary contributions.

We offer to pay transfer values to the trustees of the Purchaser's Scheme in
respect of those employees who are members of the G.E.C. 1972 Plan.

Transfer values will be calculated as described below, based on benefits accrued
to the date of cessation of pensionable service and adjusted, as appropriate,
for increases to the date of calculation (the "Calculation Date").


<PAGE>
                                       88


The GEC Plan

Interest

<TABLE>
<CAPTION>
                                     In deferment                                  In possession

                        Projected     Discounted       Net rate       Increases      Discounted      Net rate
                           at             at                             of              at
<S>                       <C>            <C>            <C>             <C>             <C>            <C>
"Basis 1" pension         4.0%           9.0%           4.81%           3.5%            8.0%           4.35%

"Basis 2" pension         0.0%           9.0%           9.00%           3.5%            8.0%           4.35%

"Basis 3" pension         8.0%           9.0%           0.93%           3.5%            8.0%           4.35%
</TABLE>

The projection of pensions will be adjusted for the timing of increases.

Pensions which have arisen from transfers into the Plan will be projected at
3.5% and discounted at 9.0% (leading to a net rate of 5.31% per annum) over the
period of deferment.

Benefits which do not attract the normal Plan increases of the lesser of 5% and
the increase in the retail prices index will be valued by allowing for the
appropriate rate of increase in possession.

Mortality

<TABLE>
<S>                 <C>                                                        
In deferment -      PA90 tables, rated down two years for both males and females.

In possession -     PA90 tables, rated down two years for both males and females.

Spouses' pensions - PA90 tables, rated down two years for both males and females.
</TABLE>

Other decrements

Nil.

Spouses' benefits

Wives are assumed to be three years younger than their husbands and 90% of
members are assumed to be married.


<PAGE>
                                       89


Further adjustment:

                                       The unit liability of all benefits within
                                       the Plan will be increased by a factor of
                                       1.05 if the member is aged less than 55
                                       at the time of transfer. For members aged
                                       greater than 55, an adjustment will be
                                       calculated according to age,
                                       interpolating between values of 1.05 for
                                       members aged 55 and 1.0 for members aged
                                       65.

Adjustment to market value:

The actuarial value of the benefits will be adjusted to market value by
multiplying by the following factors:

If age is less than (or precisely  :   4.25 divided by the yield on the FTSE
equal to) 55                           Actuaries All-Share Index on the first
                                       working day of the month in which the
                                       Calculation Date occurs.

If age is 65                       :   the lesser of

                                       (i) the value of a unit holding in a 15
                                       year stock with coupon of 8%, payable
                                       annually in arrears valued at the
                                       annualised yield on the FT-Actuaries
                                       Fixed Interest 15 Year Medium Coupon
                                       Index on the first working day of the
                                       month in which the Calculation Date
                                       occurs, and

                                       (ii) the value of a unit holding in a 15
                                       year stock with coupon of 3.85%, payable
                                       annually in arrears valued at the
                                       annualised yield on the FT-Actuaries
                                       Index-Linked Over 5 years (5% inflation)
                                       Index on the first working day of the
                                       month in which the Calculation Date
                                       occurs.

If age is between 55 and 65        :   through linear interpolation, on the
                                       first working day of the month in which
                                       the Calculation Date occurs, according to
                                       age, by reference to the values at ages
                                       55 and 65.

In valuing benefits which are subject to fixed or no increases, (ii) above will
be ignored.

Minimum value

The transfer value for any member will be not less than the member's accumulated
contributions to The GEC Plan with credited interest to the Calculation Date.


<PAGE>
                                       90


Selected Benefit Scheme (SBS)

The transfer value for each member will be the retirement credits accumulated to
the Calculation Date.

Aggregate transfer value

The aggregate transfer value before expenses for each member will be calculated
as the highest value produced under Bases 1, 2 and 3 (as described in the April
1997 edition of The GEC Plan explanatory booklet) and the minimum value referred
to above, together with any SBS retirement credits.

Expenses

A deduction for expenses will be made from the total of the aggregate transfer
values on the attached scale.

Guarantee of basis

Transfer values are guaranteed for three months from the Calculation Date after
which we would reserve the right to substitute a different basis.

Adjustment

The total transfer value net of expenses will be subject to interest between
Calculation Date and payment date at Midland Bank base rate.

TRANSFER AGREEMENT

This letter will be subject to the consent of members concerned and to a formal
agreement between the trustees of the respective pension schemes covering:

(i)   Quantification of the transfer values.

(ii)  Application of the transfer values.

(iii) Assurance regarding solvency of the Purchaser's pension scheme.


<PAGE>
                                       91


Yours faithfully,







Philip E Read
Director




<PAGE>
                                       92


                         Stanhope Pension Trust Limited

                  Expenses on transfer values paid and received

<TABLE>
<CAPTION>
             Gross Value                             Expenses
       (pound)            (pound)       (pound)                                     (pound)

<S>               <C>                   <C>                                     <C>
               0  Up to      20,000                   2.50% of gross value
Over      20,000  Up to      50,000         500  plus 2.00% on gross value over      20,000
Over      50,000  Up to     100,000       1,100  plus 1.50% on gross value over      50,000
Over     100,000  Up to     500,000       1,850  plus 1.25% on gross value over     100,000
Over     500,000  Up to   1,000,000       6,850  plus 1.00% on gross value over     500,000
Over   1,000,000  Up to   2,000,000      11,850  plus 0.80% on gross value over   1,000,000
Over   2,000,000  Up to   5,000,000      19,850  plus 0.60% on gross value over   2,000,000
Over   5,000,000  Up to  10,000,000      37,850  plus 0.40% on gross value over   5,000,000
Over  10,000,000  Up to  20,000,000      57,850  plus 0.20% on gross value over  10,000,000
Over  20,000,000  Up to  50,000,000      77,850  plus 0.08% on gross value over  20,000,000
Over  50,000,000  Up to 100,000,000     101,850  plus 0.03% on gross value over  50,000,000
Over 100,000,000                        116,850  plus 0.01% on gross value over 100,000,000
</TABLE>

<PAGE>
                                       93


Note 1    For multiple transfers, total expenses will be allocated in the
          proportion that each transfer value bears to the aggregate transfer
          values.

     2    Expenses are deducted from that part of a transfer value not
          attributable to member's contributions and the balance of expenses, if
          any, from member's contributions including AVCs.

<PAGE>
                                       94


                                                  Appendix B


<PAGE>
                                       95


                          Form of Agreement and Option
                          ----------------------------

                          FORM OF AGREEMENT AND OPTION

From: [Merge 'NAME']
National Insurance No:    [Merge 'NINO']

To:  Trustee[s] of the [         Scheme]

     and

     Stanhope Pension Trust Limited (the Trustee of the G.E.C. 1972 Plan
     comprising The GEC Plan and Selected Benefit Scheme)

     I refer to the letters from Stanhope Pension Limited dated [      ] and the
[      Scheme] dated [        ].

PLEASE TICK ONE BOX ONLY TO SPECIFY YOUR REQUIREMENTS, AND SIGN AND DATE THIS
FORM AND ENTER YOUR HOME ADDRESS.

[ ]  A    I request the Trustee of the G.E.C. 1972 Plan ("the Plan") to retain
          my rights to benefit under the Plan in respect of pensionable service
          to [         ].

[ ]  B    I have become a member of the [   Scheme] and I require the Trustee of
          the G.E.C. 1972 Plan ("the Plan") to transfer the value of all
          benefits which have accrued to or in respect of me under the Plan to
          the Trustee[s] of the [  Scheme] in accordance with the above letters.

[ ]  C    I wish to receive a Statement of Entitlement giving the transfer value
          available to a Personal Pension Scheme with...........................
          ......................................................................
          ......................................................................
          ......................................................................
          (insert name and address of pension provider)

I understand and acknowledge that following the making of a transfer to the
Trustee[s] of the [     Scheme] in accordance with option B above, neither I nor
any person claiming under or in respect of me (whether a spouse, dependant or
otherwise) will have any entitlement under the G.E.C. 1972 Plan.

Signature: ......................................     Date:.....................
- -------------------------------------------------     --------------------------

Home address:...................................................................
- --------------------------------------------------------------------------------

 .................................................     Postcode:.................
- -------------------------------------------------     --------------------------


<PAGE>
                                       96


PLEASE RETURN THIS TO [YOUR PERSONNEL DEPARTMENT] NO LATER THAN [              ]
- --------------------------------------------------------------------------------

Issued by:        Special Projects Department,
- ------------------------------------------------
                  Stanhope Pension Trust Limited
                  PO Box 20
                  Lichfield Road,
                  Stafford ST17 4LN



<PAGE>
                                       97


                       Part 2 - U.S. Benefits Arrangements

1.   Benefits. For 1 year following the Completion Date, the Purchaser shall
     maintain, or shall cause Plessey Inc. to maintain, compensation and
     employee benefit plans and arrangements for U.S. Employees Inc. who become
     employees of the Purchaser or any subsidiary (including Plessey Inc.) after
     the Completion Date ("Affected Employees") that are, in the aggregate,
     substantially equivalent to those provided under the compensation, employee
     benefit plans and arrangements maintained by the Purchaser or any
     subsidiary for similarly situated employees in the United States. Provided
     that the Purchaser or any subsidiary maintains such compensation and
     employee benefit plans and arrangements for Affected Employees, the
     Purchaser shall have the rights in the good faith exercise of its
     managerial discretion, (1) to make changes or cause changes to be made in
     compensation and employee benefit plans and arrangements, (2) to terminate
     employee benefit plans and arrangements and (3) to terminate the employment
     of any Affected Employee, such rights to be exercisable at any time
     including during the 1 year following the Completion Date. Further, during
     the one year period described above, the Purchaser shall maintain or cause
     Plessey Inc. to maintain health and dental insurance benefit plans and
     arrangements and severance plans for Affected Employees which are
     substantially equivalent to those benefits provided under such plans and
     arrangements maintained by Plessey Inc. prior to the Completion Date.

2.   Accrued Vacation. The Purchaser shall be responsible for all vacation,
     holiday, sickness and personal days accrued by the Employees of Plessey
     Inc. as of the Completion Date.

3.   Participation in Benefit Plans. Affected Employees shall be given credit
     for all service with Plessey Inc. (and any entity owned, directly or
     indirectly, twenty-five per cent. (25%) or more by GEC) under all severance
     plans, employee benefit plans and other benefit arrangements with respect
     to which the Affected Employees are or become participants after the
     Completion Date for purposes of eligibility and vesting to the same extent
     as if rendered to the Purchaser or any of its subsidiaries. The Purchaser
     shall cause to be waived any pre-existing condition limitation that might
     otherwise apply to an Affected Employee under any welfare plan with respect
     to which the Affected Employees are or become participants after the
     Completion Date. The Purchaser agrees to recognise (or cause to be
     recognised) the dollar amount of all expenses incurred by Affected
     Employees during the calendar year in which the Completion Date occurs for
     purposes of satisfying the calendar year deductibles and co-payments
     limitations for such year with respect to which the Affected Employees are
     or become participants after the Completion Date.

4.   Participation in GEC's Employee Pension Benefit Plans. As of the Completion
     Date, Affected Employee's participation shall terminate in the GEC-USA
     Employees' Savings and Investment Plan ("GEC Savings Plan"). Affected
     Employees shall thereafter be entitled to the benefits which they have
     accrued as of the Completion Date, to the extent then vested, in accordance
     with the terms of the GEC Savings Plan. Prior to the Completion Date, GEC
     shall take any and all actions necessary to effect this


<PAGE>
                                       98


     termination of participation. The Purchaser shall pay, or cause Plessey
     Inc. to pay, to the trust which funds the GEC Savings Plan all
     contributions required to be paid to such trust for periods ending prior to
     or on the Completion Date in order for the plan to satisfy the requirements
     of Section 401 of the Internal Revenue Code of 1986 or to otherwise satisfy
     the terms of such plan, including but not limited to employee pre-tax and
     after-tax contributions, employer matching contributions, and any other
     employer contributions. The Purchaser shall also furnish to GEC or one of
     its affiliates after the Completion Date such information from the books
     and records of Plessey Inc. as may be reasonably requested by GEC or one of
     its subsidiaries with respect to the GEC Savings Plan.

5.   Participation in GEC's Employee Welfare Benefit Plans. As of the Completion
     Date, the participation of Affected Employees, any former employee of
     Plessey Inc. who was not employed by Plessey Inc. on the Completion Date,
     or the dependants of any such Affected Employee or former employee
     (collectively hereinafter referred to as "Subsidiary Welfare Participants")
     in the GEC-USA Employees' Welfare Benefit Plan ("GEC Welfare Plan") shall
     terminate provided that:

     5.1  Except as otherwise provided by paragraph 5.2 below, the GEC Welfare
          Plan shall pay, in accordance with the terms of the plan, claims or
          expenses covered by the plan which are incurred prior to or on the
          Completion Date with respect to Subsidiary Welfare Participants. For
          this purpose, a life insurance claim is incurred on the date of death;
          a long-term disability claim is incurred on the date the employee's
          absence from work begins which qualifies the employee to receive
          long-term disability benefits; and medical and dental claims are
          incurred on the date the services are rendered.

     5.2  Notwithstanding sub-paragraph 5.1 above, the Purchaser shall satisfy,
          or cause Plessey Inc. to satisfy, long-term disability claims of
          Subsidiary Welfare Participants payable under the GEC Welfare Plan
          which are incurred prior to or on the Completion Date and with respect
          to which the payment of long-term disability benefits had not
          commenced as of 1 July, 1997.

     5.3  The Purchaser shall pay, or cause Plessey Inc. to pay, to the GEC-USA
          Employees' Welfare Benefit Trust ("GEC Welfare Trust") all amounts
          which are paid in accordance with past practice in the normal course
          of business by such trust by reason of medical, dental, and dependent
          care expenses of Subsidiary Welfare Participants and for which the GEC
          Welfare Trust has not received payment from Plessey Inc. as of the
          Completion Date.

     5.4  The Purchaser shall pay or cause Plessey Inc. to pay, to the GEC
          Welfare Trust all amounts which are paid in accordance with past
          practice in the normal course of business by such trust to provide
          stop-loss insurance with respect to medical expenses of the Subsidiary
          Welfare Participants and for which the GEC Welfare Trust has not
          received payment from Plessey Inc. as of the Completion Date.


<PAGE>
                                       99


     5.5  The Purchaser shall pay, or cause Plessey Inc. to pay, to the GEC
          Welfare Trust amounts which are charged to Plessey Inc. by the
          Greensboro Associates, Inc. ("GAI"), the plan administrator of the GEC
          Welfare Plan in accordance with past practice in the normal course of
          business, for life insurance and long-term disability coverage
          provided with respect to the Subsidiary Welfare Participants for
          periods ending on or prior to the Completion Date which have not been
          paid by Plessey Inc. as of the Completion Date.

     5.6  The Purchaser shall assume and satisfy the obligation of GEC, a direct
          or indirect subsidiary of GEC, or the GEC Welfare Plan to provide
          after the Completion Date continued medial and dental expense coverage
          with respect to the Subsidiary Welfare Participants which is required
          by Section 4980B of the Internal Revenue Code of 1986, Section 601 of
          the Employee Retirement Income Security Act of 1974, or the terms of
          the GEC Welfare Plan.

     5.7  Effective as of the Completion Date, any medical benefit contract
          maintained by Plessey Inc. and which does not cover employees of any
          other subsidiary of GEC, shall not be part of the GEC Welfare Plan and
          the Purchaser and Plessey Inc. shall pay and satisfy any amounts
          required to be paid under the terms of such contract. The Purchaser
          shall provide, or cause Plessey Inc. to provide, such information as
          may be reasonably requested by GAI in order to comply with
          governmental reporting requirements imposed on the GEC Welfare Plan
          for plan years including the Completion Date or plan years ending
          before the Completion Date.

6.   The Purchaser shall pay, or cause Plessey Inc. to pay, to GAI amounts
     charged to Plessey Inc. in accordance with past practice in the normal
     course of business for administrative services rendered to Plessey Inc.
     with respect to the GEC Retirement Plan, the GEC Savings Plan, and the GEC
     Welfare Plan for periods ending on or prior to the Completion Date which
     have not been paid by Plessey Inc. as of the Completion Date.

7.   The Purchaser will indemnify and hold harmless the Seller and the direct or
     indirect subsidiaries of GEC from and against damages, including attorney
     fees, arising from the failure of the Purchaser or Plessey Inc. to satisfy
     the obligations imposed on the Purchaser or Plessey Inc. under this part of
     this Schedule.






<PAGE>
                                      100


                                   Schedule 6:
                                  Tax Covenant

The Tax Covenant shall be in the form of the deed prepared by GEC's Solicitors
which has (for the purposes of identification only) already been initialled by
GEC's Solicitors and the Purchaser's Solicitors.




<PAGE>
                                      101

                                   Schedule 7:
                 Part A - Basic Information about the Companies

1.  Company Name:                             Plessey Semiconductors Limited

    Place of Incorporation/Registration:      England and Wales

    Registration Number:                      705031

    Date of Incorporation:                    5th October, 1961

    Registered Office:                        Cheney Manor
                                              Swindon
                                              Wiltshire SN2 2QW

    Share capital     -       authorised:     200,000,000 Ordinary Shares of
                                              (pound)1

                      -       issued:         21,200,000 Ordinary Shares of
                                              (pound)1

    Registered Shareholder(s):                The General Electric Company,
                                              p.l.c                  101,909,999

                                              Associated Electrical Industries
                                              Holdings Limited                 1

    Beneficial owner(s) of issued shares:     The General Electric Company,
                                              p.l.c.

    Subsidiaries or subsidiary undertakings:  Plessey France S.A.
                                              Plessey GmbH
                                              Plessey Semiconductors SpA
                                              Plessey Semiconductors Singapore
                                              Pte Limited
                                              GEC Plessey Semiconductors Japan
                                              Limited
                                              UK Cablevision Limited
                                              GEC Plessey Semiconductors
                                              Overseas Limited
                                              PSSY Semiconductors Svenska
                                              Aktiebolag

    Directors:                                Mr. T. Urwin
                                              Mr. A.P. Gallagher

    Secretary:                                Mr. A.K. Griffiths


<PAGE>
                                      102


2.  Company Name:                             GEC Plessey Semiconductors Inc.

    Place of Incorporation/Registration:      Delaware, U.S.A.

    Registration Number:                      FEI Number 94-2500132

    Date of Incorporation:                    2nd February, 1988

    Registered Office:                        Corporation Trust Centre,
                                              1209 Orange Street,
                                              Wilmington, Delaware 19801

    Share capital     -       authorised:     1,000 common shares of US$1

                      -       issued:         1,000 common shares of US$1

    Registered Shareholder(s):                GEC Inc

    Beneficial owner(s) of issued shares:     GEC Inc

    Subsidiaries or subsidiary undertakings:  None

    Directors:                                Tom Urwin, J.E. Hustein, P.A. 
                                              Hoffman

    Secretary:                                Pat Hoffman



<PAGE>
                                      103


3.  Company Name:                             AEI Semiconductors Limited

    Place of Incorporation:                   England and Wales

    Registration Number:                      270190

    Date of Incorporation:                    12th November, 1932

    Registered Office:                        1 Stanhope Gate
                                              London  W1A 1EH

    Share capital     -       authorised:     100 Ordinary Shares of (pound)1

                      -       issued:         100 Ordinary Shares of (pound)1

    Registered Shareholder(s):                Associated Electrical Industries
                                              Holdings Limited                 1

                                              Associated Electrical Industries
                                              Limited                         99

    Beneficial owner(s) of issued shares:     Associated Electrical Industries
                                              Limited                        100

    Subsidiaries or subsidiary undertakings:  None

    Directors:                                Mr. A.P. Gallagher
                                              Mr. T. Urwin

    Secretary:                                Mr A.K. Griffiths


<PAGE>
                                      104

4   Company Name:                             Marconi Electronic Devices Limited

    Place of Incorporation/Registration:      England and Wales

    Registration Number:                      337403

    Date of Incorporation:                    2nd March 1938

    Registered Office:                        Cheney Manor
                                              Swindon
                                              Wiltshire SN2 2QW

    Share capital     -       authorised:     25,000,000 Ordinary Shares of
                                              (pound)1

                      -       issued:         25,000,000 Ordinary Shares of
                                              (pound)1

    Registered Shareholder(s):                The General Electric Company,
                                               p.l.c                  24,999,999
                                              
                                              Associated Electrical Industries 
                                              Holdings Limited                 1

    Beneficial owner(s) of issued shares:     The General Electric Company, 
                                              p.l.c.

    Subsidiaries or subsidiary undertakings:  None

    Directors:                                Mr. T. Urwin
                                              Mr. A.P. Gallagher

    Secretary:                                Mr. A.K. Griffiths





<PAGE>
                                      105


         Part B - Basic Information about Subsidiaries of the Companies

1.  Name of Subsidiary:                       UK Cablevision Limited

    Place of Incorporation/Registration:      England and Wales

    Registration Number:                      1652326

    Date of Incorporation:                    19th July 1982

    Registered Office:                        Cheney Manor
                                              Swindon
                                              Wiltshire SN2 2QW

    Share capital     -       authorised:     100 Ordinary Shares of (pound)1

                      -       issued:         2 Ordinary Shares of (pound)1

    Registered Shareholder(s):                Plessey Semiconductors Limited   1

                                              Associated Electrical Industries 
                                              Holdings Limited                 1

    Beneficial owner(s) of issued shares:     Plessey Semiconductors Limited

    Subsidiaries or subsidiary undertakings:  None

    Directors:                                Mr. T. Urwin
                                              Mr. A.P. Gallagher

    Secretary:                                Mr. A.K. Griffiths


<PAGE>
                                      106


2.  Name of Subsidiary:                       Plessey France SA

    Place of Incorporation/Registration:      France

    Registration Number:                      R.C.S. Evry B 532 016 325

    Date of Incorporation:                    15th April, 1957

    Registered Office:                        Z.A. Courtaboeuf
                                              Miniparc - 6, avenue des Andes,
                                              Bat 2-B.P. 142
                                              91944 les Ulis Cedex A

    Share capital     -       issued:         FFR15,700,000 comprising 157,000 
                                              shares of FFR100 each

    Registered Shareholder(s):                Plessey Semiconductors Limited
                                                                         156,994
                                              Susan Ferguson                1
                                              Philip Wright                 1
                                              Michael Buck                  1
                                              Didier Trin                   1
                                              Ernest Pusey                  1
                                              Tom Urwin                     1

    Subsidiaries or subsidiary undertakings:  None

    Directors:                                Michael Buck
                                              Didier Trin
                                              Philip Wright

    Secretary:                                None


<PAGE>
                                      107

3.  Name of Subsidiary:                       Plessey GmbH

    Place of Incorporation/Registration:      Germany

    Registration Number:                      Commercial Register of the Court 
                                              of Munich no. 45677

    Date of Incorporation:                    3rd April, 1973

    Registered Office (seat):                 Grillparzerstrasse 16,
                                              81675 Munich, Germany

    Share capital     -                       DM450,000

    Registered Shareholder(s):                Plessey Semiconductors Limited

    Beneficial owner(s) of issued shares:     Plessey Semiconductors Limited

    Subsidiaries or subsidiary undertakings:  None

    Directors:                                Ernest Pusey
                                              Philip Wright


<PAGE>
                                      108


4.  Name of Subsidiary:                       Plessey Semiconductors SpA

    Place of Incorporation/Registration:      Italy

    Registration Number:                      Monza Register of Companies
                                              51515

    Date of Incorporation:                    1st March, 1991

    Registered Office:                        Via Fosse Ardeatine 4,
                                              20092 Cinisello Balsamo
                                              Milano

    Share capital     -       authorised:     ITL 2,700,000,000 comprising 
                                              270,000 shares of ITL 10,000

                      -       issued:         ITL 2,700,000,000 comprising 
                                              270,000 shares of ITL 10,000

    Registered Shareholder(s):                Plessey Semiconductors Limited
                                              270,000

    Beneficial owner(s) of issued shares:     Plessey Semiconductors Limited

    Subsidiaries or subsidiary undertakings:  None

    Directors:                                Michael Buck
                                              Ernest Pusey
                                              Philip Wright

    Secretary:                                None

<PAGE>
                                      109


5.  Name of Subsidiary:                       Plessey Semiconductors Singapore 
                                              Pte Ltd

    Place of Incorporation/Registration:      Singapore

    Registration Number:                      198403047 H

    Date of Incorporation:                    17th August, 1984

    Registered Office:                        3 Tai Seng Drive,
                                              GEC Building,
                                              Singapore 535216

    Share capital     -       authorised:     S$200,000 comprising 200,000 
                                              ordinary shares of S$1

                      -       issued:         S$200,000 comprising 200,000 
                                              ordinary shares of S$1

    Registered Shareholder(s):                Plessey Semiconductors Limited

    Beneficial owner(s) of issued shares:     Plessey Semiconductors Limited

    Subsidiaries or subsidiary undertakings:  None

    Directors:                                R. Ashman
                                              Teo Chwee Teck

    Secretary:                                Teo Chwee Teck


<PAGE>
                                      110


6.  Name of Subsidiary:                       PSSY Semiconductors Svenska
                                              Aktiebolag

    Place of Incorporation/Registration:      Stockholm, Sweden

    Registration Number:                      556537-8022

    Date of Incorporation:                    30th December 1996

    Registered Office:                        Box 7730
                                              103 95 Stockholm,
                                              Sweden

    Share capital     -       authorised:     SEK400,000

                      -       issued:         SEK100,000

    Registered Shareholder(s):                GEC Plessey Semiconductors
                                              Overseas Limited

    Beneficial owner(s) of issued shares:     Plessey Semiconductors Limited

    Subsidiaries or subsidiary undertakings:  None

    Directors:                                Ormonde Goldie
                                              (Ian Cooper, registration pending)

    Deputy Director:                          John Hane


<PAGE>
                                      111


7.  Name of Subsidiary:                       GEC Plessey Semiconductors 
                                              Overseas Limited

    Place of Incorporation/Registration:      England and Wales

    Registration Number:                      464581

    Date of Incorporation:                    14th February 1949

    Registered Office:                        Cheney Manor
                                              Swindon
                                              Wiltshire SN2 2QW

    Share capital     -       authorised:     100 Ordinary Shares of (pound)1

                      -       issued:         2 Ordinary Shares of (pound)1

    Registered Shareholder(s):                Plessey Semiconductors Limited   1

                                              Associated Electrical Industries 
                                              Holdings Limited                 1

    Beneficial owner(s) of issued shares:     Plessey Semiconductors Limited

    Subsidiaries or subsidiary undertakings:  None

    Directors:                                Mr. T. Urwin
                                              Mr. A.P. Gallagher

    Secretary:                                Mr. A.K. Griffiths


<PAGE>
                                      112

8.  Name of Subsidiary:                       GEC Plessey Semiconductors Japan 
                                              Limited

    Place of Incorporation/Registration:      Japan

    Registration Number:                      n/a

    Date of Incorporation:                    31st July 1991

    Registered Office:                        CTS Kojimachi Building
                                              12 Kojimachi 2-chome
                                              Chiyoda-ku
                                              Tokyo

    Share capital     -       authorised:     800 shares of par value (Y)50,000 
                                              each

                      -       issued:         200 shares of par value (Y)50,000
                                              each

    Registered Shareholder(s):                Plessey Semiconductors Limited

    Beneficial owner(s) of issued shares:     Plessey Semiconductors Limited

    Subsidiaries or subsidiary undertakings:  None

    Directors:                                Yoshitsugu Kudo 
                                              (Representative Director)
                                              Ernest Pusey
                                              Patrick Carroll

    Secretary:                                Yoshiharu Kutsukawa 
                                              (statutory auditor)


<PAGE>
                                      113

9.  Company Name:                             Marconi Electronic Devices SA

    Place of Incorporation/Registration:      France

    Registration Number:                      RCS Nanterre B 351 843 339

    Date of Incorporation:                    18th August, 1989

    Registered Office:                        2 Rue Henri Bergson, 
                                              92600 Asnieres

    Share capital     -       issued:         FFR9,650,000 comprising 
                                              96,500 shares of FFR100

    Registered Shareholder(s):                Plessey France SA    96,494
                                              Nigel Coulthard           1
                                              Anthony Gallagher         1
                                              Philip Wright             1
                                              Bernand Mercier           1
                                              Ernst Pusey               1
                                              Susan Ferguson            1

    Subsidiaries or subsidiary undertakings:  None

    Directors:                                Susan Ferguson
                                              Philip Wright
                                              Nigel Coulthard

    Secretary:


<PAGE>
                                      114


                                   Schedule 8
                                   ----------
                                Property Schedule

                               PART I - PROPERTIES



1.   FREEHOLD PROPERTIES WITH REGISTERED TITLE

<TABLE>
<CAPTION>
====================================================================================================================================
Property                                      Title Number               Use                    Legal Owner         Beneficial Owner
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                           <C>                        <C>                    <C>                 <C>
Sportsground at Hyde Road and Ermin Street,   WT139155                   Sportsground           Plessey             Plessey
Swindon, Wiltshire
====================================================================================================================================
</TABLE>


<PAGE>
                                                                115


2.        LEASEHOLD PROPERTIES WITH UNREGISTERED TITLE

<TABLE>
<CAPTION>
====================================================================================================================================
                                Date of                                                                                     Current 
Property                        Lease       Original Parties             Term           Current Rental       Current Use    Tenant
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                             <C>         <C>                          <C>            <C>                  <C>            <C>
Unit 1, Groundwell Industrial   4.8.1988    TSB Group Pension Trust      25 years from  (pound)82,000 p.a.   Factory        Plessey
Estate, Crompton Road,                      Limited (1)                  1.8.1983
Swindon, Wiltshire                          Plessey Properties
                                            Limited (2)
                                            The Plessey Company plc (3)
- ------------------------------------------------------------------------------------------------------------------------------------
Unit on ground and first        14.3.1996   Sun Alliance & London        15 years from  (pound)314,000 p.a.  Offices and    Plessey
floors of Cherry Orchard                    Assurance Company Limited    14.3.1996                           parking
North, Kembrey Park, Swindon,               (1) Plessey Semiconductors
Wiltshire and 5 parking spaces              Limited (2)
- ------------------------------------------------------------------------------------------------------------------------------------
69 parking spaces at Cherry     27.3.1997   Sun Alliance & London        From 27.3.1997 (pound)21,600 p.a.   Parking        Plessey
Orchard North, Kembrey                      Assurance Company            to 13.3.2011
Business Park, Swindon,                     Limited (1) Plessey 
Wiltshire                                   Semiconductors Limited (2)
====================================================================================================================================
</TABLE>


<PAGE>
                                                                116


<TABLE>
<CAPTION>
====================================================================================================================================
                                Date of                                                                                     Current 
Property                        Lease       Original Parties             Term           Current Rental       Current Use    Tenant
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                             <C>         <C>                          <C>            <C>                  <C>            <C>
1st Floor, East Wing,           8.12.1995   The Royal London Mutual      5 years from   (pound)22,228 p.a    Offices and    Plessey
Terminal 4, 3B2 Complex,                    Insurance Society Ltd. (1)   8.12.1995                           parking
Stonehill Green, West Lea,                  Plessey Semiconductors (2)
Wiltshire
- ------------------------------------------------------------------------------------------------------------------------------------
Unit H2, Hanover Business       25.12.1975  Tyne Tunnel Trading Estate   24 years from  (pound)11,750 p.a.   Workshop       Marconi
Park, Altrincham, Cheshire                  Ltd. (1)                     29.9.1975
                                            GEC Elliott Traffic
                                            Automation Ltd. (2)
====================================================================================================================================
</TABLE>


3.   ASSIGNED LEASES

<TABLE>
<CAPTION>
====================================================================================================================================
Property                Date of     Original Parties       Term           Rental before       Date of     Legal Owner    Assignee
                        Lease                                             Assignment          Assignment
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                     <C>         <C>                    <C>            <C>                <C>          <C>            <C>
Unit C, Wessex Road,    1.12.1972   Ravenseft Industrial   25 years from  (pound)34,400 p.a.  March 1987  Marconi        Vistek 
Bourne End, Bucks                   Estates Limited (1)    29.9.1972      (as at review                                  Electronics
                                    G. Ney (UK)                           on 29.9.1987)                                  Limited
                                    Limited (2)
====================================================================================================================================
</TABLE>


<PAGE>
                                                                117


<TABLE>
<CAPTION>
====================================================================================================================================
Property                Date of     Original Parties       Term           Rental before       Date of     Legal Owner    Assignee
                        Lease                                             Assignment          Assignment
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                     <C>         <C>                    <C>            <C>                <C>          <C>            <C>
Factory and offices at  17.3.1979   Borough of Swindon     99 years from  (pound)0.05 p.a.    28.4.1995   Marconi        Semitron
Hargreaves Road,                    (1) Tectonic           12.3.1979                                                     Industries
Groundwell Industrial               Electronics Limited                                                                  Limited
Estate, Swindon                     (2)
- ------------------------------------------------------------------------------------------------------------------------------------
Car Park at Stockfield  29.1.1988   The North Western      5 years from   (pound)750 p.a.     2.3.1992    Plessey        Hevermill
Road, Oldham, Greater               Electricity Board (1)  27.3.1987                                      Semicondutors  Limited
Manchester                          Ferranti plc (2)                                                      Limited
====================================================================================================================================
</TABLE>




<PAGE>
                                       118


                        PART II - CERTIFICATED PROPERTIES

4.   FREEHOLD CERTIFICATED PROPERTIES WITH REGISTERED TITLE

<TABLE>
<CAPTION>
====================================================================================================================================
Property                                      Title Number       Use                    Legal Owner             Beneficial Owner
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                           <C>                <C>                    <C>                     <C>  
107/108 Cheney Manor Industrial Estate,       WT137058           Factory and Offices    Plessey                 Plessey
Swindon, Wiltshire
- ------------------------------------------------------------------------------------------------------------------------------------
109 Cheney Manor Industrial Estate,           WY133655           Offices                Plessey                 Plessey
Swindon, Wiltshire
- ------------------------------------------------------------------------------------------------------------------------------------
Factory and Offices at Doddington Road,       LL16432            Factory and Offices    AEI
Lincoln, Lincolnshire
- ------------------------------------------------------------------------------------------------------------------------------------
Factory and Offices at Doddington Road,       LL29849            Factory and Offices    Marconi
Lincoln, Lincolnshire
- ------------------------------------------------------------------------------------------------------------------------------------
Factory and Offices adjacent to Tavistock     DN174695           Factory and Offices    Plessey                 Plessey
Road, Roborough, South Hams, Devon
- ------------------------------------------------------------------------------------------------------------------------------------
Land adjacent to Tamerton Road, Roborough,    DN278749           Field - lying fallow   U.K. Cablevision        U.K. Cablevision
South Hams, Devon                                                                       Limited                 Limited
====================================================================================================================================
</TABLE>

<PAGE>
                                       119




5.   LEASEHOLD CERTIFICATED PROPERTIES WITH REGISTERED TITLE

<TABLE>
<CAPTION>
====================================================================================================================================
Property                                      Title Number       Use                    Legal Owner             Beneficial Owner
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                           <C>                <C>                    <C>                     <C>  
Factory at Tweedale Way, Oldham, Greater      GM423330           Factory                Plessey                 Plessey
Manchester
- ------------------------------------------------------------------------------------------------------------------------------------
106 Cheney Manor Industrial Estate,           WT114971           Offices/               Plessey                 Plessey
Swindon, Wiltshire                                               Workshops
- ------------------------------------------------------------------------------------------------------------------------------------
Factory and offices adjacent to Tavistock     DN176582           Factory and Offices    Plessey                 Plessey
Road, Roborough, South Hams, Devon
====================================================================================================================================
</TABLE>



<PAGE>
                                       120


                           PART III - OVERSEAS OFFICES

<TABLE>
<CAPTION>
====================================================================================================================================
Country       Address                      Use               Tenure         Tenant/Licensee           Details of lease or licence
- ------------------------------------------------------------------------------------------------------------------------------------
<S>           <C>                          <C>               <C>            <C>                       <C>         
France        6 Avenue des Andes,          Offices           Leasehold      Plessey France S.A.       Term: 9 years from
              Courtabouf                                                                              25.2.1997
                                                                                                      Rent: FF213,000.00
                                                                                                      (indexed to INSEE
                                                                                                      construction index)
- ------------------------------------------------------------------------------------------------------------------------------------
France        26 Rue Augustin Fresnel,     Offices           Leasehold      GEC France S.A.           Letter in respect of one
              Chambrey Les Tours           and Factory                                                year lease extension to
                                                                                                      1.1.1999
- ------------------------------------------------------------------------------------------------------------------------------------
Germany       14/16 Grillparzerstrasse,    Offices and       Leasehold      Plessey GmbH              Term: 14.7.1997 to
              Munich                       Car Parking                      (represented              13.7.2007
                                                                            by Philip Wright)         Basic Rent: 14582,30 DM
                                                                                                      per month plus monthly
                                                                                                      ancillary costs and VAT at 15%
                                                                                                      Basic Rent increases by
                                                                                                      2.5% every year
====================================================================================================================================
</TABLE>


<PAGE>
                                        121


<TABLE>
<CAPTION>
====================================================================================================================================
Country       Address                      Use               Tenure         Tenant/Licensee           Details of lease or licence
- ------------------------------------------------------------------------------------------------------------------------------------
<S>           <C>                          <C>               <C>            <C>                       <C>         
- ------------------------------------------------------------------------------------------------------------------------------------
Italy         Cinisello Balsamo, Nr.       Offices           Leasehold      Plessey                   Term: 1.12.1995 to
              Milan                                                         Semiconductors            31.12.2001
                                                                            S.P.A.                    Rent: L 47 million p.a.
                                                                                                      plus expenses (subject to
                                                                                                      review)
- ------------------------------------------------------------------------------------------------------------------------------------
Japan         86.79 tsubo (286.91 m2) on    Offices.         Leasehold      GEC Plessey               Term from 1.7.1993 to
              4th Floor CTS Kojimachi                                       Semiconductors            30.6.1997
              Building Kojimachi 2-12                                       Japan Limited             Renewed to 30.6.1999
              Chiyoda-ku, Tokyo
- ------------------------------------------------------------------------------------------------------------------------------------
Korea         Cheon Woo Building, 736      Offices           Leasehold      GEC Plessey               Term: 1.11.1995 to
              Weoksam-Dong Kangnam-Ku,                                      Semiconductors            31.10.1997
              Seoul                                                         Overseas Limited          Rent: the lease is
                                                                                                      entered into on a Chonse
                                                                                                      (fully refundable
                                                                                                      security deposit) base
                                                                                                      without a rent The lease
                                                                                                      is being extended to
                                                                                                      31.10.1998

====================================================================================================================================
</TABLE>

<PAGE>
                               122


<TABLE>
<CAPTION>
====================================================================================================================================
Country       Address                      Use               Tenure         Tenant/Licensee           Details of lease or licence
- ------------------------------------------------------------------------------------------------------------------------------------
<S>           <C>                          <C>               <C>            <C>                       <C>         
Singapore                                  Offices
              No. 3 Tai Seng Drive,                          Licence        Plessey Semi conductors   Date: 16.1.1998
              Singapore 535216                                              Singapore Pte. Limited    Period: 6 months
                                                                                                      Fee: $15,193 plus General
                                                                                                      Sales Tax per month
- ------------------------------------------------------------------------------------------------------------------------------------
Taiwan        Worldwide House, 129-131     Offices and       Leasehold      Plessey Semiconductors    Term: 1.2.1997 to
              Min Sheng Road, Taipei       and Parking                      Taiwan                    31.1.2000 (with option to
                                                                                                      renew)
                                                                                                      Rent: from 1.2.1997 to
                                                                                                      31.1.1998
                                                                                                      NT$ 2,200 per ping per
                                                                                                      month
                                                                                                      Rent for parking space:
                                                                                                      NT$ 9,500 per month
                                                                                                      exclusive of VAT at 5%
- ------------------------------------------------------------------------------------------------------------------------------------
U.S.A.        Suite 355, City Block        Offices           Leasehold      GEC Plessey               Term : 5 years from
              8413, City of Dallas,                                         Semiconductors, Inc.      1.12.1994
              Dallas County, Texas                                                                    Basic Rent: $839.58 per
                                                                                                      month
====================================================================================================================================
</TABLE>



<PAGE>
                                   123


<TABLE>
<CAPTION>
====================================================================================================================================
Country       Address                      Use               Tenure         Tenant/Licensee           Details of lease or licence
- ------------------------------------------------------------------------------------------------------------------------------------
<S>           <C>                          <C>               <C>            <C>                       <C>         
U.S.A.        Suite 1, First Floor, 2      Offices           Leasehold      Plessey Semiconductor     Term: 15.7.1990 to
              Dedham Place, Dedham,                                         Corporation               30.11.1999
              Massachusetts                                                                           Base Rent: $102,327 p.a.
- ------------------------------------------------------------------------------------------------------------------------------------
U.S.A.        Suite 830, 2600 Michelson,   General           Leasehold      Plessey Inc.              Term: 5 years from
              Irvine, California           Office                                                     1.11.1993
                                                                                                      Rent: $6,183.00 per month
- ------------------------------------------------------------------------------------------------------------------------------------
U.S.A.        Land located in the City     Any lawful        Leasehold      Ferranti                  Term: 13.3.1986 to
              of Scotts Valley, County     business or                      Interdesign Inc.          12.3.2001 (subject to
              of Santa Cruz, California    commercial                                                 option to extend)
                                           purpose                                                    Base Rent: $1,095,924
                                                                                                      p.a. subject to rental
                                                                                                      adjustment
- ------------------------------------------------------------------------------------------------------------------------------------
U.S.A.        Ground Floor, 1735           Sales and         Leasehold      Plessey Inc.              Term: From 1.2.1991 to
              Technology Drive, San        engineering for                                            14.5.2001
              Jose, California             a Semiconductor                                            Basic Rent: $13,741.39
                                           Company                                                    per month
====================================================================================================================================
</TABLE>


<PAGE>
                                       124



                                   Schedule 9

                                     Part A

                        GEC Plessey Semiconductors Group
           Pro Forma Aggregated Balance Sheet as at 31 December 1997










<TABLE>
<CAPTION>

                        GEC PLESSEY SEMICONDUCTORS GROUP
            PROFORMA AGGREGATED BALANCE SHEET AS AT 31 DECEMBER 1997



                                      ACTUAL          ADJUSTMENTS            DIVIDENDS                LOAN PAYMENTS
                                                                      ----------------------      ----------------------

                                                                        USA          FRANCE         UK             PSL &
                                                                                                   MEDL         CABLEVISION
(pound)000
<S>                                   <C>                  <C>           <C>         <C>          <C>              <C>
Total Shareholders Equity              120,390             (1,329)        (11,976)    (363)
GEC Group Loans                         66,365                              6,886                  19,422            (92,673)

                               --------------- ------------------- -------------- ------------ ----------- -------------------
                                       186,755             (1,329)        (5,090)     (363)        19,422            (92,673)
                               =============== =================== ============== ============ =========== ===================
                                                                                                                          30
Fixed Assets at NBV                    169,715
Net Inventory                           39,313
Debtors & Prepaids - 3rd Party          35,085               (322)
GEC Group Trade Debtors                  1,962
Creditors                             (29,027)
GEC Group Trade Creditors                 (41)
Advances on Contracts                    (105)
Provisions                             (5,545)

                               --------------- ------------------- -------------- ------------ ----------- -------------------
CAPITAL EMPLOYED                       211,357               (322)                                                        30

Singapore and Japan Net Assets
at 31 March 1997                                               466
Tax                                    (4,998)             (1,473)
Notes Receivable                        4,593
Finance Leases                         (9,911)
Cash/(Bank Overdraft) - Net           (14,286)                            (5,090)        (363)     19,422            (92,703)
                               --------------- ------------------- -------------- ------------ ----------- -------------------
NET WORTH                              188,755             (1,329)        (5,090)        (363)     19,422            (92,673)
                               =============== =================== ============== ============ =========== ===================






<CAPTION>


                                                                          GROUP           PURCHASE     SALE OF
                                                                          TAXES          OF MEDSA      OLDHAM
                                                                        --------        ---------     -------



(pound)000
<S>                                                                       <C>           <C>           <C>
Total Shareholders Equity                                                   (117)         (1,010)       (2,900)
GEC Group Loans

                                                                     ------------- ---------------  ------------
                                                                            (117)         (1,010)       (2,900)
                                                                     ============= ===============  ============

Fixed Assets at NBV                                                                                     (7,300)
Net Inventory                                                                                           (3,700)
Debtors & Prepaids - 3rd Party                                                                            (300)
GEC Group Trade Debtors
Creditors                                                                                                  200
GEC Group Trade Creditors
Advances on Contracts
Provisions

                                                                     ------------- ---------------  ------------
CAPITAL EMPLOYED                                                                                       (11,100)

Singapore and Japan Net Assets
at 31 March 1997
Tax                                                                        (7,367)
Notes Receivable
Finance Leases
Cash/(Bank Overdraft) - Net                                                 7,250         (1,010)        8,200
                                                                     ------------- ---------------  ------------
NET WORTH                                                                   (117)         (1,010)       (2,900)
                                                                     ============= ===============  ============



<CAPTION>




                                                                      ISSUE OF
                                                                      SHARES          TOTAL
                                                                      --------        ------



(pound)000
<S>                                                                  <C>              <C>
Total Shareholders Equity                                              80,710         183,405
GEC Group Loans

                                                                 -------------  --------------
                                                                       80,710         183,405
                                                                 =============  ==============

Fixed Assets at NBV                                                                   162,445
Net Inventory                                                                          35,613
Debtors & Prepaids - 3rd Party                                                         34,463
GEC Group Trade Debtors                                                                 1,962
Creditors                                                                             (28,827)
GEC Group Trade Creditors                                                                 (41)
Advances on Contracts                                                                    (105)
Provisions                                                                             (5,545)

                                                                 -------------  --------------
CAPITAL EMPLOYED                                                                      199,965

Singapore and Japan Net Assets
at 31 March 1997                                                                          466
Tax                                                                                   (13,838)
Notes Receivable                                                                        4,593
Finance Leases                                                                         (9,911)
Cash/(Bank Overdraft) - Net                                           80,710            2,130
                                                                 -------------  --------------
NET WORTH                                                             80,710          183,405
                                                                 =============  ==============





Note:   No tax provision on results for 9 months to 31.12.97

</TABLE>



<PAGE>
                                      125

                                     Part B
                                     ------
                              GPS Swindon Operation

                      STANDARD RECOVERY AS AT JANUARY 1998


Cost per hour at operation
- --------------------------

                                            Labour           Overhead
Wafer fab
Implant                                      6.95             1.81
Stepper                                      6.95             0.27
Align                                        6.95             0.89
Etch                                         6.95             1.21
Strip                                        6.95             0.32
Diffusion                                    6.95             0.24
Silox                                        6.95             1.43
Epitaxy                                      6.95             2.81
PVCD                                         6.95             1.13
CVD                                          6.95             0.57
Par. test                                    6.95             3.34
General                                      6.95             0.76
MET                                          6.95             0.39
Oxide                                        6.95             0.45
Probe/Test
ATF                                          9.28            79.99
A310                                         9.28            52.33
A312                                         9.28            52.33
A360                                         9.28            37.03
A370                                         9.28            37.03
A530A                                        9.28            85.48
J283                                         9.28            52.33


<PAGE>
                                      126

Plymouth Std Recovery Rates FY97
- --------------------------------

Recovery Rate per Hour
- ----------------------

                                       Labour       Overhead          Total
                                       ------       --------          -----
Fab 3                                   2.63          32.57           35.20
                                        ----          -----           -----
Fab 8
Photo                                   2.49         156.82          159.31
                                        ----         ------          ------
Diffusion                               1.91         107.46          109.37
                                        ----         ------          ------
Etch                                    1.34          76.58           77.92
                                        ----          -----           -----
Films                                   2.30         115.10          117.40
                                        ----         ------          ------
Implant                                 7.78         173.14          180.92
                                        ----         ------          ------
Backgrind                              11.26         272.56          283.82
                                       -----         ------          ------

Probe & Test
LTX (Synchro)                          10.00          98.00          108.00
                                       -----          -----          ------
Credence (LT1000's)                    10.00          67.00           77.00
                                       -----          -----           -----
Advantest                              10.00          72.00           82.00
                                       -----          -----           -----
A300's                                 10.00          67.00           77.00
                                       -----          -----           -----
J941                                   10.00          59.00           69.00
                                       -----          -----           -----


<PAGE>
                                      127


Lincoln Product Costing Rates - Major Processes
- -----------------------------------------------

                                                Labour         Overhead
                                                ------         --------
Process                                       (pound)/hr      (pound)/hr
IC Fab:-
- --------
Projection Litho                                 4.64            26.18
IC Etch                                          3.79            18.58
Stepper Litho                                   38.14           449.73
Diffusion                                        3.55            33.78
CVD                                              6.66            48.03
Sputter                                         33.94           407.15
Implant                                         11.62            73.74

Probe                                            1.57             0.83

Power Fab:-
- -----------
BU Test                                         19.91            48.57
Metal                                            5.62            34.57
Diffusion                                        2.33            14.17
Photolith                                        3.76             9.16
Power Etch                                       5.92            12.08
Alloy                                            2.59            16.94
Bevel                                            9.20            28.51

IC Test:-
- ---------
SOS                                             13.14           116.51
Bulk                                             4.75            40.37
Burn-In/General                                  1.92             8.23

Power Test:-
- ------------
Power Device Assembly & Test                    10.29            25.11
IGBT Probe                                       3.46            11.38
IGBT Test & Module Assembly                     10.82            40.01

Board Systems                                    6.36            12.88


<PAGE>
                                      128


SIGNED on behalf of       )
The General Electric      )      /s/  G.D. Earle
Company, p.l.c. in the    )
presence of:              )

       /s/  R.R. Ogle



SIGNED on behalf of        )
Mitel Telecom Limited      )     /s/  Paul Butcher
by Paul Butcher            )
in the presence of:        )

       /s/  R.R. Ogle



SIGNED by Mitel            )
Corporation acting by      )
Donald McIntyre            )     /s/  J. Millard
and John Millard           )     /s/  D. McIntyre
under its authority        )
                           )





                                                                  Conformed Copy

                            DATED 12th February, 1998








                      THE GENERAL ELECTRIC COMPANY, P.L.C.
                                (the Covenantor)

                                       and

                              MITEL TELECOM LIMITED
                                 (the Purchaser)









                            -------------------------

                              DEED OF TAX COVENANT

                            -------------------------








                                Slaughter and May
                              35 Basinghall Street
                                 London EC2V 5DB
                                   (GJA/WNCW)


<PAGE>



                                    CONTENTS

                                                                            Page
                                                                            ----

 1. INTERPRETATION                                                             1

 2. COVENANT                                                                   8

 3. LIMITS ON CLAUSE 2                                                         9

 4. EXCLUSIONS                                                                11

 5. MITIGATION                                                                11

 6. PAYMENT FOR GROUP RELIEF                                                  12

 7. OVER-PROVISIONS, RELIEFS, ETC                                             13

 8. RECOVERY FROM OTHER PERSONS                                               14

 9. CLAIMS PROCEDURE                                                          14

10. TAX RETURNS                                                               15

11. DUE DATE OF PAYMENT                                                       16

12. DEDUCTIONS FROM PAYMENTS, ETC                                             17

13. SURRENDER OF GROUP RELIEF                                                 18

14. COUNTER COVENANT                                                          19

15. DEEMED END OF ACCOUNTING PERIOD                                           21

16. VAT                                                                       21

17. REMEDIES AND WAIVERS                                                      21

18. ASSIGNMENT                                                                22

19. FURTHER ASSURANCE                                                         23

20. NOTICES                                                                   23

21. COUNTERPARTS                                                              24

22. TIME OF ESSENCE                                                           24

23. INVALIDITY                                                                24


<PAGE>

24. GOVERNING LAW                                                             24

25. JURISDICTION                                                              24


<PAGE>


THIS DEED OF TAX COVENANT is made on the 12th day of February, 1998

BETWEEN: -

(1)  THE GENERAL ELECTRIC COMPANY, p.l.c.(registered in England No. 67307),
     having its registered office at 1 Stanhope Gate, London W1A 1EH (the
     "Covenantor"); and

(2)  MITEL TELECOM LIMITED (registered in England No. 1309629), having its
     registered office at Portskewett, Gwent NP6 4YR(the "Purchaser").

NOW THIS DEED WITNESSES as follows:-

1.   INTERPRETATION

In this deed of covenant:-

     (i)  the following expressions shall have the following meanings:-

          "Accounts"                    means, in relation to each Group
                                        Company, its audited balance sheet and
                                        profit and loss account drawn up as at
                                        the Accounts Date;

          "Accounts Date"               means 31st March, 1997;

          "Agreement"                   means the agreement for the sale and
                                        purchase of the Shares (as therein
                                        defined) made between the Covenantor and
                                        the Purchaser;

          "Business Day"                means a day (other than a Saturday or a
                                        Sunday) on which banks are open for
                                        business in London;

          "Claim"                       means the issue of any notice, Tax
                                        Assessment, letter or other document by
                                        or on behalf of any Tax Authority or the
                                        taking of any other action by or on
                                        behalf of any Tax Authority from which
                                        notice, letter, document or action it
                                        appears either that a Tax Liability is
                                        to be or has been imposed on a Group
                                        Company or, in the context of clause 14
                                        (Counter Covenant), that a liability or
                                        increased liability to Tax is to be or
                                        has been imposed on the Covenantor
                                        and/or any of its subsidiaries;

          "Completion"                  means completion of the sale and
                                        purchase of the Shares under the
                                        Agreement;


<PAGE>
                                       2


          "Covenantor's Group"          means The General Electric Company,
                                        p.l.c. and all its subsidiaries or
                                        subsidiary undertakings from time to
                                        time other than the Group Companies;

          "Distribution"                has the meaning given in paragraph
                                        (iii)(c);

          "Event"                       includes (without limitation):-

                                        (a) any transaction, act or omission
                                            (whether or not a Group Company is a
                                            party to it);

                                        (b) the actual or deemed earning,
                                            receipt or accrual for any Tax 
                                            purpose of any Income, Profits or
                                            Gains;

                                        (c) the incurring for any Tax purpose of
                                            any loss or expenditure;

                                        (d) the declaration, payment or making
                                            of any Distribution;

                                        (e) the sale and purchase of the Shares
                                            pursuant to the Agreement; and

                                        (f) Completion;

          "Group"                       has the meaning given to it in the
                                        Agreement;

          "Group Company"               has the meaning given to it in the
                                        Agreement;

          "Group Relief"                means any loss, allowance or other
                                        amount eligible for surrender by way of
                                        group relief in accordance with the
                                        provisions contained in sections 402 to
                                        413 ICTA and any advance corporation tax
                                        eligible for surrender in accordance
                                        with section 240 ICTA;

          "ICTA"                        means the Income and Corporation Taxes
                                        Act 1988;

          "Income, Profits or Gains"    has the meaning given in paragraph
                                        (iii)(a);

          "Marconi SA"                  has the meaning given to it in the
                                        Agreement;

<PAGE>
                                       3


          "Plessey"                     means Plessey Semiconductors Limited,
                                        registered in England No. 705031 and
                                        having its registered office at Cheney
                                        Manor, Swindon, Wiltshire SN2 2QW;

          "Proceedings"                 means any proceeding, suit or action
                                        arising out of or in connection with
                                        this deed;

          "Purchaser's Tax Relief"      means any Relief arising after
                                        Completion and any Relief which was
                                        treated as an asset of a Group Company
                                        in preparing the Accounts (including any
                                        Relief which has been taken into account
                                        in computing any provision for deferred
                                        Tax which appears in the Accounts or
                                        which would have appeared in the
                                        Accounts but for the assumed
                                        availability of such Relief);

          "Relief"                      means any relief, allowance or credit in
                                        respect of any Tax, any deduction in
                                        computing Income, Profits or Gains for
                                        the purposes of any Tax and any right to
                                        repayment of Tax;

          "Severance Date"              has the meaning given to it in clause 16
                                        (VAT);

          "Shares"                      has the meaning given to it in the
                                        Agreement;

          "Tax"                         means: -

                                        (a) within the United Kingdom, all forms
                                            of tax, duty, rate, levy, related
                                            charge or other imposition or
                                            withholding whatever and by whatever
                                            authority imposed and includes
                                            (without limitation) income tax
                                            (including income tax required to be
                                            deducted or withheld from or
                                            accounted for in respect of any
                                            payment), corporation tax, advance
                                            corporation tax, capital gains tax,
                                            capital transfer tax, inheritance
                                            tax, petroleum revenue tax, value
                                            added tax, customs duties, excise
                                            duties, lottery duty, air passenger
                                            duty, insurance premium tax, rates
                                            (including the uniform business
                                            rate), stamp duty reserve tax,
                                            national insurance and other similar
                                            contributions, any liability arising
                                            under section 419, section 601 or
                                            section 703

<PAGE>
                                       4


                                            of ICTA and any other taxes, duties,
                                            rates, levies, charges, imposts or
                                            withholdings corresponding to,
                                            similar to, replaced by or replacing
                                            any of them, together with any
                                            interest, penalty or fine in
                                            connection with any Tax; and

                                        (b) outside the United Kingdom, all
                                            forms of tax, levy, duty, impost,
                                            deduction, withholding or related
                                            charge of any nature whatsoever,
                                            including (without limitation) taxes
                                            on gross or net Income, Profits or
                                            Gains and taxes on receipts, sales,
                                            use, capital, business, property,
                                            consumption, transfer, occupation,
                                            franchise, value added and personal
                                            property, together with all
                                            penalties, charges and interest
                                            relating to any of them,

                                        regardless (in either case) of whether
                                        any such taxes, levies, duties, rates,
                                        imposts, charges, withholdings,
                                        penalties, fines and interest are
                                        chargeable directly or primarily against
                                        or attributable directly or primarily to
                                        a Group Company or any other person and
                                        of whether any amount in respect of any
                                        of them is recoverable from any other
                                        person as mentioned in clause 8
                                        (Recovery from Other Persons);

          "Tax Assessment"              means any assessment, demand or other
                                        similar formal notice of a Tax Liability
                                        issued by or on behalf of any Tax
                                        Authority by virtue of which a Group
                                        Company or, in the context of clause 14
                                        (Counter Covenant), the Covenantor or
                                        any of its subsidiaries, either is
                                        liable to make a payment of Tax or will,
                                        with the passing of time, become so
                                        liable (in the absence of any successful
                                        application to postpone any such
                                        payment);

          "Tax Authority"               means any taxing or other authority
                                        (whether within or outside the United
                                        Kingdom) competent to impose any Tax
                                        Liability;

          "Tax Liability"               has the meaning given in paragraph
                                        (ii)(a);

<PAGE>
                                       5


          "Transfer Pricing Adjustment" means any allocation, reallocation,
                                        apportionment, distribution or
                                        redistribution of price, gross or net
                                        income, costs, expenses, deductions,
                                        credits or allowances or the
                                        redetermination or recharacterisation of
                                        any feature of any transaction by a Tax
                                        Authority in respect of a transaction
                                        between a Group Company and any other
                                        Group Company or any member of the
                                        Covenantor's Group in order to reflect
                                        the terms, conditions and arrangements
                                        which would have prevailed or been made
                                        if the parties to the transaction had
                                        been independent persons dealing at
                                        arm's length;

          "VAT"                         means the tax imposed by the Sixth
                                        Council Directive of the European
                                        Communities;

          "VATA"                        means the Value Added Tax Act 1994;

          "VAT Group"                   means any group of companies for the
                                        purposes of section 43 VATA of which a
                                        Group Company is or has been a member on
                                        or before Completion; and

          "Working Hours"               means 9.30 a.m. to 5.30 p.m. on a
                                        Business Day;

     (ii) (a)  references to any "Tax Liability" of a Group Company shall mean
               any such liability, inability or charge as is mentioned in clause
               2(i) to clause 2(iv) and also:

               (A)  any other liability of a Group Company to make a payment in
                    respect of Tax (whether or not that company is primarily so
                    liable and whether or not that company has any right of
                    recovery from any other person);

               (B)  the failure to obtain the benefit of any repayment of Tax
                    which has been taken into account or otherwise assumed to be
                    available in the preparation of the Accounts;

               (C)  the utilisation of a Purchaser's Tax Relief in circumstances
                    where, but for such utilisation, any such liability to Tax
                    as is mentioned in (A) above would have arisen in respect of
                    which the Purchaser would have been able to make a claim
                    under this deed;

               (D)  the loss of a Purchaser's Tax Relief (other than a Relief
                    arising after Completion); and

<PAGE>
                                       6


               (E)  any liability to repay the whole or any part of any payment
                    received or receivable by a Group Company in respect of a
                    surrender of Group Relief made before Completion;

               and references to an "'A' Tax Liability", a "'B' Tax Liability"
               (and so on) shall be construed accordingly; and

          (b)  in any case falling within sub-paragraph (a) of this paragraph,
               the amount that is to be treated for the purposes of this deed as
               a Tax Liability of the relevant Group Company shall be determined
               as follows:-

               (1)  in respect of an 'A' Tax Liability, the amount of the
                    relevant payment which a Group Company is liable to make;

               (2)  in respect of a 'B' Tax Liability, the amount of the
                    relevant repayment the benefit of which is not obtained;

               (3)  in respect of a 'C' Tax Liability, the amount by which a Tax
                    Liability is reduced by means of the relevant utilisation of
                    a Purchaser's Tax Relief;

               (4)  in respect of a 'D' Tax Liability, the amount of Tax payable
                    (if any) which would not have been payable had there been no
                    loss of the relevant Purchaser's Tax Relief; and

               (5)  in respect of an 'E' Tax Liability, the amount of the
                    repayment which a Group Company is liable to make;

     (iii) references to:-

          (a)  "Income, Profits or Gains" shall include development value and
               any other standard or measure for the purposes of any Tax and
               shall also include any income, profits or gains which are deemed
               to be earned, accrued or received for the purposes of any Tax;

          (b)  Income, Profits or Gains (as defined in sub-paragraph (a) of this
               paragraph) as being earned, accrued or received on or before a
               particular date or in respect of a particular period shall mean
               Income, Profits or Gains which are regarded as having been, or
               are deemed to have been, earned, accrued or received on or before
               that date or in respect of that period for the purposes of any
               Tax;

          (c)  any "Distribution" shall include anything which is, or is deemed
               to be, a dividend or distribution for the purposes of any Tax and
               shall also include any other Event which gives rise to an
               obligation to account for 

<PAGE>
                                       7


               advance corporation tax or amounts corresponding to or similar to
               advance corporation tax;

          (d)  any Distribution as occurring on or before a particular date
               shall include any Distribution which has fallen due to be made on
               or before that date for the purposes of any Tax; and

          (e)  any "subsidiary of the Covenantor" shall mean any company of
               which the Covenantor has control for the purposes of section 416
               ICTA; and

     (iv) unless otherwise specified:-

          (a)  references to clauses, sub-clauses, paragraphs and sub-paragraphs
               are to clauses, sub-clauses, paragraphs and sub-paragraphs of
               this deed;

          (b)  a reference to any statute or statutory provision shall be
               construed as a reference to the same as it may have been, or may
               from time to time be, amended, modified or re-enacted;

          (c)  references to a "person" shall be construed so as to include any
               individual, firm, company, government, state or agency of a state
               or any joint venture, association or partnership (whether or not
               having separate legal personality);

          (d)  references to a "company" shall be construed so as to include any
               company, corporation or other body corporate, wherever and
               however incorporated or established;

          (e)  the expression "body corporate" shall have the meaning given in
               the Companies Act 1985;

          (f)  references to writing shall include any modes of reproducing
               words in a legible and non-transitory form;

          (g)  references to times of the day are to London (United Kingdom)
               time;

          (h)  headings to clauses and the schedule are for convenience only and
               do not affect the interpretation of this deed;

          (i)  references to any English legal term for any action, remedy,
               method of judicial proceeding, legal document, legal status,
               court, official, or any legal concept or thing shall in respect
               of any jurisdiction other than England be deemed to include what
               most nearly approximates in that jurisdiction to the English
               legal term; and

          (j)  (1)  the rule known as the ejusdem generis rule shall not apply
                    and accordingly general words introduced by the word "other"
                    shall

<PAGE>
                                       8


                    not be given a restrictive meaning by reason of the fact
                    that they are preceded by words indicating a particular
                    class of acts, matters or things; and

               (2)  general words shall not be given a restrictive meaning by
                    reason of the fact that they are followed by particular
                    examples intended to be embraced by the general words.

2.   COVENANT

Subject to the provisions of this deed, the Covenantor hereby covenants with the
Purchaser to pay to the Purchaser (so far as possible by way of repayment of the
consideration paid under the Agreement for the Shares) an amount calculated in
accordance with clause 1(ii)(b) in respect of any Tax Liability of a Group
Company (including a Tax Liability resulting from a Transfer Pricing Adjustment)
which has arisen or may arise in consequence of or in connection with any Event
which occurred or is deemed to occur on or before Completion, whether or not
that Tax Liability has been discharged on or before Completion save to the
extent that such discharge is taken into account in the Accounts, and also an
amount equal to any of the following:

     (i)  (for the avoidance of doubt) any liability or increased liability to
          Tax of a Group Company which is chargeable directly or primarily
          against or attributable directly or primarily to any company, not
          being a Group Company, that may be treated for the purposes of any Tax
          as being, or as having at any time been, either a member of the same
          group of companies as the Covenantor or otherwise associated with the
          Covenantor (a "Relevant Company"), and which arises as a result of the
          failure of any Relevant Company to discharge that liability or
          increased liability; or

     (ii) any liability of a Group Company to account for VAT on supplies made
          by another member of the VAT Group (not being a Group Company) before
          the Severance Date, and any inability of a Group Company to claim any
          credit or deduction for any amounts in respect of VAT incurred on
          supplies made to that Group Company in the period (if any) between
          Completion and the Severance Date to which that Group Company would
          have been entitled had it not continued to be a member of the VAT
          Group in that period;

    (iii) any liability of Plessey or Marconi SA to account for VAT in respect
          of supplies made between them in the period between the Accounts Date
          and Completion, including any related interest, fine or penalty but
          taking into account any corresponding benefit accruing to the
          recipient of the supply;

     (iv) any stamp duty which is charged on any document to which a Group
          Company has become a party before Completion and by virtue of which
          any Group Company has any right material to the business of that Group
          Company, in circumstances where:-

<PAGE>
                                       9


          (a)  the production of that document is required by the Inland
               Revenue; or

          (b)  that document must be produced before a registrar or other person
               performing the functions of a registrar in order to establish the
               title of a Group Company to any asset; or

          (c)  that document is to be given in evidence in civil proceedings in
               the United Kingdom,

          together with any interest, fine or penalty relating to any stamp duty
          so charged; or

     (v)  any out-of-pocket legal and accounting costs and expenses reasonably
          and properly incurred by the Purchaser and/or a Group Company in
          connection either with any such Tax Liability, other liability,
          inability or charge to stamp duty as is mentioned in this clause or
          with any Claim therefor, or in taking or defending any action under
          this deed or pursuant to clause 5 (Mitigation) or clause 6 (Payment
          for Group Relief).

3.   LIMITS ON CLAUSE 2

The covenant given in clause 2 (Covenant) shall not cover any Tax Liability of
any Group Company:-

     (i)  to the extent that provision or reserve in respect of that Tax
          Liability was made in the Accounts; or

     (ii) to the extent that that Tax Liability (not being such a liability,
          inability or charge as is mentioned in clause 2(i) to clause 2(iv) nor
          a Tax Liability resulting from a Transfer Pricing Adjustment) would
          not have arisen but for an Event occurring in the ordinary course of
          business of the relevant Group Company in the period between the
          Accounts Date and Completion; or

    (iii) to the extent that that Tax Liability arises or is increased as a
          result only of any increase in rates of Tax or any change in law or
          practice or any withdrawal of any extra-statutory concession by a Tax
          Authority or any change in accountancy practice or principles
          generally accepted in the relevant jurisdiction, being an increase,
          withdrawal or change made, in any such case, after Completion with
          retrospective effect; or

     (iv) to the extent that that Tax Liability would not have arisen but for a
          voluntary transaction, action or omission carried out or effected by a
          Group Company at any time after Completion, other than any such
          transaction, action or omission:-

          (a)  carried out or effected under a legally binding commitment
               created on or before Completion; or

<PAGE>
                                       10


          (b)  carried out or effected in the ordinary course of the trade
               carried on by the relevant Group Company as at Completion; or

          (c)  involving the proper disclosure to a Tax Authority of any matter
               which the Purchaser reasonably considers to be relevant to the
               calculation of a liability to Tax; or

     (v)  to the extent that that Tax Liability would not have arisen or would
          have been reduced but for a failure or omission on the part of the
          Purchaser and/or a Group Company after Completion to make any election
          or claim any Relief, the making or claiming of which was taken into
          account in computing the provision or reserve for Tax in the Accounts;
          or

     (vi) to the extent that that Tax Liability arises by reason of a voluntary
          disclaimer by a Group Company after Completion of the whole or part of
          any allowance (not being a Purchaser's Tax Relief) to which it is
          entitled under Part II of the Capital Allowances Act 1990 or by reason
          of the revocation by a Group Company after Completion of any claim for
          Relief (not being a Purchaser's Tax Relief) made (whether
          provisionally or otherwise) by it prior to Completion; or

    (vii) to the extent that that Tax Liability arises as a result of any
          changes after Completion in the bases, methods or policies of
          accounting of the Purchaser or a Group Company, save where (in the
          case of the bases, methods or policies of accounting of a Group
          Company) such changes are required to conform those bases, methods or
          policies with generally accepted bases, methods or policies as they
          apply in the relevant jurisdiction at Completion or where such changes
          are otherwise required to correct an improper basis, method or policy;
          or

   (viii) to the extent that that Tax Liability has been made good by insurers
          or otherwise compensated for without cost to the Purchaser and/or a
          Group Company; or

     (ix) to the extent that any Income, Profits or Gains to which that Tax
          Liability is attributable were actually earned and received by a Group
          Company but were not (in either such case) reflected in the Accounts;
          or

     (x)  to the extent that that Tax Liability arises or is increased as a
          consequence of any failure by the Purchaser or a Group Company to
          comply with any of their respective obligations under clauses 5
          (Mitigation), 9 (Claims Procedure), 10 (Tax Returns), 13 (Surrender of
          Group Relief) or 14 (Counter Covenant); or

     (xi) to the extent that that Tax Liability would not have arisen but for a
          cessation of, or any change in the nature or conduct of, any trade
          carried on by a Group Company, being a cessation or change occurring
          on or after Completion or a gradual change which began before
          Completion.

<PAGE>
                                       11


4.   EXCLUSIONS

(A)  Save in relation to a Tax Liability arising from the fraud or wilful
     misconduct of the Covenantor or a Group Company prior to Completion, the
     Covenantor shall not be liable under this deed in respect of any Tax
     Liability unless the Tax Liability in question shall have arisen within
     seven years from Completion and the Purchaser shall by notice in writing to
     the Covenantor have given such details of the Claim, the matter giving rise
     to that Tax Liability and the amount claimed in respect thereof as are
     available to it or to a Group Company.

(B)  The provisions of sub-paragraph 3.1 of Schedule 4 to the Agreement shall,
     to the extent that they refer to this deed, apply to this deed as if set
     out herein.

5.   MITIGATION

The Purchaser shall, at the direction in writing of the Covenantor, procure that
each Group Company take all such reasonable and lawful steps as the Covenantor
may specifically require by notice in writing following Completion to:-

     (i)  use in the manner hereinafter mentioned all such Reliefs other than
          Purchaser's Tax Reliefs arising as a consequence of or by reference to
          any Event occurring (or deemed to occur) on or before Completion or in
          respect of a period ended on or before Completion as are available to
          each Group Company to reduce or eliminate any Tax Liability in respect
          of which the Purchaser would have been able to make a claim against
          the Covenantor under this deed (such Reliefs including, without
          limitation, Reliefs made available to a company by means of a
          surrender from another company), the said use being to effect the
          reduction or elimination of any such Tax Liability to the extent
          specified by the Covenantor and permitted by law, and to provide to
          the Covenantor, at the Covenantor's expense, a certificate from the
          auditors (for the time being) of each relevant Group Company
          confirming that all such Reliefs have been so used;

     (ii) make all such claims and elections specified by the Covenantor in
          respect of any accounting period of the relevant Group Company ending
          on or before or deemed to end on or before Completion as have the
          effect of reducing or eliminating any such Tax Liability as is
          mentioned in paragraph (i), provided that no such claim or election
          shall require that Group Company to use any Purchaser's Tax Relief;
          and

    (iii) allow the Covenantor to reduce or eliminate any Tax Liability by
          surrendering or procuring the surrender by any company not being a
          Group Company of Group Relief to any Group Company to the extent
          permitted by law but without any payment being made in consideration
          for such surrender.

<PAGE>
                                       12


6.   PAYMENT FOR GROUP RELIEF

(A)  Subject to the following provisions of this clause 6, the Purchaser shall
     procure that (to the extent permitted by law) Plessey shall, in respect of
     any accounting period ended on or before Completion, make, give or enter
     into such claims, elections, notices or consents (whether unconditional or
     conditional, whether or not forming part of any other return or tax
     document and whether provisional or final, and including amendments to or
     withdrawals of earlier claims, elections, notices or consents) as the
     Covenantor shall direct in writing in connection with the surrender of any
     Group Relief by any member of the Covenantor's Group (the "Relevant
     Member") to Plessey. Except where Group Relief is surrendered to Plessey by
     the Relevant Member in order to reduce or eliminate a Tax Liability in
     respect of which the Purchaser would otherwise have been able to make a
     claim against the Covenantor under this deed, payment shall be made in
     respect of any such surrender as provided in the following provisions of
     this clause 6.

(B)  If, in respect of any accounting period ended on or before Completion:-

     (i)  Plessey has paid Tax and a surrender effected pursuant to sub-clause
          (A) above has the effect of causing a repayment of some or all of that
          Tax; or

     (ii) provision for Tax is made in the Accounts and a surrender effected
          pursuant to sub-clause (A) has the effect of discharging all or part
          of the liability represented by that provision,

     the Purchaser shall procure that a payment for Group Relief shall be made
     in respect of any such surrender by Plessey to the Relevant Member to the
     extent, if any, provided for by sub-clause (C) and at the time provided for
     by sub-clause (D).

(C)  The amount of any such payment as is referred to in sub-clause (B) shall be
     equal to:-

     (i)  in a case where paragraph (B)(i) applies, the amount of Tax so repaid
          (together with any repayment supplement or interest relating thereto);
          and

     (ii) in a case where paragraph (B)(ii) applies, the amount of Tax saved as
          a result of the relevant surrender, up to a maximum of the amount in
          respect of which provision is made in the Accounts.

(D)  Any payment under sub-clause (B) shall be made:-

     (i)  in a case where paragraph (B)(i) applies, on the date two Business
          Days after the date on which such repayment is received or would be
          received but for being offset by some other liability to Tax; and

     (ii) in a case where paragraph (B)(ii) applies, on the later of the date on
          which such Tax would have become due and payable and two Business Days
          after 

<PAGE>
                                       13


          the date on which notice is given by the Covenantor to the Purchaser
          of such surrender.

(E)  If a payment is made under sub-clause (B) and the surrender to which it
     relates is subsequently determined to have been excessive, invalid or to
     any extent ineffective, then the Covenantor shall procure that the payment
     so made (or so much of it as relates to such part of the surrender found to
     be excessive, invalid or ineffective) shall be refunded as soon as
     practicable thereafter, together with interest from the date of payment
     until the date of the refund at the rate of 2 per cent. above the base rate
     from time to time of National Westminster Bank plc.

7.   OVER-PROVISIONS, RELIEFS, ETC.

(A)  If the auditors for the time being of the relevant Group Company shall
     certify (at the request and expense of the Covenantor) that any provision
     for Tax in the Accounts (excluding any provision for deferred Tax and, for
     the avoidance of doubt, not including any provision for anything other than
     Tax) has proved to be an over-provision, then the amount of such
     over-provision shall be dealt with in accordance with sub-clause (C).

(B)  If the auditors for the time being of the relevant Group Company shall
     certify (at the request and expense of the Covenantor) that any Tax
     Liability which has resulted in a payment having been made by the
     Covenantor under this deed gives rise to a Relief for that Group Company
     which would not otherwise have arisen, then the amount of that Relief shall
     be dealt with in accordance with sub-clause (C); provided that if the
     Relief in question is a deduction from or offset against Income, Profits or
     Gains, the amount to be so dealt with shall be a sum equal to the amount of
     Tax that is saved through the use of that Relief.

(C)  Where it is provided under sub-clause (A) or (B) that any amount (the
     "Relevant Amount") is to be dealt with in accordance with this sub-clause:-

     (i)  the Relevant Amount shall first be set off against any payment then
          due from the Covenantor under this deed or in respect of the
          warranties relating to Tax which appear in Schedule 3 to the Agreement
          (the "Tax Warranties"); and

     (ii) to the extent there is an excess, a refund shall be made to the
          Covenantor of any previous payment or payments made by the Covenantor
          under this deed or in respect of the Tax Warranties (and not
          previously refunded under this clause) up to the amount of such
          excess; and

    (iii) to the extent that the excess referred to in paragraph (ii) of this
          sub-clause is not exhausted under that paragraph, the remainder of
          that excess shall be carried forward and set off against any future
          payments which become due from the Covenantor under this deed or in
          respect of the Tax Warranties.

<PAGE>
                                       14


(D)  Where any such certification as is mentioned in sub-clause (A) or (B) has
     been made, the Covenantor, the Purchaser or the relevant Group Company may
     (at the expense of the person making the request) request the auditors for
     the time being of that Group Company to review such certification in the
     light of all relevant circumstances, including any facts which have become
     known only since such certification, and to certify whether such
     certification remains correct or whether, in the light of those
     circumstances, the amount that was the subject of such certification should
     be amended.

(E)  If the auditors certify under sub-clause (D) that an amount previously
     certified should be amended, that amended amount shall be substituted for
     the purposes of sub-clause (C) as the Relevant Amount in respect of the
     certification in question in place of the amount originally certified, and
     such adjusting payment (if any) as may be required by virtue of the
     above-mentioned substitution shall be made as soon as practicable by the
     Covenantor or (as the case may be) to the Covenantor.

8.   RECOVERY FROM OTHER PERSONS

If, in the event of any payment becoming due from the Covenantor under clause 2
(Covenant), a Group Company either is immediately entitled at the due date for
the making of that payment to recover from any person (including any Tax
Authority) any sum in respect of the Tax Liability that has resulted in that
payment becoming due from the Covenantor, or at some subsequent date becomes
entitled to make such a recovery, then the Purchaser shall procure that the
Group Company entitled to make that recovery shall promptly notify the
Covenantor of its entitlement and shall, if so required in writing by the
Covenantor and at the Covenantor's sole expense, take appropriate steps to
enforce that recovery (keeping the Covenantor fully and promptly informed of the
progress of any action taken); and if the Covenantor has made a payment under
clause 2 (Covenant) in respect of the Tax Liability in question, the Purchaser
shall account to the Covenantor for whichever is the lesser of:-

     (i)  any sum so recovered by the relevant Group Company in respect of that
          Tax Liability (including any interest or repayment supplement paid by
          the Tax Authority or other person on or in respect thereof less any
          Tax chargeable on that Group Company in respect of that interest); and

     (ii) the amount paid by the Covenantor under clause 2 (Covenant) in respect
          of that Tax Liability.

9.   CLAIMS PROCEDURE

(A)  Upon the Purchaser or a Group Company becoming aware of a Claim relevant
     for the purposes of clause 2 of this deed, the Purchaser shall as soon as
     reasonably practicable give written notice of that Claim to the Covenantor
     or, as the case may be, shall procure that the relevant Group Company give
     written notice of that Claim to the Covenantor as soon as reasonably
     practicable, and the Purchaser shall further procure that the relevant
     Group Company (if the Covenantor shall indemnify the 


<PAGE>
                                       15


     Purchaser and/or the Group Company in question to their reasonable
     satisfaction against all losses, costs, damages and expenses, including
     interest on overdue Tax, which may be incurred thereby) take such action
     and give such information and assistance in connection with the affairs of
     the relevant Group Company as the Covenantor may reasonably and promptly by
     written notice request to avoid, resist, appeal or compromise the Claim and
     in particular, to the extent that a Claim relates to a Transfer Pricing
     Adjustment, that the relevant Group Company send to the Covenantor a draft
     of any letter or other document which it is proposed be sent or made
     available to a Tax Authority and that before the letter or other document
     is so sent or made available it is amended in accordance with any
     reasonable request of the Covenantor made by notice in writing to the
     Purchaser within 21 days of the date on which the said draft is sent to the
     Covenantor;

     PROVIDED THAT the Purchaser shall not be obliged to procure that a Group
     Company appeal against any Tax Assessment if, the Covenantor having been
     given written notice of the receipt of that Tax Assessment in accordance
     with the preceding provisions of this sub-clause, that Group Company has
     not within 21 days thereafter received specific instructions in writing
     from the Covenantor, in accordance with the preceding provisions of this
     sub-clause, to make that appeal and the Purchaser shall not be obliged to
     procure that a Group Company contest any Tax Assessment before any court or
     other appellate body (excluding the authority or body demanding the Tax in
     question) unless the Covenantor furnishes the Purchaser with the written
     opinion of tax counsel of not less than ten years' standing to the effect
     that an appeal against the Tax Assessment in question is on a balance of
     probabilities likely to be won or is (comparing the amount of Tax demanded
     with the cost of making the appeal) otherwise reasonable.

(B)  The actions which the Covenantor may reasonably request under sub-clause
     (A) shall include (without limitation) the relevant Group Company applying
     to postpone (so far as legally possible) the payment of any Tax and/or
     allowing the Covenantor to take on or take over at its own expense the
     conduct of all or any proceedings of whatsoever nature arising in
     connection with the Claim in question, and, if the Covenantor takes on or
     takes over the conduct of proceedings, the Purchaser shall provide and
     shall procure that the relevant Group Company provide such information and
     assistance as the Covenantor may reasonably require in connection with the
     preparation for and conduct of those proceedings.

10.  TAX RETURNS

(A)  The Covenantor or its duly authorised agent shall prepare the Tax returns
     of each Group Company and any related documentation required by a Tax
     Authority for all accounting periods ended on or prior to the Accounts
     Date, to the extent that the same shall not have been prepared before
     Completion, and the Covenantor shall ensure that a copy of the Tax returns
     and any such other documentation is received by the Purchaser not less than
     ten Business Days before the date by which the Tax returns or documentation
     are to be received by the relevant Tax Authority.

<PAGE>
                                       16


(B)  The Purchaser shall procure that the Group Companies shall cause the
     returns mentioned in sub-clause (A) to be authorised, signed and submitted
     to the appropriate authority without amendment or with such amendments as
     the Covenantor shall agree and shall give the Covenantor or its agent all
     such assistance as may be required to agree those returns with the
     appropriate authorities;

     PROVIDED THAT the Purchaser shall not be obliged to procure that a Group
     Company take any such action as is mentioned in this sub-clause in relation
     to any Tax return that is not true and accurate in all material respects.

(C)  The Covenantor or its duly authorised agent shall prepare all documentation
     and deal with all matters (including correspondence) relating to the Tax
     returns of each Group Company for all accounting periods ended on or prior
     to the Accounts Date and the Purchaser shall procure that each Group
     Company shall afford such access to its books, accounts and records as is
     necessary and reasonable to enable the Covenantor or its duly authorised
     agent to prepare those returns and conduct matters relating thereto in
     accordance with the Covenantor's rights under this clause.

(D)  The Purchaser shall procure that the Covenantor is sent a draft of the Tax
     returns of each Group Company for the accounting period beginning before
     and ending on or after Completion at least one month before its intended
     submission to a Tax Authority and that its final form contains such
     alterations as the Covenantor may require in respect of any matter which
     might give rise to a Transfer Pricing Adjustment and also, in the case of
     Plessey, in respect of any matter which to a material extent affects or
     might affect the amount of Group Relief available for surrender under
     clause 13 (Surrender of Group Relief).

(E)  Nothing done by any Group Company pursuant to this clause shall in any
     respect restrict or reduce any rights the Purchaser may have to make a
     claim against the Covenantor under this deed in respect of any such Tax
     Liability as is mentioned in clause 2 (Covenant).

11.  DUE DATE OF PAYMENT

(A)  Where the Covenantor becomes liable to make any payment under clause 2
     (Covenant) in respect of a charge to stamp duty, the due date for the
     making of that payment shall be the date which is three days after the
     Covenantor has been sent a copy of the document, duly stamped, which has
     given rise to that liability and in addition to any amount so payable the
     Covenantor shall add to that amount six days' interest, calculated on a
     daily basis at the base rate from time to time of Midland Bank plc.

(B)  In any other case where the Covenantor becomes liable to make any payment
     under clause 2 (Covenant), the due date for the making of that payment
     shall be the date falling seven days after the date when the Covenantor has
     been served notice by the Purchaser that the Covenantor has a liability for
     a determinable amount under clause 2 (Covenant) or, if later:-


<PAGE>
                                       17


     (i)  in the case of an 'A' Tax Liability, the date three days before the
          last date on which the relevant Group Company would have had to pay
          the Tax that has given rise to the Covenantor's liability under this
          deed in order to avoid incurring a liability to interest or a charge
          or penalty in respect of that Tax Liability;

     (ii) in the case of a 'B' Tax Liability, the date on which the relevant
          repayment would have been made;

    (iii) in the case of a 'C' Tax Liability, the date on which the amount of
          Tax in question would have been payable but for the relevant
          utilisation of a Purchaser's Tax Relief;

     (iv) in the case of a 'D' Tax Liability, the date three days before the
          date on which the Tax in question becomes payable as a result of the
          loss of the relevant Purchaser's Tax Relief;

     (v)  in the case of an 'E' Tax Liability, the date three days before the
          date on which the relevant repayment is to be made,

     provided that, in the case of a 'B' Tax Liability, a 'C' Tax Liability, a
     'D' Tax Liability or an 'E' Tax Liability, the Purchaser must when serving
     notice also notify the Covenantor that the auditors for the time being of
     the relevant Group Company have certified that the Covenantor has that
     liability for a determinable amount.

(C)  If any payment required to be made by the Covenantor under this deed is not
     made by the due date for the making thereof, then, except to the extent
     that the Covenantor's liability under clause 2 (Covenant) compensates the
     Purchaser for the late payment by virtue of its extending to interest and
     penalties, that payment shall carry interest from that due date until the
     date when the payment is actually made at the rate of 2 per cent. above the
     base rate from time to time of Midland Bank plc, calculated on a daily
     basis.

12.  DEDUCTIONS FROM PAYMENTS, ETC.

(A)  All sums payable by the Covenantor to the Purchaser under this deed
     (including for the avoidance of doubt all related or consequential costs
     and expenses) shall be paid free and clear of all deductions or
     withholdings whatsoever, save only as may be required by law.

(B)  If any deductions or withholdings are required by law to be made from any
     of the sums payable as mentioned in sub-clause (A), the Covenantor shall be
     obliged to pay to the Purchaser such sum as will, after the deduction or
     withholding has been made, leave the Purchaser with the same amount as it
     would have been entitled to receive in the absence of any such requirement
     to make a deduction or withholding.


<PAGE>
                                       18


(C)  If any sum payable by the Covenantor to the Purchaser under this deed
     (other than interest under clause 11 (Due Date of Payment)) shall be
     subject to a Tax Liability in the hands of the Purchaser, the Covenantor
     shall be under the same obligation to make an increased payment in relation
     to that Tax Liability as if the liability were a deduction or withholding
     required by law.

13.  SURRENDER OF GROUP RELIEF

(A)  The Purchaser shall procure that Plessey shall surrender to the Covenantor
     or to such subsidiary or subsidiaries of the Covenantor as the Covenantor
     may specify all such Group Relief as the Covenantor may at its sole
     discretion direct in writing in respect of any accounting period of Plessey
     ended on or before Completion.

(B)  The Purchaser hereby undertakes that it shall, and shall procure that
     Plessey will, use all reasonable endeavours to procure that full effect is
     given to the surrenders to be made under sub-clause (A) and that such
     surrenders are allowed in full by the Inland Revenue and (without prejudice
     to the generality of the foregoing) the Purchaser shall procure that
     Plessey shall sign and submit to the Inland Revenue all such notices of
     consent to surrender (including provisional or protective notices of
     consent in cases where any relevant Tax computation has not yet been
     agreed) and all such other documents and returns as may be necessary to
     secure that full effect is given to this clause.

(C)  In consideration of each of the surrenders to be made under sub-clause (A),
     the Covenantor shall pay to Plessey in respect of the surrender in question
     or, as the case may be, shall procure that the relevant subsidiary or
     subsidiaries of the Covenantor shall pay to Plessey a sum equal to the
     amount of corporation tax from which the company that is the claimant
     company in respect of such surrender has been relieved by virtue of that
     surrender being validly and effectively made; PROVIDED THAT the provisions
     of this sub-clause shall not have effect if and to the extent that payment
     in respect of any such surrender has been made on the basis specified in
     the foregoing provisions of this sub-clause on or before the date of this
     deed.

(D)  Any sum payable under sub-clause (C) shall be paid on the date on which any
     corporation tax chargeable on the taxable profits of the company that is
     the claimant company in respect of the surrender in question for the
     accounting period of its to which that surrender relates becomes due and
     payable (or would have become due and payable had the claimant company
     incurred any liability to corporation tax in respect of that accounting
     period).

(E)  If any sum is paid in accordance with sub-clause (C), the Purchaser shall
     within three Business Days pay to the Covenantor an equivalent amount by
     way of addition to the consideration payable under the Agreement.


<PAGE>
                                       19


14.  COUNTER COVENANT

(A)  The Purchaser hereby covenants with the Covenantor to pay to the Covenantor
     an amount equal to any of the following:-

     (i)  any liability or increased liability to Tax of the Covenantor or any
          of its subsidiaries which arises as a result of or by reference to any
          reduction or disallowance of Group Relief that would otherwise have
          been available to the Covenantor or its relevant subsidiary or
          subsidiaries where and to the extent that such reduction or
          disallowance occurs as a result of or by reference to:-

          (a)  any total or partial withdrawal effected by a Group Company after
               Completion, of its own accord or at the Purchaser's behest, of
               any surrender of Group Relief that was submitted by that Group
               Company to the Inland Revenue on or before Completion in respect
               of any accounting period ended on or before Completion; or

          (b)  any total or partial disclaimer made by a Group Company after
               Completion, of its own accord or at the Purchaser's behest, of
               any capital allowances available to that Group Company in respect
               of any accounting period ended on or before Completion

          save where any such withdrawal or disclaimer is made at the express
          written request of the Covenantor;

     (ii) any liability or increased liability to Tax of the Covenantor or any
          of its subsidiaries:-

          (a)  which is caused by the failure of a Group Company to discharge a
               liability to Tax (a "Group Company Liability") which arises in
               respect of an accounting period beginning before Completion; or

          (b)  which is otherwise properly attributable to a Group Company (also
               a "Group Company Liability")

          other than (in either case) a Group Company Liability in respect of
          which the Purchaser could make a claim under clause 2 (Covenant); and

    (iii) any reasonable out-of-pocket legal and accounting costs and expenses
          reasonably and properly incurred by the Covenantor or any of its
          subsidiaries in connection with any such liability or increased
          liability to Tax (or Claim therefor) or in taking any action under
          this clause.

(B)  (i)  Upon the Covenantor becoming aware of a Claim relevant for the
          purposes of sub-clause (A), the Covenantor shall forthwith give
          written notice of that Claim to the Purchaser, and the Covenantor
          shall or, as the case may be, shall procure that the relevant
          subsidiary will (if the Purchaser shall indemnify the


<PAGE>
                                       20


          Covenantor and/or the relevant subsidiary to the Covenantor's
          reasonable satisfaction against all losses, costs, damages and
          expenses, including interest on overdue Tax, which may be incurred
          thereby) take such action and give such information and assistance in
          connection with the affairs of the Covenantor and/or the relevant
          subsidiary as the Purchaser may reasonably and promptly by written
          notice request to avoid, resist, appeal or compromise the Claim;
          PROVIDED THAT the Covenantor shall not be obliged to appeal against
          any Tax Assessment or to procure that any subsidiary appeals against
          any Tax Assessment if, the Purchaser having been given written notice
          of the receipt of that Tax Assessment in accordance with the preceding
          provisions of this sub-clause, the Covenantor or the relevant
          subsidiary has not within 21 days thereafter received instructions in
          writing from the Purchaser, in accordance with the preceding
          provisions of this sub-clause, to make that appeal.

     (ii) The actions which the Purchaser may reasonably request under paragraph
          (i) of this sub-clause shall include (without limitation) the
          Covenantor and/or the relevant subsidiary applying to postpone (so far
          as legally possible) the payment of any Tax and/or allowing the
          Purchaser to take on or take over at its own expense the conduct of
          all or any proceedings of whatsoever nature arising in connection with
          the Claim in question, and, if the Purchaser takes on or takes over
          the conduct of proceedings, the Covenantor shall provide and/or shall
          procure that the relevant subsidiary shall provide such information
          and assistance as the Purchaser may reasonably require in connection
          with the preparation for and conduct of those proceedings.

(C)  (i)  Where the Purchaser becomes liable to make any payment under
          sub-clause (A), the due date for the making of that payment shall be
          the date that is the last date on which the Covenantor or, as the case
          may be, the relevant subsidiary, would have had to have paid to the
          appropriate Tax Authority the Tax that has given rise to the
          Purchaser's liability under sub-clause (A) in order to avoid incurring
          a liability to interest or a charge or penalty in respect of that
          amount of Tax.

     (ii) If any payment required to be made by the Purchaser under sub-clause
          (A) is not made by the due date for the making thereof, then, except
          to the extent that the Purchaser's liability under sub-clause (A)
          compensates the Covenantor for the late payment by virtue of its
          extending to interest and penalties, that payment shall carry interest
          from that due date until the date when the payment is actually made at
          the rate of 2 per cent. above the base rate from time to time of
          National Westminster Bank plc.

(D)  (i)  All sums payable by the Purchaser to the Covenantor under this clause
          shall be paid free and clear of all deductions or withholdings
          whatsoever, save only as may be required by law.


<PAGE>
                                       21

     (ii) If any deductions or withholdings are required by law to be made from
          any of the sums payable as mentioned in paragraph (i) of this
          sub-clause, the Purchaser shall be obliged to pay to the Covenantor
          such sum as will, after the deduction or withholding has been made,
          leave the Covenantor with the same amount as it would have been
          entitled to receive in the absence of any such requirement to make a
          deduction or withholding.

    (iii) If any sum payable by the Purchaser to the Covenantor under this
          clause (other than interest under sub-clause (C)) shall be subject to
          a liability to Tax in the hands of the Covenantor, the Purchaser shall
          be under the same obligation to make an increased payment in relation
          to that liability to Tax as if the liability were a deduction or
          withholding required by law.

15.  DEEMED END OF ACCOUNTING PERIOD

For the purposes of any part of this deed other than clause 10 (Tax Returns),
the accounting period of each Group Company which began on 1st April, 1997 shall
be deemed to have ended at Completion.

16.  VAT

The Covenantor shall procure that an application is made to H.M. Customs &
Excise pursuant to section 43(5) VATA for the exclusion of each Group Company
from the VAT Group (if any) of which that Group Company is currently a member
and for that exclusion to take effect at the earliest date on or after
Completion as is permitted by law (the "Severance Date").

17.  REMEDIES AND WAIVERS

(A)  No delay or omission on the part of any party to this deed in exercising
     any right, power or remedy provided by law or under this deed or any other
     documents referred to in it shall:-

     (i)  impair such right, power or remedy; or

     (ii) operate as a waiver thereof.

(B)  The single or partial exercise of any right, power or remedy provided by
     law or under this deed shall not preclude any other or further exercise
     thereof or the exercise of any other right, power or remedy.

(C)  The rights, powers and remedies provided in this deed are cumulative and
     not exclusive of any rights, powers and remedies provided by law.

<PAGE>
                                       22

18.  ASSIGNMENT

(A)  This deed and the benefits and obligations under it and any part of it
     shall not be assignable except that the Purchaser may, upon giving written
     notice to the Covenantor, assign the benefit (but not the burden) of this
     deed to a member of the Purchaser's Group provided that

     (i)  any such assignee remains a member of the Purchaser's Group; and

     (ii) before such assignee ceases to be a member of the Purchaser's Group,
          the Purchaser will procure that the benefit of this deed is assigned
          to the Purchaser or (upon giving further written notice to the
          Covenantor) to another company within the Purchaser's Group (any such
          further assignment to be subject to the same conditions as above); and

    (iii) if the liability of the Covenantor shall be increased by reason of
          such assignment, the assignee shall be entitled to claim against the
          Covenantor only such amount as would equal the liability of the
          Covenantor had no assignment taken place.

(B)  This deed and the benefits and obligations under it and any part of it
     shall not be assignable by the Covenantor except that the Covenantor may,
     upon giving written notice to the Purchaser, assign the benefit (but not
     the burden) of this deed to a member of the Covenantor's Group provided
     that

     (i)  any such assignee remains a member of the Covenantor's Group; and

     (ii) before such assignee ceases to be a member of the Covenantor's Group,
          the Covenantor will procure that the benefit of this deed is assigned
          to the Covenantor or (upon giving further written notice to the
          Purchaser) to another company within the Covenantor's Group (any such
          further assignment to be subject to the same conditions as above); and

    (iii) if the liability of the Purchaser shall be increased by reason of
          such assignment the assignee shall be entitled to claim against the
          Covenantor only such amount as would equal the liability of the
          Covenantor had no assignment taken place.

(C)  Clause 2 (Covenant) shall cease to have effect for all purposes in relation
     to any Group Company upon that Group Company ceasing to be owned by a
     member of the Purchaser's Group.

(D)  For the purposes of this clause "Purchaser's Group" means the Purchaser and
     all its subsidiaries or subsidiary undertakings from time to time.


<PAGE>
                                       23

19.  FURTHER ASSURANCE

Each of the parties shall from time to time, on being required to do so by any
other party to this deed now or at any time in the future, execute or procure
the execution of all such documents in a form satisfactory to the party
concerned and except as provided elsewhere in, and subject to the terms of the
Agreement, each of the parties shall at its own expense do or, so far as it is
able, procure to be done, all such acts as the parties may, in each such case,
reasonably consider necessary for giving full effect to this deed and securing
to them the full benefit of the rights, powers and remedies conferred upon them
in this deed.

20.  NOTICES

(A)  Any notice or other communication given or made under or in connection with
     the matters contemplated by this deed shall, unless expressly stated
     otherwise, be in writing, other than writing on the screen of a visual
     display unit or other similar device which shall not be treated as writing
     for the purposes of this clause.

(B)  Any such notice or other communication shall be addressed as provided in
     sub-clause (C) and sent by personal delivery or by first class post
     PROVIDED THAT if, in accordance with the above provisions, any such notice
     or other communication is given or made outside Working Hours, such notice
     or other communication shall be deemed to be given or made at the start of
     Working Hours on the next Business Day.

(C)  The relevant addressee and address of each party for the purposes of this
     deed, subject to sub-clause (D), are:-

     Name of party           Addressee                  Address
     -------------           ---------                  -------

     The Covenantor          Company Secretary          1 Stanhope Gate,
                                                        London W1A 1EH

                                                        but from 1st March 1998,
                                                        1 Bruton Street,
                                                        London W1X 7AJ

     The Purchaser           Company Secretary          350 Legget Drive,
                                                        Kanata, Ontario,
                                                        Canada K2K 1X3

(D)  A party may notify the other party to this deed of a change to its name,
     relevant addressee or address for the purposes of sub-clause (C) PROVIDED
     THAT such notification shall only be effective on:-

     (i)  the date specified in the notification as the date on which the change
          is to take place; or

<PAGE>
                                       24

     (ii) if no date is specified or the date specified is less than five clear
          Business Days after the date on which notice is given, the date
          falling five clear Business Days after notice of any such change has
          been given.

21.  COUNTERPARTS

(A)  This deed may be executed in any number of counterparts, and by the parties
     on separate counterparts, but shall not be effective until each party has
     executed at least one counterpart.

(B)      Each counterpart shall constitute an original of this deed, but all the
         counterparts shall together constitute but one and the same instrument.

22.  TIME OF ESSENCE

Save as otherwise expressly provided, time is of the essence of each provision
of this deed.

23.  INVALIDITY

If at any time any provision of this deed is or becomes illegal, invalid or
unenforceable in any respect under the law of any jurisdiction, that shall not
affect or impair:-

(A)  the legality, validity or enforceability in that jurisdiction of any other
     provision of this deed; or

(B)  the legality, validity or enforceability under the law of any other
     jurisdiction of that or any other provision of this deed.

24.  GOVERNING LAW

This deed shall be governed by and construed in accordance with English law.

25.  JURISDICTION

Each party to this deed irrevocably agrees that any Proceedings against it may
be brought in the courts of England. Nothing contained in this clause shall
limit either party's rights to take Proceedings against the other in any other
court of competent jurisdiction, nor shall the taking of Proceedings in one or
more jurisdictions preclude the taking of Proceedings in any other jurisdiction,
whether concurrently or not, to the extent permitted by the law of such other
jurisdiction.

IN WITNESS WHEREOF this document has been executed and delivered as a deed the
day and year first before written.

<PAGE>



Signed as a deed by              )
THE GENERAL ELECTRIC             )        /s/ JOHN MAYO
COMPANY, p.l.c. acting by        )        ......................................
                                 )        Director
                                 )
and                              )        /s/ N. PORTER
                                          ......................................
                                          Director/Secretary


Signed as a deed by              )
MITEL TELECOM LIMITED            )        /s/ P. BUTCHER
acting by                        )        ......................................
                                 )        Director
                                 )
and                              )        /s/ A. JONES
                                          ......................................
                                          Director/Secretary





                            DATED 12th February 1998



                      THE GENERAL ELECTRIC COMPANY, P.L.C.





                                       and





                              MITEL TELECOM LIMITED



                       -----------------------------------

                               ENVIRONMENTAL DEED

                       -----------------------------------













                                Slaughter and May
                              35 Basinghall Street
                                 London EC2V 5DB
                                   (EFK/PDAD)

<PAGE>

                                    CONTENTS



                                                                            PAGE


1. INTERPRETATION                                                              1


2. COVENANT                                                                    5


3. LIMITATIONS ON LIABILITY AND PROCEDURAL MATTERS                             5


4. RELATIONSHIP WITH THE SALE AND PURCHASE AGREEMENT                           5


SCHEDULE                                                                       7


PART A : LIMITATIONS                                                           7


1. PRESUMPTION                                                                 7


2. TIME LIMIT FOR BRINGING CLAIM                                               7


3. TRIGGER CONDITION FOR BRINGING A CLAIM                                      8


4. MATTERS ARISING AFTER COMPLETION                                            8


5. FUTURE LAWS                                                                 9


6. LOSSES AND COST OF WORKS                                                    9


7. OTHER LIMITATIONS AND EXCLUSIONS                                           10


8. RELATIONSHIP WITH SCHEDULE 4 OF THE SALE AND PURCHASE AGREEMENT            10


PART B : PROCEDURE                                                            12


1. INVESTIGATIVE WORKS AND NOTIFICATION TO THIRD PARTIES                      12


2. NOTICE OF CLAIMS                                                           13


3. CONDUCT OF ACTIONS                                                         13


PART C : PROTECTED MATTERS                                                    17

<PAGE>


THIS DEED is made 12th February 1998

BETWEEN:-

1.   The GENERAL ELECTRIC COMPANY, P.L.C. of 1 Stanhope Gate, London, W1A 1EH
     (registered in England No. 67307) (the "Seller");

AND

2.   MITEL TELECOM LIMITED (registered in England and Wales No. 1309629), having
     its registered office at Portskewett, Gwent NP6 4YR (the "Purchaser")

NOW THIS DEED witnesses as follows:-

1.   Interpretation

1.1  In this deed:-

     "Action"                           means any Environmental Proceedings,
                                        Works or other site visits, meetings,
                                        negotiations, discussions or
                                        correspondence involving any Protected
                                        Person and relating to or affecting any
                                        Protected Matter which gives rise or may
                                        give rise to a claim under this deed or
                                        the Environmental Warranties;


     "Anticipated Development"          means construction of an extension to
                                        the buildings on a Current Property
                                        and/or the construction of new buildings
                                        on a Current Property up to an aggregate
                                        additional floor area no greater than
                                        20% of the aggregate floor area of the
                                        buildings on the Current Property as at
                                        the Completion Date, where such
                                        construction is a natural expansion of
                                        the business carried on at the Current
                                        Property as at the Completion Date;

     "Carholme Road Property"           means the building of approximately
                                        40,000 square feet at a site at Carholme
                                        Road, Lincoln occupied by Plessey more
                                        fully described in paragraph 17.1 of the
                                        Disclosure Letter;

     "Completion Date"                  means the date hereof;

<PAGE>

                                       2

     "Current Properties"               means those  properties  listed in Parts
                                        I(1) and (2),  II and III of  Schedule 8
                                        of the Sale and Purchase  Agreement  and
                                        "Current  Property"  means  any  one  of
                                        them;

     "Environmental Laws"               means any and all applicable laws in any
                                        relevant jurisdiction (including, for
                                        the avoidance of doubt, common law)
                                        (excluding (but without prejudice to the
                                        provisions of paragraph 7 of Part A of
                                        the Schedule) those laws relating
                                        specifically to town planning matters
                                        and to the health and safety of workers
                                        in the work place) and European
                                        Community or European Union regulations,
                                        directives and decisions, statutes,
                                        subordinate legislation (which for the
                                        avoidance of doubt (notwithstanding
                                        paragraph 5 of Part A of the Schedule)
                                        shall include Part IIA of the
                                        Environmental Protection Act 1990 and/or
                                        Sections 161A - D of the Water Resources
                                        Act 1991 (both as enacted by Section 57
                                        and paragraph 162 of Schedule 22
                                        respectively of the Environment Act
                                        1995) and the first set of guidance
                                        notes and regulations adopted under
                                        those provisions (but not subsequent
                                        modifications, amendments or
                                        re-enactments of those provisions or
                                        guidance notes or such regulations to
                                        the extent that those modifications,
                                        amendments or re-enactments would
                                        otherwise increase the liability of GEC
                                        under this deed) ("the New Contaminated
                                        Land Power")) which were, are, or which
                                        may become applicable to the conduct of
                                        the business of any Group Company or the
                                        use, occupation or ownership of the
                                        Current Properties or the Former
                                        Properties and which have as a purpose
                                        or effect the protection of, and/or the
                                        prevention of harm or damage to, the
                                        Environment and/or the provision of
                                        remedies in respect of harm or damage to
                                        the Environment;
<PAGE>

                                       3

     "Environment"                      any and all organisms (including without
                                        limitation man), ecosystems, property
                                        and the following media: air, (including
                                        without limitation, the air within
                                        buildings and the air within other
                                        natural or man-made structures whether
                                        above or below ground); water (including
                                        without limitation, water under or
                                        within land or in drains or sewers and
                                        coastal and inland waters); and land
                                        (including without limitation, land
                                        under water);

     "Environmental Authority"          means a  governmental  agency  or  other
                                        regulatory  body  with  jurisdiction  in
                                        relation to Protected Matters and acting
                                        under    and    in    accordance    with
                                        Environmental Laws;

     "Environmental Losses"             means Losses resulting directly from
                                        Protected Matters;

     "Environmental Proceedings"        means any criminal, civil, judicial,
                                        regulatory or administrative proceeding,
                                        suit, action or claim in relation to
                                        Protected Matters under Environmental
                                        Laws;

     "Environmental Warranties"         means the warranties in paragraph 22 of
                                        schedule 3 of the Sale and Purchase
                                        Agreement;

     "Former Properties"                means any property (including, without
                                        limitation, the Carholme Road Property
                                        and the Oldham Properties) used, owned
                                        or occupied at any time prior to
                                        Completion by any Group Company other
                                        than those properties listed in Parts
                                        I(1) and (2), II and III of Schedule 8
                                        of the Sale and Purchase Agreement

     "Investigative Works"              means inspections, investigations,
                                        assessments, audits, sampling or
                                        monitoring;

<PAGE>
                                       4


     "Losses"                           means all fines, penalties, damages
                                        (including liabilities to pay damages in
                                        respect of natural resource damage),
                                        liability to pay the costs of persons
                                        undertaking Environmental Proceedings
                                        against any Protected Person and
                                        reasonable costs and expenses
                                        (including, without limitation, the
                                        reasonable cost of professional advisers
                                        and the cost of Works);

     "New Contaminated Land Power"      has the meaning given in the definition
                                        of "Environmental Laws";

     "Oldham Properties"                means the property of Plessey being
                                        factory and offices at Lansdowne Road,
                                        Oldham, title to which is registered at
                                        H.M. Land Registry under title number
                                        GM175967 and the leasehold property used
                                        by Plessey as a car park at Stockfield
                                        Road, Oldham comprised in a lease dated
                                        29th January, 1988 between (1) The North
                                        Western Electricity Board and (2)
                                        Ferranti PLC;

     "Protected Matters"                means the matters referred to in Part C
                                        of the Schedule;

     "Protected Person"                 means the Purchaser and each and any
                                        member of the Purchaser's Group and the
                                        directors and employees of the
                                        Purchaser's Group from time to time;

     "Required Works"                   has the meaning given in paragraph 6(B)
                                        of Part A of the Schedule;

     "Sale and Purchase Agreement"      means an agreement dated the date hereof
                                        and made  between the Seller (1) and the
                                        Purchaser  (2) as amended,  supplemented
                                        or novated from time to time;

     "Third Party Claims"               means a claim which satisfies the
                                        Trigger Condition and is made by some
                                        person other than an Environmental
                                        Authority;

     "Trigger Condition"                has the meaning given in paragraph 3 of
                                        Part A of the Schedule;
 
<PAGE>

                                       5


     "Works"                            means:-

                                        (i)   Investigative Works; and

                                        (ii)  any works (including the
                                              installation, operation, repair or
                                              replacement of plant or equipment)
                                              in order to remove, remediate or
                                              contain any Protected Matter or to
                                              prevent a Protected Matter from
                                              arising.

1.2  Words and expressions which are defined in the Sale and Purchase Agreement
     shall have the same meaning when used in this deed.

2.   Covenant

     The Seller covenants with the Purchaser to pay to the Purchaser an amount
     equal to

          (i)  all Environmental Losses of any Protected Person except in
               relation to claims arising out of Anticipated Development or
               Third Party Claims; and

          (ii) fifty per cent. (50%) of all Environmental Losses of any
               Protected Person in relation to claims arising out of Anticipated
               Development or Third Party Claims,

     subject to clause 3 below.

3.   Limitations on liability and procedural matters

     The exclusions, limitations and other provisions set out in the Schedule
     shall apply (to the extent applicable) to any claim made by the Purchaser
     under this deed or the Environmental Warranties in relation to a Protected
     Matter.

4.   Relationship with the Sale and Purchase Agreement

4.1  Clause 1 (Interpretation), clauses 5.1(B) and 5.3(B) (GEC's Warranties and
     Undertakings), clauses 8.1 and 8.2 (in relation to the Current Properties
     only (and not in relation to the Former Properties)) (Purchaser's Remedies
     and GEC's Limitations on Liability), clause 11 (Remedies and Waivers),
     clause 12 (Assignment), clause 13 (Further Assurance), clause 14 (Entire
     Agreement), clause 15 (Notices), clause 18 (Costs and Expenses), clause 19
     (Counterparts), clause 21 (Effect of Completion), clause 22 (Invalidity),
     clause 23 (Governing Law) and clause 24 (Jurisdiction) shall apply to this
     deed mutatis mutandis.

<PAGE>
                                       6


4.2  In the event of any inconsistency between this deed and the Sale and
     Purchase Agreement, this deed shall prevail.

IN WITNESS whereof this document has been executed as a deed the day and year
first before written.


<PAGE>
                                       7


                                    SCHEDULE

                              PART A : LIMITATIONS

1.   Presumption

     The Seller and the Purchaser acknowledge that, in order to establish
     whether pollution or contamination in relation to the Current Properties
     gives rise to a claim under this deed or the Environmental Warranties, it
     will be necessary to establish whether such pollution or contamination was
     first caused or first arose before or after the Completion Date. The Seller
     and Purchaser therefore agree that:-

          (i)  if the relevant pollution or contamination is discovered by the
               Purchaser and is notified to the Seller before the second
               anniversary of the Completion Date, such pollution or
               contamination shall be presumed to have been first caused or to
               have first arisen on or before the Completion Date; and

          (ii) if the relevant pollution or contamination is discovered by the
               Purchaser and is notified to the Seller on or after the second
               anniversary of the Completion Date, such pollution or
               contamination shall be presumed to have been first caused or to
               have first arisen after the Completion Date,

     provided that the Seller and the Purchaser shall each be entitled to
     provide factual and expert evidence rebutting such presumptions.

2.   Time limit for bringing claim

     The  Purchaser  shall not be entitled to claim under this deed or under the
     Environmental  Warranties in respect of a Protected Matter unless a Trigger
     Condition has been  satisfied in respect of such  Protected  Matter and, in
     relation to a claim under this deed,  the Purchaser has given notice to the
     Seller of the claim as required  under  paragraph 2 of Part B below  before
     the seventh  anniversary of Completion,  provided that the liability of the
     Seller in respect of such claim under this deed shall absolutely  determine
     (if such claim has not been  satisfied,  settled,  or  withdrawn)  if legal
     proceedings  in respect of such claim shall not have been  commenced by the
     Purchaser  against the Seller  within 12 months of the service of notice by
     the Seller  requiring  commencement  of proceedings (a "Claim  Commencement
     Notice") and for this purpose  proceedings shall not be deemed to have been
     commenced  unless they shall have been properly  issued and validly  served
     upon the Seller,  further provided that the Seller shall not be entitled to
     serve a Claim  Commencement  Notice  unless  and  until  the date  when the
     relevant  facts in  relation  to such  claim  have been  determined  or can
     reasonably  be  predicted  or estimated on the basis of such Actions as may
     have occurred or been carried out in accordance with Part B below.

<PAGE>
                                       8


3.   Trigger Condition for bringing a claim

     The Purchaser shall not be entitled to claim under this deed or under the
     Environmental Warranties in relation to a Protected Matter unless
     Environmental Proceedings by an Environmental Authority or some other
     person who is not a Protected Person have occurred or been commenced or
     expressly threatened in writing against a Protected Person in relation to
     such Protected Matter (the "Trigger Condition"), provided that the Trigger
     Condition is not satisfied where the relevant Environmental Authority
     conducts Investigative Works in relation to the relevant Current Property
     or Former Property, but does not take any further action involving the
     relevant Protected Person as a result of those Investigative Works.

4.   Matters arising after Completion

     (A)  The Purchaser shall not be entitled to claim under this deed or under
          the Environmental Warranties in relation to a Protected Matter to the
          extent that the claim would not have arisen but for, results from or
          is increased by:-

          (i)  subject to paragraph 1 of this Schedule, any pollution or
               contamination first existing or arising after Completion;

          (ii) any act or omission by any Protected Person (except the Group,
               its directors or employees) before Completion or by any Protected
               Person after Completion which is unreasonable, reckless,
               negligent or not in the normal course of the Business as at
               Completion;

         (iii) any change of use of, or the development, demolition, closure or
               sale of or grant of any right or interest in relation to all or
               any part of any Current Property after Completion except for
               Anticipated Development;

          (iv) the renewal or early termination of any lease or other agreement
               or arrangement under which any Protected Person occupies or uses
               any Current Property other than any such which was in the
               contemplation of the Group at the Completion Date.

     (B)  The Purchaser shall only have an obligation to procure that each
          Protected Person shall so far as reasonable take Action to avoid,
          reduce and mitigate any claim under this deed or under the
          Environmental Warranties in relation to a Protected Matter to the
          extent that following notification of the Seller in accordance with
          paragraph 2 of Part B of the Schedule the Seller has indicated in
          writing to the Purchaser such Action as it may reasonably require and
          for the avoidance of doubt, any Losses

<PAGE>
                                       9


          of any Relevant Person incurred in any such Action shall be
          recoverable under this deed.

     (C)  The Purchaser shall not be entitled to claim under this deed or under
          the Environmental Warranties in relation to a Protected Matter to the
          extent that the claim would not have arisen but for, results from or
          is increased by any failure by the Purchaser or any Protected Person
          to comply with this deed.

5.   Future laws

     The Purchaser shall only be entitled to claim under this deed or under the
     Environmental Warranties in relation to a Protected Matter to the extent
     that the claim results from Environmental Laws which are in force and
     directly binding on the relevant Protected Person at or prior to the date
     of this deed and/or the New Contaminated Land Power. The Purchaser shall
     not be entitled to be paid under this deed or under the Environmental
     Warranties in relation to a Protected Matter to the extent that the claim
     would not have arisen but for, results from or is increased by laws which
     come into force after the date of this deed or changes in policy, guidance
     or practice by the relevant Environmental Authority after the date of this
     deed, except for (i) the coming into force of the New Contaminated Land
     Power and/or (ii) the coming into force of any future requirement of law
     under which any Protected Person becomes obliged to carry out Investigative
     Works or make any disclosure in relation to any Protected Matter (in which
     case this exception (ii) applies only to such obligation).

6.   Losses and cost of Works

     The Purchaser shall not be entitled to claim under this deed or under the
     Environmental Warranties in relation to a Protected Matter in respect of:-

     (A)  loss of profits, loss of sales, loss of production, business
          interruption, reduction in value of any asset or shares or any other
          indirect or consequential loss or damage arising out of a Protected
          Matter; or

     (B)  the cost of carrying out Works, except for the reasonable cost of the
          Works ("Required Works") which are the minimum necessary to comply
          with the final and lawful decision or settlement of Environmental
          Proceedings, provided that the cost of carrying out Works shall where
          practicable be those agreed in advance between the Seller and the
          Purchaser acting in good faith and where the Works are approved in
          advance by the Seller then the Works shall be Required Works and
          further provided that the cost of the Works shall be reasonable (and
          the Works shall be Required Works) where the Works achieve settlement
          of the Environmental Proceedings at a cost which equitably balances
          the Seller's concern to minimise its liability under this deed and the

<PAGE>
                                       10


          Purchaser's concern to minimise business interruption and any adverse
          effect upon any Protected Person. Unless it is manifestly unreasonable
          to do so, the cost of the Required Works shall be determined on the
          basis of the least expensive of binding quotes obtained from three
          reputable and independent contractors and such cost shall not be
          payable by the Seller in relation to any particular Required Works
          until such Required Works have been carried out.

7.   Other limitations and exclusions

     (A)  The Purchaser shall not be entitled to claim under this deed or under
          the Environmental Warranties in relation to a Protected Matter to the
          extent that the relevant claim results from or is increased by matters
          which relate to worker or occupational health and safety or town and
          country planning (except in relation to Anticipated Development)
          provided that where any requirement arises or may be imposed in
          relation to a Protected Matter under any provision of law relating to
          (i) worker or occupational health; or (ii) town and country planning
          in relation to Anticipated Development then this deed shall apply to
          it to the extent that that requirement could lawfully have been
          imposed under Environmental Laws and any Actions in relation thereto
          shall be covered by this deed and for the avoidance of doubt any cost
          attributable to the proper protection of workers during the carrying
          out any Works shall be covered by this deed.

     (B)  Where a claim arises out of Anticipated Development, the Losses which
          can be claimed under this deed or the Environmental Warranties shall
          not include any costs of the construction and related work which would
          have been incurred irrespective of the existence of the relevant
          Protected Matter.

8.   Relationship with Schedule 4 of the Sale and Purchase Agreement

     (A)  Paragraphs 1, 2.1, 3.1 (other than paragraph 3.1(A)(ii)), 3.4, 3.6,
          3.9 (but only in so far as it relates to the Current Properties (and
          not in relation to the Former Properties)), 3.10 and 3.12 of Schedule
          4 to the Sale and Purchase Agreement (Limitations on GEC's Liability
          under the Warranties) shall apply to claims under this deed.
          Paragraphs 2.2, 3.1(A)(ii), 3.2, 3.3, 3.5, 3.7, 3.8 and 3.11 of
          Schedule 4 to the Sale and Purchase Agreement (Limitations on GEC's
          Liability under the Warranties) shall not apply to claims under this
          deed.

     (B)  All of the paragraphs of Schedule 4 to the Sale and Purchase Agreement
          (Limitations on GEC's liability under the Warranties) shall apply to
          claims under the Environmental Warranties in relation to Protected
          Matters, except for paragraph 3.3.


<PAGE>
                                       11


     (C)  This deed and the Environmental Warranties contain the Purchaser's
          only rights to claim against the Seller in respect of Protected
          Matters. The Purchaser shall not be entitled to claim against the
          Seller under any of the Warranties (except for the Environmental
          Warranties) or any other provisions of the Sale and Purchase Agreement
          in respect of Protected Matters.

     (D)  The Purchaser (on behalf of itself and each Protected Person)
          irrevocably releases and discharges the Seller and each member of the
          Seller's Group from any claims or causes of action, known or unknown,
          whether based on statute or other law in relation to Protected Matters
          except for claims under this deed or the Environmental Warranties.


<PAGE>
                                       12


                               PART B : PROCEDURE

1.   Investigative Works and notification to third parties

     Until the seventh anniversary of the Completion Date and unless and/or
     until a Trigger Condition is satisfied in relation to a Protected Matter,
     the Purchaser shall not and shall procure that no Protected Person shall
     and shall use reasonable endeavours to procure that none of their
     respective partners, agents, contractors, sub-contractors or consultants
     shall:-

     (A)  carry out Investigative Works in relation to such Protected Matter
          without the prior written consent of the Seller; or

     (B)  disclose information to any Environmental Authority or any other
          person in relation to such Protected Matter without the prior written
          consent of the Seller,

     provided that the Seller's remedy in relation to any such Investigative
     Works or disclosure in breach of sub-paragraphs (A) and (B) above shall be
     that the Purchaser shall not be entitled to claim under this deed or the
     Environmental Warranties in relation to that Protected Matter to the extent
     that the relevant claim would not have arisen but for, results from or is
     increased by any such unauthorised Investigative Works or disclosure,
     provided that sub-paragraphs 1(A) and 1(B) above do not apply to the extent
     that (prior to any such Investigative Works or disclosure):-

          (i)  there is specific and objective factual evidence that a Protected
               Matter exists at the relevant Current Property which gives rise
               to an immediate and substantial risk to the Environment; and/or

          (ii) the relevant Investigative Works or disclosure are expressly and
               specifically required by Environmental Law (whether as it is now
               or in the future); and/or

         (iii) the Investigative Works and/or disclosure are a necessary part
               of any application by any Protected Person for the obtaining of
               any Permit for the continued conduct of the Business as at the
               Completion Date; and/or

          (iv) the Investigative Works and/or disclosure are a necessary part of
               any application by any Protected Person for town and country
               planning permission for Anticipated Development; and/or

          (v)  the Investigative Works and/or disclosure are required by
               contractual obligations which are in force and binding on any
               Protected Person at the Completion Date; and/or

<PAGE>
                                       13


          (vi) the Investigative Works and/or disclosure are required by any
               securities exchange or regulatory or governmental body to which
               any Protected Person is subject wherever situated, including
               (without limitation) the London Stock Exchange or the Panel on
               Takeovers and Mergers, whether or not the requirement for
               information has the force of law.

          The provisos (i)-(vi) to this paragraph 1 are conditional on (save in
          the case of an emergency) reasonable notice to the Seller and
          reasonable consultation with the Seller before the relevant
          Investigative Works are commenced or disclosure is made. For the
          avoidance of doubt, compliance with this paragraph 1 shall not be
          deemed to be an act or omission within paragraph 4(A)(ii) of Part A.

2.   Notice of claims

     The Purchaser shall provide prompt written notice to the Seller of any
     Protected Matter of which the Purchaser or any other Protected Person
     becomes aware which gives rise to or which may give rise to a claim under
     this deed or the Environmental Warranties and shall notify the Seller
     immediately upon a Trigger Condition being satisfied in relation to any
     such Protected Matter.

3.   Conduct of Actions

     (A)  The Seller shall have the right at any time to assume conduct of all
          or any part of any Action relating to or affecting any Protected
          Matter which gives rise to or may give rise to a claim under this deed
          or the Environmental Warranties. The Purchaser shall have conduct to
          the extent that the Seller does not assume conduct which for the
          avoidance of doubt shall be taken to be the case if the Seller shall
          not have within a reasonable time after the notification of a claim
          notified the Purchaser in writing of it having assumed conduct (and
          for the avoidance of doubt in any case, regardless of the
          circumstances, a reasonable time shall not exceed the period of three
          months, but may in appropriate circumstances be a shorter period).

     (B)  The Seller and the Purchaser shall promptly provide such reports,
          documents, correspondence, information, assistance and facilities
          relating to the relevant Protected Matter or Action as the other may
          reasonably require such party to provide (including, if required by
          the Seller, access to any Current Property or, so far as reasonably
          practicable, adjacent or affected Current Property or any Former
          Property).

     (C)  The person having conduct of any Action as provided for in
          sub-paragraph 3(A) above (the "Conduct Party") shall ensure that:-


<PAGE>
                                       14


          (i)  the other party shall be allowed a reasonable opportunity to
               review and approve any reports, documents, correspondence or
               information to be prepared and provided to the other persons or
               bodies administering or involved in such Action and no such
               reports, documents, correspondence or information shall be
               provided or disclosed (whether orally or in writing) to any third
               party unless required by law (whether as it is now or in the
               future) without the prior written approval of the other party,
               such approval not to be unreasonably withheld or delayed;

          (ii) the other party shall be provided with advance notice of and be
               allowed to attend and participate in any site visit, meeting,
               negotiation or discussion involving the Conduct Party (or any
               other Protected Person) and any other person or body relating to
               or affecting such Action and shall be provided promptly with full
               and accurate notes of such visit, meetings, negotiations or
               discussions which the other party does not attend and participate
               in;

         (iii) copies of all correspondence and documents passing between the
               persons or bodies administering or involved in such Action or in
               the possession of the Conduct Party (or any Protected Person)
               which relate to or affect such Action or the relevant Protected
               Matter shall be provided promptly to the other party;

          (iv) the other party shall be informed promptly of any material
               information which comes to the knowledge of the Conduct Party (or
               any Protected Person) and relates to or affects the relevant
               Protected Matter or Action;

          (v)  detailed reports shall be provided to the other party regarding
               the status and progress of such Action as frequently and in such
               form and detail as the other party shall reasonably require;

          (vi) all persons and bodies administering or involved in such Action
               shall attend and participate as the other party shall reasonably
               require, if the other party reasonably requests a site visit or
               other meeting on reasonable notice;

         (vii) no settlement or admission (including any failure to appeal or
               decision not to do so) shall be agreed, made or offered in any
               Action without the prior consent in writing of the other party,
               provided that such consent is not to be unreasonably withheld or
               delayed;

<PAGE>
                                       15


        (viii) the other party shall be provided with advance notice of any
               proposal by the Conduct Party (or any other Protected Person) or
               any third party to carry out any Works in relation to the Current
               Property which may reasonably be expected to affect the Protected
               Matter;

          (ix) the Conduct Party shall not (and no other Protected Person shall)
               carry out any Works which may reasonably be expected to affect
               the Protected Matter except for (a) Required Works and (b) any
               other Works to which the other party consents in writing, such
               consent not to be unreasonably withheld or delayed and such
               consent to be without prejudice to the exclusion in sub-paragraph
               6(B) of Part A of any liability for the cost of Works which are
               not Required Works;

          (x)  Works carried out by or on behalf of the Conduct Party or any
               Protected Person in relation to the Current Property shall be
               carried out using all reasonable skill and care and shall comply
               with the decision, settlement or requirement referred to in
               sub-paragraph 6(B) of Part A;

          (xi) the other party shall be allowed to attend and inspect the
               carrying out of Works in relation to the Current Property at any
               time whilst they are being carried out;

         (xii) any reasonable request of the other party in relation to any
               Action shall be complied with provided that, where the Seller is
               the Conduct Party and the request is made by the Purchaser as the
               other party, it does not increase the Seller's liability under
               this deed or the Environmental Warranties or any liability of any
               Protected Person whether or not it is covered by this deed or the
               Environmental Warranties;

        (xiii) allow the other party a reasonable opportunity to review and
               comment in advance upon written pleadings or other formal
               documents to be prepared and provided to a relevant court or
               other decision making body which administers the Environmental
               Proceedings; and

         (xiv) where Seller is the Conduct Party all reasonable efforts shall
               be made to avoid any adverse effect on the carrying on of the
               business of the Protected Person (including any adverse effect
               upon any Protected Person's relationship or dealings with any
               Environmental Authority) and (without limitation) in formulating
               and carrying out any Action Seller shall take all 

<PAGE>
                                       16


               reasonable steps to minimise the extent and duration of any
               disruption to the Protected Person's business by any Action.

     (D)  Each party shall comply with reasonable requests of the other for
          arrangements or procedures to maintain confidentiality or privilege in
          relation to the obligations of each party under sub-paragraphs 3(B)
          and 3(C).


<PAGE>
                                       17


                           PART C : PROTECTED MATTERS

1.   Subject to Part A, paragraph 1 of this Schedule pollution or contamination
     of soil, sub-strata, surface water, sub-surface water or groundwater at or
     from any of the Current Properties which was first caused or first arose
     prior to the Completion Date and, for the avoidance of doubt, excluding the
     existence or condition of any underground storage tanks, pipes or other
     building, plant, machinery or structure above or below ground except to the
     extent that they have given rise prior to the Completion Date to such
     pollution or contamination.

2.   Pollution or contamination of the Environment which was first caused or
     first arose prior to the Completion Date at or from any Former Property.

3.   Any liability relating to or arising from any other breach of Environmental
     Law or Permit by any member of the Group prior to the Completion Date at
     any Former Property.


SIGNED as a deed by       )
The General Electric      )
Company, p.l.c. acting    )
by:                       )

/s/ JOHN MAYO
 .........................................
Director

/s/ N. PORTER
 .........................................
Director/Secretary



SIGNED as a deed by       )
Mitel Telecom Limited     )
acting by:                )

/s/ P. BUTCHER
 .........................................
Director

/s/ A. JONES
 .........................................
Director/Secretary



                                                                       EXECUTION

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



                                CREDIT AGREEMENT


                          DATED AS OF FEBRUARY 12, 1998


                                      AMONG


                               MITEL CORPORATION,
                                  as Borrower,

                           THE LENDERS LISTED HEREIN,
                                   as Lenders,

                       GOLDMAN SACHS CREDIT PARTNERS L.P.,
                   as Advisor, Arranger and Syndication Agent,


                                       and

                       CANADIAN IMPERIAL BANK OF COMMERCE,
                             as Administrative Agent



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



<PAGE>

                                MITEL CORPORATION

                                CREDIT AGREEMENT

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                    Page
                                                                                                    ----

<C>     <S>                                                                                         <C>
                                   SECTION 1.
                                  DEFINITIONS......................................................  2
1.1     Certain Defined Terms......................................................................  2
1.2     Accounting Terms; Utilization of GAAP for Purposes of Calculations
        Under Agreement............................................................................ 39
1.3     Other Definitional Provisions and Rules of Construction.................................... 39

                                   SECTION 2.
                      AMOUNTS AND TERMS OF COMMITMENTS AND LOANS................................... 40
2.1     Commitments; Making of Loans; the Register; Optional Notes................................. 40
2.2     Interest on the Loans...................................................................... 48
2.3     Fees....................................................................................... 53
2.4     Repayments, Prepayments and Reductions in Revolving Loan
        Commitments; General Provisions Regarding Payments; Application
        of Proceeds of Collateral and Payments Under Guaranties.................................... 53
2.5     Use of Proceeds............................................................................ 66
2.6     Special Provisions Governing Eurodollar Rate Loans......................................... 67
2.7     Increased Costs; Taxes; Capital Adequacy................................................... 70
2.8     Obligation of Lenders and Issuing Lenders to Mitigate...................................... 72
2.9     Defaulting Lenders......................................................................... 73
2.10    Removal or Replacement of a Lender......................................................... 75
2.11    Certain Provisions Regarding Determination of Dollar Equivalent............................ 76

                                   SECTION 3.
                               LETTERS OF CREDIT................................................... 77
3.1     Issuance of Letters of Credit and Lenders' Purchase of Participations
        Therein.................................................................................... 77
3.2     Letter of Credit Fees...................................................................... 80
3.3     Drawings and Reimbursement of Amounts Paid Under Letters of
        Credit..................................................................................... 81
3.4     Obligations Absolute....................................................................... 85
3.5     Indemnification; Nature of Issuing Lenders' Duties......................................... 86
3.6     Increased Costs and Taxes Relating to Letters of Credit.................................... 87
3.7     Existing Letters of Credit................................................................. 88

                                   SECTION 4.
                   CONDITIONS TO LOANS AND LETTERS OF CREDIT....................................... 88
4.1     Conditions to Term Loans and Initial Revolving Loans and Swing
        Line Loans................................................................................. 88
4.2     Conditions to All Loans....................................................................100
4.3     Conditions to Letters of Credit............................................................101

</TABLE>

                                       (i)

<PAGE>

<TABLE>
<CAPTION>
                                                                                                   Page
                                                                                                   ----
<C>     <S>                                                                                         <C>
                                         SECTION 5.
                          COMPANY'S REPRESENTATIONS AND WARRANTIES.................................102
5.1     Organization, Powers, Qualification, Good Standing, Business and
        Subsidiaries...............................................................................102
5.2     Authorization of Borrowing, etc............................................................103
5.3     Financial Condition........................................................................104
5.4     No Material Adverse Change; No Restricted Junior Payments..................................105
5.5     Title to Properties; Liens; Real Property..................................................105
5.6     Litigation; Adverse Facts..................................................................106
5.7     Payment of Taxes...........................................................................106
5.8     Performance of Agreements; Materially Adverse Agreements;
        Material Contracts.........................................................................107
5.9     Governmental Regulation....................................................................107
5.10    Securities Activities......................................................................107
5.11    Employee Benefit Plans.....................................................................108
5.12    Certain Fees...............................................................................109
5.13    Environmental Protection...................................................................109
5.14    Employee Matters...........................................................................110
5.15    Solvency...................................................................................110
5.16    Matters Relating to Collateral.............................................................110
5.17    Related Agreements.........................................................................112
5.18    Employment and Labor Agreements............................................................113
5.19    Disclosure.................................................................................113
5.20    Subsidiary Guarantors......................................................................113

                                         SECTION 6.
                               COMPANY'S AFFIRMATIVE COVENANTS.....................................114
6.1     Financial Statements and Other Reports.....................................................114
6.2     Corporate Existence, etc...................................................................121
6.3     Payment of Taxes and Claims; Tax Consolidation.............................................121
6.4     Maintenance of Properties; Insurance; Application of Net
        Insurance/Condemnation Proceeds............................................................122
6.5     Inspection Rights; Lender Meeting..........................................................124
6.6     Compliance with Laws, etc..................................................................125
6.7     Environmental Review and Investigation, Disclosure, Etc.;
        Company's Actions Regarding Hazardous Materials Activities,
        Environmental Claims and Violations of Environmental Laws..................................125
6.8     Execution of Guaranties and Personal Property Collateral Documents
        by Certain Subsidiaries and Future Subsidiaries............................................128
6.9     Conforming Leasehold Interests; Matters Relating to Additional Real
        Property Collateral........................................................................129
6.10    Certain Post-Closing Matters...............................................................133
6.11    Interest Rate Protection...................................................................134

                                         SECTION 7.
                                COMPANY'S NEGATIVE COVENANTS.......................................134
7.1     Indebtedness...............................................................................134
7.2     Liens and Related Matters..................................................................135
7.3     Investments; Joint Ventures................................................................137
7.4     Contingent Obligations.....................................................................137
</TABLE>

                                      (ii)

<PAGE>

<TABLE>
<CAPTION>
                                                                                                  Page
                                                                                                  ----

<C>     <S>                                                                                         <C>
7.5     Restricted Junior Payments.................................................................139
7.6     Financial Covenants........................................................................139
7.7     Restriction on Fundamental Changes; Asset Sales and Acquisitions...........................143
7.8     Consolidated Capital Expenditures..........................................................145
7.9     Restriction on Operating Leases............................................................146
7.10    Sales and Lease-Backs......................................................................146
7.11    Sale or Discount of Receivables............................................................146
7.12    Transactions with Shareholders and Affiliates..............................................147
7.13    Disposal of Subsidiary Stock...............................................................147
7.14    Conduct of Business........................................................................147
7.15    Amendments or Waivers of Related Agreements; Amendments of
        Documents Relating to Subordinated Indebtedness............................................147
7.16    Fiscal Year................................................................................148

                                         SECTION 8.
                                     EVENTS OF DEFAULT.............................................148
8.1     Failure to Make Payments When Due..........................................................148
8.2     Default in Other Agreements................................................................148
8.3     Breach of Certain Covenants................................................................149
8.4     Breach of Warranty.........................................................................149
8.5     Other Defaults Under Loan Documents........................................................149
8.6     Involuntary Bankruptcy; Appointment of Receiver, etc.......................................149
8.7     Voluntary Bankruptcy; Appointment of Receiver, etc.........................................150
8.8     Judgments and Attachments..................................................................150
8.9     Dissolution................................................................................151
8.10    Employee Benefit Plans.....................................................................151
8.11    Material Adverse Effect....................................................................151
8.12    Change in Control..........................................................................151
8.13    Invalidity of Guaranties; Failure of Security; Repudiation of
        Obligations................................................................................152
8.14    Failure to Consummate Acquisition..........................................................152

                                         SECTION 9.
                                           AGENTS..................................................154
9.1     Appointment................................................................................154
9.2     Powers and Duties; General Immunity........................................................156
9.3     Representations and Warranties; No Responsibility For Appraisal of
        Creditworthiness...........................................................................157
9.4     Right to Indemnity.........................................................................158
9.5     Successor Agent............................................................................158
9.6     Collateral Documents and Guaranties........................................................159

                                         SECTION 10.
                                        MISCELLANEOUS..............................................160
10.1    Assignments and Participations in Loans and Letters of Credit..............................160
10.2    Expenses...................................................................................164
10.3    Indemnity..................................................................................165
10.4    Set-Off; Security Interest in Deposit Accounts.............................................166
10.5    Ratable Sharing............................................................................166
</TABLE>

                                      (iii)

<PAGE>

<TABLE>
<CAPTION>
                                                                                                  Page
                                                                                                  ----

<C>     <S>                                                                                        <C>
10.6    Amendments and Waivers.....................................................................167
10.7    Independence of Covenants..................................................................168
10.8    Notices....................................................................................168
10.9    Survival of Representations, Warranties and Agreements.....................................169
10.10   Failure or Indulgence Not Waiver; Remedies Cumulative......................................169
10.11   Marshalling; Payments Set Aside............................................................169
10.12   Severability...............................................................................170
10.13   Obligations Several; Independent Nature of Lenders' Rights.................................170
10.14   Headings...................................................................................170
10.15   Applicable Law.............................................................................170
10.16   Successors and Assigns.....................................................................171
10.17   Consent to Jurisdiction and Service of Process.............................................171
10.18   Waiver of Jury Trial.......................................................................172
10.19   Confidentiality............................................................................172
10.20   Judgment Currency..........................................................................173
10.21   Counterparts; Effectiveness................................................................173
10.22   Supremacy of Credit Agreement..............................................................174

        Signature pages .......................................................................    S-1
</TABLE>

                                      (iv)

<PAGE>

                                    EXHIBITS


I           FORM OF NOTICE OF BORROWING
II          FORM OF NOTICE OF CONVERSION/CONTINUATION
III         FORM OF REQUEST FOR ISSUANCE OF LETTER OF CREDIT
IV          FORM OF TRANCHE A TERM NOTE
V           FORM OF AXEL SERIES B NOTE
VI-A        FORM OF REVOLVING NOTE
VI-B        FORM OF SWING LINE NOTE
VII         FORM OF COMPLIANCE CERTIFICATE
VIII-A      FORM OF OPINION OF RUBIN BAUM LEVIN CONSTANT &
            FRIEDMAN
VIII-B      FORM OF OPINION OF MCCARTHY TETRAULT
VIII-C      FORM OF OPINION OF MORGAN BRUCE
VIII-D      FORM OF OPINION OF LAGERLOF & LEMAN
VIII-E      FORM OF OPINION OF LANG MICHENER
VIII-F      FORM OF OPINION OF NIGEL BENNET
VIII-G      FORM OF OPINION OF DONALD G. MCINTYRE
VIII-H      FORM OF OPINION OF EDWARD J. SILBERHORN
IX          FORM OF OPINION OF O'MELVENY & MYERS LLP
X           FORM OF ASSIGNMENT AGREEMENT
XI          FORM OF AUDITOR'S LETTER
XII         FORM OF FINANCIAL CONDITION CERTIFICATE
XIII        FORM OF COMPANY SECURITY AGREEMENT (CANADA)
XIV         FORM OF DEMAND DEBENTURE (CANADA)
XV          FORM OF DEBENTURE PLEDGE AGREEMENT (CANADA)
XVI         FORM OF DEED OF HYPOTHEC (QUEBEC)
XVII        FORM OF COMPANY MASTER PLEDGE AGREEMENT
XVIII       FORM OF COMPANY PATENT AND TRADEMARK SECURITY
            AGREEMENT (U.S.)
XIX         FORM OF SUBSIDIARY GUARANTY
XX          FORM OF SUBSIDIARY PLEDGE AGREEMENT (U.S.)
XXI         FORM OF SUBSIDIARY SECURITY AGREEMENT (U.S.)
XXII        FORM OF SUBSIDIARY PATENT AND TRADEMARK SECURITY
            AGREEMENT (U.S.)
XXIII       FORM OF MORTGAGE (U.S.)
XXIV        FORM OF GUARANTEE AND DEBENTURE (U.K.)
XXV         FORM OF COMPANY PLEDGE AGREEMENT (U.K.)
XXVI        FORM OF COMPANY PLEDGE AGREEMENT (SWEDEN)
XXVII       FORM OF SUBSIDIARY SECURITY AGREEMENT (SWEDEN)
XXVIII      FORM OF COMPANY SECURITY AGREEMENT (U.S.)
XXIX        FORM OF COPYRIGHT SECURITY AGREEMENT (U.S.)

                                      (v)

<PAGE>

                                    SCHEDULES

1.1A        EXISTING LETTERS OF CREDIT
2.1         LENDERS' COMMITMENTS AND PRO RATA SHARES
4.1C        CORPORATE AND CAPITAL STRUCTURE; OWNERSHIP;
            MANAGEMENT
4.1H        CLOSING DATE MORTGAGED PROPERTIES
4.1K        CLOSING DATE ENVIRONMENTAL REPORTS
4.1L        PLESSEY ENTITIES FINANCIAL STATEMENTS
5.1         SUBSIDIARIES OF COMPANY
5.5         REAL PROPERTY
5.6         LITIGATION
5.8         MATERIAL CONTRACTS
5.11        CERTAIN EMPLOYEE BENEFIT PLANS
5.13        ENVIRONMENTAL MATTERS
5.16        INTELLECTUAL PROPERTY AND OTHER COLLATERAL MATTERS
5.18        EMPLOYMENT AGREEMENTS
7.1         CERTAIN EXISTING INDEBTEDNESS
7.2         CERTAIN EXISTING LIENS
7.3         CERTAIN EXISTING INVESTMENTS
7.4         CERTAIN EXISTING CONTINGENT OBLIGATIONS


                                      (vi)

<PAGE>


                                MITEL CORPORATION

                                CREDIT AGREEMENT

     This CREDIT  AGREEMENT is dated as of February 12, 1998 and entered into by
and among MITEL  CORPORATION,  a corporation  organized under the laws of Canada
("Company"),  GOLDMAN SACHS CREDIT PARTNERS L.P. ("GSCP"), as advisor,  arranger
and syndication  agent (in such capacity,  "Syndication  Agent"),  THE FINANCIAL
INSTITUTIONS LISTED ON THE SIGNATURE PAGES HEREOF (each individually referred to
herein as a "Lender" and collectively as "Lenders"),  and CANADIAN IMPERIAL BANK
OF COMMERCE  ("CIBC"),  as agent for Lenders (in such capacity,  "Administrative
Agent").

                                 R E C I T A L S

     WHEREAS,  on or before the Closing Date (this and other  capitalized  terms
used in these recitals  without  definition  being used as defined in subsection
1.1)  Company  and/or  certain  of its  Subsidiaries  will  purchase  all of the
outstanding  capital stock of the Plessey  Entities  pursuant to the Acquisition
Agreement;

     WHEREAS,  Lenders  have  agreed  to extend  certain  credit  facilities  to
Company,  the  proceeds  of  which  will be used  (i) to  fund  the  Acquisition
Financing  Requirements,  and (ii) to provide  financing for working capital and
other general corporate purposes of Company and its Subsidiaries;

     WHEREAS,  Company  desires to secure all of the  Obligations  hereunder and
under the other Loan Documents by granting to Administrative Agent, on behalf of
Lenders, a first priority Lien on substantially all of its personal property and
certain of its real property,  including a pledge of all of the capital stock of
each of its Subsidiaries; and

     WHEREAS,  Company and certain of its Subsidiaries  have agreed to guarantee
the Obligations hereunder and under the other Loan Documents and to secure their
guaranties by granting to  Administrative  Agent, on behalf of Lenders,  a first
priority Lien on  substantially  all of their respective  personal  property and
certain of their  respective  real  property,  including  a pledge of all of the
capital stock of certain of their respective Subsidiaries:

     NOW,  THEREFORE,  in  consideration  of the  premises  and the  agreements,
provisions and covenants herein contained,  Company, Lenders and Agents agree as
follows:

                                        1

<PAGE>

                                   SECTION 1.
                                   DEFINITIONS

1.1  Certain Defined Terms.

     The  following  terms  used in this  Agreement  shall  have  the  following
meanings:

     "Acquisition"  means  the  transactions  contemplated  by  the  Acquisition
Agreement.

     "Acquisition Agreement" means collectively, (i) that certain Share Sale and
Purchase  Agreement  dated February 12, 1998 by and among Seller,  Mitel Telecom
and Company, as guarantor,  and the Oldham Agreements (as defined therein), (ii)
that  certain  Disclosure  Letter  dated  February  12,  1998 by Seller to Mitel
Telecom,  and (iii) that  certain Tax Covenant (as defined in the Share Sale and
Purchase  Agreement  set  forth in  clause  (i)  above)  and (iv)  that  certain
Environmental Deed dated February 12, 1998 between Seller and Mitel Telecom,  in
each case in the form delivered to Administrative  Agent,  Syndication Agent and
Lenders prior to their execution of this Agreement and as such agreements may be
amended from time to time thereafter to the extent  permitted  under  subsection
7.15A.

     "Acquisition  Financing  Requirements"  means the  aggregate of all amounts
necessary  (i) to finance the  purchase  price  payable in  connection  with the
Acquisition,  (ii) to  refinance  certain  Indebtedness  outstanding  under  the
Existing Credit Agreements, and (iii) to pay Transaction Costs.

     "Adjusted  Eurodollar Rate" means, for any Interest Rate Determination Date
with respect to an Interest Period for a Eurodollar Rate Loan, the interest rate
per annum (rounded upward, if necessary,  to the nearest 1/16 of one percent) as
determined on the basis of the offered rates for deposits in U.S. dollars, for a
period of time  comparable to such Interest Period which appears on the Telerate
Page 3750 as of 11:00 a.m.  (New York time) two  Business  Days before the first
day of such Interest Period; provided, however, that if the rate described above
does  not  appear  on the  Telerate  System  on  any  applicable  Interest  Rate
Determination  Date,  the Adjusted  Eurodollar  Rate shall be the rate  (rounded
upward as  described  above,  if necessary  for  deposits in U.S.  dollars for a
period  substantially equal to the interest period on the Reuters Page "LIBO" or
such other page as may replace the LIBO page on that  service for the purpose of
displaying such rates),  as of 11:00 a.m. (London time) two Business Days before
the first day of such Interest Period.

     If both the Telerate and Reuters system are unavailable,  then the rate for
that date will be  determined  on the basis of the offered rates for deposits in
U.S.  dollars for a period of time  comparable to such Interest Period which are
offered by four  major  banks in the London  interbank  market at  approximately
11:00  a.m.  (New York  time) two  Business  Days  before  the first day of such
Interest Period as selected by the  Administrative  Agent.  The principal London
office of each of the four major  London  banks will be  requested  to provide a
quotation  of its  U.S.  dollar  deposit  offered  rate.  If at  least  two such
quotations are provided,  the rate for that date will be the arithmetic  mean of
the quotations. If fewer than two quotations are provided as requested, the rate
for the date will be  determined  on the basis of the rates  quoted for loans in
U.S.  dollars to leading  European banks for a period of time comparable to such
Interest Period offered by major banks in New York City at  approximately  11:00
a.m.  (New York time) two  Business  Days before the first day of such

                                        2

<PAGE>

Interest Period. In the event that Administrative  Agent is unable to obtain any
such quotation as provided above, it will be deemed that the Adjusted Eurodollar
Rate for such Interest Rate cannot be determined.

     In the event that the Board of  Governors  of the  Federal  Reserve  System
shall impose a Eurodollar  Rate Reserve  Percentage with respect to Eurocurrency
Liabilities,  the Adjusted Eurodollar Rate for an Interest Period shall be equal
to the amount  determined above for such Interest Period divided by a percentage
equal to 100% minus the  Eurodollar  Rate Reserve  Percentage  for such Interest
Period.

     "Administrative  Agent"  has  the  meaning  assigned  to  that  term in the
introduction  to this  Agreement  and also  means  and  includes  any  successor
Administrative Agent appointed pursuant to subsection 9.5A.

     "Affected Lender" has the meaning assigned to that term in subsection 2.6C.

     "Affiliate",  as applied to any Person,  means any other Person directly or
indirectly  controlling,  controlled  by, or under  common  control  with,  that
Person.  For  the  purposes  of  this  definition,  "control"  (including,  with
correlative meanings, the terms "controlling", "controlled by" and "under common
control  with"),  as applied to any Person,  means the  possession,  directly or
indirectly,  of the power to direct or cause the direction of the management and
policies of that Person,  whether through the ownership of voting  securities or
by contract or otherwise.

     "Agent" means,  individually,  each of Syndication Agent and Administrative
Agent,  and  "Agents"  means   Syndication  Agent  and   Administrative   Agent,
collectively.

     "Agreement"  means this Credit  Agreement dated as of February 12, 1998, as
it may be amended, supplemented or otherwise modified from time to time.

                 "Applicable  Leverage Ratio" means, with respect to any date of
determination,  the  Consolidated  Leverage  Ratio  set  forth  in  the  Pricing
Certificate  (as  defined  below) in effect for the  Pricing  Period (as defined
below)  in  which  such  date of  determination  occurs.  For  purposes  of this
definition,  (i) "Pricing Certificate" means an Officer's Certificate of Company
certifying  as to the  Consolidated  Leverage  Ratio  as of the  last day of any
Fiscal Quarter and setting forth the calculation of such  Consolidated  Leverage
Ratio in reasonable  detail,  which  Officer's  Certificate  may be delivered to
Administrative  Agent at any time on or after the date of delivery by Company of
the Compliance  Certificate (the "Related Compliance  Certificate") with respect
to the  period  ending  on the  last  day of such  Fiscal  Quarter  pursuant  to
subsection  6.1(iv),  and (ii) "Pricing Period" means each period  commencing on
the first Business Day after the delivery to  Administrative  Agent of a Pricing
Certificate  and  ending  on the  first  Business  Day  after  the next  Pricing
Certificate  is delivered  to  Administrative  Agent;  provided  that,  anything
contained  in this  definition  to the contrary  notwithstanding,  (a) the first
Pricing Period for purposes of calculating  the Applicable  Leverage Ratio shall
commence no earlier  than the date which is six months  after the Closing  Date,
and the  Pricing  Certificate  in respect of such  first  Pricing  Period may be
delivered  at any time on or after  such  six-month  anniversary  date and shall
relate  to  the  most  recent  financial  statements  delivered  by  Company  to
Administrative  Agent  prior to such date  pursuant  to  subsection  6.1(ii)  or
6.1(iii), (b) the Applicable Leverage Ratio for the period from the Closing Date
to but excluding the date of  commencement of such first Pricing Period shall be
deemed to be 1.50:1.00 for purposes of making the relevant  calculation referred
to

                                       3

<PAGE>

above,  and (c) in the event that,  after the commencement of such first Pricing
Period,  (X) Company fails to deliver a Pricing  Certificate  to  Administrative
Agent setting forth the  Consolidated  Leverage  Ratio as of the last day of any
Fiscal Quarter on or before the last day on which Company is required to deliver
the Related  Compliance  Certificate (such last day being the "Cutoff Date") and
(Y)  Administrative  Agent determines (each such  determination  being an "Agent
Determination")  on or  after  the  Cutoff  Date (on the  basis  of the  Related
Compliance Certificate or a Pricing Certificate delivered after the Cutoff Date)
that the Applicable Leverage Ratio that would have been in effect if Company had
delivered  a  Pricing  Certificate  on the  Cutoff  Date  is  greater  than  the
Consolidated  Leverage  Ratio set forth in the most recent  Pricing  Certificate
actually delivered by Company,  then (1) the Applicable Leverage Ratio in effect
for purposes of making the relevant calculation referred to above for the period
from the Cutoff  Date to the date of  delivery  by  Company of the next  Pricing
Certificate  (or, if earlier,  the next date on which an Agent  Determination is
made) shall be the Consolidated  Leverage Ratio determined pursuant to the Agent
Determination  and (2) on the  first  Business  Day after  Administrative  Agent
delivers written notice to Company of any Agent Determination, Company shall pay
to  Administrative  Agent,  for  distribution  (as  appropriate) to Lenders,  an
aggregate  amount  equal to the  additional  interest  and letter of credit fees
Company  would have been  required  to pay in respect of all  applicable  Loans,
Letters of Credit or  Commitments  in respect of which any interest or fees have
been paid by Company  during the  period  from the Cutoff  Date to the date such
notice  is given  by  Administrative  Agent to  Company  if the  amount  of such
interest and fees had been calculated using the Applicable  Leverage Ratio based
on such Agent Determination.

     "Applicable  Base Rate  Margin"  means (a) for the period  from the Closing
Date up to (but excluding) the date of commencement of the first Pricing Period,
1.00% per annum for Tranche A Term Loans, 1.25% per annum for AXELs Series B and
1.00% per annum for Revolving Loans, and (b) for any date thereafter, a rate per
annum equal to the percentage  set forth below opposite the Applicable  Leverage
Ratio  in  effect  as of such  date of  determination,  any  change  in any such
Applicable  Base Rate Margin to be  effective  on the date of any  corresponding
change in the Applicable Leverage Ratio.

================================================================================
                              Applicable Base Rate         Applicable Base Rate
      Applicable               Margin for Tranche            Margin for AXELs
    Leverage Ratio                A Term Loans                   Series B
================================================================================
greater than or equal                 1.00%                        1.25%
    to 1.50:1.00
- --------------------------------------------------------------------------------
 less than 1.50:1.00                  .75%                         1.25%
 but greater than or
  equal to 1.00:1.00
- --------------------------------------------------------------------------------
 less than 1.00:1.00                  .50%                         1.00%
================================================================================

     "Applicable  Eurodollar  Rate  Margin"  means (a) for the  period  from the
Closing Date up to (but excluding) the date of commencement of the first Pricing
Period,  2.00%  per annum for  Tranche A Term  Loans,  2.25% per annum for AXELs
Series  B and  2.00%  per  annum  for  Revolving  Loans,  and (b)  for any  date
thereafter,  a rate per annum equal to the  percentage  set forth below opposite
the Applicable  Leverage Ratio in effect as of such date of  determination,  any
change in any such Applicable Eurodollar Rate Margin to be effective on the date
of any corresponding change in the Applicable Leverage Ratio.

                                       4

<PAGE>

================================================================================
                          Applicable Eurodollar Rate      Applicable Eurodollar
      Applicable             Margin for Tranche A            Rate Margin for
    Leverage Ratio                Term Loans                 AXELs Series B
================================================================================
greater than or equal               2.00%                         2.25%
     to 1.50:1.00
- --------------------------------------------------------------------------------
 less than 1.50:1.00                1.75%                         2.25%
 but greater than or
  equal to 1.00:1.00
- --------------------------------------------------------------------------------
 less than 1.00:1.00                1.50%                         2.00%
================================================================================

     "Asset  Sale" means the sale by Company or any of its  Subsidiaries  to any
Person other than Company or any of its wholly-owned  Subsidiaries of (i) any of
the stock of any of Company's Subsidiaries, (ii) substantially all of the assets
of any  division or line of business of Company or any of its  Subsidiaries,  or
(iii) any other assets (whether tangible or intangible) of Company or any of its
Subsidiaries  (other than (a) inventory sold in the ordinary course of business,
(b) any sale of assets in  connection  with  sales and  lease-back  transactions
expressly  permitted  pursuant to subsection 7.10, and (c) any such other assets
to the  extent  that the  aggregate  value  of such  assets  sold in any  single
transaction or related series of transactions is equal to $2,500,000 or less).

     "Assignment  Agreement" means an Assignment  Agreement in substantially the
form of Exhibit X annexed hereto.

     "Auditor's Letter" means a letter,  substantially in the form of Exhibit XI
annexed  hereto,  acknowledged  and agreed to by  Company  and Ernst & Young and
delivered to Administrative Agent pursuant to subsection 4.1T.

     "AXEL(sm)*  Series B" means a Loan made by a Lender to Company  pursuant to
subsection  2.1A(ii)  and  "AXELs  Series  B"  means  any  such  Loan or  Loans,
collectively.

     "AXEL Series B Commitment" means the commitment of a Lender to make an AXEL
Series  B to  Company  pursuant  to  subsection  2.1A(ii),  and  "AXEL  Series B
Commitments" means such commitments of all Lenders in the aggregate.

     "AXEL Series B Exposure"  means,  with respect to any Lender as of any date
of  determination  (i) prior to the funding of the AXELs Series B, that Lender's
AXEL Series B  Commitment  and (ii) after the funding of the AXELs Series B, the
outstanding principal amount of the AXELs Series B of that Lender.

     "AXEL Series B Notes" means any promissory notes of Company issued pursuant
to subsection 2.1E to evidence the AXELs Series B of any Lenders,  substantially
in the form of Exhibit V annexed hereto, as they may be amended, supplemented or
otherwise modified from time to time.

- ----------
*  AXEL is a registered service mark of Goldman, Sachs & Co.

                                        5

<PAGE>

     "AXEL Series B Lender" means a Lender holding an outstanding  AXEL Series B
or having an AXEL Series B  Commitment,  and "AXEL  Series B Lenders"  means any
such Lender or Lenders, collectively.

     "Bankruptcy  Code"  means  Title  11 of the  United  States  Code  entitled
"Bankruptcy", as now and hereafter in effect, or any successor statute.

     "Base Rate" means,  at any time,  the higher of (x) the New York Prime Rate
or (y) the rate  which is 1/2 of 1% in excess  of the  Federal  Funds  Effective
Rate.

     "Base Rate Loans" means the portion of a Loan bearing interest from time to
time  at a rate  determined  by  reference  to the  Base  Rate  as  provided  in
subsection 2.2A.

     "Bromont  Property"  has the meaning  assigned  to that term in  subsection
6.10B.

     "Business  Day" means (i) any day  excluding  Saturday,  Sunday and any day
which is a legal  holiday under the laws of the Province of Ontario or the State
of New York or is a day on which banking  institutions  located in such province
or state are  authorized  or  required  by law or other  governmental  action to
close,  and (ii) with  respect  to all  notices,  determinations,  fundings  and
payments in connection with the Adjusted  Eurodollar Rate or any Eurodollar Rate
Loans,  any day that is a Business Day described in clause (i) above and that is
also a day for  trading by and  between  banks in Dollar  deposits in the London
interbank market.

     "Canadian Dollars" and the sign "Cdn.$" means the lawful money of Canada.

     "Canadian  Prime Rate" means, at any time, the greater of (i) the per annum
rate of interest quoted, published and commonly known as the "prime rate" of the
Administrative  Agent at its main  office in Toronto,  Ontario as the  reference
rate of  interest  in order to  determine  interest  rates for loans in Canadian
Dollars to its Canadian  borrowers,  adjusted  automatically with each quoted or
published  change in such  rate,  all  without  the  necessity  of any notice to
Company  or any  other  Person;  and  (ii) the sum of (y) the  average  (rounded
upwards if necessary,  to the nearest 0.01%, with  five-thousandths  of 1% being
rounded  up) of the rates per annum for  Canadian  Dollar  bankers'  acceptances
having a term of 30 days that  appears  on the  Reuters  Screen  CDOR Page as of
10:00  a.m.  (Toronto  time)  on the  date  of  determination,  as  reported  by
Administrative  Agent (and if such screen is not  available,  any  successor  or
similar service as may be selected by Administrative  Agent),  and (z) 0.75% per
annum.

     "Capital Lease", as applied to any Person,  means any lease of any property
(whether  real,  personal or mixed) by that Person as lessee that, in conformity
with GAAP,  is  accounted  for as a capital  lease on the balance  sheet of that
Person.

     "Cash" means money, currency or a credit balance in a Deposit Account.

     "Cash Equivalents" means at any date of determination, any of the following
so long as the same are not subject to any Lien:  (i) bonds,  debentures,  notes
and  other  evidence  of  indebtedness  issued,  guaranteed  or  insured  by the
government of Canada or any province, the United States of America or any state,
or the United Kingdom, and maturing not

                                       6

<PAGE>

more than 365 days after the relevant date;  (ii) bonds,  debentures,  notes and
other  evidences  of  indebtedness  maturing  not more  than 265 days  after the
relevant date and issued,  guaranteed or insured by any Person rated A-1, P-1 or
R-1 low (or the then  equivalent)  or better by Standard & Poor's  Ratings Group
("S&P"),  Moody's Investors  Service,  Inc.  ("Moody's") or Dominion Bond Rating
Service  respectively;  (iii)  commercial  paper maturing not more than 265 days
after the  relevant  date  issued,  guaranteed  or  insured by a Person at arm's
length to Company  and its  Subsidiaries  and rated A-1,  P-1 or R-1 low (or the
then  equivalent)  or better by S&P,  Moody's or Dominion  Bond Rating  Service,
respectively; (iv) certificates of deposit or acceptances with a maturity of 265
days or less of any  financial  institution  that is a bank  under  the Bank Act
(Canada) or that is a member of the Federal  Reserve System of the United States
of America,  having  combined  capital and surplus and undivided  profits of not
less than  $500,000,000  (or the  Equivalent  Cdn. $ Amount) and, as applicable,
rated at least "A-" by S&P or at least  "A3" by  Moody's,  or at least  "A++" by
Canadian  Bond  Rating  Service;  (v)  repurchase  agreements  and  reverse
repurchase  agreements  relating  to  marketable  direct  obligations  issued or
directly,  unconditionally  and fully  guaranteed by the Government of Canada or
the United States of America, or issued by any agency thereof (provided that the
full  faith and credit of Canada or the  United  States,  as the case may be, is
pledged in support thereof), in each case maturing within one year from the date
of  acquisition  (provided  that the terms of such  agreements  comply  with the
guidelines set forth in the Cash and Securities Loan Agreement under  Regulation
2200 of the Investment  Dealers  Association of Canada or the Federal  Financial
Agreements of Depository  Institutions  With Securities  Dealers and Others,  as
adopted by the  Comptroller  of the Currency on October 31, 1985, as applicable,
or the equivalents thereof from time to time); and (vi) in the case of any
Subsidiary of Company organized under the laws of any jurisdiction other than
the United States of America or any state, Canada or any province or the United
Kingdom, high quality, short-term liquid Investments accorded the highest rating
available by any applicable rating service and made by such Subsidiary in the
ordinary course of managing its surplus cash position in a manner consistent
with past practices.

     "CIBC" has the meaning  assigned to that term in the  introduction  to this
Agreement.

     "CIBC Letter of Credit"  means the standby  letter of credit issued by CIBC
to  National  Westminster  Bank  on the  Closing  Date  in a  stated  amount  of
(pound)41,000,000.

     "Class" means,  as applied to Lenders,  each of the following three classes
of Lenders: (i) Lenders having Tranche A Term Loan Exposure, (ii) Lenders having
Revolving Loan Exposure and (iii) Lenders having AXEL Series B Exposure.

     "Closing  Date" means the date on or before  March 31,  1998,  on which the
initial Loans are made.

     "Collateral"  means,  collectively,  all of the  real,  personal  and mixed
property  (including  capital  stock) in which Liens are purported to be granted
pursuant to the Collateral Documents as security for the Obligations.

     "Collateral  Documents"  means the Company  Master  Pledge  Agreement,  the
Company Security  Agreement  (U.S.),  the Company Patent and Trademark  Security
Agreement  (U.S.),  the  Subsidiary  Pledge  Agreements  (U.S.),  the Subsidiary
Security  Agreements  (U.S.),  the  Subsidiary  Patent  and  Trademark  Security
Agreements (U.S.), the Mortgages,  the U.K. Pledge Agreement, the U.K. Guarantee
and  Debenture,   the  Copyright  Security   Agreements  (U.S.)  and  all  other
instruments or documents  delivered by any Loan Party pursuant to this Agreement
or any of the other Loan Documents in order to grant to Administrative Agent, on
behalf of Lenders,  a Lien on any real,  personal or mixed property of that Loan
Party as security for the Obligations.

                                       7

<PAGE>

     "Commercial  Letter  of  Credit"  means any  letter  of  credit or  similar
instrument  issued for the purpose of providing the primary payment mechanism in
connection  with the purchase of any materials,  goods or services by Company or
any of its  Subsidiaries  in the ordinary  course of business of Company or such
Subsidiary.

     "Commitments"  means the  commitments of Lenders to make Loans as set forth
in subsection 2.1A.

     "Company" has the meaning assigned to such term in the introduction to this
Agreement.

     "Company  Certificate  of  Designations"  means the provisions of Company's
Articles of Continuance,  as amended  through the Closing Date,  relating to the
Company  Preferred  Stock,  in the  form  delivered  to  Syndication  Agent  and
Administrative  Agent prior to their  execution  of this  Agreement  and as such
provisions may be amended from time to time  thereafter to the extent  permitted
under subsection 7.15A.

     "Company Master Pledge Agreement" means the Company Master Pledge Agreement
executed and delivered by Company on the Closing Date, substantially in the form
of Exhibit XVII annexed hereto.

     "Company  Preferred Stock" means Company's Cdn$2.00  Cumulative  Redeemable
Convertible  Preferred  Shares 1983 R&D Series  (Preferred  Shares - R&D Series)
issued in  accordance  with,  and  subject  to terms set forth in,  the  Company
Certificate of Designations.

     "Company Security  Agreement  (U.S.)" means the Company Security  Agreement
(U.S.) executed and delivered by Company on the Closing Date,  substantially  in
the form of Exhibit XXVIII annexed hereto.

     "Company Patent and Trademark  Security Agreement (U.S.)" means the Company
Patent and Trademark Security Agreement executed and delivered by Company on the
Closing Date, substantially in the form of Exhibit XVIII annexed hereto.

     "Compliance  Certificate" means a certificate  substantially in the form of
Exhibit VII annexed  hereto  delivered  to  Administrative  Agent and Lenders by
Company pursuant to subsection 6.1(iv).

     "Confidential  Information  Memorandum"  means  that  certain  Confidential
Information  Memorandum  relating  to Company  and the credit  facilities  to be
provided hereunder dated February, 1998.

     "Conforming Leasehold Interest" means any Recorded Leasehold Interest as to
which the lessor has agreed in writing for the benefit of  Administrative  Agent
(which writing has been delivered to  Administrative  Agent),  whether under the
terms of the  applicable  lease,  under  the  terms of a  Landlord  Consent  and
Estoppel, or otherwise,  to the matters described in the definition of "Landlord
Consent and Estoppel,"  which interest,  if a subleasehold  or  sub-subleasehold
interest,  is not subject to any contrary  restrictions  contained in a superior
lease or sublease.

     "Consolidated  Adjusted  EBITDA"  means,  for  any  period,  the sum of the

                                       8

<PAGE>

amounts  for such  period of (i)  Consolidated  Net  Income,  (ii)  Consolidated
Interest  Expense,  (iii)  provisions  for taxes  based on  income,  (iv)  total
depreciation  expense,  (v) total amortization  expense, and (vi) other non-cash
items reducing  Consolidated  Net Income less other  non-cash  items  increasing
Consolidated  Net Income,  all of the foregoing as determined on a  consolidated
basis for Company and its Subsidiaries in conformity with GAAP.

     "Consolidated Capital Expenditures" means, for any period, the aggregate of
all  expenditures  (whether paid in cash or other  consideration or accrued as a
liability and including  that portion of Capital  Leases which is capitalized on
the consolidated  balance sheet of Company and its  Subsidiaries) by Company and
its Subsidiaries  during that period that, in conformity with GAAP, are included
in "additions to property,  plant or equipment" or comparable items reflected in
the consolidated statement of cash flows of Company and its Subsidiaries.

     "Consolidated   Cash   Capital   Expenditures"   means,   for  any  period,
Consolidated Capital Expenditures made in cash.

     "Consolidated  Cash Interest  Expense" means, for any period,  Consolidated
Interest Expense for such period  excluding,  however,  any interest expense not
payable in Cash  (including  amortization  of discount and  amortization of debt
issuance costs).

     "Consolidated  Current Assets" means, as at any date of determination,  the
total assets of Company and its  Subsidiaries on a consolidated  basis which may
properly be classified as current assets in conformity with GAAP, excluding Cash
and Cash Equivalents.

     "Consolidated  Current Liabilities" means, as at any date of determination,
the total  liabilities of Company and its  Subsidiaries on a consolidated  basis
which may properly be classified as current liabilities in conformity with GAAP,
excluding the current portions of Funded Debt and Capital Leases.

     "Consolidated  Excess  Cash  Flow"  means,  for any  period,  an amount (if
positive)  equal to (i) the sum,  without  duplication,  of the amounts for such
period of (a)  Consolidated  Adjusted  EBITDA and (b) the  Consolidated  Working
Capital Adjustment minus (ii) the sum, without  duplication,  of the amounts for
such period of (a) voluntary and scheduled repayments of Consolidated Total Debt
(excluding repayments of Revolving Loans except to the extent the Revolving Loan
Commitments are permanently  reduced in connection  with such  repayments),  (b)
Consolidated Capital Expenditures (net of any proceeds of any related financings
with respect to such expenditures),  (c) Consolidated Cash Interest Expense, (d)
cash dividends and other cash  distributions on any shares of Company  Preferred
Stock but only to the extent actually made and only to the extent such dividends
or other  distributions  are permitted  pursuant to  subsection  7.5 and (e) the
provision for current taxes based on income of Company and its  Subsidiaries and
payable in cash with respect to such period.

     "Consolidated  Fixed  Charges"  means,  for any  period,  the sum  (without
duplication)  of the amounts for such period of (i)  Consolidated  Cash Interest
Expense,  (ii)  provisions  for cash  taxes  based on  income,  (iii)  scheduled
principal   payments  of  all  Indebtedness,   (iv)  Consolidated  Cash  Capital
Expenditures  and (v) dividend  payments made pursuant to subsection 7.5, all of
the  foregoing  as  determined  on a  consolidated  basis  for  Company  and its
Subsidiaries in conformity with GAAP.

     "Consolidated  Interest  Expense"  means,  for any period,  total  interest


                                       9
<PAGE>

expense  (including  that portion  attributable  to Capital Leases in accordance
with  GAAP and  capitalized  interest)  of  Company  and its  Subsidiaries  on a
consolidated  basis with respect to all outstanding  Indebtedness of Company and
its  Subsidiaries,  including  all  commissions,  discounts  and other  fees and
charges owed with respect to letters of credit and bankers' acceptance financing
and net costs under  Interest  Rate  Agreements,  but  excluding,  however,  any
amounts  referred  to in  subsection  2.3  payable to  Administrative  Agent and
Lenders on or before the Closing Date.

     "Consolidated  Leverage  Ratio" means,  (i) as of the last day of the first
full Fiscal Quarter  following the Closing Date,  the ratio of (a)  Consolidated
Total Debt as of such date to (b)  Consolidated  Adjusted  EBITDA for the Fiscal
Quarter period ending on such date  multiplied by four,  (ii) as of the last day
of the first two full Fiscal  Quarters  following the Closing Date, the ratio of
(a) Consolidated Total Debt as of such date to (b) Consolidated  Adjusted EBITDA
for the two-Fiscal  Quarter period ending on such date  multiplied by two, (iii)
as of the last day of the first three full Fiscal Quarters following the Closing
Date,  the  ratio  of  (a)  Consolidated  Total  Debt  as of  such  date  to (b)
Consolidated  Adjusted EBITDA for the three-Fiscal Quarter period ending on such
date  multiplied  by a  fraction,  the  numerator  of  which  is  four  and  the
denominator of which is three, and (iv) as of the last day of any Fiscal Quarter
thereafter,  the  ratio of (a)  Consolidated  Total  Debt as of such date to (b)
Consolidated  Adjusted EBITDA for the four-Fiscal  Quarter period ending on such
date.

     "Consolidated  Net Income" means, for any period,  the net income (or loss)
of Company and its Subsidiaries on a consolidated basis for such period taken as
a single  accounting  period  determined in conformity with GAAP;  provided that
there  shall be  excluded  (i) the income (or loss) of any Person  (other than a
Subsidiary  of Company) in which any other Person  (other than Company or any of
its  Subsidiaries)  has a joint interest,  except to the extent of the amount of
dividends  or  other  distributions  actually  paid  to  Company  or  any of its
Subsidiaries by such Person during such period, (ii) the income (or loss) of any
Person accrued prior to the date it becomes a Subsidiary of Company or is merged
into or  consolidated  with Company or any of its  Subsidiaries or that Person's
assets are acquired by Company or any of its  Subsidiaries,  (iii) the income of
any  Subsidiary  of  Company to the extent  that the  declaration  or payment of
dividends or similar  distributions  by that Subsidiary of that income is not at
the time  permitted by  operation of the terms of its charter or any  agreement,
instrument,  judgment,  decree, order, statute, rule or governmental  regulation
applicable to that Subsidiary,  (iv) any after-tax gains or losses  attributable
to Asset Sales or returned  surplus  assets of any Pension Plan, and (v) (to the
extent not  included in clauses (i)  through  (iv) above) any net  extraordinary
gains or net non-cash extraordinary losses.

     "Consolidated Net Worth" means, as at any date of determination, the sum of
the capital stock and  additional  paid-in  capital plus  retained  earnings (or
minus  accumulated  deficits) of Company and its  Subsidiaries on a consolidated
basis determined in conformity with GAAP.

     "Consolidated  Rental Payments" means, for any period, the aggregate amount
of all rents paid or payable by Company and its  Subsidiaries  on a consolidated
basis during that period under all  Operating  Leases to which Company or any of
its Subsidiaries is a party as lessee (net of sublease income).

     "Consolidated  Total  Debt"  means,  as at any date of  determination,  the
aggregate  stated  balance sheet amount of all  Indebtedness  of Company and its
Subsidiaries,


                                       10
<PAGE>

determined on a consolidated basis in accordance with GAAP.

     "Consolidated Working Capital" means, as at any date of determination,  the
excess of Consolidated Current Assets over Consolidated Current Liabilities.

     "Consolidated  Working  Capital  Adjustment"  means,  for any  period  on a
consolidated  basis,  the  amount  (which  may be a  negative  number)  by which
Consolidated  Working  Capital as of the beginning of such period exceeds (or is
less than) Consolidated Working Capital as of the end of such period.

     "Contingent  Obligation",  as  applied to any  Person,  means any direct or
indirect liability,  contingent or otherwise, of that Person (i) with respect to
any Indebtedness,  lease, dividend or other obligation of another if the primary
purpose or intent thereof by the Person  incurring the Contingent  Obligation is
to provide  assurance  to the obligee of such  obligation  of another  that such
obligation  of  another  will be  paid or  discharged,  or that  any  agreements
relating  thereto will be complied with, or that the holders of such  obligation
will be protected  (in whole or in part) against loss in respect  thereof,  (ii)
with respect to any letter of credit issued for the account of that Person or as
to which that Person is otherwise liable for reimbursement of drawings, or (iii)
under Hedge Agreements.  Contingent  Obligations shall include (a) the direct or
indirect guaranty,  endorsement (otherwise than for collection or deposit in the
ordinary course of business), co-making,  discounting with recourse or sale with
recourse by such Person of the obligation of another, (b) the obligation to make
take-or-pay or similar payments if required regardless of non-performance by any
other party or parties to an agreement, and (c) any liability of such Person for
the obligation of another through any agreement (contingent or otherwise) (X) to
purchase,  repurchase  or  otherwise  acquire  such  obligation  or any security
therefor,  or to provide  funds for the payment or discharge of such  obligation
(whether in the form of loans, advances, stock purchases,  capital contributions
or otherwise)  or (Y) to maintain the solvency or any balance sheet item,  level
of income or  financial  condition  of another if, in the case of any  agreement
described under  subclauses (X) or (Y) of this sentence,  the primary purpose or
intent  thereof is as described  in the  preceding  sentence.  The amount of any
Contingent  Obligation  shall  be  equal  to the  amount  of the  obligation  so
guaranteed  or  otherwise  supported  or,  if less,  the  amount  to which  such
Contingent Obligation is specifically limited.

     "Contractual Obligation",  as applied to any Person, means any provision of
any Security issued by that Person or of any material indenture,  mortgage, deed
of trust,  contract,  undertaking,  agreement or other  instrument to which that
Person is a party or by which it or any of its  properties  is bound or to which
it or any of its properties is subject.

     "Copyright   Security  Agreement  (U.S.)"  means  each  Copyright  Security
Agreement  (U.S.)  executed and delivered by Company and an existing  Subsidiary
Guarantor  on the  Closing  Date or executed  and  delivered  by any  additional
Subsidiary  Guarantor from time to time thereafter in accordance with subsection
6.8, in each case  substantially in the form of Exhibit XXIX annexed hereto, and
"Copyright  Security  Agreements  (U.S.)"  means  all  such  Copyright  Security
Agreements (U.S.), collectively.

     "Currency  Agreement"  means any foreign exchange  contract,  currency swap
agreement,  futures  contract,  option contract,  synthetic cap or other similar
agreement or arrangement to which Company or any of its Subsidiaries is a party.

     "Deposit Account" means a demand,  time, savings,  passbook or like account


                                       11
<PAGE>

with a bank,  savings and loan association,  credit union or like  organization,
other than an account evidenced by a negotiable certificate of deposit.

     "Discounted  Note Documents"  means the Discounted  Notes,  Discounted Note
Terms  and  Conditions  and any  other  documents  or  instruments  executed  in
connection therewith.

     "Discounted  Notes"  means those  certain  Discounted  Notes  issued on the
Closing  Date by Mitel  Telecom  to Mitel  Barbados  pursuant  to those  certain
Discounted Note Terms and Conditions, as such notes may be amended, supplemented
or otherwise modified from time to time in accordance with subsection 7.15A.

     "Discounted  Note  Terms and  Conditions"  means  those  certain  Terms and
Conditions for a Discounted Note Program  established by Mitel Telecom and as in
effect on the  Closing  Date,  as such  terms  and  conditions  may be  amended,
supplemented  or  otherwise  modified  from  time  to time  in  accordance  with
subsection 7.15A.

     "Dollars"  and the sign "$" mean the lawful  money of the United  States of
America.

     "Eligible  Assets"  has the  meaning  assigned  to that term in  subsection
2.4B(iii)(a).

     "Eligible Assignee" means (1)(A) with respect to the AXELs Series B and the
AXEL Series B Commitments, (i) a commercial bank organized under the laws of the
United  States or any state  thereof;  (ii) a savings  and loan  association  or
savings bank organized under the laws of the United States or any state thereof;
(iii) a  commercial  bank  organized  under the laws of any other  country  or a
political  subdivision thereof;  provided that (x) such bank is acting through a
branch or agency  located  in the  United  States or (y) such bank is  organized
under the laws of a country  that is a member of the  Organization  for Economic
Cooperation and Development or a political subdivision of such country; and (iv)
any other entity which is an  "accredited  investor" (as defined in Regulation D
under the  Securities  Act)  which  extends  credit or buys  loans as one of its
businesses including, but not limited to, insurance companies,  mutual funds and
lease  financing  companies;  and (B) any Lender and any Affiliate of any Lender
and (2)(A) with  respect to the  Tranche A Term  Loans,  the Tranche A Term Loan
Commitments,  the Revolving  Loans and the Revolving Loan  Commitments,  (i) any
commercial bank, financial  institution or other accredited investor resident in
Canada for tax purposes,  and (ii) any Lender and any Affiliate of any Lender in
each case which is  organized  under the laws of Canada or a  province  thereof;
provided  that no Affiliate of Company shall be an Eligible  Assignee;  provided
further that no  "non-resident"  of Canada  within the meaning of the Income Tax
Act (Canada)  shall be an Eligible  Assignee  with respect to the Tranche A Term
Loans,  the  Tranche  A Term  Loan  Commitments,  the  Revolving  Loans  and the
Revolving Loan Commitments.

     "Employee Benefit Plan" means any U.S. Employee Benefit Plan or any Foreign
Employee Benefit Plan.

     "Environmental Claim" means any investigation, notice, notice of violation,
claim,  action,  suit,  proceeding,  demand,  abatement  order or other order or
directive (conditional or otherwise), by any governmental authority or any other
Person,  arising  (i)


                                       12
<PAGE>

pursuant  to or in  connection  with any  actual  or  alleged  violation  of, or
liability  under, any  Environmental  Law, (ii) in connection with any Hazardous
Materials or any actual or alleged  Hazardous  Materials  Activity,  or (iii) in
connection with any actual or alleged damage,  injury, threat or harm to health,
safety, natural resources or the environment.

     "Environmental  Laws"  means  any  and  all  current  or  future  statutes,
ordinances,   orders,  rules,   regulations,   guidance  documents,   judgments,
Governmental   Authorizations,   or  any  other   requirements  of  governmental
authorities or common law relating to (i) environmental matters, including those
relating to any Hazardous Materials Activity, (ii) the generation, use, storage,
transportation or disposal of Hazardous Materials,  or (iii) occupational safety
and health,  industrial  hygiene,  land use or the protection of human, plant or
animal  health or welfare,  ecosystems  or water  including  ground water in any
manner applicable to Company or any of its Subsidiaries or any Facility, each as
amended or supplemented,  any analogous  present or future  national,  regional,
European Union, state, provincial,  municipal or local statutes or laws, and any
regulations promulgated pursuant to any of the foregoing.

     "Equivalent Cdn. $ Amount" means, at any relevant time, on any day and with
respect to any amount of Dollars,  the amount of Canadian Dollars which would be
required  to buy such  amount of Dollars at the Bank of Canada noon rate at such
time (as quoted or published from time to time by the Bank of Canada).

     "Equivalent  U.S. $ Amount" means, on any day with respect to any amount of
Canadian  Dollars,  the amount of Dollars  which  would be  required to buy such
amount of Canadian  Dollars  using the noon rate quoted by the Bank of Canada on
that day.

     "ERISA"  means the Employee  Retirement  Income  Security  Act of 1974,  as
amended from time to time, and any successor thereto.

     "ERISA  Affiliate"  means,  as applied to any Person,  (i) any  corporation
which is a member of a controlled  group of  corporations  within the meaning of
Section  414(b) of the  Internal  Revenue Code of which that Person is a member;
(ii) any trade or business (whether or not incorporated)  which is a member of a
group of trades or businesses under common control within the meaning of Section
414(c) of the Internal Revenue Code of which that Person is a member;  and (iii)
any member of an affiliated  service group within the meaning of Section  414(m)
or (o) of the  Internal  Revenue  Code of which  that  Person,  any  corporation
described in clause (i) above or any trade or business  described in clause (ii)
above  is a  member.  Any  former  ERISA  Affiliate  of  Company  or  any of its
Subsidiaries  shall  continue to be considered an ERISA  Affiliate of Company or
such Subsidiary within the meaning of this definition with respect to the period
such  entity  was an ERISA  Affiliate  of Company  or such  Subsidiary  and with
respect  to  liabilities  arising  after such  period for which  Company or such
Subsidiary could be liable under the Internal Revenue Code or ERISA.

     "ERISA Event" means (i) a "reportable  event" within the meaning of Section
4043 of ERISA and the regulations  issued thereunder with respect to any Pension
Plan (excluding  those for which the provision for 30-day notice to the PBGC has
been  waived  by  regulation);  (ii) the  failure  to meet the  minimum  funding
standard of Section 412 of the Internal Revenue Code with respect to any Pension
Plan  (whether or not waived in accordance  with Section  412(d) of the Internal
Revenue  Code) or the  failure  to make by its due date a  required  installment
under  Section  412(m) of the Internal  Revenue Code with respect to any Pension
Plan or the failure to make any required  contribution to a Multiemployer  Plan;
(iii)


                                       13
<PAGE>

the  provision  by the  administrator  of any Pension  Plan  pursuant to Section
4041(a)(2)  of ERISA of a notice of intent to terminate  such plan in a distress
termination  described  in Section  4041(c)  of ERISA;  (iv) the  withdrawal  by
Company,  any of its  Subsidiaries or any of their  respective  ERISA Affiliates
from any Pension Plan with two or more contributing  sponsors or the termination
of any such Pension Plan resulting in liability pursuant to Section 4063 or 4064
of ERISA;  (v) the  institution  by the PBGC of  proceedings  to  terminate  any
Pension Plan, or the occurrence of any event or condition which might constitute
grounds under ERISA for the  termination  of, or the appointment of a trustee to
administer,  any Pension Plan; (vi) the imposition of liability on Company,  any
of its  Subsidiaries or any of their  respective  ERISA  Affiliates  pursuant to
Section  4062(e)  or 4069 of ERISA or by reason of the  application  of  Section
4212(c) of ERISA;  (vii) the withdrawal of Company,  any of its  Subsidiaries or
any of their  respective  ERISA  Affiliates in a complete or partial  withdrawal
(within the meaning of Sections  4203 and 4205 of ERISA) from any  Multiemployer
Plan if there is any potential  liability  therefor,  or the receipt by Company,
any of its  Subsidiaries or any of their  respective  ERISA Affiliates of notice
from any Multiemployer Plan that it is in reorganization or insolvency  pursuant
to  Section  4241 or 4245 of  ERISA,  or that it  intends  to  terminate  or has
terminated under Section 4041A or 4042 of ERISA; (viii) the occurrence of an act
or omission  which  could give rise to the  imposition  on  Company,  any of its
Subsidiaries or any of their respective ERISA Affiliates of a material amount of
fines,  penalties,  taxes or related  charges  under  Chapter 43 of the Internal
Revenue Code or under Section 409,  Section 502(c),  (i) or (l), or Section 4071
of ERISA in  respect of any  Employee  Benefit  Plan;  (ix) the  assertion  of a
material  claim (other than routine  claims for  benefits)  against any Employee
Benefit Plan other than a Multiemployer  Plan or the assets thereof,  or against
Company,  any of its Subsidiaries or any of their respective ERISA Affiliates in
connection with any Employee Benefit Plan; (x) receipt from the Internal Revenue
Service of notice of the  failure  of any  Pension  Plan (or any other  Employee
Benefit  Plan  intended to be  qualified  under  Section  401(a) of the Internal
Revenue Code) to qualify under Section  401(a) of the Internal  Revenue Code, or
the  failure  of any trust  forming  part of any  Pension  Plan to  qualify  for
exemption from taxation  under Section  501(a) of the Internal  Revenue Code; or
(xi) the  imposition of a Lien  pursuant to Section  401(a)(29) or 412(n) of the
Internal Revenue Code or pursuant to ERISA with respect to any Pension Plan.

     "Eurocurrency  Liabilities"  has  the  meaning  assigned  to  that  term in
Regulation  D of the Board of  Governors of the Federal  Reserve  System,  as in
effect from time to time.

     "Eurodollar  Rate Loans" means the portion of a Loan bearing  interest from
time to time at a rate  determined by reference to the Adjusted  Eurodollar Rate
as provided in subsection 2.2A.

     "Eurodollar Rate Reserve Percentage" means, for any Interest Period for all
Eurodollar  Rate  Loans  comprising  part of the  same  borrowing,  the  reserve
percentage  applicable  two Business  Days before the first day of such Interest
Period under  regulations  issued from time to time by the Board of Governors of
the  Federal  Reserve  System (or any  successor)  for  determining  the maximum
reserve requirement (including, without limitation, any emergency,  supplemental
or other marginal reserve  requirement) for a member bank of the Federal Reserve
System in New York City with respect to liabilities  or assets  consisting of or
including  Eurocurrency  Liabilities  (or with respect to any other  category of
liabilities  that  includes  deposits by reference to which the interest rate on
Eurodollar  Rate  Loans  is  determined)  having a term  equal to such  Interest
Period.

                                       14
<PAGE>

     "Event of Default" means each of the events set forth in Section 8.

     "Exchange Act" means the  Securities  Exchange Act of 1934, as amended from
time to time, and any successor statute.

     "Exchange Rate" means,  on any date when an amount  expressed in a currency
other than Dollars is to be determined with respect to any Letter of Credit, the
nominal  rate of  exchange  of the  applicable  Issuing  Lender  in the New York
foreign  exchange  market  for the  purchase  by such  Issuing  Lender (by cable
transfer) of such currency in exchange for Dollars at 12:00 noon (Toronto  time)
one  Business  Day prior to such  date,  expressed  as a number of units of such
currency per one Dollar.

     "Existing  Credit   Agreements"  means  (i)  the  Revolving  Demand  Credit
(Operating  Line)  provided  by CIBC to  Company  for  general  purposes  in the
aggregate  amount of Cdn.$10  million,  (ii) the  Letter  Loan  Agreement  dated
February 22, 1994 among the Company and NBD Bank  providing a general  operating
line of credit in the aggregate amount of US$10 million,  and (iii) that certain
(a) bank overdraft facility of approximately (pound)35,000,000, (b) that certain
BACS  facility of not more than  (pound)6,000,000  and (c) that certain  foreign
exchange line, in each case provided by National  Westminster Bank to PSL and as
amended prior to the Closing Date.

     "Existing  Letters of Credit"  means the  letters of credit  issued by CIBC
prior to the Closing  Date  pursuant to that certain  Cdn.$15,000,000  Revolving
Demand Credit for Letters of Credit and Guarantees,  which letters of credit are
listed on Schedule  1.1A annexed  hereto and will,  as of the Closing  Date,  be
deemed  outstanding as Letters of Credit issued  pursuant to subsection 3.1A and
3.7 of this Agreement.

     "Facilities"  means any and all real  property  (including  all  buildings,
fixtures or other  improvements  located  thereon) now,  hereafter or heretofore
owned, leased,  operated or used by Company or any of its Subsidiaries or any of
their respective predecessors or Affiliates.

     "Federal  Funds  Effective  Rate"  means,  for any  period,  a  fluctuating
interest  rate equal for each day during such period to 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 for such day (or,
if such day is not a Business Day, for the next  preceding  Business Day) by the
Federal  Reserve Bank of New York,  or, if such rate is not so published for any
day which is a Business Day, the average of the  quotations for such day on such
transactions  received by Administrative  Agent from three Federal funds brokers
of recognized standing selected by Administrative Agent.

     "Financial  Plan"  has the  meaning  assigned  to that  term in  subsection
6.1(xiii).

     "First Priority" means, with respect to any Lien purported to be created in
any  Collateral  pursuant  to any  Collateral  Document,  that (i) such Lien has
priority  over  any  other  Lien  on  such  Collateral   (other  than  Permitted
Encumbrances)  and  (ii)  such  Lien is the  only  Lien  (other  than  Permitted
Encumbrances  and Liens  permitted  pursuant  to  subsection  7.2) to which such
Collateral is subject.

     "Fiscal Quarter" means a fiscal quarter of any Fiscal Year.



                                       15
<PAGE>

     "Fiscal Year" means the fiscal year of Company and its Subsidiaries  ending
on the  last  Friday  in March  of each  calendar  year.  For  purposes  of this
Agreement,  any  particular  Fiscal Year shall be designated by reference to the
calendar year in which such Fiscal Year ends.

     "Flood  Hazard  Property"  means a  Mortgaged  Property  located in an area
designated by the Federal Emergency Management Agency as having special flood or
mud slide hazards.

     "Foreign Employee Benefit Plan" means any employee benefit plan, agreement,
scheme or arrangement  (other than a U.S. Employee Benefit Plan) which is or was
maintained or contributed to by Company, any of its Subsidiaries or any of their
respective  ERISA  Affiliates for the benefit of any employee or former employee
(or any of their  dependents)  who is not a citizen  or  resident  of the United
States, including, without limitation, any pension, retirement savings, deferred
compensation,   share  option  or  profit  sharing  scheme  (including   without
limitation any registered retirement savings plan, deferred profit sharing plan,
or registered pension plan maintained contractually or pursuant to any provision
of the Income Tax Act of Canada or legislation of Canada or any Province thereof
governing any such plan),  any health or welfare  plan, or any plan,  agreement,
scheme or arrangement  relating to life,  medical or similar  benefits  (whether
provided through the purchase of insurance or otherwise).

     "Foreign  Benefit  Plan Event"  means the  occurrence  of an event,  act or
omission or the  existence of facts or  circumstances  with respect to a Foreign
Employee  Benefit  Plan  resulting  in (i) the failure to comply in any material
respect  with  the  terms  of any  Foreign  Employee  Benefit  Plan or  relevant
applicable law, (ii) the failure timely to make all required contributions,  and
to pay all  required  taxes  or  expenses,  to or with  respect  to any  Foreign
Employee  Benefit Plan in any material  amount,  (iii) the  acceleration  of any
funding  requirements  with respect to any Foreign  Employee Benefit Plan in any
material  amount,  (iv) the  imposition of judgments,  damages,  awards,  liens,
fines,  penalties,  taxes or similar or related charges on any Loan Party or any
of its  Subsidiaries  with  respect to a Foreign  Employee  Benefit  Plan in any
material amount,  or (v) the loss of qualification  for beneficial tax treatment
under applicable relevant laws for any Foreign Employee Benefit Plan designed or
intended to qualify for such beneficial tax treatment.

     "Foreign  Pension  Plan"  means  any  Foreign  Employee  Benefit  Plan that
provides,  or is designed to provide,  pensions,  retirement income,  retirement
savings or  deferred  compensation  for the  benefit of any  employee  or former
employee or any of their dependents.

     "Funded Debt",  as applied to any Person,  means all  Indebtedness  of that
Person  (including  any current  portions  thereof) which by its terms or by the
terms of any instrument or agreement relating thereto matures more than one year
from,  or is directly  renewable or extendable at the option of that Person to a
date more  than one year  from  (including  an  option  of that  Person  under a
revolving credit or similar agreement obligating the lender or lenders to extend
credit  over a  period  of one  year or more  from),  the  date of the  creation
thereof.

     "Funding and Payment Office" means (i) the office of  Administrative  Agent
and Swing Line Lender located at Main Branch Commerce Court, 7th Floor, Toronto,


                                       16
<PAGE>

Ontario or (ii) such other office of Administrative  Agent and Swing Line Lender
as may from time to time  hereafter be  designated  as such in a written  notice
delivered by Administrative Agent to Company and each Lender.

     "Funding Date" means the date of the funding of a Loan.

     "GAAP" means,  at any time,  subject to the  limitations on the application
thereof set forth in subsection 1.2, accounting principles generally accepted in
Canada as  recommended  in the Handbook of the  Canadian  Institute of Chartered
Accountants  at the  relevant  time applied on a  consistent  basis  (except for
changes  made with the prior  written  consent of the  Administrative  Agent and
approved by Company's  independent  auditors in accordance with promulgations of
the Canadian Institute of Chartered Accountants).

     "Governmental  Authorization"  means any  permit,  license,  authorization,
plan, directive,  consent order or consent decree of or from any multi-national,
national,  regional,  federal,  provincial,  European Union, state, municipal or
local governmental authority, agency or court.

     "Guaranties" means, collectively,  the U.K. Guarantee and Debenture and the
Subsidiary Guaranties.

     "Hazardous Materials" means (i) any chemical,  material or substance at any
time  defined  as or  included  in the  definition  of  "hazardous  substances",
"hazardous wastes", "hazardous materials", "extremely hazardous waste", "acutely
hazardous waste", "radioactive waste", "biohazardous waste", "pollutant", "toxic
pollutant",  "contaminant",  "restricted  hazardous waste",  "infectious waste",
"toxic substances",  or any other term or expression intended to define, list or
classify  substances  by reason of properties  harmful to health,  safety or the
indoor  or  outdoor   environment   (including   harmful   properties   such  as
ignitability, corrosivity, reactivity,  carcinogenicity,  toxicity, reproductive
toxicity,  "TCLP toxicity" or "EP toxicity" or words of similar import under any
applicable  Environmental Laws); (ii) any oil, petroleum,  petroleum fraction or
petroleum  derived  substance;  (iii) any drilling  fluids,  produced waters and
other wastes associated with the exploration, development or production of crude
oil,  natural gas or  geothermal  resources;  (iv) any  flammable  substances or
explosives;   (v)  any  radioactive  materials;   (vi)  any  asbestos-containing
materials; (vii) urea formaldehyde foam insulation;  (viii) electrical equipment
which contains any oil or dielectric fluid containing polychlorinated biphenyls;
(ix) pesticides; and (x) any other chemical, material or substance,  exposure to
which is prohibited, limited or regulated by any governmental authority or which
may or could pose a hazard to the health and safety of the owners,  occupants or
any  Persons  in the  vicinity  of any  Facility  or to the  indoor  or  outdoor
environment.

     "Hazardous  Materials  Activity"  means  any  past,  current,  proposed  or
threatened  activity,  event or occurrence  involving  any Hazardous  Materials,
including  the  use,  manufacture,   possession,   storage,  holding,  presence,
existence,   location,  Release,   threatened  Release,  discharge,   placement,
generation,  transportation,  processing,  construction,  treatment,  abatement,
removal,  remediation,  disposal,  disposition  or  handling  of  any  Hazardous
Materials,  and any corrective  action or response action with respect to any of
the foregoing.

     "Hedge Agreement" means an Interest Rate Agreement or a Currency  Agreement
designed to hedge against  fluctuations  in interest  rates or currency  values,


                                       17

<PAGE>

respectively.

     "Immaterial  Subsidiary"  means any  Subsidiary  of Company  which is not a
Subsidiary  Guarantor,  or is not  required  to  become a  Subsidiary  Guarantor
pursuant to subsection 6.8.

     "Indebtedness",  as applied to any Person,  means (i) all  indebtedness for
borrowed money,  (ii) that portion of obligations with respect to Capital Leases
that is properly classified as a liability on a balance sheet in conformity with
GAAP, (iii) notes payable and drafts accepted representing  extensions of credit
whether or not representing  obligations for borrowed money, (iv) any obligation
owed for all or any part of the deferred  purchase price of property or services
(excluding any such obligations  incurred under ERISA),  which purchase price is
(a) due more than six months from the date of  incurrence  of the  obligation in
respect  thereof or (b) evidenced by a note or similar written  instrument,  and
(v) 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  nonrecourse  to the credit of that  Person.
Obligations  under Interest Rate Agreements and Currency  Agreements  constitute
(X) in the  case of Hedge  Agreements,  Contingent  Obligations,  and (Y) in all
other cases, Investments, and in neither case constitute Indebtedness.

     "Indemnitee" has the meaning assigned to that term in subsection 10.3.

     "Initial  Period" means the period  commencing on and including the Closing
Date  and  ending  on (but  excluding)  the  earlier  of (i) the  date on  which
Syndication Agent notifies Company that it has concluded its primary syndication
of the  Loans  and  Commitments  and (ii) the date  which is 60 days  after  the
Closing Date.

     "Intellectual   Property"  means  all  patents,   trademarks,   tradenames,
copyrights,  technology,  know-how and  processes  used in or necessary  for the
conduct of the business of Company and its  Subsidiaries as currently  conducted
that are  material  to the  condition  (financial  or  otherwise),  business  or
operations of Company and its Subsidiaries, taken as a whole.

     "Intercompany Note" has the meaning assigned to that term in subsection 7.1
and  includes  the  Discounted  Notes  and  any  notes  issued  pursuant  to the
IntraGroup Loan Agreement.

     "Interest  Payment  Date"  means (i) with  respect to any Base Rate Loan or
Swing Line Loan, the first  calendar day of each month of each year,  commencing
on the first such date to occur after the Closing Date, and (ii) with respect to
any  Eurodollar  Rate Loan, the last day of each Interest  Period  applicable to
such Loan;  provided  that in the case of each  Interest  Period of six  months,
"Interest  Payment  Date" shall also include the date that is three months after
the commencement of such Interest Period.

     "Interest Period" has the meaning assigned to that term in subsection 2.2B.

     "Interest Rate Agreement" means any interest rate swap agreement,  interest
rate cap agreement, interest rate collar agreement or other similar agreement or
arrangement to which Company or any of its Subsidiaries is a party.



                                       18
<PAGE>

     "Interest  Rate  Determination  Date"  means,  with respect to any Interest
Period, the second Business Day prior to the first day of such Interest Period.

     "Internal Revenue Code" means the Internal Revenue Code of 1986, as amended
to the date hereof and from time to time hereafter, and any successor statute.

     "IntraGroup Loan Agreement" means the IntraGroup Loan Agreement dated as of
the Closing  Date between  Mitel  Telecom and Company  relating to  intercompany
loans  among  the  foregoing  entities,   as  such  agreement  may  be  amended,
supplemented  or  otherwise  modified  from  time  to  time  to  add  additional
Subsidiaries  as parties  thereto  pursuant to subsection  6.8A and otherwise in
accordance with subsection 7.15A.

     "Inventory"   means,  with  respect  to  any  Person  as  of  any  date  of
determination, all goods, merchandise and other personal property which are then
held by such  Person  for sale or lease,  including  raw  materials  and work in
process.

     "Investment" means (i) any direct or indirect purchase or other acquisition
by Company or any of its  Subsidiaries  of, or of a beneficial  interest in, any
Securities of any other Person  (including any Subsidiary of Company),  (ii) any
direct or indirect  redemption,  retirement,  purchase or other  acquisition for
value, by any Subsidiary of Company from any Person other than Company or any of
its Subsidiaries,  of any equity Securities of such Subsidiary, (iii) any direct
or  indirect  loan,  advance  (other  than  advances  to  employees  for moving,
entertainment and travel expenses,  drawing accounts and similar expenditures in
the ordinary  course of business) or capital  contribution  by Company or any of
its  Subsidiaries to any other Person,  including all  indebtedness and accounts
receivable  from that other Person that are not current  assets or did not arise
from sales to that other  Person in the  ordinary  course of  business,  or (iv)
Interest  Rate  Agreements  or  Currency   Agreements  not  constituting   Hedge
Agreements.  The amount of any  Investment  shall be the  original  cost of such
Investment plus the cost of all additions  thereto,  without any adjustments for
increases or decreases in value,  or write-ups,  write-downs or write-offs  with
respect to such Investment.

     "IP  Collateral"  means,  collectively,  the  Collateral  under the Company
Patent and  Trademark  Security  Agreement  (U.S.),  the  Subsidiary  Patent and
Trademark  Security  Agreements  (U.S.), the Copyright Security Agreement (U.S.)
and any similar Collateral under any of the other Collateral Documents.

     "Issuing Lender" means, with respect to any Letter of Credit (including any
Existing Letter of Credit), the Lender which agrees or is otherwise obligated to
issue such Letter of Credit, determined as provided in subsection 3.1B(ii).

     "Joint  Venture"  means a  joint  venture,  partnership  or  other  similar
arrangement,  whether in corporate,  partnership,  limited  liability company or
other legal form;  provided that in no event shall any  corporate  Subsidiary of
any Person be considered to be a Joint Venture to which such Person is a party.

     "Landlord  Consent  and  Estoppel"  means,  with  respect to any  Leasehold
Property (other than any Leasehold  Property located in the United  Kingdom),  a
letter,  certificate  or other  instrument  in writing from the lessor under the
related  lease,  satisfactory  in form and  substance to  Administrative  Agent,
pursuant to which such lessor agrees,  for the benefit of Administrative  Agent,
(i) that without any further consent of such lessor or any further action on the
part of the Loan Party holding such Leasehold Property,  such Leasehold


                                       19
<PAGE>

Property  may be  encumbered  pursuant to a Mortgage  and may be assigned to the
purchaser at a foreclosure  sale or in a transfer in lieu of such a sale (and to
a subsequent third party assignee if  Administrative  Agent,  any Lender,  or an
Affiliate of either so acquires such Leasehold Property),  (ii) that such lessor
shall not  terminate  such  lease as a result of a  default  by such Loan  Party
thereunder without first giving  Administrative Agent notice of such default and
at  least  30  days  (or,  if  such  default  cannot   reasonably  be  cured  by
Administrative Agent within such period, such longer period as may reasonably be
required) to cure such default,  (iii) to the matters  contained in a collateral
access   agreement  in  a  form  and  substance   reasonably   satisfactory   to
Administrative  Agent, and (iv) to such other matters relating to such Leasehold
Property as Administrative Agent may reasonably request.

     "Leasehold  Property"  means any  leasehold  interest  of any Loan Party as
lessee under any lease of real property,  other than any such leasehold interest
designated from time to time by  Administrative  Agent in its sole discretion as
not being required to be included in the Collateral.

     "Lender" and "Lenders" means the persons identified as "Lenders" and listed
on the signature  pages of this  Agreement,  together with their  successors and
permitted assigns pursuant to subsection 10.1; provided that the term "Lenders",
when used in the context of a particular  Commitment,  shall mean Lenders having
that Commitment.

     "Lender Counterparties" means, collectively, the Lenders party from time to
time to any Hedge Agreement with Company.

     "Lender Hedge Agreements" means, collectively, the Hedge Agreements entered
into from time to time by Company and one or more Lenders.

     "Letter of Credit" or  "Letters  of  Credit"  means  Commercial  Letters of
Credit and Standby  Letters of Credit issued or to be issued by Issuing  Lenders
for the account of Company  pursuant to subsection  3.1,  including the Existing
Letters of Credit.

     "Letter of Credit Usage" means, as at any date of determination, the sum of
(i) the maximum  aggregate  amount which is or at any time thereafter may become
available for drawing under all Letters of Credit then outstanding plus (ii) the
aggregate  amount of all  drawings  under  Letters of Credit  honored by Issuing
Lenders  and  not  theretofore   reimbursed  by  Company   (including  any  such
reimbursement  out of the proceeds of  Revolving  Loans  pursuant to  subsection
3.3B).  For purposes of this  definition,  any amount described in clause (i) or
(ii) of the preceding  sentence  which is  denominated  in a currency other than
Dollars shall be valued based on the applicable  Exchange Rate for such currency
as of the applicable date of determination.

     "Lien" means any lien,  mortgage,  pledge,  assignment,  security interest,
hypothec charge or encumbrance of any kind  (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  option,  trust  or  other
preferential arrangement having the practical effect of any of the foregoing.

     "Loan" or  "Loans"  means one or more of the  Tranche A Term  Loans,  AXELs
Series B, Revolving Loans or any combination thereof.

     "Loan  Documents"  means this Agreement,  the Notes,  the Letters of Credit


                                       20
<PAGE>

(and any  applications  for, or  reimbursement  agreements or other documents or
certificates  executed by Company in favor of an Issuing Lender relating to, the
Letters of Credit), the Guaranties and the Collateral Documents.

     "Loan Party" means each of Company and any of Company's  Subsidiaries  from
time to time  executing  a Loan  Document,  and  "Loan  Parties"  means all such
Persons,  collectively;  provided that, for purposes of Section 5 hereof,  "Loan
Party" and "Loan Parties" shall include the U.K. Plessey Entities.

     "Margin Stock" has the meaning assigned to that term in Regulation U of the
Board of Governors of the Federal Reserve System as in effect from time to time.

     "Material  Adverse  Effect"  means (i) a material  adverse  effect upon the
business, operations,  properties, assets, condition (financial or otherwise) or
prospects  of  Company  and its  Subsidiaries  taken  as a  whole,  or (ii)  the
impairment  of the  ability of any Loan Party to perform,  or of  Administrative
Agent or Lenders to enforce, the Obligations.

     "Material  Contract"  means  any  contract  or other  arrangement  to which
Company or any of its  Subsidiaries  is a party (other than the Loan  Documents)
for which breach, nonperformance,  cancellation or failure to renew could have a
Material Adverse Effect.

     "Material   Leasehold  Property"  means  a  Leasehold  Property  reasonably
determined by  Administrative  Agent to be of material value as Collateral or of
material  importance to the  operations  of Company or any of its  Subsidiaries;
provided,  however,  that,  excepting any such Leasehold Properties set forth on
Schedule 4.1H annexed  hereto,  no Leasehold  Property with respect to which the
aggregate amount of all rents payable during any one Fiscal Year does not exceed
$1,000,000  (or its  equivalent  in any  other  currency)  shall be a  "Material
Leasehold Property".

     "Material  Subsidiary" means Mitel Telecom,  Mitel AB, Mitel, Inc., PSL and
any  other   Subsidiary  of  Company  which,   together  with  its  consolidated
Subsidiaries,  has (i) revenues which represent more than 10% of the revenues of
Company and its  Subsidiaries  on a  consolidated  basis,  or (ii) assets  which
represent more than 10% of the assets of the Company and its  Subsidiaries  on a
consolidated  basis;  provided,  however,  that "Material  Subsidiary" shall not
include  Mitel  Barbados  to the  extent  that  the  representation  of  Company
contained in subsection 5.20 is true and correct.

     "MEDL" means Marconi  Electronic  Devices Limited,  a company  incorporated
under the laws of England and Wales.

     "Mitel AB" means Mitel Semiconductors AB, a corporation organized under the
laws of Sweden.

     "Mitel Barbados" means Mitel (Barbados) Ltd., a corporation organized under
the laws of Barbados.

     "Mitel Telecom" means Mitel Telecom Limited,  a company  incorporated under
the laws of England and Wales.

     "Mortgage" means (i) a security instrument (whether designated as a deed of


                                       21
<PAGE>

trust or a mortgage or by any similar title)  executed and delivered by any Loan
Party,  substantially  in the form of Exhibit  XXIII  annexed  hereto or in such
other form as may be approved by Administrative Agent in its sole discretion, in
each case with such  changes  thereto as may be  recommended  by  Administrative
Agent's local counsel based on local laws or customary local mortgage or deed of
trust practices,  or (ii) at  Administrative  Agent's option,  in the case of an
Additional Mortgaged Property (as defined in subsection 6.9), an amendment to an
existing  Mortgage,  in form satisfactory to Administrative  Agent,  adding such
Additional  Mortgaged  Property to the Real Property  Assets  encumbered by such
existing Mortgage,  in either case as such security  instrument or amendment may
be amended,  supplemented or otherwise  modified from time to time.  "Mortgages"
means all such instruments,  including the Closing Date Mortgages (as defined in
subsection  4.1H) and any Additional  Mortgages (as defined in subsection  6.9),
collectively.

     "Mortgaged Property" means a Closing Date Mortgaged Property (as defined in
subsection 4.1H) or an Additional  Mortgaged  Property (as defined in subsection
6.9).

     "Multiemployer  Plan"  means  any U.S.  Employee  Benefit  Plan  which is a
"multiemployer plan" as defined in Section 4001(a)(3) of ERISA.

     "Net Asset Sale  Proceeds"  means,  with  respect to any Asset  Sale,  Cash
payments (including any Cash received by way of deferred payment pursuant to, or
by  monetization  of, a note  receivable or  otherwise,  but only as and when so
received)  received  from such Asset  Sale,  net of any bona fide  direct  costs
incurred  in  connection  with such  Asset  Sale,  including  (i)  income  taxes
reasonably estimated to be actually payable within two years of the date of such
Asset Sale as a result of any gain recognized in connection with such Asset Sale
(ii) value  added  taxes  imposed  by  applicable  law and (iii)  payment of the
outstanding principal amount of, premium or penalty, if any, and interest on any
Indebtedness  (other  than the Loans)  that is secured by a Lien on the stock or
assets in question and that is required to be repaid under the terms  thereof as
a result of such Asset Sale.

     "Net  Insurance/Condemnation  Proceeds" means any Cash payments or proceeds
received  by  Company  or  any  of  its  Subsidiaries  (i)  under  any  business
interruption  or  casualty  insurance  policy  in  respect  of  a  covered  loss
thereunder  or (ii) as a result of the taking of any assets of Company or any of
its  Subsidiaries  by any  Person  pursuant  to the  power  of  eminent  domain,
condemnation  or  otherwise,  or  pursuant  to a sale of any  such  assets  to a
purchaser with such power under threat of such a taking, in each case net of any
actual  and  reasonable  documented  costs  incurred  by  Company  or any of its
Subsidiaries  in connection  with the  adjustment or settlement of any claims of
Company or such Subsidiary in respect thereof.

     "New York Prime Rate" means the rate that CIBC  announces from time to time
as its prime lending rate for Loans in Dollars to United States borrowers, as in
effect from time to time.  The New York Prime Rate is a reference  rate and does
not  necessarily  represent  the  lowest or best rate  actually  charged  to any
customer.  CIBC or any other Lender may make commercial  loans or other loans at
rates of interest at, above or below the New York Prime Rate.

     "Notes" means one or more of the Tranche A Term Notes, AXEL Series B Notes,
Revolving Notes or any combination thereof.

                                       22

<PAGE>

     "Notice of Borrowing" means a notice substantially in the form of Exhibit I
annexed  hereto  delivered  by  Company  to  Administrative  Agent  pursuant  to
subsection 2.1B with respect to a proposed borrowing.

     "Notice of  Conversion/Continuation"  means a notice  substantially  in the
form of Exhibit II annexed hereto delivered by Company to  Administrative  Agent
pursuant  to  subsection   2.2D  with  respect  to  a  proposed   conversion  or
continuation  of the  applicable  basis for  determining  the interest rate with
respect to the Loans specified therein.

     "Obligations" means all obligations of every nature of each Loan Party from
time to time owed to Agents,  Lenders  or any of them under the Loan  Documents,
whether for principal, interest, reimbursement of amounts drawn under Letters of
Credit, fees, expenses, indemnification or otherwise.

     "Officers' Certificate" means, as applied to any corporation, a certificate
executed  on  behalf of such  corporation  by its  chairman  of the board (if an
officer)  or  its  president  or one of its  vice  presidents  and by its  chief
financial  officer or its treasurer;  provided that every Officers'  Certificate
with respect to the compliance  with a condition  precedent to the making of any
Loans  hereunder  shall  include  (i) a  statement  that the officer or officers
making or giving such  Officers'  Certificate  have read such  condition and any
definitions or other provisions  contained in this Agreement  relating  thereto,
(ii) a statement  that,  in the opinion of the  signers,  they have made or have
caused to be made such  examination or  investigation  as is necessary to enable
them to express an informed opinion as to whether or not such condition has been
complied  with,  and (iii) a  statement  as to  whether,  in the  opinion of the
signers, such condition has been complied with.

     "Operating  Lease" means,  as applied to any Person,  any lease  (including
leases  that may be  terminated  by the  lessee  at any  time)  of any  property
(whether  real,  personal or mixed)  that is not a Capital  Lease other than any
such lease under which that Person is the lessor.

     "PBGC" means the Pension  Benefit  Guaranty  Corporation  or any  successor
thereto.

     "Pension Plan" means any U.S. Pension Plan or any Foreign Pension Plan.

     "Permitted  Acquisition"  means,  from and  after  the  Closing  Date,  any
acquisition by Company or any of its  Subsidiaries  of an equity interest in, or
all  or  substantially  all of the  assets  of,  or  any  smaller  portion  that
constitutes an operating  unit,  business unit,  technology unit or division of,
any Person as permitted pursuant to subsection 7.7(v).

     "Permitted  Encumbrances" means the following types of Liens (excluding any
such Lien  imposed  pursuant  to Section  401(a)(29)  or 412(n) of the  Internal
Revenue  Code or by ERISA,  any such Lien  relating to or imposed in  connection
with any  Environmental  Claim,  and any such Lien  expressly  prohibited by any
applicable terms of any of the Collateral Documents):

          (i) Liens for taxes, assessments or governmental charges or claims the
     payment of which is not, at the time, required by subsection 6.3;

                                       23
<PAGE>

          (ii) statutory Liens of landlords, statutory Liens of banks and rights
     of  set-off,   statutory  Liens  of  carriers,   warehousemen,   mechanics,
     repairmen, workmen and materialmen, and other Liens imposed by law, in each
     case  incurred in the  ordinary  course of business (a) for amounts not yet
     overdue or (b) for  amounts  that are  overdue and that (in the case of any
     such amounts  overdue for a period in excess of 5 days) are being contested
     in good faith by appropriate  proceedings,  so long as (1) such reserves or
     other  appropriate  provisions,  if any, as shall be required by GAAP shall
     have been  made for any such  contested  amounts,  and (2) in the case of a
     Lien  with  respect  to  any  portion  of  the  Collateral,   such  contest
     proceedings  conclusively  operate  to stay the sale of any  portion of the
     Collateral on account of such Lien;

          (iii)  Liens  incurred  or  deposits  made in the  ordinary  course of
     business in connection with workers'  compensation,  unemployment insurance
     and  other  types of  social  security,  or to secure  the  performance  of
     tenders,  statutory  obligations,  surety and appeal bonds,  bids,  leases,
     government  contracts,  trade  contracts,  performance and  return-of-money
     bonds and other  similar  obligations  (exclusive  of  obligations  for the
     payment of  borrowed  money),  so long as no  foreclosure,  sale or similar
     proceedings  have  been  commenced  with  respect  to  any  portion  of the
     Collateral on account thereof;

          (iv) any  attachment  or judgment  Lien not  constituting  an Event of
     Default under subsection 8.8;

          (v) leases or subleases  granted to third parties in  accordance  with
     any applicable terms of the Collateral Documents and not interfering in any
     material  respect with the  ordinary  conduct of the business of Company or
     any of its Subsidiaries or resulting in a material  diminution in the value
     of any Collateral as security for the Obligations;

          (vi) easements, rights-of-way,  restrictions, encroachments, and other
     minor  defects or  irregularities  in title,  in each case which do not and
     will not interfere in any material respect with the ordinary conduct of the
     business  of  Company  or any of its  Subsidiaries  or result in a material
     diminution in the value of any Collateral as security for the Obligations;

          (vii) any (a)  interest  or title of a lessor or  sublessor  under any
     lease permitted by subsection 7.9, (b) restriction or encumbrance  that the
     interest  or title of such  lessor or  sublessor  may be subject to, or (c)
     subordination  of the interest of the lessee or sublessee  under such lease
     to any restriction or encumbrance  referred to in the preceding clause (b),
     so  long as the  holder  of  such  restriction  or  encumbrance  agrees  to
     recognize the rights of such lessee or sublessee under such lease;

          (viii) Liens  arising from filing UCC  financing  statements  relating
     solely to leases permitted by this Agreement;

          (ix) Liens in favor of customs  and revenue  authorities  arising as a
     matter of law to secure  payment of customs  duties in connection  with the
     importation of goods;

          (x) any zoning or similar  law or right  reserved  to or vested in any
     governmental  office or agency to control or  regulate  the use of any real
     property;



                                       24
<PAGE>

          (xi) Liens against  owners' or  sublessors'  interest in any Leasehold
     Property;

          (xii) Liens securing obligations (other than obligations  representing
     Indebtedness  for borrowed money) under operating,  reciprocal  easement or
     similar  agreements  entered  into in the  ordinary  course of  business of
     Company and its Subsidiaries; and

          (xiii) licenses of patents, trademarks and other intellectual property
     rights granted by Company or any of its Subsidiaries in the ordinary course
     of business and not  interfering in any material  respect with the ordinary
     conduct of the business of Company or such Subsidiary.

     "Person"  means  and  includes  natural  persons,   corporations,   limited
partnerships,   general  partnerships,   limited  liability  companies,  limited
liability  partnerships,  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 (whether federal,
state or local,  domestic  or  foreign,  and  including  political  subdivisions
thereof) and agencies or other administrative or regulatory bodies thereof.

     "Pledged  Collateral"  means,  collectively,  the "Pledged  Collateral"  as
defined  in the  Company  Master  Pledge  Agreement  and the  Subsidiary  Pledge
Agreements  (U.S.) and any other share  certificates,  promissory notes or under
instruments   pledged  to  Administrative   Agent  pursuant  to  the  Collateral
Documents.

     "Plessey   Entities"   means,   collectively,   each  of  PSL,   MEDL,  AEI
Semiconductors  Limited and GEC Plessey Semiconductors Inc. (to be renamed Mitel
Semiconductor  Americas Inc. as of the Closing  Date) which  companies and their
respective  Subsidiaries  are to be acquired by Company from Seller  pursuant to
the Acquisition Agreement.

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

     "Pro Rata Share" means (i) with respect to all payments,  computations  and
other matters  relating to the Tranche A Term Loan  Commitments or the Tranche A
Term Loan of any Lender,  the percentage  obtained by dividing (x) the Tranche A
Term  Loan  Exposure  of that  Lender by (y) the  aggregate  Tranche A Term Loan
Exposure of all Lenders,  (ii) with respect to all  payments,  computations  and
other matters  relating to the AXEL Series B Commitments or the AXEL Series B of
any Lender,  the percentage  obtained by dividing (x) the AXEL Series B Exposure
of that Lender by (y) the aggregate AXEL Series B Exposure of all Lenders, (iii)
with respect to all payments,  computations  and other  matters  relating to the
Revolving Loan Commitment or the Revolving Loans of any Lender or any Letters of
Credit  issued  or  participations  therein  purchased  by  any  Lender  or  any
participations  in any Swing Line Loans purchased by any Lender,  the percentage
obtained by dividing (x) the  Revolving  Loan Exposure of that Lender by (y) the
aggregate  Revolving  Loan  Exposure  of all  Lenders,  and (iv)  for all  other
purposes with respect to each Lender,  the  percentage  obtained by dividing (x)
the sum of the Tranche A Term Loan  Exposure of that Lender plus the AXEL Series
B Exposure of that Lender plus the Revolving Loan Exposure of that Lender by (y)
the sum of the  aggregate  Tranche A Term Loan  Exposure of all Lenders plus the
aggregate  AXEL Series B Exposure of all Lenders  plus the  aggregate  Revolving
Loan Exposure of all Lenders, in any such case as the applicable  percentage may
be adjusted


                                       25
<PAGE>

by assignments permitted pursuant to subsection 10.1. The initial Pro Rata Share
of each Lender for purposes of each of clauses (i), (ii),  (iii) and (iv) of the
preceding sentence is set forth opposite the name of that Lender in Schedule 2.1
annexed hereto.

     "PSL" means Plessey  Semiconductors  Limited, a company  incorporated under
the laws of England and Wales.

     "PTO" means the United States Patent and Trademark  Office or any successor
or  substitute  office in which  filings  are  necessary  or, in the  opinion of
Administrative  Agent,  desirable in order to create or perfect  Liens on any IP
Collateral.

     "Recorded  Leasehold  Interest" means a Leasehold  Property with respect to
which a Record Document (as hereinafter defined) has been recorded in all places
necessary or desirable,  in Administrative  Agent's reasonable judgment, to give
constructive  notice of such Leasehold  Property to  third-party  purchasers and
encumbrancers  of the affected real property.  For purposes of this  definition,
the term "Record  Document" means, with respect to any Leasehold  Property,  (a)
the lease evidencing such Leasehold Property or a memorandum  thereof,  executed
and acknowledged by the owner of the affected real property,  as lessor,  or (b)
if such  Leasehold  Property  was  acquired  or  subleased  from the holder of a
Recorded  Leasehold  Interest,  the applicable  assignment or sublease document,
executed and  acknowledged  by such holder,  in each case in form  sufficient to
give such constructive  notice upon recordation and otherwise in form reasonably
satisfactory to Administrative Agent.

     "Real Property  Asset" means,  at any time of  determination,  any interest
then owned by any Loan Party in any real property.

     "Register" has the meaning assigned to that term in subsection 2.1D.

     "Regulation D" means  Regulation D of the Board of Governors of the Federal
Reserve System, as in effect from time to time.

     "Reimbursement  Date" has the meaning  assigned to that term in  subsection
3.3B.

     "Refunded  Swing  Line  Loans"  has the  meaning  assigned  to that term in
subsection 2.1A(iv).

     "Related Agreements" means,  collectively,  the Acquisition Agreement,  the
IntraGroup Loan Agreement and the Discounted Note Documents.

     "Release" means any release, spill, emission,  leaking,  pumping,  pouring,
injection, escaping, deposit, disposal, discharge,  dispersal, dumping, leaching
or  migration  of  Hazardous  Materials  into the indoor or outdoor  environment
(including  the  abandonment  or disposal of any  barrels,  containers  or other
closed receptacles  containing any Hazardous Materials),  including the movement
of any Hazardous Materials through the air, soil, surface water or groundwater.

     "Request for Issuance of Letter of Credit" means a notice  substantially in
the form of Exhibit III annexed  hereto  delivered by Company to  Administrative
Agent pursuant to subsection  3.1B(i) with respect to the proposed issuance of a
Letter of Credit.



                                       26
<PAGE>

     "Requisite Class Lenders" means, at any time of  determination  (i) for the
Class of Lenders having Tranche A Term Loan Exposure,  Lenders having or holding
at least 51% of the aggregate Tranche A Term Loan Exposure of all Lenders,  (ii)
for the Class of Lenders  having  Revolving  Loan  Exposure,  Lenders  having or
holding at least 51% of the aggregate Revolving Loan Exposure of all Lenders and
(iii) for the Class of Lenders having AXEL Series B Exposure,  Lenders having or
holding at least 51% of the aggregate AXEL Series B Exposure of all Lenders.

     "Requisite Lenders" means Lenders having or holding at least 51% of the sum
of the aggregate  Tranche A Term Loan Exposure of all Lenders plus the aggregate
AXEL Series B Exposure of all Lenders plus the aggregate Revolving Loan Exposure
of all Lenders;  provided,  however,  that during the period  commencing  on the
Closing  Date and  continuing  until such time as GSCP and Goldman  Sachs Canada
Credit Partners Co., collectively hold less than 51% of the sum of the aggregate
Tranche A Term Loan  Exposure of all Lenders  plus the  aggregate  AXEL Series B
Exposure  of all  Lenders  plus the  aggregate  Revolving  Loan  Exposure of all
Lenders, "Requisite Lenders" shall mean all Lenders.

     "Restricted  Junior Payment" means (i) any dividend or other  distribution,
direct or  indirect,  on  account of any shares of any class of stock of Company
now or hereafter outstanding, except a dividend payable solely in shares of that
class of stock to the holders of that class,  (ii) any  redemption,  retirement,
sinking fund or similar payment, purchase or other acquisition for value, direct
or  indirect,  of any shares of any class of stock of Company  now or  hereafter
outstanding,  (iii) 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 of  Company  now or  hereafter  outstanding,  and (iv) any  payment  or
prepayment  of principal  of,  premium,  if any, or interest on, or  redemption,
purchase,  retirement,  defeasance (including in-substance or legal defeasance),
sinking fund or similar payment with respect to, any Subordinated Indebtedness.

     "Revolving  Loan  Commitment"  means  the  commitment  of a Lender  to make
Revolving Loans to Company pursuant to subsection 2.1A(iii), and "Revolving Loan
Commitments" means such commitments of all Lenders in the aggregate.

     "Revolving Loan Commitment Termination Date" means February 12, 2003.

     "Revolving Loan Exposure" means,  with respect to any Lender as of any date
of determination (i) prior to the termination of the Revolving Loan Commitments,
that Lender's  Revolving Loan  Commitment and (ii) after the  termination of the
Revolving Loan Commitments,  the sum of (a) the aggregate  outstanding principal
amount of the  Revolving  Loans of that Lender plus (b) in the event that Lender
is an Issuing  Lender,  the  aggregate  Letter of Credit Usage in respect of all
Letters of Credit issued by that Lender (in each case net of any  participations
purchased  by other  Lenders  in such  Letters  of  Credit  or any  unreimbursed
drawings  thereunder)  plus  (c)  the  aggregate  amount  of all  participations
purchased  by  that  Lender  in  any  outstanding   Letters  of  Credit  or  any
unreimbursed  drawings under any Letters of Credit plus (d) in the case of Swing
Line Lender, the aggregate  outstanding principal amount of all Swing Line Loans
(net of any  participations  therein  purchased by other  Lenders)  plus (e) the
aggregate  amount  of  all  participations  purchased  by  that  Lender  in  any
outstanding Swing Line Loans.

     "Revolving  Loans"  means the Loans made by Lenders to Company  pursuant


                                       27
<PAGE>

to subsection 2.1A(iii).

     "Revolving  Notes" means any promissory notes of Company issued pursuant to
subsection 2.1E to evidence the Revolving Loans of any Lenders, substantially in
the form of Exhibit VI annexed hereto,  as they may be amended,  supplemented or
otherwise modified from time to time.

     "Securities" means any stock, shares,  partnership interests,  voting trust
certificates,  certificates of interest or participation  in any  profit-sharing
agreement or arrangement,  options, warrants, bonds, debentures, notes, or other
evidences of indebtedness,  secured or unsecured,  convertible,  subordinated or
otherwise,  or in general any instruments  commonly known as "securities" or any
certificates  of  interest,  shares or  participations  in  temporary or interim
certificates  for the purchase or acquisition  of, or any right to subscribe to,
purchase or acquire, any of the foregoing.

     "Securities  Act" means the Securities Act of 1933, as amended from time to
time, and any successor statute.

     "Seller" means The General Electric  Company,  P.L.C., a company  organized
under the laws of England and Wales.

     "Solvent"  means,  with  respect  to any  Person,  that  as of the  date of
determination  both (A) (i) the then fair saleable value of the property of such
Person is (y) greater than the total amount of liabilities (including contingent
liabilities)  of such  Person  and (z) not less  than the  amount  that  will be
required to pay the probable liabilities on such Person's then existing debts as
they become  absolute and matured  considering  all financing  alternatives  and
potential asset sales  reasonably  available to such Person;  (ii) such Person's
capital  is  not  unreasonably   small  in  relation  to  its  business  or  any
contemplated or undertaken transaction; and (iii) such Person does not intend to
incur, or believe (nor should it reasonably  believe) that it will incur,  debts
beyond its ability to pay such debts as they become due;  and (B) such Person is
"solvent"  within the meaning given that term and similar terms under applicable
laws relating to  fraudulent  transfers  and  conveyances.  For purposes of this
definition, the amount of any contingent liability at any time shall be computed
as the amount that, in light of all of the facts and  circumstances  existing at
such time,  represents  the amount that can  reasonably be expected to become an
actual or matured liability.

     "Standby  Letter of Credit"  means any standby  letter of credit or similar
instrument  issued for the purpose of supporting (i)  Indebtedness of Company or
any of its Subsidiaries in respect of industrial revenue or development bonds or
financings,  (ii)  workers'  compensation  liabilities  of Company or any of its
Subsidiaries, (iii) the obligations of third party insurers of Company or any of
its  Subsidiaries  arising by virtue of the laws of any  jurisdiction  requiring
third  party  insurers,  (iv)  obligations  with  respect to  Capital  Leases or
Operating  Leases of Company or any of its  Subsidiaries,  and (v)  performance,
payment, deposit or surety obligations of Company or any of its Subsidiaries, in
any case if required by law or governmental  rule or regulation or in accordance
with custom and  practice in the  industry;  provided  that  Standby  Letters of
Credit may not be issued for the purpose of supporting (a) trade payables or (b)
any Indebtedness constituting "antecedent debt" (as that term is used in Section
547 of the Bankruptcy Code).

     "Subordinated  Indebtedness" means any Indebtedness of Company subordinated
in right of payment to the  Obligations  pursuant  to  documentation  containing


                                       28
<PAGE>

maturities, amortization schedules, covenants, defaults, remedies, subordination
provisions  and  other  material  terms in form and  substance  satisfactory  to
Administrative Agent and Requisite Lenders.

     "Subsidiary"   means,   with  respect  to  any  Person,   any  corporation,
partnership,  limited  liability  company,  association,  joint venture or other
business  entity of which more than 50% of the total  voting  power of shares of
stock or other ownership interests entitled (without regard to the occurrence of
any  contingency)  to vote in the  election  of the Person or  Persons  (whether
directors,  managers,  trustees or other Persons  performing  similar functions)
having the power to direct or cause the direction of the management and policies
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.

     "Subsidiary  Guarantor"  means any  Subsidiary of Company that executes and
delivers a counterpart  to any Guaranty on the Closing Date or from time to time
thereafter pursuant to subsection 6.8.

     "Subsidiary  Guaranty" means the Subsidiary Guaranty executed and delivered
by existing  Subsidiaries  of Company on the Closing Date and to be executed and
delivered by additional  Subsidiaries of Company from time to time thereafter in
accordance with subsection 6.8, substantially in the form of Exhibit XIX annexed
hereto.

     "Subsidiary Pledge Agreement (U.S.)" means each Subsidiary Pledge Agreement
(U.S.) executed and delivered by an existing Subsidiary Guarantor on the Closing
Date or executed and delivered by any additional  Subsidiary Guarantor from time
to time thereafter in accordance with subsection 6.8, in each case substantially
in the form of Exhibit XX annexed  hereto,  and  "Subsidiary  Pledge  Agreements
(U.S.)" means all such Subsidiary Pledge Agreements, collectively.

     "Subsidiary  Patent and  Trademark  Security  Agreement  (U.S.)" means each
Subsidiary Patent and Trademark Security Agreement (U.S.) executed and delivered
by an  existing  Subsidiary  Guarantor  on the  Closing  Date  or  executed  and
delivered by any additional Subsidiary Guarantor from time to time thereafter in
accordance  with  subsection  6.8,  in each  case  substantially  in the form of
Exhibit XXII annexed  hereto,  and  "Subsidiary  Patent and  Trademark  Security
Agreements  (U.S.)"  means all such  Subsidiary  Patent and  Trademark  Security
Agreements (U.S.), collectively.

     "Subsidiary  Security  Agreement  (U.S.)"  means each  Subsidiary  Security
Agreement (U.S.) executed and delivered by an existing  Subsidiary  Guarantor on
the  Closing  Date  or  executed  and  delivered  by any  additional  Subsidiary
Guarantor from time to time  thereafter in accordance  with  subsection  6.8, in
each  case  substantially  in the  form  of  Exhibit  XXI  annexed  hereto,  and
"Subsidiary  Security  Agreements  (U.S.)"  means all such  Subsidiary  Security
Agreements (U.S.), collectively.

     "Supplemental  Collateral  Agent" has the meaning  assigned to that term in
subsection 9.1D.

     "Swing  Line  Lender"  means  CIBC,  or any Person  serving as a  successor
Administrative Agent hereunder, in its capacity as Swing Line Lender hereunder.

     "Swing Line Loan  Commitment"  means the commitment of Swing Line


                                       29
<PAGE>

Lender to make Swing Line Loans to Company pursuant to subsection 2.1A(iv).

     "Swing  Line  Loans"  means the Loans made by Swing Line  Lender to Company
pursuant to subsection 2.1A(iv).

     "Swing Line Note" means any promissory  note of Company issued  pursuant to
subsection  2.1E to  evidence  the  Swing  Line  Loans  of  Swing  Line  Lender,
substantially in the form of Exhibit VI-B annexed hereto,  as it may be amended,
supplemented or otherwise modified from time to time.

     "Syndication   Agent"  has  the  meaning  assigned  to  that  term  in  the
introduction to this Agreement.

     "Tax" or "Taxes"  means any  present or future  tax,  levy,  impost,  duty,
charge,  fee,  deduction or  withholding of any nature and whatever  called,  by
whomsoever, on whomsoever and wherever imposed, levied,  collected,  withheld or
assessed and all related liabilities.

     "Term Loans"  means,  collectively,  the Tranche A Term Loans and the AXELs
Series B.

     "Term  Notes"  means,  collectively,  the Tranche A Term Notes and the AXEL
Series B Notes.

     "Title Company" means, collectively, Chicago Title Insurance Company, Ticor
Title  Insurance  Company  and/or one or more other  title  insurance  companies
reasonably satisfactory to Administrative Agent.

     "Total Utilization of Revolving Loan Commitments"  means, as at any date of
determination,  the sum of (i) the aggregate principal amount of all outstanding
Revolving Loans (other than Revolving Loans made for the purpose of repaying any
Refunded Swing Line Loans or reimbursing  the applicable  Issuing Lender for any
amount  drawn under any Letter of Credit but not yet so  applied)  plus (ii) the
Equivalent  U.S. $ Amount of the aggregate  principal  amount of all outstanding
Swing Line Loans plus (iii) the Letter of Credit Usage.

     "Tranche A Term Loan Commitment" means the commitment of a Lender to make a
Tranche A Term Loan to Company  pursuant to subsection  2.1A(i),  and "Tranche A
Term Loan Commitments" means such commitments of all Lenders in the aggregate.

     "Tranche A Term Loan Exposure" means,  with respect to any Lender as of any
date of determination (i) prior to the funding of the Tranche A Term Loans, that
Lender's  Tranche A Term Loan  Commitment  and (ii)  after  the  funding  of the
Tranche A Term Loans,  the  outstanding  principal  amount of the Tranche A Term
Loan of that Lender.

     "Tranche A Term Loans" means the Loans made by Lenders to Company  pursuant
to subsection 2.1A(i).

     "Tranche  A Term  Notes"  means  any  promissory  notes of  Company  issued
pursuant to subsection 2.1E to evidence the Tranche A Term Loans of any Lenders,
substantially in the form of Exhibit IV annexed hereto,  as they may be amended,


                                       30
<PAGE>

supplemented or otherwise modified from time to time.

     "Transaction  Costs" means the fees,  costs and expenses payable by Company
on or before the Closing Date in connection with the  transactions  contemplated
by the Loan Documents and the Related Agreements.

     "UCC"  means the  Uniform  Commercial  Code (or any  similar or  equivalent
legislation) as in effect in any applicable jurisdiction.

     "U.K.  Guaranty and  Debenture"  means the Guarantee  and Debenture  (U.K.)
executed and  delivered by Mitel  Telecom on the Closing Date and to be executed
and  delivered  by  additional  U.K.  Subsidiaries  of Company from time to time
thereafter in  accordance  with  subsection  6.8,  substantially  in the form of
Exhibit XXIV annexed hereto.

     "U.K.  Pledge Agreement" means the Company Pledge Agreement (U.K.) executed
and  delivered  by Company on the  Closing  Date,  substantially  in the form of
Exhibit XXV annexed hereto.

     "U.K.  Plessey Entities" means PSL, AEI  Semiconductors  Limited,  MEDL, UK
Cablevision Limited and GEC Plessey Semiconductor  Overseas Limited, each a U.K.
Subsidiary of Company after giving effect to the Acquisition.

     "U.K.  Subsidiary" means each Subsidiary of Company  incorporated under the
laws of England and Wales, Scotland or Northern Ireland.

     "U.S.  Employee Benefit Plan" means any "employee  benefit plan" as defined
in  Section  3(3) of  ERISA  which is or was  maintained  or  contributed  to by
Company,  any of its Subsidiaries or any of their  respective ERISA  Affiliates,
which is not exempted by Section 4(b)(4) of ERISA.

     "U.S.  GAAP" means,  subject to the limitations on the application  thereof
set forth in subsection 1.2, generally accepted accounting  principles set forth
in  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 or in such other
statements by such other entity as may be approved by a  significant  segment of
the  accounting  profession,  in each  case as the  same are  applicable  to the
circumstances as of the date of determination.

     "U.S.  Pension Plan" means any U.S.  Employee  Benefit  Plan,  other than a
Multiemployer Plan, which is subject to Section 412 of the Internal Revenue Code
or Section 302 of ERISA.

                                       31
<PAGE>

1.2  Accounting  Terms;  Utilization of GAAP for Purposes of Calculations  Under
     Agreement.

     Except as otherwise  expressly  provided in this Agreement,  all accounting
terms not otherwise  defined herein shall have the meanings  assigned to them in
conformity with GAAP.  Financial statements and other information required to be
delivered by Company to Lenders  pursuant to clauses (i), (ii), (iii) and (xiii)
of subsection 6.1 shall be prepared in accordance  with GAAP as in effect at the
time of  such  preparation  (and  delivered  together  with  the  reconciliation
statements provided for in subsection  6.1(v)).  Calculations in connection with
the definitions,  covenants and other provisions of this Agreement shall utilize
accounting  principles and policies in conformity with those used to prepare the
financial statements referred to in subsection 5.3.

1.3  Other Definitional Provisions and Rules of Construction.

     A. Any of the terms  defined  herein  may,  unless  the  context  otherwise
requires, be used in the singular or the plural, depending on the reference.

     B.  References to  "Sections"  and  "subsections"  shall be to Sections and
subsections,  respectively,  of this  Agreement  unless  otherwise  specifically
provided.

     C. The use herein of the word "include" or "including",  when following any
general  statement,  term or  matter,  shall  not be  construed  to  limit  such
statement, term or matter to the specific items or matters set forth immediately
following such word or to similar items or matters,  whether or not  nonlimiting
language  (such as  "without  limitation"  or "but not  limited  to" or words of
similar  import) is used with reference  thereto,  but rather shall be deemed to
refer to all other items or matters that fall within the broadest possible scope
of such general statement, term or matter.

     D. Each reference  herein to any Loan Document  (including to any such Loan
Document as it may be  separately  defined  herein) shall be deemed to include a
reference  to such  document as it may be  amended,  supplemented  or  otherwise
modified from time to time.

                                   SECTION 2.
                   AMOUNTS AND TERMS OF COMMITMENTS AND LOANS

2.1  Commitments; Making of Loans; the Register; Optional Notes.

     A.  Commitments.  Subject to the terms and conditions of this Agreement and
in reliance upon the representations and warranties of Company herein set forth,
each Lender hereby  severally  agrees to make the Loans described in subsections
2.1A(i),  2.1A(ii) and 2.1A(iii) and Swing Line Lender hereby agrees to make the
Loans described in subsection 2.1A(iv).

          (i) Tranche A Term  Loans.  Each  Lender  severally  agrees to lend to
     Company on the Closing Date an amount not  exceeding  its Pro Rata Share of
     the aggregate  amount of the Tranche A Term Loan Commitments to be used for
     the purposes  identified  in subsection  2.5A.  The amount of each Lender's
     Tranche A


                                       32

<PAGE>

     Term Loan Commitment is set forth opposite its name on Schedule 2.1 annexed
     hereto and the aggregate  amount of the Tranche A Term Loan  Commitments is
     $85,000,000;  provided that the Tranche A Term Loan  Commitments of Lenders
     shall be adjusted to give effect to any  assignments  of the Tranche A Term
     Loan Commitments pursuant to subsection 10.1B. Each Lender's Tranche A Term
     Loan  Commitment  shall expire  immediately  and without  further action on
     February  20,  1998 if the  Tranche A Term  Loans are not made on or before
     that date.  Company  may make only one  borrowing  under the Tranche A Term
     Loan  Commitments.  Amounts  borrowed  under this  subsection  2.1A(i)  and
     subsequently repaid or prepaid may not be reborrowed.

          (ii) AXELs Series B. Each Lender  severally  agrees to lend to Company
     on the  Closing  Date an amount  not  exceeding  its Pro Rata  Share of the
     aggregate  amount  of the  AXEL  Series  B  Commitments  to be used for the
     purposes  identified in subsection  2.5A.  The amount of each Lender's AXEL
     Series B Commitment is set forth  opposite its name on Schedule 2.1 annexed
     hereto  and the  aggregate  amount  of the  AXEL  Series B  Commitments  is
     $150,000,000;  provided that the AXEL Series B Commitments of Lenders shall
     be  adjusted  to give  effect  to any  assignments  of the  AXEL  Series  B
     Commitments  pursuant to  subsection  10.1B.  Each  Lender's  AXEL Series B
     Commitment shall expire  immediately and without further action on February
     20, 1998 if the AXELs Series B are not made on or before that date. Company
     may make only one borrowing  under the AXEL Series B  Commitments.  Amounts
     borrowed under this subsection  2.1A(i) and subsequently  repaid or prepaid
     may not be reborrowed.

          (iii) Revolving Loans.  Each Lender severally  agrees,  subject to the
     limitations set forth below with respect to the maximum amount of Revolving
     Loans  permitted to be  outstanding  from time to time,  to lend to Company
     from time to time during the period from the Closing Date to but  excluding
     the Revolving  Loan  Commitment  Termination  Date an aggregate  amount not
     exceeding its Pro Rata Share of the aggregate  amount of the Revolving Loan
     Commitments to be used for the purposes  identified in subsection 2.5B. The
     original  amount of each Lender's  Revolving  Loan  Commitment is set forth
     opposite its name on Schedule 2.1 annexed hereto and the aggregate original
     amount of the Revolving Loan Commitments is $75,000,000;  provided that the
     Revolving  Loan  Commitments of Lenders shall be adjusted to give effect to
     any  assignments of the Revolving Loan  Commitments  pursuant to subsection
     10.1B;  and  provided,  further  that  the  amount  of the  Revolving  Loan
     Commitments  shall  be  reduced  from  time to time  by the  amount  of any
     reductions  thereto made pursuant to  subsections  2.4B(ii) and  2.4B(iii).
     Each Lender's  Revolving Loan Commitment shall expire on the Revolving Loan
     Commitment  Termination  Date and all Revolving Loans and all other amounts
     owed hereunder  with respect to the Revolving  Loans and the Revolving Loan
     Commitments  shall be paid in full no later than that date;  provided  that
     each  Lender's  Revolving  Loan  Commitment  shall expire  immediately  and
     without  further action on February 20, 1998 if the Term Loans are not made
     on or before that date.  Amounts  borrowed under this subsection  2.1A(iii)
     may be repaid and reborrowed to but excluding the Revolving Loan Commitment
     Termination Date.


                                       33

<PAGE>

          Anything contained in this Agreement to the contrary  notwithstanding,
     the Revolving Loans and the Revolving Loan Commitments  shall be subject to
     the  limitation  that in no event shall the Total  Utilization of Revolving
     Loan  Commitments at any time exceed the Revolving Loan Commitments then in
     effect.

          (iv) Swing Line Loans. Swing Line Lender hereby agrees, subject to the
     limitations  set forth below with  respect to the  maximum  amount of Swing
     Line Loans permitted to be outstanding from time to time, to make a portion
     of the Revolving  Loan  Commitments  available to Company from time to time
     during the period from the Closing Date to but excluding the Revolving Loan
     Commitment  Termination  Date by making  Swing  Line Loans to Company in an
     aggregate amount not exceeding the amount of the Swing Line Loan Commitment
     to be used for the purposes identified in subsection 2.5B,  notwithstanding
     the fact that such  Swing  Line  Loans,  when  aggregated  with  Swing Line
     Lender's outstanding Revolving Loans and Swing Line Lender's Pro Rata Share
     of the  Letter of Credit  Usage  then in  effect,  may  exceed  Swing  Line
     Lender's Revolving Loan Commitment;  provided,  however, that, upon receipt
     by Swing Line Lender of a notice from Administrative Agent that one or more
     of the  applicable  conditions  specified in subsection  4.1 or 4.2 are not
     then  satisfied,  no further  Swing Line Loans shall be made.  The original
     amount of the Swing Line Loan Commitment is Cdn. $5,000,000;  provided that
     any reduction of the Revolving Loan Commitments made pursuant to subsection
     2.4B(ii)  or  2.4B(iii)   which  reduces  the  aggregate   Revolving   Loan
     Commitments  to an amount  less than the then  current  amount of the Swing
     Line Loan Commitment shall result in an automatic  corresponding  reduction
     of the Swing  Line Loan  Commitment  to the  amount of the  Revolving  Loan
     Commitments,  as so  reduced,  without  any  further  action on the part of
     Company,  any Agent or Swing Line  Lender.  The Swing Line Loan  Commitment
     shall expire on the  Revolving  Loan  Commitment  Termination  Date and all
     Swing Line Loans and all other amounts owed  hereunder  with respect to the
     Swing  Line Loans  shall be paid in full no later than that date;  provided
     that the Swing Line Loan  Commitment  shall expire  immediately and without
     further  action on  February  20, 1998 if the Term Loans are not made on or
     before that date.  Amounts  borrowed under this subsection  2.1A(iv) may be
     repaid and  reborrowed  to but  excluding  the  Revolving  Loan  Commitment
     Termination Date.

          Anything contained in this Agreement to the contrary  notwithstanding,
     the Swing Line Loans and the Swing Line Loan Commitment shall be subject to
     the  limitation  that in no event shall the Total  Utilization of Revolving
     Loan  Commitments at any time exceed the Revolving Loan Commitments then in
     effect.

          With  respect to any Swing Line Loans which have not been  voluntarily
     prepaid by Company pursuant to subsection  2.4B(i),  Swing Line Lender may,
     at any time in its sole and absolute discretion,  deliver to Administrative
     Agent (with a copy to Company),  no later than 10:00 A.M. (Toronto time) on
     the first  Business Day in advance of the proposed  Funding  Date, a notice
     (which  shall be  deemed  to be a Notice  of  Borrowing  given by  Company)
     requesting  Lenders having  Revolving Loan Exposure to make Revolving Loans
     that are Base Rate  Loans on such  Funding  Date in an amount  equal to the
     Equivalent U.S. $ Amount of such Swing Line Loans (the "Refunded Swing Line
     Loans")  outstanding  on the date such  notice is given  which  Swing  Line
     Lender  requests  such  Lenders  to  prepay.  Anything  contained  in  this
     Agreement  to the  contrary  notwithstanding,  (i)  the  proceeds  of  such
     Revolving  Loans


                                       34
<PAGE>

     made by such  Lenders  other than Swing Line  Lender  shall be  immediately
     converted  by  Administrative  Agent to the  Equivalent  Cdn.  $ Amount and
     delivered by Administrative Agent to Swing Line Lender (and not to Company)
     and applied to repay a  corresponding  portion of the  Refunded  Swing Line
     Loans  and  (ii) on the day such  Revolving  Loans  are  made,  Swing  Line
     Lender's Pro Rata Share of the Refunded Swing Line Loans shall be deemed to
     be paid with the  proceeds of a Revolving  Loan made by Swing Line  Lender,
     and such  portion  of the Swing  Line  Loans  deemed to be so paid shall no
     longer be  outstanding as Swing Line Loans and shall no longer be due under
     the Swing  Line  Note,  if any,  of Swing  Line  Lender  but shall  instead
     constitute  part of Swing Line  Lender's  outstanding  Revolving  Loans and
     shall be due  under the  Revolving  Note,  if any,  of Swing  Line  Lender.
     Company  hereby  authorizes  Administrative  Agent and Swing Line Lender to
     charge Company's accounts with  Administrative  Agent and Swing Line Lender
     (up to the amount  available in each such account) in order to  immediately
     pay Swing Line  Lender the amount of the  Refunded  Swing Line Loans to the
     extent  the  proceeds  of  such  Revolving  Loans  made by  Lenders  having
     Revolving Loan Exposure,  including the Revolving Loan deemed to be made by
     Swing Line Lender,  are not  sufficient to repay in full the Refunded Swing
     Line  Loans.  If any portion of any such amount paid (or deemed to be paid)
     to Swing Line Lender  should be  recovered  by or on behalf of Company from
     Swing Line Lender in bankruptcy, by assignment for the benefit of creditors
     or otherwise,  the loss of the amount so recovered  shall be ratably shared
     among all Lenders in the manner contemplated by subsection 10.5.

          If for any reason (a) Revolving Loans are not made upon the request of
     Swing Line Lender as provided in the immediately  preceding paragraph in an
     amount sufficient to repay any amounts owed to Swing Line Lender in respect
     of any outstanding  Swing Line Loans or (b) the Revolving Loan  Commitments
     are  terminated at a time when any Swing Line Loans are  outstanding,  each
     Lender having Revolving Loan Exposure shall be deemed to, and hereby agrees
     to, have purchased a participation  in Canadian Dollars in such outstanding
     Swing Line Loans in an amount equal to its Pro Rata Share  (calculated,  in
     the case of the foregoing clause (b), immediately prior to such termination
     of the Revolving Loan  Commitments) of the unpaid amount of such Swing Line
     Loans  together  with accrued  interest  thereon.  Upon one Business  Day's
     notice from Swing Line Lender, each such Lender shall deliver to Swing Line
     Lender an amount in Canadian Dollars equal to its respective  participation
     in same day funds at the Funding and  Payment  Office.  In order to further
     evidence such  participation (and without prejudice to the effectiveness of
     the participation provisions set forth above), each Lender having Revolving
     Loan Exposure  agrees to enter into a separate  participation  agreement at
     the  request  of  Swing  Line  Lender  in  form  and  substance  reasonably
     satisfactory  to Swing Line  Lender.  In the event any such Lender fails to
     make   available  to  Swing  Line  Lender  the  amount  of  such   Lender's
     participation  as provided in this  paragraph,  Swing Line Lender  shall be
     entitled to recover  such amount on demand from such Lender  together  with
     interest  thereon at the rate customarily used by Swing Line Lender for the
     correction of errors among banks for three  Business Days and thereafter at
     the Base Rate.  In the event  Swing Line  Lender  receives a payment of any
     amount in which other Lenders having Revolving Loan Exposure have purchased
     participations  as provided  in this  paragraph,  Swing Line  Lender  shall
     promptly  distribute  to each such other  Lender its Pro Rata Share of such
     payment.

          Anything  contained  herein  to  the  contrary  notwithstanding,   the
     obligation of


                                       35
<PAGE>

     each Lender having  Revolving Loan Exposure to make Revolving Loans for the
     purpose of repaying  any Refunded  Swing Line Loans  pursuant to the second
     preceding  paragraph  and each  such  Lender's  obligation  to  purchase  a
     participation  in any unpaid Swing Line Loans  pursuant to the  immediately
     preceding  paragraph shall be absolute and  unconditional  and shall not be
     affected by any  circumstance,  including  (a) any  set-off,  counterclaim,
     recoupment, defense or other right which such Lender may have against Swing
     Line Lender, Company or any other Person for any reason whatsoever; (b) the
     occurrence or  continuation  of an Event of Default or a Potential Event of
     Default;  (c) any adverse change in the business,  operations,  properties,
     assets,  condition  (financial or otherwise) or prospects of Company or any
     of its  Subsidiaries;  (d) any breach of this  Agreement  or any other Loan
     Document by any party thereto; or (e) any other circumstance,  happening or
     event whatsoever,  whether or not similar to any of the foregoing; provided
     that such obligations of each such Lender are subject to the condition that
     (X) Swing Line  Lender  believed  in good faith that all  conditions  under
     Section 4 to the  making of the  applicable  Refunded  Swing  Line Loans or
     other  unpaid Swing Line Loans,  as the case may be, were  satisfied at the
     time such Refunded Swing Line Loans or unpaid Swing Line Loans were made or
     (Y) the satisfaction of any such condition not satisfied had been waived in
     accordance with subsection 10.6 prior to or at the time such Refunded Swing
     Line Loans or other unpaid Swing Line Loans were made.

     B. Borrowing Mechanics. Tranche A Term Loans or AXELs Series B or Revolving
Loans made on any Funding Date (other than  Revolving  Loans made  pursuant to a
request by Swing Line Lender pursuant to subsection  2.1A(iv) for the purpose of
repaying  any  Refunded  Swing Line Loans or  Revolving  Loans made  pursuant to
subsection 3.3B for the purpose of reimbursing any Issuing Lender for the amount
of a drawing  under a Letter of  Credit  issued by it) shall be in an  aggregate
minimum amount of $5,000,000  and integral  multiples of $1,000,000 in excess of
that amount.  Whenever Company desires that Lenders make Term Loans or Revolving
Loans it shall  deliver to  Administrative  Agent a Notice of Borrowing no later
than 10:00 A.M.  (Toronto  time) at least three  Business Days in advance of the
proposed  Funding Date (in the case of a  Eurodollar  Rate Loan) or at least one
Business Day in advance of the proposed Funding Date (in the case of a Base Rate
Loan).  The Notice of  Borrowing  shall  specify (i) the  proposed  Funding Date
(which shall be a Business  Day),  (ii) the amount and type of Loans  requested,
(iii) with respect to any other Loans made during the Initial Period,  that such
Loans shall be Base Rate Loans,  (iii) in the case of  Revolving  Loans not made
during  the  Initial  Period,  whether  such  Loans  shall be Base Rate Loans or
Eurodollar  Rate  Loans,  (v) in the case of any Loans  requested  to be made as
Eurodollar Rate Loans, the initial Interest Period requested therefor,  and (vi)
in the case of Swing Line Loans that such Loans shall bear interest by reference
to the Canadian Prime Rate.  Term Loans and Revolving  Loans may be continued as
or  converted  into Base Rate  Loans and  Eurodollar  Rate  Loans in the  manner
provided in subsection 2.2D. In lieu of delivering the above-described Notice of
Borrowing,  Company  may give  Administrative  Agent  telephonic  notice  by the
required time of any proposed  borrowing  under this subsection  2.1B;  provided
that such notice shall be promptly  confirmed in writing by delivery of a Notice
of Borrowing to Administrative Agent on or before the applicable Funding Date.

     Whenever  Company desires that Swing Line Lender make a Swing Line Loan, it
shall  deliver to Agent a Notice of Borrowing no later than 12:00 Noon  (Toronto
time);  provided  that  Swing  Line  Loans  (i) may be made  on the  same  day's
telephone  request  by  Company  to  Administrative  Agent,  providing  the same
information  to  Administrative  Agent  as  would be  contained  in a Notice  of
Borrowing (which shall be deemed to have been


                                       36
<PAGE>

provided);  and (ii) shall be made by  Administrative  Agent without notice from
Company in respect of any overdraft in Company's  account with Swing Line Lender
or in connection  with Company's  "purchase card program" with Swing Line Lender
on Swing Line Lender's  customary  terms and  conditions  for such program.  All
Swing Line Loans shall be made by  Administrative  Agent in accordance  with the
terms  of  this   Agreement  and  Swing  Line   Lender's   usual  and  customary
documentation, if any, for the provision of swing line credit services.

     Neither  Administrative  Agent nor any Lender shall incur any  liability to
Company in acting upon any telephonic notice referred to in this subsection 2.1B
that  Administrative  Agent  believes in good faith to have been given by a duly
authorized  officer or other person authorized to borrow on behalf of Company or
for otherwise  acting in good faith under this subsection 2.1B, and upon funding
of Loans by Lenders  in  accordance  with this  Agreement  pursuant  to any such
telephonic notice Company shall have effected Loans hereunder.

     Company shall notify Administrative Agent prior to the funding of any Loans
in the event that any of the matters to which  Company is required to certify in
the  applicable  Notice of  Borrowing  is no longer  true and  correct as of the
applicable  Funding Date,  and the  acceptance by Company of the proceeds of any
Loans shall  constitute  a  re-certification  by Company,  as of the  applicable
Funding  Date,  as to the matters to which Company is required to certify in the
applicable Notice of Borrowing.

     Except as otherwise  provided in subsections  2.6B, 2.6C and 2.6G, a Notice
of Borrowing for a Eurodollar  Rate Loan (or telephonic  notice in lieu thereof)
shall be irrevocable on and after the related Interest Rate Determination  Date,
and Company shall be bound to make a borrowing in accordance therewith.



                                       37
<PAGE>

     C.  Disbursement  of Funds.  All Term Loans and Revolving  Loans under this
Agreement shall be made by Lenders  simultaneously and  proportionately to their
respective  Pro  Rata  Shares,  it  being  understood  that no  Lender  shall be
responsible  for  any  default  by any  other  Lender  in  that  other  Lender's
obligation to make a Loan  requested  hereunder nor shall the  Commitment of any
Lender to make the  particular  type of Loan requested be increased or decreased
as a result of a default by any other Lender in that other  Lender's  obligation
to make a Loan requested  hereunder.  Promptly  after receipt by  Administrative
Agent of a Notice of Borrowing pursuant to subsection 2.1B (or telephonic notice
in lieu  thereof),  Administrative  Agent shall notify each Lender or Swing Line
Lender, as the case may be of the proposed borrowing. Each Lender shall make the
amount of its Loan available to  Administrative  Agent not later than 12:00 Noon
(Toronto time) on the  applicable  Funding Date, and (other than with respect to
any Swing Line Loan made  without  notice from  Company  pursuant to  subsection
2.1B) Swing Line Lender  shall make the amount of its Swing Line Loan  available
to Administrative  Agent not later than 2:00 pm (Toronto time) on the applicable
Funding  Date,  in each case in same day funds in  Dollars,  at the  Funding and
Payment  Office.  Except as provided in subsection  2.1A(iv) or subsection  3.3B
with respect to  Revolving  Loans used to repay  Refunded  Swing Line Loan or to
reimburse  any  Issuing  Lender  for the  amount of a drawing  under a Letter of
Credit issued by it, upon  satisfaction  or waiver of the  conditions  precedent
specified in subsections 4.1 (in the case of Loans made on the Closing Date) and
4.2 (in the case of all Loans),  Administrative Agent shall make the proceeds of
such Loans  available  to Company on the  applicable  Funding Date by causing an
amount of same day funds in Dollars  (or with  respect to Swing Line Loans only,
in  Canadian  Dollars)  equal to the  proceeds  of all such  Loans  received  by
Administrative  Agent from Lenders or Swing Line Lender,  as the case may be, to
be credited to the account of Company at the Funding and Payment Office.

     Unless Administrative Agent shall have been notified by any Lender prior to
the  Funding  Date for any  Loans  that  such  Lender  does not  intend  to make
available to Administrative  Agent the amount of such Lender's Loan requested on
such  Funding  Date,  Administrative  Agent may assume that such Lender has made
such  amount  available  to  Administrative  Agent  on  such  Funding  Date  and
Administrative Agent may, in its sole discretion, but shall not be obligated to,
make available to Company a  corresponding  amount on such Funding Date. If such
corresponding  amount is not in fact made available to  Administrative  Agent by
such   Lender,   Administrative   Agent  shall  be  entitled  to  recover   such
corresponding  amount on demand from such Lender together with interest thereon,
for each day from  such  Funding  Date  until  the date  such  amount is paid to
Administrative  Agent, at the customary rate set by Administrative Agent for the
correction of errors among banks for three  Business Days and  thereafter at the
Base Rate. If such Lender does not pay such corresponding  amount forthwith upon
Administrative  Agent's  demand  therefor,  Administrative  Agent shall promptly
notify Company and Company shall  immediately pay such  corresponding  amount to
Administrative  Agent  together  with interest  thereon,  for each day from such
Funding Date until the date such amount is paid to Administrative  Agent, at the
rate  payable  under  this  Agreement  for  Base  Rate  Loans.  Nothing  in this
subsection  2.1C shall be deemed to relieve  any Lender from its  obligation  to
fulfill its  Commitments  hereunder or to prejudice  any rights that Company may
have against any Lender as a result of any default by such Lender hereunder.

                                       38

<PAGE>

     D.   The Register.

          (i) Administrative Agent shall maintain, at its address referred to in
     subsection  10.8, a register for the recordation of the names and addresses
     of Lenders and the  Commitments  and Loans of each Lender from time to time
     (the "Register"). The Register shall be available for inspection by Company
     or any Lender at any reasonable  time and from time to time upon reasonable
     prior notice.

          (ii)  Administrative  Agent shall record in the Register the Tranche A
     Term  Loan  Commitment,   AXEL  Series  B  Commitment  and  Revolving  Loan
     Commitment and the Tranche A Term Loan,  AXEL Series B and Revolving  Loans
     from time to time of each Lender,  the Swing Line Lone  Commitment  and the
     Swing Line Loans from time to time of Swing Line Lender, and each repayment
     or  prepayment  in respect of the  principal  amount of the  Tranche A Term
     Loan,  AXEL  Series B or  Revolving  Loans of each Lender or the Swing Line
     Loans of Swing Line Lender.  Any such  recordation  shall be conclusive and
     binding on Company and each Lender,  absent manifest  error;  provided that
     failure  to make any such  recordation,  or any error in such  recordation,
     shall not affect any  Lender's  Commitments  or  Company's  Obligations  in
     respect of any applicable Loans.

          (iii) Each Lender shall record on its internal records  (including any
     Notes  held by such  Lender)  the amount of the  Tranche A Term Loan,  AXEL
     Series B and each  Revolving  Loan made by it and each  payment  in respect
     thereof.  Any such recordation  shall be conclusive and binding on Company,
     absent manifest error;  provided that failure to make any such recordation,
     or any error in such recordation, shall not affect any Lender's Commitments
     or Company's  Obligations in respect of any applicable Loans; and provided,
     further that in the event of any inconsistency between the Register and any
     Lender's  records,  the  recordations  in the Register  shall govern and be
     conclusive and binding on such Lender, absent manifest error.

          (iv)  Company,  Administrative  Agent and Lenders shall deem and treat
     the Persons  listed as Lenders in the Register as the holders and owners of
     the  corresponding  Commitments  and Loans listed  therein for all purposes
     hereof,  and no assignment or transfer of any such Commitment or Loan shall
     be  effective,  in each  case  unless  and  until an  Assignment  Agreement
     effecting the  assignment  or transfer  thereof shall have been accepted by
     Administrative Agent and recorded in the Register as provided in subsection
     10.1B(ii). Prior to such recordation,  all amounts owed with respect to the
     applicable  Commitment  or Loan shall be owed to the  Lender  listed in the
     Register as the owner thereof, and any request, authority or consent of any
     Person who, at the time of making such request or giving such  authority or
     consent,  is listed in the  Register as a Lender  shall be  conclusive  and
     binding  on  any   subsequent   holder,   assignee  or  transferee  of  the
     corresponding Commitments or Loans.

          (v) Company hereby  designates CIBC to serve as Company's agent solely
     for purposes of  maintaining  the  Register as provided in this  subsection
     2.1D,  and Company  hereby  agrees that,  to the extent CIBC serves in such
     capacity,  CIBC  and  its  officers,   directors,   employees,  agents  and
     affiliates shall  constitute  Indemnitees for all purposes under subsection
     10.3.

     E.  Optional  Notes.  If so  requested  by any Lender by written  notice to
Company

                                       39
<PAGE>

(with a copy to  Administrative  Agent) at least two Business  Days prior to the
Closing Date or at any time  thereafter,  Company  shall  execute and deliver to
such Lender  (and/or,  if applicable and if so specified in such notice,  to any
Person who is an  assignee of such Lender  pursuant to  subsection  10.1) on the
Closing Date (or, if such notice is delivered  after the Closing Date,  promptly
after Company's receipt of such notice) a promissory note or promissory notes to
evidence such Lender's  Tranche A Term Loan,  AXEL Series B, Revolving  Loans or
Swing Line Loans, substantially in the form of Exhibit IV, Exhibit V, Exhibit VI
or Exhibit XXXII annexed hereto, respectively, with appropriate insertions.

2.2  Interest on the Loans.

     A. Rate of Interest.  Subject to the provisions of subsections 2.6 and 2.7,
each Term  Loan and each  Revolving  Loan  shall  bear  interest  on the  unpaid
principal  amount  thereof  from the date  made  through  maturity  (whether  by
acceleration or otherwise) at a rate determined by reference to the Base Rate or
the Adjusted  Eurodollar Rate. Subject to the provisions of subsection 2.7, each
Swing Line Loan shall bear interest on the unpaid  principal amount thereof from
the date made through maturity  (whether by acceleration or otherwise) at a rate
determined by reference to the Canadian  Prime Rate.  The  applicable  basis for
determining  the rate of interest with respect to any Term Loan or any Revolving
Loan shall be selected by Company initially at the time a Notice of Borrowing is
given with respect to such Loan pursuant to subsection  2.1B,  and the basis for
determining  the interest  rate with  respect to any Term Loan or any  Revolving
Loan may be changed from time to time pursuant to subsection 2.2D. If on any day
a Term Loan or Revolving  Loan is  outstanding  with respect to which notice has
not been delivered to Administrative  Agent in accordance with the terms of this
Agreement  specifying the applicable basis for determining the rate of interest,
then for that day that Loan shall bear  interest  determined by reference to the
Base Rate.

          (i) Subject to the provisions of subsections  2.2E and 2.7,  Tranche A
     Term Loans and  Revolving  Loans shall bear  interest  through  maturity as
     follows:

               (a) if a Base  Rate  Loan,  then at the sum of the Base Rate plus
          the Applicable Base Rate Margin for Tranche A Term Loans; or

               (b) if a  Eurodollar  Rate Loan,  then at the sum of the Adjusted
          Eurodollar Rate plus the Applicable Eurodollar Rate Margin for Tranche
          A Term Loans.

          (ii) Subject to the provisions of subsections  2.2E and 2.7, the AXELs
     Series B shall bear interest through maturity as follows:

               (a) if a Base  Rate  Loan,  then at the sum of the Base Rate plus
          the Applicable Base Rate Margin for AXELs Series B; or

               (b) if a  Eurodollar  Rate Loan,  then at the sum of the Adjusted
          Eurodollar  Rate plus the Applicable  Eurodollar Rate Margin for AXELs
          Series B.

          (iii) Subject to the provisions of subsections 2.2E and 2.7, the Swing
     Line Loans shall bear interest  through maturity at the sum of the Canadian
     Prime Rate plus the Applicable Base Rate Margin for Tranche A Term Loans.



                                       40
<PAGE>

     B. Interest Periods.  In connection with each Eurodollar Rate Loan, Company
may,   pursuant   to  the   applicable   Notice  of   Borrowing   or  Notice  of
Conversion/Continuation,  as the case may be, select an interest period (each an
"Interest  Period") to be applicable to such Loan,  which Interest  Period shall
be, at Company's option, either a one, two, three or six month period;  provided
that:

          (i) the initial  Interest  Period for any  Eurodollar  Rate Loan shall
     commence on the Funding Date in respect of such Loan, in the case of a Loan
     initially  made as a Eurodollar  Rate Loan, or on the date specified in the
     applicable  Notice  of  Conversion/Continuation,  in  the  case  of a  Loan
     converted to a Eurodollar Rate Loan;

          (ii) in the case of immediately successive Interest Periods applicable
     to a  Eurodollar  Rate  Loan  continued  as such  pursuant  to a Notice  of
     Conversion/Continuation,  each successive Interest Period shall commence on
     the day on which the next preceding Interest Period expires;

          (iii) if an Interest  Period would  otherwise  expire on a day that is
     not a  Business  Day,  such  Interest  Period  shall  expire  on  the  next
     succeeding  Business  Day;  provided  that,  if any  Interest  Period would
     otherwise  expire on a day that is not a  Business  Day but is a day of the
     month  after  which no  further  Business  Day occurs in such  month,  such
     Interest Period shall expire on the next preceding Business Day;

          (iv) 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 clause (v) of this subsection 2.2B, end on the last Business Day
     of a calendar month;

          (v) no Interest  Period  with  respect to any portion of the Tranche A
     Term Loans shall extend beyond  February 12, 2003, no Interest  Period with
     respect to any portion of the AXELs Series B shall extend  beyond  December
     26,  2003,  and no  Interest  Period  with  respect  to any  portion of the
     Revolving   Loans  shall  extend  beyond  the  Revolving  Loan   Commitment
     Termination Date;

          (vi) no Interest  Period with  respect to any portion of the Tranche A
     Term Loans or AXELs Series B shall extend beyond a date on which Company is
     required to make a  scheduled  payment of  principal  of the Tranche A Term
     Loans or AXELs  Series  B, as the  case may be,  unless  the sum of (a) the
     aggregate  principal  amount of Tranche A Term Loans or AXELs  Series B, as
     the case may be, that are Base Rate Loans plus (b) the aggregate  principal
     amount of Tranche A Term Loans or AXELs  Series B, as the case may be, that
     are Eurodollar Rate Loans with Interest  Periods expiring on or before such
     date  equals or exceeds  the  principal  amount  required to be paid on the
     Tranche A Term Loans or AXELs Series B, as the case may be, on such date;

          (vii) there shall be no more than five Interest Periods outstanding at
     any time; and

          (viii) in the event  Company  fails to specify an Interest  Period for
     any Eurodollar Rate Loan in the applicable Notice of Borrowing or Notice of
     Conversion/Continuation,  Company  shall  be  deemed  to have  selected  an
     Interest Period of one month.

                                       41
<PAGE>

     C.  Interest  Payments.  Subject  to the  provisions  of  subsection  2.2E,
interest  on each Loan  shall be  payable  in  arrears  on and to each  Interest
Payment Date  applicable to that Loan,  upon any prepayment of that Loan (to the
extent  accrued on the amount being  prepaid) and at maturity  (including  final
maturity);  provided  that in the event any Swing  Line  Loans or any  Revolving
Loans that are Base Rate  Loans are  prepaid  pursuant  to  subsection  2.4B(i),
interest accrued on such Swing Line Loans or Revolving Loans through the date of
such prepayment  shall be payable on the next succeeding  Interest  Payment Date
applicable to Swing Line Loans or Base Rate Loans, respectively (or, if earlier,
at final maturity).

     D. Conversion or Continuation. Subject to the provisions of subsection 2.6,
Company  shall have the option (i) to convert at any time all or any part of its
outstanding  Tranche A Term Loans,  AXELs Series B or  Revolving  Loans equal to
$5,000,000  and integral  multiples of  $1,000,000 in excess of that amount from
Loans bearing  interest at a rate  determined by reference to one basis to Loans
bearing  interest at a rate  determined by reference to an alternative  basis or
(ii) upon the expiration of any Interest Period  applicable to a Eurodollar Rate
Loan,  to  continue  all or any  portion  of such Loan equal to  $5,000,000  and
integral  multiples of $1,000,000 in excess of that amount as a Eurodollar  Rate
Loan; provided,  however, that a Eurodollar Rate Loan may only be converted into
a Base  Rate  Loan on the  expiration  date  of an  Interest  Period  applicable
thereto;  provided  further,  however,  that no Loan may be made as or converted
into a Eurodollar Rate Loan during the Initial Period.

     Company shall deliver a Notice of Conversion/Continuation to Administrative
Agent no later than  10:00  A.M.  (Toronto  time) at least one  Business  Day in
advance of the proposed  conversion  date (in the case of a conversion to a Base
Rate  Loan)  and at  least  three  Business  Days  in  advance  of the  proposed
conversion/continuation  date (in the case of a conversion to, or a continuation
of, a Eurodollar Rate Loan). A Notice of  Conversion/Continuation  shall specify
(i) the proposed  conversion/continuation  date (which shall be a Business Day),
(ii) the amount and type of the Loan to be converted/continued, (iii) the nature
of the proposed conversion/continuation, (iv) in the case of a conversion to, or
a continuation of, a Eurodollar Rate Loan, the requested  Interest  Period,  and
(v) in the case of a conversion  to, or a  continuation  of, a  Eurodollar  Rate
Loan, that no Potential Event of Default or Event of Default has occurred and is
continuing.    In   lieu   of   delivering   the   above-described   Notice   of
Conversion/Continuation, Company may give Administrative Agent telephonic notice
by  the  required  time  of  any  proposed  conversion/continuation  under  this
subsection  2.2D;  provided  that such  notice  shall be promptly  confirmed  in
writing by delivery  of a Notice of  Conversion/Continuation  to  Administrative
Agent on or before the proposed  conversion/continuation  date.  Upon receipt of
written or telephonic notice of any proposed  conversion/continuation under this
subsection  2.2D,  Administrative  Agent shall promptly  transmit such notice by
telefacsimile or telephone to each Lender.

     Neither  Administrative  Agent nor any Lender shall incur any  liability to
Company  in  acting  upon  any   telephonic   notice   referred  to  above  that
Administrative  Agent  believes  in good  faith  to have  been  given  by a duly
authorized officer or other person authorized to act on behalf of Company or for
otherwise  acting in good faith under this subsection  2.2D, and upon conversion
or continuation  of the applicable  basis for determining the interest rate with
respect to any Loans in  accordance  with this  Agreement  pursuant  to any such
telephonic  notice Company shall have effected a conversion or continuation,  as
the case may be, hereunder.

     Except as otherwise  provided in subsections  2.6B, 2.6C and 2.6G, a Notice
of


                                       42
<PAGE>

Conversion/Continuation for conversion to, or continuation of, a Eurodollar Rate
Loan (or  telephonic  notice in lieu thereof)  shall be irrevocable on and after
the related  Interest  Rate  Determination  Date,  and Company shall be bound to
effect a conversion or continuation in accordance therewith.

     E. Default Rate.  Upon the  occurrence and during the  continuation  of any
Event of Default, the outstanding principal amount of all Loans and any interest
payments  thereon not paid when due and any fees and other  amounts then due and
payable  hereunder,  shall  thereafter  bear interest  (including  post-petition
interest  in any  proceeding  under  the  Bankruptcy  Code or  other  applicable
bankruptcy  laws)  payable  upon  demand  (i) at a rate that is,  to the  extent
permitted  by  applicable  law,  2% per  annum in excess  of the  interest  rate
otherwise  payable at the time of the  occurrence of such Event of Default under
this Agreement with respect to the applicable Loans (or, in the case of any such
fees  and  other  amounts,  at a rate  which  is,  to the  extent  permitted  by
applicable  law, 2% per annum in excess of the interest rate  otherwise  payable
under this  Agreement  for Base Rate Loans) and (ii) to the extent the increased
rate under clause (i) above is not permitted by applicable  law, at the interest
rate  otherwise  payable at the time of the  occurrence of such Event of Default
under this Agreement  with respect to the  applicable  Loans (or, in the case of
any such fees and other amounts,  at the interest rate  otherwise  payable under
this  Agreement for Base Rate Loans);  provided  that, in the case of Eurodollar
Rate Loans, upon the expiration of the Interest Period in effect at the time any
Event of Default has  occurred and is  continuing,  such  Eurodollar  Rate Loans
shall  thereupon  become  Base Rate  Loans and shall  thereafter  bear  interest
payable  upon demand (a) to the extent  permitted  by  applicable  law at a rate
which is 2% per annum in excess of the interest  rate  otherwise  payable  under
this  Agreement  for Base Rate Loans and (b) to the extent  the  increased  rate
under clause (a) above is not permitted by applicable  law, at the interest rate
otherwise  payable  under  this  Agreement  for  Base  Rate  Loans.  Payment  or
acceptance of the increased  rates of interest  provided for in this  subsection
2.2E is not a permitted alternative to timely payment and shall not constitute a
waiver of any Event of Default  or  otherwise  prejudice  or limit any rights or
remedies of Administrative Agent or any Lender.

     F. Computation of Interest.  Interest on the Loans shall be computed (i) in
the case of Base Rate Loans and Swing Line Loans  bearing  interest by reference
to the Canadian  Prime Rate,  on the basis of a 365-day or 366-day  year, as the
case may be, and (ii) in the case of  Eurodollar  Rate Loans,  on the basis of a
360-day  year,  in each case for the actual number of days elapsed in the period
during  which it accrues.  In  computing  interest on any Loan,  the date of the
making of such 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 Eurodollar Rate
Loan,  the date of  conversion  of such  Eurodollar  Rate Loan to such Base Rate
Loan,  as the case may be,  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 Eurodollar Rate Loan, the
date of conversion of such Base Rate Loan to such  Eurodollar  Rate Loan, as the
case may be,  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.

     For the purposes of the Interest Act (Canada), (i) whenever any interest or
fee under this Agreement is calculated using a rate based on a year of 360 days,
such rate determined  pursuant to such calculation,  when expressed as an annual
rate, is equivalent to (x) the applicable  rate based on a year of 360 days, (y)
multiplied by the actual number of days in the calendar year in which the period
for which such interest or fee is payable (or compounded)  ends, and (z) divided
by 360, (ii) the principal of deemed  reinvestment of interest does not apply to
any interest  calculation under this Agreement,  and (iii) the rates of


                                       43
<PAGE>

interest  stipulated  in the  Agreement are intended to be nominal rates and not
effective rates or yields.

2.3  Fees.

     A. Commitment  Fees.  Company agrees to pay to  Administrative  Agent,  for
distribution to each Lender having Revolving Loan Exposure in proportion to that
Lender's Pro Rata Share,  commitment  fees for the period from and including the
Closing Date to and excluding the Revolving  Loan  Commitment  Termination  Date
equal to the average of the daily excess of the Revolving Loan  Commitments over
the sum of (i) the aggregate  principal  amount of outstanding  Revolving Loans,
(but not any outstanding  Swing Line Loans) plus (ii) the Letter of Credit Usage
multiplied by 1/2 of 1% per annum,  such commitment fees to be calculated on the
basis of a 360-day year and the actual  number of days elapsed and to be payable
quarterly  in arrears  on March 1, June 1,  September  1 and  December 1 of each
year,  commencing on the first such date to occur after the Closing Date, and on
the Revolving Loan Commitment Termination Date.

     B.  Other  Fees.   Company   agrees  to  pay  to   Syndication   Agent  and
Administrative Agent such fees in the amounts and at the times separately agreed
upon between Company, Syndication Agent and Administrative Agent.

2.4  Repayments,  Prepayments  and  Reductions  in Revolving  Loan  Commitments;
     General  Provisions   Regarding   Payments;   Application  of  Proceeds  of
     Collateral and Payments Under Guaranties.

     A. Scheduled Payments of Term Loans.

          (i)  Scheduled  Payments of Tranche A Term Loans.  Company  shall make
     principal payments on the Tranche A Term Loans in installments on the dates
     and in the amounts set forth below:

================================================================================
                                                   Scheduled Repayment
     Date                                        of Tranche A Term Loans
- --------------------------------------------------------------------------------
June 26, 1998                                           $2,000,000
- --------------------------------------------------------------------------------
September 25, 1998                                      $2,000,000
- --------------------------------------------------------------------------------
December 25, 1998                                       $2,000,000
- --------------------------------------------------------------------------------
March 26, 1999                                          $4,000,000
- --------------------------------------------------------------------------------
June 25, 1999                                           $4,000,000
- --------------------------------------------------------------------------------
September 24, 1999                                      $4,000,000
- --------------------------------------------------------------------------------
December 24, 1999                                       $4,000,000
- --------------------------------------------------------------------------------
March 31, 2000                                          $4,000,000
- --------------------------------------------------------------------------------
June 30, 2000                                           $4,000,000
- --------------------------------------------------------------------------------
September 29, 2000                                      $4,000,000

                                       44
<PAGE>
================================================================================
                                                   Scheduled Repayment
     Date                                        of Tranche A Term Loans
- --------------------------------------------------------------------------------
December 29, 2000                                       $4,000,000
- --------------------------------------------------------------------------------
March 30, 2001                                          $5,000,000
- --------------------------------------------------------------------------------
June 29, 2001                                           $5,000,000
- --------------------------------------------------------------------------------
September 28, 2001                                      $5,000,000
- --------------------------------------------------------------------------------
December 26, 2001                                       $5,000,000
- --------------------------------------------------------------------------------
March 29, 2002                                          $5,250,000
- --------------------------------------------------------------------------------
June 28, 2002                                           $5,250,000
- --------------------------------------------------------------------------------
September 27, 2002                                      $5,250,000
- --------------------------------------------------------------------------------
December 27, 2002                                       $5,250,000
- --------------------------------------------------------------------------------
February 12, 2003                                       $6,000,000
- --------------------------------------------------------------------------------
              TOTAL                                    $85,000,000
================================================================================

     ; provided  that the scheduled  installments  of principal of the Tranche A
     Term  Loans  set  forth  above  shall be  reduced  in  connection  with any
     voluntary  or  mandatory  prepayments  of  the  Tranche  A  Term  Loans  in
     accordance with subsection 2.4B(iv); and provided, further that the Tranche
     A Term  Loans and all other  amounts  owed  hereunder  with  respect to the
     Tranche A Term Loans shall be paid in full no later than February 12, 2003,
     and the final  installment  payable by Company in respect of the  Tranche A
     Term Loans on such date shall be in an amount,  if such amount is different
     from that specified above, sufficient to repay all amounts owing by Company
     under this Agreement with respect to the Tranche A Term Loans.

          (ii)  Scheduled  Payments  of  AXELs  Series  B.  Company  shall  make
     principal  payments on the AXELs Series B in  installments on the dates and
     in the amounts set forth below:

================================================================================
                                                           Scheduled
                                                           Repayment
     Date                                              of AXELs Series B
- --------------------------------------------------------------------------------
June 26, 1998                                              $750,000
- --------------------------------------------------------------------------------
September 25, 1998                                         $375,000
- --------------------------------------------------------------------------------
December 25, 1998                                          $375,000
- --------------------------------------------------------------------------------
March 26, 1999                                             $375,000
- --------------------------------------------------------------------------------
June 25, 1999                                              $375,000
- --------------------------------------------------------------------------------
September 24, 1999                                         $375,000
- --------------------------------------------------------------------------------
December 24, 1999                                          $375,000


                                       45
<PAGE>

================================================================================
                                                           Scheduled
                                                           Repayment
     Date                                              of AXELs Series B
- --------------------------------------------------------------------------------
March 31, 2000                                             $375,000
- --------------------------------------------------------------------------------
June 30, 2000                                              $375,000
- --------------------------------------------------------------------------------
September 29, 2000                                         $375,000
- --------------------------------------------------------------------------------
December 29, 2000                                          $375,000
- --------------------------------------------------------------------------------
March 30, 2001                                             $375,000
- --------------------------------------------------------------------------------
June 29, 2001                                              $375,000
- --------------------------------------------------------------------------------
September 28, 2001                                         $375,000
- --------------------------------------------------------------------------------
December 26, 2001                                          $375,000
- --------------------------------------------------------------------------------
March 29, 2002                                             $375,000
- --------------------------------------------------------------------------------
June 28, 2002                                              $375,000
- --------------------------------------------------------------------------------
September 27, 2002                                         $375,000
- --------------------------------------------------------------------------------
December 27, 2002                                          $375,000
- --------------------------------------------------------------------------------
March 28, 2003                                          $35,625,000
- --------------------------------------------------------------------------------
June 27, 2003                                           $35,625,000
- --------------------------------------------------------------------------------
September 26, 2003                                      $35,625,000
- --------------------------------------------------------------------------------
December 26, 2003                                       $35,625,000
- --------------------------------------------------------------------------------
                 TOTAL                                 $150,000,000
================================================================================

     ; provided that the scheduled installments of principal of the AXELs Series
     B set forth  above shall be reduced in  connection  with any  voluntary  or
     mandatory  prepayments of the AXELs Series B in accordance  with subsection
     2.4B(iv);  and  provided,  further  that the  AXELs  Series B and all other
     amounts owed  hereunder with respect to the AXELs Series B shall be paid in
     full no later than December 26, 2003, and the final installment  payable by
     Company  in  respect  of the  AXELs  Series B on such  date  shall be in an
     amount,  if such amount is different from that specified above,  sufficient
     to repay all amounts owing by Company under this  Agreement with respect to
     the AXELs Series B.



                                       46
<PAGE>

     B. Prepayments and Reductions in Revolving Loan Commitments.

          (i)  Voluntary  Prepayments.  Company may,  upon written or telephonic
     notice to Administrative  Agent on or prior to 12:00 Noon (Toronto time) on
     the date of  prepayment,  which notice,  if  telephonic,  shall be promptly
     confirmed  in  writing,  at any time and from time to time prepay any Swing
     Line Loan on any  Business  Day in whole or in part in any amount.  Company
     may,  upon not less than one  Business  Day's prior  written or  telephonic
     notice,  in the case of Base Rate  Loans,  and three  Business  Days' prior
     written or telephonic notice, in the case of Eurodollar Rate Loans, in each
     case  given to  Administrative  Agent by 12:00 Noon (New York City time) on
     the date required and, if given by telephone, promptly confirmed in writing
     to  Administrative  Agent  (which  original  written or  telephonic  notice
     Administrative  Agent will promptly  transmit by telefacsimile or telephone
     to each Lender), at any time and from time to time prepay any Term Loans or
     Revolving  Loans on any  Business  Day in whole or in part in an  aggregate
     minimum amount of $5,000,000 and integral multiples of $1,000,000 in excess
     of that amount; provided,  however, that a Eurodollar Rate Loan may only be
     prepaid on the expiration of the Interest Period applicable thereto. Notice
     of prepayment  having been given as aforesaid,  the principal amount of the
     Loans  specified  in  such  notice  shall  become  due and  payable  on the
     prepayment date specified therein.  Any such voluntary  prepayment shall be
     applied as specified in subsection  2.4B(iv) and shall be  accompanied by a
     prepayment premium to the extent required pursuant to subsection 2.4B(v).

          (ii) Voluntary Reductions of Revolving Loan Commitments.  Company may,
     upon not less than three Business Days' prior written or telephonic  notice
     confirmed in writing to  Administrative  Agent (which  original  written or
     telephonic   notice   Administrative   Agent  will  promptly   transmit  by
     telefacsimile  or telephone to each  Lender),  at any time and from time to
     time terminate in whole or permanently  reduce in part,  without premium or
     penalty,  the Revolving  Loan  Commitments in an amount up to the amount by
     which the  Revolving  Loan  Commitments  exceed  the Total  Utilization  of
     Revolving  Loan  Commitments  at the time of such proposed  termination  or
     reduction;  provided that any such partial  reduction of the Revolving Loan
     Commitments  shall be in an  aggregate  minimum  amount of  $5,000,000  and
     integral multiples of $1,000,000 in excess of that amount. Company's notice
     to Administrative Agent shall designate the date (which shall be a Business
     Day)  of such  termination  or  reduction  and the  amount  of any  partial
     reduction,  and  such  termination  or  reduction  of  the  Revolving  Loan
     Commitments  shall be effective on the date  specified in Company's  notice
     and  shall   reduce  the   Revolving   Loan   Commitment   of  each  Lender
     proportionately to its Pro Rata Share.

          (iii) Mandatory Prepayments and Mandatory Reductions of Revolving Loan
     Commitments.   Subject  to  the   limitations   set  forth  in   subsection
     2.4B(iv)(e),   the  Loans  shall  be  prepaid  and/or  the  Revolving  Loan
     Commitments  shall be  permanently  reduced  in the  amounts  and under the
     circumstances  set forth below,  all such  prepayments to be applied as set
     forth below or as more specifically  provided in subsection 2.4B(iv) and to
     be accompanied by a prepayment  premium to the extent required  pursuant to
     subsection 2.4B(v):

               (a) Prepayments  and Reductions From Net Asset Sale Proceeds.  No
          later than the first  Business  Day  following  the date of receipt by
          Company or


                                       47
<PAGE>

          any of its  Subsidiaries  of any Net Asset Sale Proceeds in respect of
          any Asset Sale,  Company  shall prepay the Loans and/or the  Revolving
          Loan Commitments  shall be permanently  reduced in an aggregate amount
          equal to such Net Asset Sale Proceeds;  provided,  however,  that upon
          receipt by Company  or any of its  Subsidiaries  of any such Net Asset
          Sale  Proceeds,  so long as no Potential  Event of Default or Event of
          Default shall have  occurred and be continuing  and to the extent that
          the aggregate  amount of Net Asset Sale Proceeds from the Closing Date
          through the date of  determination  does not exceed  $5,000,000 in the
          aggregate in the 12 month  period which  commences on the Closing Date
          or in any 12 month period which commences on each anniversary thereto,
          Company may deliver to Administrative  Agent an Officers'  Certificate
          setting forth (1) that portion of such Net Asset Sale  Proceeds  (such
          portion being the "Proposed  Asset Sale  Reinvestment  Proceeds") that
          Company or such  Subsidiary  intends to reinvest in equipment or other
          tangible or intangible  productive  assets of the general type used in
          the business (excluding research and development costs) of Company and
          its  Subsidiaries  (such  equipment  and other assets being  "Eligible
          Assets")  within 180 days of such date of receipt and (2) the proposed
          use of such Proposed Asset Sale  Reinvestment  Proceeds and such other
          information with respect to such reinvestment as Administrative  Agent
          may reasonably request,  and Company shall, or shall cause one or more
          of its  Subsidiaries  to, promptly and diligently  apply such Proposed
          Asset  Sale  Reinvestment  Proceeds  to  such  reinvestment  purposes;
          provided,  however, that at Company's option, such Proposed Asset Sale
          Reinvestment  Proceeds may be applied to prepay outstanding  Revolving
          Loans (without a reduction in Revolving Loan  Commitments) to the full
          extent  thereof.  In addition,  Company shall,  no later than 180 days
          after receipt of such Proposed Asset Sale  Reinvestment  Proceeds that
          have  not  theretofore  been  applied  to  the  Obligations,  make  an
          additional   prepayment  of  the  Loans  (and/or  the  Revolving  Loan
          Commitments  shall be reduced) in the full amount of all such Proposed
          Asset Sale  Reinvestment  Proceeds that have not  theretofore  been so
          reinvested  in Eligible  Assets;  provided  that Company  shall not be
          required  to make any  prepayment  of the Loans to the extent that the
          Net Asset Sale  Proceeds  from the  Closing  Date  through the date of
          determination does not exceed $500,000.

               (b) Prepayments  and Reductions from Net Insurance/  Condemnation
          Proceeds.  No later than the first  Business Day following the date of
          receipt  by  Administrative   Agent  or  by  Company  or  any  of  its
          Subsidiaries  of any  Net  Insurance/Condemnation  Proceeds  that  are
          required to be applied to prepay the Loans and/or reduce the Revolving
          Loan  Commitments  pursuant  to the  provisions  of  subsection  6.4C,
          Company shall prepay the Loans and/or the Revolving  Loan  Commitments
          shall be  permanently  reduced  in an  aggregate  amount  equal to the
          amount of such Net  Insurance/Condemnation  Proceeds  minus (if (1) no
          Event of Default shall have occurred and be continuing and (2) Company
          shall have delivered to Administrative  Agent, on or before such first
          Business  Day,  the  Officers'  Certificate  described  in  subsection
          6.4C(ii)),  any Proposed Insurance  Reinvestment  Proceeds;  provided,
          however,   that  at  Company's   option,   such   Proposed   Insurance
          Reinvestment  Proceeds may be applied to prepay outstanding  Revolving
          Loans (without a reduction in Revolving Loan  Commitments) to the full
          extent thereof.  In addition,  no later than 180 days after receipt of
          any Proposed Insurance Reinvestment Proceeds,


                                       48
<PAGE>

          Company shall prepay the Loans and/or the Revolving  Loan  Commitments
          shall be  permanently  reduced in an amount equal to the amount of any
          such   Proposed   Insurance   Reinvestment   Proceeds  that  have  not
          theretofore  been  applied  to the costs of  repairing,  restoring  or
          replacing  the  applicable  assets of Company or its  Subsidiaries  or
          reinvested  in Eligible  Assets;  provided  that Company  shall not be
          required  to make any  prepayment  of the Loans to the extent that the
          Net Insurance/Condemnation  Proceeds from the Closing Date through the
          date of determination does not exceed $500,000.

               (c)  Prepayments  Due to Issuance of Debt. On the date of receipt
          by  Company or any of its  Subsidiaries  of the Cash  proceeds  of any
          Indebtedness,  including  debt  Securities  of  Company  or any of its
          Subsidiaries (other than Indebtedness  expressly permitted pursuant to
          subsections 7.1(i) through 7.1(vi) (such proceeds, net of underwriting
          discounts  and  commissions  and other  reasonable  costs and expenses
          associated  therewith,  including  reasonable legal fees and expenses,
          being the "Net Indebtedness Proceeds"), Company shall prepay the Loans
          in an  aggregate  amount  equal  to such  Net  Indebtedness  Proceeds;
          provided however that payment or acceptance of amounts provided for in
          this  subsection  2.4B(iii)(c)  shall not  constitute  a waiver of any
          Event of Default resulting from the incurrence of such Indebtedness or
          otherwise prejudice any rights or remedies of Agents or Lenders.

               (d)   Prepayments  and  Reductions  Due  to  Issuance  of  Equity
          Securities.  On the date of receipt  by  Company of the Cash  proceeds
          (any such proceeds,  net of underwriting discounts and commissions and
          other reasonable costs and expenses  associated  therewith,  including
          reasonable legal fees and expenses,  being "Net Equity Proceeds") from
          the issuance of any equity Securities of Company, Company shall prepay
          the Loans and/or the Revolving Loan  Commitments  shall be permanently
          reduced in an  aggregate  amount equal to (1) with respect to any such
          Net Equity  Proceeds  received  during the  period  commencing  on the
          Closing  Date and  continuing  through  the first  anniversary  of the
          Closing  Date,  75% of such Net  Equity  Proceeds  and (2) at any time
          following the first anniversary of the Closing Date, either (X) 75% of
          such Net Equity Proceeds or, (Y) if the Consolidated Leverage Ratio is
          not more  than  1.25:1.0  on the date  such Net  Equity  Proceeds  are
          received, 50% of such Net Equity Proceeds.

               (e)  Prepayments  and Reductions  from  Consolidated  Excess Cash
          Flow. In the event that there shall be  Consolidated  Excess Cash Flow
          for any Fiscal Year commencing  with Fiscal Year 1999,  Company shall,
          no later than 90 days after the end of such  Fiscal  Year,  prepay the
          Loans  and/or the  Revolving  Loan  Commitments  shall be  permanently
          reduced  in  an  aggregate   amount  equal  to  (1)  with  respect  to
          Consolidated  Excess  Cash  Flow for  Fiscal  Year  1999,  75% of such
          Consolidated Excess Cash Flow and (2) for each subsequent Fiscal Year,
          either (X) 75% of such  Consolidated  Excess  Cash Flow or, (Y) if the
          Consolidated  Leverage Ratio is not more than 1.25:1.0 on the last day
          of any such Fiscal Year, 50% of such Consolidated Excess Cash Flow.

               (f) Calculations of Net Proceeds Amounts;  Additional Prepayments
          and Reductions Based on Subsequent Calculations. Concurrently with any


                                       49
<PAGE>

          prepayment  of  the  Loans  and/or  reduction  of the  Revolving  Loan
          Commitments  pursuant to subsections  2.4B(iii)(a)-(e),  Company shall
          deliver to Administrative Agent an Officers' Certificate demonstrating
          the  calculation  of the amount  (the "Net  Proceeds  Amount")  of the
          applicable  Net  Asset  Sale  Proceeds  or Net  Insurance/Condemnation
          Proceeds,  the  applicable  Net  Indebtedness  Proceeds  or Net Equity
          Proceeds (as such terms are defined in  subsections  2.4B(iii)(c)  and
          (d), or the applicable  Consolidated Excess Cash Flow, as the case may
          be, that gave rise to such prepayment and/or  reduction.  In the event
          that Company shall subsequently determine that the actual Net Proceeds
          Amount  was  greater  than the  amount  set  forth  in such  Officers'
          Certificate,  Company shall promptly make an additional  prepayment of
          the Loans (and/or, if applicable, the Revolving Loan Commitments shall
          be  permanently  reduced)  in an  amount  equal to the  amount of such
          excess,   and  Company  shall   concurrently   therewith   deliver  to
          Administrative  Agent  an  Officers'  Certificate   demonstrating  the
          derivation of the  additional  Net Proceeds  Amount  resulting in such
          excess.

               (g)  Prepayments  Due to Reductions or  Restrictions of Revolving
          Loan  Commitments.  Company  shall from time to time prepay  first the
          Swing Line Loan and second the Revolving Loans to the extent necessary
          so that the Total  Utilization of Revolving Loan Commitments shall not
          at any time exceed the Revolving Loan Commitments then in effect.

          (iv) Application of Prepayments.

               (a)  Application  of Voluntary  Prepayments  by Type of Loans and
          Order of Maturity.  Any voluntary  prepayments  pursuant to subsection
          2.4B(i)  shall be applied as  specified  by Company in the  applicable
          notice of  prepayment;  provided  that in the event  Company  fails to
          specify the Loans to which any such prepayment shall be applied,  such
          prepayment  shall be  applied  first to repay  outstanding  Swing Line
          Loans  to  the  full  extent  thereof,  second  to  repay  outstanding
          Revolving  Loans  to the  full  extent  thereof,  and  third  to repay
          outstanding  Term  Loans to the full  extent  thereof.  Any  voluntary
          prepayments of the Term Loans pursuant to subsection  2.4B(i) shall be
          applied to prepay the Tranche A Term Loans and the AXELs Series B on a
          pro  rata  basis  (in  accordance  with  the  respective   outstanding
          principal amounts thereof) and to reduce the scheduled installments of
          principal  of the Tranche A Term Loans and AXELs Series B set forth in
          subsections 2.4A(i) and 2.4A(ii) on a pro rata basis.

               (b)  Application of Mandatory  Prepayments by Type of Loans.  Any
          amount (the  "Applied  Amount")  required to be applied as a mandatory
          prepayment  of the Loans  and/or a  reduction  of the  Revolving  Loan
          Commitments pursuant to subsections  2.4B(iii)(a)-(f) shall be applied
          first to prepay the Term Loans to the full extent thereof,  second, to
          the extent of any remaining  portion of the Applied Amount,  to prepay
          the Swing Line Loans to the full  extent  thereof  and to  permanently
          reduce  the  Revolving   Loan   Commitments  by  the  amount  of  such
          prepayment,  third  to the  extent  of any  remaining  portion  of the
          Applied  Amount,  to prepay  the  Revolving  Loans to the full  extent
          thereof  and  to  further   permanently   reduce  the  Revolving  Loan
          Commitments  by the  amount of such  prepayment,  and  fourth,  to the
          extent of


                                       50
<PAGE>

          any remaining  portion of the Applied Amount,  to further  permanently
          reduce the  Revolving  Loan  Commitments  to the full extent  thereof;
          provided,  however,  that  notwithstanding any other provision in this
          Agreement to the contrary,  to the extent that any such application of
          any portion of any Applied  Amount to the AXELs Series B would violate
          the limitations set forth in subsection 2.4B(iv)(e), then such portion
          of the Applied Amount,  shall be applied first to prepay the Tranche A
          Term  Loans  to the  full  extent  thereof,  second  in the  order  as
          otherwise set forth in clauses  "second",  "third" and "fourth"  above
          and third to the extent of any  remaining  portion of any such Applied
          Amount,  to the payment of any other amounts which may then be due and
          owing by  Company  under any Loan  Document  (except to the extent any
          such payment  would  violate the  limitations  set forth in subsection
          2.4B(iv)(e)), and fourth, to be returned to Company.

               (c) Application of Mandatory Prepayments of Term Loans to Tranche
          A Term  Loans and AXELs  Series B and the  Scheduled  Installments  of
          Principal   Thereof.   Subject  to  the   provisions   of   subsection
          2.4B(iv)(b),  any mandatory  prepayments of the Term Loans pursuant to
          subsection  2.4B(iii)  shall be applied  to prepay the  Tranche A Term
          Loans and the AXELs  Series B on a pro rata basis in  accordance  with
          the respective  outstanding  principal amounts thereof.  Any mandatory
          prepayments  applied to the Tranche A Term Loans or the AXELs Series B
          pursuant to this subsection 2.4B(iv)(c) shall be applied to reduce the
          scheduled installments of principal of the Tranche A Term Loans or the
          AXELs Series B, as the case may be, set forth in subsection 2.4A(i) or
          2.4A(ii), respectively, as follows:

                    (1) Net Asset Sale  Proceeds,  Net  Insurance/  Condemnation
               Proceeds,  Net Indebtedness Proceeds and Net Equity Proceeds. Any
               such mandatory prepayments pursuant to subsections  2.4B(iii)(a),
               (b),  (c) and (d) (and any  related  such  mandatory  prepayments
               pursuant to  subsection  2.4B(iii)(f))  shall be applied on a pro
               rata  basis  (in  accordance  with  the  respective   outstanding
               principal  amounts  thereof) to each such  scheduled  installment
               that is unpaid at the time of such prepayment.

                    (2)  Consolidated  Excess  Cash  Flow.  Any  such  mandatory
               prepayments pursuant to subsections 2.4B(iii)(e) (and any related
               such mandatory  prepayments pursuant to subsection  2.4B(iii)(f))
               shall be applied to reduce such scheduled installments in inverse
               order of maturity.

               (d) Waiver of Certain Mandatory  Prepayments.  Anything contained
          herein to the contrary notwithstanding,  so long as any Tranche A Term
          Loans are  outstanding,  in the event  Company is required to make any
          mandatory prepayment (a "Waivable Mandatory  Prepayment") of the AXELs
          Series B pursuant to subsection 2.4B(iii)(e),  (X) not less than three
          Business Days prior to the date (the  "Required  Prepayment  Date") on
          which Company is required to make such Waivable Mandatory  Prepayment,
          Company  shall  notify  Administrative  Agent  of the  amount  of such
          prepayment,  and Administrative  Agent will promptly thereafter notify
          each Lender holding an outstanding AXEL Series B of the amount of such
          Lender's Pro Rata Share of such


                                       51
<PAGE>

          Waivable Mandatory  Prepayment and such Lender's option to refuse such
          amount,  (Y) each  such  Lender  may  exercise  such  option by giving
          written notice to Company and Administrative  Agent of its election to
          do so on or before the first Business Day (the "Cutoff Date") prior to
          the  Required  Prepayment  Date (it being  understood  that any Lender
          which does not notify Company and Administrative Agent of its election
          to  exercise  such option on or before the Cutoff Date shall be deemed
          to have elected,  as of the Cutoff Date, not to exercise such option),
          and  (Z)  on  the  Required  Prepayment  Date,  Company  shall  pay to
          Administrative Agent the amount of the Waivable Mandatory  Prepayment,
          which  amount  shall be applied (1) in an amount equal to that portion
          of the Waivable  Mandatory  Prepayment  payable to those  Lenders that
          have elected not to exercise such option, to prepay the AXELs Series B
          of such Lenders  (which  prepayment  shall be applied to the scheduled
          installments  of principal of the AXELs  Series B in  accordance  with
          subsection  2.4B(iv)(c)) and (2) in an amount equal to that portion of
          the Waivable Mandatory  Prepayment  otherwise payable to those Lenders
          that have  elected to exercise  such  option,  to prepay the Tranche A
          Term  Loans  (which  prepayment  shall  be  applied  to the  scheduled
          installments  of principal  of the Tranche A Term Loans in  accordance
          with subsection 2.4B(iv)(c).

               (e)  Limitation  on  Mandatory  Prepayments  of AXELs  Series  B.
          Anything contained herein to the contrary notwithstanding,  during the
          period commencing on the Closing Date and continuing through the fifth
          anniversary  of the Closing Date, in no event shall the sum of (X) the
          aggregate  amount  of all  mandatory  prepayments  of  AXELs  Series B
          pursuant to subsection  2.4B(iii) plus (Y) the aggregate amount of all
          scheduled  prepayments  of  AXELs  Series  B  pursuant  to  subsection
          2.4A(ii)  exceed an  amount  equal to 25% of the  aggregate  principal
          amount of the AXELs Series B on the Closing Date, it being  understood
          and agreed that no such amount shall be payable or required to be paid
          under this Agreement.

               (f)  Application of Prepayments to Base Rate Loans and Eurodollar
          Rate  Loans.  Considering  Tranche A Term  Loans,  AXELs  Series B and
          Revolving Loans being prepaid separately, any prepayment thereof shall
          be applied first to Base Rate Loans to the full extent  thereof before
          application to Eurodollar  Rate Loans,  in each case in a manner which
          minimizes  the amount of any  payments  required to be made by Company
          pursuant to subsection 2.6D.



                                       52
<PAGE>

          (v) Prepayment Premium.

               (a) Concurrently with any voluntary  prepayments made pursuant to
          subsection  2.4B(i) or any  mandatory  prepayments  made  pursuant  to
          subsection 2.4B(iii)(a), (b) or (c) the proceeds of which voluntary or
          mandatory  prepayment  are  applied to the AXELs  Series B pursuant to
          subsection  2.4B(iv),  Company shall pay to Administrative  Agent, for
          distribution  to the  AXEL  Series B  Lenders  (i) in the  event  such
          prepayment is made on or prior to the first anniversary of the Closing
          Date, a prepayment  premium equal to 1.0% of the  principal  amount of
          such prepayment,  and (ii) in the event such prepayment is made during
          the six month  period next  succeeding  the first  anniversary  of the
          Closing  Date, a prepayment  premium  equal to 0.50% of the  principal
          amount of such  prepayment.  The prepayment of any amounts owing to an
          AXEL Series B Lender pursuant to subsection 2.10 shall not require the
          payment of any prepayment premium pursuant to this subsection 2.4B(v).

               (b)  Aggregate  prepayment  premiums  received by  Administrative
          Agent shall be  apportioned  among all  outstanding  AXELs Series B to
          which such prepayment premiums relate, in each case proportionately to
          the AXELs Series B Lenders' respective Pro Rata Shares.

     C. General Provisions Regarding Payments.

          (i) Manner and Time of Payment.  All payments by Company of principal,
     interest, fees and other Obligations hereunder and under the Notes shall be
     made in Dollars in same day funds, without defense, setoff or counterclaim,
     free of any restriction or condition, and delivered to Administrative Agent
     not later than 12:00 Noon (Toronto time) on the date due at the Funding and
     Payment Office for the account of Lenders; funds received by Administrative
     Agent after that time on such due date shall be deemed to have been paid by
     Company  on the next  succeeding  Business  Day.  Company  shall  make each
     payment  of Swing  Line  Loans in  Canadian  Dollars  and each  payment  of
     Revolving  Loans  and Term  Loans in  Dollars.  Company  hereby  authorizes
     Administrative  Agent to charge its accounts with  Administrative  Agent in
     order to cause  timely  payment to be made to  Administrative  Agent of all
     principal, interest, fees and expenses due hereunder (subject to sufficient
     funds being available in its accounts for that purpose).

          (ii)  Application  of Payments to Principal  and  Interest.  Except as
     provided in  subsection  2.2C,  all  payments  in respect of the  principal
     amount  of any Loan  shall  include  payment  of  accrued  interest  on the
     principal  amount being repaid or prepaid,  and all such payments  (and, in
     any event,  any payments in respect of any Loan on a date when  interest is
     due and payable  with respect to such Loan) shall be applied to the payment
     of interest before application to principal.

          (iii)  Apportionment  of Payments.  Aggregate  principal  and interest
     payments in respect of Term Loans and Revolving  Loans shall be apportioned
     among all  outstanding  Loans to which such payments  relate,  in each case
     proportionately  to Lenders'  respective  Pro Rata  Shares.  Administrative
     Agent shall promptly  distribute to each Lender, at its primary address set
     forth below its name on the  appropriate  signature  page hereof or at such
     other  address as such Lender may  request,  its Pro


                                       53
<PAGE>

     Rata Share of all such  payments  received  by  Administrative  Agent,  any
     prepayment  premiums payable to such Lender when received by Administrative
     Agent pursuant to Section  2.4(v),  and the commitment  fees of such Lender
     when  received  by   Administrative   Agent  pursuant  to  subsection  2.3.
     Notwithstanding the foregoing provisions of this subsection 2.4C(iii),  if,
     pursuant   to  the   provisions   of   subsection   2.6C,   any  Notice  of
     Conversion/Continuation  is withdrawn  as to any Affected  Lender or if any
     Affected  Lender makes Base Rate Loans in lieu of its Pro Rata Share of any
     Eurodollar  Rate Loans,  Administrative  Agent shall give effect thereto in
     apportioning payments received thereafter.

          (iv)  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,
     such  payment  shall be made on the next  succeeding  Business Day and such
     extension  of time shall be included in the  computation  of the payment of
     interest hereunder or of the commitment fees hereunder, as the case may be.

          (v) Notation of Payment.  Each Lender agrees that before  disposing of
     any  Note  held  by  it,  or any  part  thereof  (other  than  by  granting
     participations  therein),  that Lender will make a notation  thereon of all
     Loans  evidenced by that Note and all principal  payments  previously  made
     thereon and of the date to which interest  thereon has been paid;  provided
     that the  failure to make (or any error in the making of) a notation of any
     Loan  made  under  such  Note  shall  not  limit or  otherwise  affect  the
     obligations  of Company  hereunder  or under such Note with  respect to any
     Loan or any payments of principal or interest on such Note.

     D. Application of Proceeds of Collateral and Payments Under Guaranties.

          (i)  Application  of  Proceeds  of  Collateral.  Except as provided in
     subsection  2.4B(iii)(a)  with respect to  prepayments  from Net Asset Sale
     Proceeds,  all proceeds received by Administrative  Agent in respect of any
     sale of,  collection from, or other realization upon all or any part of the
     Collateral  under  any  Collateral  Document  may,  in  the  discretion  of
     Administrative  Agent, be held by  Administrative  Agent as Collateral for,
     and/or  (then  or at any  time  thereafter)  applied  in full or in part by
     Administrative  Agent  against,  the  applicable  Secured  Obligations  (as
     defined in such  Collateral  Document) or  Indebtedness  (as defined in the
     U.K.  Guarantee  and  Debenture  and  the  U.K.  Pledge  Agreement)  in the
     following order of priority:

               (a) To the  payment  of all  costs  and  expenses  of such  sale,
          collection or other realization,  including reasonable compensation to
          Administrative  Agent  and its  agents  and  counsel,  and  all  other
          expenses,  liabilities and advances made or incurred by Administrative
          Agent  in   connection   therewith,   and  all   amounts   for   which
          Administrative  Agent  is  entitled  to  indemnification   under  such
          Collateral  Document and all  advances  made by  Administrative  Agent
          thereunder  for the account of the applicable  Loan Party,  and to the
          payment of all costs and expenses  paid or incurred by  Administrative
          Agent in  connection  with the  exercise of any right or remedy  under
          such  Collateral  Document,  all in accordance  with the terms of this
          Agreement and such Collateral Document;

               (b) thereafter, to the extent of any excess such proceeds, to the
          payment of all other such Secured Obligations or such Indebtedness for
          the


                                       54
<PAGE>

          ratable benefit of the Agents, Lenders and Lender Counterparties; and

               (c) thereafter, to the extent of any excess such proceeds, to the
          payment to or upon the order of such Loan Party or to whosoever may be
          lawfully  entitled  to  receive  the same or as a court  of  competent
          jurisdiction may direct.

          (ii) Application of Payments Under  Guaranties.  All payments received
     by  Administrative  Agent under any Guaranty shall be applied promptly from
     time to time by Administrative Agent in the following order of priority:

               (a) To the payment of the costs and expenses of any collection or
          other   realization   under  such   Guaranty,   including   reasonable
          compensation to Administrative  Agent and its agents and counsel,  and
          all   expenses,   liabilities   and  advances   made  or  incurred  by
          Administrative Agent in connection  therewith,  all in accordance with
          the terms of this Agreement and such Guaranty;

               (b) thereafter, to the extent of any excess such payments, to the
          payment  of  all  other  Guarantied  Obligations  (as  defined  in the
          Subsidiary Guaranty) or Indebtedness (as defined in the U.K. Guarantee
          and Debenture), as applicable,  for the ratable benefit of the Agents,
          Lenders and Lender Counterparties; and

               (c) thereafter, to the extent of any excess such payments, to the
          payment to the applicable  Subsidiary Guarantor or to whosoever may be
          lawfully  entitled  to  receive  the same or as a court  of  competent
          jurisdiction may direct.

2.5  Use of Proceeds.

     A. Term Loans.  The  proceeds of the Term Loans shall be applied by Company
to fund the Acquisition Financing Requirements.

     B. Revolving  Loans;  Swing Line Loans. The proceeds of any Revolving Loans
shall be  applied by  Company  (i) for  general  corporate  purposes,  which may
include  the  making  of  intercompany  loans to any of  Company's  wholly-owned
Subsidiaries,  in  accordance  with  subsection  7.1(iv),  for their own general
corporate  purposes and (ii) to acquire equity interest or other business assets
and pay related  expenses in  connection  with any  Permitted  Acquisition.  The
proceeds of any Swing Line Loans  shall be applied by Company  for the  purposes
set forth in clause (i) above.

     C. Margin  Regulations.  No portion of the proceeds of any borrowing  under
this Agreement shall be used by Company or any of its Subsidiaries in any manner
that might cause the  borrowing or the  application  of such proceeds to violate
Regulation  G,  Regulation  U,  Regulation  T or  Regulation  X of the  Board of
Governors of the Federal Reserve System or any other regulation of such Board or
to violate the  Exchange  Act, in each case as in effect on the date or dates of
such borrowing and such use of proceeds.

                                       55
<PAGE>

2.6  Special Provisions Governing Eurodollar Rate Loans.

     Notwithstanding any other provision of this Agreement to the contrary,  the
following  provisions  shall govern with respect to Eurodollar  Rate Loans as to
the matters covered:

     A. Determination of Applicable  Interest Rate. As soon as practicable after
10:00  A.M.   (Toronto   time)  on  each  Interest  Rate   Determination   Date,
Administrative Agent shall determine (which determination shall, absent manifest
error, be final, conclusive and binding upon all parties) the interest rate that
shall  apply to the  Eurodollar  Rate Loans for which an  interest  rate is then
being  determined  for the  applicable  Interest  Period and shall promptly give
notice thereof (in writing or by telephone  confirmed in writing) to Company and
each Lender.

     B.  Inability  to Determine  Applicable  Interest  Rate.  In the event that
Administrative  Agent shall have determined (which  determination shall be final
and  conclusive  and binding  upon all parties  hereto),  on any  Interest  Rate
Determination  Date with respect to any Eurodollar Rate Loans, that by reason of
circumstances  affecting the London  interbank market adequate and fair means do
not exist for  ascertaining  the interest  rate  applicable to such Loans on the
basis provided for in the definition of Adjusted Eurodollar Rate, Administrative
Agent shall on such date give notice (by telefacsimile or by telephone confirmed
in writing) to Company and each Lender of such  determination,  whereupon (i) no
Loans may be made as, or converted to,  Eurodollar Rate Loans until such time as
Administrative  Agent notifies Company and Lenders that the circumstances giving
rise to such notice no longer  exist and (ii) any Notice of  Borrowing or Notice
of Conversion/Continuation given by Company with respect to the Loans in respect
of which such determination was made shall be deemed to be rescinded by Company.

     C.  Illegality or  Impracticability  of Eurodollar Rate Loans. In the event
that on any date any Lender shall have determined (which  determination shall be
final and  conclusive and binding upon all parties hereto but shall be made only
after  consultation  with  Company  and  Administrative  Agent) that the making,
maintaining or continuation of its Eurodollar Rate Loans (i) has become unlawful
as a result of  compliance  by such  Lender in good faith with any law,  treaty,
governmental  rule,  regulation,  guideline or order (or would conflict with any
such treaty,  governmental rule,  regulation,  guideline or order not having the
force of law even though the failure to comply  therewith would not be unlawful)
or (ii) has become impracticable,  or would cause such Lender material hardship,
as a result of  contingencies  occurring  after the date of this Agreement which
materially and adversely  affect the London  interbank market or the position of
such Lender in that market, then, and in any such event, such Lender shall be an
"Affected  Lender" and it shall on that day give notice (by  telefacsimile or by
telephone  confirmed  in writing) to Company  and  Administrative  Agent of such
determination (which notice Administrative Agent shall promptly transmit to each
other  Lender).  Thereafter  (a) the  obligation of the Affected  Lender to make
Loans as, or to convert Loans to, Eurodollar Rate Loans shall be suspended until
such notice shall be withdrawn  by the Affected  Lender,  (b) to the extent such
determination  by the Affected  Lender  relates to a  Eurodollar  Rate Loan then
being  requested  by Company  pursuant to a Notice of  Borrowing  or a Notice of
Conversion/Continuation, the Affected Lender shall make such Loan as (or convert
such Loan to, as the case may be) a Base Rate Loan,  (c) the  Affected  Lender's
obligation  to maintain its  outstanding  Eurodollar  Rate Loans (the  "Affected
Loans")  shall be  terminated  at the earlier to occur of the  expiration of the
Interest  Period  then in effect  with


                                       56
<PAGE>

respect to the  Affected  Loans or when  required by law,  and (d) the  Affected
Loans  shall  automatically  convert  into Base  Rate  Loans on the date of such
termination.  Notwithstanding the foregoing, to the extent a determination by an
Affected  Lender as described above relates to a Eurodollar Rate Loan then being
requested  by  Company  pursuant  to  a  Notice  of  Borrowing  or a  Notice  of
Conversion/Continuation,   Company  shall  have  the  option,   subject  to  the
provisions of subsection  2.6D, to rescind such Notice of Borrowing or Notice of
Conversion/Continuation  as to all Lenders by giving notice (by telefacsimile or
by telephone confirmed in writing) to Administrative Agent of such rescission on
the date on which the  Affected  Lender  gives  notice of its  determination  as
described above (which notice of rescission  Administrative Agent shall promptly
transmit to each other Lender).  Except as provided in the immediately preceding
sentence,  nothing in this  subsection  2.6C shall affect the  obligation of any
Lender other than an Affected Lender to make or maintain Loans as, or to convert
Loans to, Eurodollar Rate Loans in accordance with the terms of this Agreement.

     D.  Compensation  For  Breakage or  Non-Commencement  of Interest  Periods.
Company shall compensate each Lender, upon written request by that Lender (which
request  shall  set  forth  the basis  for  requesting  such  amounts),  for all
reasonable losses, expenses and liabilities (including any interest paid by that
Lender to lenders of funds borrowed by it to make or carry its  Eurodollar  Rate
Loans and any loss, expense or liability  sustained by that Lender in connection
with the  liquidation  or  re-employment  of such  funds)  which that Lender may
sustain: (i) if for any reason (other than a default by that Lender) a borrowing
of any  Eurodollar  Rate Loan does not occur on a date  specified  therefor in a
Notice of Borrowing or a telephonic request for borrowing, or a conversion to or
continuation  of any  Eurodollar  Rate Loan  does not occur on a date  specified
therefor  in a Notice of  Conversion/Continuation  or a  telephonic  request for
conversion or  continuation,  (ii) if any  prepayment  (including any prepayment
pursuant to subsection  2.4B(i)) or other principal payment or any conversion of
any of its  Eurodollar  Rate Loans  occurs on a date prior to the last day of an
Interest Period  applicable to that Loan,  (iii) if any prepayment of any of its
Eurodollar  Rate  Loans  is not  made  on any  date  specified  in a  notice  of
prepayment  given by Company,  or (iv) as a consequence  of any other default by
Company in the repayment of its Eurodollar Rate Loans when required by the terms
of this Agreement.

     E. Booking of Eurodollar Rate Loans. Any Lender may make, carry or transfer
Eurodollar Rate Loans at, to, or for the account of any of its branch offices or
the office of an Affiliate of that Lender.

     F. Assumptions Concerning Funding of Eurodollar Rate Loans.  Calculation of
all amounts payable to a Lender under this  subsection 2.6 and under  subsection
2.7A  shall be made as  though  that  Lender  had  actually  funded  each of its
relevant  Eurodollar  Rate Loans  through the purchase of a  Eurodollar  deposit
bearing  interest at the rate obtained  pursuant to clause (i) of the definition
of Adjusted  Eurodollar Rate in an amount equal to the amount of such Eurodollar
Rate Loan and having a maturity  comparable to the relevant  Interest Period and
through the transfer of such Eurodollar  deposit from an offshore office of that
Lender to a  domestic  office of that  Lender in the United  States of  America;
provided,  however,  that each Lender may fund each of its Eurodollar Rate Loans
in any manner it sees fit and the foregoing  assumptions  shall be utilized only
for the purposes of calculating  amounts  payable under this  subsection 2.6 and
under subsection 2.7A.

     G. Eurodollar Rate Loans After Default.  After the occurrence of and during
the  continuation  of a Potential  Event of Default or an Event of Default,  (i)
Company may not elect to have a Loan be made or maintained  as, or converted to,
a  Eurodollar  Rate Loan after


                                       57
<PAGE>

the  expiration  of any  Interest  Period  then in effect for that Loan and (ii)
subject to the provisions of subsection  2.6D, any Notice of Borrowing or Notice
of  Conversion/Continuation  given  by  Company  with  respect  to  a  requested
borrowing or  conversion/continuation  that has not yet occurred shall be deemed
to be rescinded by Company.

2.7  Increased Costs; Taxes; Capital Adequacy.

     A. Compensation for Increased Costs and Taxes. Subject to the provisions of
subsection 2.7B (which shall be controlling  with respect to the matters covered
thereby),  in the event that any Lender  shall  determine  (which  determination
shall,  absent  manifest  error,  be final and  conclusive  and binding upon all
parties hereto) that any law, treaty or governmental rule,  regulation or order,
or any change therein or in the  interpretation,  administration  or application
thereof (including the introduction of any new law, treaty or governmental rule,
regulation or order), or any determination of a court or governmental authority,
in each case that becomes effective after the date hereof, or compliance by such
Lender with any  guideline,  request or directive  issued or made after the date
hereof by any central bank or other governmental or quasi-governmental authority
(whether or not having the force of law):

          (i) subjects  such Lender (or its  applicable  lending  office) to any
     additional Tax (other than any addition resulting from a higher rate of, or
     from a change in the calculation of, income or capital tax relating to such
     Lender's  income or capital in general)  with respect to this  Agreement or
     any of its  obligations  hereunder  or any  payments to such Lender (or its
     applicable lending office) of principal, interest, fees or any other amount
     payable hereunder;

          (ii) imposes,  modifies or holds applicable any reserve (including any
     marginal,  emergency,  supplemental,  special  or other  reserve),  special
     deposit,  compulsory  loan,  CDIC  insurance,  FDIC  insurance  or  similar
     requirement  against assets held by, or deposits or other liabilities in or
     for the account of, or advances or loans by, or other  credit  extended by,
     or any other acquisition of funds by, any office of such Lender (other than
     any such  reserve or other  requirements  with respect to  Eurodollar  Rate
     Loans that are reflected in the definition of Adjusted Eurodollar Rate); or

          (iii)  imposes any other  condition  (other than with respect to a Tax
     matter) on or affecting such Lender (or its applicable  lending  office) or
     its obligations hereunder or the London interbank market;

and the result of any of the foregoing is to increase the cost to such Lender of
agreeing to make,  making or maintaining Loans hereunder or to reduce any amount
received or receivable by such Lender (or its  applicable  lending  office) with
respect  thereto;  then, in any such case,  Company  shall  promptly pay to such
Lender,  upon receipt of the statement  referred to in the next  sentence,  such
additional  amount  or  amounts  (in the  form of an  increased  rate  of,  or a
different  method of  calculating,  interest or  otherwise as such Lender in its
sole discretion  shall  determine) as may be necessary to compensate such Lender
for any such  increased  cost or  reduction  in amounts  received or  receivable
hereunder.  Such Lender shall deliver to Company (with a copy to  Administrative
Agent) a written  statement,  setting forth in  reasonable  detail the basis for
calculating  the  additional  amounts owed to such Lender under this  subsection
2.7A,  which  statement  shall be conclusive and binding upon all parties hereto
absent manifest error.

                                       58

<PAGE>

     B. Withholding of Taxes.

          (i) All payments by Company  hereunder  under this Agreement  shall be
     made free and clear of and without deduction or withholding for any and all
     Taxes imposed by Canada (or any political  subdivision or taxing  authority
     thereof),  unless such Taxes are required by applicable  law to be deducted
     or withheld.  If Company shall be required by  applicable  law to deduct or
     withhold any such Taxes from or in respect of any amount payable hereunder,
     except as provided in the next  sentence,  (a) the amount  payable shall be
     increased (and for greater certainty,  in the case of interest,  the amount
     of interest  shall be  increased)  as may be necessary so that after making
     all  required   deductions  or   withholdings   (including   deductions  or
     withholdings   applicable  to  any  additional   amounts  paid  under  this
     subsection 2.7B), the affected Lenders or Administrative Agent, as the case
     may be,  receive an amount equal to the amount they would have  received if
     no such deduction or withholding had been made; (b) Company shall make such
     deductions or withholdings;  and (c) Company shall immediately pay the full
     amount  deducted  or  withheld  to  the  relevant  governmental  entity  in
     accordance  with  applicable  law.  Company will not be required to pay any
     such additional amounts to any Lender or Administrative  Agent by reason of
     that Lender being  connected  with Canada  otherwise than merely by lending
     money to the Company pursuant to this Agreement.

          (ii) Company agrees to immediately  pay any present or future stamp or
     documentary taxes or any other excise or property taxes, charges, financial
     institutions  duties,  debits  taxes or  similar  levies  (all such  taxes,
     charges,  duties and levies being  referred to as "Other Taxes" which arise
     from any payment made by Company hereunder or from the execution,  delivery
     or registration of, or otherwise with respect to this Agreement.

          (iii) Company agrees to indemnify Lenders and Administrative Agent for
     the full amount of Taxes or Other Taxes not  deducted or withheld  and paid
     by the Company in accordance with subsection 2.7B to the relevant  taxation
     or other authority and any Taxes or Other Taxes imposed by any jurisdiction
     on amounts payable by Company under this  subsection  2.7B, paid by Lenders
     or Administrative  Agent, as the case may be, and any liability  (including
     penalties,  interest  and  expenses)  arising  therefrom  or  with  respect
     thereto,  whether or not any such Taxes or Other  Taxes were  correctly  or
     legally asserted.  Payment under this indemnification  shall be made within
     15 days from the date  Administrative  Agent or the  relevant  Lenders make
     written  demand  therefor.  A certificate as to the amount of such Taxes or
     Other Taxes,  providing  reasonable details of the calculation thereof, and
     evidence of payment thereof submitted to Company by Administrative Agent or
     relevant  Lender  shall be prima  facie  evidence  of the  amount  due from
     Company to Administrative Agent or such Lender.

          (iv) Company  shall  furnish to  Administrative  Agent and Lenders the
     original or a certified  copy of a receipt  evidencing  payment of Taxes or
     Other Taxes made by Company within 30 days after the date of any payment of
     Taxes or Other Taxes.

     C. Capital  Adequacy  Adjustment.  If any Lender shall have determined that
the adoption, effectiveness,  phase-in or applicability after the date hereof of
any  law,  rule or  regulation  (or any  provision  thereof)  regarding  capital
adequacy, or any change therein or in

                                       59

<PAGE>

the  interpretation  or  administration  thereof by any governmental  authority,
central  bank  or  comparable   agency  charged  with  the   interpretation   or
administration  thereof,  or compliance by any Lender (or its applicable lending
office) with any  guideline,  request or directive  regarding  capital  adequacy
(whether  or not  having the force of law) of any such  governmental  authority,
central bank or comparable  agency, has or would have the effect of reducing the
rate of return on the capital of such Lender or any corporation controlling such
Lender as a  consequence  of,  or with  reference  to,  such  Lender's  Loans or
Commitments or Letters of Credit or participations  therein or other obligations
hereunder  with  respect to the Loans or the  Letters of Credit to a level below
that which such Lender or such controlling  corporation  could have achieved but
for such adoption, effectiveness,  phase-in, applicability, change or compliance
(taking  into  consideration  the  policies of such  Lender or such  controlling
corporation  with regard to capital  adequacy),  then from time to time,  within
five  Business  Days after  receipt by Company from such Lender of the statement
referred  to in the  next  sentence,  Company  shall  pay to  such  Lender  such
additional  amount or amounts as will compensate such Lender or such controlling
corporation on an after-tax basis for such reduction.  Such Lender shall deliver
to Company (with a copy to Administrative  Agent) a written  statement,  setting
forth in  reasonable  detail  the basis of the  calculation  of such  additional
amounts, which statement shall be conclusive and binding upon all parties hereto
absent manifest error.

2.8  Obligation of Lenders and Issuing Lenders to Mitigate.

     Each Lender and Issuing  Lender  agrees  that,  as promptly as  practicable
after the officer of such Lender or Issuing Lender responsible for administering
the Loans or Letters of Credit of such Lender or Issuing Lender, as the case may
be,  becomes aware of the occurrence of an event or the existence of a condition
that would cause such Lender to become an Affected  Lender or that would entitle
such  Lender or  Issuing  Lender to receive  payments  under  subsection  2.7 or
subsection  3.6,  it will,  to the extent  not  inconsistent  with the  internal
policies of such Lender or Issuing Lender and any applicable legal or regulatory
restrictions,  use reasonable  efforts (i) to make,  issue, fund or maintain the
Commitments  of such Lender or the  affected  Loans or Letters of Credit of such
Lender or Issuing Lender through  another  lending or letter of credit office of
such Lender or Issuing  Lender,  or (ii) take such other measures as such Lender
or Issuing Lender may deem reasonable,  if as a result thereof the circumstances
which would cause such Lender to be an Affected  Lender  would cease to exist or
the  additional  amounts  which would  otherwise  be required to be paid to such
Lender or Issuing  Lender  pursuant to subsection 2.7 or subsection 3.6 would be
materially reduced and if, as determined by such Lender or Issuing Lender in its
sole discretion, the making, issuing, funding or maintaining of such Commitments
or Loans or Letters  of Credit  through  such other  lending or letter of credit
office or in accordance with such other measures,  as the case may be, would not
otherwise  materially  adversely  affect such Commitments or Loans or Letters of
Credit or the  interests of such Lender or Issuing  Lender;  provided  that such
Lender or Issuing  Lender will not be obligated to utilize such other lending or
letter of credit office pursuant to this subsection 2.8 unless Company agrees to
pay all  incremental  expenses  incurred by such  Lender or Issuing  Lender as a
result of utilizing  such other  lending or letter of credit office as described
in clause (i) above. A certificate as to the amount of any such expenses payable
by Company  pursuant to this subsection 2.8 (setting forth in reasonable  detail
the basis for requesting such amount) submitted by such Lender or Issuing Lender
to Company  (with a copy to  Administrative  Agent) shall be  conclusive  absent
manifest error.

                                       60

<PAGE>

2.9  Defaulting Lenders.

     Anything  contained  herein to the contrary  notwithstanding,  in the event
that any Lender (a "Defaulting  Lender")  defaults (a "Funding  Default") in its
obligation  to  fund  any  Revolving  Loan (a  "Defaulted  Revolving  Loan")  in
accordance  with  subsection 2.1 as a result of the appointment of a receiver or
conservator  with  respect  to such  Lender at the  direction  or request of any
regulatory  agency or authority,  then (i) during any Default Period (as defined
below) with respect to such Defaulting  Lender,  such Defaulting Lender shall be
deemed not to be a "Lender" for purposes of voting on any matters (including the
granting of any consents or waivers) with respect to any of the Loan  Documents,
(ii) to the extent  permitted by applicable  law, until such time as the Default
Excess (as defined below) with respect to such Defaulting Lender shall have been
reduced to zero, (a) any voluntary prepayment of the Revolving Loans pursuant to
subsection  2.4B(i)  shall,  if Company  so  directs at the time of making  such
voluntary  prepayment,  be applied to the Revolving Loans of other Lenders as if
such Defaulting Lender had no Revolving Loans outstanding and the Revolving Loan
Exposure of such Defaulting  Lender were zero, and (b) any mandatory  prepayment
of the Revolving  Loans pursuant to subsection  2.4B(iii)  shall,  if Company so
directs  at the time of making  such  mandatory  prepayment,  be  applied to the
Revolving  Loans  of  other  Lenders  (but  not to the  Revolving  Loans of such
Defaulting  Lender)  as if such  Defaulting  Lender  had  funded  all  Defaulted
Revolving Loans of such Defaulting  Lender,  it being understood and agreed that
Company shall be entitled to retain any portion of any  mandatory  prepayment of
the  Revolving  Loans  that is not paid to such  Defaulting  Lender  solely as a
result of the  operation  of the  provisions  of this  clause  (b),  (iii)  such
Defaulting  Lender's  Revolving Loan Commitment and outstanding  Revolving Loans
and such Defaulting  Lender's Pro Rata Share of the Letter of Credit Usage shall
be excluded for purposes of  calculating  the  commitment fee payable to Lenders
pursuant to subsection 2.3A in respect of any day during any Default Period with
respect to such  Defaulting  Lender,  and such  Defaulting  Lender  shall not be
entitled to receive any commitment fee pursuant to subsection  2.3A with respect
to such Defaulting  Lender's Revolving Loan Commitment in respect of any Default
Period with respect to such Defaulting Lender, and (iv) the Total Utilization of
Revolving Loan Commitments as at any date of  determination  shall be calculated
as if such  Defaulting  Lender had funded all Defaulted  Revolving Loans of such
Defaulting Lender.

     For purposes of this Agreement, (I) "Default Period" means, with respect to
any  Defaulting  Lender,  the period  commencing  on the date of the  applicable
Funding Default and ending on the earliest of the following  dates: (A) the date
on which all Revolving Loan  Commitments are cancelled or terminated  and/or the
Obligations are declared or become immediately due and payable,  (B) the date on
which (1) the Default Excess with respect to such  Defaulting  Lender shall have
been reduced to zero  (whether by the funding by such  Defaulting  Lender of any
Defaulted  Revolving  Loans of such  Defaulting  Lender or by the  non-pro  rata
application of any voluntary or mandatory  prepayments of the Revolving Loans in
accordance  with the terms of this  subsection 2.9 or by a combination  thereof)
and  (2)  such   Defaulting   Lender   shall  have   delivered  to  Company  and
Administrative  Agent a  written  reaffirmation  of its  intention  to honor its
obligations  under this Agreement with respect to its Revolving Loan Commitment,
and (C) the date on which Company,  Administrative  Agent and Requisite  Lenders
waive all  Funding  Defaults  of such  Defaulting  Lender in  writing,  and (II)
"Default Excess" means,  with respect to any Defaulting  Lender,  the excess, if
any, of such  Defaulting  Lender's Pro Rata Share of the  aggregate  outstanding
principal  amount  of  Revolving  Loans  of all  Lenders  (calculated  as if all
Defaulting  Lenders (other than such Defaulting  Lender) had funded all of their
respective Defaulted Revolving Loans) over the


                                       61

<PAGE>

aggregate  outstanding  principal  amount of Revolving  Loans of such Defaulting
Lender.

     No Commitment of any Lender shall be increased or otherwise affected,  and,
except as otherwise  expressly  provided in this subsection 2.9,  performance by
Company of its  obligations  under this  Agreement and the other Loan  Documents
shall not be excused or otherwise  modified,  as a result of any Funding Default
or the  operation of this  subsection  2.9.  The rights and  remedies  against a
Defaulting  Lender under this subsection 2.9 are in addition to other rights and
remedies which Company may have against such  Defaulting  Lender with respect to
any  Funding  Default  and which  Administrative  Agent or any  Lender  may have
against such Defaulting Lender with respect to any Funding Default.

2.10 Removal or Replacement of a Lender.

     A. Anything contained in this Agreement to the contrary notwithstanding, in
the event that:

          (i) (a) any Lender shall give notice to Company that such Lender is an
     Affected  Lender or that such Lender is entitled to receive  payments under
     subsection  2.7 or  subsection  3.6 (any such  Lender,  an  "Increased-Cost
     Lender"),  (b) the  circumstances  which have  caused  such Lender to be an
     Affected Lender or which entitle such Lender to receive such payments shall
     remain in effect,  and (c) such Lender  shall fail to withdraw  such notice
     within five Business Days after Company's request for such withdrawal; or

          (ii) (a) any Lender shall become a Defaulting  Lender, (b) the Default
     Period for such  Defaulting  Lender  shall  remain in effect,  and (c) such
     Defaulting  Lender  shall fail to cure the  default as a result of which it
     has become a Defaulting  Lender within five  Business Days after  Company's
     request that it cure such default; or

          (iii) (a) in  connection  with any proposed  amendment,  modification,
     termination,  waiver or consent  with respect to any of the  provisions  of
     this  Agreement  as  contemplated  by clauses  (i) through (v) of the first
     provision to subsection  10.6A, the consent of Requisite Lenders shall have
     been  obtained but the consent of one or more of such other Lenders (each a
     "Non-Consenting  Lender")  whose  consent is  required  shall not have been
     obtained,  and (b) the failure to obtain  Non-Consenting  Lenders' consents
     does not result solely from the exercise of Non-Consenting  Lenders' rights
     (and the withholding of any required  consents by  Non-Consenting  Lenders)
     pursuant to the second provision to subsection 10.6A;

then,  and in each such case,  Company shall have the right,  at its option,  to
remove or replace the applicable  Increased-Cost  Lender,  Defaulting  Lender or
Non-Consenting  Lender  (the  "Terminated  Lender") to the extent  permitted  by
subsection 2.10B.

     B. Company may, by giving  written notice to  Administrative  Agent and any
Terminated Lender of its election to do so:

          (i) elect to (a) terminate the Revolving Loan  Commitment,  if any, of
     such  Terminated  Lender  upon  receipt by such  Terminated  Lender of such
     notice and (b) prepay on the date of such termination any outstanding Loans
     made by such Terminated  Lender,  together with accrued and unpaid interest
     thereon and any other amounts payable to such Terminated  Lender  hereunder
     pursuant to subsection 2.3,


                                       62
<PAGE>

     subsection  2.6,  subsection 2.7 or subsection  3.6 or otherwise;  provided
     that, in the event such Terminated  Lender has any Loans outstanding at the
     time of such termination,  the written consent of Administrative  Agent and
     Requisite  Lenders  (which  consent shall not be  unreasonably  withheld or
     delayed)  shall be required in order for Company to make the  election  set
     forth in this clause (i); or

          (ii) elect to cause such Terminated Lender (and such Terminated Lender
     hereby  irrevocably  agrees)  to  assign  its  outstanding  Loans  and  its
     Revolving  Loan  Commitment,  if  any,  in  full  to one or  more  Eligible
     Assignees  (each a "Replacement  Lender") in accordance with the provisions
     of  subsection  10.1B;  provided  that (a) on the date of such  assignment,
     Company shall pay any amounts payable to such Terminated Lender pursuant to
     subsection  2.3,  subsection  2.6,  subsection  2.7  or  subsection  3.6 or
     otherwise as if it were a prepayment  and (b) in the event such  Terminated
     Lender is a Non-Consenting  Lender,  each Replacement Lender shall consent,
     at the time of such  assignment,  to each  matter in  respect of which such
     Terminated Lender was a Non-Consenting Lender;

provided  that (X)  Company may not make  either of the  elections  set forth in
clauses  (i) or (ii) above  with  respect to any  Non-Consenting  Lender  unless
Company also makes one of such elections  with respect to each other  Terminated
Lender which is a  Non-Consenting  Lender and (Y) Company may not make either of
such elections  with respect to any Terminated  Lender that is an Issuing Lender
unless,  prior to the effectiveness of such election,  Company shall have caused
each outstanding Letter of Credit issued by such Issuing Lender to be cancelled.

     C. Upon the  prepayment of all amounts owing to any  Terminated  Lender and
the termination of such Terminated  Lender's Revolving Loan Commitment,  if any,
pursuant to clause (i) of  subsection  2.10B,  (i)  Schedule 2.1 shall be deemed
modified to reflect any corresponding  changes in the Revolving Loan Commitments
and (ii) such  Terminated  Lender  shall no longer  constitute  a  "Lender"  for
purposes of this Agreement;  provided that any rights of such Terminated  Lender
to indemnification  under this Agreement (including under subsections 2.6D, 2.7,
3.6, 10.2 and 10.3) shall survive as to such Terminated Lender.

2.11 Certain Provisions Regarding Determination of Dollar Equivalent.

     A. For purposes of  calculating  the Total  Utilization  of Revolving  Loan
Commitments,  (i) the  Equivalent  U.S. $ Amount for Canadian  Dollars  shall be
calculated by  Administrative  Agent on the second Business Day of each week or,
more  frequently,  in the  discretion  of  Administrative  Agent,  and  (ii) the
Equivalent  U.S. $ Amount for Canadian  Dollars shall remain in effect until the
same is recalculated by the Administrative Agent as provided above and notice of
such  recalculation is received by Company,  it being understood that until such
notice is  received,  for  purposes  of  calculating  the Total  Utilization  of
Revolving  Loan  Commitments,  the  Equivalent  U.S.  $  Amount  shall  be  that
Equivalent  U.S. $ Amount as last  reported  to  Company  by the  Administrative
Agent.  Administrative  Agent shall  promptly  notify Company and the Lenders of
each determination of the Equivalent U.S. $ Amount.

     B. For purposes of determining  pro rata  allocations  and "Pro Rata Share"
for purposes of payments or commitment  reductions,  or  determining  "Requisite
Class  Lenders"  or  "Required   Lenders",   all   Obligations  and  Commitments
denominated in Canadian  Dollars shall be converted on a  hypothetical  basis to
Dollars at the  Equivalent  U.S. $ Amount for


                                       63

<PAGE>

such currency as then in effect. Such hypothetical conversion shall be done only
for the purposes  described above in this subsection  2.11B and shall not affect
the  obligations of Company to repay an Obligation in the currency in which such
obligation is denominated.

     C. For  purposes of applying  amounts  received  under the Loan  Documents,
Administrative  Agent receiving  amounts under the Credit Documents on behalf of
Lenders may convert  currencies  so that  payments  are made in the  currency in
which the obligation is denominated hereunder.  Such conversion shall be made at
the rate at which  Administrative  Agent  could  purchase  currency in which the
Obligation is denominated  with the currency  received by  Administrative  Agent
hereunder at or about 10:00 am (local time in the city in which such currency is
received)  on the  date  payment  to  Lenders  are to be  made.  Such  right  of
Administrative  Agent  shall not affect the  obligations  of Company to repay an
Obligation in the currency in which such obligation is denominated.

                                   SECTION 3.
                                LETTERS OF CREDIT

3.1  Issuance  of Letters  of Credit and  Lenders'  Purchase  of  Participations
     Therein.

     A. Letters of Credit.  In addition to Company  requesting that Lenders make
Revolving Loans pursuant to subsection 2.1A(iii) and that Swing Line Lender make
Swing Line Loans  pursuant  to  subsection  2.1A(iv),  Company may  request,  in
accordance  with the provisions of this subsection 3.1, from time to time during
the period from the Closing Date to but excluding the Revolving Loan  Commitment
Termination  Date, that one or more Lenders having Revolving Loan Exposure issue
Letters of Credit for the account of Company for the  purposes  specified in the
definitions  of  Commercial  Letters  of Credit and  Standby  Letters of Credit;
provided  that all such  Commercial  Letters of Credit  shall  provide for sight
drawings.  Subject to the terms and conditions of this Agreement and in reliance
upon the  representations and warranties of Company herein set forth, any one or
more of such Lenders may, but (except as provided in subsection  3.1B(ii)) shall
not be  obligated  to,  issue  such  Letters  of Credit in  accordance  with the
provisions of this subsection 3.1;  provided that Company shall not request that
any such Lender issue (and no Lender shall issue):

          (i) any Letter of Credit if, after giving effect to such issuance, the
     Total  Utilization of Revolving Loan Commitments would exceed the Revolving
     Loan Commitments then in effect;

          (ii) any Letter of Credit if,  after giving  effect to such  issuance,
     the Letter of Credit Usage would exceed $20,000,000;

          (iii) any Standby  Letter of Credit  having an  expiration  date later
     than the  earlier of (a) five  Business  Days prior to the  Revolving  Loan
     Commitment  Termination  Date and (b) the date  which is one year  from the
     date of  issuance  of such  Standby  Letter of  Credit;  provided  that the
     immediately  preceding clause (b) shall not prevent any Issuing Lender from
     agreeing that a Standby Letter of Credit will automatically be extended for
     one or more  successive  periods  not to exceed one year each  unless  such
     Issuing  Lender elects not to extend for any such  additional  period;  and
     provided,  further that such Issuing  Lender shall elect not to extend such
     Standby  Letter of Credit if it has knowledge  that an Event of Default has
     occurred  and is  continuing  (and has not been waived in  accordance  with
     subsection  10.6) at the time


                                       64
<PAGE>

     such Issuing Lender must elect whether or not to allow such extension; or

          (iv) any  Commercial  Letter of Credit having an  expiration  date (a)
     later  than  the  earlier  of (X) the date  which  is 30 days  prior to the
     Revolving Loan  Commitment  Termination  Date and (Y) the date which is 180
     days from the date of issuance of such  Commercial  Letter of Credit or (b)
     that is otherwise  unacceptable  to the  applicable  Issuing  Lender in its
     reasonable discretion.

     B. Mechanics of Issuance.

          (i) Request for Issuance.  Whenever  Company desires the issuance of a
     Letter of Credit,  it shall deliver to  Administrative  Agent a Request for
     Issuance  of Letter  of Credit  substantially  in the form of  Exhibit  III
     annexed  hereto no later  than  12:00 Noon  (Toronto  time) at least  three
     Business  Days (in the case of Standby  Letters of Credit) or five Business
     Days (in the case of  Commercial  Letters of Credit),  or in each case such
     shorter  period as may be agreed to by the Issuing Lender in any particular
     instance,  in advance of the  proposed  date of  issuance.  The Request for
     Issuance  of  Letter of  Credit  shall  specify  (a) the  proposed  date of
     issuance  (which shall be a Business Day), (b) whether the Letter of Credit
     is to be a Standby Letter of Credit or a Commercial  Letter of Credit,  (c)
     the face  amount of the  Letter of  Credit,  (d) in the case of a Letter of
     Credit which Company  requests to be  denominated  in a currency other than
     Dollars, the currency in which Company requests such Letter of Credit to be
     issued,  (e) the expiration date of the Letter of Credit,  (f) the name and
     address  of the  beneficiary,  and  (g)  either  the  verbatim  text of the
     proposed  Letter of Credit or the proposed  terms and  conditions  thereof,
     including a precise  description  of any  documents  to be presented by the
     beneficiary  which, if presented by the beneficiary prior to the expiration
     date of the Letter of Credit,  would  require  the  Issuing  Lender to make
     payment under the Letter of Credit;  provided that the Issuing  Lender,  in
     its reasonable discretion,  may require changes in the text of the proposed
     Letter of Credit  or any such  documents;  and  provided,  further  that no
     Letter of Credit shall  require  payment  against a conforming  draft to be
     made   thereunder  on  the  same  business  day  (under  the  laws  of  the
     jurisdiction  in which the office of the Issuing Lender to which such draft
     is required to be  presented  is located)  that such draft is  presented if
     such presentation is made after 10:00 A.M. (in the time zone of such office
     of the Issuing Lender) on such business day.

          Company shall notify the applicable Issuing Lender (and Administrative
     Agent,  if  Administrative  Agent is not such Issuing  Lender) prior to the
     issuance  of any Letter of Credit in the event  that any of the  matters to
     which Company is required to certify in the applicable Request for Issuance
     of Letter of Credit is no longer true and correct as of the  proposed  date
     of issuance of such Letter of Credit,  and upon the  issuance of any Letter
     of Credit Company shall be deemed to have  re-certified,  as of the date of
     such issuance, as to the matters to which Company is required to certify in
     the applicable Request for Issuance of Letter of Credit.

          (ii)  Determination of Issuing Lender.  Upon receipt by Administrative
     Agent of a Request for Issuance of Letter of Credit  pursuant to subsection
     3.1B(i)  requesting  the  issuance  of a Letter  of  Credit,  in the  event
     Administrative Agent elects to issue such Letter of Credit,  Administrative
     Agent shall promptly so notify Company,  and Administrative  Agent shall be
     the Issuing Lender with respect thereto.  In the event that  Administrative
     Agent, in its sole  discretion,  elects not to issue such


                                       65
<PAGE>

     Letter of Credit,  Administrative  Agent shall promptly so notify  Company,
     whereupon  Company may  request  any other  Lender  having  Revolving  Loan
     Exposure to issue such Letter of Credit by delivering to such Lender a copy
     of the applicable  Request for Issuance of Letter of Credit.  Any Lender so
     requested to issue such Letter of Credit shall promptly  notify Company and
     Administrative Agent whether or not, in its sole discretion, it has elected
     to issue such  Letter of  Credit,  and any such  Lender  which so elects to
     issue  such  Letter of Credit  shall be the  Issuing  Lender  with  respect
     thereto. In the event that all other Lenders having Revolving Loan Exposure
     shall have  declined  to issue such Letter of Credit,  notwithstanding  the
     prior election of Administrative  Agent not to issue such Letter of Credit,
     Administrative  Agent shall be obligated to issue such Letter of Credit and
     shall be the Issuing Lender with respect thereto,  notwithstanding the fact
     that the Letter of Credit  Usage with  respect to such Letter of Credit and
     with respect to all other Letters of Credit issued by Administrative Agent,
     when aggregated with Administrative Agent's outstanding Revolving Loans and
     Swing  Line  Loans,  may  exceed  Administrative   Agent's  Revolving  Loan
     Commitment then in effect;  provided that Administrative Agent shall not be
     obligated to issue any Letter of Credit  denominated in a foreign  currency
     which in the  judgment  of  Administrative  Agent is not readily and freely
     available.

          (iii) Issuance of Letter of Credit.  Upon  satisfaction  or waiver (in
     accordance with subsection  10.6) of the conditions set forth in subsection
     4.3,  the  Issuing  Lender  shall issue the  requested  Letter of Credit in
     accordance with the Issuing Lender's standard operating procedures.

          (iv)  Notification  to  Lenders.  Upon the  issuance  of any Letter of
     Credit the applicable  Issuing Lender shall promptly notify  Administrative
     Agent  and each  other  Lender  of such  issuance,  which  notice  shall be
     accompanied  by a copy of such Letter of Credit.  Promptly after receipt of
     such notice (or, if  Administrative  Agent is the Issuing Lender,  together
     with such  notice),  Administrative  Agent shall notify each Lender  having
     Revolving  Loan  Exposure  of  the  amount  of  such  Lender's   respective
     participation  in such  Letter of Credit,  determined  in  accordance  with
     subsection 3.1C.

          (v) Reports to Lenders.  Within 15 days after the end of each calendar
     quarter  ending  after the  Closing  Date,  so long as any Letter of Credit
     shall have been  outstanding  during such  calendar  quarter,  each Issuing
     Lender shall deliver to each other Lender having  Revolving Loan Exposure a
     report setting forth for such calendar  quarter the daily aggregate  amount
     available  to be drawn under the Letters of Credit  issued by such  Issuing
     Lender that were outstanding during such calendar quarter.

     C. Lenders' Purchase of  Participations  in Letters of Credit.  Immediately
upon the  issuance  of each Letter of Credit,  and as of the  Closing  Date with
respect to each Existing  Letter of Credit,  each Lender having  Revolving  Loan
Exposure  shall be deemed to, and hereby agrees to, have  irrevocably  purchased
from the  Issuing  Lender a  participation  in such  Letter  of  Credit  and any
drawings  honored  thereunder in an amount equal to such Lender's Pro Rata Share
of the maximum  amount which is or at any time may become  available to be drawn
thereunder.

3.2  Letter of Credit Fees.

     Company  agrees to pay the  following  amounts  with  respect to Letters of
Credit issued hereunder:

                                       66

<PAGE>

          (i) with respect to each Standby Letter of Credit, (a) a fronting fee,
     payable  directly to the  applicable  Issuing  Lender for its own  account,
     equal to .125% per annum of the daily  amount  available  to be drawn under
     such  Standby  Letter of Credit and (b) a letter of credit fee,  payable to
     Administrative  Agent for the  account of  Lenders  having  Revolving  Loan
     Exposure,  equal to 1.00%  per annum of the daily  amount  available  to be
     drawn under such Standby Letter of Credit, each such fronting fee or letter
     of credit fee to be payable in arrears on and to (but excluding) each March
     1, June 1,  September  1 and  December 1 of each year and  computed  on the
     basis of a 360-day year for the actual number of days elapsed;

          (ii) with respect to each Commercial Letter of Credit,  (a) a fronting
     fee, payable directly to the applicable Issuing Lender for its own account,
     equal to .125% per annum of the daily  amount  available  to be drawn under
     such Commercial Letter of Credit and (b) a letter of credit fee, payable to
     Administrative  Agent for the  account of  Lenders  having  Revolving  Loan
     Exposure,  equal to 1.00%  per annum of the daily  amount  available  to be
     drawn under such  Commercial  Letter of Credit,  each such  fronting fee or
     letter of credit fee to be  payable  in  arrears on and to (but  excluding)
     each March 1, June 1,  September 1 and December 1 of each year and computed
     on the basis of a 360-day year for the actual number of days elapsed; and

          (iii) with  respect to the  issuance,  amendment  or  transfer of each
     Letter of Credit and each  payment of a drawing  made  thereunder  (without
     duplication  of the  fees  payable  under  clauses  (i)  and  (ii)  above),
     documentary  and  processing  charges  payable  directly to the  applicable
     Issuing Lender for its own account in accordance with such Issuing Lender's
     standard  schedule for such charges in effect at the time of such issuance,
     amendment, transfer or payment, as the case may be.

For purposes of calculating  any fees payable under clauses (i) and (ii) of this
subsection  3.2, (1) the daily amount  available to be drawn under any Letter of
Credit  shall  be  determined  as of  the  close  of  business  on any  date  of
determination  and (2) any amount described in such clauses which is denominated
in a  currency  other  than  Dollars  shall be  valued  based on the  applicable
Exchange  Rate for such  currency as of the  applicable  date of  determination.
Promptly upon receipt by Administrative  Agent of any amount described in clause
(i)(b) or (ii)(b) of this subsection 3.2,  Administrative Agent shall distribute
to each such Lender its Pro Rata Share of such amount.

3.3  Drawings and Reimbursement of Amounts Paid Under Letters of Credit.

     A.   Responsibility  of  Issuing  Lender  With  Respect  to  Drawings.   In
determining  whether  to honor any  drawing  under  any  Letter of Credit by the
beneficiary thereof, the Issuing Lender shall be responsible only to examine the
documents  delivered  under such Letter of Credit with  reasonable care so as to
ascertain  whether they appear on their face to be in accordance  with the terms
and conditions of such Letter of Credit.

     B. Reimbursement by Company of Amounts Paid Under Letters of Credit. In the
event an Issuing  Lender  has  determined  to honor a drawing  under a Letter of
Credit issued by it, such Issuing  Lender shall  immediately  notify Company and
Administrative  Agent,  and Company shall  reimburse  such Issuing  Lender on or
before the Business Day immediately  following the date on which such drawing is
honored (the "Reimbursement Date") in an amount in Dollars (which amount, in the
case of a drawing  under a Letter of Credit which is


                                       67
<PAGE>

denominated in a currency  other than Dollars,  shall be calculated by reference
to the  applicable  Exchange  Rate) and in same day funds equal to the amount of
such honored drawing; provided that, anything contained in this Agreement to the
contrary notwithstanding,  (i) unless Company shall have notified Administrative
Agent and such  Issuing  Lender prior to 10:00 A.M.  (Toronto  time) on the date
such drawing is honored that Company  intends to reimburse  such Issuing  Lender
for the amount of such  honored  drawing  with funds other than the  proceeds of
Revolving  Loans,  Company  shall be  deemed  to have  given a timely  Notice of
Borrowing to  Administrative  Agent  requesting  Lenders to make Revolving Loans
that are Base Rate  Loans on the  Reimbursement  Date in an  amount  in  Dollars
(which  amount,  in the case of a  drawing  under a Letter  of  Credit  which is
denominated in a currency  other than Dollars,  shall be calculated by reference
to the applicable Exchange Rate) equal to the amount of such honored drawing and
(ii) subject to satisfaction or waiver of the conditions specified in subsection
4.2B,  Lenders shall, on the  Reimbursement  Date, make Revolving Loans that are
Base Rate Loans in the amount of such  honored  drawing,  the  proceeds of which
shall be applied  directly by  Administrative  Agent to  reimburse  such Issuing
Lender for the amount of such honored drawing; and provided, further that if for
any reason  proceeds of Revolving  Loans are not received by such Issuing Lender
on the  Reimbursement  Date in an amount  equal to the  amount  of such  honored
drawing, Company shall reimburse such Issuing Lender, on demand, in an amount in
same day funds equal to the excess of the amount of such  honored  drawing  over
the aggregate  amount of such  Revolving  Loans,  if any, which are so received.
Nothing in this  subsection  3.3B shall be deemed to relieve any Lender from its
obligation to make Revolving Loans on the terms and conditions set forth in this
Agreement,  and Company  shall retain any and all rights it may have against any
Lender  resulting from the failure of such Lender to make such  Revolving  Loans
under this subsection 3.3B.



                                       68

<PAGE>

     C. Payment by Lenders of Unreimbursed Amounts Paid Under Letters of Credit.

          (i) Payment by Lenders.  In the event that Company  shall fail for any
     reason to reimburse any Issuing Lender as provided in subsection 3.3B in an
     amount  (calculated,  in the case of a  drawing  under a Letter  of  Credit
     denominated  in  a  currency  other  than  Dollars,  by  reference  to  the
     applicable  Exchange  Rate) equal to the amount of any  drawing  honored by
     such  Issuing  Lender  under a Letter of Credit  issued by it, such Issuing
     Lender  shall  promptly  notify each other  Lender  having  Revolving  Loan
     Exposure of the  unreimbursed  amount of such  honored  drawing and of such
     other Lender's respective  participation therein based on such Lender's Pro
     Rata Share. Each Lender having Revolving Loan Exposure shall make available
     to such Issuing Lender an amount equal to its respective participation,  in
     Dollars  and in same  day  funds,  at the  office  of such  Issuing  Lender
     specified in such notice,  not later than 12:00 Noon (Toronto  time) on the
     first business day (under the laws of the jurisdiction in which such office
     of such Issuing  Lender is located) after the date notified by such Issuing
     Lender.  In the event that any Lender having  Revolving Loan Exposure fails
     to make available to such Issuing Lender on such business day the amount of
     such  Lender's  participation  in such Letter of Credit as provided in this
     subsection  3.3C,  such  Issuing  Lender  shall be entitled to recover such
     amount on demand from such Lender  together  with  interest  thereon at the
     rate  customarily  used by such Issuing Lender for the correction of errors
     among  banks for  three  Business  Days and  thereafter  at the Base  Rate.
     Nothing in this  subsection  3.3C shall be deemed to prejudice the right of
     any such other Lender to recover  from any Issuing  Lender any amounts made
     available by such Lender to such Issuing Lender pursuant to this subsection
     3.3C in the event that it is determined by the final judgment of a court of
     competent  jurisdiction that the payment with respect to a Letter of Credit
     by such Issuing  Lender in respect of which payment was made by such Lender
     constituted  gross  negligence  or willful  misconduct  on the part of such
     Issuing Lender.

          (ii) Distribution to Lenders of Reimbursements  Received From Company.
     In the event any Issuing Lender shall have been reimbursed by other Lenders
     pursuant  to  subsection  3.3C(i)  for all or any  portion  of any  drawing
     honored by such Issuing  Lender under a Letter of Credit issued by it, such
     Issuing  Lender  shall  distribute  to each other Lender which has paid all
     amounts payable by it under subsection 3.3C(i) with respect to such honored
     drawing such other  Lender's  Pro Rata Share of all  payments  subsequently
     received by such  Issuing  Lender  from  Company in  reimbursement  of such
     honored  drawing when such  payments are  received.  Any such  distribution
     shall be made to a Lender at its  primary  address set forth below its name
     on the  appropriate  signature page hereof or at such other address as such
     Lender may request.

                                       69
<PAGE>

     D. Interest on Amounts Paid Under Letters of Credit.

          (i)  Payment of Interest  by  Company.  Company  agrees to pay to each
     Issuing  Lender,  with  respect to  drawings  honored  under any Letters of
     Credit issued by it,  interest on the amount paid by such Issuing Lender in
     respect of each such honored  drawing from the date such drawing is honored
     to but excluding  the date such amount is reimbursed by Company  (including
     any such  reimbursement  out of the proceeds of Revolving Loans pursuant to
     subsection  3.3B) at a rate equal to (a) for the period  from the date such
     drawing is honored to but excluding the  Reimbursement  Date, the rate then
     in effect under this  Agreement  with  respect to Revolving  Loans that are
     Base  Rate  Loans and (b)  thereafter,  a rate  which is (1) to the  extent
     permitted by applicable law, 2% per annum in excess of the rate of interest
     otherwise payable under this Agreement with respect to Revolving Loans that
     are Base Rate Loans and (2) to the extent the  increased  rate under clause
     (1)  above  is not  permitted  by  applicable  law,  at the  interest  rate
     otherwise  payable  under this  Agreement  with respect to Revolving  Loans
     which are Base Rate Loans.  Interest  payable  pursuant to this  subsection
     3.3D(i) shall be computed on the basis of a 365-day or 366-day year, as the
     case may be, for the  actual  number of days  elapsed in the period  during
     which it  accrues  and shall be payable on demand or, if no demand is made,
     on the date on which  the  related  drawing  under a Letter  of  Credit  is
     reimbursed in full.

          (ii)  Distribution of Interest  Payments by Issuing  Lender.  Promptly
     upon receipt by any Issuing  Lender of any payment of interest  pursuant to
     subsection  3.3D(i)  with  respect to a drawing  honored  under a Letter of
     Credit issued by it, (a) such Issuing Lender shall distribute to each other
     Lender having Revolving Loan Exposure, out of the interest received by such
     Issuing  Lender in  respect  of the  period  from the date such  drawing is
     honored  to but  excluding  the  date  on  which  such  Issuing  Lender  is
     reimbursed for the amount of such drawing (including any such reimbursement
     out of the proceeds of Revolving  Loans pursuant to subsection  3.3B),  the
     amount  that such  other  Lender  would  have been  entitled  to receive in
     respect of the letter of credit fee that would have been payable in respect
     of such Letter of Credit for such period  pursuant to subsection  3.2 if no
     drawing had been honored under such Letter of Credit,  and (b) in the event
     such Issuing Lender shall have been reimbursed by other Lenders pursuant to
     subsection  3.3C(i) for all or any portion of such  honored  drawing,  such
     Issuing  Lender  shall  distribute  to each other Lender which has paid all
     amounts payable by it under subsection 3.3C(i) with respect to such honored
     drawing such other Lender's Pro Rata Share of any interest received by such
     Issuing  Lender in  respect  of that  portion  of such  honored  drawing so
     reimbursed  by other  Lenders  for the  period  from the date on which such
     Issuing Lender was so reimbursed by other Lenders to but excluding the date
     on which such portion of such honored drawing is reimbursed by Company. Any
     such  distribution  shall be made to a Lender at its  primary  address  set
     forth below its name on the  appropriate  signature  page hereof or at such
     other address as such Lender may request.

                                       70

<PAGE>

3.4  Obligations Absolute.

     The  obligation  of Company to reimburse  each Issuing  Lender for drawings
honored  under the  Letters  of Credit  issued by it and to repay any  Revolving
Loans made by Lenders pursuant to subsection 3.3B and the obligations of Lenders
under  subsection  3.3C(i) shall be  unconditional  and irrevocable and shall be
paid  strictly  in  accordance  with  the  terms  of this  Agreement  under  all
circumstances including any of the following circumstances:

          (i) any lack of validity or enforceability of any Letter of Credit;

          (ii) the existence of any claim, set-off, defense or other right which
     Company  or any Lender may have at any time  against a  beneficiary  or any
     transferee  of any  Letter  of  Credit  (or any  Persons  for whom any such
     transferee may be acting),  any Issuing Lender or other Lender or any other
     Person or, in the case of a Lender, against Company,  whether in connection
     with this Agreement, the transactions  contemplated herein or any unrelated
     transaction (including any underlying transaction between Company or one of
     its  Subsidiaries  and the  beneficiary  for which any Letter of Credit was
     procured);

          (iii) any draft or other document presented under any Letter of Credit
     proving to be forged, fraudulent, invalid or insufficient in any respect or
     any statement therein being untrue or inaccurate in any respect;

          (iv)  payment by the  applicable  Issuing  Lender  under any Letter of
     Credit  against  presentation  of a draft or other  document which does not
     substantially comply with the terms of such Letter of Credit;

          (v)  any  adverse  change  in the  business,  operations,  properties,
     assets,  condition  (financial or otherwise) or prospects of Company or any
     of its Subsidiaries;

          (vi) any breach of this  Agreement  or any other Loan  Document by any
     party thereto;

          (vii) any other circumstance or happening  whatsoever,  whether or not
     similar to any of the foregoing; or

          (viii)  the fact  that an Event of  Default  or a  Potential  Event of
     Default shall have occurred and be continuing;

provided,  in each case, that payment by the applicable Issuing Lender under the
applicable  Letter of Credit  shall not have  constituted  gross  negligence  or
willful  misconduct of such Issuing Lender under the  circumstances  in question
(as determined by a final judgment of a court of competent jurisdiction).

                                       71

<PAGE>

3.5  Indemnification; Nature of Issuing Lenders' Duties.

     A.  Indemnification.   In  addition  to  amounts  payable  as  provided  in
subsection  3.6,  Company  hereby  agrees to  protect,  indemnify,  pay and save
harmless  each  Issuing  Lender from and  against  any and all claims,  demands,
liabilities,  damages, losses, costs, charges and expenses (including reasonable
fees,  expenses and  disbursements  of counsel and  allocated  costs of internal
counsel)  which such Issuing Lender may incur or be subject to as a consequence,
direct or indirect,  of (i) the issuance of any Letter of Credit by such Issuing
Lender, other than as a result of (a) the gross negligence or willful misconduct
of such Issuing Lender as determined by a final judgment of a court of competent
jurisdiction or (b) subject to the following clause (ii), the wrongful  dishonor
by such Issuing  Lender of a proper  demand for payment made under any Letter of
Credit  issued  by it or (ii) the  failure  of such  Issuing  Lender  to honor a
drawing  under any such  Letter  of  Credit as a result of any act or  omission,
whether  rightful  or  wrongful,  of any  present  or future de jure or de facto
government or governmental  authority (all such acts or omissions  herein called
"Governmental Acts").

     B. Nature of Issuing  Lenders'  Duties.  As between Company and any Issuing
Lender, Company assumes all risks of the acts and omissions of, or misuse of the
Letters of Credit issued by such Issuing Lender by, the respective beneficiaries
of  such  Letters  of  Credit.  In  furtherance  and  not in  limitation  of the
foregoing,  such  Issuing  Lender  shall not be  responsible  for: (i) the form,
validity,  sufficiency,  accuracy,  genuineness  or legal effect of any document
submitted by any party in connection  with the  application  for and issuance of
any such  Letter of Credit,  even if it should in fact prove to be in any or all
respects  invalid,  insufficient,  inaccurate,  fraudulent  or forged;  (ii) the
validity  or  sufficiency  of  any  instrument   transferring  or  assigning  or
purporting  to  transfer  or assign  any such  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;  (iii) failure of the  beneficiary of
any such Letter of Credit to comply fully with any conditions  required in order
to draw upon such Letter of Credit;  (iv) 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;  (v)  errors  in
interpretation of technical terms; (vi) any loss or delay in the transmission or
otherwise  of any  document  required in order to make a drawing  under any such
Letter of Credit or of the proceeds  thereof;  (vii) the  misapplication  by the
beneficiary  of any such Letter of Credit of the  proceeds of any drawing  under
such Letter of Credit; or (viii) any consequences arising from causes beyond the
control of such Issuing Lender, including any Governmental Acts, and none of the
above shall  affect or impair,  or prevent  the vesting of, any of such  Issuing
Lender's rights or powers hereunder.

     In  furtherance  and  extension  and  not in  limitation  of  the  specific
provisions set forth in the first paragraph of this subsection  3.5B, any action
taken or omitted by any Issuing  Lender under or in connection  with the Letters
of Credit issued by it or any documents and certificates  delivered  thereunder,
if taken or omitted in good faith,  shall not put such Issuing  Lender under any
resulting liability to Company.

     Notwithstanding  anything to the contrary contained in this subsection 3.5,
Company  shall retain any and all rights it may have against any Issuing  Lender
for  any  liability  arising  solely  out of the  gross  negligence  or  willful
misconduct of such Issuing Lender,  as determined by a final judgment of a court
of competent jurisdiction.



                                       72
<PAGE>

3.6  Increased Costs and Taxes Relating to Letters of Credit.

     Subject to the  provisions of subsection  2.7B (which shall be  controlling
with  respect to the  matters  covered  thereby),  in the event that any Issuing
Lender or Lender shall determine  (which  determination  shall,  absent manifest
error,  be final and  conclusive  and binding upon all parties  hereto) that any
law, treaty or governmental rule,  regulation or order, or any change therein or
in the  interpretation,  administration  or application  thereof  (including the
introduction of any new law, treaty or governmental rule,  regulation or order),
or any  determination  of a court or governmental  authority,  in each case that
becomes  effective after the date hereof, or compliance by any Issuing Lender or
Lender with any  guideline,  request or directive  issued or made after the date
hereof by any central bank or other governmental or quasi-governmental authority
(whether or not having the force of law):

          (i) subjects such Issuing Lender or Lender (or its applicable  lending
     or letter of credit  office) to any additional Tax (other than any addition
     resulting  from a higher rate of, or from a change in the  calculation  of,
     income or capital tax relating to such  Lender's or such  Issuing  Lender's
     income or capital in general) with respect to the issuing or maintaining of
     any  Letters  of  Credit  or  the   purchasing   or   maintaining   of  any
     participations  therein  or any other  obligations  under  this  Section 3,
     whether  directly or by such being imposed on or suffered by any particular
     Issuing Lender;

          (ii) imposes,  modifies or holds applicable any reserve (including any
     marginal,  emergency,  supplemental,  special  or other  reserve),  special
     deposit,  compulsory  loan,  CDIC  insurance,  FDIC  insurance  or  similar
     requirement  in respect  of any  Letters  of Credit  issued by any  Issuing
     Lender or participations therein purchased by any Lender; or

          (iii)  imposes any other  condition  (other than with respect to a Tax
     matter) on or affecting  such Issuing  Lender or Lender (or its  applicable
     lending or letter of credit office)  regarding this Section 3 or any Letter
     of Credit or any participation therein;

and the result of any of the  foregoing  is to increase the cost to such Issuing
Lender or Lender of  agreeing  to issue,  issuing or  maintaining  any Letter of
Credit or agreeing to purchase,  purchasing  or  maintaining  any  participation
therein or to reduce any amount received or receivable by such Issuing Lender or
Lender (or its  applicable  lending  or letter of credit  office)  with  respect
thereto; then, in any case, Company shall promptly pay to such Issuing Lender or
Lender,  upon receipt of the statement  referred to in the next  sentence,  such
additional  amount or amounts as may be  necessary  to  compensate  such Issuing
Lender or Lender for any such increased cost or reduction in amounts received or
receivable  hereunder.  Such Issuing Lender or Lender shall deliver to Company a
written statement,  setting forth in reasonable detail the basis for calculating
the  additional  amounts  owed to such  Issuing  Lender  or  Lender  under  this
subsection 3.6, which statement shall be conclusive and binding upon all parties
hereto absent manifest error.

3.7  Existing Letters of Credit.

     Notwithstanding  anything to the contrary  herein,  as of the Closing Date,
all of the  Existing  Letters of Credit  shall be deemed to be Letters of Credit
issued hereunder and shall be subject to all of the terms and provisions of this
Agreement,  including all terms and  provisions  applicable to Letters of Credit
under this Agreement. Each Lender having


                                       73
<PAGE>

Revolving Loan Exposure agrees that its  obligations  with respect to Letters of
Credit pursuant to subsection 3.3C shall include the Existing  Letters of Credit
as of the Closing Date. With respect to each Existing Letter of Credit,  for the
period  commencing on the Closing Date to and including the  expiration  date of
any such Existing  Letter of Credit,  Company shall pay all fees and commissions
set forth in subsection 3.2 at the times and in the manner set forth therein.

                                   SECTION 4.
                    CONDITIONS TO LOANS AND LETTERS OF CREDIT

     The  obligations  of Lenders to make Loans and the  issuance  of Letters of
Credit hereunder are subject to the satisfaction of the following conditions.

4.1  Conditions to Term Loans and Initial Revolving Loans and Swing Line Loans.

     The  obligations of Lenders to make the Term Loans and any Revolving  Loans
to be made on the Closing  Date are, in  addition  to the  conditions  precedent
specified in subsection 4.2, subject to prior or concurrent  satisfaction of the
following conditions:

     A. Loan Party Documents.  On or before the Closing Date, Company shall, and
shall cause each other Loan Party to,  deliver to Lenders (or to  Administrative
Agent for Lenders with sufficient originally executed copies, where appropriate,
for each Lender and its counsel) the  following  with respect to Company or such
Loan Party, as the case may be, each, unless otherwise noted,  dated the Closing
Date:

          (i) Certified  copies of the Certificate or Articles of  Incorporation
     of  such  Person,  together  with  a good  standing  certificate  from  its
     jurisdiction  of  incorporation  and each other  state,  province  or other
     jurisdiction in which such Person is qualified as a foreign  corporation to
     do  business  and,  to the  extent  requested  by  Administrative  Agent or
     Syndication  Agent a certificate  or other  evidence of good standing as to
     payment of any applicable  franchise or similar taxes from the  appropriate
     taxing  authority of each of such  jurisdictions,  each dated a recent date
     prior to the Closing Date;

          (ii) Copies of the Bylaws of such  Person,  Memoranda  and Articles of
     Association or equivalent governing documents,  certified as of the Closing
     Date by such Person's corporate secretary or an assistant secretary;

          (iii)  Resolutions of the Board of Directors (and, where  appropriate,
     of  the   shareholders)  of  such  Person  approving  and  authorizing  the
     execution,  delivery  and  performance  of the Loan  Documents  and Related
     Agreements to which it is a party,  certified as of the Closing Date by the
     corporate  secretary or an  assistant  secretary of such Person as being in
     full force and effect without modification or amendment;

          (iv)  Signature and  incumbency  certificates  of the officers of such
     Person executing the Loan Documents to which it is a party;

          (v) Executed originals of the Loan Documents to which such Person is a
     party; and

                                       74

<PAGE>

          (vi) Such other documents as Syndication Agent or Administrative Agent
     may reasonably request.

     B. No Material  Adverse  Effect.  Since  September 30, 1997 there shall not
have been (x) any adverse  change,  or any  development  involving a prospective
adverse  change,  in or affecting  the general  affairs,  industry,  management,
financial  position,  or results of operations  of Company and its  Subsidiaries
taken  as a whole  or (y) any  information  submitted  to  Syndication  Agent or
Administrative  Agent  that  proves  to  have  been  inaccurate,  incomplete  or
misleading,  and which,  in the case of either  clause  (x) or (y),  Syndication
Agent or Administrative Agent, in their reasonable judgment, deem material.

     C. Corporate and Capital Structure, Ownership, Management, Etc.

          (i)  Corporate  Structure.  The  corporate  structure of Company,  the
     Plessey Entities and their respective  Subsidiaries  after giving effect to
     the  Acquisition,  and all the  organizational  documents  of Company,  the
     Plessey  Entities and their  respective  Subsidiaries  shall be  reasonably
     satisfactory to Syndication Agent and Administrative Agent.

          (ii)  Capital  Structure  and  Ownership.  The capital  structure  and
     ownership  of  Company  and  the  Plessey  Entities  and  their  respective
     Subsidiaries,  both before and after giving effect to the  Acquisition  and
     shall be as set forth on Schedule 4.1C annexed hereto.

          (iii) Management;  Employment  Contracts.  The management structure of
     Company  after giving  effect to the  Acquisition  shall be as set forth on
     Schedule 4.1C annexed hereto, and Administrative  Agent shall have received
     copies of, and shall be satisfied  with the form and  substance of, any and
     all employment contracts with senior management of Company.

     D. Related Agreements;  Certificate of Designations.  Syndication Agent and
Administrative  Agent shall have received a fully  executed or conformed copy of
each Related  Agreement and the  Certificate of  Designations  and any documents
executed in connection with the  consummation of the  transactions  contemplated
thereby and each Related Agreement and the Certificate of Designations  shall be
in full force and effect and no provision  thereof  shall have been  modified or
waived  in  any  respect   reasonably   determined  by   Syndication   Agent  or
Administrative  Agent to be  material,  in each  case  without  the  consent  of
Administrative Agent and Syndication Agent.

                                       75

<PAGE>

     E. Matters Relating to Existing Indebtedness.

          (i)  Termination  of Existing  Credit  Agreements  and Related  Liens;
     Existing  Letters  of  Credit.  On  the  Closing  Date,   Company  and  its
     Subsidiaries  shall  have (a) repaid in full all  Indebtedness  outstanding
     under the  Existing  Credit  Agreements  (other  than that  portion  of the
     Existing  Indebtedness  permitted remain outstanding hereunder as reflected
     on Schedule 7.1 annexed hereto),  (b) terminated any commitments to lend or
     make other extensions of credit thereunder, (c) delivered to Administrative
     Agent all documents or instruments  necessary to release all Liens securing
     Indebtedness  or  other   obligations  of  Company  and  its   Subsidiaries
     thereunder, and (d) made arrangements satisfactory to Syndication Agent and
     Administrative  Agent with  respect to the  cancellation  of any letters of
     credit  outstanding  thereunder unless permitted or the issuance of Letters
     of Credit to support the obligations of Company and its  Subsidiaries  with
     respect thereto.

          (ii) Existing Indebtedness to Remain Outstanding. Administrative Agent
     shall have received an Officers' Certificate of Company stating that, after
     giving effect to the  transactions  described in this subsection  4.1E, the
     Indebtedness  of  Loan  Parties  and  the  Plessey   Entities  (other  than
     Indebtedness  under the Loan Documents) shall consist of (a)  approximately
     (pound)35,000,000 in aggregate principal amount of outstanding Indebtedness
     described in Part I of Schedule 7.1 annexed hereto and (b)  Indebtedness in
     an aggregate amount not to exceed  $60,000,000 in respect of Capital Leases
     described  in Part  II of  Schedule  7.1  annexed  hereto.  The  terms  and
     conditions  of all such  Indebtedness  shall  be in form  and in  substance
     satisfactory  to  Administrative  Agent,  Syndication  Agent and  Requisite
     Lenders.

     F.  Necessary  Governmental  Authorizations  and  Consents;  Expiration  of
Waiting  Periods,  Etc.  Company and its  Subsidiaries  shall have  obtained all
Governmental Authorizations and all consents of other Persons, in each case that
are  necessary  or  advisable  in  connection  with the  Acquisition,  the other
transactions contemplated by the Loan Documents and the Related Agreements,  and
the  continued  operation  of the  business  conducted  by Company,  the Plessey
Entities and their respective  Subsidiaries in substantially  the same manner as
conducted  prior  to  the  consummation  of the  Acquisition,  and  each  of the
foregoing  shall be in full force and effect,  in each case other than those the
failure to obtain or maintain  which,  either  individually or in the aggregate,
would  not  reasonably  be  expected  to have a  Material  Adverse  Effect.  All
applicable  waiting periods shall have expired without any action being taken or
threatened by any competent authority which would restrain, prevent or otherwise
impose  adverse  conditions  on the  Acquisition  or the financing  thereof.  No
action, request for stay, petition for review or rehearing,  reconsideration, or
appeal with respect to any of the foregoing  shall be pending,  and the time for
any applicable  agency to take action to set aside its consent on its own motion
shall have expired.

     G. Consummation of Acquisition.

          (i) The structure of the Acquisition shall be reasonably  satisfactory
     to Syndication  Agent and  Administrative  Agent pursuant to documentation,
     including,  without  limitation,  the  Acquisition  Agreement,   reasonably
     satisfactory  to  Syndication  Agent  and  Administrative   Agent  and  all
     conditions to the Acquisition  contained in such  documentation  shall have
     been satisfied or the fulfillment of such conditions shall have been waived
     with the consent of Syndication Agent and Administrative Agent.

                                       76

<PAGE>

          (ii) the  Acquisition  Agreement  shall be in full force and effect in
     all  material   respects  and  concurrently   with  the  Closing  Date  the
     Acquisition shall have become effective in accordance with the terms of the
     Acquisition Agreement;

          (iii) The aggregate cash  consideration  paid to the holders of equity
     interests  in the Plessey  Entities in respect of such equity  interests in
     connection with the Acquisition shall not exceed $225,000,000;

          (iv)   Transaction   Costs   shall   not   exceed   $15,000,000,   and
     Administrative  Agent shall have received  evidence to its  satisfaction to
     such effect;

          (v) Administrative Agent shall have received an Officers'  Certificate
     of Company to the effect set forth in clauses  (i)-(iv)  above and  stating
     that Company will proceed to consummate the  Acquisition  immediately  upon
     the making of the initial Loans; and

          (vi) all security  interests in and Liens on the assets of the Plessey
     Entities  shall have been  terminated  and  released  other than  Permitted
     Encumbrances and Administrative Agent shall have received all such releases
     and evidence thereof as may have been requested by Administrative  Agent or
     Syndication   Agent,   which  releases  shall  be  in  form  and  substance
     satisfactory to Syndication Agent.

     H. Closing Date Mortgages;  Closing Date Mortgage  Policies;  Environmental
Indemnity;  Etc.  Administrative Agent shall have received from Company and each
applicable Subsidiary Guarantor:

          (i) Closing Date  Mortgages.  Fully executed and notarized  Mortgages,
     debentures   or   equivalent   agreements   reasonably    satisfactory   to
     Administrative  Agent and Syndication Agent (each a "Closing Date Mortgage"
     and,  collectively,  the  "Closing  Date  Mortgages"),  in proper  form for
     recording  in  all  appropriate  places  in all  applicable  jurisdictions,
     encumbering each Real Property Asset listed in Schedule 4.1H annexed hereto
     (each a "Closing Date Mortgaged Property" and,  collectively,  the "Closing
     Date Mortgaged Properties");

          (ii)  Opinions  of  Local  Counsel.   Subject  to  the  provisions  of
     subsection  6.10B  with  respect  to the  Bromont  Property,  an opinion of
     counsel (which counsel shall be reasonably  satisfactory to  Administrative
     Agent) in each  state,  province or other  jurisdiction  in which a Closing
     Date Mortgaged  Property is located with respect to the  enforceability  of
     the  form(s)  of Closing  Date  Mortgages  to be  recorded  in such  state,
     province or other  jurisdiction  and such other  matters as  Administrative
     Agent or Syndication Agent may reasonably request, in each case in form and
     substance  reasonably  satisfactory to Administrative Agent and Syndication
     Agent;

          (iii) Landlord Consents and Estoppels;  Recorded Leasehold  Interests.
     In the case of each Closing Date Mortgaged  Property  located in the United
     States of  America  consisting  of a  Leasehold  Property,  (a) a  Landlord
     Consent  and  Estoppel  with  respect  thereto and (b)  evidence  that such
     Leasehold Property is a Recorded Leasehold Interest;

          (iv) Title  Insurance.  With  respect to any  Closing  Date  Mortgaged
     Property


                                       77
<PAGE>

     located in the United States of America, (a) ALTA mortgagee title insurance
     policies or unconditional  commitments  therefor or equivalent  policies or
     commitments reasonably satisfactory to Administrative Agent and Syndication
     Agent (the "Closing Date  Mortgage  Policies")  issued by the Title Company
     with respect to the Closing Date Mortgaged  Properties  listed in Part A of
     Schedule  4.1H  annexed  hereto,  in amounts  not less than the  respective
     amounts  designated  therein  with respect to any  particular  Closing Date
     Mortgaged  Properties,  insuring fee simple title to, or a valid  leasehold
     interest in, as the case may be, each such Closing Date Mortgaged  Property
     vested  in such Loan  Party  and  assuring  Administrative  Agent  that the
     applicable  Closing  Date  Mortgages  create  valid and  enforceable  First
     Priority mortgage Liens on the respective Closing Date Mortgaged Properties
     encumbered  thereby,  subject only to a standard  survey  exception,  which
     Closing  Date  Mortgage  Policies  (1) shall  include  an  endorsement  for
     mechanics'  liens,  for future  advances  under this  Agreement and for any
     other matters reasonably  requested by Administrative  Agent or Syndication
     Agent and (2) shall provide for affirmative  insurance and such reinsurance
     as Administrative Agent or Syndication Agent may reasonably request, all of
     the   foregoing  in  form  and   substance   reasonably   satisfactory   to
     Administrative  Agent and Syndication Agent; and (b) evidence  satisfactory
     to Administrative  Agent and Syndication Agent that such Loan Party has (i)
     delivered to the Title Company all certificates and affidavits  required by
     the Title  Company in  connection  with the  issuance of the  Closing  Date
     Mortgage  Policies and (ii) paid to the Title Company or to the appropriate
     governmental  authorities all expenses and premiums of the Title Company in
     connection with the issuance of the Closing Date Mortgage  Policies and all
     recording and stamp taxes  (including  mortgage  recording  and  intangible
     taxes)  payable in connection  with recording the Closing Date Mortgages in
     the appropriate real estate records;

          (v)  Title  Reports.  With  respect  to each  Closing  Date  Mortgaged
     Property listed in Part B of Schedule 4.1H annexed  hereto,  a title report
     issued by the Title  Company  with respect  thereto (or title  certificate,
     report on title or equivalent  report with respect to any such Closing Date
     Mortgaged Property located outside the United States of America), dated not
     more than 30 days prior to the Closing  Date and  satisfactory  in form and
     substance to Administrative Agent and Syndication Agent;

          (vi) Copies of Documents  Relating to Title Exceptions.  Copies of all
     recorded  documents  listed  as  exceptions  to title in the  Closing  Date
     Mortgage Policies or in the title reports or title  certificates  delivered
     pursuant to subsection 4.1H(v);

          (vii) Matters Relating to U.S. Flood Hazard  Properties.  With respect
     to any Closing  Date  Mortgaged  Property  located in the United  States of
     America,  (a)  evidence,  which  may be in the  form  of a  letter  from an
     insurance  broker or a  municipal  engineer,  as to whether (1) any Closing
     Date Mortgaged Property is a Flood Hazard Property and (2) the community in
     which any such Flood  Hazard  Property is located is  participating  in the
     National Flood  Insurance  Program,  (b) if there are any such Flood Hazard
     Properties, such Loan Party's written acknowledgement of receipt of written
     notification from Administrative Agent (1) as to the existence of each such
     Flood  Hazard  Property  and (2) as to whether the  community in which each
     such Flood  Hazard  Property is located is  participating  in the  National
     Flood  Insurance  Program,  and (c) in the  event  any  such  Flood  Hazard
     Property is located in a community that  participates in the National Flood
     Insurance  Program,  evidence that Company has obtained flood  insurance in
     respect of such Flood  Hazard  Property  to the extent


                                       78

<PAGE>

     required under the applicable  regulations of the Board of Governors of the
     Federal Reserve System;

          (viii)   Real   Property   Taxes.   Evidence   satisfactory   to   the
     Administrative Agent and Syndication Agent of the payment by Company of all
     unpaid  real  property  taxes due and  payable  as of the  Closing  Date in
     respect of Closing Date Mortgaged Properties in which Company or any of its
     Subsidiaries has a fee simple title or a freehold interest;

          (ix) Special U.K. Matters. Delivery to Administrative Agent of (i) the
     results of H.M. Land Registry clear priority  searches in form 94B in favor
     of the  Administrative  Agent giving a priority  period of not less than 28
     days relating to Real Property  Assets  located in the United Kingdom owned
     by any Loan Party or Plessey  Entity or Subsidiary  thereof or (in the case
     of  unregistered  property) H.M. Land Charges  Registry  searches having an
     unexpired priority period of not less than 28 days in respect of all estate
     owners  since  the  date of the  root of title  with  any  entries  thereon
     certified as not affecting,  (ii) a duly completed and signed Land Registry
     application  form  A4 for  the  registration  of  the  U.K.  Guarantee  and
     Debenture  together  with a cheque made  payable to H.M.  Land  Registry in
     respect of the  registration  fee,  (iii) all title  deeds to the  property
     located in Wales and identified on Schedule 4.1H annexed  hereto,  and (iv)
     signed but  undated  Notices of Charge  addressed  to the  landlord of each
     Leasehold Property of Mitel Telecom together with a duplicate thereof; and

          (x) Environmental  Indemnity . If requested by Administrative Agent or
     Syndication Agent, an environmental  indemnity  agreement,  satisfactory in
     form and substance to  Administrative  Agent,  Syndication  Agent and their
     respective  counsel,  with respect to the indemnification of Administrative
     Agent and Lenders for any liabilities that may be imposed on or incurred by
     any of them as a result of any Hazardous Materials Activity.

     I. Security Interests in Collateral.  To the extent not otherwise satisfied
pursuant to subsection 4.1H, each of Syndication Agent and Administrative  Agent
shall have  received  evidence  satisfactory  to it that Company and  Subsidiary
Guarantors shall have taken or caused to be taken all such actions, executed and
delivered or caused to be executed and delivered all such agreements,  documents
and  instruments,  and made or caused to be made all such filings and recordings
(other than the filing or recording of items  described in clauses  (iii),  (iv)
and (v) below) that may be necessary or, in the opinion of Administrative  Agent
and  Syndication  Agent,  desirable  in order to  charge  or  create in favor of
Administrative  Agent, for the benefit of Lenders, a valid and (upon such filing
and recording)  perfected First Priority  security  interest in or first ranking
mortgage, hypothec or charge on the entire Collateral, subject only to Permitted
Encumbrances. Such actions shall include the following:

          (i)  Schedules to  Collateral  Documents.  Delivery to  Administrative
     Agent  of  accurate  and  complete  schedules  to  all  of  the  applicable
     Collateral Documents.

          (ii) Stock  Certificates and Instruments.  Delivery to  Administrative
     Agent of (a)  certificates  (which  certificates  shall be  accompanied  by
     irrevocable  undated  stock  powers,  duly  endorsed in blank and otherwise
     satisfactory in form and substance to  Administrative  Agent)  representing
     all capital stock pledged pursuant to the Company Master Pledge  Agreement,
     the Subsidiary Pledge Agreements  (U.S.),  the U.K. Guarantee and Debenture
     and (b) all promissory notes (including any Intercompany


                                       79
<PAGE>

     Notes) or, to the extent required to be delivered to  Administrative  Agent
     pursuant to the terms of the Collateral  Documents,  other  instruments (in
     each case duly endorsed,  where  appropriate,  in a manner  satisfactory to
     Administrative Agent) evidencing any Collateral;

          (iii)  Lien   Searches  and   Termination   Statements.   Delivery  to
     Administrative  Agent of (a) the  results  of a recent  search  by a Person
     satisfactory to  Administrative  Agent, of all effective  personal property
     financing  statements,  fixture  filings or other  similar  filings and all
     judgment and tax lien filings  which may have been made with respect to any
     personal or mixed  property of any Loan Party,  together with copies of all
     such filings  disclosed by such search,  and (b) termination  statements or
     other discharges,  as applicable,  duly executed by all applicable  Persons
     for filing in all applicable jurisdictions as may be necessary to terminate
     any effective  personal property financing  statements,  fixture filings or
     other  similar  filings  disclosed  in such  search  (other  than  any such
     personal property  financing  statements,  fixture filings or other similar
     flings in respect of Liens permitted to remain outstanding  pursuant to the
     terms of this Agreement);

          (iv)   Financing   Statements   and  Fixture   Filings.   Delivery  to
     Administrative  Agent of personal property financing  statements and, where
     appropriate,  fixture  filings,  and other similar filings duly executed by
     each  applicable Loan Party with respect to all personal and mixed property
     Collateral of such Loan Party,  for filing in all  jurisdictions  as may be
     necessary or, in the opinion of Syndication Agent and Administrative Agent,
     desirable  to perfect the  security  interests  created in such  Collateral
     pursuant to the Collateral Documents;

          (v) IP Collateral  Filings.  Delivery to  Administrative  Agent of all
     cover sheets or other  documents or  instruments  required to be filed with
     the PTO, the United States  Copyright  Office or equivalent  authorities in
     order to create or perfect Liens in respect of any IP Collateral; and

          (vi) Opinions of Local Counsel. Delivery to Administrative Agent of an
     opinion of counsel  (which  counsel  shall be  reasonably  satisfactory  to
     Syndication  Agent  and  Administrative  Agent)  under  the  laws  of  each
     jurisdiction  in which any Loan  Party or any  personal  or mixed  property
     Collateral  is located with respect to the creation and  perfection  of the
     security interests in favor of Administrative  Agent in such Collateral and
     such other matters governed by the laws of such jurisdiction regarding such
     security  interests  as  Syndication  Agent  and  Administrative  Agent may
     reasonably  request,  in  each  case  in  form  and  substance   reasonably
     satisfactory to Syndication Agent and Administrative Agent.

     J.  Certificates  of Title.  Administrative  Agent  shall  have  received a
Certificate of Title produced by Slaughter and May or a Report on Title produced
by Morgan Bruce relating to any interest owned by any of the Plessey Entities or
any of their respective  Subsidiaries in any real property located in the United
Kingdom and in  relation  to the  property  located in Wales and  identified  on
Schedule  4.1H  annexed  hereto  in  a  form  reasonably   satisfactory  to  the
Administrative Agent and Syndication Agent.

     K. Environmental Reports.  Administrative Agent shall have received reports
and other information,  in form, scope and substance satisfactory to Syndication
Agent and  Administrative  Agent,  regarding  environmental  matters relating to
Company,  the  Plessey


                                       80
<PAGE>

Entities and their  respective  Subsidiaries  and the Facilities,  which reports
shall include (i) a Phase I environmental  assessment for each of the Facilities
listed in Schedule  4.1K  annexed  hereto  (collectively,  the "Phase I Report")
which  (a)  conforms  to the  ASTM  Standard  Practice  for  Environmental  Site
Assessments:  Phase I  Environmental  Site Assessment  Process,  E 1527, (b) was
conducted by one or more environmental  consulting firms reasonably satisfactory
to  Administrative  Agent,  (c) includes an  assessment  of  asbestos-containing
materials at such  Facilities,  and (d)  includes an estimate of the  reasonable
worst-case  cost  of  investigating  and  remediating  any  Hazardous  Materials
Activity  identified  in the  Phase I Report  as  giving  rise to an  actual  or
potential violation of any Environmental Law or as presenting a material risk of
giving rise to a material  Environmental  Claim,  and (ii) a current  compliance
audit setting forth an assessment of Company's,  each Plessey Entity's and their
respective  Subsidiaries' and such Facilities'  current and past compliance with
Environmental  Laws and an estimate of the cost of rectifying any non-compliance
with current  Environmental  Laws identified  therein and the cost of compliance
with reasonably anticipated future Environmental Laws identified therein.

     L. Financial Statements;  Pro Forma Balance Sheet. On or before the Closing
Date,  Lenders  shall  have  received  from  Company  (i) each of the  financial
statements  listed in clauses  (i)  through  (iv) of  subsection  5.3 and,  with
respect to the items listed in clauses (i) and (ii) of subsection 5.3, certified
by the chief financial officer of Company that they fairly present the financial
condition  of Company and its  Subsidiaries  as at the dates  indicated  and the
results of their  operations  and their cash  flows for the  periods  indicated,
subject to changes  resulting from audit and normal  year-end  adjustments,  and
(ii) pro forma consolidated balance sheets of Company and its Subsidiaries as at
the Closing Date,  reflecting the consummation of the  Acquisition,  the related
financings and the other transactions contemplated by the Loan Documents and the
Related  Agreements,  which pro forma financial  statements shall be in form and
substance satisfactory to Lenders.

     M.  Financial  Projections.   Lenders  shall  have  received  from  Company
financial  projections for Company and its  Subsidiaries  after giving effect to
the  Acquisition  for a period of not less than six years  following the Closing
Date, which financial projections shall be in form and substance satisfactory to
Syndication Agent and Administrative Agent.

     N.  Material  Contracts.   All  Material  Contracts,   licenses,   permits,
franchises,  insurance  policies  and other  intangible  rights of Company,  the
Plessey  Entities  and  their  respective   Subsidiaries   shall  be  reasonably
satisfactory to Syndication Agent and Administrative Agent.

     O.  Solvency  Assurances.   On  the  Closing  Date,  Administrative  Agent,
Syndication  Agent and Lenders shall have  received (i) a letter from  Houlihan,
Lokey,  Howard & Zukin,  dated the Closing  Date and  addressed  to  Syndication
Agent,  Administrative Agent and Lenders, in form and substance  satisfactory to
Syndication Agent and Administrative Agent and with appropriate attachments, and
(ii) a Financial Condition Certificate dated the Closing Date,  substantially in
the form of Exhibit XII annexed hereto and with appropriate attachments, in each
case  demonstrating  that,  after  giving  effect  to  the  consummation  of the
Acquisition,  the related financings and the other transactions  contemplated by
the Loan Documents and the Related Agreements, Company will be Solvent.

     P. Evidence of Insurance.  Syndication Agent and Administrative Agent shall
have received a certificate  from Company's  insurance  broker or other evidence
satisfactory to Syndication  Agent and  Administrative  Agent that all insurance
required to be maintained


                                       81
<PAGE>

pursuant to subsection  6.4 is in full force and effect and that  Administrative
Agent on behalf of Lenders  has been named as  additional  insured  and/or  loss
payee thereunder to the extent required under subsection 6.4.

     Q.  Opinions  of  Counsel to Loan  Parties.  Lenders  and their  respective
counsel  shall  have  received  (i)  originally  executed  copies of one or more
favorable  written  opinions of Rubin Baum Levin  Constant &  Friedman,  special
United States  counsel for Loan Parties,  McCarthy  Tetrault,  special  Canadian
counsel  for Loan  Parties,  Morgan  Bruce,  special  British  counsel  for Loan
Parties,  Lagerlof & Leman,  special  Swedish  counsel  for Loan  Parties,  Lang
Michener,  special Ontario counsel for the Loan Parties,  Nigel Bennet,  special
Barbadian counsel for the Loan Parties,  Donald G. McIntyre,  general counsel to
Company, and Edward J. Silberhorn,  general counsel to the U.S. Loan Parties, in
form and substance reasonably satisfactory to Syndication Agent,  Administrative
Agent and their  respective  counsel,  dated as of the Closing  Date and setting
forth  substantially the matters in the opinions  designated in Exhibits VIII-A,
VIII-B,  VIII-C,  VIII-D,  VIII-E,  VIII-F,  VIII-G,  and VIII-H,  respectively,
annexed  hereto  and  as  to  such  other  matters  as  Syndication   Agent  and
Administrative Agent acting on behalf of Lenders may reasonably request and (ii)
evidence satisfactory to Syndication Agent and Administrative Agent that Company
has requested such counsel to deliver such opinions to Lenders.

     R. Opinions of  Syndication  Agents'  Counsel.  Lenders shall have received
originally  executed  copies  of one  or  more  favorable  written  opinions  of
O'Melveny & Myers LLP,  counsel to  Syndication  Agent,  dated as of the Closing
Date,  substantially  in the form of Exhibit  IX  annexed  hereto and as to such
other matters as  Syndication  Agent acting on behalf of Lenders may  reasonably
request.

     S.  Opinions of Counsel  Delivered  Under Related  Agreements.  Syndication
Agent and Administrative  Agent and their respective counsel shall have received
copies of each of the  opinions of counsel  delivered  to the parties  under the
Related Agreements, together with a letter from each such counsel (to the extent
not inconsistent with such counsel's  established internal policies) authorizing
Lenders to rely upon such opinion to the same extent as though it were addressed
to Lenders.

     T. Auditor's Letter.  Administrative  Agent shall have received an executed
Auditor's Letter.

     U. Actuary's Letter.  Administrative  Agent shall have received a certified
copy  of  the  executed  Actuary's  Letter  referred  to in  Schedule  5 of  the
Acquisition  Agreement  and a letter  addressed  to the Agents and Lenders  from
Company's actuary confirming the adequacy of the basis of the calculation of the
Transfer  Amount as provided in such  Actuary's  Letter,  which  letter shall be
satisfactory to Administrative Agent and Syndication Agent.

     V. Mitel AB. Mitel AB shall have filed an  application  for exemption  from
the relevant Swedish tax authority requesting  permission for Mitel AB to become
a Subsidiary  Guarantor  and grant a charge on all its assets to  Administrative
Agent  for the  benefit  of  Lenders,  which  application  shall  be in form and
substance reasonably satisfactory to Administrative Agent and Syndication Agent.

     W.  Intercompany  Notes.  Administrative  Agent and Syndication Agent shall
have received  original executed copies of the Discounted Note Documents and the
Intergroup Loan Agreement,  in each case including all Intercompany Notes issued
thereunder to be pledged to

                                       82
<PAGE>

the Administrative Agent pursuant to the Collateral  Documents,  which documents
shall  be in  form  and  substance  satisfactory  to  Administrative  Agent  and
Syndication Agent.

     X. Fees.  Company shall have paid to  Administrative  Agent and Syndication
Agent the fees payable on the Closing Date referred to in subsection 2.3.

     Y. Representations and Warranties; Performance of Agreements. Company shall
have delivered to  Administrative  Agent an Officers'  Certificate,  in form and
substance  satisfactory to Syndication  Agent and  Administrative  Agent, to the
effect that the  representations  and  warranties  in Section 5 hereof are true,
correct and complete in all  material  respects on and as of the Closing Date to
the same  extent as though  made on and as of that date (or,  to the extent such
representations and warranties specifically relate to an earlier date, that such
representations  and warranties were true,  correct and complete in all material
respects on and as of such earlier date) and that Company  shall have  performed
in all material  respects all agreements and satisfied all conditions which this
Agreement  provides  shall be  performed  or  satisfied  by it on or before  the
Closing  Date  except as  otherwise  disclosed  to and  agreed to in  writing by
Administrative Agent, Syndication Agent and Requisite Lenders.

     Z. Completion of Proceedings.  All corporate and other proceedings taken or
to be taken in  connection  with the  transactions  contemplated  hereby and all
documents  incidental  thereto not  previously  found  acceptable by Syndication
Agent or Administrative Agent, acting on behalf of Lenders, and their respective
counsel shall be  satisfactory  in form and substance to  Syndication  Agent and
Administrative  Agent and such counsel, and Syndication Agent and Administrative
Agent and such counsel  shall have  received all such  counterpart  originals or
certified copies of such documents as Syndication Agent and Administrative Agent
may reasonably request.

4.2  Conditions to All Loans.

     The  obligations  of Lenders to make Loans on each Funding Date are subject
to the following further conditions precedent:

          A. Administrative  Agent shall have received before that Funding Date,
     in  accordance  with the  provisions  of  subsection  2.1B,  an  originally
     executed  Notice of Borrowing,  in each case signed by the chief  executive
     officer,  the chief financial officer or the treasurer of Company or by any
     executive  officer  of  Company  designated  by any of the  above-described
     officers  on behalf of Company  in a writing  delivered  to  Administrative
     Agent.

          B. As of that Funding Date:

               (i) The  representations  and warranties  contained herein and in
          the other Loan  Documents  shall be true,  correct and complete in all
          material respects on and as of that Funding Date to the same extent as
          though  made  on and as of  that  date,  except  to  the  extent  such
          representations and warranties specifically relate to an earlier date,
          in which  case such  representations  and  warranties  shall have been
          true,  correct and complete in all material respects on and as of such
          earlier date;

               (ii) No event  shall have  occurred  and be  continuing  or would
          result from the  consummation  of the borrowing  contemplated  by such
          Notice of  Borrowing  that

                                       83

<PAGE>

          would constitute an Event of Default or a Potential Event of Default;

               (iii)  Each Loan  Party  shall  have  performed  in all  material
          respects  all  agreements  and  satisfied  all  conditions  which this
          Agreement  provides shall be performed or satisfied by it on or before
          that Funding Date;

               (iv) No order,  judgment  or decree of any court,  arbitrator  or
          governmental  authority shall purport to enjoin or restrain any Lender
          from making the Loans to be made by it on that Funding Date;

               (v) The making of the Loans  requested on such Funding Date shall
          not violate any law including Regulation G, Regulation T, Regulation U
          or  Regulation  X of the Board of  Governors  of the  Federal  Reserve
          System; and

               (vi) There shall not be pending or, to the  knowledge of Company,
          threatened,  any action, suit, proceeding,  governmental investigation
          or arbitration against or affecting Company or any of its Subsidiaries
          or any  property  of Company or any of its  Subsidiaries  that has not
          been  disclosed by Company in writing  pursuant to  subsection  5.6 or
          6.1(x)  prior to the making of the last  preceding  Loans (or,  in the
          case of the initial Loans,  prior to the execution of this Agreement),
          and there shall have occurred no  development  not so disclosed in any
          such  action,   suit,   proceeding,   governmental   investigation  or
          arbitration  so disclosed,  that,  in either event,  in the opinion of
          Administrative Agent, Syndication Agent or of Requisite Lenders, would
          reasonably  be  expected  to have a Material  Adverse  Effect;  and no
          injunction  or other  restraining  order shall have been issued and no
          hearing to cause an injunction or other restraining order to be issued
          shall be pending  or  noticed  with  respect  to any  action,  suit or
          proceeding seeking to enjoin or otherwise prevent the consummation of,
          or to  recover  any  damages  or  obtain  relief as a result  of,  the
          transactions  contemplated  by this  Agreement  or the making of Loans
          hereunder.

4.3  Conditions to Letters of Credit.

     The  issuance  of any  Letter  of  Credit  hereunder  (whether  or not  the
applicable  Issuing  Lender is  obligated  to issue  such  Letter of  Credit) is
subject to the following conditions precedent:

     A. On or  before  the date of  issuance  of the  initial  Letter  of Credit
pursuant to this Agreement, the initial Loans shall have been made.

     B.  On  or  before  the  date  of   issuance  of  such  Letter  of  Credit,
Administrative  Agent shall have received,  in accordance with the provisions of
subsection  3.1B(i),  an originally  executed  Request for Issuance of Letter of
Credit, in each case signed by the chief executive officer,  the chief financial
officer  or the  treasurer  of Company  or by any  executive  officer of Company
designated  by any of the  above-described  officers  on behalf of  Company in a
writing delivered to Administrative  Agent,  together with all other information
specified in subsection  3.1B(i) and such other  documents or information as the
applicable Issuing Lender may reasonably require in connection with the issuance
of such Letter of Credit.

     C. On the  date of  issuance  of such  Letter  of  Credit,  all  conditions
precedent  described in subsection 4.2B shall be satisfied to the same extent as
if the  issuance of such Letter of Credit were the making of a Loan and the date
of issuance of such Letter of Credit

                                       84

<PAGE>

were a Funding Date.

                                   SECTION 5.
                    COMPANY'S REPRESENTATIONS AND WARRANTIES

     In order to induce  Lenders  to enter into this  Agreement  and to make the
Loans,  to induce Issuing Lenders to issue Letters of Credit and to induce other
Lenders to purchase participations  therein,  Company represents and warrants to
each Lender, on the date of this Agreement, on each Funding Date and on the date
of issuance of each Letter of Credit,  that the following  statements  are true,
correct and complete:

5.1  Organization,   Powers,   Qualification,   Good   Standing,   Business  and
     Subsidiaries.

     A.  Organization  and Powers.  Each Loan Party is a corporation  or limited
liability  company duly organized,  validly  existing and in good standing under
the laws of its  jurisdiction  of  incorporation  as  specified  in Schedule 5.1
annexed hereto.  Each Loan Party has all requisite corporate power and authority
to own and operate its properties, to carry on its business as now conducted and
as  proposed  to be  conducted,  to enter into the Loan  Documents  and  Related
Agreements to which it is a party and to carry out the transactions contemplated
thereby.

     B.  Qualification  and Good  Standing.  Each Loan Party is  qualified to do
business and in good standing in every jurisdiction where its assets are located
and  wherever  necessary to carry out its  business  and  operations,  except in
jurisdictions  where the failure to be so qualified or in good  standing has not
had and will not have a Material Adverse Effect.

     C. Conduct of Business.  Company and its Subsidiaries are, and after giving
effect to the  Acquisition  on the  Closing  Date will be,  engaged  only in the
businesses permitted to be engaged in pursuant to subsection 7.14.

     D. Subsidiaries. The Plessey Entities and their respective Subsidiaries and
the  Subsidiaries of Company are each identified in Schedule 5.1 annexed hereto.
The capital  stock of each  Plessey  Entity,  each  Subsidiary  thereof and each
Subsidiary  of  Company  identified  in  Schedule  5.1  annexed  hereto  is duly
authorized,  validly  issued,  fully  paid  and  nonassessable  and none of such
capital stock  constitutes  Margin Stock.  Each Plessey Entity,  each Subsidiary
thereof and each Subsidiary of Company identified in Schedule 5.1 annexed hereto
is a corporation or limited liability  company duly organized,  validly existing
and  in  good  standing  under  the  laws  of  its  respective  jurisdiction  of
incorporation set forth therein, has all requisite corporate power and authority
to own and operate its  properties and to carry on its business as now conducted
and as proposed to be  conducted,  and is  qualified  to do business and in good
standing  in every  jurisdiction  where its  assets  are  located  and  wherever
necessary to carry out its business  and  operations,  in each case except where
failure to be so qualified or in good standing or a lack of such corporate power
and authority has not had and will not have a Material Adverse Effect.  Schedule
5.1 annexed hereto  correctly  sets forth the ownership  interest of the Plessey
Entities,   their  respective   Subsidiaries  and  each  Subsidiary  of  Company
identified therein, both before and after giving effect to the Acquisition.

     E. Permitted Acquisitions. Company and each Subsidiary making any Permitted
Acquisition  shall  have  the  corporate  power  to  consummate  such  Permitted
Acquisition  upon  the  consummation  thereof,  on the  terms  set  forth in any
applicable purchase agreement,


                                       85
<PAGE>

agreement of merger or other operative  agreement.  Upon the consummation of any
Permitted   Acquisition,   such  Permitted  Acquisition  shall  have  been  duly
authorized  by all  necessary  action  of  Company  and any of its  Subsidiaries
participating therein.

5.2  Authorization of Borrowing, etc.

     A. Authorization of Borrowing.  The execution,  delivery and performance of
the Loan Documents and the Related  Agreements  have been duly authorized by all
necessary  corporate  action  on the  part of each  Loan  Party  that is a party
thereto.

     B. No Conflict. The execution,  delivery and performance by Loan Parties of
the Loan Documents and the Related  Agreements to which they are parties and the
consummation  of the  transactions  contemplated  by the Loan Documents and such
Related Agreements and the consummation of any Permitted  Acquisition do not and
will  not (i)  violate  any  provision  of any law or any  governmental  rule or
regulation applicable to Company or any of its Subsidiaries,  the Certificate or
Articles of Incorporation or Bylaws (or comparable  organizational documents) of
Company or any of its Subsidiaries or any order, judgment or decree of any court
or other  agency of  government  binding on Company or any of its  Subsidiaries,
(ii)  conflict  with,  result in a breach of or  constitute  (with due notice or
lapse of time or both) a default under any Contractual  Obligation of Company or
any of its  Subsidiaries  (other  than,  with respect to the exercise of certain
remedies  under  the U.K.  Guarantee  and  Debenture,  as such  exercise  may be
affected by certain government contracts in the United Kingdom), (iii) result in
or require the creation or imposition of any Lien upon any of the  properties or
assets of Company or any of its Subsidiaries (other than any Liens created under
any of the Loan  Documents  in  favor  of  Administrative  Agent  on  behalf  of
Lenders),  or (iv)  require any  approval  of  stockholders  or any  approval or
consent of any Person under any Contractual  Obligation of Company or any of its
Subsidiaries,  except for such  approvals or consents which will be or have been
obtained on or before the Closing Date and disclosed in writing to Lenders.

     C. Governmental Consents.  The execution,  delivery and performance by Loan
Parties  of the Loan  Documents  and the  Related  Agreements  to which they are
parties and the application of the proceeds of the Loans and the consummation of
the transactions  contemplated by the Loan Documents and such Related Agreements
do not and will not require any  registration  with,  consent or approval of, or
notice  to,  or  other  action  to,  with or by,  any  multi-national,  federal,
provincial,   state,  municipal,   local  or  other  governmental  authority  or
regulatory  body except for such consents and approvals  that have been obtained
on or prior to the  Closing  Date.  As of the  Closing  Date,  all  consents  or
approvals  from  or  notice  to or  filing  with  any  multi-national,  federal,
provincial,  state,  municipal,  local or other (domestic or foreign) regulatory
authority  required to be obtained on or before such date in connection with the
Acquisition  or  documents   referred  to  in  the  previous  sentence  and  the
transactions  contemplated  thereby will have been accomplished in compliance in
all material respects with applicable laws and regulations.

     D. Binding  Obligation.  Each of the Loan Documents and Related  Agreements
has been duly  executed and delivered by each Loan Party that is a party thereto
and is the legally valid and binding obligation of such Loan Party,  enforceable
against such Loan Party in accordance with its respective  terms,  except as may
be limited by bankruptcy, insolvency, reorganization, moratorium or similar laws
relating to or limiting  creditors' rights generally or by equitable  principles
relating to enforceability.

                                       86
<PAGE>

5.3  Financial Condition.

     Company has  heretofore  delivered  to Lenders,  at Lenders'  request,  the
following  financial  statements and information:  (i) the audited  consolidated
balance sheets of Company and its Subsidiaries  (other than the Plessey Entities
and  their  respective  Subsidiaries)  as at  March  28,  1997  and the  related
consolidated statements of income, stockholders equity and cash flows of Company
and its  Subsidiaries  (other than the  Plessey  Entities  and their  respective
Subsidiaries)  for the Fiscal Year then ended,  (ii) the unaudited  consolidated
balance sheets of Company and its Subsidiaries  (other than the Plessey Entities
and their  respective  Subsidiaries)  for the  period  from  March  28,  1997 to
December 31, 1997 and the related unaudited  consolidated  statements of income,
stockholders'  equity and cash flows of Company and its Subsidiaries (other than
the Plessey Entities and their respective Subsidiaries) for the nine months then
ended, (iii) pursuant to Schedule 4.1L annexed hereto, the financial  statements
and  financial   schedules  of  the  Plessey   Entities  and  their   respective
Subsidiaries  with the  exception  of the  dormant  companies  set forth on such
Schedule,  and (iv)  pursuant to Schedule  4.1L annexed  hereto,  the  unaudited
financial  statements of the Plessey Entities and their respective  Subsidiaries
for the period from March 31, 1997 to December 31, 1997. All such statements set
forth in clauses (i) and (ii) above were  prepared in  conformity  with GAAP and
all such  statements  set forth in clauses (iii) and (iv) above were prepared in
conformity with accounting  principles  generally accepted in the United Kingdom
or the applicable country, as the case may be, and all such statements set forth
in clauses (i) and (ii) fairly present, in all material respects,  the financial
position of the entities described in such financial statements taken as a whole
as at the respective  dates thereof and the results of operations and cash flows
of the entities  described therein taken as a whole for each of the periods then
ended,  subject,  in the case of any such  unaudited  financial  statements,  to
changes  resulting  from  audit  and  normal  year-end  adjustments.   All  such
statements  set forth in clauses  (iii) and (iv) above  fairly  present,  in all
material  respects,  the financial position of the entities described therein in
such financial  statements as at the respective dates thereof and the results of
operations  and cash flows of the  entities  described  therein  for each of the
periods  then  ended,  subject,  in the  case of any  such  unaudited  financial
statements,  to changes  resulting from audit and normal  year-end  adjustments.
Company does not (and will not  following  the funding of the initial  Loans and
the consummation of the Acquisition) have any Contingent  Obligation  (except as
set forth on Schedule 7.4 annexed hereto), contingent liability or liability for
taxes,  long-term lease or unusual  forward or long-term  commitment that is not
reflected in the foregoing  financial  statements or the notes thereto and which
in  any  such  case  is  material  in  relation  to  the  business,  operations,
properties,  assets,  condition (financial or otherwise) or prospects of Company
or any of its Subsidiaries taken as a whole.

5.4  No Material Adverse Change; No Restricted Junior Payments.

     Since September 30, 1997 and assuming  consummation of the Acquisition,  no
event or change has occurred that has caused or evidences, either in any case or
in the aggregate,  a Material  Adverse  Effect.  Neither  Company nor any of its
Subsidiaries has directly or indirectly declared,  ordered, paid or made, or set
apart any sum or property for, any Restricted  Junior Payment or agreed to do so
except as permitted by subsection 7.5.


                                       87
<PAGE>

5.5  Title to Properties; Liens; Real Property.

     A. Title to Properties;  Liens. Each Loan Party and each Subsidiary thereof
has (i) good,  sufficient  and legal title to (in the case of fee  interests  in
real  property),  (ii) valid  leasehold  interests  in (in the case of leasehold
interests in real or personal property),  or (iii) good title to (in the case of
all other  personal  property),  all of their  respective  properties and assets
reflected in the financial  statements  referred to in subsection  5.3 or in the
most recent financial  statements  delivered pursuant to subsection 6.1, in each
case except for assets  disposed of since the date of such financial  statements
in the ordinary course of business or as otherwise  permitted  under  subsection
7.7. Except as permitted by this  Agreement,  all such properties and assets are
free and clear of Liens.

     B. Real  Property.  As of the Closing  Date,  Schedule  5.5 annexed  hereto
contains  a true,  accurate  and  complete  list  of (i)  all  fee and  freehold
properties  of each  Loan  Party  and its  Subsidiaries  and  (ii)  all  leases,
subleases or assignments of leases (together with all amendments, modifications,
supplements, renewals or extensions of any thereof) affecting each Real Property
Asset of any Loan Party,  regardless  of whether such Loan Party is the landlord
or tenant  (whether  directly or as an assignee or successor in interest)  under
such lease, sublease or assignment.  Except as specified in Schedule 5.5 annexed
hereto,  each  agreement  listed in  clause  (ii) of the  immediately  preceding
sentence is in full force and effect and Company does not have  knowledge of any
default that has occurred and is continuing thereunder,  and each such agreement
constitutes  the legally valid and binding  obligation of each  applicable  Loan
Party,  enforceable against such Loan Party in accordance with its terms, except
as  enforcement  may  be  limited  by  bankruptcy,  insolvency,  reorganization,
moratorium or similar laws relating to or limiting  creditors'  rights generally
or by equitable principles.

5.6  Litigation; Adverse Facts.

     Except as set forth in Schedule 5.6 annexed  hereto,  there are no actions,
suits, proceedings,  arbitrations or governmental investigations (whether or not
purportedly on behalf of Company,  any Plessey Entity or any of their respective
Subsidiaries) at law or in equity, or before or by any federal, state, municipal
or  other  governmental  department,   commission,   board,  bureau,  agency  or
instrumentality,  domestic or foreign (including any Environmental  Claims) that
are pending or, to the  knowledge  of Company,  threatened  against or affecting
Company,  any  Plessey  Entity or any of their  respective  Subsidiaries  or any
property of Company,  any Plessey Entity or their  respective  Subsidiaries  and
that,  individually or in the aggregate,  could reasonably be expected to result
in a Material  Adverse  Effect.  None of Company,  any Plessey  Entity or any of
their  respective  Subsidiaries  (i)  is in  violation  of any  applicable  laws
(including  Environmental  Laws) that,  individually or in the aggregate,  could
reasonably  be  expected  to result in a  Material  Adverse  Effect,  or (ii) is
subject  to  or  in  default  with  respect  to  any  final  judgments,   writs,
injunctions,  decrees, rules or regulations of any court or any federal,  state,
municipal or other governmental department, commission, board, bureau, agency or
instrumentality,  domestic or foreign,  that,  individually or in the aggregate,
could reasonably be expected to result in a Material Adverse Effect.



                                       88
<PAGE>

5.7  Payment of Taxes.

     Except to the extent  permitted by subsection  6.3, (i) all tax returns and
reports of Company and its  Subsidiaries  and of the Plessey  Entities listed on
Part A of  Schedule  4.1L  required  to be filed by any of them have been timely
filed,  and all taxes  shown on such tax  returns to be due and  payable and all
assessments,   fees  and  other  governmental   charges  upon  Company  and  its
Subsidiaries  and such Plessey  Entities and upon their  respective  properties,
assets,  income,  businesses and franchises  which are due and payable have been
paid when due and payable  and (ii) to the best  knowledge  of Company,  all tax
returns and reports of the Plessey  Entities  listed on Part B of Schedule  4.1L
required to be filed by any of them have been timely filed,  and all taxes shown
on such tax returns to be due and payable  and all  assessments,  fees and other
governmental  charges  upon such  Plessey  Entities  and upon  their  respective
properties,  assets, income, businesses and franchises which are due and payable
have been paid when due and payable. Company knows of no proposed tax assessment
against  Company,  any Plessey  Entity or any of their  respective  Subsidiaries
which is not being  actively  contested by Company,  such Plessey Entity or such
Subsidiary  in good faith and by  appropriate  proceedings;  provided  that such
reserves  or other  appropriate  provisions,  if any,  as shall be  required  in
conformity with GAAP shall have been made or provided therefor.

5.8  Performance  of  Agreements;   Materially  Adverse   Agreements;   Material
     Contracts.

     A.  None  of  Company,  any  Plessey  Entity  or  any of  their  respective
Subsidiaries is in default in the performance,  observance or fulfillment of any
of the obligations,  covenants or conditions contained in any of its Contractual
Obligations,  and no  condition  exists  that,  with the giving of notice or the
lapse of time or  both,  would  constitute  such a  default,  except  where  the
consequences, direct or indirect, of such default or defaults, if any, would not
have a Material Adverse Effect.

     B.  None  of  Company,  any  Plessey  Entity  or  any of  their  respective
Subsidiaries  is a  party  to or is  otherwise  subject  to  any  agreements  or
instruments or any charter or other internal restrictions which, individually or
in the aggregate,  could  reasonably be expected to result in a Material Adverse
Effect.

     C.  Schedule  5.8  contains a true,  correct and  complete  list of all the
Material  Contracts  in effect on the  Closing  Date.  Except  as  described  on
Schedule  5.8, all such  Material  Contracts are in full force and effect and no
material defaults currently exist thereunder.

5.9  Governmental Regulation.

     None of Company, any Plessey Entity or any of their respective Subsidiaries
is subject to regulation  under the Public Utility  Holding Company Act of 1935,
the Federal Power Act, the Interstate Commerce Act or the Investment Company Act
of 1940 or under any other  federal  or state  statute or  regulation  which may
limit its ability to incur Indebtedness or which may otherwise render all or any
portion of the Obligations unenforceable.

                                       89

<PAGE>

5.10 Securities Activities.

     A.  None  of  Company,  any  Plessey  Entity  or  any of  their  respective
Subsidiaries is engaged principally,  or as one of its important activities,  in
the business of extending  credit for the purpose of  purchasing or carrying any
Margin Stock.

     B. Following application of the proceeds of each Loan, not more than 25% of
the  value  of the  assets  (either  of  Company  only  or of  Company  and  its
Subsidiaries  on a  consolidated  basis) subject to the provisions of subsection
7.2  or  7.7 or  subject  to any  restriction  contained  in  any  agreement  or
instrument  between  Company  and any  Lender or any  Affiliate  of any  Lender,
relating to Indebtedness  and within the scope of subsection 8.2, will be Margin
Stock.

5.11 Employee Benefit Plans.

     A. Except as set forth in Schedule 5.11,  each Loan Party and each of their
respective  ERISA  Affiliates  are in material  compliance  with all  applicable
provisions  and   requirements  of  ERISA  and  the  regulations  and  published
interpretations  thereunder with respect to each U.S. Employee Benefit Plan, and
have performed all of their  obligations  under each U.S. Employee Benefit Plan,
except  where  noncompliance  or  failure  to perform  could not  reasonably  be
expected to have a Material Adverse Effect.  Each Loan Party and each Subsidiary
is in material  compliance  with all applicable  provisions and  requirements of
relevant law with respect to each Foreign  Benefit Plan,  and have performed all
of their obligations under each Foreign Benefit Plan, except where noncompliance
or  failure to  perform  could not  reasonably  be  expected  to have a Material
Adverse Effect.

     B. Except as set forth in Schedule  5.11,  (i) each U.S.  Employee  Benefit
Plan which is intended to qualify under Section  401(a) of the Internal  Revenue
Code is so  qualified  and (ii) each  Foreign  Benefit Plan which is intended to
qualify for beneficial tax treatment  under the laws of the relevant  country is
so qualified.

     C.  Except as set forth in  Schedule  5.11,  no ERISA  Event and no Foreign
Benefit  Plan Event has occurred or is  continuing  in respect of which there is
any outstanding  liability of any Loan Party,  any of its Subsidiaries or any of
their  respective  ERISA  Affiliates,  except  where such ERISA Event or Foreign
Benefit Plan Event could not  reasonably be expected to have a Material  Adverse
Effect.  No ERISA Event or Foreign Benefit Plan Event is reasonably  expected to
occur.

     D.  Except to the  extent  required  under  Section  4980B of the  Internal
Revenue Code or except as set forth in Schedule 5.11 annexed hereto, no Employee
Benefit  Plan  provides  health or welfare  benefits  (through  the  purchase of
insurance or  otherwise)  for any retired or former  employee of any Loan Party,
any of its Subsidiaries or any of their respective ERISA Affiliates.

     E. Except as set forth on Schedule  5.11 annexed  hereto,  all Pension Plan
contributions  required  under  applicable  law have been made, and each Pension
Plan is fully  funded on an ongoing  basis  (including,  where  applicable,  the
making of adequate  contributions  to a pension  insurance  scheme in respect of
employees  covered by a Foreign Pension Plan).  As of the most recent  valuation
date for any U.S. Pension Plan, the amount of unfunded  benefit  liabilities (as
defined in Section  4001(a)(18) of ERISA),  individually or in

                                       90

<PAGE>

the  aggregate  for all U.S.  Pension  Plans  (excluding  for  purposes  of such
computation  any U.S.  Pension Plans with respect to which assets exceed benefit
liabilities),  does not exceed $1,000,000.  Except as set forth on Schedule 5.11
annexed  hereto,  no Loan  Party and no  Subsidiary  would  incur  any  material
liability upon the termination of any Foreign Pension Plan.

     F. As of the most recent  valuation  date for each  Multiemployer  Plan for
which the  actuarial  report is available,  the potential  liability of the Loan
Parties, their respective Subsidiaries and their respective ERISA Affiliates for
a complete  withdrawal  from such  Multiemployer  Plan  (within  the  meaning of
Section 4203 of ERISA),  when  aggregated  with such  potential  liability for a
complete withdrawal from all Multiemployer Plans, based on information available
pursuant to Section 4221(e) of ERISA, does not exceed $1,000,000.

5.12 Certain Fees.

     No broker's or finder's fee or  commission  will be payable with respect to
this  Agreement  or any of the  transactions  contemplated  hereby,  and Company
hereby  indemnifies  Lenders  against,  and  agrees  that it will  hold  Lenders
harmless from, any claim,  demand or liability for any such broker's or finder's
fees alleged to have been incurred in  connection  herewith or therewith and any
expenses  (including  reasonable  fees,  expenses and  disbursements of counsel)
arising in connection with any such claim, demand or liability.

5.13 Environmental Protection.

     Except as set forth in Schedule 5.13 annexed hereto:

          (i) no  Loan  Party  nor  any of its  Subsidiaries  nor  any of  their
     respective  Facilities or operations are subject to any outstanding written
     order,  consent decree or settlement  agreement with any Person relating to
     (a)  any  Environmental  Law,  (b)  any  Environmental  Claim,  or (c)  any
     Hazardous Materials Activity;

          (ii) no Loan Party nor any of its Subsidiaries has received any letter
     or request for information  from an  environmental  regulatory  agency with
     jurisdiction over any Facility investigating the potential for or existence
     of Releases either at the Facility or at a related off-site location.

          (iii) there are and, to Company's knowledge,  have been no conditions,
     occurrences,  or Hazardous  Materials  Activities which could reasonably be
     expected to form the basis of an Environmental Claim against any Loan Party
     or any of its Subsidiaries;

          (iv) Company maintains an environmental  management system for its and
     each of its  Subsidiaries'  operations  that  demonstrates  a commitment to
     environmental  compliance  and includes  procedures  for (a)  preparing and
     updating written compliance  manuals covering  pertinent  regulatory areas,
     (b)  tracking  changes  in  applicable  Environmental  Laws  and  modifying
     operations  to  comply  with  new  requirements  thereunder,  (c)  training
     employees to comply with applicable environmental requirements and updating
     such training as necessary,  (d)  performing  regular  internal  compliance
     audits  of each  Facility  and  ensuring  correction  of any  incidents  of
     non-compliance  detected by means of such  audits,  and (e)  reviewing  the
     compliance status of off-site waste disposal facilities; and

                                       91

<PAGE>

          (v)  compliance  with all  current or  reasonably  foreseeable  future
     requirements pursuant to or under Environmental Laws will not, individually
     or in the  aggregate,  have a  reasonable  possibility  of giving rise to a
     Material Adverse Effect.

     Notwithstanding  anything in this subsection 5.13 to the contrary, no event
or condition has occurred or is occurring  with respect to any Loan Party or any
of its Subsidiaries  relating to any Environmental Law, any Release of Hazardous
Materials,  or any Hazardous Materials Activity,  including any matter disclosed
on Schedule 5.13 annexed  hereto,  any Loan Party which  individually  or in the
aggregate  has had or could  reasonably  be expected to have a Material  Adverse
Effect.

5.14 Employee Matters.

     There is no strike or work  stoppage in existence or  threatened  involving
Company,  any Plessey Entity or any of their respective  Subsidiaries that could
reasonably be expected to have a Material Adverse Effect.

5.15 Solvency.

     Each Loan Party is and, upon the incurrence of any Obligations by such Loan
Party on any date on which this representation is made, will be, Solvent.

5.16 Matters Relating to Collateral.

     A. Creation,  Perfection and Priority of Liens.  The execution and delivery
of the Collateral Documents by Loan Parties, together with (i) the actions taken
on or prior to the date hereof pursuant to subsections  4.1H,  4.1I, 6.8 and 6.9
and (ii) the  delivery to  Administrative  Agent of any Pledged  Collateral  not
delivered to  Administrative  Agent at the time of execution and delivery of the
applicable  Collateral  Document  (all of which Pledged  Collateral  has been so
delivered)  are  effective  to create in favor of  Administrative  Agent for the
benefit of Lenders,  as security  for the  respective  Secured  Obligations  (as
defined in the applicable  Collateral Document in respect of any Collateral),  a
valid and (except as expressly  provided in the U.K.  Guarantee  and  Debenture)
perfected  First  Priority  Lien on all of the  Collateral,  and all filings and
other actions  necessary or desirable to perfect and maintain the perfection and
First  Priority  status of such Liens have been duly made or taken and remain in
full force and effect,  other than (a) the filing of any UCC financing
statements or similar personal  property or real property filings  delivered to
Administrative Agent for filing (but not yet filed), (b) the  periodic  filing
of UCC or similar continuation  statements  in  respect  of UCC  financing
statements  or similar filings filed by or on behalf of Administrative Agent and
(c) the actions taken after the date hereof referred to in Part A of Schedule
5.16 in respect of Collateral located in the United Kingdom.

     B. Governmental Authorizations. No authorization,  approval or other action
by, and no notice to or filing with,  any  governmental  authority or regulatory
body is  required  for  either  (i) the pledge or grant by any Loan Party of the
Liens purported to be created in favor of  Administrative  Agent pursuant to any
of the Collateral  Documents or (ii) the exercise by Administrative Agent of any
rights or remedies in respect of any Collateral (whether specifically granted or
created  pursuant to any of the Collateral  Documents or created or provided for
by  applicable  law),  except (a) for  filings  or  recordings  contemplated  by
subsection  5.16A,  (b) the foregoing does not apply with respect to remedies as
they may be affected by certain  government  contracts in the United Kingdom and
(c) as may be  required,  in  connection  with the  disposition  of any  Pledged
Collateral, by laws generally affecting the


                                       92
<PAGE>

offering and sale of securities.

     C. Absence of  Third-Party  Filings.  Except such as may have been filed in
favor of  Administrative  Agent as  contemplated  by  subsection  5.16A,  (i) no
effective UCC financing statement, fixture filing or other instrument similar in
effect  covering all or any part of the  Collateral  is on file in any filing or
recording office and (ii) no effective filing covering all or any part of the IP
Collateral  is on file in the PTO or the United States  Copyright  Office or any
equivalent office or central registry in any other country.

     D. Margin Regulations. The pledge of the Pledged Collateral pursuant to the
Collateral  Documents  does not violate  Regulation G, T, U or X of the Board of
Governors of the Federal Reserve System.

     E.  Information   Regarding   Collateral.   All  information   supplied  to
Administrative  Agent by or on behalf of any Loan Party  with  respect to any of
the  Collateral  (in each case taken as a whole with  respect to any  particular
Collateral) is accurate and complete in all material respects.

     F. Intellectual Property.  Each Loan Party and its Subsidiaries own, or are
licensed to use, all  Intellectual  Property.  Schedule 5.16 annexed hereto,  as
such  Schedule  may be modified  by Company to include  any  patent,  trademark,
copyright  registration  and application  therefor  acquired or held by any such
Person, lists all patents, trademark and copyright registration and applications
therefor of each Loan Party and its Subsidiaries (including, each Plessey Entity
and its Subsidiaries).  No claim has been asserted by any Person with respect to
the use of any Intellectual Property, or challenging or questioning the validity
or effectiveness  of any Intellectual  Property and neither Company knows of any
valid  basis for any such claim  which,  in either  case,  could  reasonably  be
expected to result in a Material  Adverse  Effect.  The use of the  Intellectual
Property by each Loan Party and its Subsidiaries does not infringe on the rights
of any  Person,  subject to such  claims  and  infringements  as do not,  in the
aggregate,  give rise to any  liability  on the part of any Loan Party or any of
its  Subsidiaries  that could  reasonably  be  expected  to result in a Material
Adverse  Effect.  The  consummation  of the  transactions  contemplated  by this
Agreement will not in any material  manner or to any material  extent impair the
ownership  of (or the  license  to use,  as the  case  may be) any  Intellectual
Property by any Loan Party or any of its Subsidiaries.

5.17     Related Agreements.

     A.  Delivery  of  Related  Agreements.  Company  has  delivered  to Lenders
complete and correct  copies of each Related  Agreement  and of all exhibits and
schedules thereto.

     B. Seller's Warranties.  Except to the extent otherwise set forth herein or
in the schedules  hereto,  each of the  representations  and warranties given by
Seller to Company or any of its  Subsidiaries  in the  Acquisition  Agreement is
true and  correct in all  material  respects as of the date hereof (or as of any
earlier date to which such representation and warranty specifically relates) and
will be true and correct in all material  respects as of the Closing Date (or as
of such  earlier  date,  as the  case  may  be),  in each  case  subject  to the
qualifications set forth in the schedules to the Acquisition Agreement.

     C. Warranties of Company.  Subject to the qualifications set forth therein,
each of the  representations  and  warranties  given by  Company  and any of its


                                       93
<PAGE>

Subsidiaries to Seller in the  Acquisition  Agreement is true and correct in all
material  respects  as of the date  hereof  and will be true and  correct in all
material respects as of the Closing Date.

     D. Survival.  Notwithstanding  anything in the Acquisition Agreement to the
contrary, the representations and warranties of Company set forth in subsections
5.17B and 5.17C  shall,  solely for  purposes  of this  Agreement,  survive  the
Closing Date for the benefit of Lenders.

5.18 Employment and Labor Agreements

     Except as disclosed on Schedule  5.18,  there are no employment  agreements
covering  management  employees of any Loan Party or any of its Subsidiaries and
there are no  collective  labor  agreements  covering any  employees of any Loan
Party or any of its  Subsidiaries.  Each Loan Party and each of its Subsidiaries
is in compliance with the terms and conditions of all such collective bargaining
agreements except where failure to so comply could not reasonably be expected to
have a Material Adverse Effect.

5.19 Disclosure.

     No  representation or warranty of any Loan Party or any of its Subsidiaries
contained in the Confidential  Information Memorandum or in any Loan Document or
Related  Agreement or in any other  document,  certificate or written  statement
furnished  to  Lenders  by or on  behalf  of  any  Loan  Party  or  any  of  its
Subsidiaries  for use in connection with the  transactions  contemplated by this
Agreement (including any Permitted Acquisition) contains any untrue statement of
a material fact or omits to state a material fact (known to Company, in the case
of any document not furnished by it)  necessary in order to make the  statements
contained  herein or therein not  misleading  in light of the  circumstances  in
which the same were made. Any projections  and pro forma  financial  information
contained in such materials are based upon good faith  estimates and assumptions
believed to be reasonable at the time made, it being  recognized by Lenders that
such  projections  as to  future  events  are not to be viewed as facts and that
actual results during the period or periods covered by any such  projections may
differ from the  projected  results.  There are no facts known (or which  should
upon the  reasonable  exercise  of  diligence  be known) to Company  (other than
matters of a general  economic  nature) that,  individually or in the aggregate,
could  reasonably  be expected to result in a Material  Adverse  Effect and that
have not been  disclosed  herein or in such other  documents,  certificates  and
statements  furnished  to Lenders for use in  connection  with the  transactions
contemplated hereby.

5.20 Subsidiary Guarantors.

     A.  Closing  Date  Subsidiary  Guarantors.  As of the  Closing  Date,  each
Subsidiary  of Company  (other  than Mitel AB,  Mitel  Barbados,  Plessey  GmbH,
Plessey  France SA,  Marconi  Electronic  Devices  SA, PSL and MEDL)  which owns
assets  (including  receivables)  with an aggregate  fair market value  (without
netting such fair market value  against any  liability  of such  Subsidiary)  in
excess of $10,000,000 is party to a Guaranty.

     B. Mitel  Barbados.  Mitel Barbados has no assets  (including  receivables)
other than the Discounted Notes.

                                       94

<PAGE>

                                   SECTION 6.
                         COMPANY'S AFFIRMATIVE COVENANTS

     Company  covenants  and  agrees  that,  so long  as any of the  Commitments
hereunder  shall remain in effect and until  payment in full of all of the Loans
and other  Obligations  and the  cancellation  or  expiration  of all Letters of
Credit,  unless  Requisite  Lenders shall otherwise give prior written  consent,
Company shall perform,  and shall cause each of its Subsidiaries to perform, all
covenants in this Section 6.

6.1  Financial Statements and Other Reports.

     Company will maintain,  and cause each of its  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. Company will deliver to Syndication Agent,  Administrative  Agent and
Lenders:

          (i) Monthly  Financials:  as soon as available and in any event within
     (x) 25 days  after the end of each of the first  two  months in any  Fiscal
     Quarter  commencing  with February,  1998, (y) 45 days after the end of the
     last month in each of the first  three  Fiscal  Quarters in any Fiscal Year
     and (z) 55 days after the last month in any Fiscal Year,  (a) the financial
     report  prepared  for  presentation  to senior  management  of Company  and
     including the  consolidated  balance sheets of Company and its Subsidiaries
     as at the end of such  month and the  related  consolidated  statements  of
     income, stockholders' equity and cash flows of Company and its Subsidiaries
     for such month and for the period from the  beginning  of the then  current
     Fiscal  Year  to the end of  such  month,  setting  forth  in each  case in
     comparative form the corresponding figures for the corresponding periods of
     the previous Fiscal Year and the  corresponding  figures from the Financial
     Plan for the current Fiscal Year to the extent prepared on a monthly basis,
     and the  combined  statements  of revenue  and cash  flows for the  Plessey
     Entities and their respective  Subsidiaries,  all in reasonable  detail and
     certified  by the chief  financial  officer  of  Company  that they  fairly
     present,  in all material respects,  the financial condition of Company and
     its  Subsidiaries  as at the  dates  indicated  and the  results  of  their
     operations and their cash flows for the periods indicated,  in each case on
     a  consolidated  basis subject to changes  resulting  from audit and normal
     year-end adjustments,  and (b) a narrative report describing the operations
     of Company and its  Subsidiaries  in the form prepared for  presentation to
     senior  management  for such month and for the period from the beginning of
     the then current Fiscal Year to the end of such month;

          (ii)  Quarterly  Financials:  as soon as  available  and in any  event
     within (x) 45 days after the end of each of the first three Fiscal Quarters
     in any  Fiscal  Year and (z) 90 days  after  the end of the  fourth  Fiscal
     Quarter in any Fiscal Year, (a) the consolidated  balance sheets of Company
     and its Subsidiaries and the balance sheets of the Material Subsidiaries as
     at the end of such Fiscal Quarter and the related  consolidated  statements
     of  income,  stockholders'  equity  and  cash  flows  of  Company  and  its
     Subsidiaries and the statements of income and  stockholders'  equity of the
     Material  Subsidiaries  for such Fiscal Quarter and for the period from the
     beginning  of the  then  current  Fiscal  Year to the  end of  such  Fiscal
     Quarter,  setting forth in each case in comparative form the  corresponding
     figures for the  corresponding  periods of the previous Fiscal Year, all in
     reasonable  detail and certified by the chief financial


                                       95
<PAGE>

     officer of Company that they fairly present, in all material respects,  the
     consolidated  financial  condition of Company and its  Subsidiaries and the
     financial condition of the Material  Subsidiaries as at the dates indicated
     and the consolidated  results of its operations and consolidated cash flows
     of  Company  and its  Subsidiaries  and the  results of  operations  of the
     Material  Subsidiaries  for  the  periods  indicated,  subject  to  changes
     resulting from audit and normal year-end  adjustments,  and (b) a narrative
     report  describing  the operations of Company and its  Subsidiaries  in the
     form prepared for presentation to senior management for such Fiscal Quarter
     and for the period from the  beginning of the then  current  Fiscal Year to
     the end of such Fiscal Quarter;

          (iii)  Year-End  Financials:  as soon as  available  and in any  event
     within 90 days  after the end of each  Fiscal  Year,  (a) the  consolidated
     balance  sheets of Company and its  Subsidiaries  and the balance sheets of
     the Material Subsidiaries as at the end of such Fiscal Year and the related
     consolidated  statements of income,  stockholders' equity and cash flows of
     Company and its  Subsidiaries  for such Fiscal Year and the  statements  of
     income and stockholders' equity of the Material Subsidiaries, setting forth
     in each case in comparative form the corresponding figures for the previous
     Fiscal Year covered by such financial statements,  all in reasonable detail
     and  certified by the chief  financial  officer of Company that they fairly
     present, in all material respects,  the consolidated financial condition of
     Company and its  Subsidiaries  and the financial  condition of the Material
     Subsidiaries  as at the dates  indicated  and the  consolidated  results of
     operations and consolidated  cash flows of Company and its Subsidiaries and
     the results of  operations  of the  Material  Subsidiaries  for the periods
     indicated,  (b) a narrative report describing the operations of Company and
     its Subsidiaries in the form prepared for presentation to senior management
     for such Fiscal Year,  and (c) in the case of such  consolidated  financial
     statements,  a  report  thereon  of  Ernst &  Young  or  other  independent
     certified public  accountants of recognized  national  standing selected by
     Company and  satisfactory to Syndication  Agent and  Administrative  Agent,
     which report shall be  unqualified,  shall not express any doubts about the
     ability of Company and its Subsidiaries to continue as a going concern, and
     shall state that such consolidated  financial statements fairly present, in
     all material respects,  the consolidated  financial position of Company and
     its Subsidiaries as at the dates indicated and the consolidated  results of
     their  operations  and  their  consolidated  cash  flows  for  the  periods
     indicated in conformity with GAAP applied on a basis  consistent with prior
     years (except as otherwise disclosed in such financial statements) and that
     the examination by such  accountants in connection  with such  consolidated
     financial  statements has been made in accordance  with generally  accepted
     auditing standards;

          (iv) Officers' and Compliance Certificates;  U.S. GAAP Reconciliation:
     together  with each  delivery of  financial  statements  of Company and its
     Subsidiaries  pursuant to  subdivisions  (i), (ii) and (iii) above,  (a) an
     Officers' Certificate of Company stating that the signers have reviewed the
     terms of this  Agreement  and have made,  or caused to be made under  their
     supervision,  a  review  in  reasonable  detail  of  the  transactions  and
     condition  of Company and its  Subsidiaries  during the  accounting  period
     covered by such financial statements and that such review has not disclosed
     the existence during or at the end of such accounting  period, and that the
     signers  do not  have  knowledge  of the  existence  as at the date of such
     Officers' Certificate,  of any condition or event that constitutes an Event
     of Default or  Potential  Event of Default,  or, if any such  condition  or
     event  existed or  exists,  specifying  the nature and period of  existence
     thereof and what action  Company has taken,  is taking and proposes to take

                                       96

<PAGE>

     with  respect  thereto;  (b)  a  Compliance  Certificate  demonstrating  in
     reasonable  detail  compliance  during  and  at the  end of the  applicable
     accounting  periods  with the  restrictions  contained  in  Section  7; and
     (c)with respect to subdivisions (ii) and (iii) only, a written statement of
     the chief accounting  officer or chief financial officer of Company setting
     forth a  reconciliation  of the  differences  between GAAP and U.S. GAAP as
     applicable to such financial statements.

          (v)  Reconciliation  Statements:  if,  as a result  of any  change  in
     accounting  principles  and policies from those used in the  preparation of
     the  audited  financial  statements  referred  to in  subsection  5.3,  the
     consolidated financial statements of Company and its Subsidiaries delivered
     pursuant to subdivisions  (ii), (iii) or (xiii) of this subsection 6.1 will
     differ in any material respect from the consolidated  financial  statements
     that would have been delivered  pursuant to such  subdivisions  had no such
     change in accounting  principles and policies been made, then together with
     the first delivery of financial  statements  pursuant to  subdivision  (i),
     (ii),  (iii) or (xiii) of this  subsection 6.1 following  such change,  (a)
     consolidated  financial  statements of Company and its Subsidiaries for (y)
     the current  Fiscal Year to the  effective  date of such change and (z) the
     two full Fiscal Years  immediately  preceding the Fiscal Year in which such
     change is made,  in each  case  prepared  on a pro  forma  basis as if such
     change had been in effect during such periods,  and (b) a written statement
     of the chief  accounting  officer  or chief  financial  officer  of Company
     setting forth the differences  (including any differences that would affect
     any  calculations   relating  to  the  financial  covenants  set  forth  in
     subsection 7.6) which would have resulted if such financial  statements had
     been prepared without giving effect to such change;

          (vi)  Accountants'  Certification:  together  with  each  delivery  of
     consolidated  financial statements of Company and its Subsidiaries pursuant
     to  subdivision  (iii)  above,  a  written  statement  by  the  independent
     certified  public  accountants  giving the report  thereon (a) stating that
     their  audit  examination  has  included  a  review  of the  terms  of this
     Agreement  and the  other  Loan  Documents  as they  relate  to  accounting
     matters,  (b) stating whether,  in connection with their audit examination,
     any  condition or event that  constitutes  an Event of Default or Potential
     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;  provided that such accountants  shall not be liable by
     reason of any failure to obtain  knowledge  of any such Event of Default or
     Potential  Event of Default  that would not be  disclosed  in the course of
     their  audit  examination,  and (c)  stating  that  based  on  their  audit
     examination nothing has come to their attention that causes them to believe
     either or both that the information contained in the certificates delivered
     therewith  pursuant  to  subdivision  (iv) above is not correct or that the
     matters  set  forth  in the  Compliance  Certificates  delivered  therewith
     pursuant to clause (b) of subdivision (iv) above for the applicable  Fiscal
     Year are not stated in accordance with the terms of this Agreement;

          (vii)  Accountants'  Reports:  promptly upon receipt  thereof  (unless
     restricted by  applicable  professional  standards),  copies of all reports
     submitted  to  Company  by  independent  certified  public  accountants  in
     connection  with each  annual,  interim or special  audit of the  financial
     statements  of  Company  and its  Subsidiaries  made  by such  accountants,
     including any comment letter submitted by such accountants to management in
     connection with their annual audit;

          (viii) SEC Filings and Press  Releases:  promptly upon their  becoming

                                       97

<PAGE>

     available,  copies of (a) all financial  statements,  reports,  notices and
     proxy  statements  sent or  made  available  generally  by  Company  to its
     security  holders or by any  Subsidiary of Company to its security  holders
     other than Company or another  Subsidiary  of Company,  (b) all regular and
     periodic reports and all registration statements (other than on Form S-8 or
     a similar form) and  prospectuses,  if any,  filed by Company or any of its
     Subsidiaries  with  any  securities  exchange  or with the  Securities  and
     Exchange  Commission or any governmental or private  regulatory  authority,
     and (c) all press releases and other statements made available generally by
     Company  or any of its  Subsidiaries  to  the  public  concerning  material
     developments in the business of Company or any of its Subsidiaries;

          (ix) Events of  Default,  etc.:  promptly  upon any officer of Company
     obtaining knowledge (a) of any condition or event that constitutes an Event
     of Default or Potential Event of Default, or becoming aware that any Lender
     has given any  notice  (other  than to  Administrative  Agent) or taken any
     other action with respect to a claimed Event of Default or Potential  Event
     of  Default,  (b) that any Person has given any notice to Company or any of
     its  Subsidiaries  or taken  any other  action  with  respect  to a claimed
     default or event or condition of the type  referred to in  subsection  8.2,
     (c) of any  condition  or event that would be required to be disclosed in a
     current report filed by Company with the Securities and Exchange Commission
     on Form 8-K  (Items  1, 2, 4, 5 and 6 of such Form as in effect on the date
     hereof) if Company were  required to file such  reports  under the Exchange
     Act,  or (d) of the  occurrence  of any event or change  that has caused or
     evidences,  either  in any case or in the  aggregate,  a  Material  Adverse
     Effect,  an  Officers'  Certificate  specifying  the  nature  and period of
     existence of such  condition,  event or change,  or  specifying  the notice
     given or action  taken by any such  Person and the  nature of such  claimed
     Event of Default,  Potential Event of Default, default, event or condition,
     and what  action  Company  has taken,  is taking and  proposes to take with
     respect thereto;

          (x)  Litigation  or Other  Proceedings:  promptly  upon any officer of
     Company  obtaining  knowledge of (X) the institution  of, or  non-frivolous
     threat of, any action, suit, proceeding (whether  administrative,  judicial
     or  otherwise),   governmental  investigation  or  arbitration  against  or
     affecting  Company or any of its Subsidiaries or any property of Company or
     any  of  its  Subsidiaries  (collectively,  "Proceedings")  not  previously
     disclosed in writing by Company to Lenders or (Y) any material  development
     in any Proceeding that, in any case:

               (1) if  adversely  determined,  has a reasonable  possibility  of
          giving rise to a Material Adverse Effect; or

               (2) seeks to enjoin or otherwise  prevent the consummation of, or
          to  recover  any  damages  or  obtain  relief  as  a  result  of,  the
          transactions contemplated hereby;

     written  notice  thereof  together  with such other  information  as may be
     reasonably  available  to Company to enable  Lenders  and their  counsel to
     evaluate such matters;

          (xi) ERISA Events:  promptly upon becoming  aware of the occurrence of
     or  forthcoming  occurrence of any ERISA Event or any Foreign  Benefit Plan
     Event, a written notice specifying the nature thereof, what action Company,
     any of its  Subsidiaries or any of their  respective  ERISA  Affiliates has
     taken, is taking or

                                       98

<PAGE>

     proposes to take with respect thereto and, when known,  any action taken or
     threatened by the Internal  Revenue  Service,  the Department of Labor, the
     PBGC or any other government or governmental agency with respect thereto;

          (xii) ERISA Notices:  with reasonable  promptness,  copies of (a) each
     Schedule B (Actuarial  Information) to the annual report (Form 5500 Series)
     filed by Company,  any of its Subsidiaries or any of their respective ERISA
     Affiliates  with the  Internal  Revenue  Service  with respect to each U.S.
     Pension Plan; (b) all notices received by Company,  any of its Subsidiaries
     or any of their  respective  ERISA  Affiliates  from a  Multiemployer  Plan
     sponsor  concerning an ERISA Event; (c) copies of any notices received from
     a court,  government  or  governmental  agency  with  respect  to a Foreign
     Benefit Plan Event;  and (d) copies of such other documents or governmental
     reports or filings  relating to any Employee  Benefit  Plan as  Syndication
     Agent or Administrative Agent shall reasonably request;

          (xiii)  Financial  Plans:  as soon as practicable  and in any event no
     later than 55 days  following  the beginning of the 1999 Fiscal Year and no
     later than the beginning of each Fiscal Year thereafter, (a) a consolidated
     plan and financial  forecast for such Fiscal Year (the "Financial Plan" for
     such Fiscal Year),  including (x) a forecasted  consolidated  balance sheet
     and forecasted  consolidated statements of income and cash flows of Company
     and its  Subsidiaries  for such  Fiscal  Year,  together  with a pro  forma
     Compliance  Certificate  for such  Fiscal  Year and an  explanation  of the
     assumptions on which such forecasts are based, (y) forecasted  consolidated
     statements  of income and cash flows of Company  and its  Subsidiaries  for
     each  month  of such  Fiscal  Year,  together  with an  explanation  of the
     assumptions  on  which  such  forecasts  are  based,  and  (z)  such  other
     information and projections as any Lender may reasonably request, and (b) a
     consolidated  plan and financial  forecast for the period  commencing  with
     such Fiscal Year and continuing  through and including the 2004 Fiscal Year
     including  annual  forecasted  consolidated  balance  sheet and  forecasted
     consolidated  statements  of  income  and  cash  flows of  Company  and its
     Subsidiaries for such period.

          (xiv)  Insurance:  as soon as practicable and in any event by the last
     day of each Fiscal Year,  a report in form and  substance  satisfactory  to
     Syndication Agent and Administrative Agent outlining all material insurance
     coverage  maintained  as of the  date of such  report  by  Company  and its
     Subsidiaries and all material  insurance  coverage planned to be maintained
     by Company and its Subsidiaries in the immediately succeeding Fiscal Year;

          (xv) Board of Directors: with reasonable promptness, written notice of
     any change in the Board of Directors of Company;

          (xvi) New Subsidiaries: promptly upon any Person becoming a Subsidiary
     of Company,  a written notice setting forth with respect to such Person (a)
     the date on which such  Person  became a  Subsidiary  of  Company,  (b) the
     capitalization of such Subsidiary and ownership interest of Company and its
     Subsidiaries in such Subsidiary and (c) the jurisdiction of organization of
     such Subsidiary;

          (xvii)  Material  Contracts:  promptly,  and in any event  within  ten
     Business  Days  after  any  Material  Contract  of  Company  or  any of its
     Subsidiaries  is  terminated  or  amended  in a manner  that is  materially
     adverse  to  Company  or such  Subsidiary,  as the case may be,  or any new
     Material  Contract is entered  into, a written  statement


                                       99

<PAGE>

     describing  such  event  with  copies of such  material  amendments  or new
     contracts,  and an  explanation  of any actions  being  taken with  respect
     thereto;

          (xviii)  Personal  Property  Filing  Search  Report:  As  promptly  as
     practicable  after  the date of  delivery  to  Administrative  Agent of any
     personal  property  financing  statement or similar filing  executed by any
     Loan Party  pursuant to  subsection  4.1I(iv) or 6.8A,  copies of completed
     personal  property filing or similar filing searches  evidencing the proper
     filing,  recording  and indexing of all such  personal  property  financing
     statements and similar  filings and listing all other  effective  financing
     statements that name such Loan Party as debtor, together with copies of all
     such other financing  statements not previously delivered to Administrative
     Agent by or on behalf of Company or such Loan Party; and

          (xix) Permitted  Acquisitions:  As soon as practicable but in no event
     less  than five  Business  Days  prior to the date on which  any  Permitted
     Acquisition  is  consummated,   (a)  financial  statements  of  the  target
     (including  any Person whose  assets are to be acquired) of such  Permitted
     Acquisition  and its  Subsidiaries,  if any, on a consolidated  or combined
     basis  (or,  if any such  Permitted  Acquisition  is of  assets,  financial
     statements of the business operation to be acquired),  in each case, to the
     extent  available,  for the most  recently  completed  fiscal  year of such
     target,   (b)  copies  of  all  other   consolidated   balance  sheets  and
     consolidating  balance sheets (to the extent  consolidating  balance sheets
     are available) and related  statements of operations and statements of cash
     flows  of such  target  and its  Subsidiaries,  if  any,  acquired  in such
     Permitted  Acquisition,  that are to be  delivered to Company or any of its
     Subsidiaries  in connection  with such  Permitted  Acquisition,  (c) to the
     extent then  available,  copies of all purchase  agreements,  agreements of
     merger,  letters of intent or other  operative  agreements  entered into by
     Company  or any of its  Subsidiaries  in  connection  with  such  Permitted
     Acquisition  (it being  understood  and agreed  that,  to the  extent  such
     agreements  or letters of intent have not been  entered  into at such time,
     copies  of such  agreements  and  letters  of  intent  shall  be  delivered
     reasonably  promptly  after  the  execution  thereof),  (d) a  consolidated
     balance  sheet of Company and its  Subsidiaries  giving pro forma effect to
     such Permitted Acquisition, (e) a Compliance Certificate of Company and its
     Subsidiaries   demonstrating   pro  forma  compliance  with  the  covenants
     contained in Section 7 after giving effect to such  Permitted  Acquisition,
     (f) any other information relating to such Permitted Acquisition reasonably
     requested by Syndication Agent or Administrative Agent.

          (xx)  Other  Information:   with  reasonable  promptness,  such  other
     information and data with respect to Company or any of its  Subsidiaries as
     from time to time may be reasonably requested by any Lender.

6.2  Corporate Existence, etc.

     Except as permitted under subsection 7.7, Company will, and will cause each
of its  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;
provided,  however that  neither  Company nor any of its  Subsidiaries  shall be
required to preserve  any such right or  franchise  if the Board of Directors of
Company or such Subsidiary shall determine that the  preservation  thereof is no
longer  desirable in the conduct of the business of Company or such  Subsidiary,
as the case may be,  and that the loss  thereof  is not  disadvantageous  in any
material respect to Company, such Subsidiary or Lenders.



                                      100

<PAGE>

6.3  Payment of Taxes and Claims; Tax Consolidation.

     A. Company will, and will cause each of its Subsidiaries to, pay all taxes,
assessments  and  other  governmental  charges  imposed  upon  it or  any of its
properties  or  assets  or in  respect  of  any  of its  income,  businesses  or
franchises before any penalty accrues thereon,  and all claims (including claims
for labor,  services,  materials and supplies) for sums that have become due and
payable and that by law have or may become a Lien upon any of its  properties or
assets,  prior to the time  when any  penalty  or fine  shall be  incurred  with
respect  thereto;  provided  that no such  charge or claim need be paid if it is
being contested in good faith by appropriate proceedings promptly instituted and
diligently  conducted,  so  long  as  (1)  such  reserve  or  other  appropriate
provision,  if any, as shall be required in conformity with GAAP shall have been
made therefor and (2) in the case of a charge or claim which has or may become a
Lien  against  any of the  Collateral,  such  contest  proceedings  conclusively
operate to stay the sale of any portion of the Collateral to satisfy such charge
or claim.

     B. Company will not, nor will it permit any of its Subsidiaries to, file or
consent to the  filing of any  consolidated  income  tax return  with any Person
(other than Company or any of its Subsidiaries).

6.4  Maintenance  of  Properties;   Insurance;  Application  of  Net  Insurance/
     Condemnation Proceeds.

     A.  Maintenance  of  Properties.  Company will,  and will cause each of its
Subsidiaries  to,  maintain or cause to be  maintained  in good repair,  working
order and condition,  ordinary wear and tear excepted,  all material  properties
used or useful in the business of Company and its  Subsidiaries  (including  all
Intellectual  Property)  and from time to time will make or cause to be made all
appropriate repairs,  renewals and replacements thereof. The Company shall cause
each of its U.K.  Subsidiaries  to comply with the covenants set out clause 8 of
the U.K.  Guarantee and  Debenture,  whether or not such  Subsidiary is party to
such document.

     B.  Insurance.  Company  will  maintain  or  cause to be  maintained,  with
financially sound and reputable insurers, such public liability insurance, third
party property damage insurance,  business  interruption  insurance and casualty
insurance  with  respect  to  liabilities,  losses or damage in  respect  of the
assets,  properties  and  businesses  of  Company  and its  Subsidiaries  as may
customarily be carried or maintained under similar circumstances by corporations
of established  reputation engaged in similar  businesses,  in each case in such
amounts (giving effect to self-insurance),  with such deductibles, covering such
risks and  otherwise  on such terms and  conditions  as shall be  customary  for
corporations similarly situated in the industry. Without limiting the generality
of the  foregoing,  Company will  maintain or cause to be  maintained  (i) flood
insurance  with  respect  to each  Flood  Hazard  Property  that is located in a
community that  participates  in the National Flood Insurance  Program,  in each
case in compliance with any applicable  regulations of the Board of Governors of
the Federal Reserve System, and (ii) replacement value casualty insurance on the
Collateral under such policies of insurance,  with such insurance companies,  in
such amounts, with such deductibles, and covering such risks as are at all times
satisfactory to Syndication Agent and Administrative Agent in their commercially
reasonable judgment. Each such policy of insurance shall (a) name Administrative
Agent for the  benefit of Lenders as an  additional  insured  thereunder  as its
interests  may  appear  and (b) in the case of each  business  interruption  and
casualty  insurance  policy,  contain  a loss  payable  clause  or


                                      101

<PAGE>

endorsement,  satisfactory  in form  and  substance  to  Syndication  Agent  and
Administrative Agent, that names Administrative Agent for the benefit of Lenders
as the loss payee  thereunder  for any covered loss in excess of $1,000,000  and
provides for at least 30 days prior written  notice to  Administrative  Agent of
any   modification   or  cancellation  of  such  policy  (other  than  any  such
modification in respect of an insurance policy issued in the United Kingdom).

     C. Application of Net Insurance/Condemnation Proceeds.

          (i) Business Interruption Insurance. Upon receipt by Company or any of
     its   Subsidiaries  of  any  business   interruption   insurance   proceeds
     constituting Net  Insurance/Condemnation  Proceeds, (a) so long as no Event
     of  Default  or  Potential  Event of Default  shall  have  occurred  and be
     continuing,  Company  or such  Subsidiary  may  retain  and apply  such Net
     Insurance/Condemnation Proceeds for working capital purposes, and (b) if an
     Event of Default or Potential  Event of Default  shall have occurred and be
     continuing,   Company   shall   apply   an   amount   equal   to  such  Net
     Insurance/Condemnation  Proceeds to prepay the Loans  (and/or the Revolving
     Loan Commitments shall be reduced) as provided in subsection 2.4B(iii)(b);

          (ii) Casualty Insurance/Condemnation Proceeds. Upon receipt by Company
     or any of its Subsidiaries of any Net Insurance/Condemnation Proceeds other
     than  from  business  interruption  insurance,  (a) so long as no  Event of
     Default or Potential Event of Default shall have occurred and be continuing
     and so long as the aggregate amount of Net Insurance/Condemnation  Proceeds
     received from the Closing Date to the date of determination does not exceed
     $15,000,000,  Company  may  deliver to  Administrative  Agent an  Officers'
     Certificate    setting    forth    (1)   that    portion    of   such   Net
     Insurance/Condemnation   Proceeds  (the  "Proposed  Insurance  Reinvestment
     Proceeds") that Company or such Subsidiary  intends to use (or enter into a
     contract  to  use)  within  180  days of such  date  of  receipt  to pay or
     reimburse  the costs of  repairing,  restoring or  replacing  the assets in
     respect of which such Net Insurance/Condemnation  Proceeds were received or
     to reinvest in Eligible  Assets and (2) the  proposed  use of the  Proposed
     Insurance  Reinvestment Proceeds and such other information with respect to
     such  proposed  use  as  Syndication  Agent  or  Administrative  Agent  may
     reasonably  request,  and Company shall,  or shall cause one or more of its
     Subsidiaries  to,  promptly and  diligently  apply such Proposed  Insurance
     Reinvestment Proceeds to pay or reimburse the costs of repairing, restoring
     or  replacing  the  assets in  respect  of which  such  Proposed  Insurance
     Reinvestment  Proceeds were received or to  reinvestment in Eligible Assets
     or, to the extent the Net Insurance/Condemnation Proceeds received from the
     Closing Date to the date of  determination  exceed  $500,000 and are not so
     applied,  to prepay the Loans (and/or the Revolving Loan Commitments  shall
     be reduced) as provided in subsection 2.4B(iii)(b),  and (b) if an Event of
     Default  shall have  occurred  and be  continuing,  Company  shall apply an
     amount  equal to such Net  Insurance/  Condemnation  Proceeds to prepay the
     Loans (and/or the Revolving Loan Commitments  shall be reduced) as provided
     in subsection 2.4B(iii)(b).

          (iii) Net  Insurance/Condemnation  Proceeds Received by Administrative
     Agent.    Upon    receipt    by    Administrative    Agent   of   any   Net
     Insurance/Condemnation Proceeds as loss payee, if and to the extent Company
     would have been required to apply such Net Insurance/Condemnation  Proceeds
     (if it had received  them  directly) to prepay the Loans and/or  reduce the
     Revolving Loan Commitments,  Administrative Agent shall, and Company hereby
     authorizes  Administrative Agent to, apply such Net


                                      102
<PAGE>

     Insurance/Condemnation  Proceeds to prepay the Loans  (and/or the Revolving
     Loan Commitments shall be reduced) as provided in subsection  2.4B(iii)(b),
     and  (b)  to  the  extent  the   foregoing   clause  (a)  does  not  apply,
     Administrative Agent shall deliver such Net Insurance/Condemnation Proceeds
     to  Company,  and  Company  shall,  or  shall  cause  one  or  more  of its
     Subsidiaries to, promptly apply such Net Insurance/Condemnation Proceeds to
     the costs of  repairing,  restoring,  or replacing the assets in respect of
     which  such  Net  Insurance/Condemnation   Proceeds  were  received  or  to
     reinvestment in Eligible  Assets;  provided,  however,  that if at any time
     Syndication  Agent or Administrative  Agent reasonably  determines (A) that
     Company or such  Subsidiary is not proceeding  diligently with such repair,
     restoration  or  replacement  or  (B)  that  such  repair,  restoration  or
     replacement  cannot  be  completed  with  the  Net   Insurance/Condemnation
     Proceeds then held by Administrative Agent for such purpose,  together with
     funds otherwise available to Company for such purpose, or that such repair,
     restoration  or replacement  cannot be completed  within 180 days after the
     receipt  by  Administrative   Agent  of  such  Net   Insurance/Condemnation
     Proceeds,   Administrative  Agent  shall,  and  Company  hereby  authorizes
     Administrative Agent to, apply such Net Insurance/ Condemnation Proceeds to
     prepay the Loans (and/or the Revolving Loan  Commitments  shall be reduced)
     as provided in subsection 2.4B(iii)(b).

6.5  Inspection Rights; Lender Meeting.

     A.  Inspection  Rights.   Company  shall,  and  shall  cause  each  of  its
Subsidiaries to, permit any authorized  representatives designated by any Lender
to  visit  and  inspect  any  of  the  properties  of  Company  or of any of its
Subsidiaries,  to inspect,  copy and take extracts from its and their  financial
and  accounting  records,  and to discuss its and their  affairs,  finances  and
accounts  with  its  and  their  officers  and  independent  public  accountants
(provided  that Company may, if it so chooses,  be present at or  participate in
any such  discussion),  all upon reasonable  notice and at such reasonable times
during normal business hours and as often as may reasonably be requested.

     B. Lender  Meeting.  Company will,  upon the request of Syndication  Agent,
Administrative Agent or Requisite Lenders, participate in a meeting of Agent and
Lenders once during each Fiscal Year to be held at Company's  corporate  offices
(or at such other  location  as may be agreed to by Company  and  Administrative
Agent) at such time as may be agreed to by Company and Administrative Agent.

6.6  Compliance with Laws, etc.

     Company  shall  comply,  and shall cause each of its  Subsidiaries  and all
other Persons on or occupying any Facilities to comply, with the requirements of
all applicable laws, rules, regulations and orders of any governmental authority
(including all Environmental Laws), noncompliance with which could reasonably be
expected to cause, individually or in the aggregate, a Material Adverse Effect.


                                      103
<PAGE>

6.7  Environmental Review and Investigation, Disclosure, Etc.; Company's Actions
     Regarding  Hazardous  Materials   Activities,   Environmental   Claims  and
     Violations of Environmental Laws.

     A.   Environmental   Review  and   Investigation.   Company   agrees   that
Administrative  Agent may, from time to time and in its  reasonable  discretion,
(i) retain,  at Company's  expense,  an independent  professional  consultant to
review any environmental audits,  investigations,  analyses and reports relating
to  Hazardous  Materials  prepared  by or for  Company and (ii) in the event (a)
Administrative   Agent  reasonably   believes  that  Company  has  breached  any
representation,  warranty or covenant  contained in subsection 5.6, 5.13, 6.6 or
6.7 or that there has been a material  violation  of (or is or may be a material
liability under)  Environmental Laws at any Facility or by Company or any of its
Subsidiaries  at any other  location or (b) an Event of Default has occurred and
is continuing,  conduct its own investigation of any Facility; provided that, in
the case of any Facility no longer owned, leased, operated or used by Company or
any of its Subsidiaries, Company shall only be obligated to use its best efforts
to obtain  permission  for  Administrative  Agent's  professional  consultant to
conduct an  investigation  of such Facility.  For purposes of conducting  such a
review and/or  investigation,  Company hereby grants to Administrative Agent and
its agents,  employees,  consultants  and contractors the right to enter into or
onto any Facilities currently owned, leased,  operated or used by Company or any
of its Subsidiaries and to perform such tests on such property (including taking
samples of soil, groundwater and suspected asbestos-containing materials) as are
reasonably  necessary in connection  therewith.  Any such  investigation  of any
Facility  shall  be  conducted,  unless  otherwise  agreed  to  by  Company  and
Administrative Agent, during normal business hours and, to the extent reasonably
practicable,  shall  be  conducted  so as  not to  interfere  with  the  ongoing
operations  at such  Facility or to cause any damage or loss to any  property at
such Facility.  Company and  Administrative  Agent hereby  acknowledge and agree
that any report of any investigation  conducted at the request of Administrative
Agent  pursuant to this  subsection  6.7A will be obtained  and shall be used by
Administrative  Agent and Lenders for the purposes of Lenders'  internal  credit
decisions,  to monitor  and police  the Loans and to protect  Lenders'  security
interests, if any, created by the Loan Documents. Administrative Agent agrees to
deliver a copy of any such report to Company with the understanding that Company
acknowledges   and  agrees  that  (x)  it  will   indemnify  and  hold  harmless
Administrative  Agent and each  Lender  from any  costs,  losses or  liabilities
relating  to  Company's  use  of  or  reliance  on  such  report,   (y)  neither
Administrative  Agent nor any Lender makes any  representation  or warranty with
respect to such report,  and (z) by delivering  such report to Company,  neither
Administrative   Agent  nor  any  Lender  is  requiring  or   recommending   the
implementation of any suggestions or recommendations contained in such report.

     B.  Environmental  Disclosure.  Company will deliver to Syndication  Agent,
Administrative Agent and Lenders:

          (i) Environmental Audits and Reports. As soon as practicable following
     receipt  thereof,  copies  of  all  environmental  audits,  investigations,
     analyses  and  reports  of any  kind  or  character,  whether  prepared  by
     personnel  of  Company  or  any  of  its  Subsidiaries  or  by  independent
     consultants, governmental authorities or any other Persons, with respect to
     significant environmental matters at any Facility which, individually or in
     the aggregate, could reasonably be expected to result in a Material Adverse
     Effect or with respect to any Environmental  Claims which,  individually or
     in the  aggregate,  could  reasonably  be  expected to result in a Material
     Adverse Effect;

                                      104

<PAGE>

          (ii) Notice of Certain Releases,  Remedial Actions, Etc. Promptly upon
     the occurrence thereof,  written notice describing in reasonable detail (a)
     any Release  required to be reported to any  national,  regional,  federal,
     European Union,  state or local governmental or regulatory agency under any
     applicable  Environmental Laws, (b) any remedial action taken by Company or
     any other Person in response to (1) any Hazardous Materials  Activities the
     existence of which has a reasonable possibility of resulting in one or more
     Environmental Claims having,  individually or in the aggregate,  a Material
     Adverse Effect,  or (2) any Environmental  Claims that,  individually or in
     the  aggregate,  have a reasonable  possibility  of resulting in a Material
     Adverse Effect, and (c) Company's  discovery of any occurrence or condition
     on any real  property  adjoining or in the  vicinity of any  Facility  that
     could cause such Facility or any part thereof to be subject to any material
     restrictions on the ownership,  occupancy,  transferability  or use thereof
     under any Environmental Laws.

          (iii) Written Communications Regarding Environmental Claims, Releases,
     Etc. As soon as  practicable  following  the sending or receipt  thereof by
     Company  or  any of  its  Subsidiaries,  a copy  of  any  and  all  written
     communications   with  respect  to  (a)  any  Environmental   Claims  that,
     individually or in the aggregate,  have a reasonable  possibility of giving
     rise to a Material Adverse Effect,  (b) any Release required to be reported
     to  any  national,  regional,  federal,  European  Union,  state  or  local
     governmental or regulatory agency, and (c) any request for information from
     any governmental agency that suggests such agency is investigating  whether
     Company or any of its Subsidiaries  may be potentially  responsible for any
     Hazardous Materials Activity.

          (iv) Notice of Certain Proposed Actions Having  Environmental  Impact.
     Prompt  written  notice  describing in  reasonable  detail (a) any proposed
     acquisition  of  stock,  assets,  or  property  by  Company  or  any of its
     Subsidiaries that could reasonably be expected to (1) expose Company or any
     of its  Subsidiaries  to, or result  in,  Environmental  Claims  that could
     reasonably  be  expected  to  have,  individually  or in the  aggregate,  a
     Material  Adverse Effect or (2) affect the ability of Company or any of its
     Subsidiaries to maintain in full force and effect all material Governmental
     Authorizations  required under any Environmental  Laws for their respective
     operations and (b) any proposed action to be taken by Company or any of its
     Subsidiaries to commence manufacturing or other industrial operations or to
     modify current  operations in a manner that could reasonably be expected to
     subject Company or any of its Subsidiaries to any additional obligations or
     requirements under any Environmental Laws that could reasonably be expected
     to have, individually or in the aggregate, a Material Adverse Effect.

          (v)  Other  Information.   With  reasonable  promptness,   such  other
     documents and information as from time to time may be reasonably  requested
     by  Syndication  Agent or  Administrative  Agent in relation to any matters
     disclosed pursuant to this subsection 6.7.

                                      105

<PAGE>

     C.   Company's   Actions   Regarding   Hazardous   Materials    Activities,
Environmental Claims and Violations of Environmental Laws.

          (i)  Remedial  Actions  Relating to  Hazardous  Materials  Activities.
     Company shall promptly undertake,  and shall cause each of its Subsidiaries
     promptly  to  undertake,  any and all  investigations,  studies,  sampling,
     testing, abatement, cleanup, removal, remediation or other response actions
     necessary to remove,  remediate,  clean up or abate any Hazardous Materials
     Activity  on,  under or about  any  Facility  that is in  violation  of any
     Environmental  Laws or that  presents a material  risk of giving rise to an
     Environmental  Claim.  In the  event  Company  or  any of its  Subsidiaries
     undertakes any such action with respect to any Hazardous Materials, Company
     or such  Subsidiary  shall  conduct and complete  such action in compliance
     with all applicable Environmental Laws and in accordance with the policies,
     orders and directives of all national,  regional,  federal, European Union,
     state and  local  governmental  authorities  except  when,  and only to the
     extent that, Company's or such Subsidiary's  liability with respect to such
     Hazardous Materials Activity is being contested in good faith by Company or
     such Subsidiary.

          (ii) Actions with Respect to  Environmental  Claims and  Violations of
     Environmental  Laws.  Company shall  promptly take, and shall cause each of
     its  Subsidiaries  promptly to take,  any and all actions  necessary to (i)
     cure  any  material   violation   of  (or   liability   under)   applicable
     Environmental  Laws  by  Company  or its  Subsidiaries  and  (ii)  make  an
     appropriate  response to any Environmental  Claim against Company or any of
     its  Subsidiaries  and discharge any  obligations it may have to any Person
     thereunder.

6.8  Execution of  Guaranties  and  Personal  Property  Collateral  Documents by
     Certain Subsidiaries and Future Subsidiaries.

     A. U.K.  Plessey  Entities.  Within 60 days  following  the  Closing  Date,
Company  shall cause each of PSL and MEDL to (i) become a  Subsidiary  Guarantor
and execute and deliver to Administrative Agent an accession  undertaking to the
U.K.  Guarantee  and  Debenture  and become a lender under the  IntraGroup  Loan
Agreement,  (ii) deliver evidence  satisfactory to the Administrative  Agent and
Syndication  Agent that such  Subsidiary  has complied with the  provisions  and
procedures required by sections 155 to 158 of the Companies Act 1985 in relation
thereto  (including  an auditor's  letter  addressed to the Agents and Lender in
form  and  substance   reasonably   satisfactory  to  Administrative  Agent  and
Syndication  Agent) and (iii) take all such further actions and execute all such
further documents and instruments (including actions,  documents and instruments
comparable to those  described in subsections  4.1I and 6.9) as may be necessary
or, in the opinion of Administrative  Agent or Syndication  Agent,  desirable to
create in favor of Administrative Agent, for the benefit of Lenders, a valid and
(except to the extent  expressly  provided in the U.K.  Guarantee and Debenture)
perfected  First Priority Lien on all of the personal and mixed property  assets
of such Subsidiary  described in the applicable  forms of Collateral  Documents;
provided,  however,  that Company  shall not be required to cause MEDL to comply
with this subsection 6.8A in the event that, within 30 days of the Closing Date,
either (a) MEDL is merged with PSL or Mitel  Telecom with PSL or Mitel  Telecom,
as the case may be, being the surviving  company or (b) MEDL is  dissolved,  its
business wound-up and all of its assets distributed to Mitel Telecom.

                                      106

<PAGE>

     B. Mitel AB. Company  shall,  and shall cause Mitel AB, to (i) use its best
efforts to obtain an exemption from the relevant Swedish tax authority to permit
Mitel AB to become a Subsidiary  Guarantor  and grant a charge on all its assets
to   Administrative   Agent  for  the   benefit  of  Lenders   and  (ii)  notify
Administrative Agent and Syndication  Agreement of any notices received by Mitel
AB or its advisors in  connection  with such  application.  In the event such an
exemption is granted  Administrative Agent and Syndication Agent may at any time
thereafter (so long as  Administrative  Agent and  Syndication  Agent shall have
received the real estate appraisals pursuant to subsection 6.10A) notify Company
that Mitel AB must  become a  Subsidiary  Guarantor  and  execute  and deliver a
Subsidiary  Security  Agreement  (Sweden)  substantially  in the form of Exhibit
XXVII annexed hereto and must otherwise  comply with the  requirements set forth
in  subsections  6.8C and 6.9 (including  paying any  applicable  stamp taxes in
connection  with the execution of any relevant Loan Documents) and Company shall
thereupon  cause Mitel AB to take all such actions  within ten Business  Days of
such notice.

     C.  Execution  of  Subsidiary  Guaranty and  Personal  Property  Collateral
Documents. In addition to the provisions set forth above in subsections 6.8A and
6.8B, in the event that any  Subsidiary of Company  existing on the Closing Date
(other than Plessey GmbH,  Plessey France SA and Marconi  Electronic Devices SA)
that has not previously  executed a Guaranty  hereafter owns or acquires  assets
(including  receivables)  on a consolidated  basis with an aggregate fair market
value  (without  netting  such fair market value  against any  liability of such
Subsidiary)  exceeding  $10,000,000,  or in the event that any Person  becomes a
Subsidiary  of Company  after the date  hereof,  Company  will  promptly  notify
Administrative Agent of that fact and, subject to clause (iii) below, cause such
Subsidiary (i) to execute and deliver to  Administrative  Agent a counterpart of
the Subsidiary Guaranty or, in the case such Subsidiary is a U.K. Subsidiary, an
accession  undertaking to the U.K.  Guarantee and  Debenture,  in each case with
such  modifications  thereto as may be  reasonably  requested by  Administrative
Agent or Syndication  Agent  (including any such changes required to comply with
local law), (ii) to execute and deliver to Administrative  Agent such pledge and
security agreements as Administrative  Agent or Syndication Agent may reasonably
request  and to take all such  further  actions  and  execute  all such  further
documents  and  instruments   (including  actions,   documents  and  instruments
comparable to those described in subsection 4.1I) as may be necessary or, in the
opinion of  Administrative  Agent or Syndication  Agent,  desirable to create in
favor of Administrative  Agent, for the benefit of Lenders,  a valid and (except
to the extent expressly provided in the U.K. Guarantee and Debenture)  perfected
First  Priority  Lien on all of the personal and mixed  property  assets of such
Subsidiary  described in the applicable forms of Collateral  Documents and (iii)
in the  case of any  such  Subsidiary  which is a U.K.  Subsidiary,  cause  such
Subsidiary to comply with the  provisions  of subsection  6.8A within 60 days of
such Subsidiary's becoming subject to this subsection 6.8C.

6.9  Conforming  Leasehold  Interests;   Matters  Relating  to  Additional  Real
     Property Collateral.

     A. Conforming  Leasehold  Interests.  If Company or any of its Subsidiaries
acquires any Material  Leasehold  Property,  Company shall,  or shall cause such
Subsidiary  to, use its best  efforts to cause such  Leasehold  Property to be a
Conforming Leasehold Interest.

     B. Additional Mortgages, Etc. From and after the Closing Date, in the event
that (i)  Company  or any  Subsidiary  Guarantor  acquires  any fee or  freehold
interest in


                                      107
<PAGE>

real property or any Material  Leasehold Property or (ii) at the time any Person
becomes a  Subsidiary  Guarantor,  such Person owns or holds any fee or freehold
interest in real  property or any Material  Leasehold  Property,  in either case
excluding any such Real Property Asset the  encumbrancing  of which requires the
consent  of any  applicable  lessor  or (in  the  case  of  clause  (ii)  above)
then-existing  senior lienholder,  where Company and its Subsidiaries are unable
to obtain such lessor's or senior  lienholder's  consent (any such  non-excluded
Real  Property  Asset  described  in the  foregoing  clause (i) or (ii) being an
"Additional  Mortgaged  Property"),  Company or such Subsidiary  Guarantor shall
deliver to  Administrative  Agent,  as soon as  practicable  after  such  Person
acquires such Additional  Mortgaged Property or becomes a Subsidiary  Guarantor,
as the case may be, the following:

          (i) Additional  Mortgage.  A fully executed and notarized  Mortgage or
     equivalent  document  reasonably  acceptable  to  Administrative  Agent and
     Syndication Agent (an "Additional Mortgage"),  in proper form for recording
     in all appropriate places in all applicable jurisdictions,  encumbering the
     interest of such Loan Party in such Additional Mortgaged Property;

          (ii) Opinions of Counsel.  (a) A favorable  opinion of counsel to such
     Loan Party, in form and substance  satisfactory to Administrative Agent and
     Syndication Agent and their respected counsel, as to the due authorization,
     execution and delivery by such Loan Party of such  Additional  Mortgage and
     such  other  matters  as  Administrative  Agent or  Syndication  Agent  may
     reasonably  request,  and  (b)  if  required  by  Administrative  Agent  or
     Syndication Agent, an opinion of counsel (which counsel shall be reasonably
     satisfactory to Administrative  Agent and Syndication  Agent) in the state,
     province or other relevant  jurisdiction in which such Additional Mortgaged
     Property  is  located  with  respect to the  enforceability  of the form of
     Additional  Mortgage  to be  recorded  in such  state,  province  or  other
     relevant  jurisdiction  and  such  other  matters  (including  any  matters
     governed by the laws of such state, province or other relevant jurisdiction
     regarding   personal  property   security   interests  in  respect  of  any
     Collateral) as  Administrative  Agent or  Syndication  Agent may reasonably
     request,  in each case in form and  substance  reasonably  satisfactory  to
     Administrative Agent and Syndication Agent;

          (iii) Landlord Consent and Estoppel;  Recorded Leasehold Interest.  In
     the case of an  Additional  Mortgaged  Property  consisting  of a Leasehold
     Property,  (a) a Landlord  Consent and Estoppel and (b) evidence  that such
     Leasehold Property is a Recorded Leasehold Interest;

          (iv)  Title  Insurance.  With  respect  to such  Additional  Mortgaged
     Property  located in the  United  States of  America,  (a) if  required  by
     Administrative   Agent  or  Syndication  Agent,  an  ALTA  mortgagee  title
     insurance policy or an unconditional  commitment  therefor or an equivalent
     policy or commitment  therefor  satisfactory  to  Administrative  Agent and
     Syndication  Agent) (an "Additional  Mortgage  Policy") issued by the Title
     Company with respect to such Additional  Mortgaged  Property,  in an amount
     satisfactory to Administrative  Agent and Syndication  Agent,  insuring fee
     simple  title  to,  or a  valid  leasehold  interest  in,  such  Additional
     Mortgaged  Property  vested in such Loan Party and assuring  Administrative
     Agent and Syndication  Agent that such Additional  Mortgage creates a valid
     and enforceable First Priority  mortgage Lien on such Additional  Mortgaged
     Property,  subject only to a standard survey  exception,  which  Additional
     Mortgage Policy (1) shall include an endorsement for mechanics'  liens, for
     future  advances under this Agreement and for any other matters


                                      108

<PAGE>

     reasonably  requested by Administrative  Agent or Syndication Agent and (2)
     shall  provide  for   affirmative   insurance  and  such   reinsurance   as
     Administrative  Agent or Syndication Agent may reasonably  request,  all of
     the   foregoing  in  form  and   substance   reasonably   satisfactory   to
     Administrative  Agent and Syndication Agent; and (b) evidence  satisfactory
     to Administrative  Agent and Syndication Agent that such Loan Party has (i)
     delivered to the Title Company all certificates and affidavits  required by
     the  Title  Company  in  connection  with the  issuance  of the  Additional
     Mortgage  Policy and (ii) paid to the Title  Company or to the  appropriate
     governmental  authorities all expenses and premiums of the Title Company in
     connection  with the  issuance of the  Additional  Mortgage  Policy and all
     recording and stamp taxes  (including  mortgage  recording  and  intangible
     taxes) payable in connection with recording the Additional  Mortgage in the
     appropriate real estate records;

          (v) Title Report.  If no Additional  Mortgage  Policy is required with
     respect to such Additional Mortgaged Property, a title report issued by the
     Title  Company  or (or title  certificate,  report  on title or  equivalent
     report with respect to any Additional  Mortgaged  Property  located outside
     the United States of America) thereto, dated not more than 30 days prior to
     the date such  Additional  Mortgage is to be recorded and  satisfactory  in
     form and substance to Administrative Agent and Syndication Agent;

          (vi) Copies of Documents  Relating to Title Exceptions.  Copies of all
     recorded  documents listed as exceptions to title or otherwise  referred to
     in the Additional  Mortgage  Policy or title report  delivered  pursuant to
     clause (v) or (vi) above;

          (vii) Matters Relating to U.S. Flood Hazard Properties.  To the extent
     such  Additional  Mortgaged  Property  is located  in the United  States of
     America,  (a)  evidence,  which  may be in the  form  of a  letter  from an
     insurance broker or a municipal engineer, as to (1) whether such Additional
     Mortgaged  Property is a Flood Hazard  Property and (2) if so,  whether the
     community in which such Flood Hazard  Property is located is  participating
     in the National Flood Insurance Program,  (b) if such Additional  Mortgaged
     Property  is  a  Flood  Hazard   Property,   such  Loan   Party's   written
     acknowledgement  of  receipt of written  notification  from  Administrative
     Agent and Syndication Agent (1) that such Additional  Mortgaged Property is
     a Flood Hazard  Property and (2) as to whether the  community in which such
     Flood Hazard  Property is located is  participating  in the National  Flood
     Insurance Program,  and (c) in the event such Additional Mortgaged Property
     is a Flood Hazard Property that is located in a community that participates
     in the National Flood Insurance Program, evidence that Company has obtained
     flood  insurance  in respect of such Flood  Hazard  Property  to the extent
     required under the applicable  regulations of the Board of Governors of the
     Federal Reserve System;

          (viii)   Real   Property   Taxes.   Evidence   satisfactory   to   the
     Administrative   Agent  and  Syndication  Agent  of  the  payment  by  such
     Subsidiary  Guarantor with respect to such Additional Mortgaged Property of
     all  unpaid  real  property  taxes  due and  payable  as of the date of the
     applicable Additional Mortgage;



                                      109
<PAGE>

          (ix) Special U.K. Matters. Delivery to Administrative Agent of (i) the
     results of H.M. Land Registry clear priority  searches in form 94D in favor
     of the  Administrative  Agent giving a priority  period of not less than 28
     days  relating to Real  Property  Assets of any such  Subsidiary  Guarantor
     located in the United  Kingdom  or (in the case of  unregistered  property)
     H.M. Land Charges Registry searches having an unexpired  priority period of
     not less than 18 days in respect of all estate owners since the date of the
     root of title with any entries thereon  certified as not affecting,  (ii) a
     duly  completed  and  signed  Land  Registry  application  form  A4 for the
     registration  of the U.K.  Guarantee and  Debenture  together with a cheque
     made  payable to H.M.  Land  Registry in respect of the  registration  fee,
     (iii) all title deeds to any Additional  Mortgaged  Property located in the
     United Kingdom,  (iv) signed but undated Notices of Charge addressed to the
     landlord  of each  Leasehold  Property  of any  such  Subsidiary  Guarantor
     located in the United Kingdom, together with a duplicate thereof; and

          (x)  Environmental  Audit.  If  required  by  Administrative  Agent or
     Syndication  Agent,  reports  and  other  information,  in form,  scope and
     substance  satisfactory to  Administrative  Agent and Syndication Agent and
     prepared by environmental  consultants satisfactory to Administrative Agent
     and Syndication Agent,  concerning any environmental hazards or liabilities
     to which Company or any of its  Subsidiaries may be subject with respect to
     such Additional Mortgaged Property.

     C. Real  Estate  Appraisals.  Company  shall,  and shall  cause each of its
Subsidiaries  to, permit an independent  real estate  appraiser  satisfactory to
Administrative Agent and Syndication Agent, upon reasonable notice, to visit and
inspect  any  Additional  Mortgaged  Property  for the purpose of  preparing  an
appraisal of such Additional  Mortgaged Property  satisfying the requirements of
any applicable  laws and  regulations (in each case to the extent required under
such laws and regulations as determined by Administrative  Agent and Syndication
Agent in its discretion).

6.10 Certain Post-Closing Matters.

     A. Real Estate  Appraisals.  Within 60 days  following  the  Closing  Date,
Administrative Agent shall have received appraisals  concerning the Closing Date
Mortgaged  Properties,   the  properties  located  at  Swindon (England), and
Plymouth (England) as more particularly described on Schedule 5.5 and  any other
Real  Estate  Assets  of  Company  or any  of its  Subsidiaries reasonably
requested by Administrative  Agent or Syndication Agent on or before the Closing
Date,  in each  case  from  one or more  independent  real  estate appraisers
reasonably  satisfactory  to  Syndication  Agent and  Administrative Agent,  in
form,  scope and  substance  satisfactory  to  Syndication  Agent and
Administrative  Agent and satisfying the requirements of any applicable laws and
regulations, in each case to the extent required under such laws and regulations
as determined by Administrative Agent in its discretion.

     B. Bromont.  Within 30 days following the Closing Date,  Company shall take
such actions and deliver to  Administrative  Agent such items as  Administrative
Agent or Syndication Agent may reasonably request to ensure that  Administrative
Agent has a First Priority Lien on all immovable  property of Company located in
the Province of Quebec including the delivery to  Administrative  Agent of (i) a
title  opinion  from  McCarthy  Tetrault  with  respect to the Bromont  property
located in the Province of Quebec as identified on Schedule 4.1H annexed  hereto
(the  "Bromont  Property")  (such title  opinion to indicate that


                                      110

<PAGE>

Company is the owner of the Bromont  Property free and clear of any Liens (other
than  Permitted  Encumbrances)  and  that  the  Deed of  Hypothec  executed  and
delivered  by Company on the Closing Date  substantially  in the form of Exhibit
XVI annexed hereto is a valid First  Priority Lien on the Bromont  Property) and
(ii) a complete  certificate  of  location,  in each case in form and  substance
satisfactory to Administrative Agent and Syndication Agent.

     C. Lincoln.  Within 30 days following the Closing Date, Company shall cause
legal and beneficial  ownership of the property located at Lincoln,  England, as
more specifically described on Schedule 5.5 annexed hereto, to vest in PSL.

     D. Scotts Valley. Within 60 days following the Closing Date, Administrative
Agent shall have  received each of the items  described in subsection  4.1H with
respect to the property of Mitel Semiconductor  Americas Inc. (formerly known as
GEC Plessey  Semiconductors  Inc.)  located in Scotts  Valley as  identified  on
Schedule 4.1H annexed hereto.

     E. Discounted  Notes. In the event Mitel Barbados  receives any payments on
redemption of any Discounted  Note,  Company shall ensure that Mitel Barbados
applies the total amount of such payments (net of costs and applicable taxes) to
either (i) subscribe for additional Discounted Notes within 24 hours of such
repayment or (ii) make a dividend payment to Company within two Business Days of
such receipt; it being understood that such net payments may be applied under
clauses (i) and (ii) in such proportions as Mitel Barbados may determine.

     F. NatWest Letter of Credit.  Within ten Business Days of the Closing Date,
(i) Company shall have  terminated any commitment to lend under,  and repaid all
outstanding Indebtedness under, the credit facility between National Westminster
Bank and PSL and (ii) the CIBC  Letter  of Credit  shall  have  expired  or been
terminated  and  all  Liens  on  any  collateral  securing  Company's  repayment
obligations with respect thereto shall have been released and terminated.

6.11 Interest Rate Protection.

     At all  times  after the date  which is 30 days  after  the  Closing  Date,
Company  shall  maintain in effect one or more  Interest  Rate  Agreements  with
respect to the Loans,  each such Interest Rate Agreement to be for a term and in
form  and  substance   reasonably   satisfactory   to   Syndication   Agent  and
Administrative Agent, which Interest Rate Agreements shall effectively limit the
Unadjusted  Eurodollar Rate Component (as  hereinafter  defined) of the interest
costs to Company with respect to an aggregate  notional  principal amount of not
less than 50% of the aggregate  principal  amount of the Term Loans  outstanding
from time to time (based on the assumption that such notional  principal  amount
was a Eurodollar  Rate Loan with an Interest  Period of three  months) to a rate
equal to not more than 7.5% per annum. For purposes of this subsection 6.10, the
term "Unadjusted Eurodollar Rate Component" means that component of the interest
costs to Company in  respect  of a  Eurodollar  Rate Loan that is based upon the
rate obtained pursuant to the first two paragraphs of the definition of Adjusted
Eurodollar Rate.


                                      111

<PAGE>

                                   SECTION 7.
                          COMPANY'S NEGATIVE COVENANTS

     Company  covenants  and  agrees  that,  so long  as any of the  Commitments
hereunder  shall remain in effect and until  payment in full of all of the Loans
and other  Obligations  and the  cancellation  or  expiration  of all Letters of
Credit,  unless  Requisite  Lenders shall otherwise give prior written  consent,
Company shall perform,  and shall cause each of its Subsidiaries to perform, all
covenants in this Section 7.

7.1  Indebtedness.

     Company  shall  not,  and  shall not  permit  any of its  Subsidiaries  to,
directly or indirectly,  create,  incur, assume or guaranty, or otherwise become
or remain  directly  or  indirectly  liable with  respect to, any  Indebtedness,
except:

          (i)  Company  may  become  and  remain  liable  with  respect  to  the
     Obligations;

          (ii) Company and its  Subsidiaries  may become and remain  liable with
     respect to Contingent Obligations permitted by subsection 7.4 and, upon any
     matured  obligations  actually arising pursuant  thereto,  the Indebtedness
     corresponding to the Contingent Obligations so extinguished;

          (iii) Company and its  Subsidiaries  may become and remain liable with
     respect to Indebtedness in respect of Capital Leases in an aggregate amount
     not to  exceed  $60,000,000  at any time  outstanding;  provided  that such
     maximum amount shall be increased by $5,000,000 on each  anniversary of the
     Closing Date;

          (iv) Company may become and remain liable with respect to Indebtedness
     to any of its wholly-owned Subsidiaries, and any wholly-owned Subsidiary of
     Company  may become and  remain  liable  with  respect to  Indebtedness  to
     Company or any other wholly-owned Subsidiary of Company;  provided that (a)
     all such intercompany  Indebtedness  shall be evidenced by promissory notes
     (each, an "Intercompany Note"), (b) all such intercompany Indebtedness owed
     by Company to any of its  Subsidiaries  shall be  subordinated  in right of
     payment to the payment in full of the Obligations  pursuant to the terms of
     the applicable promissory notes or an intercompany subordination agreement,
     and (c) any payment by any  Subsidiary of Company under any guaranty of the
     Obligations  shall  result in a pro tanto  reduction  of the  amount of any
     intercompany  Indebtedness  owed by such Subsidiary to Company or to any of
     its Subsidiaries for whose benefit such payment is made;

          (v) Company and its  Subsidiaries,  as  applicable,  may remain liable
     with respect to Indebtedness described in Schedule 7.1 annexed hereto;

          (vi) Company and its  Subsidiaries  may become and remain  liable with
     respect  to other  Indebtedness  in an  aggregate  principal  amount not to
     exceed $20,000,000 at any time outstanding.

                                      112

<PAGE>

7.2  Liens and Related Matters.

     A. Prohibition on Liens. Company shall not, and shall not permit any of its
Subsidiaries  to,  directly or indirectly,  create,  incur,  assume or permit to
exist  any  Lien on or  with  respect  to any  property  or  asset  of any  kind
(including   any  document  or  instrument  in  respect  of  goods  or  accounts
receivable)  of  Company  or any of  its  Subsidiaries,  whether  now  owned  or
hereafter  acquired,  or any income or profits therefrom,  or file or permit the
filing  of, or permit to remain in  effect,  any  financing  statement  or other
similar notice of any Lien with respect to any such property,  asset,  income or
profits  under the  Uniform  Commercial  Code of any State or under any  similar
recording or notice statute, except:

          (i)  Permitted Encumbrances;

          (ii) Liens granted pursuant to the Collateral Documents;

          (iii) Liens described in Schedule 7.2 annexed hereto;

          (iv) Liens on cash deposits at CIBC securing the Company's obligations
               under the CIBC Letter of Credit  pursuant to  subsection  7.4(x);
               and

          (v)  Other Liens securing  Indebtedness in an aggregate  amount not to
               exceed $10,000,000 at any time outstanding.

     B.  Equitable  Lien  in  Favor  of  Lenders.  If  Company  or  any  of  its
Subsidiaries  shall  create or assume  any Lien  upon any of its  properties  or
assets,  whether now owned or hereafter  acquired,  other than Liens excepted by
the  provisions of subsection  7.2A, it shall make or cause to be made effective
provision  whereby  the  Obligations  will be secured by such Lien  equally  and
ratably with any and all other Indebtedness  secured thereby as long as any such
Indebtedness shall be so secured; provided that,  notwithstanding the foregoing,
this  covenant  shall not be construed as a consent by Requisite  Lenders to the
creation or  assumption  of any such Lien not  permitted  by the  provisions  of
subsection 7.2A.

     C. No Further Negative  Pledges.  Except with respect to specific  property
encumbered to secure payment of particular  Indebtedness  or to be sold pursuant
to an executed  agreement with respect to an Asset Sale, neither Company nor any
of its  Subsidiaries  shall enter into any  agreement  (other than any agreement
prohibiting  only the  creation  of Liens  securing  Subordinated  Indebtedness)
prohibiting the creation or assumption of any Lien upon any of its properties or
assets, whether now owned or hereafter acquired.

     D.  No  Restrictions  on  Subsidiary  Distributions  to  Company  or  Other
Subsidiaries.  Except as provided herein,  Company will not, and will not permit
any of its  Subsidiaries  to,  create or  otherwise  cause or suffer to exist or
become  effective any  consensual  encumbrance or restriction of any kind on the
ability  of  any  such  Subsidiary  to (i)  pay  dividends  or  make  any  other
distributions on any of such Subsidiary's  capital stock owned by Company or any
other Subsidiary of Company,  (ii) repay or prepay any Indebtedness owed by such
Subsidiary to Company or any other  Subsidiary  of Company,  (iii) make loans or
advances to Company or any other Subsidiary of Company,  or (iv) transfer any of
its property or assets to Company or any other Subsidiary of Company.



                                      113
<PAGE>

7.3  Investments; Joint Ventures.

     Company  shall  not,  and  shall not  permit  any of its  Subsidiaries  to,
directly or indirectly,  make or own any Investment in any Person, including any
Joint Venture, except:

          (i) Company and its  Subsidiaries may make and own Investments in Cash
     Equivalents;

          (ii)  Company  and  its  Subsidiaries  may  (a)  continue  to own  the
     Investments  owned by them as of the Closing  Date in any  Subsidiaries  of
     Company, (b) make and maintain Investments in any Subsidiary Guarantor from
     and  after  the  Closing  Date  and  (c)  make  Investments  in  Immaterial
     Subsidiaries  from and after the Closing  Date in an  aggregate  cumulative
     amount not to exceed $5,000,000;  provided, however, that to the extent any
     such  Immaterial  Subsidiary  becomes a Subsidiary  Guarantor after or as a
     result of any such  Investment  under this  clause  (c),  the amount of all
     Investments  in such  Immaterial  Subsidiary  pursuant  to this  subsection
     7.3(ii)  shall  not  then  be  counted  towards  the  foregoing  $5,000,000
     limitation;

          (iii) Company and its Subsidiaries may make intercompany  loans to the
     extent permitted under subsection 7.1(iv);

          (iv)  Company  and its  Subsidiaries  may  make  Consolidated  Capital
     Expenditures permitted by subsection 7.8;

          (v) Company and its  Subsidiaries  may continue to own the Investments
     owned by them and described in Schedule 7.3 annexed hereto; and

          (vi) Company and its Subsidiaries  may make and own other  Investments
     in an aggregate amount not to exceed at any time $10,000,000.

7.4  Contingent Obligations.

     Company  shall  not,  and  shall not  permit  any of its  Subsidiaries  to,
directly or  indirectly,  create or become or remain  liable with respect to any
Contingent Obligation, except:

          (i)  Subsidiaries of Company may become and remain liable with respect
     to Contingent Obligations in respect of the Guaranties;

          (ii) Company may become and remain  liable with respect to  Contingent
     Obligations in respect of Letters of Credit;

          (iii)  Company may become and remain liable with respect to Contingent
     Obligations  under Interest Rate Agreements  required under subsection 6.11
     in an aggregate  notional amount not to exceed the principal  amount of the
     Term Loans at any time  outstanding;  provided that Company shall not enter
     into  any  Interest  Rate  Agreement  for  the  purposes  of  arbitrage  or
     speculation;

          (iv) Company may become and remain  liable with respect to  Contingent
     Obligations under Currency  Agreements  entered into in the ordinary course
     of


                                      114

<PAGE>

     Company's  business and designed to hedge against  fluctuations in currency
     values;  provided  that (a) Company  shall not enter into any such Currency
     Agreement with a term in excess of 24 months and (b) the aggregate notional
     principal amount  outstanding at any date of  determination  under all such
     Currency Agreements shall not exceed $500,000,000;  it being understood and
     agreed that  Company  shall not enter into any Currency  Agreement  for the
     purposes of arbitrage or speculation;

          (v) Company  and its  Subsidiaries  may become and remain  liable with
     respect to Contingent  Obligations in respect of customary  indemnification
     and purchase price adjustment obligations incurred in connection with Asset
     Sales or other sales of assets;

          (vi) Company and its  Subsidiaries  may become and remain  liable with
     respect to Contingent  Obligations  under guarantees in the ordinary course
     of business of the  obligations of suppliers,  customers,  franchisees  and
     licensees of Company and its  Subsidiaries  in an  aggregate  amount not to
     exceed at any time $10,000,000;

          (vii) Company and its  Subsidiaries  may become and remain liable with
     respect to Contingent Obligations in respect of any Indebtedness of Company
     or any of its Subsidiaries permitted by subsection 7.1(vi);

          (viii) Company and its  Subsidiaries may become and remain liable with
     respect to Contingent  Obligations  in respect of surety bonds for business
     communications  systems bids to install PBX systems in an aggregate  amount
     not to exceed at any time $30,000,000;

          (ix) Company and its  Subsidiaries,  as applicable,  may remain liable
     with respect to  Contingent  Obligations  described in Schedule 7.4 annexed
     hereto, it being understood and agreed that any Interest Rate Agreements or
     Currency  Agreements  listed  on such  Schedule  shall be  included  in the
     calculations contained in subsections 7.4(iii) and 7.4(iv), as applicable;

          (x) during the 14-day period next succeeding the Closing Date, Company
     may become and remain liable with respect to the Contingent  Obligations in
     respect of the CIBC Letter of Credit;

          (xi)  Company may become and remain  liable with respect to a guaranty
     of the obligations of PSL pursuant to that certain Capital Lease in respect
     of the  property  located at Plymouth,  England;  provided  that  Company's
     aggregate  liability under such guaranty at any time outstanding  shall not
     exceed $17,000,000; and

          (xii) Company and its  Subsidiaries  may become and remain liable with
     respect  to  other  Contingent  Obligations;   provided  that  the  maximum
     aggregate   liability,   contingent  or  otherwise,   of  Company  and  its
     Subsidiaries in respect of all such Contingent Obligations shall at no time
     exceed $10,000,000.



                                      115

<PAGE>

7.5  Restricted Junior Payments.

     Company  shall  not,  and  shall not  permit  any of its  Subsidiaries  to,
directly or indirectly,  declare,  order, pay, make or set apart any sum for any
Restricted  Junior  Payment;  provided  that so long as no Event of  Default  or
Potential  Event of Default  shall have  occurred and be  continuing or shall be
caused thereby,  Company may (a) make scheduled dividend payments to the holders
of the Company Preferred Stock pursuant to the terms of the Company  Certificate
of Designations in an aggregate amount not to exceed Cdn$3,250,000 in any Fiscal
Year (b) make  scheduled  repurchases  of  shares  of  Company  Preferred  Stock
pursuant  to  the  Company   Certificate  of   Designations   for  an  aggregate
consideration not to exceed Cdn$2,250,000 in any Fiscal Year, and (c) may redeem
or repurchase  options to purchase  shares of Company's  common stock granted to
Company's employees in lieu of such employees exercising such options.

7.6  Financial Covenants.

     A. Minimum Interest  Coverage Ratio.  Company shall not permit the ratio of
(i)  Consolidated  Adjusted  EBITDA to (ii)  Consolidated  Interest  Expense  as
measured  on the  last  day of  each  Fiscal  Quarter  (the  "Reference  Date"),
commencing  with the last day of the first  Fiscal  Quarter of Fiscal Year 1999,
for any four Fiscal Quarter period ending on any Reference Date, to be less than
the correlative ratio applicable below:


                                      116
<PAGE>

================================================================================
                                                      Minimum
                                                      Interest
    Reference Date                                 Coverage Ratio
================================================================================
First Fiscal Quarter 1999                             4.50:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 1999                            4.75:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 1999                             5.00:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 1999                            5.00:1.00
- --------------------------------------------------------------------------------
First Fiscal Quarter 2000                             7.00:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 2000                            7.00:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 2000                             7.00:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 2000                            7.00:1.00
- --------------------------------------------------------------------------------
First Fiscal Quarter 2001                            10.00:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 2001                           10.00:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 2001                            10.00:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 2001                           10.00:1.00
- --------------------------------------------------------------------------------
First Fiscal Quarter 2002                            10.00:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 2002                           10.00:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 2002                            10.00:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 2002                           10.00:1.00
- --------------------------------------------------------------------------------
First Fiscal Quarter 2003                            10.00:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 2003                           10.00:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 2003                            10.00:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 2003                           10.00:1.00
- --------------------------------------------------------------------------------
First Fiscal Quarter 2004                            10.00:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 2004                           10.00:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 2004                            10.00:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 2004                           10.00:1.00
================================================================================

     B. Minimum Fixed Charge Coverage Ratio.  Company shall not permit the ratio
of (i)  Consolidated  Adjusted  EBITDA to (ii)  Consolidated  Fixed  Charges  as
measured  on the  last  day of  each  Fiscal  Quarter  (the  "Reference  Date"),
commencing  with the last day of the


                                      117
<PAGE>

first Fiscal  Quarter of Fiscal Year 1999,  for any four Fiscal  Quarter  period
ending on any Reference Date, to be less than the correlative  ratio  applicable
below:

                                      118
<PAGE>

================================================================================
                                                      Minimum
                                                    Fixed Charge
     Reference Date                                Coverage Ratio
================================================================================
First Fiscal Quarter 1999                             1.05:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 1999                            1.05:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 1999                             1.05:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 1999                            1.05:1.00
- --------------------------------------------------------------------------------
First Fiscal Quarter 2000                             1.10:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 2000                            1.10:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 2000                             1.10:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 2000                            1.10:1.00
- --------------------------------------------------------------------------------
First Fiscal Quarter 2001                             1.20:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 2001                            1.20:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 2001                             1.20:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 2001                            1.20:1.00
- --------------------------------------------------------------------------------
First Fiscal Quarter 2002                             1.25:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 2002                            1.25:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 2002                             1.25:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 2002                            1.25:1.00
- --------------------------------------------------------------------------------
First Fiscal Quarter 2003                             1.25:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 2003                            1.25:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 2003                             1.25:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 2003                            1.25:1.00
- --------------------------------------------------------------------------------
First Fiscal Quarter 2004                             1.25:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 2004                            1.25:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 2004                             1.25:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 2004                            1.25:1.00
================================================================================

                                      119
<PAGE>

     C.  Maximum  Leverage  Ratio.  Company  shall not permit  the  Consolidated
Leverage  Ratio  as  measured  on the  last  day of  each  Fiscal  Quarter  (the
"Reference  Date"),  commencing with the last day of the first Fiscal Quarter of
Fiscal Year 1999,  for any four Fiscal  Quarter  period  ending on any Reference
Date, to exceed the correlative ratio applicable below:


                                      120
<PAGE>

================================================================================
                                                      Maximum
    Reference Date                                 Leverage Ratio
================================================================================
First Fiscal Quarter 1999                             2.60:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 1999                            2.40:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 1999                             2.30:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 1999                            2.10:1.00
- --------------------------------------------------------------------------------
First Fiscal Quarter 2000                             1.50:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 2000                            1.50:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 2000                             1.50:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 2000                            1.50:1.00
- --------------------------------------------------------------------------------
First Fiscal Quarter 2001                             1.00:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 2001                            1.00:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 2001                             1.00:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 2001                            1.00:1.00
- --------------------------------------------------------------------------------
First Fiscal Quarter 2002                             1.00:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 2002                            1.00:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 2002                             1.00:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 2002                            1.00:1.00
- --------------------------------------------------------------------------------
First Fiscal Quarter 2003                             1.00:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 2003                            1.00:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 2003                             1.00:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 2003                            1.00:1.00
- --------------------------------------------------------------------------------
First Fiscal Quarter 2004                             1.00:1.00
- --------------------------------------------------------------------------------
Second Fiscal Quarter 2004                            1.00:1.00
- --------------------------------------------------------------------------------
Third Fiscal Quarter 2004                             1.00:1.00
- --------------------------------------------------------------------------------
Fourth Fiscal Quarter 2004                            1.00:1.00
================================================================================

     D. Minimum  Consolidated Net Worth.  Company shall not permit  Consolidated
Net Worth at any time during any Fiscal Quarter commencing with the first Fiscal
Quarter of the 1999 Fiscal Year to be less than the sum of (i)  Consolidated Net
Worth as of the last day of the next  preceding  Fiscal Quarter plus (ii) 75% of
Consolidated Net Income during such Fiscal Quarter.



                                      121
<PAGE>

7.7  Restriction on Fundamental Changes; Asset Sales and Acquisitions.

     Company shall not, and shall not permit any of its  Subsidiaries  to, alter
the corporate, capital or legal structure of Company or any of its Subsidiaries,
or enter into any transaction of merger or consolidation,  or liquidate, wind-up
or dissolve itself (or suffer any liquidation or dissolution),  or convey, sell,
lease or sub-lease (as lessor or sublessor),  transfer or otherwise  dispose of,
in one transaction or a series of transactions, all or any part of its business,
property  or assets,  whether  now owned or  hereafter  acquired,  or acquire by
purchase or otherwise all or substantially  all the business,  property or fixed
assets of, or stock or other evidence of beneficial  ownership of, any Person or
any  division  or line of  business  of, or  operating  unit,  business  unit or
technology unit of any Person, except:

          (i) (a) any  Subsidiary  of Company may be merged with or into Company
     or any wholly-owned  Subsidiary  Guarantor,  or be liquidated,  wound up or
     dissolved,  or all or any part of its  business,  property or assets may be
     conveyed,  sold,  leased,  transferred  or  otherwise  disposed  of, in one
     transaction  or a series of  transactions,  to Company or any  wholly-owned
     Subsidiary Guarantor;  provided that, in the case of such a merger, Company
     or such  wholly-owned  Subsidiary  Guarantor  shall  be the  continuing  or
     surviving  corporation and (b) any Immaterial  Subsidiary of Company may be
     merged with or into any wholly-owned  Immaterial  Subsidiary of Company, or
     be liquidated,  wound up or dissolved,  or all or any part of its business,
     property or assets may be conveyed, sold, leased,  transferred or otherwise
     disposed  of,  in one  transaction  or a  series  of  transactions,  to any
     wholly-owned Immaterial Subsidiary;

          (ii)  Company  and its  Subsidiaries  may  make  Consolidated  Capital
     Expenditures permitted under subsection 7.8;

          (iii) Company and its Subsidiaries  may dispose of obsolete,  worn out
     or surplus property in the ordinary course of business;

          (iv) Company and its  Subsidiaries  may sell or  otherwise  dispose of
     assets in transactions  that do not constitute  Asset Sales;  provided that
     the  consideration  received for such assets shall be in an amount at least
     equal to the fair market value thereof;

          (v) so long as no Event of Default has occurred and is  continuing  or
     would be caused thereby,  Company and its  Subsidiaries  may consummate the
     Acquisition  and may make  Permitted  Acquisitions;  provided  that Company
     shall  comply  with any  requirements  set forth  herein  (including  under
     subsection  6.1(xviii)) and, to the extent such Permitted Acquisition is of
     the equity  interest of any Person,  such Person shall be a  Subsidiary  of
     Company upon giving effect to such Permitted Acquisition or shall be merged
     with and into  Company  or one of its  Subsidiaries  within two days of the
     consummation  of  such  Permitted   Acquisition;   provided  further  that,
     notwithstanding  anything in the foregoing to the contrary,  (a) during the
     180 day period following the Closing Date, Company and its Subsidiaries may
     not make (1) more than two  Permitted  Acquisitions  and (2) any  Permitted
     Acquisition in one or a series of related transactions if (x) the aggregate
     purchase price of such Permitted Acquisition exceeds $50,000,000 or (y) the
     aggregate purchase price of all such Permitted Acquisitions during such 180
     day  period  exceeds  $75,000,000;  and (b) from and  after  the  181st day
     following the Closing Date, Company and its Subsidiaries shall not make any
     Permitted Acquisition in one or a series of related transactions if (A) the
     aggregate


                                      122
<PAGE>

     purchase price of such Permitted Acquisition exceeds $25,000,000 or (B) the
     aggregate  purchase  price of all such  Permitted  Acquisitions  since such
     181st day exceeds $35,000,000; and

          (vi) subject to subsection 7.13 and so long as no Event of Default has
     occurred and is  continuing  or would be caused  thereby,  (a) PSL may make
     Asset Sales in respect of the  property  and  business  located in Lincoln,
     England as more fully described on Schedule 5.5 annexed hereto, (b) Company
     and its Subsidiaries may make Asset Sales in connection with the closing of
     offices of Company and its  Subsidiaries  which offices were made redundant
     to the  business  of  Company  and  its  Subsidiaries  as a  result  of the
     Acquisition  as  determined  by the Board of  Directors  of Company and (c)
     Company and its  Subsidiaries may make other Asset Sales of assets having a
     fair  market  value  not in excess of  $25,000,000;  provided  that (x) the
     consideration  received for any assets in the foregoing clauses (a) through
     (c) above  shall be in an amount at least  equal to the fair  market  value
     thereof;  (y) the sole  consideration  received  shall be cash; and (z) the
     proceeds of such Asset  Sales  shall be applied as  required by  subsection
     2.4B(iii)(a).

7.8  Consolidated Capital Expenditures.

     Company shall not, and shall not permit its  Subsidiaries to, make or incur
Consolidated  Capital  Expenditures,  in any Fiscal Year indicated  below, in an
aggregate amount in excess of the corresponding  amount set forth below opposite
such Fiscal Year (the "Target Amount"); provided that if the aggregate amount of
Consolidated  Capital  Expenditures  for the immediately  preceding  Fiscal Year
(commencing  with the 1999 Fiscal Year) is less than the Target  Amount for such
immediately  preceding Fiscal Year, then 50% of the sum of (i) the Target Amount
for such  immediately  preceding  Fiscal  Year  (as  adjusted  pursuant  to this
subsection  7.8)  minus  (ii) the  Consolidated  Capital  Expenditures  for such
immediately  preceding  Fiscal Year, shall be added to the Target Amount for the
current Fiscal Year:

         ===========================================================
                                                Maximum
                Fiscal Year                  Consolidated
                                                Capital
                                             Expenditures
         ===========================================================
                   1999                      $110,000,000
         -----------------------------------------------------------
                   2000                      $130,000,000
         -----------------------------------------------------------
                   2001                      $135,000,000
         -----------------------------------------------------------
                   2002                      $145,000,000
         -----------------------------------------------------------
                   2003                      $160,000,000
         -----------------------------------------------------------
                   2004                      $175,000,000
         ===========================================================


                                      123

<PAGE>

7.9  Restriction on Operating Leases.

     Company shall not, and shall not permit any of its  Subsidiaries to, become
liable in any way,  whether directly or by assignment or as a guarantor or other
surety,  for the obligations of the lessee under any Operating Lease (other than
intercompany leases between Company and its wholly owned Subsidiaries),  unless,
immediately  after giving effect to the  incurrence of liability with respect to
such Operating  Lease,  the  Consolidated  Rental Payments at the time in effect
during the then current Fiscal Year shall not exceed $20,000,000.

7.10 Sales and Lease-Backs.

     Company  shall  not,  and  shall not  permit  any of its  Subsidiaries  to,
directly or  indirectly,  become or remain liable as lessee or as a guarantor or
other surety with respect to any lease,  whether an Operating Lease or a Capital
Lease, of any property (whether real,  personal or mixed),  whether now owned or
hereafter  acquired,  (i) which Company or any of its  Subsidiaries  has sold or
transferred or is to sell or transfer to any other Person (other than Company or
any of its  Subsidiaries)  or  (ii)  which  Company  or any of its  Subsidiaries
intends to use for  substantially  the same purpose as any other  property which
has been or is to be sold or transferred  by Company or any of its  Subsidiaries
to any Person (other than Company or any of its Subsidiaries) in connection with
such lease;  provided,  however, that Mitel Telecom may become and remain liable
as lessee with respect to (a) sales and lease-back  transactions with respect to
assets with a fair market value not to exceed  (pound)2,500,000 in the aggregate
for any Fiscal Year for the purpose of  acquiring  such assets and (b) sales and
lease-back  transactions  in  existence  on the  Closing  Date and set  forth on
Schedule 7.10 annexed hereto.

7.11 Sale or Discount of Receivables.

     Company  shall  not,  and  shall not  permit  any of its  Subsidiaries  to,
directly or indirectly,  sell with  recourse,  or discount or otherwise sell for
less than the face value thereof, any of its notes or accounts receivable.

7.12 Transactions with Shareholders and Affiliates.

     Company  shall  not,  and  shall not  permit  any of its  Subsidiaries  to,
directly or indirectly, enter into or permit to exist any transaction (including
the  purchase,  sale,  lease or exchange of any property or the rendering of any
service)  with any  holder of 5% or more of any class of  equity  Securities  of
Company or with any  Affiliate of Company or of any such  holder,  on terms that
are less favorable to Company or that Subsidiary, as the case may be, than those
that might be  obtained  at the time from  Persons  who are not such a holder or
Affiliate;  provided that the foregoing  restriction  shall not apply to (i) any
transaction between Company and any of its wholly-owned  Subsidiaries or between
any of its wholly-owned  Subsidiaries or (ii) reasonable and customary fees paid
to members of the Boards of Directors of Company and its Subsidiaries.

7.13 Disposal of Subsidiary Stock.

     Except for any sale of 100% of the capital stock or other equity Securities
of any of its  Subsidiaries  in  compliance  with the  provisions  of subsection
7.7(v), Company shall not:



                                      124
<PAGE>

          (i) directly or indirectly sell, assign,  pledge or otherwise encumber
     or dispose of any shares of capital stock or other equity Securities of any
     of its Subsidiaries,  except to qualify directors if required by applicable
     law; or

          (ii) permit any of its  Subsidiaries  directly or  indirectly to sell,
     assign,  pledge or  otherwise  encumber or dispose of any shares of capital
     stock or other equity Securities of any of its Subsidiaries (including such
     Subsidiary),  except to  Company,  another  Subsidiary  of  Company,  or to
     qualify directors if required by applicable law.

7.14 Conduct of Business.

     From and after the Closing  Date,  Company  shall not, and shall not permit
any of its  Subsidiaries  to, engage in any business  other than the  businesses
engaged in by Company and its  Subsidiaries  on the Closing  Date and similar or
related businesses.

7.15 Amendments  or Waivers  of  Related  Agreements;  Amendments  of  Documents
     Relating to Subordinated Indebtedness.

     A. Amendments or Waivers of Related Agreements.  Neither Company nor any of
its  Subsidiaries  will agree to any material  amendment to, or waive any of its
material  rights  under,  any Related  Agreement or the Company  Certificate  of
Designation  after the Closing  Date  without in each case  obtaining  the prior
written consent of Requisite Lenders to such amendment or waiver.

     B. Amendments of Documents Relating to Subordinated  Indebtedness.  Company
shall not, and shall not permit any of its  Subsidiaries  to, amend or otherwise
change  the  terms  of  any  Subordinated  Indebtedness,  or  make  any  payment
consistent with an amendment  thereof or change  thereto,  if the effect of such
amendment  or change  is to  increase  the  interest  rate on such  Subordinated
Indebtedness,  change  (to  earlier  dates) any dates  upon  which  payments  of
principal or interest are due thereon,  change any event of default or condition
to an event of default with respect  thereto  (other than to eliminate  any such
event of default or  increase  any grace  period  related  thereto),  change the
redemption,   prepayment   or   defeasance   provisions   thereof,   change  the
subordination  provisions  thereof (or of any guaranty  thereof),  or change any
collateral therefor (other than to release such collateral), or if the effect of
such amendment or change, together with all other amendments or changes made, is
to increase  materially the  obligations of the obligor  thereunder or to confer
any additional  rights on the holders of such  Subordinated  Indebtedness  (or a
trustee  or other  representative  on their  behalf)  which  would be adverse to
Company or Lenders.



                                      125
<PAGE>

7.16 Fiscal Year

     Company shall not change its Fiscal Year-end from the last Friday in March.

                                   SECTION 8.
                                EVENTS OF DEFAULT

     If any of the following  conditions or events  ("Events of Default")  shall
occur:

8.1  Failure to Make Payments When Due.

     Failure by Company to pay any  installment  of  principal  of any Loan when
due,  whether  at stated  maturity,  by  acceleration,  by  notice of  voluntary
prepayment, by mandatory prepayment or otherwise; failure by Company to pay when
due any amount  payable to an Issuing  Lender in  reimbursement  of any  drawing
under a Letter of Credit;  failure by Company to pay any interest on any Loan or
any fee or any other amount due under this Agreement within three days after the
date due;  or failure  by  Company  to pay any amount  when due under any Lender
Hedge Agreement; or

8.2  Default in Other Agreements.

     (i)  Failure  of  Company  or any of its  Subsidiaries  to pay when due any
principal  of or  interest on or any other  amount  payable in respect of one or
more items of Indebtedness  (other than  Indebtedness  referred to in subsection
8.1) or Contingent  Obligations in an individual principal amount of $500,000 or
more or with an  aggregate  principal  amount of $750,000 or more,  in each case
beyond the end of any grace period provided therefor;  or (ii) breach or default
by Company or any of its Subsidiaries with respect to any other material term of
(a)  one  or  more  items  of  Indebtedness  or  Contingent  Obligations  in the
individual or aggregate principal amounts referred to in clause (i) above or (b)
any loan  agreement,  mortgage,  indenture or other  agreement  relating to such
item(s)  of  Indebtedness  or  Contingent  Obligation(s),  if the effect of such
breach or  default  is to cause,  or to permit  the  holder or  holders  of that
Indebtedness or Contingent  Obligation(s) (or a trustee on behalf of such holder
or holders) to cause, that Indebtedness or Contingent Obligation(s) to become or
be declared due and payable prior to its stated  maturity or the stated maturity
of any underlying  obligation,  as the case may be (upon the giving or receiving
of notice, lapse of time, both, or otherwise); or

8.3  Breach of Certain Covenants.

     Failure  of  Company  to  perform  or  comply  with any  term or  condition
contained in subsection 2.5 or 6.2 or Section 7 of this Agreement; or

8.4  Breach of Warranty.

     Any  representation,  warranty,  certification  or other  statement made by
Company or any of its  Subsidiaries  in any Loan Document or in any statement or
certificate at any time given by Company or any of its  Subsidiaries  in writing
pursuant hereto or thereto or in connection herewith or therewith shall be false
in any material respect on the date as of which made; or

                                      126

<PAGE>

8.5  Other Defaults Under Loan Documents.

     Any Loan Party shall default in the  performance of or compliance  with any
term contained in this Agreement or any of the other Loan Documents,  other than
any such term  referred to in any other  subsection  of this Section 8, and such
default  shall not have been remedied or waived within 30 days after the earlier
of (i) an officer of Company or such Loan Party  becoming  aware of such default
or (ii) receipt by Company and such Loan Party of notice from Syndication Agent,
Administrative Agent or any Lender of such default; or

8.6  Involuntary Bankruptcy; Appointment of Receiver, etc.

     (i) A court having  jurisdiction  in the  premises  shall enter a decree or
order  for  relief  in  respect  of  Company  or any of its  Subsidiaries  in an
involuntary  case  under  the  Bankruptcy  Code or under  any  other  applicable
bankruptcy,  insolvency or similar law now or hereafter in effect,  which decree
or order is not stayed;  or any other similar  relief shall be granted under any
applicable  federal or state law; or (ii) an involuntary case shall be commenced
against  Company or any of its  Subsidiaries  under the Bankruptcy Code or under
any other applicable  bankruptcy,  insolvency or similar law now or hereafter in
effect; or a decree or order of a court having  jurisdiction in the premises for
the appointment of a receiver, liquidator,  sequestrator,  trustee, custodian or
other officer having similar powers over Company or any of its Subsidiaries,  or
over all or a  substantial  part of its property,  shall have been  entered;  or
there shall have occurred the  involuntary  appointment of an interim  receiver,
trustee or other  custodian of Company or any of its  Subsidiaries  for all or a
substantial  part of its  property;  or a warrant of  attachment,  execution  or
similar  process  shall have been  issued  against any  substantial  part of the
property of Company or any of its Subsidiaries,  and any such event described in
this  clause  (ii)  shall  continue  for 60 days  unless  dismissed,  bonded  or
discharged;  or (iii) a petition is presented or meeting convened or application
made for the  purpose of  appointing  an  administrator  or for the making of an
administration order in respect of any U.K. Subsidiary; or

8.7  Voluntary Bankruptcy; Appointment of Receiver, etc.

     (i)  Company  or any of its  Subsidiaries  shall  have an order for  relief
entered  with  respect to it or commence a voluntary  case under the  Bankruptcy
Code or under any other applicable bankruptcy,  insolvency or similar law now or
hereafter in effect,  or shall consent 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 shall  consent  to the  appointment  of or taking
possession  by a receiver,  trustee or other  custodian for all or a substantial
part of its property (or, in the case of any U.K. Subsidiary, shall be deemed to
be unable to pay its debts as they fall due for the purpose of section 123(1) of
the Insolvency Act 1986 of the United Kingdom as in effect from time to time (on
the basis that the words (a) "in a sum exceeding (pounds)750" are deemed
replaced in section 123(1) by the words "in a sum exceeding $500,000" and (b)
"proved to the  satisfaction  of the court" are deemed omitted from section
123(1)(e));  or Company or any of its  Subsidiaries  shall make any assignment
for the benefit of creditors;  or (ii) Company or any of its Subsidiaries shall
be unable, or shall fail generally, or shall admit in writing its  inability, to
pay its  debts as such  debts  become  due;  or the Board of Directors of
Company or any of its Subsidiaries (or any committee thereof) shall adopt any
resolution  or otherwise  authorize  any action to approve any of the actions
referred to in clause (i) above or this clause (ii); or


                                      127

<PAGE>

8.8  Judgments and Attachments.

     Any money  judgment,  writ or warrant  of  attachment  or  similar  process
involving (i) in any  individual  case an amount in excess of $1,000,000 or (ii)
in the aggregate at any time an amount in excess of  $2,500,000  (in either case
not  adequately  covered by  insurance  as to which a solvent  and  unaffiliated
insurance  company has acknowledged  coverage) shall be entered or filed against
Company or any of its Subsidiaries or any of their  respective  assets and shall
remain  undischarged,  undisputed (in the case of a writ in the United Kingdom),
unvacated,  unbonded or unstayed  for a period of 60 days (or in any event later
than five days prior to the date of any proposed sale thereunder); or

8.9  Dissolution.

     Any order,  judgment or decree shall be entered  against  Company or any of
its  Subsidiaries  decreeing  the  dissolution  or split up of  Company  or that
Subsidiary and such order shall remain  undischarged or unstayed for a period in
excess of 30 days; or

8.10 Employee Benefit Plans.

     There shall occur one or more ERISA  Events or Foreign  Benefit Plan Events
which  individually or in the aggregate results in liability of Company,  any of
its  Subsidiaries  or any of their  respective  ERISA  Affiliates  in  excess of
$1,000,000  during the term of this  Agreement;  or there shall exist, as of any
valuation  date for a Pension  Plan,  an excess of the  actuarial  present value
(determined on the basis of reasonable  assumptions  employed by the independent
actuary for such  Pension  Plan for funding  purposes)  of benefit  liabilities,
whether or not vested,  over the fair market value of the assets of such Pension
Plan (for a U.S. Pension Plan, the "amount of unfunded  benefit  liabilities" as
defined in Section 4001(a)(18) of ERISA); for a Foreign Pension Plan, the amount
of  benefit  liabilities  for  which  assets  have not been  placed  in trust or
adequate  contributions  made  to a  pension  insurance  scheme  in  respect  of
employees  covered  by  such  Foreign  Pension  Plan),  individually  or in  the
aggregate for all Pension Plans  (excluding for purposes of such computation any
Pension  Plans with  respect to which  there is no such  excess)  which  exceeds
$5,000,000; or

8.11 Material Adverse Effect.

     Any event or change shall occur that has caused or evidences, either in any
case or in the aggregate a Material Adverse Effect; or

                                      128

<PAGE>

8.12 Change in Control.

     Either (i) any Person or any two or more  Persons  acting in concert  shall
have  acquired  beneficial  ownership  (within  the meaning of Rule 13d-3 of the
Securities  and  Exchange  Commission  under  the  Exchange  Act),  directly  or
indirectly,  of Securities of Company (or other Securities convertible into such
Securities)  representing  35% or  more  of the  combined  voting  power  of all
Securities of Company entitled to vote in the election of directors,  other than
Securities  having such power only by reason of the happening of a  contingency,
or (ii) at any point during any period of two consecutive years, individuals who
at the  beginning  of such  period  constituted  Company's  Board  of  Directors
(together  with any new  member  of the Board of  Directors  whose  election  by
Company's  Board of  Directors  or whose  nomination  for  election by Company's
stockholders was approved by a vote of a majority of the directors then still in
office  who either  were  directors  at the  beginning  of such  period or whose
election or nomination  for election was  previously so approved)  cease for any
reason to constitute a majority of the directors then in office; or

8.13 Invalidity of Guaranties; Failure of Security; Repudiation of Obligations.

     At any time after the execution and delivery thereof,  (i) any Guaranty for
any reason, other than the satisfaction in full of all Obligations,  shall cease
to be in full  force and effect  (other  than in  accordance  with its terms) or
shall be declared to be null and void, (ii) any Collateral  Document shall cease
to be in full force and effect  (other than by reason of a release of Collateral
thereunder in accordance with the terms hereof or thereof,  the  satisfaction in
full of the Obligations or any other termination of such Collateral  Document in
accordance with the terms hereof or thereof) or shall be declared null and void,
or  Administrative  Agent  shall  not  have or shall  cease to have a valid  and
perfected First Priority Lien in any Collateral purported to be covered thereby,
in each case for any reason  other than the failure of  Administrative  Agent or
any Lender to take any action within its control,  or (iii) any Loan Party shall
contest the validity or  enforceability  of any Loan Document in writing or deny
in writing that it has any further  liability,  including with respect to future
advances by Lenders, under any Loan Document to which it is a party; or

8.14 Failure to Consummate Acquisition.

     The Acquisition  shall not be consummated in accordance with this Agreement
and the  applicable  Related  Agreements  concurrently  with the  making  of the
initial  Loans,  or the  Acquisition  shall be unwound,  reversed  or  otherwise
rescinded in whole or in part for any reason; or

8.15 Amendment of Certain Documents of Company.

     Company  shall  agree to any  material  amendment  to,  or waive any of its
material  rights under,  or otherwise  change any material  terms of, any of the
Acquisition  Agreement or the Company Certificate of Designations,  in each case
as in effect on the Closing Date,  in a manner  adverse to Company or any of its
Subsidiaries  or to Lenders  without the prior  written  consent of  Syndication
Agent, Administrative Agent and Requisite Lenders.

                                      129

<PAGE>

THEN (i) upon the occurrence of any Event of Default described in subsection 8.6
or 8.7, each of (a) the unpaid  principal  amount of and accrued interest on the
Loans,  (b) an amount equal to the maximum  amount that may at any time be drawn
under all Letters of Credit  then  outstanding  (whether or not any  beneficiary
under any such Letter of Credit  shall have  presented,  or shall be entitled at
such time to present, the drafts or other documents or certificates  required to
draw  under  such  Letter  of  Credit),  and (c)  all  other  Obligations  shall
automatically become immediately due and payable,  without presentment,  demand,
protest or other  requirements  of any kind,  all of which are hereby  expressly
waived by  Company,  and the  obligation  of each  Lender to make any Loan,  the
obligation of  Administrative  Agent to issue any Letter of Credit and the right
of any Lender to issue any Letter of Credit hereunder shall thereupon terminate,
and (ii) upon the occurrence and during the  continuation  of any other Event of
Default,  Administrative  Agent  shall,  upon the  written  request  or with the
written consent of Requisite Lenders, by written notice to Company,  declare all
or any portion of the amounts  described in clauses (a) through (c) above to be,
and the same  shall  forthwith  become,  immediately  due and  payable,  and the
obligation of each Lender to make any Loan,  the  obligation  of  Administrative
Agent to issue any  Letter of  Credit  and the right of any  Lender to issue any
Letter  of  Credit  hereunder  shall  thereupon  terminate;  provided  that  the
foregoing  shall  not  affect  in any  way  the  obligations  of  Lenders  under
subsection  3.3C(i) or the obligations of Lenders to purchase  participations in
any unpaid Swing Line Loans as provided in subsection 2.1A(iv).

     Notwithstanding anything contained in the second preceding paragraph, if at
any time within 60 days after an  acceleration  of the Loans  pursuant to clause
(ii) of such  paragraph  Company  shall  pay all  arrears  of  interest  and all
payments on account of principal which shall have become due otherwise than as a
result of such  acceleration  (with  interest  on  principal  and, to the extent
permitted by law, on overdue interest, at the rates specified in this Agreement)
and  all  Events  of  Default  and  Potential  Events  of  Default  (other  than
non-payment of the principal of and accrued  interest on the Loans, in each case
which is due and payable solely by virtue of acceleration)  shall be remedied or
waived pursuant to subsection 10.6, then Requisite Lenders, by written notice to
Company,  may at their  option  rescind  and  annul  such  acceleration  and its
consequences;  but such action shall not affect any subsequent  Event of Default
or  Potential  Event of  Default  or impair any right  consequent  thereon.  The
provisions of this  paragraph are intended  merely to bind Lenders to a decision
which may be made at the  election of  Requisite  Lenders and are not  intended,
directly or indirectly, to benefit Company, and such provisions shall not at any
time be construed so as to grant Company the right to require Lenders to rescind
or annul any  acceleration  hereunder  or to  preclude  Administrative  Agent or
Lenders from  exercising  any of the rights or remedies  available to them under
any of the Loan  Documents,  even if the  conditions set forth in this paragraph
are met.

     Notwithstanding  anything herein to the contrary, upon the occurrence of an
Event of Default, Company hereby acknowledges that it shall then be indebted to,
and  shall be  obligated  to pay to  Administrative  Agent,  as a  separate  and
absolute obligation,  (i) all unpaid principal amount of and accrued interest on
the Loans,  (ii) an amount  equal to the maximum  amount that may at any time be
drawn under all Letters of Credit then outstanding,  (iii) all other Obligations
and (iv) all amounts  owing under or in respect of any Lender  Hedge  Agreement.
Administrative  Agent shall  distribute  such proceeds among the Lenders and the
Lender Counterparties in accordance with the provisions of subsection 2.4D.



                                      130
<PAGE>

     Upon the  payment in full of all  Obligations,  Administrative  Agent shall
exercise, or refrain from exercising,  any remedies provided for in this Section
8 with respect to the Guaranties and Collateral Documents in accordance with the
instructions of the holders of a majority of the aggregate  notional amount (or,
with  respect  to any  Lender  Hedge  Agreement  that  has  been  terminated  in
accordance  with its  terms,  the  amount  then due and  payable  (exclusive  of
expenses and similar payments but including any early termination  payments then
due) under such Lender Hedge  Agreement)  under all Lender Hedge Agreements with
all Lenders.

                                   SECTION 9.
                                     AGENTS

9.1  Appointment.

     A.  Appointment  of  Agents.  GSCP is hereby  appointed  Syndication  Agent
hereunder,  and each Lender hereby  authorizes  Syndication  Agent to act as its
agent  in  accordance  with the  terms  of this  Agreement  and the  other  Loan
Documents. CIBC is hereby appointed Administrative Agent hereunder and under the
other Loan Documents and each Lender hereby authorizes  Administrative  Agent to
act as its agent in  accordance  with the terms of this  Agreement and the other
Loan Documents. Each Lender Counterparty hereby appoints Administrative Agent to
act as its agent  under the  Guaranties  and  Collateral  Documents.  Each Agent
hereby agrees to act upon the express conditions contained in this Agreement and
the other Loan  Documents,  as applicable.  The provisions of this Section 9 are
solely for the benefit of Agents and Lenders and Company shall have no rights as
a third party  beneficiary of any of the provisions  thereof.  In performing its
functions  and duties  under this  Agreement,  each Agent shall act solely as an
agent of Lenders and does not assume and shall not be deemed to have assumed any
obligation towards or relationship of agency or trust with or for Company or any
of its  Subsidiaries.  Syndication  Agent,  without  consent of or notice to any
party hereto,  may assign any and all of its rights or obligations  hereunder to
any of its Affiliates.

     B. Appointment of Supplemental Collateral Agents. It is the purpose of this
Agreement and the other Loan  Documents  that there shall be no violation of any
law of any jurisdiction denying or restricting the right of banking corporations
or associations to transact  business as agent or trustee in such  jurisdiction.
It is recognized  that in case of litigation  under this Agreement or any of the
other Loan Documents, and in particular in case of the enforcement of any of the
Loan  Documents,  or in case  Administrative  Agent  deems that by reason of any
present or future law of any jurisdiction it may not exercise any of the rights,
powers or remedies  granted herein or in any of the other Loan Documents or take
any other action which may be desirable or necessary in connection therewith, it
may be necessary that Administrative  Agent appoint an additional  individual or
institution as a separate  trustee,  co-trustee,  collateral agent or collateral
co-agent (any such additional individual or institution being referred to herein
individually  as  a  "Supplemental   Collateral   Agent"  and   collectively  as
"Supplemental Collateral Agents").

     In the event that Administrative  Agent appoints a Supplemental  Collateral
Agent with respect to any Collateral, (i) each and every right, power, privilege
or duty  expressed  or  intended  by this  Agreement  or any of the  other  Loan
Documents to be exercised  by or vested in or conveyed to  Administrative  Agent
with  respect  to such  Collateral  shall  be


                                      131
<PAGE>

exercisable by and vest in such Supplemental Collateral Agent to the extent, and
only to the extent,  necessary to enable such  Supplemental  Collateral Agent to
exercise such rights,  powers and privileges with respect to such Collateral and
to perform such duties with respect to such  Collateral,  and every covenant and
obligation  contained  in the Loan  Documents  and  necessary to the exercise or
performance  thereof by such  Supplemental  Collateral Agent shall run to and be
enforceable  by  either  Administrative  Agent or such  Supplemental  Collateral
Agent,  and (ii) the  provisions of this Section 9 and of  subsections  10.2 and
10.3 that  refer to  Administrative  Agent  shall  inure to the  benefit of such
Supplemental Collateral Agent and all references therein to Administrative Agent
shall  be  deemed  to  be  references  to   Administrative   Agent  and/or  such
Supplemental Collateral Agent, as the context may require.

     Should any  instrument  in writing  from Company or any other Loan Party be
required by any  Supplemental  Collateral  Agent so appointed by  Administrative
Agent for more fully and certainly  vesting in and  confirming to him or it such
rights,  powers,  privileges and duties, Company shall, or shall cause such Loan
Party to, execute, acknowledge and deliver any and all such instruments promptly
upon request by Administrative Agent. In case any Supplemental Collateral Agent,
or a successor  thereto,  shall die,  become  incapable of acting,  resign or be
removed,  all the rights,  powers,  privileges  and duties of such  Supplemental
Collateral Agent, to the extent permitted by law, shall vest in and be exercised
by Administrative  Agent until the appointment of a new Supplemental  Collateral
Agent.

9.2  Powers and Duties; General Immunity.

     A. Powers; Duties Specified.  Each Lender irrevocably authorizes each Agent
to take such action on such Lender's behalf and to exercise such powers,  rights
and remedies  hereunder and under the other Loan  Documents as are  specifically
delegated  or granted to such Agent by the terms  hereof and  thereof,  together
with such powers, rights and remedies as are reasonably incidental thereto. Each
Agent  shall have only  those  duties and  responsibilities  that are  expressly
specified  in this  Agreement  and the  other  Loan  Documents.  Each  Agent may
exercise such powers,  rights and remedies and perform such duties by or through
its agents or employees. No Agent shall have, by reason of this Agreement or any
of the other Loan Documents,  a fiduciary relationship in respect of any Lender;
and nothing in this Agreement or any of the other Loan  Documents,  expressed or
implied, is intended to or shall be so construed as to impose upon any Agent any
obligations  in respect  of this  Agreement  or any of the other Loan  Documents
except as expressly set forth herein or therein.

     B. No Responsibility for Certain Matters.  No Agent shall be responsible to
any   Lender   for  the   execution,   effectiveness,   genuineness,   validity,
enforceability,  collectibility  or  sufficiency  of this Agreement or any other
Loan  Document or for any  representations,  warranties,  recitals or statements
made  herein or therein  or made in any  written  or oral  statements  or in any
financial or other statements, instruments, reports or certificates or any other
documents  furnished  or made by any  Agent to  Lenders  or by or on  behalf  of
Company to any Agent or any Lender in connection with the Loan Documents and the
transactions  contemplated  thereby or for the  financial  condition or business
affairs  of  Company  or  any  other  Person  liable  for  the  payment  of  any
Obligations,  nor shall any Agent be required to  ascertain or inquire as to the
performance or observance of any of the terms, conditions, provisions, covenants
or  agreements  contained  in any of the Loan  Documents or as to the use of the
proceeds of the Loans or the use of the Letters of Credit or as to the existence
or possible  existence  of any Event of Default or  Potential  Event of Default.
Anything   contained  in  this   Agreement  to  the  contrary   notwithstanding,
Administrative  Agent shall not have any liability arising from confirmations of
the amount of  outstanding  Loans or the Letter of Credit


                                      132
<PAGE>

Usage or the component amounts thereof.

     C.  Exculpatory  Provisions.  None of the Agents nor any of their officers,
partners,  directors,  respective employees or agents shall be liable to Lenders
for any action taken or omitted by any Agent under or in connection  with any of
the Loan Documents  except to the extent caused by such Agent's gross negligence
or willful  misconduct.  Each Agent shall be entitled to refrain from any act or
the taking of any action (including the failure to take an action) in connection
with this  Agreement or any of the other Loan  Documents or from the exercise of
any power,  discretion or authority vested in it hereunder or thereunder  unless
and until such Agent shall have received  instructions  in respect  thereof from
Requisite  Lenders  (or such  other  Lenders  as may be  required  to give  such
instructions  under subsection 10.6) and, upon receipt of such instructions from
Requisite Lenders (or such other Lenders,  as the case may be), such Agent shall
be entitled to act or (where so instructed)  refrain from acting, or to exercise
such power,  discretion or  authority,  in  accordance  with such  instructions.
Without  prejudice to the generality of the  foregoing,  (i) each Agent shall be
entitled  to  rely,  and  shall  be  fully   protected  in  relying,   upon  any
communication,  instrument or document  believed by it to be genuine and correct
and to have been signed or sent by the proper  person or  persons,  and shall be
entitled to rely and shall be protected in relying on opinions and  judgments of
attorneys (who may be attorneys for Company and its Subsidiaries),  accountants,
experts and other professional advisors selected by it; and (ii) no Lender shall
have any right of action whatsoever  against any Agent as a result of such Agent
acting or (where so instructed)  refraining  from acting under this Agreement or
any of the other Loan Documents in accordance with the instructions of Requisite
Lenders  (or such other  Lenders as may be  required  to give such  instructions
under subsection 10.6).

     D. Agent  Entitled to Act as Lender.  The agency hereby created shall in no
way  impair or affect  any of the  rights and powers of, or impose any duties or
obligations  upon, any Agent in its individual  capacity as a Lender  hereunder.
With respect to its  participation in the Loans and the Letters of Credit,  each
Agent shall have the same rights and powers  hereunder  as any other  Lender and
may exercise the same as though it were not  performing the duties and functions
delegated  to it  hereunder,  and the term  "Lender" or "Lenders" or any similar
term shall, unless the context clearly otherwise  indicates,  include each Agent
in its individual  capacity.  Any Agent and its  Affiliates may accept  deposits
from,  lend  money  to and  generally  engage  in any  kind of  banking,  trust,
financial advisory or other business with Company or any of its Affiliates as if
it were not  performing  the duties  specified  herein,  and may accept fees and
other  consideration from Company for services in connection with this Agreement
and otherwise without having to account for the same to Lenders.

9.3  Representations   and  Warranties;   No  Responsibility  For  Appraisal  of
     Creditworthiness.

     Each Lender  represents  and warrants that it has made its own  independent
investigation  of the  financial  condition  and  affairs  of  Company  and  its
Subsidiaries  in  connection  with the making of the Loans and the  issuance  of
Letters of Credit  hereunder and that it has made and shall continue to make its
own appraisal of the creditworthiness of Company and its Subsidiaries.  No Agent
shall  have any duty or  responsibility,  either  initially  or on a  continuing
basis, to make any such investigation or any such appraisal on behalf of Lenders
or to provide  any  Lender  with any credit or other  information  with  respect
thereto, whether coming into its possession before the making of the Loans or at
any time or times  thereafter,  and no Agent  shall not have any  responsibility
with respect to the accuracy of or the completeness of any information  provided
to Lenders.



                                      133
<PAGE>

9.4  Right to Indemnity.

     Each  Lender,  in  proportion  to its Pro Rata Share,  severally  agrees to
indemnify  each  Agent,  to the  extent  that  such  Agent  shall  not have been
reimbursed  by Company,  for and against any and all  liabilities,  obligations,
losses,  damages,   penalties,   actions,   judgments,  suits,  costs,  expenses
(including  counsel  fees and  disbursements)  or  disbursements  of any kind or
nature  whatsoever which may be imposed on, incurred by or asserted against such
Agent in exercising  its powers,  rights and remedies or  performing  its duties
hereunder or under the other Loan Documents or otherwise in its capacity as such
Agent in any way relating to or arising out of this  Agreement or the other Loan
Documents;  provided  that no Lender  shall be liable  for any  portion  of such
liabilities, obligations, losses, damages, penalties, actions, judgments, suits,
costs, expenses or disbursements resulting from such Agent's gross negligence or
willful  misconduct.  If any  indemnity  furnished  to any Agent for any purpose
shall, in the opinion of such Agent, be  insufficient or become  impaired,  such
Agent may call for additional  indemnity and cease,  or not commence,  to do the
acts  indemnified  against until such  additional  indemnity is furnished.  Upon
payment in full of the Obligations,  Administrative  Agent may request indemnity
from the Lender  Counterparties and cease, or not commence, to do any acts under
any Guaranty or Collateral Document until such indemnity is furnished.

9.5  Successor Agent.

     A. Successor Agent An Agent may resign at any time by giving 30 days' prior
written notice thereof to Lenders and Company,  and Administrative  Agent may be
removed  at any time  with or  without  cause  by an  instrument  or  concurrent
instruments in writing delivered to Company and Administrative  Agent and signed
by Requisite  Lenders.  Upon any such notice of resignation or any such removal,
Requisite  Lenders  shall have the right,  upon five  Business  Days'  notice to
Company, to appoint a successor Administrative Agent. Upon the acceptance of any
appointment  as  Administrative  Agent  hereunder by a successor  Administrative
Agent, that successor Administrative Agent shall thereupon succeed to and become
vested with all the rights,  powers,  privileges  and duties of the  retiring or
removed  Administrative  Agent and the retiring or removed  Administrative Agent
shall be discharged  from its duties and  obligations  under this  Agreement and
shall  promptly (i) transfer to such  successor  Administrative  Agent all sums,
securities  and other items of Collateral  held under any  Collateral  Document,
together  with all records  and other  documents  necessary  or  appropriate  in
connection  with the  performance of the duties of the successor  Administrative
Agent  under any  Collateral  Document,  and (ii)  execute  and  deliver to such
successor Administrative Agent such amendments to financing statements, and take
such other actions,  as may be necessary or  appropriate in connection  with the
assignment  to such  successor  Administrative  Agent of the security  interests
created  thereunder,  whereupon  such retiring or removed  Administrative  Agent
shall be  discharged  from its  duties  and  obligations  under  the  Collateral
Documents.  After any retiring or removed  Administrative Agent's resignation or
removal  hereunder as  Administrative  Agent,  the  provisions of this Section 9
shall inure to its benefit as to any actions  taken or omitted to be taken by it
while it was Administrative Agent under this Agreement.

     B.   Successor   Swing  Line  Lender.   Any   resignation   or  removal  of
Administrative  Agent  pursuant to  subsection  9.5A shall also  constitute  the
resignation  or removal of CIBC or its  successor as Swing Line Lender,  and any
successor Administrative Agent appointed pursuant to subsection 9.5A shall, upon
its acceptance of such  appointment,


                                      134
<PAGE>

become the successor Swing Line Lender for all purposes hereunder. In such event
(i) Company shall prepay any  outstanding  Swing Line Loans made by the retiring
or removed  Administrative Agent in its capacity as Swing Line Lender, (ii) upon
such  prepayment,  the retiring or removed  Administrative  Agent and Swing Line
Lender  shall  surrender  any  Swing  Line  Note  held  by  it  to  Company  for
cancellation,  and (iii) if so requested by the successor  Administrative  Agent
and Swing Line Lender in accordance with subsection 2.1E,  Company shall issue a
new Swing Line Note to the successor  Administrative Agent and Swing Line Lender
substantially  in the form of Exhibit  VI-B  annexed  hereto,  in the  principal
amount  of the  Swing  Line  Loan  Commitment  then in  effect  and  with  other
appropriate insertions.

9.6  Collateral Documents and Guaranties.

     Each Lender hereby further  authorizes  Administrative  Agent, on behalf of
and for the  benefit of  Lenders,  to enter  into each  Collateral  Document  as
secured  party and to be the agent for and  representative  of Lenders under the
Guaranties,  and each Lender agrees to be bound by the terms of each  Collateral
Document and each  Guaranty;  provided that  Administrative  Agent shall not (i)
enter into or consent to any material  amendment,  modification,  termination or
waiver of any provision contained in any Collateral Document or Guaranty or (ii)
release any  Collateral  (except as  otherwise  expressly  permitted or required
pursuant to the terms of this Agreement or the applicable  Collateral Document),
in each case  without  the prior  consent of  Requisite  Lenders  (or such other
Lenders as may be required to give such  instructions  under  subsection  10.6);
provided   further,   however,   that,   without   further  written  consent  or
authorization  from Lenders,  Administrative  Agent may execute any documents or
instruments necessary to (a) release any Lien encumbering any item of Collateral
that is the subject of a sale or other  disposition of assets  permitted by this
Agreement  or to which  Requisite  Lenders  (or  such  other  Lenders  as may be
required  to give  such  instructions  under  subsection  10.6)  have  otherwise
consented or (b) release any  Subsidiary  Guarantor  from any Guaranty if all of
the capital stock of such Subsidiary Guarantor is sold to any Person (other than
an  Affiliate  of  Company)  pursuant to a sale or other  disposition  permitted
hereunder  or to which  Requisite  Lenders  (or  such  other  Lenders  as may be
required  to give  such  instructions  under  subsection  10.6)  have  otherwise
consented.  Anything  contained  in any of the Loan  Documents  to the  contrary
notwithstanding, Company, Administrative Agent and each Lender hereby agree that
(X) no Lender  shall  have any right  individually  to  realize  upon any of the
Collateral  under any Collateral  Document or to enforce any Guaranty,  it being
understood and agreed that all powers,  rights and remedies under the Collateral
Documents and the Guaranties may be exercised solely by Administrative Agent for
the  benefit of Lenders in  accordance  with the terms  thereof,  and (Y) in the
event of a foreclosure by Administrative Agent on any of the Collateral pursuant
to a public or  private  sale,  Administrative  Agent or any  Lender  may be the
purchaser of any or all of such  Collateral at any such sale and  Administrative
Agent, as agent for and representative of Lenders (but not any Lender or Lenders
in its or their respective  individual capacities unless Requisite Lenders shall
otherwise  agree in writing)  shall be entitled,  for the purpose of bidding and
making settlement or payment of the purchase price for all or any portion of the
Collateral sold at any such public sale, to use and apply any of the Obligations
as a credit on  account  of the  purchase  price for any  collateral  payable by
Administrative Agent at such sale.

     Each Lender hereby further  authorizes  Administrative  Agent, on behalf of
and for the benefit of Lenders and in connection with the CIBC Letter of Credit,
to enter into that certain Subordination and Postponement  Agreement dated as of
the Closing Date by and among Administrative  Agent, GSCP, as a Lender,  Company
and CIBC.



                                      135

<PAGE>

                                   SECTION 10.
                                  MISCELLANEOUS

10.1 Assignments and Participations in Loans and Letters of Credit.

     A. General.  Subject to subsection  10.1B, each Lender shall have the right
at any time to (i) sell,  assign or transfer to any Eligible  Assignee,  or (ii)
sell  participations to any Person in, all or any part of its Commitments or any
Loan or Loans made by it or its Letters of Credit or  participations  therein or
any other interest herein or in any other  Obligations owed to it; provided that
no such sale,  assignment,  transfer or participation shall, without the consent
of Company, require Company to file a registration statement with the Securities
and Exchange Commission or apply to qualify such sale,  assignment,  transfer or
participation under the securities laws of any state; provided,  further that no
such  sale,  assignment  or  transfer  described  in clause  (i) above  shall be
effective  unless  and  until  an  Assignment  Agreement  effecting  such  sale,
assignment  or transfer  shall have been  accepted by  Administrative  Agent and
recorded in the Register as provided in subsection 10.1B(ii);  provided, further
that no such sale, assignment, transfer or participation of any Letter of Credit
or any  participation  therein may be made separately  from a sale,  assignment,
transfer or  participation  of a  corresponding  interest in the Revolving  Loan
Commitment  and  the  Revolving  Loans  of  the  Lender   effecting  such  sale,
assignment,  transfer or  participation;  and provided,  further that,  anything
contained herein to the contrary notwithstanding, the Swing Line Loan Commitment
and the Swing  Line  Loans of Swing Line  Lender  may not be sold,  assigned  or
transferred  as  described  in  clause  (i)  above to any  Person  other  than a
successor  Administrative Agent and Swing Line Lender to the extent contemplated
by subsection  9.5.  Except as otherwise  provided in this  subsection  10.1, no
Lender  shall,  as between  Company and such  Lender,  be relieved of any of its
obligations hereunder as a result of any sale, assignment or transfer of, or any
granting of participations  in, all or any part of its Commitments or the Loans,
the Letters of Credit or participations  therein,  or the other Obligations owed
to such Lender. In the case of a sale, assignment or transfer by a Lender of all
or any part of its Commitments or any Loan or Loans made by it or its Letters of
Credit or  participations  therein or any other interest  herein or in any other
Obligation owed to such Lender to any Person as provided in subsection  10.1A or
10.1B,  such Person shall be entitled to receive no greater  amount  pursuant to
subsection 2.7, on a cumulative  basis,  than the Lender that sold,  assigned or
transferred such Commitments, Loan or Loans, Letters of Credit or participations
therein,  or such other interest herein or in any other such Obligations owed to
such Person.


                                      136
<PAGE>

     B. Assignments.



                                      137
<PAGE>

          (i) Amounts and Terms of Assignments. Each Commitment, Loan, Letter of
     Credit or participation therein, or other Obligation may (a) be assigned in
     any amount to another Lender, or to an Affiliate of the assigning Lender or
     another  Lender,  with the giving of notice to Company and with the consent
     of Administrative  Agent (which consent shall not be unreasonably  withheld
     or  delayed) or (b) be  assigned  in an  aggregate  amount of not less than
     $5,000,000 (or such lesser amount as shall  constitute the aggregate amount
     of the Commitments,  Loans,  Letters of Credit and participations  therein,
     and other  Obligations  of the  assigning  Lender)  to any  other  Eligible
     Assignee  with the  giving of notice to  Company  and with the  consent  of
     Administrative  Agent (which consent shall not be unreasonably  withheld or
     delayed);  provided,  however that  assignments by GSCP in accordance  with
     either  clause  (a) or (b)  above  may  be  made  without  the  consent  of
     Administrative   Agent,   upon  the  giving  of  notice  to   Company   and
     Administrative  Agent.  To the extent of any such  assignment in accordance
     with either clause (a) or (b) above, the assigning Lender shall be relieved
     of its  obligations  with  respect to its  Commitments,  Loans,  Letters of
     Credit or  participations  therein,  or other  Obligations  or the  portion
     thereof so assigned;  provided  however,  that any such obligation shall be
     and  remain  the same  obligation  of  Company.  The  parties  to each such
     assignment  shall  execute and  deliver to  Administrative  Agent,  for its
     acceptance and recording in the Register, an Assignment Agreement, together
     with a processing and  recordation fee of $1,000 in the case of assignments
     pursuant to clause (a) above and  assignments by GSCP or CIBC and $2,500 in
     the  case  of  all  other  assignments.  Upon  such  execution,   delivery,
     acceptance and recordation,  from and after the effective date specified in
     such Assignment  Agreement,  (y) the assignee  thereunder  shall be a party
     hereto and, to the extent that rights and  obligations  hereunder have been
     assigned to it pursuant to such Assignment Agreement, shall have the rights
     and  obligations  of a  Lender  hereunder  and  (z)  the  assigning  Lender
     thereunder shall, to the extent that rights and obligations  hereunder have
     been assigned by it pursuant to such Assignment  Agreement,  relinquish its
     rights  (other  than any  rights  which  survive  the  termination  of this
     Agreement  under  subsection  10.9B) and be released  from its  obligations
     under this Agreement (and, in the case of an Assignment  Agreement covering
     all  or  the  remaining  portion  of  an  assigning   Lender's  rights  and
     obligations  under this  Agreement,  such Lender  shall cease to be a party
     hereto;  provided that,  anything contained in any of the Loan Documents to
     the  contrary  notwithstanding,  if such Lender is the Issuing  Lender with
     respect to any outstanding  Letters of Credit such Lender shall continue to
     have all rights and  obligations  of an Issuing Lender with respect to such
     Letters of Credit until the  cancellation  or expiration of such Letters of
     Credit  and  the  reimbursement  of  any  amounts  drawn  thereunder).  The
     Commitments  hereunder  shall be modified to reflect the Commitment of such
     assignee and any remaining  Commitment of such assigning Lender and, if any
     such  assignment  occurs  after the  issuance of any Notes  hereunder,  the
     assigning  Lender shall,  upon the  effectiveness  of such assignment or as
     promptly thereafter as practicable, surrender its applicable Notes, if any,
     to Administrative Agent for cancellation, and thereupon new Notes shall, if
     so requested by the assignee and/or the assigning Lender in accordance with
     subsection 2.1E, be issued to the assignee and/or to the assigning  Lender,
     substantially  in the form of Exhibit  IV,  Exhibit V or Exhibit VI annexed
     hereto, as the case may be, with appropriate insertions, to reflect the new
     Commitments and/or outstanding  Tranche A Term Loans and/or AXELs Series B,
     as the case may be, of the assignee and/or the assigning Lender.

          (ii) Acceptance by Administrative Agent; Recordation in Register. Upon
     its


                                      138
<PAGE>

     receipt of an Assignment  Agreement  executed by an assigning Lender and an
     assignee  representing that it is an Eligible  Assignee,  together with the
     processing and recordation  fee referred to in subsection  10.1B(i) and any
     forms, certificates or other evidence with respect to United States federal
     income tax  withholding  matters  that such  assignee  may be  required  to
     deliver  to  Administrative  Agent  pursuant  to  subsection  2.7B(iii)(a),
     Administrative  Agent shall, if  Administrative  Agent has consented to the
     assignment  evidenced  thereby  to the  extent  such  consent  is  required
     pursuant to subsection  10.1B(i)),  (a) accept such Assignment Agreement by
     executing a counterpart thereof as provided therein (which acceptance shall
     evidence any required consent of Administrative  Agent to such assignment),
     (b) record the information contained therein in the Register,  and (c) give
     prompt notice  thereof to Company.  Administrative  Agent shall  maintain a
     copy  of each  Assignment  Agreement  delivered  to and  accepted  by it as
     provided in this subsection 10.1B(ii).

     C. Participations. The holder of any participation, other than an Affiliate
of the Lender granting such participation, shall not be entitled to require such
Lender  to take or omit to take any  action  hereunder  except  action  directly
affecting  (i) the extension of the  scheduled  final  maturity date of any Loan
allocated to such  participation  or (ii) a reduction of the principal amount of
or the rate of interest payable on any Loan allocated to such participation, and
all amounts  payable by Company  hereunder  (including  amounts  payable to such
Lender pursuant to subsections 2.6D, 2.7 and 3.6) shall be determined as if such
Lender  had  not  sold  such  participation.  Company  and  each  Lender  hereby
acknowledge  and agree that,  solely for purposes of subsections  10.4 and 10.5,
(a) any  participation  will give rise to a direct  obligation of Company to the
participant and (b) the participant shall be considered to be a "Lender".

     D. Assignments to Federal Reserve Banks. In addition to the assignments and
participations permitted under the foregoing provisions of this subsection 10.1,
any Lender may  assign  and  pledge all or any  portion of its Loans,  the other
Obligations  owed to such Lender,  and its Notes to any Federal  Reserve Bank as
collateral  security  pursuant to  Regulation A of the Board of Governors of the
Federal Reserve System and any operating circular issued by such Federal Reserve
Bank;  provided that (i) no Lender shall, as between Company and such Lender, be
relieved of any of its obligations  hereunder as a result of any such assignment
and pledge and (ii) in no event shall such Federal Reserve Bank be considered to
be a "Lender" or be entitled to require the assigning  Lender to take or omit to
take any action hereunder.

     E. Information.  Each Lender may furnish any information concerning Company
and its  Subsidiaries  in the  possession  of that  Lender  from time to time to
assignees and participants  (including  prospective assignees and participants),
subject to subsection 10.19.

     F.  Representations  of Lenders.  Each Lender listed on the signature pages
hereof  hereby  represents  and  warrants  (i) that it is an  Eligible  Assignee
described in clause (A) of the definition  thereof;  (ii) that it has experience
and  expertise in the making of loans such as the Loans;  and (iii) that it will
make its Loans for its own account in the  ordinary  course of its  business and
without  a view  to  distribution  of  such  Loans  within  the  meaning  of the
Securities  Act or the Exchange Act or other federal  securities  laws (it being
understood  that,  subject  to the  provisions  of  this  subsection  10.1,  the
disposition  of such Loans or any  interests  therein  shall at all times remain
within its exclusive control).  Each Lender that becomes a party hereto pursuant
to an Assignment Agreement shall be deemed to agree that the representations and
warranties of such Lender contained in Section 2(c) of such Assignment Agreement
are


                                      139
<PAGE>

incorporated herein by this reference.

10.2 Expenses.

     Whether or not the transactions  contemplated  hereby shall be consummated,
Company  agrees to pay  promptly  (i) all the  actual and  reasonable  costs and
expenses of  preparation  of the Loan  Documents and any  consents,  amendments,
waivers or other  modifications  thereto;  (ii) all the costs of furnishing  all
opinions by counsel for Company  (including any opinions requested by Lenders as
to any legal matters  arising  hereunder)  and of Company's  performance  of and
compliance  with all  agreements  and  conditions on its part to be performed or
complied with under this Agreement and the other Loan  Documents  including with
respect to  confirming  compliance  with  environmental,  insurance and solvency
requirements;  (iii) the reasonable fees,  expenses and disbursements of counsel
to Syndication  Agent and counsel to Administrative  Agent (including  allocated
costs of internal  counsel) in  connection  with the  negotiation,  preparation,
execution and administration of the Loan Documents and any consents, amendments,
waivers  or other  modifications  thereto  and any other  documents  or  matters
requested  by  Company;  (iv) all the actual  costs and  reasonable  expenses of
creating  and  perfecting  Liens in favor of  Administrative  Agent on behalf of
Lenders  pursuant to any  Collateral  Document,  including  filing and recording
fees,  expenses  and taxes,  stamp or  documentary  taxes,  search  fees,  title
insurance  premiums,  and reasonable fees, expenses and disbursements of counsel
to  Syndication  Agent  and  counsel  to  Administrative  Agent  and of  counsel
providing any opinions that Syndication Agent, Administrative Agent or Requisite
Lenders may request in respect of the Collateral  Documents or the Liens created
pursuant thereto;  (v) all the actual costs and reasonable  expenses  (including
the reasonable fees, expenses and disbursements of any auditors,  accountants or
appraisers  and any  environmental  or other  consultants,  advisors  and agents
employed or  retained by  Syndication  Agent or  Administrative  Agent and their
respective counsel) of obtaining and reviewing any appraisals provided for under
subsection  4.1J or 6.9C and any  environmental  audits or reports  provided for
under subsection 4.1L or 6.9B(viii);  (vi) the custody or preservation of any of
the  Collateral;  (vii) all  other  actual  and  reasonable  costs and  expenses
incurred by Syndication  Agent or  Administrative  Agent in connection  with the
syndication of the Commitments and the negotiation, preparation and execution of
the Loan Documents and any consents,  amendments, waivers or other modifications
thereto  and  the  transactions  contemplated  thereby;  and  (viii)  after  the
occurrence of an Event of Default, all costs and expenses,  including reasonable
attorneys'  fees (including  allocated  costs of internal  counsel) and costs of
settlement,  incurred by Syndication Agent,  Administrative Agent and Lenders in
enforcing any  Obligations  of or in  collecting  any payments due from any Loan
Party  hereunder  or under the other Loan  Documents  by reason of such Event of
Default  (including in connection  with the sale of,  collection  from, or other
realization upon any of the Collateral or the enforcement of any Guaranty) or in
connection  with any  refinancing or  restructuring  of the credit  arrangements
provided  under this  Agreement in the nature of a "work-out" or pursuant to any
insolvency or bankruptcy proceedings.



                                      140

<PAGE>

10.3 Indemnity.

     In addition to the payment of expenses pursuant to subsection 10.2, whether
or not the transactions contemplated hereby shall be consummated, Company agrees
to defend (subject to  Indemnitees'  selection of counsel),  indemnify,  pay and
hold  harmless  Agents  and  Lenders,  and  the  officers,  partners,  trustees,
directors,  employees, agents and affiliates of Agents and Lenders (collectively
called the "Indemnitees"),  from and against any and all Indemnified Liabilities
(as hereinafter defined); provided that Company shall not have any obligation to
any  Indemnitee  hereunder  with respect to any  Indemnified  Liabilities to the
extent such  Indemnified  Liabilities  arise solely from the gross negligence or
willful  misconduct of that  Indemnitee  as determined by a final  judgment of a
court of competent jurisdiction.

     As used herein, "Indemnified Liabilities" means, collectively,  any and all
liabilities,  obligations, losses, damages (including natural resource damages),
penalties,  actions,  judgments, suits, claims (including Environmental Claims),
costs  (including  the costs of any  investigation,  study,  sampling,  testing,
abatement,  cleanup, removal,  remediation or other response action necessary to
remove, remediate, clean up or abate any Hazardous Materials Activity), expenses
and  disbursements  of any kind or nature  whatsoever  (including the reasonable
fees and  disbursements  of  counsel  for  Indemnitees  in  connection  with any
investigative,  administrative or judicial proceeding commenced or threatened by
any Person, whether or not any such Indemnitee shall be designated as a party or
a potential party thereto,  and any fees or expenses  incurred by Indemnitees in
enforcing this indemnity), whether direct, indirect or consequential and whether
based on any federal,  state or foreign  laws,  statutes,  rules or  regulations
(including  securities and commercial laws,  statutes,  rules or regulations and
Environmental  Laws),  on  common  law or  equitable  cause  or on  contract  or
otherwise,  that may be imposed on,  incurred  by, or asserted  against any such
Indemnitee,  in any manner  relating to or arising out of (i) this  Agreement or
the  other  Loan  Documents  or  the  Related  Agreements  or  the  transactions
contemplated  hereby or thereby (including  Lenders' agreement to make the Loans
hereunder or the use or intended use of the proceeds  thereof or the issuance of
Letters of Credit  hereunder or the use or intended  use of any thereof,  or any
enforcement  of any of the Loan  Documents  (including  any sale of,  collection
from, or other  realization upon any of the Collateral or the enforcement of any
Guaranty),  (ii) the statements  contained in the commitment letter delivered by
any Lender to Company with respect thereto,  or (iii) any Environmental Claim or
any  Hazardous  Materials  Activity  relating  to or arising  from,  directly or
indirectly, any past or present activity, operation, land ownership, or practice
of Company or any of its Subsidiaries.

     To the extent  that the  undertakings  to defend,  indemnify,  pay and hold
harmless set forth in this subsection 10.3 may be  unenforceable  in whole or in
part  because  they are  violative of any law or public  policy,  Company  shall
contribute  the maximum  portion that it is  permitted to pay and satisfy  under
applicable law to the payment and  satisfaction of all  Indemnified  Liabilities
incurred by Indemnitees or any of them.



                                      141
<PAGE>

10.4 Set-Off; Security Interest in Deposit Accounts.

     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 of any Event of
Default each Lender is hereby  authorized by Company at any time or from time to
time,  without  notice to Company or to any other Person,  any such notice being
hereby expressly  waived, to set off and to appropriate and to apply any and all
deposits  (general or  special,  including,  but not  limited  to,  Indebtedness
evidenced by  certificates  of deposit,  whether  matured or unmatured,  but not
including trust  accounts) and any other  Indebtedness at any time held or owing
by that  Lender to or for the credit or the  account of Company  against  and on
account of the  obligations and liabilities of Company to that Lender under this
Agreement,  the Letters of Credit and participations  therein and the other Loan
Documents,  including,  but  not  limited  to,  all  claims  of  any  nature  or
description  arising out of or  connected  with this  Agreement,  the Letters of
Credit and  participations  therein or any other Loan Document,  irrespective of
whether or not (i) that Lender shall have made any demand  hereunder or (ii) the
principal  of or the  interest  on the Loans or any  amounts  in  respect of the
Letters of Credit or any other amounts due  hereunder  shall have become due and
payable pursuant to Section 8 and although said obligations and liabilities,  or
any of them,  may be contingent or unmatured.  Company  hereby further grants to
Syndication Agent,  Administrative  Agent and each Lender a security interest in
all deposits and accounts maintained with Administrative Agent or such Lender as
security for the Obligations.

10.5 Ratable Sharing.

     Lenders hereby agree among themselves that if any of them shall, whether by
voluntary  payment (other than a voluntary  prepayment of Loans made and applied
in accordance with the terms of this  Agreement),  by realization upon security,
through the exercise of any right of set-off or banker's  lien, by  counterclaim
or cross action or by the  enforcement  of any right under the Loan Documents or
otherwise,  or as adequate  protection of a deposit  treated as cash  collateral
under the Bankruptcy  Code,  receive payment or reduction of a proportion of the
aggregate amount of principal,  interest,  amounts payable in respect of Letters
of Credit, fees and other amounts then due and owing to that Lender hereunder or
under the other Loan Documents  (collectively,  the  "Aggregate  Amounts Due" to
such Lender) which is greater than the  proportion  received by any other Lender
in respect of the Aggregate  Amounts Due to such other  Lender,  then the Lender
receiving such proportionately  greater payment shall (i) notify  Administrative
Agent and each  other  Lender of the  receipt of such  payment  and (ii) apply a
portion of such payment to purchase  participations (which it shall be deemed to
have  purchased  from each  seller of a  participation  simultaneously  upon the
receipt by such seller of its portion of such payment) in the Aggregate  Amounts
Due to the other Lenders so that all such  recoveries  of Aggregate  Amounts Due
shall be shared by all Lenders in  proportion  to the  Aggregate  Amounts Due to
them;  provided  that if all or part of  such  proportionately  greater  payment
received by such purchasing Lender is thereafter recovered from such Lender upon
the bankruptcy or reorganization of Company or otherwise,  those purchases shall
be  rescinded  and the  purchase  prices paid for such  participations  shall be
returned to such purchasing  Lender ratably to the extent of such recovery,  but
without interest.  Company expressly  consents to the foregoing  arrangement and
agrees that any holder of a participation  so purchased may exercise any and all
rights of banker's  lien,  set-off or  counterclaim  with respect to any and all
monies owing by Company to that holder with respect  thereto as fully as if that
holder were owed the amount of the participation held by that holder.



                                      142

<PAGE>

10.6 Amendments and Waivers.

     A. No amendment,  modification,  termination  or waiver of any provision of
the Loan Documents,  or consent to any departure by Company therefrom,  shall in
any event be effective  without the written  concurrence  of Requisite  Lenders;
provided that no such amendment,  modification,  termination,  waiver or consent
shall, without the consent of each Lender (with Obligations directly affected in
the case of the following  clause (i)): (i) extend the scheduled  final maturity
of any Loan or Note, or waive,  reduce or postpone any  scheduled  repayment set
forth in subsection 2.4A, or extend the stated  expiration date of any Letter of
Credit beyond the Revolving Loan Commitment Termination Date, or reduce the rate
of interest on any Loan (other than any waiver of any  increase in the  interest
rate applicable to any Loan pursuant to subsection  2.2E) or any commitment fees
or letter of credit fees  payable  hereunder,  or extend the time for payment of
any such  interest or fees,  or reduce the  principal  amount of any Loan or any
reimbursement obligation in respect of any Letter of Credit, (ii) amend, modify,
terminate  or waive any  provision  of this  subsection  10.6,  (iii) reduce the
percentage  specified  in  the  definition  of  "Requisite  Lenders"  (it  being
understood that, with the consent of Requisite Lenders, additional extensions of
credit  pursuant  to this  Agreement  may be included  in the  determination  of
"Requisite  Lenders" on substantially  the same basis as the Tranche A Term Loan
Commitments,  the Tranche A Term Loans,  AXEL  Series B  Commitments,  the AXELs
Series B, the Revolving Loan Commitments and the Revolving Loans are included on
the Closing Date),  (iv) release all or  substantially  all of the Collateral or
all or substantially all the Subsidiaries from any Guaranty, except as expressly
provided in the Loan Documents,  or (v) consent to the assignment or transfer by
Company of any of its rights and  obligations  under this  Agreement;  provided,
further that no such  amendment,  modification,  termination or waiver shall (1)
increase the  Commitments  of any Lender over the amount thereof then in effect,
or extend the  duration  thereof,  without  the consent of such Lender (it being
understood that no amendment, modification or waiver of any condition precedent,
covenant,  Potential  Event of Default or Event of Default  shall  constitute an
increase or extension in the  Commitment of any Lender,  and that no increase in
the  available  portion of any  Commitment  of any Lender  shall  constitute  an
increase  in such  Commitment  of such  Lender);  (2)  amend the  definition  of
"Requisite Class Lenders" without the consent of Requisite Class Lenders of each
Class,  or alter the required  application  of any  repayments or prepayments as
between Classes pursuant to subsection 2.4B(iv) without the consent of Requisite
Class  Lenders of each Class  which is being  allocated  a lesser  repayment  or
prepayment as a result thereof  (although  Requisite Lenders may waive, in whole
or in part,  any  mandatory  prepayment so long as the  application,  as between
Classes, of any portion of such prepayment which is still required to be made is
not altered);  (3) amend,  modify,  terminate or waive any obligation of Lenders
relating to the purchase of  participations  in Letters of Credit as provided in
subsection 3.1C without the written  concurrence of Administrative  Agent and of
each Issuing  Lender which has a Letter of Credit then  outstanding or which has
not been reimbursed for a drawing under a Letter of Credit issued it; (4) amend,
modify, terminate or waive any provision of Section 9 as the same applies to any
Agent,  or any other  provision  of this  Agreement  as the same  applies to the
rights or  obligations  of any Agent,  in each case  without the consent of such
Agent;  or (5) amend,  modify,  terminate or waive any  provision of  subsection
2.1A(iv) or any other  provision  of this  Agreement  relating to the Swing Line
Loan  Commitment  or the Swing Line Loans,  in each case  without the consent of
Swing Line Lender.

     B.  Administrative  Agent may,  but shall have no  obligation  to, with the
concurrence  of  any  Lender,  execute  amendments,  modifications,  waivers  or
consents on


                                      143
<PAGE>

behalf of that  Lender.  Any waiver or consent  shall be  effective  only in the
specific instance and for the specific purpose for which it was given. No notice
to or  demand on  Company  in any case  shall  entitle  Company  to any other or
further  notice or demand in  similar  or other  circumstances.  Any  amendment,
modification,  termination,  waiver or consent  effected in accordance with this
subsection 10.6 shall be binding upon each Lender at the time outstanding,  each
future Lender and, if signed by Company, on Company.

10.7 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 would otherwise be within
the limitations of, another  covenant shall not avoid the occurrence of an Event
of Default or  Potential  Event of Default if such action is taken or  condition
exists.

10.8 Notices.

     Unless  otherwise   specifically  provided  herein,  any  notice  or  other
communication  herein  required or permitted to be given shall be in writing and
may be personally served, telexed or sent by telefacsimile or United States mail
or courier  service  and shall be deemed to have been given  when  delivered  in
person or by courier  service,  upon receipt of telefacsimile or telex, or three
Business Days after depositing it in the United States mail with postage prepaid
and  properly   addressed;   provided  that  notices  to  Syndication  Agent  or
Administrative  Agent shall not be effective  until  received.  For the purposes
hereof,  the  address  of each  party  hereto  shall be as set forth  under such
party's  name  on  the  signature   pages  hereof  or  (i)  as  to  Company  and
Administrative  Agent,  such other address as shall be designated by such Person
in a written  notice  delivered to the other parties  hereto and (ii) as to each
other  party,  such  other  address  as shall be  designated  by such party in a
written notice delivered to Administrative Agent.

10.9 Survival of Representations, Warranties and Agreements.

     A. All representations, warranties and agreements made herein shall survive
the execution and delivery of this Agreement and the making of the Loans and the
issuance of the Letters of Credit hereunder.

     B.  Notwithstanding  anything  in this  Agreement  or implied by law to the
contrary,  the agreements of Company set forth in subsections  2.6D,  2.7, 3.5A,
3.6, 10.2,  10.3 and 10.4 and the agreements of Lenders set forth in subsections
9.2C, 9.4 and 10.5 shall survive the payment of the Loans,  the  cancellation or
expiration of the Letters of Credit and the  reimbursement  of any amounts drawn
thereunder, and the termination of this Agreement.

10.10 Failure or Indulgence Not Waiver; Remedies Cumulative.

     No  failure or delay on the part of  Administrative  Agent or any Lender in
the exercise of any power, right or privilege  hereunder or under any other Loan
Document  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  power,  right or  privilege.  All rights and
remedies  existing  under  this  Agreement  and the  other  Loan  Documents  are
cumulative to, and not exclusive of, any rights or remedies otherwise available.

                                      144

<PAGE>

10.11 Marshalling; Payments Set Aside.

     Neither  Administrative  Agent nor any Lender shall be under any obligation
to marshal  any  assets in favor of Company or any other  party or against or in
payment of any or all of the  Obligations.  To the extent that  Company  makes a
payment or payments  to  Administrative  Agent or Lenders (or to  Administrative
Agent for the benefit of Lenders),  or  Administrative  Agent or Lenders enforce
any security  interests or exercise their 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,  any other state or federal  law,  common law or any  equitable
cause,  then,  to the extent of such  recovery,  the  obligation or part thereof
originally intended to be satisfied, and all Liens, rights and remedies therefor
or related  thereto,  shall be revived and continued in full force and effect as
if such payment or payments had not been made or such  enforcement or setoff had
not occurred.

10.12 Severability.

     In case any  provision in or obligation  under this  Agreement or the Notes
shall be invalid,  illegal or unenforceable in any  jurisdiction,  the validity,
legality and  enforceability of the remaining  provisions or obligations,  or of
such provision or obligation in any other jurisdiction,  shall not in any way be
affected or impaired thereby.

10.13 Obligations Several; Independent Nature of Lenders' Rights.

     The  obligations  of Lenders  hereunder  are several and no Lender shall be
responsible  for the  obligations or Commitments of any other Lender  hereunder.
Nothing  contained herein or in any other Loan Document,  and no action taken by
Lenders pursuant hereto or thereto,  shall be deemed to constitute  Lenders as a
partnership,  an association,  a joint venture or any other kind of entity.  The
amounts  payable at any time  hereunder  to each Lender  shall be a separate and
independent  debt,  and each Lender shall be entitled to protect and enforce its
rights arising out of this Agreement and it shall not be necessary for any other
Lender to be joined as an additional party in any proceeding for such purpose.

10.14 Headings.

     Section and subsection  headings 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.

10.15 Applicable Law.

     THIS  AGREEMENT  AND THE RIGHTS AND  OBLIGATIONS  OF THE PARTIES  HEREUNDER
SHALL BE GOVERNED BY, AND SHALL BE CONSTRUED  AND ENFORCED IN  ACCORDANCE  WITH,
THE  INTERNAL  LAWS OF THE STATE OF NEW YORK  (INCLUDING  SECTION  5-1401 OF THE
GENERAL  OBLIGATIONS LAW OF THE STATE OF NEW YORK),  WITHOUT REGARD TO CONFLICTS
OF LAWS PRINCIPLES.



                                      145
<PAGE>

10.16 Successors and Assigns.

     This  Agreement  shall  be  binding  upon  the  parties  hereto  and  their
respective  successors and assigns and shall inure to the benefit of the parties
hereto and the  successors  and  assigns of Lenders  (it being  understood  that
Lenders' rights of assignment are subject to subsection 10.1). Neither Company's
rights or  obligations  hereunder  nor any  interest  therein may be assigned or
delegated by Company without the prior written consent of all Lenders.

10.17 Consent to Jurisdiction and Service of Process.

     ALL JUDICIAL PROCEEDINGS BROUGHT AGAINST COMPANY ARISING OUT OF OR RELATING
TO THIS AGREEMENT OR ANY OTHER LOAN DOCUMENT, OR ANY OBLIGATIONS THEREUNDER, MAY
BE BROUGHT IN ANY STATE OR FEDERAL COURT OF COMPETENT JURISDICTION IN THE STATE,
COUNTY  AND CITY OF NEW  YORK.  BY  EXECUTING  AND  DELIVERING  THIS  AGREEMENT,
COMPANY, FOR ITSELF AND IN CONNECTION WITH ITS PROPERTIES, IRREVOCABLY

          (I)   ACCEPTS   GENERALLY   AND   UNCONDITIONALLY   THE   NONEXCLUSIVE
     JURISDICTION AND VENUE OF SUCH COURTS;

          (II) WAIVES ANY DEFENSE OF FORUM NON CONVENIENS;

          (III) AGREES THAT SERVICE OF ALL PROCESS IN ANY SUCH PROCEEDING IN ANY
     SUCH COURT MAY BE MADE BY  REGISTERED  OR CERTIFIED  MAIL,  RETURN  RECEIPT
     REQUESTED, TO COMPANY AT ITS ADDRESS PROVIDED IN ACCORDANCE WITH SUBSECTION
     10.8;

          (IV)  AGREES  THAT  SERVICE  AS  PROVIDED  IN  CLAUSE  (III)  ABOVE IS
     SUFFICIENT  TO  CONFER  PERSONAL  JURISDICTION  OVER  COMPANY  IN ANY  SUCH
     PROCEEDING  IN ANY SUCH COURT,  AND  OTHERWISE  CONSTITUTES  EFFECTIVE  AND
     BINDING SERVICE IN EVERY RESPECT;

          (V) AGREES THAT LENDERS RETAIN THE RIGHT TO SERVE PROCESS IN ANY OTHER
     MANNER  PERMITTED  BY LAW OR TO BRING  PROCEEDINGS  AGAINST  COMPANY IN THE
     COURTS OF ANY OTHER JURISDICTION; AND

          (VI) AGREES THAT THE PROVISIONS OF THIS  SUBSECTION  10.17 RELATING TO
     JURISDICTION  AND VENUE  SHALL BE BINDING  AND  ENFORCEABLE  TO THE FULLEST
     EXTENT PERMISSIBLE UNDER NEW YORK GENERAL OBLIGATIONS LAW SECTION 5-1402 OR
     OTHERWISE.



                                      146

<PAGE>

10.18 Waiver of Jury Trial.

     EACH OF THE PARTIES TO THIS AGREEMENT HEREBY AGREES TO WAIVE ITS RESPECTIVE
RIGHTS TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING OUT
OF THIS  AGREEMENT OR ANY OF THE OTHER LOAN  DOCUMENTS  OR ANY DEALINGS  BETWEEN
THEM  RELATING  TO  THE  SUBJECT   MATTER  OF  THIS  LOAN   TRANSACTION  OR  THE
LENDER/BORROWER RELATIONSHIP THAT IS BEING ESTABLISHED. The scope of this waiver
is intended to be  all-encompassing of any and all disputes that may be filed in
any court and that relate to the subject matter of this  transaction,  including
contract claims, tort claims, breach of duty claims and all other common law and
statutory claims.  Each party hereto acknowledges that this waiver is a material
inducement to enter into a business  relationship,  that each has already relied
on this waiver in entering into this  Agreement,  and that each will continue to
rely on this waiver in their related future dealings.  Each party hereto further
warrants and represents  that it has reviewed this waiver with its legal counsel
and that it knowingly  and  voluntarily  waives its jury trial rights  following
consultation with legal counsel. THIS WAIVER IS IRREVOCABLE, MEANING THAT IT MAY
NOT BE MODIFIED  EITHER  ORALLY OR IN WRITING  (OTHER  THAN BY A MUTUAL  WRITTEN
WAIVER  SPECIFICALLY  REFERRING TO THIS SUBSECTION 10.18 AND EXECUTED BY EACH OF
THE PARTIES HERETO),  AND THIS WAIVER SHALL APPLY TO ANY SUBSEQUENT  AMENDMENTS,
RENEWALS,  SUPPLEMENTS  OR  MODIFICATIONS  TO THIS AGREEMENT OR ANY OF THE OTHER
LOAN  DOCUMENTS OR TO ANY OTHER  DOCUMENTS OR  AGREEMENTS  RELATING TO THE LOANS
MADE  HEREUNDER.  In the event of  litigation,  this Agreement may be filed as a
written consent to a trial by the court.

10.19 Confidentiality.

     Each Lender shall hold all non-public  information obtained pursuant to the
requirements  of this Agreement  which has been  identified as  confidential  by
Company in  accordance  with such  Lender's  customary  procedures  for handling
confidential  information of this nature and in accordance  with prudent lending
or investing  practices,  it being  understood and agreed by Company that in any
event a Lender may make  disclosures to Affiliates of such Lender or disclosures
reasonably  required by any bona fide  assignee,  transferee or  participant  in
connection  with the  contemplated  assignment or transfer by such Lender of any
Loans or any  participations  therein or by any direct or  indirect  contractual
counterparties  (or  the  professional  advisors  thereto)  in  swap  agreements
(provided that such swap counterparties and advisors are advised of and agree to
be bound by the provisions of this subsection 10.19) or disclosures  required or
requested  by  any  governmental  agency  or  representative  thereof  or by the
National  Association of Insurance  Commissioners  or pursuant to legal process;
provided that, unless specifically  prohibited by applicable law or court order,
each Lender shall notify  Company of any request by any  governmental  agency or
representative  thereof  (other  than any such  request in  connection  with any
examination  of the  financial  condition  of such  Lender by such  governmental
agency) for disclosure of any such non-public information prior to disclosure of
such  information;  and  provided,  further that in no event shall any Lender be
obligated or required to return any materials furnished by Company or any of its
Subsidiaries.

                                      147

<PAGE>

10.20 Judgment Currency.

     (a) If,  for  the  purposes  of  obtaining  judgment  in any  court,  it is
necessary  to  convert  a sum  due  hereunder  in any  currency  (the  "Original
Currency"  into another  currency  (the "Other  Currency"),  the parties  hereto
agree,  to the fullest  extent  permitted by law, that the rate of exchange used
shall  be that at  which  in  accordance  with  normal  banking  procedures  the
Administrative  Agent  could  purchase  the  Original  Currency  with the  Other
Currency on the Business  Day  immediately  preceding  the day on which any such
judgment, or any relevant part thereof, is paid or otherwise satisfied.

     (b) The  obligations  of  Company  in respect of any sum due from it to the
Lenders hereunder shall, notwithstanding any judgment in such Other Currency, be
discharged only to the extent that on the Business Day following  receipt by the
Administrative  Agent of any sum adjudged to be so due in the Other Currency the
Administrative  Agent may in accordance with normal banking procedures  purchase
the Original  Currency  with the Other  Currency;  if the  Original  Currency so
purchased  is less than the sum  originally  due to the Lenders in the  Original
Currency,  Company agrees, as a separate obligation and notwithstanding any such
judgment,  to indemnify the Lenders  against such loss, and if the amount of the
Original  Currency so purchased exceeds the sum originally due to the Lenders in
the Original Currency, the Lenders shall remit such excess to Company.

10.21 Counterparts; Effectiveness.

     This Agreement and any amendments,  waivers, consents or supplements hereto
or in connection  herewith 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 such  counterparts
together shall constitute but one and the same  instrument;  signature pages may
be  detached  from  multiple  separate  counterparts  and  attached  to a single
counterpart  so that all  signature  pages are  physically  attached to the same
document.  This  Agreement  shall  become  effective  upon  the  execution  of a
counterpart  hereof by each of the  parties  hereto and  receipt by Company  and
Administrative Agent of written or telephonic notification of such execution and
authorization of delivery thereof.

10.22 Supremacy of Credit Agreement.

     If and to the  extent  there  are conflicts or inconsistencies between the
provisions of this Agreement and any of the provisions of any other Loan
Document,  this Agreement shall prevail, except that (a) nothing in this clause
shall be deemed,  or serve,  to limit or impair the obligations of Company or
any other Loan Party with respect to the creation, attachment,  perfection or
preservation  of any security  interest (or local law equivalent  in the
relevant  jurisdictions);  and  (b)  the  provisions  of the Guaranties will
prevail to the extent provided for therein.


                  [Remainder of page intentionally left blank]



                                      148

<PAGE>

     IN WITNESS  WHEREOF,  the parties  hereto have caused this  Agreement to be
duly  executed  and  delivered  by  their  respective  officers  thereunto  duly
authorized as of the date first written above.

                 COMPANY:

                              MITEL CORPORATION


                              By: ______________________________________________
                              Title: ___________________________________________

                              Notice Address:

                                      Mitel Corporation
                                      350 Leggett Drive
                                      Kanata, Ontario
                                      CANADA  K2K 1X3
                                      Attention: Donald G. McIntyre
                                      Telephone: (613) 592-2122
                                      Telecopy:  (613) 592-4784

                                       S-1

<PAGE>




                 LENDERS:

                             CANADIAN IMPERIAL BANK OF COMMERCE,
                             individually and as Administrative Agent



                             By:
                                -----------------------------------------------
                             Name:
                             Title:


                             Notice Address:

                             Canadian Imperial Bank of Commerce
                             Commerce Court West, 7th Floor
                             199 Bay Street
                             Toronto, Ontario M5L 1A2
                             Attention: Warren Lobo
                                        Agent Loan Underwriting and Distribution
                                        Group
                             Telephone: (416) 980-4412
                             Telecopy:  (416) 980-5151



                                       S-2

<PAGE>



                             GOLDMAN SACHS CREDIT PARTNERS L.P.,
                             individually and as Syndication Agent



                             By:
                                ------------------------------------------------
                                Authorized Signatory


                             Notice Address:

                             Goldman Sachs Credit Partners L.P.
                             c/o Goldman, Sachs & Co.
                             85 Broad Street
                             New York, New York 10004
                             Attention: Stephen King
                             Telephone: 212-902-8123
                             Telecopy:  212-357-3000

                             with a copy to:

                             Goldman Sachs Credit Partners L.P.
                             c/o Goldman, Sachs & Co.
                             85 Broad Street
                             New York, New York  10004
                             Attention: John Makrinos
                             Telephone: 212-902-5977
                             Telecopy:  212-357-4597



                                       S-3

<PAGE>




                             GOLDMAN SACHS CANADA CREDIT
                             PARTNERS CO.



                             By:
                                ------------------------------------------------
                                Authorized Signatory


                             Notice Address:

                             Goldman Sachs Canada Credit Partners Co.
                             150 King Street, Suite 1201,
                             Toronto,
                             Ontario, M5H 1J9
                             Attention: Megan Sweeting
                             Telephone: 416-343-8827
                             Telecopy:  416-343-8750

                             with a copy to:

                             Goldman Sachs Credit Partners Co.
                             c/o Goldman, Sachs & Co.
                             85 Broad Street
                             New York, New York 10004
                             Attention: John Makrinos
                             Telephone: 212-902-5977
                             Telecopy:  212-357-4597






                                       S-4



© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission