AETHER SYSTEMS INC
10-Q, EX-2.2, 2000-08-14
COMPUTER INTEGRATED SYSTEMS DESIGN
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<PAGE>   1

                                                                    Exhibit 2.2


DATED                                                               2000
-------------------------------------------------------------------------------



                        (1)    C.I. LAW TRUSTEES LIMITED

                        (2)    WARM WOOL AND PILE LIMITED

                                            -and-

                        (3)    AETHER SYSTEMS, INC.




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

                                    SHARE PURCHASE AGREEMENT
                                       - relating to -
                                      IFX Group Limited

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




                           Wilmer, Cutler & Pickering
                                4 Carlton Gardens
                                 London SW1Y 5AA
                               +44 (20) 7872 1000


<PAGE>   2


                                      INDEX

<TABLE>
<CAPTION>
CLAUSES                                                                                        PAGE NO.
-------                                                                                        --------
<S>    <C>                                                                                      <C>
1.     INTERPRETATION................................................................................1
2.     SALE AND PURCHASE.............................................................................7
3.     COMPLETION....................................................................................8
4.     WARRANTIES...................................................................................12
5.     WARRANTY LIMITATIONS.........................................................................14
6.     INDEMNIFICATION..............................................................................14
7.     RETENTION....................................................................................15
8.     CONFIDENTIALITY..............................................................................18
9.     ANNOUNCEMENTS, ETC...........................................................................18
10.    COSTS........................................................................................18
11.    ASSIGNMENT...................................................................................19
12.    EFFECT OF COMPLETION.........................................................................19
13.    ENTIRE AGREEMENT.............................................................................19
14.    WAIVER, AMENDMENT............................................................................19
15.    FURTHER ASSURANCES...........................................................................20
16.    PAYMENTS.....................................................................................20
17.    TRUSTEE'S UNDERTAKING........................................................................20
18.    NOTICE.......................................................................................21
19.    COUNTERPARTS.................................................................................22
20.    GOVERNING LAW AND SUBMISSION TO JURISDICTION.................................................22
21.    INVALIDITY...................................................................................22
Schedule 1  Part 1: Particulars relating to the Company.............................................24
Schedule 1  Part 2:  Particulars relating to Subsidiaries IFX (UK) Limited..........................25
Schedule 2  Part 1:  Ownership of Shares of the Company.............................................33
            Part 2 : Ownership of Shares of the Subsidiaries and Intext.............................33
Schedule 3  Warranties..............................................................................35
Schedule 4  Tax Deed................................................................................64

</TABLE>


<PAGE>   3


<TABLE>
<S>         <C>                                                                        <C>
Schedule 5  The Properties..........................................................................76
Schedule 6  Limitations of Liability................................................................79


Exhibit A..................................................................................Option Deed

</TABLE>


<PAGE>   4


THIS AGREEMENT is made the                                   day of April 2000

BETWEEN:-

(1)     C.I. LAW TRUSTEES LIMITED, a company registered in Jersey, whose
        registered office is at Westaway Chambers, 39 Don Street, St. Helier,
        Jersey ("CILT");

(2)     WARM WOOL AND PILE LIMITED, a company registered in Belize, whose
        registered office is at 60 Market Square, Belize City, Belize ("WWP");

(each a "Seller" and together the "Sellers");

and

(3)     AETHER SYSTEMS, INC. of 1460 Cronridge Drive, Owings Mills, MD 2117,
        U.S.A. (the "Purchaser").

WHEREAS:-

(A)     IFX Group Ltd is a private limited company incorporated in England under
        the Companies Acts under number 03224875 ("the Company"), having an
        authorised and issued share capital as specified in Part 1 of Schedule
        1.

(B)     IFX Group Ltd has direct and an indirect subsidiaries, and a
        shareholding in Intext IFX Pte Limited, as detailed in Schedule 2.

(C)     The Sellers are the registered holders, and are able to procure the
        transfer, free from all liens, charges and encumbrances, of all of the
        issued and outstanding shares in IFX Group Ltd.

(D)     The Sellers wish to sell, and the Buyer wishes to purchase, all such
        shares.

(E)     Each of CILT and WWP have made warranties to the Purchaser in the terms
        of the warranties set out in this Agreement, subject only as provided in
        this Agreement and the Disclosure Letter, with the intent that the
        Purchaser should rely, and the Purchaser does rely, on such warranties
        in entering into this Agreement.

(F)     CILT is holding those of the Shares registered in its name on behalf of
        the Trust. CILT is the trustee of the Trust.

IT IS HEREBY AGREED as follows:-

1.      INTERPRETATION

        1.1.    The following provisions shall, unless the context otherwise
                requires, have effect for the interpretation of this Agreement.

                                       -1-


<PAGE>   5


        1.2.    The following words and expressions shall have the following
                meanings:-


<TABLE>
<S>                                             <C>
                "Accounts Date"                      30 June 1999;

                "Account Holders"                    has the meaning set out in Clause 7.1;

                "Accounts"                           the audited consolidated financial statements
                                                     (comprising a consolidated balance sheet, profit and
                                                     loss account, cash flow statement, notes and directors'
                                                     report and auditors' report) of the Company and the
                                                     Group, and audited financial statements (including a
                                                     balance sheet and profit and loss account) of each of
                                                     the Subsidiaries (other than IFX France) and Intext, in
                                                     each case as at and for the financial period ended on
                                                     the Accounts Date and, in each case, copies of which
                                                     are attached to the Disclosure Letter;

                "agreed form"                        means in the form agreed between the parties and
                                                     initialled by or on behalf the parties hereto as being
                                                     "in agreed form";

                "associated company"                 has the meaning set out in sections 416 et seq. T.A.;

                "Company"                            the company described in Recital (A);

                "Completion"                         the completion of the sale and purchase of the Shares
                                                     in accordance with Clause 2;

                "Completion Date"                    the date upon which Completion takes place or, as the
                                                     context may require, is scheduled to take place;

                "connected person"                   a connected person as defined in Section 839 T.A.;

                "Deed of Covenant"                   a deed in the agreed form to be executed by the parties
                                                     thereto at Completion;

                "Disclosure Letter"                  a letter of today's date together with the attachments
                                                     thereto addressed by CILT to the Purchaser disclosing
                                                     exceptions to the Warranties;

                "Encumbrance"                        any mortgage, charge (whether fixed or floating),
                                                     pledge, lien, security interest or other third party
                                                     right or interest (legal or equitable)
</TABLE>

                                       -2-


<PAGE>   6


<TABLE>
<S>                                                 <C>

                                                     over or in respect of the relevant asset,
                                                     security or right;

                "FA" or "F.(No.2)A"                  followed by a stated year mean the Finance Act or the
                                                     Finance (No. 2) Act of that year;

                "GAAP"                               generally accepted accounting principles and practices;

                "Group                               the Company and the Subsidiaries;

                "Group Company"                      the Company and/or any of the Subsidiaries;

                "holding company"                    a holding company as defined in Section 736 of the
                                                     Companies Act 1985;

                "Intellectual Property"              patents, trade marks, service marks, rights (registered
                                                     or unregistered) in any designs; applications for any
                                                     of the foregoing; trade or  business names; copyright
                                                     and topography rights; know-how; secret formulae and
                                                     processes; lists of suppliers and customers and other
                                                     confidential and proprietary knowledge and information;
                                                     rights protecting goodwill and reputation; database
                                                     rights and rights under licences and consents in
                                                     relation to such things and all rights or forms of
                                                     protection of a similar nature to any of the foregoing
                                                     or having equivalent effect anywhere in the world;

                "Intellectual Property Agreements"   agreements or arrangements relating in any way whether
                                                     wholly or partly to Intellectual Property;

                "Intext"                             Intext IFX Pte. Limited, a corporation incorporated in
                                                     Singapore with registration number 199702893E and
                                                     having its registered office at 15 Phillip Street,
                                                     08-00 Tanean Kiam Building, Singapore (048694);

                "Intext Shares"                      the shares of Intext, constituting 50% of the equity
                                                     (and holding 50% of the voting rights) of Intext, as
                                                     listed in Schedule 2;
</TABLE>

                                       -3-


<PAGE>   7


<TABLE>
<S>                                             <C>
                "ITA"                                the Inheritance Tax Act 1984 and any reference thereto
                                                     shall include any enactment replaced or modified
                                                     thereby as if Section 275 I.T.A. applied in like manner
                                                     to this Agreement;

                "IT Contracts"                       any agreements or arrangements with third parties
                                                     relating to IT Systems or IT Services, including all
                                                     hire purchase contracts or leases of Hardware owned or
                                                     used by the Company, licences of Software owned or used
                                                     by the Company, and other IT procurement;

                "IT Services"                        any services relating to the IT Systems or to any other
                                                     aspect of the Company's data processing or data
                                                     transfer requirements, including facilities management,
                                                     bureau services, hardware maintenance, software
                                                     development or support, consultancy, source code
                                                     deposit, recovery and network services;
                "IT Systems"                         Hardware and/or Software owned or used by the Company;

                "Hardware"                           any and all computer, telecommunications and network
                                                     equipment;

                "Listed Intellectual Property"       Intellectual Property referred to in the list annexed
                                                     to the Disclosure Letter;

                "Listed Intellectual Property        Intellectual Property Agreements set out in the list
                Agreements"                          annexed to the Disclosure Letter;

                "Management Accounts"                the unaudited financial statements of the Company and
                                                     the Group for the period from the Accounts Date to the
                                                     Management Accounts Date in the form enclosed with the
                                                     Disclosure Letter;

                "Management Accounts Date"           29 February 2000;

                "Payment Date"                       has the meaning set out in Clause 7.2;

                "Permitted Tax Liability"            in relation to the Trust, any taxation liability
                                                     arising out of the sale of the Shares registered in the
                                                     name of the Trustee pursuant to this Agreement;
</TABLE>

                                       -4-


<PAGE>   8


<TABLE>
<S>                                             <C>
                "Permitted Trust Liability"          in relation to the Trust, any taxation liability or any
                                                     other liability arising from the administration of the
                                                     Trust (other than any liability of the Trustee as
                                                     Seller or otherwise pursuant to this Agreement
                                                     (including, for the avoidance of doubt pursuant to the
                                                     Warranties) or the Tax Deed) and properly payable from
                                                     assets of the Trust, other than a Permitted Tax
                                                     Liability, provided that the aggregate of all such
                                                     liabilities shall not exceed US$250,000;

                "Property" or "Properties"           the property or properties full particulars of which
                                                     are set out in Schedule 5 or any part or parts thereof;

                "Purchaser's Lawyers"                Wilmer, Cutler & Pickering of 4 Carlton Gardens, London
                                                     SW1Y 5AA;

                "Retention"                          has the meaning set out in Clause 7.1;

                "Retention Account"                  has the meaning set out in Clause 7.1;

                "Sellers' Lawyers"                   CMS Cameron McKenna of Mitre House, 160 Aldersgate
                                                     Street, London EC1A 4DD;

                "Service Agreement"                  the service agreement to be entered into between Bo
                                                     Peter Hoegh Kroll and the Company in the agreed form;

                "Shares"                             the issued and allotted shares of the Company specified
                                                     in Schedule 1;

                "Software"                           any and all computer programs in both source and object
                                                     code form, including all modules, routines and
                                                     sub-routines thereof and all source and other
                                                     preparatory materials relating thereto, including user
                                                     requirements, functional specifications and programming
                                                     specifications, ideas, principles, programming
                                                     languages, algorithms, flow charts, logic, logic
                                                     diagrams, orthographic representations, file
                                                     structures, coding sheets, coding and including any
                                                     manuals or other documentation relating thereto and
                                                     computer generated works;
</TABLE>

                                       -5-


<PAGE>   9


<TABLE>
<S>                                             <C>
                "subsidiary"                         a subsidiary as defined in Section 736 of the Companies
                                                     Act 1983;

                "Subsidiary"                         a subsidiary of the Company;

                "T.A."                               The Income and Corporation Taxes Act 1988;

                "Tax Warranties"                     Those of the Warranties set out in Part J of Schedule 3;

                "Tax Deed"                           a deed to be executed by the parties thereto at
                                                     Completion in the form set out in Schedule 4;

                "T.C.G.A."                           the Taxation of Chargeable Gains Act 1992;

                "Trust Assets"                       in relation to the Trust, the aggregate of the cash
                                                     sums paid to the Trustee pursuant to Clause 3.5.4,
                                                     together with such assets as may result from the
                                                     investment of such sums less an amount equal to any
                                                     Permitted Trust Liability incurred prior to the date of
                                                     this Agreement not exceeding US$100,000;

                "Trust"                              The Sherborne Trust, a trust established under the laws
                                                     of the Island of Jersey;

                "Trust"                              The Sherbourne Trust;

                "Trustee"                            CILT;

                "V.A.T.A"                            the Value Added Tax Act 1994;

                "Warranties"                         the warranties set out in Schedule 3;

</TABLE>


        1.3.    Words, expressions and abbreviations defined in the Tax Deed
                shall have the same meanings in this Agreement.

        1.4.    References to the parties hereto include their respective
                permitted assignees and/or the respective successors in title to
                substantially the whole of their respective undertakings and, in
                the case of individuals, to their respective estates and
                personal representatives.

        1.5.    References to statutes or statutory provisions include
                references to any orders or regulations made thereunder and
                references to any statute, provision, order or regulation
                include references to that statute, provision, order or
                regulation as amended, modified, re-enacted or replaced from
                time-

                                       -6-


<PAGE>   10


                to-time before the date hereof (subject as otherwise expressly
                provided in this Agreement) but provided always that this
                sub-clause will not operate to increase the liability of any of
                the Sellers in respect of any such modification, re-enactment or
                replacement made after the date of this Agreement.

        1.6.    References to persons shall include bodies corporate and
                unincorporated, associations, partnerships and individuals.

        1.7.    Words denoting the singular shall include the plural and vice
                versa and words denoting any gender shall include all genders.

        1.8.    Headings to clauses, sub-clauses and paragraphs and descriptive
                notes in brackets relating to provisions of taxation statutes
                are for information only and shall not form part of the
                operative provisions of this Agreement.

        1.9.    References to Recitals, Clauses or Schedules are to recitals to,
                clauses of and schedules to this Agreement. References to
                Sections are to sections of the Warranties.

        1.10.   The Recitals and Schedules form part of the operative provisions
                of this Agreement and references to this Agreement shall, unless
                the context otherwise requires, include references to the
                Recitals and the Schedules, but shall not, for the avoidance of
                doubt, include the Tax Deed.

2.      SALE AND PURCHASE

        2.1.    Sale and Purchase: Subject to the terms and conditions of this
                Agreement, the Sellers shall sell with full title guarantee, and
                the Purchaser shall purchase, all of the Shares with effect from
                the commencement of business on the Completion Date free from
                all Encumbrances and together with all accrued benefits and
                rights attaching thereto.

        2.2.    Waiver of rights of Pre-emption: Each of the Sellers hereby
                waives any rights of pre-emption or first refusal or other
                rights he or she may have under the articles of association of
                the Company or otherwise.

        2.3.    Consideration:

                2.3.1.  The consideration for such sale and purchase shall be
                        the total sum of US$85,000,000 to be satisfied as
                        follows:-

                        a)      the sum of US$5,000,000 shall be paid into the
                                Retention Account in the manner provided in
                                Clause 7.1 and shall be dealt with in accordance
                                with Clause 7; and

                        b)      the balance shall be paid in cash at Completion
                                in the manner provided in Clause 3.5.4.

                                       -7-


<PAGE>   11


                2.3.2.  No later than 90 days from the date of this Agreement,
                        CILT shall receive an Option Deed, substantially similar
                        to the one attached hereto as Exhibit A, for ordinary
                        shares of a new entity to be formed ("Newco") in an
                        amount equal to 1.5% of Newco's initial capitalization
                        on a fully diluted basis with an exercise price based on
                        a valuation of Newco of US$200 million; or if Newco has
                        not been formed, then ordinary shares of the Company in
                        an amount equal to 1.5% of the capitalization on a fully
                        diluted basis of the Company on the date of this
                        Agreement with an exercise price based on a valuation of
                        the Company of US$100 million. Upon the formation of
                        Newco, CILT shall immediately forfeit the Option Deed
                        with respect to ordinary shares of the Company and shall
                        promptly receive an Option Deed with respect to ordinary
                        shares of Newco as set forth in this Clause 2.3.2. The
                        grant date for purposes of the Option Deed shall be the
                        date hereof.

3.      COMPLETION

        3.1.    Location: Completion shall take place immediately following the
                signing of this Agreement at the offices of the Purchasers'
                Lawyers or at such other time or place as the Sellers and the
                Purchaser may agree.

        3.2.    Sellers' Delivery: On Completion each of the Sellers shall
                deliver to the Purchaser:-

                3.2.1.  transfers in common form relating to those of the Shares
                        to be sold by him hereunder duly executed in favour of
                        the Purchaser or its nominee;

                3.2.2.  share certificates relating to such Shares;

                3.2.3.  any waivers or consents by shareholders of the Company
                        or the Subsidiaries or other person which the Purchaser
                        may reasonably require so as to enable the Purchaser or
                        its nominee to be registered as the holders of the
                        Shares;

                3.2.4.  effective written resignations under seal of W.
                        Ahlefeldt-Laurvig as director of the Company, of
                        Nicholas St. Clair Morgan and Ian St. Clair Morgan as
                        directors of IFX Infoforex Limited, of C.I. Law Services
                        Limited as secretary of IFX Infoforex Limited and of
                        Mitre Secretaries Limited as secretary of the Company
                        and IFX (UK) Limited and from any employment of or by
                        the Company or the Subsidiaries containing a
                        confirmation that they have no claim against the Company
                        or any of the Subsidiaries for compensation for loss of
                        office or termination of employment or otherwise whether
                        statutory or otherwise or for unpaid remuneration;

                                       -8-


<PAGE>   12


                3.2.5.  the common seals, certificates of incorporation,
                        statutory books, share certificate books, and all copies
                        of the memorandum and articles of association of each
                        Group Company incorporated in the United Kingdom and
                        copies of the equivalent documents (if any) in respect
                        of Group Companies incorporated outside the United
                        Kingdom;

                3.2.6.  all books of account and other records, cheque books and
                        all insurance policies in any way relating to or
                        concerning the respective businesses of each Group
                        Company, provided that the Sellers may discharge this
                        obligation by delivering all such items into the
                        Purchaser's possession at the premises of each Group
                        Company;

                3.2.7.  a counterpart of the Tax Deed duly executed by CILT;

                3.2.8.  deliver to the Purchaser's Lawyers a counterpart of the
                        service agreement of Mr. Kroll with the Company in the
                        agreed form, duly executed by Mr Kroll;

                3.2.9.  duly executed transfers of the 10 shares of 10,000
                        pesetas each held by W. Ahlefeldt-Laurvig in IFX
                        Finanzas Espania S.A. in favour of the Purchaser or its
                        nominee;

                3.2.10. share certificates relating to all of the issued shares
                        of each of the Subsidiaries incorporated in the United
                        Kingdom and Jersey;

                3.2.11. a release in the agreed form duly executed under seal by
                        Mr. Kroll, Mr. W. Ahlefeldt-Laurvig, Mr. F.
                        Ahlefeldt-Laurvig, Mr. Verlaine and the Sellers, in a
                        form satisfactory to the Purchaser, releasing the
                        Company and the Subsidiaries from any liability
                        whatsoever (actual or contingent) which may be owing to
                        any of them by the Company or any of the Subsidiaries
                        except for liabilities under specified continuing
                        service or employment, consultancy or similar contracts
                        between the Company and/or any Group Company and such
                        persons and indemnifying the Purchaser's Group in
                        respect of any claims which may be brought against any
                        of the Purchasers or any member of the Purchaser's Group
                        with respect to any such liability subsisting at the
                        Completion Date;

                3.2.12. the Deed of Covenant duly executed by Bo Peter Heogh
                        Kroll, William Ahlefeldt-Laurvig, Frederick
                        Ahlefeldt-Laurvig and Yvan Verlaine;

                3.2.13. the executed Amending Agreement and evidence of the
                        directorship of Elisabeth Mulijohardjo of Intext Pte
                        Limited as at the date of execution of the Amending
                        Agreement;

                                       -9-


<PAGE>   13


                3.2.14. evidence that all of the options held by Warm Wool and
                        Pile Limited over shares in the Company or any
                        Subsidiary have been exercised or cancelled; and

                3.2.15. releases in agreed form from each of Kirsten Kroll, F.
                        Ahlefeldt-Laurvig and Elisabeth Ahlefeldt-Laurvig
                        releasing the Company and each Subsidiary from any and
                        all liabilities which may be owing by the Company or any
                        Subsidiary to each of them or to any of their respective
                        connected persons or associated companies.

        3.3.    Board Resolutions of the Company and IFX Infoforex (UK) Limited:
                At Completion (and prior to the taking effect of the
                resignations of the Directors referred to in Clause 3.2.4) the
                Sellers shall procure the passing of board resolutions of the
                Company and IFX Infoforex (UK) Limited:-

                3.3.1.  approving and sanctioning for registration (subject
                        where necessary to due stamping) the transfers in
                        respect of the Shares and any shares to which Clause
                        3.2.11 refers;

                3.3.2.  appointing such persons as the Purchaser may nominate to
                        be the directors and secretary of the Company and IFX
                        Infoforex (UK) Limited;

                3.3.3.  revoking all mandates to bankers of the Company or IFX
                        Infoforex (UK) Limited of any director or secretary
                        resigning under Clause 3.2.4 and giving authority in
                        favour of the directors appointed under Clause 3.3.2 or
                        such other persons as the Purchaser may nominate to
                        operate the bank accounts thereof;

                3.3.4.  resolving that the registered office of the Company and
                        IFX Infoforex (UK) Limited be changed to 4 Carlton
                        Gardens, London, SW1Y 5AA; and

                3.3.5.  approving the execution of the Service Agreement.

        3.4.    Board Resolutions of Other Group Companies: At completion (and
                prior to the taking effect of the resignations referred to in
                Clause 3.2.4) the Sellers shall procure the passing of board or
                shareholders resolutions of the Subsidiaries (other than IFX
                Infoforex (UK) Limited) or the taking of such other actions with
                respect to such Subsidiaries as are required under applicable
                law to:-

                3.4.1.  approve the transfers in respect of any shares of such
                        Subsidiaries to which Clause 3.2.11 refers;

                3.4.2.  appoint such persons as the Purchaser may nominate to be
                        officers or directors (or equivalent in the relevant
                        jurisdictions) of such Subsidiaries; and

                                      -10-


<PAGE>   14


                3.4.3.  revoke all mandates to bankers of the such Subsidiaries
                        of any director or secretary (or equivalent in the
                        relevant jurisdiction) resigning under Clause 3.2 4 and
                        giving authority in favour of the persons appointed
                        under Clause 3.4.2 or such other persons as the
                        Purchaser may nominate to operate the bank accounts
                        thereof.

        3.5.    Purchaser's Delivery: Upon compliance by the Sellers with the
                provisions of Clauses 3.2, 3.3 and 3.4, the Purchaser shall:-

                3.5.1.  deliver to the Sellers' Lawyers a counterpart of the Tax
                        Deed duly executed by the Purchaser;

                3.5.2.  deliver to the Seller's Lawyers a counterpart of the
                        Service Agreement duly executed by the Company;

                3.5.3.  pay the sum of US$5,000,000 to the Retention Account;
                        and

                3.5.4.  pay the sum of US$77,450,000 to the following bank
                        account for and on behalf of CILT and the sum of
                        US$2,550,000 to the following bank account for and on
                        behalf of WWP:-

                               Lloyds Bank Plc
                               Threadneedle Street
                               London EC2
                               Sort Code: 30 00 09
                               Account Number: 11880403

        3.6.    Payment Method: All sums payable by the Purchaser pursuant to
                Clauses 3.5.3 and 3.5.4 shall be paid by wire transfer for the
                same day value to the banks at the accounts specified, whose
                receipt shall be an effective discharge of the Purchaser's
                obligation to pay such sum to the Sellers. The Purchaser shall
                not be concerned to see to the application or be answerable for
                the loss or misapplication of such sums.

        3.7.    Waiver: The Purchaser may in its absolute discretion waive any
                requirement contained in Clause 3.2. The Purchaser shall not be
                obliged to complete the purchase of any of the Shares unless the
                purchase of all the Shares is completed in accordance with this
                Agreement and unless all of the provisions of Clause 3.2 are
                complied with.

4.      WARRANTIES

        4.1.    Warranties; Survival:

                4.1.1.  CILT warrants to the Purchaser in the terms of the
                        Warranties as at the date hereof; and

                                      -11-


<PAGE>   15


                4.1.2.  WWP warrants to the Purchaser (the "WWP Warranties") as
                        at the date hereof that;

                        a)      WWP is the registered owner and the legal owner
                                of the Shares listed with WWP's name in Part 1
                                of Schedule 2 and has good and valid title to
                                such shares free and clear of all Encumbrances;

                        b)      except for this Agreement, none of the Shares
                                registered in the name of WWP are subject to any
                                voting trust, agreement, option or other
                                contract, agreement, arrangement, commitment, or
                                understanding, actual or contingent, restricting
                                or otherwise relating to the voting, dividend
                                rights, sale, or disposition of such Shares;

                        c)      this Agreement is a valid and binding obligation
                                of WWP, enforceable against WWP in accordance
                                with its terms; and

                        d)      the execution of this Agreement does not, the
                                consummation of the transactions effected by
                                this Agreement do not, and compliance with the
                                terms of this Agreement will not violate,
                                conflict with, require consent under or cause a
                                default under any provision of any agreement,
                                contract, arrangement, judgment, order, decree,
                                statute, or law applicable to WWP or its
                                property or assets;

                and so that the remedies of the Purchaser in respect of any
                breach of any of the Warranties or the WWP Warranties shall
                continue to subsist notwithstanding completion of the sale and
                purchase pursuant to this Agreement.

        4.2.    No Liability of the Company: Any information supplied by or on
                behalf of any Group Company or by its officers, employees,
                agents, accountants, lawyers or other advisers to the Sellers or
                their respective officers, employees, agents, accountants,
                lawyers or other advisers in connection with the Warranties, the
                WWP Warranties or the Disclosure Letter or otherwise in relation
                to the business and affairs of the Company or the Subsidiaries
                shall not constitute a representation or warranty or guarantee
                as to the accuracy thereof by any Group Company and each of CILT
                and WWP hereby waives any and all claims which it might
                otherwise have against any Group Company in respect thereof.
                This shall not preclude either CILT and/or WWP from claiming
                against the other or Mr. Kroll, Mr. F. Ahlefeldt-Laurvig, Mr W.
                Ahlefeldt-Laurvig or Mr Yvan Verlaine under any right of
                contribution or indemnity to which it may be entitled.

        4.3.    CILT's Knowledge: Where any of the Warranties is qualified as
                being made "so far as CILT is aware" or is qualified by any
                similar expression, that

                                      -12-


<PAGE>   16


                statement shall be a reference to the knowledge, awareness or
                belief of CILT having made due and careful enquiry of Mr. Kroll,
                Mr. F. Ahlefeldt-Laurvig, Mr. Yvan Verlaine and Mr Peyter
                Bjerregard and no other person, and the knowledge (actual or
                constructive), awareness and belief of each such person with
                respect to the relevant matter shall be imputed to CILT.

        4.4.    Separate Obligations: Each of the Warranties and the WWP
                Warranties shall be construed as a separate warranty and (save
                as expressly provided to the contrary) shall not be limited by
                the terms of any of the other Warranties or by any other term of
                this Agreement.

        4.5.    Disclosure Letter: Subject to Clause 6.1, CILT shall be under no
                liability under the Warranties in relation to any matter forming
                the subject matter of a claim under the Warranties to the extent
                that such matter or circumstances giving rise thereto are fairly
                disclosed in the Disclosure Letter or expressly provided for or
                stated to be exceptions under the terms of this Agreement.

        4.6.    Documents: No letter, document or other communication shall be
                deemed to constitute a disclosure for the purposes of the
                Warranties unless the same is expressly referred to in the
                Disclosure Letter.

        4.7.    Reliance: Each of CILT and WWP acknowledges that the Purchaser
                has entered into this Agreement in reliance inter alia upon the
                Warranties and the WWP Warranties.

        4.8.    Purchaser's Rights: Save as set out in this Agreement the rights
                and remedies of the Purchaser in respect of any breach of the
                Warranties or the WWP Warranties shall not be affected by
                Completion, or failing to exercise or delaying the exercise of
                any right, or remedy, or by any other event or matter, except a
                specific and duly authorised written waiver or release, and no
                single or partial exercise of any right or remedy shall preclude
                any further or other exercise.

        4.9.    Waiver: Notwithstanding any rule of law or equity to the
                contrary, any release, waiver or compromise or any other
                arrangement of any kind whatever which the Purchaser may agree
                to or effect in relation to one of the Sellers in connection
                with this Agreement, and in particular the Warranties or the WWP
                Warranties shall not affect the rights and remedies of the
                Purchaser in relation to the other Seller.

        4.10.   Other Information: No information relating to any Group Company
                of which the Purchaser has knowledge (actual or constructive)
                other than that contained in or referred to in this Agreement
                and the Disclosure Letter shall prejudice any claim by the
                Purchaser under the Warranties or operate to reduce any amount
                recoverable under the Warranties.

                                      -13-


<PAGE>   17


5.      WARRANTY LIMITATIONS

The provisions of Schedule 6 shall apply with respect to the liability of CILT
under the Warranties.

6.      INDEMNIFICATION

        6.1.    Indemnity: CILT shall indemnify the Purchaser against all
                liabilities, losses, claims, damages, causes of action and
                expenses of any kind, including legal and other professional
                costs and interest other than legal and professional costs of
                IFX Scandinavia incurred to date arising out of or in relation
                to the litigation with Nihlmark as conducted in the Stockholm
                Commercial Court and referred to in the Disclosure Letter (the
                "Litigation") as disclosed in the Disclosure Letter PROVIDED
                THAT the Purchaser shall allow CILT, at CILT's sole expense, to
                take the sole conduct of the Litigation as CILT may deem
                appropriate in connection with such Litigation in the name of
                the Company (including, without prejudice to the generality of
                the foregoing, the making of any agreement, settlement or
                compromise with any third party in relation to any such claim or
                adjudication without the prior consent of the Purchaser but
                having first consulted with the Purchaser with regard to such
                matters) and in connection therewith the Purchaser shall, upon
                receiving such security for its costs as the Purchaser may
                reasonably request, give or cause to be given to CILT such
                assistance as CILT may reasonably require in avoiding,
                disputing, resisting, settling, compromising, defending or
                appealing the Litigation and shall instruct such solicitors or
                other professional advisers as CILT may (with the Purchaser's
                consent, such consent not to be unreasonably withheld) nominate
                to act on behalf of IFX Scandinavia, as appropriate, but to act
                in accordance with CILT's sole instructions and PROVIDED FURTHER
                THAT the Purchaser shall and shall procure that each Group
                Company shall make no admission of liability, agreement,
                settlement or compromise with any third party in relation to the
                Litigation without the prior written consent of CILT.

        6.2.    Schedule 6: For the avoidance of doubt, the provisions of
                Schedule 6 (other than paragraph 14 thereof) shall not apply to
                any claim under this Clause 6.

7.      RETENTION

        7.1.    Retention: The sum referred to in Clause 2.3.1 (the "Retention")
                shall on Completion be paid into an account (the "Retention
                Account") at Lloyd's Bank TSB, Pall Mall, St. James's Branch
                (Account number 3890394, sort code 30-00-08) to be opened prior
                to Completion in the joint names of the Sellers' Lawyers and the
                Purchaser's Lawyers (the "Account Holders").

        7.2.    Initial Payment Date and Final Payment Date:

                7.2.1.  On the date falling 6 months after Completion (the
                        "Initial Payment Date") the Account Holders shall pay to
                        CILT a sum (together with interest thereon) which leaves
                        (subject to clause

                                      -14-


<PAGE>   18


                        7.4.1) a balance in the Retention Account of
                        US$2,500,000 excluding interest but less banking charges
                        thereon (the "Initial Payment").

                7.2.2.  On the first anniversary of Completion (the "Final
                        Payment Date") the balance of the monies standing to the
                        credit of the Retention Account after payment of all
                        Settled Claims therefrom pursuant to clause 7.5 (the
                        "Final Payment") shall (subject to clause 7.4.1) be paid
                        to CILT and together the Initial Payment Date and the
                        Final Payment Date shall be "Payment Dates".

        7.3.    Payments out of Retention: The Purchaser may, from time to time
                before a Payment Date, by notice to CILT require immediate
                payment out of the Retention Account of the amount of any claim
                by the Purchaser in relation to the Warranties or under the Tax
                Deed and shall be entitled to be paid in accordance with such a
                notice if and to the extent that:

                7.3.1.  CILT has agreed the amount by giving written consent; or

                7.3.2.  a court of competent jurisdiction has established the
                        liability of CILT and awarded in respect of the quantum
                        of the claim and no right of appeal lies in respect of
                        such judgment or the parties are debarred whether by the
                        passage of time or otherwise from exercising any such
                        right of appeal or the other party has stated in writing
                        that it does not wish to exercise its right of appeal;

                a claim which has been finalised in accordance with 7.3.1, 7.3.2
                and 7.3.3 and where the Purchaser has received payment of any
                finalised amount due from CILT being a "Settled Claim".

        7.4.    Outstanding claims:

                7.4.1.  If prior to the Initial Payment Date the Purchaser has
                        notified CILT in writing of a duly notified claim in
                        relation to the Warranties or under the Tax Deed (a
                        "Notified Claim") which has not become a Settled Claim
                        or become a Lapsed Claim as hereinafter defined on or
                        before the Initial Payment Date then the Initial Payment
                        shall be reduced so that there shall be retained in the
                        Retention Account after the Initial Payment Date

                        either:

                        a)      the sum of US$2,500,000 and whichever is the
                                lesser of:

                                (1)     the amount of the Initial Payment but
                                        for the provisions of this clause 7.4.1;
                                        or

                                      -15-


<PAGE>   19


                                (2)     the aggregate amount of the Notified
                                        Claim or Claims which have not become
                                        Settled Claims or Lapsed Claims as
                                        hereinafter defined; or

                        b)      (if lower) the amount then remaining in the
                                Retention Account

                        and the balance (if any) shall then be paid to CILT on
                        the Initial Payment Date in accordance with clause 7.5.

                7.4.2.  If prior to the Final Payment Date the Purchaser has
                        notified CILT in writing of a Notified Claim which has
                        not become a Settled Claim or been withdrawn on or
                        before the Final Payment Date then there shall be
                        retained in the Retention Account whichever is the
                        lesser of:

                        a)      the whole of the amount then remaining in the
                                Retention Account; and

                        b)      the aggregate amount of the Notified Claims
                                which have not (i) become Settled Claims or (ii)
                                been withdrawn or lapsed due to failure of the
                                Purchaser to institute proceedings as required
                                by paragraph 3.2 of Schedule 6 or in respect of
                                which a court of competent jurisdiction has
                                established that CILT has no liability or
                                decided that there is no claim and no right of
                                appeal lies in respect of such judgment or the
                                parties are debarred whether by the passage of
                                time or otherwise from exercising any such right
                                of appeal or the other party has stated in
                                writing that it does not wish to exercise its
                                right of appeal (in any such case a ("Lapsed
                                Claim");

                        and the balance (if any) shall then be paid to CILT on
                        the Final Payment Date in accordance with clause 7.5.

        7.5.    As soon as possible after a Notified Claim outstanding at the
                relevant Payment Date has become a Settled Claim or has been
                withdrawn CILT and the Purchaser shall instruct the Account
                Holders to make payment out of the Retention Account:

                7.5.1.  to the Purchaser of a sum equal to the amount for which
                        the Notified Claim or Claims aforesaid shall have become
                        Settled Claims in accordance with clause 7.3 in favour
                        of the Purchaser together with a proportion of the total
                        interest earned on the monies deposited in the Retention
                        Account from the date of payment into the Retention
                        Account until the date of payment out (being that
                        proportion which the sum payable to the Purchaser out

                                      -16-


<PAGE>   20


                        of the Retention Account pursuant to this sub-clause
                        bears to the total sums paid into the Retention
                        Account);

                7.5.2.  as to the balance of the monies standing to the credit
                        of the Retention Account, (subject to clause 7.4) to
                        CILT together with interest calculated on the basis set
                        out in paragraph 7.5.1 above.

        7.6.    Other Rights: The payment of any sums to the Purchaser in
                accordance with Clause 7.4 in or towards satisfaction of any
                claim under the Warranties or the Tax Deed shall not prejudice
                or affect any other rights or remedies of the Purchaser for the
                purpose of recovering any additional amount due from CILT
                pursuant to the Warranties and the Tax Deed.

        7.7.    Interest: The interest accrued on the Retention Account shall
                belong to CILT and the Purchaser in proportion to the respective
                amounts of the Retention released to each of them from time to
                time.

        7.8.    Instructions to Account Holders: CILT and the Purchaser shall,
                as and when necessary, give instructions to the Account Holders
                to procure compliance with this Clause 7. The Account Holders
                shall not be required to take any action with respect to the
                Retention Account except on the written instructions of CILT and
                the Purchaser. The Retention Account shall be used only for the
                purpose specified in this Clause 7.

        7.9.    Discharge: Any payment out of the Retention Account to CILT
                shall be made to an account specified in writing by CILT to the
                Purchaser and receipt from the bank holding such account shall
                be an effective discharge of the Purchaser's and Account
                Holders' obligations to pay such sums to CILT. The Purchaser and
                the Account Holders shall not be concerned to see to the
                application, or be answerable for the loss or misapplication, of
                such sums. Any payment out of the Retention Account to the
                Purchaser shall be made to such bank account as the Purchaser
                shall notify in writing to the Account Holders.

        7.10.   Tax liability: Any tax liability of the Purchaser arising on
                interest paid on any part of the Retention released to it under
                sub-clause 7.3 shall be for the account of the Purchaser.

8.      CONFIDENTIALITY

Each of the Sellers hereby severally covenants with the Purchaser that it shall
not at any time divulge to any third party whatsoever or use for its own or
another's advantage any of the designs, formulae, inventions or improvements
relating to products or prospective products designed, manufactured or sold by
any Group Company at any time before Completion or any other trade secrets or
confidential know-how or confidential financial or trading information as to
customers or suppliers or in relation to the business, finances, dealings or
affairs of any Group Company save only (i) insofar as such Seller proves the
same has become a matter of public knowledge (otherwise than by reason of a
breach of

                                      -17-


<PAGE>   21


this Clause 8) or (ii) insofar as may be required by law, in which case the
relevant Seller or Sellers shall give all reasonable notice of such disclosure,
consult in advance with the Purchaser as to such disclosure and limit such
disclosure strictly to the extent so required by law.

9.      ANNOUNCEMENTS, ETC.

        9.1.    Neither the making of this Agreement nor its terms shall be
                disclosed by the Purchaser prior to or at Completion without the
                prior consent of the Sellers (such consent not to be
                unreasonably withheld or delayed), unless such disclosure is
                required by law, and such disclosure shall then only be made to
                such person or persons, in the manner and to the extent required
                by law or as otherwise agreed with the Sellers and after
                notifying the Sellers of the terms of such disclosure.

        9.2.    Neither the making of this Agreement nor its terms shall be
                disclosed by any of the Sellers without the prior written
                consent of the Purchaser (such consent not to be unreasonably
                withheld or delayed) unless such disclosure is required by law
                and disclosure shall then only be made after prior consultation
                with the Purchaser as to the terms of such disclosure, and only
                to the person or persons, in the manner and to the extent
                required by law or as otherwise agreed by the Purchaser.

10.     COSTS

Save as expressly otherwise provided in this Agreement each of the parties to
this Agreement shall bear his, her or its own legal, accountancy and other
costs, charges and expenses connected with the negotiation, preparation and
implementation of this Agreement and any other agreement incidental to or
referred to in this Agreement.

11.     ASSIGNMENT

        11.1.   The benefit of this Agreement may be assigned by the Purchaser
                to any company of which it is a subsidiary or to any other
                company which is a subsidiary of the Purchaser or of the
                Purchaser's holding company provided always that no such
                assignment shall operate to increase the liability of any party
                hereto.

        11.2.   Subject to Clause 11.1, this Agreement and all rights and
                benefits under it are personal to the parties to this Agreement
                and may not be assigned at law or in equity without the prior
                written consent of the other such parties.

12.     EFFECT OF COMPLETION

The terms of this Agreement shall, insofar as not performed at Completion and
subject as specifically otherwise provided in this Agreement, continue in force
after and notwithstanding Completion.

                                      -18-


<PAGE>   22


13.     ENTIRE AGREEMENT

This Agreement (together with any documents referred to in it) constitutes the
entire agreement between the parties to this Agreement in connection with the
subject matter of this Agreement. No such party has relied upon any
representation save for any representation expressly set out in this Agreement
(or any document referred to in this Agreement).

14.     WAIVER, AMENDMENT

        14.1.   Method of Waiver: There shall be no waiver of any term,
                provision or condition of this Agreement unless such waiver is
                evidenced in writing and signed by the waiving party.

        14.2.   Delay; Effect of Waiver etc.: Save as expressly set out in this
                Agreement, no omission or delay on the part of any party to this
                Agreement in exercising any right, power or privilege under this
                Agreement shall operate as a waiver of such right, power or
                privilege, nor shall any single or partial exercise of any such
                right, power or privilege preclude any other or further exercise
                of such right, power or privilege or of any other right, power
                or privilege. Save as expressly set out in this Agreement, the
                rights and remedies in this Agreement provided are cumulative
                with and not exclusive of any rights or remedies provided by
                law.

        14.3.   Written Variation: No variation to this Agreement shall be
                effective unless made in writing and signed by all the parties
                to this Agreement.

15.     FURTHER ASSURANCES

At any time after Completion, the Sellers shall at the reasonable cost of the
Purchaser execute all such documents and do such acts and things as the
Purchaser may reasonably require for the purpose of vesting in the Purchaser the
full legal and beneficial title to the Shares and giving to the Purchaser the
full benefit of this Agreement.

16.     PAYMENTS

All payments to be made pursuant to this Agreement shall be effected in the
lawful currency of the United States.

17.     TRUSTEE'S UNDERTAKING

        17.1.   Undertaking: The Trustee hereby undertakes with the Purchaser
                that it will not before the expiry of 2 years from Completion
                make any appointment to any beneficiary or discharge any
                liability of any beneficiary or make any payment of capital to
                any beneficiary or otherwise make any payment out of funds of
                the Trust or release any assets of the Trust, except as provided
                in Clauses 17.2 and 17.3.

                                      -19-


<PAGE>   23


        17.2.   Minimum Amounts: The Trustees shall be permitted to release
                assets from the Trust to the extent (and only to the extent)
                that:

                17.2.1. during the period from Completion until the first
                        anniversary of Completion (the "Initial Period"), the
                        amount of the Trust Assets does not at any time during
                        the Initial Period fall below US$20,500,000 plus the
                        Trustees' bona fide estimate of any Permitted Tax
                        Liability and Permitted Trust Liability and the amount
                        of any Notified Claim that has not become a Settled
                        Claim or a Lapsed Claim;

                17.2.2. during the period from the first anniversary of
                        Completion until the second anniversary of Completion
                        (the "Second Period"), the amount of the Trust Assets
                        does not at any time during the Second Period fall below
                        the lesser of (i) US$20,500,000 plus the Trustees' bona
                        fide estimate of any Permitted Tax Liability and
                        Permitted Trust Liability and (ii) US$17,000,000 plus
                        the Trustees' bona fide estimate of any Permitted Tax
                        Liability or Permitted Trust Liability and the amount of
                        any Notified Claim that has not become a Settled Claim
                        or a Lapsed Claim on or before such first anniversary;
                        and

                17.2.3. after the second anniversary of Completion and for so
                        long as any Notified Claim has not become a Settled
                        Claim or a Lapsed Claim, the amount of the Trust Assets
                        does not fall below the Trustee's bona fide estimate of
                        any Permitted Tax Liability and Permitted Trust
                        Liability plus the amount of all such Notified Claim or
                        Claims.

        17.3.   Permitted Releases: The Trustees shall at any time be permitted
                to release assets from the Trust for the purpose of discharging
                a Permitted Tax Liability or a Permitted Trust Liability or for
                the purpose of discharging a liability to the Purchaser under
                this Agreement or the Tax Deed, provided that any such release
                for the purposes of disclosing a Permitted Tax Liability or a
                Permitted Trust Liability shall only reduce the Trust Assets
                below the minimum amount specified in Clause 17.2 to the extent
                that the balance of the Trust Funds is not sufficient for such
                purpose.

18.     NOTICE

        18.1.   Methods of Service: Save as specifically otherwise provided in
                this Agreement any notice, demand or other communication to be
                served under this Agreement may be served upon any party to this
                Agreement only by posting by first class post or delivering it
                or sending it by confirmed facsimile transmission to the party
                to be served at its address above, or facsimile number given
                below, or at such other address or number as he, she or it may
                from time to time notify in writing to the other parties:-

<TABLE>
<S>                                                    <C>
                The Purchaser:                              Fax No:
</TABLE>

                                      -20-


<PAGE>   24


<TABLE>
<S>                                                    <C>
                For the attention of:                       Davis Oros
                with a copy to:                             Fax No:
                For the attention of:                       David Reymann

                C.I. Law Trustees Limited:                  Fax No: 01534 733 979
                For the attention of:                       Nicholas St. Clair Morgan

                Warm Wool and Pile Limited:                 Fax No: 00 34 91 449 0510
                For the attention of:                       Mr Yvan Verlaine
</TABLE>

        18.2.   Proof of Service: A notice or demand served by first class post
                shall be deemed duly served forty-eight hours after posting and
                a notice or demand sent by facsimile transmission shall be
                deemed to have been served at the time of transmission and in
                proving service of such notice or demand it will be sufficient
                to prove, in the case of a letter, that such letter was properly
                stamped or franked first class, addressed and placed in the post
                and, in the case of a facsimile transmission, that such
                facsimile was duly transmitted to a current facsimile number of
                the addressee at the address referred to above.

19.     COUNTERPARTS

This Agreement may be executed in any number of counterparts and by the several
of the parties on separate counterparts, each of which when so executed and
delivered shall be an original, but all the counterparts shall together
constitute one and the same instrument.

20.     GOVERNING LAW AND SUBMISSION TO JURISDICTION

        20.1.   Governing Law: This Agreement shall be governed by, and
                construed in accordance with, English law.

        20.2.   Jurisdiction: The parties to this Agreement hereby irrevocably
                submit to the exclusive jurisdiction of the High Court of
                Justice in London for the purpose of hearing and determining any
                dispute arising out of, under or in connection with this
                Agreement and for the purpose of enforcement of any judgment
                against their respective assets.

        20.3.   Service: The parties to this Agreement agree that service of any
                writ, notice or other document for the purpose of any
                proceedings in such court shall be duly served upon it if
                delivered or sent by registered post, to the address of the
                party set out above or such other address as may from time to
                time have been notified by such party to all the other parties
                for the purpose of service of notices, demands or other
                communications under this Agreement.

21.     INVALIDITY

If at any time any one or more of the provisions of this Agreement is or becomes
invalid, illegal or unenforceable in any respect under any law, the validity,
legality and

                                      -21-


<PAGE>   25


enforceability of the remaining provisions of this Agreement shall not be in any
way affected or impaired.




                                      -22-


<PAGE>   26


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

SIGNED:
by: NICHOLAS ST. CLAIR MORGAN
For and on behalf of
C.I.Law Trustees Limited

SIGNED:
       ------------------------------------------------
by: YVAN VERLAINE as duly authorised attorney of
Warm Wool and Pile Limited

SIGNED:
       ------------------------------------------------
by: Brian W. Keane
For and on behalf of
AETHER SYSTEMS, INC.




                                      -23-


<PAGE>   27


                                   SCHEDULE 1

                   PART 1: PARTICULARS RELATING TO THE COMPANY

<TABLE>
<S>                                   <C>
Authorised share capital:                   200,000 Ordinary Shares of Pound Sterling1 each


Issued share capital:                       55,832 Ordinary Shares of Pound Sterling1 each


Directors:                                  Bo Peter Hoegh Kroll
                                            Christian William Ahlefeldt-Laurvig


Secretary:                                  Mitre Secretaries Limited


Auditors:                                   BDO Stoy Hayward


Accounting reference date:                  30th June


Registered Office:                          Mitre House
                                            Aldersgate Street
                                            London EC1A 4DD
</TABLE>

                                      -24-


<PAGE>   28


                                   SCHEDULE 1

                  PART 2: PARTICULARS RELATING TO SUBSIDIARIES
                                IFX (UK) LIMITED

<TABLE>
<S>                                   <C>
Authorised share capital:                   100 Ordinary Shares of pound sterling 1 each


Issued share capital:                       2 Ordinary Shares of pound sterling 1 each


Director:                                   Bo Peter Hoegh Kroll


Secretary:                                  Mitre Secretaries Limited


Auditors:                                   BDO Stoy Hayward


Accounting reference date:                  30th June


Registered Office:                          Mitre House
                                            Aldersgate Street
                                            London
                                            EC1A 4DD
</TABLE>

                                      -25-


<PAGE>   29


                            B: IFX INFOFOREX LIMITED

<TABLE>
<S>                                   <C>
Authorised share capital:                   10,000 ordinary shares of pound sterling 1 each


Issued share capital:                       2 ordinary shares of pound sterling 1 each


Directors:                                  Nicholas St Clair Morgan
                                            Ian  St Clair Morgan

Auditors:                                   BDO Stoy Haywood


Accounting reference date:                  30th June


Registered Office:                          PO Box 302
                                            Westaway Chambers
                                            39 Don Street,
                                            St Helier,
                                            Jersey,
                                            Channel Islands
</TABLE>

                                      -26-


<PAGE>   30


                             C: IFX Scandinavia Ap S

<TABLE>
<S>                                 <C>
Authorised share capital:                   DKK 200,000


Issued share capital:                       DKK 200,000


Directors:                                  Kai Vincens Frederik Ahlefeldt-Laurvig
                                            Bo Peter Hoegh Kroll


Management:                           Kai Vincens Frederik Ahlefeldt-Laurvig


Auditors:                                   Nielsen & Christensen


Accounting reference date:                  30th June


Registered Office:                          Bredgade 20 A,2
                                            1260 Copenhagen K
</TABLE>

                                      -27-


<PAGE>   31


                             D: IFX Deutschland GmbH

<TABLE>
<S>                                    <C>
Authorised share capital:                   DM 50,000.00


Issued share capital:                       DM 50,000.00


Directors:                                  Bo Peter Hoegh Kroll
                                            Kai Vincens Frederik Ahlefeldt-Laurvig
                                            Thorsten Brenneisen


Auditors:                                   Falke & Co GmbH


Accounting reference date:                  30th June


Registered Office:                          Frankfurt am Main
</TABLE>


                                      -28-


<PAGE>   32


                           E: IFX The Netherlands B.V

<TABLE>
<S>                                   <C>
Authorised share capital:                   2000 shares of NLG 100 each


Issued share capital:                       400 shares of NLG 100 each


Director:                                   Bo Peter Hoegh Kroll


Auditors:                                   Paardekooper & Hoffman


Accounting reference date:                  30th June


Registered Office:                          Hoogoorddleef 9 Kamer 219,
                                            1101BA Amsterdam
</TABLE>


                                      -29-


<PAGE>   33


                          F: IFX Finanzas Espania S.A.

<TABLE>
<S>                                   <C>
Authorised share capital:                   1,000 Shares of 10,000 pesatas each


Issued share capital:                       250 shares of 10,000 pesetas


Directors:                                  Bo Peter Hoegh Kroll
                                            Yvan Leon Bertha Verlaine


Auditors:                                   Gasso y Gia Auditores


Accounting reference date:                  30th June


Registered Office:                          161 Paseo de Castellana
                                            Madrid
</TABLE>


                                      -30-


<PAGE>   34


                            G: Intext IFX Plc Limited

<TABLE>
<S>                                   <C>
Authorised share capital:                   100,000 shares of 2 Singapore dollars each


Issued share capital:                       20,000 shares of 1 Singpore dollar each


Directors:                                  Elizabeth H Muljohardjo
                                            Bo Peter Hoegh Kroll


Secretary:                                  Juliet Ang


Auditors:                                   Sim Guan Seng & Co


Accounting reference date:                  30th June


Registered Office:                          15 Phillip Street
                                            08-00 Tan Ean Kiam Building
                                            Singapore 048694
</TABLE>

                                      -31-


<PAGE>   35


                              H: IFX France S.A.R.L

<TABLE>
<S>                                   <C>
Authorised share capital:                   100 Shares of 100 Euros each


Issued share capital:                       100 Shares of 100 Euros each


Director:                                   Yvan Leon Bertha Verlaine


Accounting reference date:                  [June 30th]


Registered Office:                          Paris (10th), 9 Rue du Chateau d'Eau
</TABLE>




                                      -32-


<PAGE>   36




                                   SCHEDULE 2

                   PART 1: OWNERSHIP OF SHARES OF THE COMPANY

<TABLE>
<S>                               <C>
C.I. Law Trustees Limited                 54, 176 Ordinary Shares

Warm Wool and Pile Limited          1,656 Ordinary Shares
</TABLE>


           PART 2 : OWNERSHIP OF SHARES OF THE SUBSIDIARIES AND INTEXT

<TABLE>
<S>                                          <C>
1.       IFX (UK) Limited
         ----------------

         IFX Group Plc                               2 Ordinary Shares


2.       IFX SCANDIVAVIA APS
         -------------------

         IFX Group Plc                               DKK 200,000.00


3.       IFX The NETHERLANDS B.V
         -----------------------

         IFX Infoforex Limited                       400 shares of NLG 100 each


4.       IFX FINANXAS ESPANIA S.A
         ------------------------

         C William Ahlefeldt-Laurvig                 10 shares of 10,000 pesetas each

         IFX Group Plc                               240 shares of 10,000 pesetas each


5.       IFX Deutschland GmbH
         --------------------

         IFX Infoforex limited                       DM 50,0000.00
</TABLE>

                                      -33-


<PAGE>   37


<TABLE>
<S>                                          <C>
6.       IFX France
         ----------

         IFX Group Plc                               100 shares of 100 Euros each


7.       Intext IFX Pte Limited
         ----------------------

         IFX Infoforex Ltd                           10,000 shares of 1 Singapore dollar each
         Intext Pte Ltd                              10,000 shares of 1 Singapore dollar each


8.       IFX Infoforex Limited
         ---------------------

         IFX Group Plc                               1 ordinary share of Pound Sterling 1 each
         IFX Group Plc and Gary Owen                 1 ordinary share of Pound Sterling 1 each
</TABLE>




                                      -34-


<PAGE>   38


                                   SCHEDULE 3

                                   WARRANTIES

A.      Constitution and Shares of Group Companies

B.      Accounts

C.      Business of the Group

D.      Directors, Employees and Employment matters

E.      Property

F.      Pensions

G.      Financial Facilities

H.      Intellectual Property

I.      Accuracy of Information

J.      Taxation

K.      Ownership of Shares



                                      -35-


<PAGE>   39


A.      CONSTITUTION AND SHARES OF GROUP COMPANIES

1.      Memorandum and Articles of the Company:

        The memorandum and articles of association of the Company in the form of
        the copies supplied to the Purchaser pursuant to the Disclosure Letter
        are complete and accurate in all respects and have embodied therein or
        annexed thereto copies of all resolutions and agreements required by law
        to be so attached; all amendments thereto (if any) were duly and
        properly made; and the Company has at all times carried on its business
        and affairs in all respects in accordance with its memorandum and
        articles of association and all such resolutions, agreements and
        amendments.

2.      Shares:

        There are no issued and outstanding shares, debentures or other
        securities of the Company other than the Shares All of the Shares are
        fully paid.

3.      Register of Members of the Company:

        The register of members of the Company contains true and accurate
        records of the shareholders from time to time of the Company and the
        Company has not been subject to any application for rectification of
        such register.

4.      Compliance of the Company:

        The Company has complied with the Companies Acts in all material
        respects and all such resolutions, returns and other documents required
        by the Companies Acts or any other legislation to be filed with or to be
        delivered to the Registrar of Companies or to any other authority
        whatsoever by the Company have been so filed or delivered and are true
        and accurate in all material respects. All charges in favour of the
        Company have (if appropriate) been registered in accordance with the
        provisions of Sections 395, 409, 410 and 424 Companies Act 1985.

5.      Financial Assistance:

        The Company has not at any time directly or indirectly provided any
        financial assistance for the purpose of the acquisition of shares in the
        Company or for the purpose of reducing or discharging any liability
        incurred in such an acquisition whether pursuant to Sections 155 and 156
        Companies Act 1985 or otherwise.

6.      Powers of Attorney:

        No Group Company has executed any power of attorney or conferred on any
        person other than its directors and employees any express or implied
        authority to enter into any transaction on behalf of or to bind such
        Group Company in any way.

                                      -36-


<PAGE>   40


7.      Subsidiaries and Other Operations:

(a)     No Group Company has any subsidiaries, owns any shares or stock in the
        capital of, or has any beneficial interest in, any other company or
        business organisation (other than the Subsidiaries and Intext), does not
        control or take part in the management of any other company or business
        organisation (other than the Subsidiaries and Intext) and no Group
        Company is a party to any agreement for the management or control of all
        or part of its business by any other person.

(b)     No Group Company has, nor has it ever had, any branch, office or
        permanent establishment outside the jurisdiction of its incorporation.

(c)     Each Subsidiary and so far as CILT is aware Intext is a company or
        corporation duly organised, validly existing and in good standing under
        the laws of the jurisdiction of its incorporation, with full power and
        authority to conduct its business in the manner and in the places where
        such business is conducted.

(d)     The copies of the constitutional documents of each of the Subsidiaries
        and Intext, are annexed to the Disclosure Letter and are correct and
        constitute the current version.

(e)     There are no issued and outstanding shares, debentures or other
        securities of any Group Company other than the shares held by the
        Company as set forth in the Disclosure Letter.

8.      Books and Records:

        All constituting documents, registers, certificates of incorporation,
        minute books, books of account and other corporate documents which each
        Group Company is required by applicable laws to maintain or have in its
        possession or under its control are so maintained, or are in the
        possession or under the control of the relevant Group Company, and, in
        all material respects, all such documents contain accurate records of
        the matters required by law to be recorded therein.

                                      -37-


<PAGE>   41


B.      ACCOUNTS

1.      The Accounts:

        The Accounts comply with all applicable laws, have been prepared in
        accordance with the consistent application of GAAP in the jurisdiction
        of the Group Company to which they relate and give a true and fair view
        of the assets and liabilities and of the state of affairs, financial
        position and results of the Group Company or Group Companies to which
        they relate as at the Accounts Date and its results for the period ended
        on that date.

2.      Management Accounts:

        The Management Accounts have been prepared in accordance with the same
        accounting principles and practices adopted for the Accounts and show a
        fair view of the assets and liabilities of the Company as the Management
        Accounts Date.

3.      Provision for debts:

        Reasonable provision has been made in the Accounts and Management
        Accounts in accordance with past practice and custom for bad and/or
        doubtful debts.

                                      -38-


<PAGE>   42


C.      BUSINESS OF THE GROUP

1.      Business since the Accounts Date:

        Since the Accounts Date:-

(a)     each Group Company has carried on its business in the ordinary course
        and, other than in the ordinary course of its business, no Group Company
        has acquired or disposed of or agreed to acquire or dispose of a
        substantial part of its assets, extended any credit, made any loan or
        made any other extraordinary payment;

(b)     no Group Company has declared or paid any dividend on any of its shares,
        effected any distribution of its assets or made any other payment to any
        of the Sellers or any connected person of any of the Sellers or any
        former shareholder of such Group Company;

(c)     no Group Company has entered into any agreement or arrangement with any
        customer to provide services on terms materially less favourable to the
        relevant Group Company than those on which such Group Company ordinarily
        contracts with clients;

(d)     no Group Company has released any debtor on terms that it pays less than
        the book value of its debt and no debt in excess of US$10,000 owing to
        any Group Company has been deferred, subordinated or written off or has
        proved to any extent irrecoverable;

(e)     each Group Company has paid its creditors within the times agreed with
        such creditors and does not have any debts outstanding which are overdue
        for payment by more than 90 days; and

(f)     no Group Company has paid, or is under any obligation to pay, any
        management charges.

2.      Business since the Management Accounts Date:

        Since the Management Accounts Date there has been no material adverse
        change in the financial position of the Company.

3.      Acquisition and Disposal of Assets:

        No Group Company has, since the Accounts Date, acquired or agreed to
        acquire any asset for a consideration which is higher than the market
        value at the time of acquisition and has not disposed of or agreed to
        dispose of any asset for a consideration which is lower than the market
        value at the time of disposal.

4.      Charges and Title to Assets:

(a)     No Group Company has created or agreed to create, and no Group Company
        is aware of, any Encumbrance over any part of its undertaking or assets.

                                      -39-


<PAGE>   43


(b)     Each Group Company owns all the assets identified as being owned by that
        Group Company in the Accounts and Management Accounts and all assets
        acquired before Completion; such assets comprise all assets required for
        the proper and efficient conduct of the business of the relevant Group
        Company; and all such assets are in the possession or direct control of
        the relevant Group Company.

(c)     No Group Company has acquired or agreed to acquire any material asset on
        terms that property in that asset does not pass until payment is made.

5.      Onerous obligations:

(a)     No Group Company is a party to any material leasing agreement, material
        hire purchase agreement, material credit or conditional sale agreement,
        material agreement for payment on deferred terms, or any other similar
        agreement.

(b)     No Group Company is a party to any material contract, transaction,
        arrangement, or liability that:-

(i)     is outside the ordinary course of business of the relevant Group
        Company;

(ii)    is for a term of more than six months or is unlikely to have been fully
        performed, in accordance with its terms, more than six months after the
        date on which it was entered into;

(iii)   is incapable of termination in accordance with its terms, by the
        relevant Group Company, on notice of 60 days or less;

(iv)    is likely to involve an aggregate outstanding expenditure by the
        relevant Group Company of more than Pound Sterling100,000 in any one
        calendar year; or

(v)     provides for any company or other person to provide management or
        administrative services to the relevant Group Company;

(vi)    involves payment by the relevant Group Company by reference to
        fluctuations in the index of retail prices; or

(vii)   involves, or is likely to involve, the supply of goods or services, the
        aggregate sales value of which will represent in excess of 5% of the
        turnover of the Group for the preceding financial year.

                                      -40-


<PAGE>   44


6.      Contracts:

(a)     No Group Company is in default under any material agreement which would
        result or is likely to result in damages in excess of US$50,000 to which
        it is a party and so far as CILT is aware there are no circumstances
        likely to give rise to such a default.

(b)     So far as CILT is aware, no party with whom any Group Company has
        entered into any agreement or arrangement is in default in any material
        respect and there are no circumstances likely to give rise to such a
        default.

7.      Guarantees etc.:

(a)     No Group Company has given to any person any guarantee, indemnity,
        warranty, or bond or incurred any other similar obligation or created
        any security for or in respect of liabilities, actual or contingent, of
        any person.

(b)     No person has given any guarantee, indemnity, warranty, or bond or
        incurred any similar obligation, or given any security with respect to,
        any liability, actual or contingent, of any Group Company.

8.      Options over shares etc.:

(a)     Since the Accounts Date no share or loan capital or other securities of
        any Group Company has been created or issued nor has any agreement been
        made to create or issue any share or loan capital of any Group Company.

(b)     There are no options or other agreements outstanding that call or give
        any person the right to call (whether or not subject to conditions) for
        the issue of any share or loan capital or other securities of any Group
        Company, and the Sellers are not under any obligation of any kind
        whatsoever whether actual or contingent to sell, charge or otherwise
        dispose of any of the Shares or the Intext Shares or the shares of any
        Subsidiary or any interest in the Shares, the Intext Shares or the
        shares of any Subsidiary to any other person.

9.      Trust Deeds etc.:

        No Group Company is in breach of the terms of any trust deed, debenture
        or other document governing any borrowings, and so far as CILT is aware
        no event has occurred which will or might give any person the right to
        call for the immediate or early repayment of any stock or other
        borrowings of any Group Company or to terminate any loan facilities
        placed at the disposal of any Group Company or which would or is likely
        to cause a demand for the immediate repayment of any borrowings of any
        Group Company which are repayable on demand.

10.     Litigation:

(a)     No Group Company is engaged in any litigation, arbitration, prosecution,
        other legal proceeding, or employee or labour disputes (whether as
        plaintiff, defendant,

                                      -41-


<PAGE>   45


        or third party); no Group Company has received notice of, or been
        threatened with, any such proceedings in respect of which the relevant
        Group Company is or might be liable to indemnify any other person; so
        far as CILT is aware there are no claims, facts, or events likely to
        give rise to any such proceedings.

(b)     No Group Company is involved in, or the subject of, any proceedings,
        investigation, audit or enquiries before or by any governmental or
        municipal board of enquiry or commission or any other administrative
        body (whether judicial, quasi-judicial, or otherwise) in which any
        unfavourable judgment or decision might adversely affect the business of
        the relevant Group Company or the value of any of its assets; and so far
        as CILT is aware there are no claims, facts or events that are likely to
        give rise to any such proceedings, investigation, audit or enquiries.

11.     Environmental Liability:

(a)     So far as CILT is aware each Group Company is now, and has at all times,
        conducted its business in compliance with all applicable environmental
        laws. No Group Company has received any written notice, claim or other
        communication alleging any actual or potential liability in respect of
        Environmental Matters.

(b)     So far as CILT is aware there are no circumstances, activities,
        practices or actions which have occurred or are occurring or have been
        or are in existence in the conduct of the business of any Group Company
        which may give rise to any liability under applicable Environmental
        Laws.

12.     Business name:

        No Group Company carries on, or has in the past 3 years carried on, any
        business under any name other than its corporate name.

13.     Effect of Sale of the Shares:

        No Group Company is a party to any agency, distribution, marketing,
        service (other than maintenance of office equipment) licensing,
        purchasing, selling or other similar agreement, or to any agreement,
        which is capable of termination without liability for compensation by
        any other person on a change in the management, control, or shareholding
        of any Group Company or by reason of the sale of the Shares or the
        Intext Shares under this Agreement. As a result of a change in the
        management, control, or, as appropriate, the shareholding of any Group
        Company or after Completion:-

(a)     so far as CILT is aware no supplier of a Group Company will cease, or is
        likely or intends to cease or be entitled to cease, supplying the
        relevant Group Company.

(b)     so far as CILT is aware no client of a Group Company will cease, or
        become entitled to cease or is likely or intends to cease, its
        relationship with the relevant Group Company or may substantially reduce
        its existing level of business with the relevant Group Company;

                                      -42-


<PAGE>   46


(c)     so far as CILT is aware no Group Company will be in default under any
        agreement or arrangement and no Group Company will lose any benefit,
        right or privilege which it currently enjoys and no liability or
        obligation of any Group Company will be increased;

(d)     so far as CILT is aware no person will be relieved of any obligation or
        become entitled to exercise any right in respect of any Group Company;
        and

(e)     as far as CILT is aware no senior employee of any Group Company will
        leave.

14.     Insurance:

(a)     Each Group Company has produced to the Purchaser and listed and
        summarised in the Disclosure Letter all insurance policies in effect in
        relation to its business and assets, and all such policies are in full
        force and effect and not avoidable.

(b)     All premiums for policies of insurance maintained by any Group Company
        due to be paid on or before Completion have been paid.

(c)     No Group Company has filed a claim under any insurance policy, and so
        far as CILT is aware there are no circumstances likely to give rise to a
        claim, to the insurers avoiding liability under a policy, or to an
        increase in premiums.

15.     Capital Commitments:

        Since the Accounts Date no Group Company has made or agreed to make any
        capital expenditure, or incurred or agreed to incur any capital
        commitments or disposed of or realised any capital assets or any
        interest in capital assets.

16.     Compliance with Statutory Provisions:

(a)     The business of each Group Company has at all times been carried on
        within the terms of its memorandum and articles of association, charter,
        by-laws or other constitutional documents.

(b)     Each Group Company has conducted and is conducting its business in
        accordance with all applicable laws and regulations whether of its
        jurisdiction of incorporation or elsewhere the failure to comply with
        which would have a material adverse effect on the Group.

(c)     No Group Company has received notice that it or its officers, agents or
        employees (during the course of their duties in relation to it) have
        committed or omitted to do any act or thing the commission or omission
        of which is or could be in contravention of any act, order, regulation
        or the like (whether in the jurisdiction of its incorporation or
        otherwise) giving rise to any fine, penalty, default proceedings or
        other liability on its part.

                                      -43-


<PAGE>   47


17.     Licences:

(a)     Each Group Company has all licences and permissions authorities and
        consents required for the carrying on of its business effectively in the
        places and in the manner in which such businesses are now carried on and
        there is no subsisting breach by a Group Company of the terms or
        conditions of any such licences, permissions, authorities or consents
        which would have a material adverse effect on the Group.

(b)     There are no served or, so far as CILT is aware, threatened proceedings
        or any other circumstances involving or related to any Group Company
        that might lead to the suspension, revocation, or material change or
        modification of such licences or permissions and there is no other
        reason why any of them should be suspended, threatened or revoked.

18.     Grants:

        No Group Company has applied for or received any financial assistance
        from any supranational, national, or local authority or governmental
        agency.

19.     Relationship with directors:

(a)     After Completion, no Group Company will have any liability to or any
        contractual or other arrangements with any of the Sellers or with any
        current director of a Group Company other than pursuant to this
        Agreement or the Deed of Covenant or the Tax Deed, the service contract
        and option arrangements with Bo Kroll, the service contract of Yvan
        Verlaine and the consultancy agreement with Warm Wool and Pile Limited
        or to any spouse or associated company or connected person of any of
        them or any partnership in which any such person or company is a
        partner.

(b)     After Completion, no director of a Group Company, nor any spouse or
        associated company or connected person of any of the Sellers or any
        director of a Group Company, or any partnership in which any such person
        or company is a partner will owe any money to any Group Company.

20.     Maintenance of Assets:

(a)     Maintenance contacts are in full force and effect in respect of all
        assets of any Group Company which it is normal and prudent to have
        maintained by independent or specialist contractors and in respect of
        all assets which any Group Company is obliged to maintain or repair
        under any leasing or similar agreement.

(b)     All assets of any Group Company have been regularly maintained to a good
        technical standard and in accordance with safety regulations normally
        observed in relation to assets of that description and in accordance
        with the terms and conditions of any applicable leasing or similar
        agreement.

                                      -44-


<PAGE>   48


21.     Accounts Payable:

        No account payable of any Group Company is unpaid and outstanding beyond
        the earlier of the date (if any) on which it falls due to be paid
        contractually or the date on which it falls to be paid in accordance
        with the ordinary course of dealing between the relevant Group Company
        and the supplier in question.

22.     Accounts Receivable:

(a)     There are no debts owing to any Group Company other than trade debts
        incurred in the ordinary and usual course of business (none of which
        exceeds Pound Sterling50,000 and which do not exceed Pound
        Sterling400,000 in aggregate).

(b)     No part of the amounts included in the Accounts, or subsequently
        recorded in the books of any Group Company, as owing by any debtor is
        overdue by more than twelve weeks, or has been released on terms that
        any debtor pays less than the full book value of the debt or has been
        written off or has proved to any extent to be irrecoverable or is now
        regarded by the relevant Group Company as irrecoverable in whole or in
        part.

23.     Joint Ventures and Partnerships:

        No Group Company is, or has agreed to become, a member of any joint
        venture, consortium, partnership, other unincorporated association,
        shareholders' agreement or similar arrangement; and no Group Company is,
        nor has agreed to become, a party to any agreement or arrangement for
        sharing commission or other income.

24.     Reuters Agreements:

        Each Group Company has complied in all material respects with its
        obligations under any data feed agreements with Reuters to which it is a
        party and has incorporated into its standard subscriber agreements all
        terms required to be incorporated therein in accordance with such data
        feed agreements.

                                      -45-


<PAGE>   49


D.      DIRECTORS, EMPLOYEES AND EMPLOYMENT MATTERS

1.      The particulars of directors and officers of each Group Company shown in
        Schedule 1 are true and accurate and no person not named in Schedule 1
        is a director or officer of any Group Company.

2.      The Disclosure Letter contains accurate details of all officers,
        employees, consultants and representatives of each Group Company,
        including all remuneration payable and all other benefits provided or
        which each Group Company is bound to provide (whether now or in the
        future) to each officer, employee, consultant or representative of such
        Group Company (or to any other person with respect to the services of
        any such officer, employee, consultant or representative) and all profit
        sharing, share option incentive, bonus arrangements and medical,
        hospitalisation, disability, or other employee benefits, including
        payments in connection with termination of any office, employment or
        contract, to which such Group Company is a party, and including
        discretionary arrangements or benefits and sets out details of all
        standard forms of employment or consultancy or service agreements and
        staff handbooks.

3.      The terms of employment or engagement of all employees, agents,
        consultants, independent contractors, representatives and professional
        advisers of each Group Company permit the relevant Group Company to
        terminate them on not more than three months' notice given at any time
        without liability for payment of compensation or damages (except for
        statutory indemnities or compensation), and no Group Company has entered
        into any agreement or arrangement for the management of all or part of
        its business other than with its directors or employees.

4.      No past or present director, officer, employee, consultant, independent
        contractor or representative of any Group Company has any claim,
        including a claim for redundancy payment, against such Group Company for
        loss of office or arising out of the termination of his office or
        employment or contract, there is no event that might give rise to any
        such claim and there is no outstanding liability in respect of any such
        claim.

5.      No industrial action involving the workforce of any Group Company,
        official or unofficial, is now occurring or threatened; so far as CILT
        is aware no event has occurred which is likely to give rise to such
        action; and no Group Company has been engaged or involved in any dispute
        with any employee or any labour troubles, whether directly involving the
        relevant Group Company or not.

6.      Each Group Company has fully paid to date all contributions to maintain
        any medical, hospitalisation, disability or other employee benefit plan,
        complied with its obligations to maintain those plans or arrangements,
        and has not received any notice of an intent or threat to terminate or
        impair the plans or arrangements, and so far as CILT is aware there are
        no circumstances indicating that the plans or arrangements are not valid
        and in full force and effect.

                                      -46-


<PAGE>   50


7.      No promise or assurance of any kind, whether legally binding or not, has
        been made to any officer or employee of any Group Company or any
        consultant, independent contractor or representative of any Group
        Company with respect to any adjustment in his or her remuneration,
        emoluments or benefits of any kind from those described in the
        Disclosure Letter, and no Group Company has made any gratuitous payment
        or given any benefit or promised to do so in connection with the actual
        or proposed termination or suspension of employment or variation of any
        contract of employment or contract for services of any present or former
        director or employee.

8.      No person whose services are devoted wholly or mainly to the business of
        any Group Company is employed or engaged under any consultancy,
        contractor or other similar arrangement.

9.      No present director, officer or employee of any Group Company has given
        or received notice terminating his employment and completion of this
        Agreement will not entitle any director, officer or employee of any
        Group Company to terminate his employment or trigger any entitlement to
        any payment.

10.     Each Group Company has in relation to each of its directors, employees,
        consultants and representatives complied with all applicable laws, codes
        of conduct, guidelines, terms and conditions of employment or
        engagement, orders and awards relevant to their terms and conditions of
        service.

11.     There are no amounts owing to any present or former director, officer,
        employee, consultant or representative of any Group Company other than
        one month's arrears of remuneration accrued or due or for reimbursement
        of business expenses incurred within a period of three months preceding
        the date of this Agreement and no moneys or benefits other than in
        respect of remuneration or emoluments of employment are payable to or
        for the benefit of any present or former director, officer, employee,
        consultant or representative of any Group Company.

                                      -47-


<PAGE>   51


E.      THE PROPERTIES

1.      The Properties comprise all the properties owned, occupied or otherwise
        used in connection with its business by any Group Company, and are
        occupied, owned or used by right of ownership or under lease or licence,
        the terms of which permit the occupation or use.

2.      The information contained in Schedule 5 is complete and accurate in all
        respects.

3.      So far as CILT is aware, the buildings and other structures on the
        Properties are in good and substantial repair and fit for the purposes
        for which they are used.

4.      The leases and licences listed in Schedule 5 are the only agreements by
        which any Group Company has entered into obligations and/or has any
        financial or other entitlement relating to any real property.

5.      Each Group Company has paid the rent and observed and performed the
        obligations on the part of the tenant and the conditions contained in
        the lease under which any Property leased by it is held, and the last
        demand (or receipts for rent if issued) were unqualified and the leases
        are valid and in full force.

6.      All licences, consents and approvals required from the landlords and any
        superior landlords under the leases of any Property have been obtained
        and the obligations on the part of the tenant contained in the licences,
        consents and approvals have been duly performed and observed.

7.      There are no rent reviews under the leases of any of the Properties in
        progress.

8.      No obligation necessary to comply with any notice or other requirement
        given by the landlord under the lease of any Property is outstanding and
        unobserved or unperformed.

9.      There is no material obligation to reinstate any Property by removing or
        dismantling any alteration made to it by a Group Company or any
        predecessor in title to a Group Company.

                                      -48-


<PAGE>   52


F.      PENSIONS

1.      No Group Company operates, makes payments to or for, or has any
        obligation related to, a pension arrangement or scheme.

2.      There is no claim for and no Group Company is under any legal or moral
        obligation to pay any pension or make any other payment upon death,
        retirement, or disability to or on behalf of any person who is now or
        has been an employee, consultant, independent contractor or agent of a
        Group Company and is not a party to any scheme or arrangement having as
        its purpose or one of its purposes the making of payments or the
        provision of such benefits. No such pension or payment is now being paid
        voluntarily and no ex gratia payments have been or are proposed to be
        made by any Group Company to any current or former director, employee,
        consultant, independent contractor or representative, or their
        dependants or relatives.

3.      No promise or assurance has been made to any present or former director,
        employee, consultant, independent contractor or representative of any
        Group Company that any pension rights or entitlements would be
        continued, introduced, increased or improved.




                                      -49-


<PAGE>   53


G.      FINANCIAL FACILITIES

1.      Borrowings:

        The aggregate of all amounts borrowed by any Group Company (from
        whatever source) does not exceed any limitation on its borrowing
        contained in its constitutional documents, any debenture, or other
        instrument.

2.      Continuance of Facilities:

        Full and accurate details of each overdraft, loan, or other financial
        facility outstanding or available to each Group Company and an accurate
        copy of each such overdraft, loan, or other financial facility has been
        provided to the Purchaser. So far as CILT is aware no Group Company has
        done anything to affect adversely, impair, or prejudice the continuance
        of any such facility in full force and effect and in particular no Group
        Company has received notice from any lenders of money requiring
        repayment or intimating the enforcement of any security and so far as
        CILT is aware there are no current circumstances in existence as at the
        date of this Agreement that would reasonably be expected to give rise to
        any such notice and no Group Company has repaid or become liable to
        repay any loan or indebtedness in advance of its stated maturity date;
        and

3.      Bank Accounts:

        A statement of the credit or debit balances of each bank account of each
        Group Company as at close of business on the business day immediately
        preceding the date of this Agreement has been supplied to the Purchaser.
        No Group Company has any other bank or deposit accounts (whether in
        credit or overdrawn) not included in the statement. Since the statement
        there have been no payments out of any such accounts except for routine
        payments.




                                      -50-


<PAGE>   54


H.      INTELLECTUAL PROPERTY RIGHTS

1.      A Group Company is the sole legal and beneficial owner free from
        Encumbrances of the Listed Intellectual Property and (where such Listed
        Intellectual Property is registered) the registered proprietor thereof
        and owns no other registered or material unregistered Intellectual
        Property.

2.      Save as may appear from the Listed Intellectual Property Agreements no
        person has been authorised to make any use whatsoever of any
        Intellectual Property owned by any Group Company.

3.      Save as may appear from the Listed Intellectual Property Agreements a
        Group Company owns all the material Intellectual Property that any Group
        Company uses.

4.      All the Intellectual Property rights owned or used by any Group Company
        are valid and enforceable and nothing has been done, omitted or
        permitted whereby any of them has ceased or might cease to be valid and
        enforceable. So far as CILT is aware none of the processes or products
        of any Group Company infringes any Intellectual Property of any other
        person in circumstances which might entitle that person to make a claim
        against the relevant Group Company.

5.      So far as CILT is aware, none of the Listed Intellectual Property is the
        subject of any claims or proceedings for opposition or contested
        ownership.

6.      CILT is not aware of any infringement of the Listed Intellectual
        Property or of any rights relating to it by any person.

7.      There are no outstanding claims against any Group Company for
        infringement of any Intellectual Property used (or which have been used)
        by any Group Company and no such claims have been settled by the giving
        of any undertakings which remain in force. No Group Company has received
        any actual or threatened claim that any of the Listed Intellectual
        Property rights is invalid nor are the Sellers aware of any reason why
        any granted patents included in the Listed Intellectual Property should
        be amended.

8.      Confidential information and know-how used by any Group Company is kept
        confidential. No Group Company has disclosed (except in the ordinary
        course of its business or under the Listed Intellectual Property
        Agreements) any of its know-how, trade secrets or lists of customers to
        any other person.

9.      Such of the Listed Intellectual Property as is registered has been
        maintained and all application and renewal fees for such registered
        Intellectual Property have been duly paid on time.

10.     The Listed Intellectual Property Agreements are all the material
        Intellectual Property agreements to which any Group Company is a party;
        each of them is valid and binding; and no Group Company is in material
        breach of any of the provisions of

                                      -51-


<PAGE>   55
        such agreements.

11.     All persons retained or employed by any Group Company who, in the
        course of their work for such Group Company will or might reasonably
        be expected to bring into existence Intellectual Property or things
        protected by Intellectual Property are, so far as is reasonably
        practicable, individually bound by agreements with the relevant Group
        Company whereby all Intellectual Property which such persons may bring
        into existence during their work for a Group Company vests in the
        relevant Group Company. All such agreements contain terms which, so
        far as is reasonably practicable, prevent such persons disclosing any
        confidential information about the relevant Group Company and its
        business.

12.     None of the Intellectual Property owned by any Group Company is subject
        to compulsory licensing or the granting of any licences of right nor, so
        far as CILT is aware, will it become so by operation of law.

13.     Data Protection:

        Each Group Company is registered and has otherwise complied in all
        material respects with the requirements of all applicable data
        protection legislation.

14.     Marketing and Other Promotional Material:

        So far as the CILT is aware, all current advertising, marketing and
        sales promotions by any Group Company comply with all applicable laws,
        regulations, codes of practice and self-regulatory schemes. No Group
        Company has been disciplined under any law, regulation, scheme or code
        in respect of any such advertising, marketing or sales promotion; no
        complaint has been made against it in respect of such advertising,
        marketing or sales promotion; and there are no outstanding complaints or
        disciplinary proceedings against any Group Company in respect of such
        advertising, marketing or sales promotion.

15.     Identification and ownership of Information Technology:

   a.   Particulars of all material IT Systems and all material IT Contracts are
        disclosed in the Disclosure Letter.

   b.   Save as disclosed in the Disclosure Letter, all material IT Systems are
        controlled by the Group, and are not wholly or partly dependent on any
        facilities or services not under the exclusive control of a Group
        Company.

   c.   So far as CILT is aware, all the IT Contracts are valid and binding.
        None of the IT Contracts has been the subject of any material breach or
        default, or is liable to be terminated or otherwise adversely affected
        by the transaction contemplated by this Agreement.

   d.   The Group has in its possession or in its control the source code of all
        Software owned by any Group Company.

                                      -52-


<PAGE>   56


16.     Computer operation and maintenance:

   a.   All IT Services are being and have been provided in accordance with all
        applicable specifications.

   b.   The Group has full and unrestricted access to and use of the IT Systems,
        and no third party agreements or consents are required to enable the
        Group to continue such access and use following completion of the
        transaction contemplated by this Agreement.

   c.   So far as CILT is aware no person has had unauthorised access to the IT
        Systems or any data stored thereon. Each Group Company operates a
        documented procedure, and has taken reasonable steps to avoid infections
        by viruses and unauthorised access.

   d.   All material data processed using the IT Systems and/or the IT Services
        has been regularly archived in hard copy form. Such hard copies have
        been properly stored and catalogued.

   e.   Each Group Company has taken reasonable steps to ensure that its
        business can continue in the event of a failure of the IT Systems
        (whether due to natural disaster, power failure or otherwise).

   f.   The Group has sufficient technically competent and trained employees to
        ensure proper handling, operation, monitoring and use of the IT Systems.




                                      -53-


<PAGE>   57


I.      ACCURACY OF INFORMATION

1.      All information contained in this Agreement and the Disclosure Letter
        was when given and is now complete and accurate in all material respects
        and no matter or fact has not been disclosed the omission of which
        renders any such information materially untrue or misleading.




                                      -54-


<PAGE>   58


J.      TAXATION

PART 1 -TAXATION OF THE GROUP

1.      Tax Returns, etc.:

        Each Group Company has filed all Tax returns which are required to be
        filed in respect of such Group Company and has paid all Tax which has
        become due pursuant to such Tax returns or pursuant to any assessment
        which has become payable; all such Tax returns are complete and accurate
        in all material respects and disclose all Taxes required to be paid by
        the relevant Group Company.

        During the last six years no Group Company has received notice of any
        action, suit, non-routine investigation, audit, claim, lien or
        assessment pending or proposed or threatened with respect to Tax, and so
        far as CILT is aware no basis exists therefor and neither the Sellers
        nor any Group Company have waived or been requested to waive any statute
        of limitations in respect of Tax associated with such Group Company.

2.      Provisions:

        The Accounts make full provision or reserve for all Tax for which any
        Group Company is accountable at the Accounts Date whether or not any
        Group Company has or might have any right of reimbursement against any
        other person.

        Proper provision has been made and shown in the Accounts for deferred
        Tax in accordance with GAAP.

3.      Employees:

(a)     During the last six years each Group Company has properly deducted Tax,
        including social security and other payroll Tax, as required by
        applicable law from all payments to, or to be treated as made to, or
        benefits provided for, or to be treated as provided for, employees or
        ex-employees of such Group Company.

(b)     During the last six years each Group Company has duly accounted to the
        Tax Authorities for sums so deducted (or has made proper reserve or
        provision for such payments in the Accounts); and each Group Company has
        materially complied with all its reporting obligations to the Tax
        Authorities in connection with any such payments made or benefits
        provided.

4.      Sales at undervalue/overvalue and Deductions:

(a)     All of the transactions of each Group Company have been entered into on
        an arm's length basis, and the consideration charged or received or paid
        by the relevant Group Company on all transactions entered into by it has
        been equal to the consideration that might have been expected to be
        charged received or paid (as appropriate) between independent persons
        dealing at arm's length.

                                      -55-


<PAGE>   59


(b)     So far as CILT is aware, other than items identified in the Taxation
        Computations of any Group Company for the periods ending on the Accounts
        Date which may recur in subsequent periods no material payments paid or
        payable by any Group Company or which any Group Company is under an
        existing obligation to pay in the future are or may be disallowed as
        deductions.

5.      Payment of Tax:

        Each Group Company has duly and punctually paid, or will prior to
        Completion so pay, all Tax to the extent that such Group Company is
        liable to pay such Tax prior to Completion and is not liable to pay any
        penalty or interest in connection with any such Tax.

6.      Sales at Book Value:

        No chargeable gain or profit would arise if any assets of any Group
        Company (other than trading stock) were to be realised for a
        consideration equal to the amount of the book value thereof as shown or
        included in the Accounts.

7.      Tax Schemes; Compliance:

        No Group Company has entered into or been a party to or otherwise
        involved in any scheme or arrangement designed wholly or partly for the
        purpose of avoiding, evading or deferring Tax which is contrary to law.

8.      Value Added Tax:

        Each Group Company:

(a)     is a registered taxable person for the purpose of applicable value added
        tax regulations [and has not at any time been treated as a member of a
        group of companies for such purpose and has not made any application to
        be so treated] and no circumstances exist whereby the Company would or
        might become liable for value added tax as an agent;

(b)     has complied in all material respects with the requirements and
        provisions of all applicable value added tax regulations and has made
        and maintained, and will pending Completion make and maintain, accurate
        and up to date records, invoices, accounts and other documents required
        by or necessary for the purposes of all applicable value added tax
        regulations and the Company has at all times without material delay paid
        and made all payments and returns required under all applicable value
        added tax regulations;

(c)     has not made any exempt supplies in consequence of which it is or will
        be unable to obtain credit for all input tax paid by it during any value
        added tax period ending after the Accounts Date.

                                      -56-


<PAGE>   60


   PART II - TAXATION OF THE COMPANY-

      INFORMATION AND RETURNS

   9.   Disclosures:

        All statements and disclosures made to any Tax Authority for Tax
        purposes were when made and remain complete and accurate in all material
        respects.

   10.  Clearances:

        No action has been taken by the Company in respect of which any consent
        or clearance from any Tax Authority was required save in circumstances
        where such consent or clearance was validly obtained, and where any
        conditions attaching thereto were and will, immediately following
        Completion, continue to be met.

   11.  Claims and Elections:

        The documents relating to Tax disclosed in the Disclosure Letter contain
        full particulars of all matters relating to Tax in respect of which the
        Company is or at Completion will be entitled:

   (a)  to make any claim (including a supplementary claim), disclaimer or
        election for relief under any taxation statute;

   (b)  to appeal against any assessment or determination relating to Tax;

   (c)  to apply for a postponement of Tax.

PROVISION FOR AND PAYMENT OF TAX

   12.  Payment of Tax:

        The Company is not liable, nor has it within six (6) years prior to the
        date hereof been liable, to pay any penalty or interest in connection
        with any such Tax.

   13.  Secondary Liability:

        No transaction or event has occurred in consequence of which the Company
        is or may be held liable for any Tax or deprived of Relief otherwise
        available to it or may otherwise be held liable for or to indemnify any
        person in respect of any Tax for which some other company or person was
        primarily liable (whether by reason of any such other company being or
        having been a member of the same group of companies or otherwise).

                                      -57-


<PAGE>   61


CORPORATION TAX

   14.  Sales at undervalue/overvalue and Deductions:

        No notice or enquiry pursuant to Section 770A T.A. has been made in
        connection with any transactions of the Company and there are no facts
        or circumstances likely to give rise to an amendment of the Company's
        return or any discovery assessment or discovery determination pursuant
        to Section 770A T.A.

CAPITAL ASSETS

   15.  Capital Allowances:

   (a)  No balancing charge in respect of any capital allowances claimed or
        given would arise if any assets of the Company were to be realised for a
        consideration equal to the amount of the book value thereof as shown or
        included in the Accounts.

   (b)  All necessary conditions for all capital allowances (as defined in
        Section 832(1) T.A.) claimed by the Company were at all material times
        satisfied and remain satisfied and the Company has not since the
        Accounts Date become liable for any balancing charge.

   16.  Finance Leases:

        The Company is not a lessee under a lease to which the provisions of
        Schedule 12 F.A. 1997 apply or could apply.

   17.  Investment Grants:

        The Company has not received any investment grant or similar payment or
        allowance receivable by virtue of any statute.

   18.  Short-life Assets:

        The Company has not made any election under Section 37 Capital
        Allowances Act 1990 nor is it taken to have made such an election under
        Section 37(8)(c) of that Act.

   19.  Deductions:

        All rents, annual payments and other sums of an income nature paid or
        payable by the Company since the Accounts Date or which the Company is
        under an obligation to pay in the future are wholly allowable as
        deductions or charges in computing income for the purposes of
        corporation tax.

   20.  Loan Relationships:

        All interest, discounts or premiums payable by the Company in respect of
        its loan relationships within the meaning of Chapter II Part IV F.A.
        1996 are capable of

                                      -58-


<PAGE>   62


        being brought into account as a debit for the purposes of that chapter
        as and to the extent that they are from time to time recognised in the
        Company's accounts (assuming that the accounting policies and methods
        adopted for the purpose of the accounts continue to be so adopted).

DISTRIBUTIONS

   21.  Repayments of Share Capital:

   (a)  The Company has not at any time since its incorporation repaid or agreed
        to repay or redeemed or agreed to redeem or purchased or agreed to
        purchase (or made any contingent purchase contract within the meaning of
        Section 165 Companies Act 1985) in respect of any of its issued share
        capital or any class thereof. Further, the Company has not (save as
        disclosed in the Disclosure Letter) after 6th April 1965 capitalised or
        agreed to capitalise in the form of shares, debentures or other
        securities, or in paying up amounts unpaid on any shares debentures or
        other securities, any profits or reserves of any class or description or
        passed, or agreed to procure or seek the passing of, any resolution to
        do so.

   (b)  The Company has not made (and will not be deemed to have made) any
        distribution within the meaning of Sections 209, 210 and 211 T.A. since
        5th April 1965 except dividends properly authorised and shown in its
        Accounts nor is the Company bound to make any such distribution.

   22.  Capital Distributions:

        The Company has not received any capital distribution to which the
        provisions of Section 189 T.C.G.A. could apply.

CHARGEABLE GAINS

   23.  Value shifting:

        The Company has not been involved in any scheme or effected any
        arrangements whereby the value of any asset has been or will be reduced
        such that Sections 29 and/or 30 T.C.G.A might be applicable.

   24.  Valuation of Assets:

        The Company has not disposed of or acquired any asset so that Section 17
        T.C.G.A. might apply to restrict the consideration deemed to be given on
        such disposal or acquisition.

   25.  Chargeable Debts:

        No gains chargeable to corporation tax on chargeable gains will accrue
        to the Company on the disposal of any debt owing to the Company.

                                      -59-


<PAGE>   63


   26.  Reconstructions:

        The Company has not been involved in any share for share exchange or any
        scheme of reconstruction or amalgamation such as are mentioned in
        Sections 136 or 139 T.C.G.A. under which shares or debentures have been
        or will be issued or assets have been or will be transferred.

   27.  Depreciatory transactions:

        No loss which has arisen or which may hereafter arise on a disposal by
        the Company of shares in or securities of any company is liable to be
        reduced by virtue of the application of Section 176 T.C.G.A.
        (transactions in a group) or Section 177 T.C.G.A. (dividend stripping).

ANTI-AVOIDANCE PROVISIONS

   28.  Transactions in Securities:

        The Company has not:-

   (a)  become liable for Tax; or

   (b)  received and will not receive or be the subject of or be adversely
        affected by any Claim for Tax; arising under or imposed by or resulting
        from the operation of Sections 703-709, 776-778, 729-746, (whether alone
        or in conjunction with any other provisions of any taxation statutes)
        and which wholly or partly results or arises from or is computed by
        reference to circumstances existing or events occurring at any time on
        or before the date hereof, whether alone or in conjunction with other
        circumstances, arising before or after Completion.

   29.  Sale and lease back of land:

        Since its incorporation, the Company has not entered into any
        transaction as is mentioned in Sections 34-37 or Section 780 T.A.

   30.  Close Company:

        The Company has at all times been a close company as defined by Sections
        414 and 415 T.A. but has not in any accounting period beginning after 31
        March 1989 been a close investment-holding company as defined in Section
        13A T.A. No distribution within the meaning of Section 418 T.A. has been
        made by the Company; since the Accounts Date any outstanding loans or
        advances made or agreed to be made by the Company within Sections 419
        and 420 or 422 T.A. have been disclosed in the Disclosure Letter and the
        Company has not released or written off or agreed to release or write
        off the whole or any part of any such loans or advances.

                                      -60-


<PAGE>   64


GROUP OF COMPANIES

   31.  Group Relief:

   (a)  Neither the Company nor any of the Subsidiaries has made or agreed to
        make a surrender of group relief under Pt X, Chap IV T.A. or a surrender
        of any amount of surplus advance corporation tax under T.A. to any
        company other than the Company or a Subsidiary. The Company is not
        liable to make a payment for group relief or for the surrender of
        advance corporation tax to any company other than the Company or a
        Subsidiary. The Company has not received a payment for group relief
        which may be liable to be refunded in whole or in part other than the
        Company or a Subsidiary. The Company has not agreed to surrender any
        right to receive a Tax refund under Section 102 F.A. 1989.

   (b)  The Company does not own an asset which was acquired within the last six
        years from another company, which was, at the time, a member of the same
        group of companies (as defined in Section 170 T.C.G.A.) as the Company,
        and which owned that asset otherwise than as trading stock within
        Section 173 T.C.G.A.

   (c)  The execution or completion of this Agreement will not result in any
        profit or gain being deemed to accrue to the Company for Tax purposes,
        whether under Section 179 T.C.G.A. or otherwise.

INHERITANCE TAX

   32.  Gifts:

   (a)  The Company is not, and will not become, liable to be assessed to
        inheritance tax as donor or donee of any gift or transferor or
        transferee of value (actual or deemed), nor as a result of any
        disposition, chargeable transfer or transfer of value (actual or deemed)
        made by, or deemed to be made by, any other person.

   (b)  The Company has not been a party to associated operations in relation to
        a transfer of value within the meaning of Section 268 I.T.A.

   (c)  No asset owned by the Company is subject to any sale, mortgage or charge
        by virtue of Section 212 I.T.A.

   33.  Inland Revenue Charge:

        There is no unsatisfied liability to inheritance tax attached or
        attributable to the Shares or any asset of the Company, and in
        consequence no person has the power to raise the amount of such Tax by
        sale or mortgage of, or by a terminable charge on, any of the Shares or
        assets of the Company as mentioned in Section 212 I.T.A. and none of the
        Shares or assets of the Company are subject to an Inland Revenue Charge
        within Section 237 I.T.A.

                                      -61-


<PAGE>   65


VALUE ADDED TAX

34.     The Company is and has at all times within the last six years been a
        fully taxable person within the meaning of V.A.T.A. and regulations
        thereunder.

35.     The Company has not waived exemption from VAT in respect of any of the
        Properties under Paragraph 2, Schedule 10, V.A.T.A.

36.     The Disclosure Letter contains full particulars of all claims which have
        been, or could be, made by the Company under Sections 78 or 79 V.A.T.A.
        There are no circumstances by virtue of which an assessment under
        Section 78A V.A.T.A. has been, or could be, made on the Company.

37.     So far as CILT is aware there are no existing circumstances by virtue of
        which any refund of Tax obtained or claimed under Section 36 V.A.T.A.
        may be required to be repaid. There are no circumstances by virtue of
        which there could be a clawback of input tax from the Company under
        Section 36(4A) V.A.T.A.

STAMP DUTY AND CAPITAL DUTY

38.     All documents in the enforcement of which the Company is or may be
        interested which are in the possession or control of the Company have
        been duly stamped; and since the Accounts Date the Company has not been
        a party to any transaction whereby the Company was or is liable to stamp
        duty reserve tax.

39.     The Company has not within the past two years made a claim for Relief or
        exemption under Section 42 F.A. 1930.




                                      -62-


<PAGE>   66


K.      OWNERSHIP OF SHARES

1.      CILT is the registered owner and the legal owner of the Shares listed
        with CILT's name in Part 1 of Schedule 2 and has good and valid title to
        such shares free and clear of all Encumbrances. The Shares constitute
        all of the issued share capital of the Company.

2.      Except for this Agreement, none of the Shares registered in the name of
        its CILT are subject to any voting trust, agreement, option or other
        contract, agreement, arrangement, commitment, or understanding, actual
        or contingent, restricting or otherwise relating to the voting, dividend
        rights, sale, or disposition of such Shares.

3.      The Company, or the Subsidiary so identified in Part 2 of Schedule 2, is
        the registered owner of the shares of each Subsidiary and Intext as set
        out in Part 2 of Schedule 2 and has good and valid title to such shares
        free and clear of all Encumbrances. Such shares of each Subsidiary
        constitute all of the issued share capital of such Subsidiary. Such
        shares of Intext constitute not more than or less than 50% of the share
        capital of, and carries not more or less than 50% of the voting rights
        of, Intext.

4.      None of the shares of the Subsidiaries nor of Intext are subject to any
        voting trust, agreement, option or other contract, agreement,
        arrangement, commitment or understanding, actual or contingent,
        restricting or otherwise relating to the voting, dividend rights, sale
        or disposition of such shares.

5.      This Agreement is a valid and binding obligation of CILT, enforceable
        against CILT in accordance with its terms.

6.      The execution of this Agreement does not, the consummation of the
        transactions effected by this Agreement do not, and compliance with the
        terms of this Agreement will not violate, conflict with, require consent
        under or cause a default under any provision of any agreement, contract,
        arrangement, judgment, order, decree, statute, or law applicable to CILT
        or its property or assets.


                                      -63-


<PAGE>   67


                                   SCHEDULE 4

                                    TAX DEED

THIS DEED OF COVENANT is made the  day of                     April 2000

BETWEEN:-

(1)     C.I. Law Trustees Limited of Westaway Chambers, 39 Don Street, St.
        Helier, Jersey (the "Covenantor"); and

(2)     Aether Systems, Inc. (the "Purchaser").

WHEREAS this Deed of Covenant is entered into pursuant to the provisions of an
        Agreement (the "Share Purchase Agreement") made on the [ ] day of [ ]
        2000 pursuant to which the Purchaser agreed to purchase the whole of the
        share capital of IFX Group plc, a public limited company incorporated in
        England and Wales under the Companies Acts under number 03224875 ("the
        Company")

NOW THIS DEED WITNESSES as follows:-

1.      Interpretation:

        1.1.    Subject to Clause 1.2 and unless the context otherwise
                indicates, words, expressions and abbreviations defined in the
                Share Purchase Agreement shall have the same meanings in this
                Deed and any provisions of the Share Purchase Agreement
                concerning matters of construction or interpretation shall
                mutatis mutandis apply to this Deed.

        1.2.    The following words, expressions and abbreviations used in
                this Deed shall, unless the context otherwise requires, have
                the following







        meanings:-



<TABLE>
<S>                          <C>
        "Claim for Tax"         any claim, assessment, demand, notice or other
                                document issued by or on behalf of any authority
                                or body whatsoever and of whatever country which
                                claims payment of Tax or seeks to or may deprive
                                any Group Company of any Relief or any right to
                                repayment of Tax which would otherwise have been
                                available;

        "Event"                 every event, act, omission, default, occurrence,
                                circumstance, transaction, dealing or
                                arrangement of any kind whatsoever done, or
                                omitted to be done, by a Group Company or which
                                in
</TABLE>

                                      -64-


<PAGE>   68


<TABLE>
<S>                           <C>
                                any way concerns or affects a Group Company;

        "Liability for Tax"     means any liability of any Group Company to make
                                a payment of Tax and includes:-

                                (a)     the loss or reduction of any Relief
                                which would, but for such loss, have been
                                available to such Group Company to the extent
                                that the Relief has been taken into account in
                                reducing any provision for Tax (including
                                deferred Tax) in the Accounts; or

                                (b)     the loss or reduction of any right of
                                any Group Company to a repayment of Tax to the
                                extent that that right has been taken into
                                account as an asset in the Accounts or in
                                reducing any provision for Tax (including
                                deferred Tax) in the Accounts; or

                                (c)     the setting off of any such right to
                                repayment as is mentioned in paragraph (b) above
                                against any Claim for Tax which would, but for
                                such setting off, give rise to a claim under
                                this Deed;

        "Relief"                any allowance, credit, exemption, deduction, or
                                relief (including, without limitation, loss
                                relief) from, in computing, against or in
                                respect of Tax;

        "taxation statutes"     all statutes, and all laws, decrees, orders and
                                regulations, including subordinate legislation,
                                of whatever jurisdiction providing for or
                                imposing any Tax;

        "Tax" or "Taxes"        all forms of taxation, whether direct or
                                indirect, duties (including stamp duty),
                                imposts, payroll withholding, (including
                                national insurance contributions) and levies
                                whenever and in whatever jurisdiction imposed,
                                including all charges, interest, fines and
                                penalties
</TABLE>

                                      -65-


<PAGE>   69


<TABLE>
<S>                           <C>
                                relating thereto;

        "Tax Authority"         the Inland Revenue, Customs & Excise, Department
                                of Social Security and any other governmental or
                                other authority whatsoever competent to impose
                                any Tax, whether in the United Kingdom or
                                elsewhere;
</TABLE>

2.      Indemnity:

        2.1.    Subject to Clause 2.2, the Covenantor hereby covenants with the
                Purchaser to pay the Purchaser an amount equal to:-

                2.1.1.  any Liability for Tax that arises as a consequence of an
                        Event occurring or entered into at or before Completion;
                        and

                2.1.2.  the liability of any Group Company and/or the Purchaser
                        for all reasonable third party costs and expenses
                        reasonably and properly incurred by the Purchaser or
                        such Group Company in connection with any Claim for Tax
                        giving rise to (or which would, if it were successful,
                        give rise to) a liability covered by Clauses 2.1(a) or
                        2.1(b), including all legal proceedings relating thereto
                        and the settlement of any Claim for Tax and reasonable
                        steps taken to avoid any liability under a Claim for Tax
                        whether actual, threatened or anticipated.

        2.2.    The covenant contained in Clauses 2.1(a) and 2.1(b) shall not
                apply to any Liability for Tax to the extent that:

                2.2.1.  a full provision or reserve in respect of the Liability
                        for Tax has been made in the Accounts or to the extent
                        that such liability was taken into account in computing
                        the amount of such provision or reserve or disclosed in
                        the Accounts; or

                2.2.2.  it would not have arisen but for a change in
                        administrative practice or in legislation or a decision
                        of any Court made after Completion (whether relating to
                        taxation, rates of taxation or otherwise) or the
                        withdrawal of any extra-statutory concession previously
                        made by any taxing authority (whether or not the change
                        purports to be effective retrospectively in whole or in
                        part);

                2.2.3.  it arises as a result only of any change after
                        Completion in the accountancy practice or principles,
                        accounting policy, any tax reporting practice, or the
                        length of any account period for tax purposes of any
                        Group Company;

                                      -66-


<PAGE>   70


                2.2.4.  sums in respect of the matter giving rise to the
                        Liability for Tax have been recovered under the
                        Warranties;

                2.2.5.  such liability is in respect of or by reference to
                        income, profits or gains earned, or arises in
                        consequence of an Event occurring, since the Accounts
                        Date in the ordinary course of business of a Group
                        Company;

                2.2.6.  to the extent that such liability would not have arisen
                        but for an act, default, omission or transaction of the
                        Purchaser or of the Company or their respective
                        successors in title effected after Completion other than
                        in the case of the Company any such act, default,
                        omission or transaction carried out or effected under a
                        legally binding commitment created on or before
                        Completion or carried out or effected in the ordinary
                        course of business of a Group Company as carried on at
                        Completion.

                2.2.7.

                        a)      such liability arises by virtue of any claim,
                                election, surrender or disclaimer made or notice
                                or consent given after Completion by a Group
                                Company or the Purchaser (including the
                                disclaimer of the whole or part of any
                                industrial building or other capital allowances
                                under the provisions of any Taxation Statute)
                                other than where the making, giving or doing of
                                which was taken into account in the preparation
                                of the Accounts;

                        b)      such liability would not have arisen or would
                                have been reduced but for a failure or omission
                                on the part of the Purchaser or a Group Company
                                after Completion to make any election, claim,
                                surrender or disclaimer, or give any notice or
                                consent or do any other thing, in relation to
                                Taxation, the anticipated making giving or doing
                                of which was taken into account in computing any
                                provision or reserve for Taxation in the
                                Accounts;

                        c)      such 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;

                2.2.8.  such liability has been made good by insurers or
                        otherwise compensated for without cost to the Purchaser
                        or a Group Company;

                                      -67-


<PAGE>   71


                2.2.9.  such liability is in respect of stamp duty reserve tax
                        payable on the transfer or agreement to transfer the
                        Shares pursuant to the Share Purchase Agreement;

                2.2.10. such liability is attributable to a Group Company
                        ceasing to be entitled to the small companies' rate of
                        corporation tax whether by virtue of an increase in the
                        level of profits for the accounting period during which
                        Completion takes place that are attributable to the
                        period following Completion or by virtue of an increase
                        in the number of associated companies of a Group Company
                        after Completion;

                2.2.11. such liability arises or is increased as a consequence
                        of any failure by the Purchaser to comply with its
                        obligations under this Deed including for the avoidance
                        of doubt its obligations to procure that a Group Company
                        carries out any act or does anything;

                2.2.12. such liability could have been extinguished or reduced
                        by the use of any Relief in respect of any Tax which
                        existed at Completion and which was not shown as an
                        asset in the Accounts and was not taken into account in
                        computing any provision or reserve for Taxation
                        (including deferred Tax) in the Accounts;

                2.2.13. any income, profits or gains to which such liability is
                        attributable were earned or received by, or accrued to,
                        a Group Company but were not reflected in the Accounts;

3.      Gross-up: All sums payable by the Covenantor under this Deed shall be
        paid free and clear of all deductions or withholdings (including Tax)
        unless the deduction or withholding is required by law, in which event,
        or in the event that the Purchaser shall incur any liability for Tax
        chargeable or assessable in respect of any payment pursuant to this
        Deed, the Covenantor shall pay such additional amounts as shall be
        required to ensure that the net amount received by the Purchaser will
        equal the full amount which would have been received by it had no such
        deduction or withholding been made and/or no such liability to Tax been
        incurred and:-

        3.1.    (a)  in applying this Clause 2.3 no account shall be taken of
                the extent to which any liability for Tax may be mitigated or
                offset by any Relief or repayment available to the Purchaser, if
                such Relief or repayment would otherwise have been used to
                mitigate or offset any other liability for Tax of the Purchaser
                or any holding company of the Purchaser or any subsidiary of any
                such holding company; and

        3.2.    (b)  if, following the payment of an additional amount under
                this Clause 2.3, the Purchaser subsequently obtains a saving in
                Tax or a repayment or credit in respect of the deduction,
                withholding or liability for Tax giving rise to such amount, the
                Purchaser shall pay to the Covenantor a sum equal to the amount
                of such repayment or saving (in both cases to the extent only of

                                      -68-


<PAGE>   72


                the said additional amount) such payment to be made within 10
                days of the receipt of the repayment or the reduction of Tax due
                and payable, as the case may be.

4.      Timing:

        4.1.    Where the Covenantor becomes liable to make any payment pursuant
                to Clause 2, the due date for the making of that payment shall
                be within 20 days after the date on which notice setting out the
                amount of Tax due accompanied by reasonably satisfactory
                evidence from the auditors of the Company that the amount
                demanded is due and payable is received from the Purchaser in
                accordance with Clause 4 of this Deed or, if later:-

                4.1.1.  insofar as the claim arises under Clause 2.1(a), the day
                        before the day on which a payment of Tax becomes finally
                        due under the Claim for Tax in question or the day
                        before the day on which any repayment (or increased
                        repayment) of Tax (which but for such Claim for Tax
                        would have been available) would have been due;

                4.1.2.  insofar as the claim arises under Clause 2.1(b), the day
                        before the day on which payment of Taxation would have
                        been finally due from the relevant Group Company had the
                        Liability for Tax therein mentioned been satisfied by
                        the relevant Group Company by payment rather than by
                        Utilisation of Relief and for this purpose it shall be
                        assumed that the Claim for Tax would have been made and
                        all Tax would have become due at the latest date on
                        which payment could have been made without incurring
                        interest, penalties or fines for late payment; and

                4.1.3.  insofar as the claim arises pursuant to Clause 2.1(c),
                        the day before the day on which the costs and expenses
                        fall due for payment.

        4.2.    For the purpose of this Clause, no payment shall be treated as
                having been made until it has been received by the Purchaser in
                cleared funds.

        4.3.    If any sum due under Clause 2 is not paid by the Covenantor by
                the due date, the same shall carry interest (from such date
                until the date of payment) at the rate of two per cent over the
                base rate for the time being of Lloyds Bank plc (or, in the
                absence of such rate, at such equivalent rate as the Purchaser
                shall select).

5.      Time Limit:

        5.1.    The liability of the Covenantor to make any payment under this
                Deed shall cease on the second anniversary of the date of this
                Deed except: (a) in respect of any claim of which the Purchaser
                gives notice to the Covenantor before that date specifying (in
                reasonable detail) the nature of the claim and the amount of Tax
                claimed and any such claim which may be made shall (if

                                      -69-


<PAGE>   73


                it has not previously been satisfied, settled or withdrawn) be
                deemed to be withdrawn at the expiration of 6 months from the
                date of giving notice of such claim unless legal proceedings in
                respect thereof have been commenced by issuing and service or
                such proceedings against the Covenantor, or (b) in respect of
                any Claim for Tax alleging fraudulent conduct.

6.      Corresponding Benefit:

        6.1.    If the Purchaser or the relevant Group Company is or may be
                entitled to recover from a person (including any Tax authority)
                a sum in respect of any Claim for Tax which gives rise to a
                liability on the part of the Covenantor under this Deed, then:

                6.1.1.  the Purchaser shall give the Covenantor details of the
                        entitlement as soon as practicable;

                6.1.2.  the Purchaser shall at the request of the Covenantor and
                        at the Covenantor's expense having been indemnified and
                        secured to the Purchaser's satisfaction take all
                        appropriate steps to recover or to procure the recovery
                        of the sum, keeping the Covenantor fully informed of the
                        progress of any action taken;

                6.1.3.  the Purchaser shall within 14 days of recovery of any
                        sum, pay that sum to the Covenantor so far as it does
                        not exceed any payments already made by the Covenantor
                        in respect of the relevant Claim for Tax and pay to the
                        Covenantor any interest or repayment supplement received
                        in respect of that sum so far as paid to the Covenantor;
                        and

                6.1.4.  so far as not so repaid or paid, the amount of the sum
                        recovered (including any interest or repayment
                        supplement) shall be set against the liability of the
                        Covenantor in respect of the relevant Claim for Tax.

7.      Resistance of Claims:

        7.1.    If the Purchaser becomes aware of any Claim for Tax which may
                result in the Purchaser having a claim against the Covenantor
                under this Deed, the Purchaser shall give or procure that
                written notice is given to the Covenantor in the manner provided
                in Clause 4 of this Deed as soon as is reasonably practicable
                and no later than 10 days after becoming aware of the claim and
                the Covenantor shall, except in the case of fraud on the part of
                the Covenantor, be entitled at their sole discretion (but after
                consultation with the Purchaser) to resist such Claim for Tax in
                the name of the Purchaser or the relevant Group Company or any
                of them but at the expense of the Covenantor and to have the
                conduct of any appeal or incidental negotiations PROVIDED THAT:-

                                      -70-


<PAGE>   74


                7.1.1.  the relevant Group Company and the Purchaser shall be
                        kept fully informed of all matters pertaining to the
                        dispute; and

                7.1.2.  no material communication, written or otherwise,
                        pertaining to the dispute (and in particular no proposal
                        for or consent to any settlement or compromise thereof)
                        shall be transmitted to any Tax Authority or any other
                        taxation authorities or governmental body or authority
                        without the same having been submitted to, and approved
                        by, the Purchaser and the relevant Group Company; and

                7.1.3.  no application shall be made for postponement of Tax
                        unless the Purchaser and the relevant Group Company
                        shall be provided with such security as they may
                        reasonably require in respect of sums subsequently
                        becoming payable under this Deed.

        7.2.    The Purchaser shall procure that the relevant Group Company
                shall give the Covenantor reasonable co-operation, access and
                assistance, technical or otherwise, for the purpose of resisting
                such a Claim for Tax and shall provide such assistance as the
                Covenantor may reasonably require and all such information as
                may be available to the Purchaser at the relevant Group Company
                for avoiding, disputing, resisting, appealing or compromising or
                contesting any Claim for Tax provided that:-

                7.2.1.  the Covenantor shall not commence any proceedings beyond
                        a court of first instance with respect to a Claim for
                        Tax unless they have been advised by specialist Tax
                        Counsel selected by agreement between the Purchaser and
                        the Covenantor (or in default of agreement, selected by
                        the President for the time being of the Law Society,
                        after disclosure of all relevant information and
                        documents, that it is reasonable to resist the Claim for
                        Tax in the manner proposed by the Covenantor; and

                7.2.2.  the Covenantor reimburse the Purchaser an amount equal
                        to all reasonable costs and expenses which may thereby
                        be incurred.

8.      Over-provisions:

        8.1.    If the auditors for the time being of a Group Company shall
                certify (at the request and expense of the Covenantor) that any
                provision for Taxation in the Accounts has proved to be an
                over-provision then the amount of such over-provision shall be
                dealt with in accordance with clause 7.3.

        8.2.    If the auditors for the time being of a Group Company shall
                certify (at the request and expense of the Covenantor) that any
                Liability for Taxation which has resulted in a payment having
                been made or becoming due from the Covenantor under this Deed
                has given or will give rise to a corresponding saving for a
                Group Company which would not otherwise have arisen then as and
                when the liability of the Company to make an actual payment of
                or in

                                      -71-


<PAGE>   75


                respect of Taxation is reduced by reason of the utilisation of
                that corresponding saving the amount by which that liability for
                Taxation is so reduced shall be dealt with in accordance with
                clause 7.3.

        8.3.    Where it is provided under clause 7.1 or 7.2 above that any
                amount (the "Relevant Amount") is to be dealt with in accordance
                with this clause 7.3:

                8.3.1.  the Relevant Amount shall first be set off against any
                        payment then due from the Covenantor under this Deed;
                        and

                8.3.2.  to the extent there is an excess refund should be made
                        to the Covenantor of any previous payment or payments
                        made by the Covenantor under this Deed and not
                        previously refunded under this clause up to the amount
                        of such excess; and

                8.3.3.  to the extent that the excess referred in clause 7.3.2
                        above is not exhausted the remainder of that excess
                        shall be carried forward and set off against any future
                        payment or payments which become due from the Covenantor
                        under this Deed

        8.4.    Where any such certification as is mentioned in clause 7.1 or
                7.2 above has been made the Covenantor or the Purchaser or a
                Group Company may request the auditors of a Group Company for
                the time being at the expense of the parties so making the
                request 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.

        8.5.    If the auditors certify under clause 7.5 above that an amount
                previously certified should be amended that amended amount
                should be substituted for the purposes of clause 7.3 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
                aforementioned substitution shall be made as soon as practicable
                by the Covenantor or (as the case may be) to the Covenantor.

        8.6.    The Purchaser undertakes to supply, and undertakes to procure
                that the Company shall supply, to the Purchaser and subsequently
                to any firm of accountants nominated to deal with any such
                dispute in accordance with clause 7.6 (with copies to the
                Covenantor) all documents accounts notices papers and other
                necessary information as may be reasonably required for the
                purpose of making any such determination as to whether there is
                or has been any over-provision or a corresponding saving for the
                purposes of this clause 7.

                                      -72-


<PAGE>   76


9.      Purchaser's Covenants:

        9.1.    The Purchaser hereby covenants with the Covenantor to pay to the
                Covenantor an amount equal to:-

                9.1.1.  any liability or increased liability to Taxation of the
                        Covenantor or any person falling within s767A(2) of the
                        Taxes Act or any person falling with s767AA(4) of Taxes
                        Act as the result of any corporation tax assessed on a
                        Group Company remaining unpaid; and

                9.1.2.  any costs and expenses reasonably incurred by the
                        Covenantor or other relevant person in connection with
                        such liability under clause 8.1.1.

        9.2.    Clauses 6 (Resistance of claims) and 3 (timing) shall apply to
                the covenants contained in clause 8.1 as they apply to the
                covenants in clause 2 substituting references to the Covenantor
                with references to the Purchaser and vice versa and making any
                other necessary modifications.

10.     Tax Returns:

        10.1.   The Covenantor or its duly authorised agents shall prepare the
                tax returns and computations of the Company for all accounting
                periods ending on or prior to the Accounts Date, to the extent
                that the same shall not have been prepared before Completion,
                subject to such tax returns being submitted in draft form to the
                Purchaser or its duly authorised agents for comment a reasonable
                time before the same are due to be sent to the relevant tax
                authority. If the U.K. Purchaser or its duly authorised agents
                shall make any comments or suggestions and communicate them to
                the Covenantor within a reasonable time of receipt by the
                Purchaser of such draft tax returns, the Covenantor shall not
                unreasonably refuse to adopt such comments or suggestions.

        10.2.   The Purchaser shall procure that the returns and computations
                mentioned in clause 9.1 shall be authorised, signed and
                submitted to the appropriate tax authority without amendment or
                with such amendments as the Covenantor shall approve, such
                approval not to be unreasonably withheld or delayed, and shall
                give the Covenantor or its agents all such reasonable assistance
                as may be required to agree those returns and computations with
                the appropriate authorities PROVIDED THAT the Purchaser shall
                not be obliged to take any such action as is mentioned in this
                clause 9.2 in relation to any return that is not complete and
                accurate in all material respects.

        10.3.   The Covenantor or its duly authorised agents shall prepare all
                documentation and will have conduct of all matters (including
                correspondence) relating to the tax returns and computations of
                a Group Company for all accounting periods ended on or prior to
                the Balance Sheet Date provided that the

                                      -73-


<PAGE>   77


                Covenantor shall not without the prior written consent of the
                Purchaser (not to be unreasonably withheld or delayed) transmit
                any communication (written or otherwise) to the Inland Revenue
                or other relevant taxation authority or agree any matter with
                the Inland Revenue or other relevant taxation authority.

        10.4.   The Purchaser shall procure that a Group Company affords such
                access to its books, accounts and records as is necessary and
                reasonable to enable the Covenantor or its duly authorised
                agents to prepare the tax returns and computations of a Group
                Company for all accounting periods ended on or before the
                Accounts Date and conduct matters relating to them in accordance
                with this clause 9.

        10.5.   The Purchaser or its duly authorised agents shall prepare the
                tax returns and computations of a Group Company for the
                accounting period in which Completion falls, subject to all such
                computations and replies to enquires from the Inland Revenue or
                other relevant taxation authority being submitted in draft form
                to the Covenantor for comment, and the Purchaser or its duly
                authorised agents shall not unreasonably refuse to adopt such
                comments.

11.     The provisions of clause 11 (Assignment), clause 13 (Entire Agreement),
        clause 14 (Waiver, Amendment), clause 16 (Payments), clause 18 (Notice),
        clause 19 (Counterparts), clause 20 (Governing Law and Submission to
        Jurisdiction) clause 21 (Invalidity) , and Schedule 6 of the Share
        Purchase Agreement (to the extent expressly so stated therein) shall
        apply to this Deed as if the same were incorporated in this Deed.

12.     Payments to the Purchaser under this Deed, excluding any amounts the
        Purchaser repays to the Covenantor under this Deed, shall be treated for
        all purposes as a reduction in the purchase price of the Shares paid
        pursuant to the Share Purchase Agreement.




                                      -74-


<PAGE>   78


IN WITNESS whereof the parties hereto have duly executed this Deed the day and
year first before written.

EXECUTED AS A                                    )
DEED BY                                          )
                                                  --------------------
C.I. LAW TRUSTEES LIMITED                        ) Director
acting by                                        )

                                                  --------------------
                                                   Director/Secretary

EXECUTED as a                                    )
DEED BY                                          )
AETHER SYSTEMS, INC.                             )




                                      -75-


<PAGE>   79


                                   SCHEDULE 5

                                 THE PROPERTIES

<TABLE>
<S>                      <C>
1.       Lessor:           EjendomsSelskabet Narden A/S


         Lessee:           IFX Scandinavia ApS


         Premises:         Bredgade 20 (rear premises)
                           2nd Floor
                           DK-1260 Copenhagen K


2.       Lessor:           Gamla Livforsakringgsaktiebolaget SEB Trygg Liv


         Lessee:           IFX Scandinavia Aps


         Premises:         Kungsgatan 24, Stockholm


3.       Lessor:           A/S Kongensgate 7


         Lessee:           The Association of Norwegian Stockbroking Companies


                           (IFX Scandinavia ApS)


         Premises:         Two of the following Rooms 501, 502, 503, 504, 505, 506,
                           515, 516 and 517 Kongensgate 7


4.       Lessor:           Menta Real Estate Ltd


         Lessee:           IFX Scandinavia ApS,
</TABLE>


                                      -76-


<PAGE>   80


<TABLE>
<S>                    <C>
         Premises:         Room 439, 4th Floorm, World Trade Centre, Helsinki,
                           AlekSanterinkatu 17


5.       Lessor:           Otto Lenz


         Lessee:           IFX Deutschland GmbH


         Premises:         App. 101, Schillerstra(beta)e 18, Frankfurt M


6.       Lessor:           Regus Amsterdam B.V.


         Lessee:           IFX Scandinavian


         Premises:         Hoorgoorddreef 9, 1101 BA, Amsterdam SE


7.       Lessor:           Modesto Saiz Gabaldon


         Lessee:           IFX Finanzas Espana SA


         Premises:         No. 48 Calle Capitan Hoya, Madrid


8.       Lessor:           SCI


         Lessee:           IFX France S.A.R.L.


         Premises:         5th Floor, 9 Rue du Chateau d'Eau, 75010 Paris
</TABLE>


                                      -77-


<PAGE>   81


<TABLE>
<S>                    <C>
9.       Lessor:           Bruno Emanuel Lages Serejo


         Lessee:           IFX Finanzos S.A. - Branch in Portugal


         Premises:         3rd Floor, B, Rua de Viriato No. 27, Lisbon


10.      Lessor:           Golden Shoe Holdings (Pte) Ltd


         Lessee:           Intext [IFX] Pte Ltd


         Premises:         15 Phillip Street #08-00, Tan Ean Kiam Building,
                           Singapore 048694
</TABLE>




                                      -78-


<PAGE>   82


                                   SCHEDULE 6

                            LIMITATIONS OF LIABILITY

1.      APPLICABILITY OF THIS SCHEDULE

        The provisions of this Schedule shall apply with respect to the
        Warranties and (only to the extent expressly so stated in this Schedule)
        to the other provisions of this Agreement and to the Tax Deed (in
        addition to the limitations (if any) set out in those documents
        respectively).

2.      WARRANTIES

        Notwithstanding anything in this Agreement to the contrary, the
        provisions of this Schedule shall operate to limit the liability of CILT
        in respect of any claim under the Warranties by the Purchaser (a
        "Warranty Claim").

3.      LIMITATIONS OF LIABILITY UNDER THE WARRANTIES AND THE TAX DEED

        3.1.    Limitation on quantum:

                3.1.1.  Save in the event of fraud on the part of CILT:

                        a)      The total liability of CILT under or pursuant to
                                this Agreement (whether for breach of the
                                Warranties (other than the Tax Warranties and
                                the Tax Deed) shall not exceed the lesser of:-

                                (1)     US$17,000,000; and

                                (2)     after the first anniversary of
                                        Completion, US$8,500,000 plus a sum
                                        equal to any liability of CILT in
                                        respect of any such claims notified in
                                        accordance with paragraph C2 by the
                                        Purchaser to CILT on or prior to the
                                        first anniversary of Completion.

                        b)      The total liability of CILT under or pursuant to
                                the Tax Warranties and the Tax Deed shall not
                                exceed US$8,500,000.

                        c)      CILT shall not be liable in respect of any
                                individual claim under the Warranties (other
                                than Warranties C1(b) and D7 or the Tax
                                Warranties) unless (and then only to the extent
                                that) the amount that would otherwise be
                                recoverable from CILT in respect of such claim
                                exceeds US$20,000. For the avoidance of doubt,
                                amounts for which the CILT has no liability, or
                                by which the CILT's liability is reduced as a
                                consequence of the operation of this clause
                                shall not be capable of constituting a claim or
                                increasing the amount thereof for the purpose of
                                paragraph 3.1.1(d).

                                      -79-


<PAGE>   83


                        d)      CILT shall not be liable in respect of any claim
                                or claims under the Warranties other than the
                                Tax Warranties unless and until (and then in
                                respect of all such claims) the aggregate amount
                                that would otherwise be recoverable from CILT in
                                respect of all such claims (after disregarding
                                such part of such claims as is necessary to
                                comply with paragraph 3.1.1(c) shall exceed
                                US$250,000.

                        e)      CILT shall not be liable in respect of any claim
                                or claims under the Tax Warranties or the Tax
                                Deed unless and until (and then in respect of
                                all such claims) the aggregate amount that would
                                otherwise be recoverable from CILT in respect of
                                all such claims shall exceed US$75,000

                3.1.2.  For the purpose of paragraph 3.1.1, where a claim
                        relates to more than one event, circumstance, act or
                        omission which event, circumstance, act or omission
                        would separately constitute a breach of or give rise to
                        a Warranty Claim or a claim under the Tax Deed, such
                        claim shall be treated as a separate claim in respect of
                        each such event, circumstance, act or omission.

                3.1.3.  The amount of any claim(s) under the Warranties in
                        respect of any particular matter or circumstance shall
                        be counted only once, so that the Purchaser shall not be
                        entitled to aggregate any claims which it may make (or
                        be entitled to make) under this Agreement and/or the Tax
                        Deed.

                3.1.4.  Nothing in this Schedule shall in any way restrict or
                        limit the general obligation of the Purchaser to
                        mitigate any loss or damage which it may suffer in
                        consequence of any breach by CILT of the Warranties.

                3.1.5.  the avoidance of doubt, in determining the amount of any
                        claim for the purposes of the limits set out in this
                        Schedule, the amount of such claim shall be the net
                        amount after giving effect to all the provisions of this
                        Schedule.

        3.2.    Time limits for bringing claim:

        No claim shall be brought against CILT in respect of any breach of the
        Warranties or the Tax Deed unless the Purchaser shall have given to CILT
        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 Purchaser's good faith estimate of the amount claimed
        in respect thereof on or before the date of the second anniversary of
        Completion;

        PROVIDED that the liability of CILT 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

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        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 CILT.

        3.3.    Conduct of litigation:

                3.3.1.  If the Purchaser considers that it will or may make a
                        claim against CILT for breach of Warranty, it shall as
                        soon as practicable notify CILT in writing, giving such
                        particulars thereof as are then available, and for a
                        period of 30 days after such notification shall afford
                        CILT the opportunity to take steps to remedy the matter
                        giving rise to such claim. To the extent that the matter
                        giving rise to such claim is remedied within such 30
                        days period, the Purchaser shall not be entitled to any
                        compensation in respect thereof.

                3.3.2.  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, the Purchaser
                        shall, subject to paragraph 15 of this Schedule:-

                        a)      forthwith notify CILT by written notice as soon
                                as it appears to the Purchaser that any
                                assessment or claim of a third party received by
                                or coming to the notice of the Purchaser may
                                result in a claim under the Warranties;

                        b)      take such action and give such information and
                                access to personnel, premises, chattels,
                                documents and records to CILT and its
                                professional advisers as CILT may reasonably
                                request;

                        c)      at the request of CILT, allow CILT, at CILT's
                                sole expense, to take the sole conduct of such
                                actions as CILT may deem appropriate in
                                connection with any such assessment or claim in
                                the name of the Purchaser and in that connection
                                the Purchaser shall, upon receiving such
                                security for its costs as the Purchaser may
                                reasonably request, give or cause to be given to
                                CILT such assistance as CILT may reasonably
                                require in avoiding, disputing, resisting,
                                settling, compromises, defending or appealing
                                any such claim and shall instruct such
                                solicitors or other professional advisers as
                                CILT may (with the Purchaser's consent, such
                                consent not to be unreasonably withheld)
                                nominate to act on behalf of the Purchaser, as
                                appropriate, but to act in accordance with
                                CILT's sole instructions; or

                        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 CILT.

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                3.3.3.  In any event, CILT shall be entitled at any stage and at
                        their sole discretion to settle any such third party
                        assessment or claim and shall notify any such decision
                        to settle such assessment or claim to the Purchaser as
                        soon as practicable thereafter.

4.      Acts of the Purchaser:

        No claim shall lie against CILT under the Warranties if such claim is
        wholly or partly attributable to:-

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

        4.2.    any voluntary act, omission, transaction or arrangement outside
                the ordinary course of business carried out by the Purchaser or
                on its behalf or by persons deriving title from the Purchaser
                under this Agreement on or after Completion;

        4.3.    any admission of liability made without CILT's consent after the
                date hereof by the Purchaser or on its behalf or by persons
                deriving title from the Purchaser under this Agreement on or
                after Completion;

        4.4.    directly or indirectly the cessation of any business carried on
                by the Company or the Purchaser or any holding company or
                subsidiary of the Purchaser or any subsidiary of the holding
                company or the Purchaser (the Purchaser's Group) following
                Completion.

5.      Allowance, provision or reserve in the Accounts and/or the Management
        Accounts:

        No matter shall be the subject of a claim for breach of any of the
        Warranties to the extent that allowance, provision or reserve in respect
        of such matter shall have been made in the Accounts and/or the
        Management Accounts or has been included in calculating creditors or
        deducted in calculating debtors in the Accounts and/or the Management
        Accounts or shall have been otherwise taken account of in calculating
        any sum or sums shown in the Accounts and/or the Management Accounts.

6.      Recovery from third parties:

        Subject to paragraph 15 of this Schedule,

        6.1.    In the event that the Purchaser shall recover any amount from
                some other person any sum in respect of any matter giving rise
                to a claim under the Warranties, the amount of the claim against
                CILT shall be reduced by the amount recovered, less all
                reasonable costs, charges and expenses incurred by the Purchaser
                recovering that sum from such other person.

        6.2.    If CILT pays at any time to the Purchaser an amount pursuant to
                a claim in respect of the Warranties and the Purchaser
                subsequently recovers from some other person any sum in respect
                of any matter giving rise to

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<PAGE>   86


                such claim, the Purchaser shall forthwith repay to CILT so much
                of the amount paid to the Purchaser as does not exceed the sum
                recovered from such other person less all reasonable costs,
                charges and expenses incurred by the Purchaser in recovering
                that sum from such other person.

7.      Retrospective legislation:

        No liability shall arise in respect of any breach of any of the
        Warranties to the extent that liability for such breach occurs or is
        increased wholly or partly as a result of any legislation not in force
        at the date hereof which takes effectively retrospectively.

8.      Taxation:

        8.1.    CILT shall have no liability in respect of a Warranty Claim if
                such breach or claim would not have occurred or arisen but for
                any change in the basis of, method of calculation of, or
                increase in the rate or rates of taxation or changes in the
                practice of the Inland Revenue made or coming into effect after
                the date hereof or the withdrawal after the date hereof of any
                extra-statutory concession currently granted by any tax
                authority.

        8.2.    CILT shall have no liability in respect of a Warranty Claim to
                the extent that such claim, or the subject matter thereof occurs
                or arises, or such claim otherwise has arisen, or is increased
                as a result of any change made after the date hereof in any
                accounting or taxation policies or practice of the Company, the
                Purchaser or the Purchaser's Group.

        8.3.    If any specific provision or reserve for Taxation shall at the
                date of any payment required to be made by CILT have proved to
                have been an over-provision or over-reserve the amount of such
                over-provision or over-reserve shall be set off against any
                actual liability of CILT in respect of any claim(s) for breach
                of the Warranties.

9.      No liability for contingent or non-quantifiable claims:

        If any breach of the Warranties arises by reason of some liability
        which, at the time such breach or claim is notified to CILT, is
        contingent only or otherwise not capable of being quantified, then CILT
        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. So long as
        such claim shall have been notified to CILT in accordance with paragraph
        2 above, as appropriate, then the proviso to the relevant paragraph
        shall be amended in relation to such claim so as to require that legal
        proceedings be commenced within six months from the date on which the
        said liability ceases to be contingent or becomes capable of being
        quantified, as the case may be, in order for the liability of CILT not
        to determine.

10.     Information of the Purchaser:

        The Purchaser acknowledges and declares that in entering into this
        agreement it has not relied and is not relying on any warranties,
        representations, covenants, undertakings, indemnities, promises,
        forecast or other statements whatsoever

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<PAGE>   87


        whether written or oral (and whether implied or otherwise) (collectively
        "Representations"), other than those expressly set out in this Agreement
        and in the Tax Deed, and the Purchaser hereby irrevocably and
        unconditionally waives any right it may have to claim damage for, or to
        rescind this agreement by reason of, any Representation not expressly
        set out or referred to in this Agreement or the Tax Deed unless such
        representation was made fraudulently.

11.     Payment of claim to be reduction in purchase price:

        Any payment made by CILT in respect of any claim under the Warranties or
        the Tax Deed shall be deemed to be a reduction in that total
        consideration payable under this Agreement.

12.     Insurance:

        No claim shall lie against CILT under the Warranties to the extent such
        claim is recoverable by the Purchaser or the Company or any member of
        the Purchaser's Group under the terms of any insurance policy of the
        Purchaser or the Company or any member of the Purchaser's Group (or
        would have been so recoverable but for any change in the terms of any
        such policy after Completion).

13.     Rescission:

        Save in the event of fraud, no right of rescission shall be available
        after Completion to the Purchaser by reason of any breach of the
        Warranties or any other provision of this Agreement or the Tax Deed.

14.     Trustee's Liability:

        Without prejudice to the foregoing the liability of the Trustee for all
        and any claims under this Agreement and/or the Tax Deed shall not exceed
        the value for the time being of the Trust Assets less an amount equal to
        the Trustee's bona fide estimate of any Permitted Tax Liability or
        Permitted Trust Liability properly payable out of the Trust Assets.

15.     No prejudice to Business:

        Nothing in paragraphs 3 or 6 of this Schedule shall require the
        Purchaser to do or omit to do any act or thing which would or may, in
        the Purchaser's judgment, prejudice the business or interests of the
        Company or any member of the Purchasers' Group and which would not be
        required of the Purchaser to discharge its common law duty to mitigate
        loss.




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