TUT SYSTEMS INC
8-K, EX-2.1, 2000-06-09
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<PAGE>

            DATED                                    26th MAY  2000
            -------------------------------------------------------



               (1)  THE SHAREHOLDERS

               (2)  PHILIP CORBISHLEY


               (3)  TUT SYSTEMS.INC


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

                               A G R E E M E N T

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


For the sale and purchase of the entire issued share capital of  Xstreamis Plc






                                   EVERSHEDS

                              11-12 Queen Square
                               Bristol  BS1 4NT
                              Tel: 0117 929 9555
                              Fax: 0117 929 2766
<PAGE>

                                    CONTENTS
<TABLE>
<CAPTION>
  Clause                                                       Page
<S>                                                            <C>
       1  INTERPRETATION.....................................   1
       2  SALE AND PURCHASE..................................   5
       3  CONSIDERATION......................................   5
       4  WARRANTIES.........................................   6
       5  OTHER PROVISIONS RELATING TO WARRANTIES............   13
       6  RESTRICTIVE COVENANTS..............................   16
       8  ANNOUNCEMENTS......................................   23
       9  COSTS..............................................   24
      10  INTEREST...........................................   24
      11  NOTICES............................................   24
      12  GENERAL............................................   26
      Schedule
       1  The Vendors........................................   29
       2  Details of the Company.............................   32
       3  The Property.......................................   33
       4  Non-Taxation Warranties............................   34
          1  Interpretation..................................   34
          2  Schedules 1 & 2; Capital........................   37
          3  Capacity........................................   37
          4  Insiders' interests.............................   38
          5  Information supplied to the Purchaser...........   38
          ACCOUNTS AND RECORDS...............................   38
          6  The Accounts....................................   38
          7  Profits and losses..............................   39
          8  Records.........................................   40
          ASSETS.............................................   40
          9  Subsidiaries....................................   40
          10  Unencumbered title; possession.................   40
          11  Debtors........................................   41
          12  (not used)
          13  Plant etc......................................   41
          14  Property.......................................   41
          15  Intellectual Property..........................   43
          16  Millennium and Euro Compliance.................   43
          EMPLOYEES..........................................   45
          17  Remuneration and employees.....................   45
          CONTRACTS..........................................   46
          18  Insurance......................................   46
</TABLE>
<PAGE>

<TABLE>

<S>                                                           <C>
      19  Financing and working capital......................  47
      20  Material Contracts.................................  48
      21  Other business matters.............................  50
      COMPLIANCE; DISPUTES...................................  51
      22  Company law matters................................  51
      23  General legal compliance...........................  51
      24  Environmental/Health and Safety (EHS) matters......  52
      25  Fair trading.......................................  55
      26  Litigation.........................................  56
      27  Default............................................  56
      28  Insolvency.........................................  57
      29  Events since the Accounting Date...................  57
      30  Effects of the Agreement...........................  59
   5  Taxation Warranties....................................  61
      31  INTERPRETATION.....................................  61
      PART 2 - TAX WARRANTIES................................  63
      32  Returns, disputes and clearances...................  63
      33  Penalties and interest.............................  64
      34  Taxation claims, liabilities and reliefs...........  64
      35  Distributions and payments.........................  65
      36  Employee benefits..................................  67
      37  Close companies....................................  68
      38  Group transactions.................................  68
      39  Gifts..............................................  69
      40  Tax avoidance......................................  70
      41  Base values and acquisition costs..................  70
      42  Capital gains......................................  70
      43  Capital allowances.................................  72
      44  VAT: general.......................................  73
      45  VAT: property transactions.........................  74
      46  Stamp duty and stamp duty reserve tax..............  75
      47  Residence and offshore interests...................  75
      48  The Balance Sheet..................................  76
      49  Post-Accounting Date...............................  77
      50  Shares and securities..............................  77
</TABLE>
<PAGE>

THIS AGREEMENT is made on 26/th/ May 2000

BETWEEN

(1)  The persons whose names and addresses are set out in Part 1 of Schedule 1
     ("the Vendors");

(2)  PHILIP CORBISHLEY of 15 High Street, Hardingstone, Northampton  NN4 7BT
     ("the Secondary Warrantor"); and

(3)  TUT SYSTEMS.INC (IRS. Employer Identification Number 94-2958543) whose
     place of business is at 2495 Estand Way, Pleasant Hill, California CA 94523
     USA] ("the Purchaser")

BACKGROUND

A.   The Vendors wish to sell and the Purchaser wishes to buy the Shares in
     exchange for the Consideration Shares and $100,000 on and subject to the
     terms and conditions of this Agreement.

B.   The level of Warranty that the Vendors are prepared to give to the
     Purchaser differs and, accordingly:

     (i)    the Primary Warrantors will give only the Primary Warranties;

     (ii)   the Secondary Warrantor will give only the Secondary Warranties; and

     (iii)  the Tertiary Warrantors will only give only the Tertiary Warranties.

OPERATIVE PROVISIONS

1.   INTERPRETATION

     In this Agreement:

1.1  the following expressions have the following meanings unless inconsistent
     with the context:

     "the Act"                     the Companies Act 1985
<PAGE>

     "Business Day"                any day (other than Saturday or Sunday) on
                                   which Clearing Banks are generally open for a
                                   full range of banking transactions

     "Clearing Bank"               a bank which is a member of CHAPS Clearing
                                   Company Limited

     "the Company"                 Xstreamis Plc, registered number 3011154,
                                   whose registered office is at 30 Aylesbury
                                   Street London EC1 0ER

     "Completion"                  the meaning ascribed to it in clause 7.4


     "the Conditions"              the Conditions to be satisfied prior to
                                   Completion as set out in Clause 7.1

     "the Consideration Shares"    439,137 common stock in the capital of the
                                   Purchaser to be allotted pursuant to clause
                                   3.1.1

     "the Disclosure Letter"       the letter having the same date as this
                                   Agreement from the Vendors to the Purchaser
                                   qualifying the Warranties and the
                                   Supplemental Letter

     "dollar" and "$"              U.S dollars, being the lawful currency of the
                                   United States of America

     "Group"                       the Purchaser and its subsidiaries from time
                                   to time and "Group Company" shall be
                                   construed accordingly

     "James Chapman"               as detailed in Part 1 of Schedule 1

     "Nasdaq"                      Nasdaq National Market

     "the Optionholders"           those holders of the Share Options as
                                   specified in Part 2 of Schedule 1

     "the Primary Warranties"      the Warranties contained in Part 1 of
                                   Schedule 4 and Part 2 of Schedule 5
<PAGE>

     "the Primary Warrantors"            David Nevin Birss of 12 Clevedon Road,
                                         Tilehurst, Reading, Berkshire RG31 6RL
                                         and Ian Moir of Quince House, Beckford,
                                         Upper Basildon Berkshire RG8 8PB

     "the Primary Warrantors' Warranty   the agreement in the agreed terms
                                         between the Settlement Agreement"
                                         Primary Warrantors, the Purchaser and
                                         the Vendors' Solicitor to be entered
                                         into at Completion and relating to the
                                         determination of any claim under the
                                         Primary Warranties.

     "the Property"                      the property specified in Schedule 3
                                         each and every part of such property

     "the Purchaser's Solicitors"        Eversheds 11/12 Queen Square, Bristol
                                         BS1 4NT

     "the Registration Rights Agreement" the agreement in the agreed terms
                                         between the Vendors and the Purchaser
                                         to be entered into at Completion
                                         relating to the registration of the
                                         Consideration Shares with the SEC

     "the Secondary Warranties"          the Warranties set out in Part 2 of
                                         Schedule 4

     "the Secondary Warrantor"           Phillip Corbishley of 15 High Street,
                                         Hardingstone, Northampton  NN4 7BT

     "the Shares"                        all of the issued shares of 2.5p each
                                         in the capital of the Company

     "the Share Options"                 the unexercised options over unissued
                                         Ordinary Shares of 2.5p each in the
                                         capital of the Company issued pursuant
                                         to the Xstreamis Plc Share Option
                                         Scheme as specified in Part 2 of
                                         Schedule 1

     "Simon Hughes"                      as detailed in Part 1 of Schedule 1

     "the Subsidiaries"                  ADSL Limited (registered number
                                         3297693) whose registered office is at
                                         30 Aylesbury Street, London EC1R 0ER
                                         and Xstreamis Inc (registered in
                                         Delaware, USA)
<PAGE>

     "the Stakeholders Agreement"        the agreement in the agreed terms
                                         between the Vendors, the Purchaser and
                                         the Vendors' Solicitor to be entered
                                         into at Completion relating to
                                         Completion of this Agreement

     "the Supplemental Letter"           the letter(s), if any, delivered prior
                                         to Completion supplementing the
                                         Disclosure Letter

     "the Tertiary Warranties"           the Warranties set out in Part 3 of
                                         Schedule 4

     "the Tertiary Warrantors"           the Vendors (other than the Primary and
                                         Secondary Warrantors)

     "the Tut Options"                   The options to be granted to the
                                         Optionholders by the Purchaser as
                                         detailed in Part 2 of Schedule 1t under
                                         the Tut Systems 1999 non-statutory
                                         Stock Option Plan

     "the Vendors' Solicitors"           Masons of 30 Aylesbury Street, London
                                         EC1 0ER

     "the Warranties"                    the warranties, set out or referred to
                                         in clause 4, Schedule 4 and Part 2 of
                                         Schedule 5;

     "the Warrantors"                    the Primary Warrantors, the Secondary
                                         Warrantor and the Tertiary Warrantors

1.2  references to any statute or statutory provisions will, unless the context
     otherwise requires, be construed as including references to any earlier
     statute or the corresponding provisions of any earlier statute, whether
     repealed or not, directly or indirectly amended, consolidated, extended or
     replaced by such statute or provisions, or re-enacted in such statute or
     provisions, and to any subsequent statute or the corresponding provisions
     of any subsequent statute in force at any time prior to the date of this
     Agreement directly or indirectly amending, consolidating, extending,
     replacing or re-enacting the same, and will include any orders,
     regulations, instruments or other subordinate legislation made under the
     relevant statute or statutory provisions which are in force prior to the
     date of this Agreement;

1.3  references to persons will be construed so as to include bodies corporate,
     unincorporated associations and partnerships and references to any gender
     include the other gender;
<PAGE>

1.4  references to a document being "in the agreed terms" will be construed as
     references to that document in the form agreed and initialled by or on
     behalf of the Vendors and the Purchaser;

1.5  save as otherwise expressly provided all covenants, agreements,
     undertakings, indemnities, representations and warranties on the part of
     two or more persons are given or made by such persons jointly and
     severally;

1.6  references to clauses and schedules are to Clauses of and Schedules to this
     Agreement, and references to paragraphs are to paragraphs in the Schedule
     in which such references appear;

1.7  the Schedules form part of this Agreement and will have the same force
     and effect as if expressly set out in the body of this Agreement; and

1.8  the headings to the clauses of this Agreement and to the paragraphs of the
     Schedules (save for headings in Schedules 1, 2 and 3) will not affect its
     construction.

2.   SALE AND PURCHASE

     Each of the Vendors will sell and the Purchaser will buy, the number of
     Shares specified opposite that Vendor's name in Part 1 of Schedule 1.

2.1  Each Vendor (other than the Sandford childrens' Trust) sells its Shares
     with full title guarantee and free from any claim, charge, lien,
     encumbrance, equity or third party right. Ron Sandford and Raymond Segal as
     the trustees of the Sandford Childrens' Trust sell with limited title
     guarantee.

2.2  Each of the Shares will be sold and bought with all rights attached or
     accruing to it including all rights to any dividends or other distributions
     declared, made or paid after the execution of this Agreement.

2.3  Each of the Vendors waives all rights of pre-emption over any of the Shares
     conferred by the articles of association of the Company or otherwise.

2.4  No party will be obliged to complete the sale and purchase of any of the
     Shares or the surrender of the Share Options unless the Conditions have
     been satisfied or waived and the sale and purchase of all the Shares, the
     issue of the TUT Options in substitution for the Share Options, the issue
     of the Consideration Shares, the surrender of the Share Options and the
     payment referred to in Clause 3.1 are all completed simultaneously.

3.   CONSIDERATION

3.1  The consideration for the sale of the Shares will be:
<PAGE>

     3.1.1  the allotment and issue to the Vendors of 439,137 common stock of
            $0.001 par value each in the capital of the Purchaser credited as
            fully paid, and accordingly each of the Vendors will be entitled to
            the number of Consideration Shares specified opposite that Vendor's
            name in Part 1 of Schedule 1; and


     3.1.2  the sum of $100,000, and each of the Vendors will be entitled to
            receive the sum specified opposite that Vendor's name in Part 1 of
            Schedule 1.

3.2  The Consideration Shares will rank pari passu and as a single class with
     the existing common stock of $0.001 par value each in the capital of the
     Purchaser, and shall carry the right to receive in full all dividends and
     other distributions declared, made or paid after the date of this
     Agreement.

4.   WARRANTIES

4.1  The Primary Warrantors:

     4.1.1  warrant to the Purchaser in the terms of the Primary Warranties,
            provided however that the Purchaser will not be entitled to claim
            that any fact or combination of facts constitutes a breach of any of
            the Primary Warranties if and to the extent that such fact or
            combination of facts has been fairly disclosed in the Disclosure
            Letter;

     4.1.2  agree that the Purchaser is entering into this Agreement in reliance
            on each of the Primary Warranties, and that save as provided in
            clause 4.1.1 no information of which the Purchaser has knowledge
            (save for actual knowledge ) will prejudice any claim made by the
            Purchaser in respect of the Primary Warranties or will operate to
            reduce any amount recoverable in respect of any breach of any of the
            Primary Warranties or will operate to prevent any claim being made
            by the Purchaser for any breach by the Primary Warrantors of the
            covenants implied by the Law of Property (Miscellaneous Provisions)
            Act 1994;

     4.1.3  warrant to the Purchaser that (save as aforesaid) all the Primary
            Warranties will be fulfilled and will be true and accurate in all
            respects on the date hereof and on the day of Completion and that
            the Primary Warrantors shall be entitled prior to Completion to
            make non-material disclosures to the Purchaser by way of the
            Supplemental Disclosure Letter provided such non-material
            disclosures relate only to matters, facts or circumstances over
            which the Primary Warrantors have acted at all times in good faith;
<PAGE>

     4.1.4  will indemnify the Purchaser against any costs or expenses
            (including legal costs) which it reasonably and properly incurred,
            either before or after the commencement of any action leading to a
            claim (in this clause "claim" has the meaning set out in clause 4.6)
            to the extent that such costs or expenses when combined with any
            payment in respect of any claim do not exceed the warranty limit set
            out in clause 4.6.2;

     4.1.5  undertake, for themselves and not jointly and severally, to disclose
            to the Purchaser as soon as he becomes aware of any such matter
            anything which comes to the notice of either of them which is or may
            be a breach of any of the Primary Warranties; and

     4.1.6  undertake that, in the event of any claim being made against any of
            them whether under the Primary Warranties or otherwise in connection
            with the sale of the Shares to the Purchaser, they will not make any
            claim against the Company, or against any director or employee of
            the Company, on which or on whom either of them may have relied
            before agreeing to any term of this Agreement or authorising any
            statement in the Disclosure Letter, but so that this undertaking
            will not preclude any Warrantor from claiming against any other
            Warrantor under any right of contribution or indemnity to which such
            Warrantors may be entitled.

4.2  Each of the Primary Warranties will be construed as a separate Warranty and
     will not be limited or restricted by reference to, or inference from, the
     terms of any other Warranty or any other term of this Agreement.

4.3  In this Agreement, unless otherwise specified, where any Primary Warranty
     refers to the knowledge, information, belief or awareness of the Primary
     Warrantors (or similar expression), each Primary Warrantor will be deemed
     to have such knowledge, information, belief or awareness as such Primary
     Warrantor would have obtained had such Primary Warrantor made all due and
     careful enquiries into the subject matter of that Primary Warranty and it
     shall not be a defence that the Primary Warrantor did not appreciate the
     relevance or significance of any particular matter and the knowledge,
     information, belief and awareness of either of the Primary Warrantors shall
     be imputed to the other Primary Warrantor.

4.4  Subject to Clause 4.1.3, if prior to Completion it shall be found that any
     of the Primary Warranties including for the avoidance of doubt, any
     Warranty given pursuant to clause 4.1.3 is materially breached or
     unfulfilled, the Purchaser shall be entitled by notice in writing to the
     Vendors to rescind this Agreement but failure to exercise such
<PAGE>

     right in respect of any breach over which the Primary Warrantors have not
     acted in good faith shall not constitute a waiver of any other rights of
     the Purchaser arising by reason of any breach of any of the Primary
     Warranties and exercise of such right shall be without prejudice to any
     other rights and remedies  the Purchaser may have under or in respect of
     this Agreement. (but for the avoidance of doubt where the Primary
     Warrantors have acted in good faith and the Purchaser does not exercise its
     right under this clause 4.4 to rescind this Agreement such failure shall
     constitute a waiver of any other rights of the Purchaser arising by reason
     of that breach of the Primary Warranties).

4.5  If after the execution of this Agreement and before Completion any event
     shall occur (other than an event constituting or giving rise to a breach of
     any of the Warranties) which affects or is likely to affect materially and
     adversely the financial position or business prospects of the Company, not
     being an event affecting or likely to affect generally all companies
     carrying on similar businesses in the United Kingdom, the Purchaser shall
     be entitled by notice in writing to the Vendors to rescind this Agreement
     at any time prior to Completion but the occurrence of such an event shall
     not give rise to any right to damages or compensation.

4.6  In this clause 4.6 and clause 4.7 "claim" means any claim which is
     successfully brought  (disregarding the provisions of this clause 4.6)
     against the Primary Warrantors (or either of them)  or is agreed between
     the Purchaser and the Primary Warrantors in favour of the Purchaser for
     breach of the Primary Warranties.  Notwithstanding the foregoing provisions
     of clause 4:

     4.6.1  each Primary Warrantor will be under no liability to make any
            payment in respect of any claim unless it:

            (a)    is (Pounds)10,000 (after deducting any such costs as are
                   referred to in clause 4.1.4) or more in respect of any single
                   claim; or

            (b)    is (when aggregated with his liability in respect of any
                   other claim or claims made by the Purchaser or which would
                   have been made but for the provision of this clause 4.6.1) in
                   excess of (Pounds)10,000 (after deducting any such costs as
                   are referred to in clause 4.1.4) in which event the Primary
                   Warrantor will (subject to the other provisions of this
                   clause 4.6) be liable for the whole amount of liability and
                   not merely for the excess; and
<PAGE>

     4.6.2     the aggregate liability of the Primary Warrantors in respect of
               all claims (by way of damages or otherwise) will be limited to
               the value of $1,937,820.00 and will be subject to the terms of
               the Primary Warrantors' Warranty Settlement Agreement;

     4.6.3     the Primary Warrantors will be under no liability to make any
               payment in respect of any claim or potential claim unless written
               particulars of the claim or potential claim (giving such
               reasonable details as are then available of the specific matter
               in respect of which such claim or potential claim is made) are
               given to the Primary Warrantors:

               4.6.3.1   in the case of the Primary Warranties contained in
                         Schedule 4, within 12 months from the date of this
                         Agreement; and

               4.6.3.2   in the case of the Warranties contained in Schedule 5,
                         within seven years from the date of this Agreement;

               in either case, if the Purchaser has not commenced legal
               proceedings in respect of any potential claim within 18 months of
               such notice, the Purchaser shall be deemed to have waived such
               potential claim in full.

4.7  Notwithstanding any other provision of this Agreement, the provisions of
     clause 4.6 shall not apply to exclude or limit the liability of the Primary
     Warrantors to the extent that any claim or potential claim arises by reason
     of any fraud or dishonest, reckless or wilful misstatement or omission by
     or on behalf of the Primary Warrantors or either of them.

Warranties from Secondary Warrantor

4.8  The Secondary Warrantor:

     4.8.1     warrants to the Purchaser in the terms of the Secondary
               Warranties, provided however that the Purchaser will not be
               entitled to claim that any fact or combination of facts
               constitutes a breach of any of the Warranties if and to the
               extent that such fact or combination of facts has been fairly
               disclosed in the Disclosure Letter;

     4.8.2     agrees that the Purchaser is entering into this Agreement in
               reliance on each of the Secondary Warranties, and that save as
               provided in clause 4.8.1 no information of which the Purchaser
               has knowledge ( save for actual knowledge) will prejudice any
               claim made by the Purchaser in respect of the Secondary
               Warranties or will operate to reduce any amount recoverable in
<PAGE>

               respect of any breach of any of the Secondary Warranties or will
               operate to prevent any claim being made by the Purchaser for any
               breach by the Secondary Warrantor of the covenants implied by the
               Law of Property (Miscellaneous Provisions) Act 1994;

     4.8.3     warrants to the Purchaser that (save as aforesaid) all the
               Secondary Warranties will be fulfilled and will be true and
               accurate in all respects on the date hereof and on the day of
               Completion and that the Secondary Warrantor shall be entitled
               prior to Completion to make non-material disclosures to the
               Purchaser by way of the Supplemental Letter provided such non-
               material disclosures relate only to matters, facts or
               circumstances over which the Secondary Warrantor has acted at all
               times in good faith.

     4.8.4     will indemnify the Purchaser against any costs or expenses
               (including legal costs) which it reasonably and properly
               incurred, either before or after the commencement of any action
               leading to a claim (in this clause "claim" has the meaning set
               out in clause 4.6) to the extent that such costs or expenses when
               combined with any payment in respect of any claim do not exceed
               the warranty limit set out in clause 4.12.2, directly or
               indirectly as a result of any breach of any of the Secondary
               Warranties;

     4.8.5     undertakes to disclose to the Purchaser as soon as he becomes
               aware of any such matter anything which comes to the notice of
               him which is or may be a breach of any of the Secondary
               Warranties; and

     4.8.6     undertakes that, in the event of any claim being made against him
               under the Secondary Warranties, he will not make any claim
               against the Company, or against any director or employee of the
               Company, on which or on whom he may have relied before agreeing
               to any term of this Agreement or authorising any statement in the
               Disclosure Letter, but so that this undertaking will not preclude
               the Secondary Warrantor from claiming against any other Warrantor
               under any right of contribution or indemnity to which the
               Secondary Warrantor may be entitled.

4.9  Each of the Secondary Warranties will be construed as a separate Warranty
     and will not be limited or restricted by reference to, or inference from,
     the terms of any other Warranty or any other term of this Agreement.

4.10 In this Agreement, unless otherwise specified, where any Secondary Warranty
     refers to the knowledge, information, belief or awareness of the Secondary
     Warrantor (or similar expression), the Secondary Warrantor will be deemed
     to have such knowledge,
<PAGE>

     information, belief or awareness as the Secondary Warrantor has or should
     have obtained from either (a) attending the board meetings of the Company
     which he has actually attended or (b) his actual knowledge; and it shall
     not be a defence that the Secondary Warrantor did not appreciate the
     relevance or significance of any particular matter.

4.11 Subject to clause 4.8.3 if prior to Completion it shall be found that any
     of the Secondary Warranties including, for the avoidance of doubt, any
     Warranty given pursuant to clause 4.8.3 is materially breached or
     unfulfilled, the Purchaser shall be entitled by notice in writing to the
     Vendors to rescind this Agreement but failure to exercise such right in
     respect of any breach over which the Secondary Warrantor has not acted in
     good faith shall not constitute a waiver of any other rights of the
     Purchaser arising by reason of any breach of any of the Secondary
     Warranties and exercise of such right shall be without prejudice to any
     other rights and remedies the Purchaser may have under or in respect of
     this Agreement (but for the avoidance of doubt where the Secondary
     Warrantor has acted in good faith and the Purchaser does not exercise its
     right under this clause 4.11 to rescind this Agreement such failure shall
     constitute a waiver of any other rights of the Purchaser arising by reason
     of that breach of the Secondary Warranties).

4.12 In this clause 4.12 and clause 4.13 "claim" has the meaning set out in
     Clause 4.6 but substituting in such definition a reference to Clause 4.12
     and 4.13 in place of the reference to Clause 4.6 and 4.7 and a reference to
     Secondary Warrantor in place of the reference to Primary Warrantors.
     Notwithstanding the foregoing provisions of clause 4:

     4.12.1    the Secondary Warrantor will be under no liability to make any
               payment in respect of any claim unless it:

               (a)  is (Pounds)10,000 (after deducting any such costs as are
                    referred to in clause 4.8.4) or more in respect of any
                    single claim;

               (b)  is (when aggregated with his liability in respect of any
                    other claim or claims made by the Purchaser or which would
                    have been made but for the provisions of this clause 4.12.1)
                    in excess of (Pounds)10,000 (after deducting any such costs
                    as are referred to in clause 4.8.4) in which event the
                    Secondary Warrantor will (subject to the other provisions of
                    this clause 4.12) be liable for the whole amount of such
                    liability and not merely for the excess; and
<PAGE>

     4.12.2    the aggregate liability of the Secondary Warrantor in respect of
               all claims (by way of damages or otherwise) will be limited to
               (Pounds)84,000.

     4.12.3    the Secondary Warrantor will be under no liability to make any
               payment in respect of any claim or potential claim unless written
               particulars of the claim or potential claim (giving such
               reasonable details as are then available of the specific matter
               in respect of which such claim or potential claim is made) is
               given to the Secondary Warrantor by 24 September 2000 and if the
               Purchaser has not commenced legal proceedings in respect of any
               potential claim within 18 months of such notice, the Purchaser
               shall be deemed to have waived such potential claim in full.

4.13 Notwithstanding any other provision of this Agreement, the provisions in
     clause 4.12 shall not apply to exclude or limit the liability of the
     Secondary Warrantor to the extent that any claim or potential claim arises
     by reason of any fraud or dishonest, reckless or wilful misstatement or
     omission by or on behalf of the of the Secondary Warrantor.

Warranties from Tertiary Warrantors

4.14 The Tertiary Warrantors for himself (and not  jointly and severally):

     4.14.1    each warrants to the Purchaser in the terms of the Tertiary
               Warranties, provided however that the Purchaser will not be
               entitled to claim that any fact or combination of facts
               constitutes a breach of any of the Warranties if and to the
               extent that such fact or combination of facts has been fairly
               disclosed in the Disclosure Letter;

     4.14.2    agree that the Purchaser is entering into this Agreement in
               reliance on each of the Tertiary Warranties.

4.15 Each of the Tertiary Warranties will be construed as a separate Warranty
     and will not be limited or restricted by reference to, or inference from,
     the terms of any other Warranty or any other term of this Agreement.

4.16 In this clause 4.16 and clause 4.17 "claim" has the meaning set out in
     clause 4.6 but substituting in such definition a reference to clause 4.16
     and 4.17 in place of the reference to clause 4.6 and a reference to
     "Tertiary Warrantors" in place of the reference to "Primary Warrantors".
     Notwithstanding the foregoing provisions of clause 4:
<PAGE>

     4.16.1  the aggregate liability of the Tertiary Warrantors in respect of
             all claims (by way of damages or otherwise) will be limited to the
             value of $18,909,239$1,937,820 and the individual liability of each
             Tertiary Warrantor will be limited to that value as divided pro
             rata by the number of the Consideration Shares received by him as
             shown in Part 1 of Schedule 1;

     4.16.2  the Tertiary Warrantor will be under no liability to make any
             payment in respect of any claim or potential claim unless written
             particulars of the claim or potential claim (giving such reasonable
             details as are then available of the specific matter in respect of
             which such claim or potential claim is made) are given to the
             relevant Tertiary Warrantor within 12 months from the date of this
             Agreement and if the Purchaser has not commenced legal proceedings
             in respect of any potential claim within 18 months of such
             notice, the Purchaser shall be deemed to have waived such potential
             claim in full; and

4.17 Notwithstanding any other provision of this Agreement, the provisions of
     clause 4.16 shall not apply to exclude or limit the liability of the
     Tertiary Warrantors to the extent that any claim or potential claim arises
     by reason of any fraud by or on behalf of that Tertiary Warrantor.

5.   OTHER PROVISIONS RELATING TO WARRANTIES

5.1  The Purchaser hereby confirms that it has not relied on any representation,
     warranty, collateral agreement or undertaking of the Vendors (which term in
     this clause 5 means the Vendors acting in any capacity including, without
     limitation, as Warrantors) or any other persons save as expressly set out
     in this Agreement and the Disclosure Letter.

5.2  This Agreement constitutes the entire understanding and agreement between
     the parties hereto and no representation warranties collateral agreement or
     undertakings expressed or implied statutory or otherwise made by or on
     behalf of the Vendors in connection with or arising out of the sale of the
     Shares and which are not contained in or part of this Agreement or any
     agreement or side letter connected with the matters contemplated herein
     shall give rise to any liability on the part of the Vendors.

5.3  The Purchaser shall reimburse to the Vendors (or to such of them as shall
     have made the relevant payment) an amount equal to any sum paid by the
     Vendors under any of the Warranties which is subsequently recovered by or
     paid to the Purchaser or to the Group or any of them by a third party.
<PAGE>

5.4  In the event that the Purchaser or any Group Company shall be in receipt of
     any claim which, in the opinion of the Purchaser, might constitute or give
     rise to a breach of any of the Warranties the Purchaser shall as soon as
     reasonably practicable notify the relevant Warrantors giving full details
     so far as practicable.

5.5  The amount of any claim paid by the Warrantors under this Agreement shall
     be deemed to constitute a reduction in the purchase price.

5.6  Where a breach of any of the Warranties shall be in respect of a matter
     where the Purchaser shall be insured against loss or damage arising
     therefrom the Purchaser shall not pursue any claim against the Vendors for
     breach of any such Warranty without first making a claim against its
     insurers for compensation for the loss or damage suffered (but the
     Purchaser shall notify the Vendor with written particulars of such breach
     which notification shall have the effect of postponing the time limitations
     pursuant to clauses 4.6, 4.12 and 4.16 by the length of time it takes to
     establish conclusively that compensation will or will not be paid by the
     said insurers and the amount of any such compensation) and thereafter any
     claim against the Vendors shall be limited (in addition to the limitation
     on the Vendors' liability elsewhere referred to herein) to damage suffered
     by the Purchaser as a result of such breach to the extent that such claim
     shall exceed the compensation paid by the said insurers to the Group.

5.7  If any breach or claim arising under the Warranties shall arise by reason
     of some liability of a company within the Group which at the time the
     breach is notified to the relevant Warrantors is contingent only then such
     Warrantors shall not be under any obligation to make payment to the Group
     or the Purchaser or the company in question hereunder until such time as
     the contingent liability ceases to be contingent but notice to the relevant
     Warrantors will mean the time limitations pursuant to clauses 4.6, and 4.12
     and 4.16 in respect of such a claim shall be extended by the period from
     the date of the Purchaser giving notice of the claim to the date upon which
     the contingent liability ceases to be contingent. the time limitations

5.8  The Purchaser shall take and procure that each Group Company shall take all
     reasonable steps necessary to mitigate any loss in relation to any claim
     against any Group Company which might constitute a breach of any of the
     Warranties on becoming aware that such circumstances exist as to give rise
     to a claim pursuant hereto.

5.9  No liability shall attach to the Primary Warrantors in respect of a breach
     of the Warranties to the extent that:
<PAGE>

     5.9.1  such claim has been or is compensated by the discharge or
            ascertainment of any liability for an amount less than that shown or
            provided for in the Accounts;

     5.9.2  if and to the extent that any such breach or claim occurs as a
            result of any increase in the rate of taxation or an alteration in
            the practice and custom of the Inland Revenue or other taxation
            Authority from that in force at the date hereof;

     5.9.3  if and to the extent that any such breach or claim is wholly or
            partially attributable to or arises from any voluntary act,
            omission, transaction or arrangement of or carried out:

            (a)  at any time after Completion by any of the Purchaser, a Group
                 Company or their respective successors in title from time to
                 time or any subsidiary or associated company or any of the
                 foregoing at any time after Completion;

            (b)  by the Company at any time after the date hereof with the prior
                 written agreement of the Purchaser or, as permitted by clause
                 87.3, without the consent of the Purchaser.

     5.9.4  allowance, provision or reserve has been made in the Accounts in
            respect of the matter to which such liability relates; and

     5.9.5  to the extent that any taxation for which the Company is or may be
            liable to be assessed or accountable is reduced or extinguished as a
            result of any such claim or liability; and

     5.9.6  any losses or other allowable sums previously utilised become
            available for set-off against taxation.

5.10 All amounts available for set-off or otherwise liable to be deducted
     pursuant to clause 5.95.8 shall first be taken into account for the purpose
     of determining the amount of loss sustained in connection with the de
     minimis limits referred to in clauses 4.6 ,and 4.154.12. and 4.19.

5.11 The Purchaser shall not be entitled to claim that any fact or circumstance
     constitutes a breach of any of the Warranties if such fact or circumstances
     has been fairly disclosed in this Agreement, in the Accounts or in the
     Disclosure Letter.

5.12 Neither the Purchaser nor any Group Company, shall be entitled to recover
     any sum in respect of any claim for breach of any of the Warranties or
     otherwise obtain
<PAGE>

     reimbursement or restitution more than once in respect of any one breach of
     the Warranties.

5.13 Nothing herein or in the Warranties contained shall be deemed to relieve
     the Purchaser or any Group Company from any common law duty to mitigate any
     loss or damage incurred by them.

6.   RESTRICTIVE COVENANTS

6.1  For the purpose of assuring to the Purchaser the full benefit of the
     Company and in consideration for the Purchaser agreeing to buy the Shares
     on the terms of this Agreement, the Primary Warrantors, James Chapman and
     Simon Hughes, subject to the undernoted exceptions, each (for themselves
     and not jointly and severally) undertake to the Purchaser that he will not,
     without the prior written consent of the Purchaser, whether directly or
     indirectly and whether alone or in conjunction with, or on behalf of, any
     other person and whether as principal, shareholder, director, employee,
     agent, consultant, partner or otherwise:

     6.1.1  with the exception of James Chapman and Simon Hughes for a period of
            3 years immediately following Completion, canvass, solicit or
            approach, or cause to be canvassed, solicited or approached, for
            orders any person who at any time during the twelve months
            immediately preceding the date of Completion is or was:

            6.1.1.1  negotiating with the Company for the supply by the Company
                     of goods or services; or

            6.1.1.2  a client or customer of the Company; or

            6.1.1.3  in the habit of dealing with the Company,

            where the orders relate to goods and/or services which are
            competitive with those supplied by the Company at any time during
            the twelve months immediately preceding the date of Completion;

     6.1.2  with the exception of James Chapman and Simon Hughes for a period of
            3 years immediately following Completion, deal or contract with any
            person who at any time during the twelve months immediately
            preceding the date of Completion is or was:

            6.1.2.1  negotiating with the Company for the supply by the Company
                     of goods or services; or
<PAGE>

            6.1.2.2  a client or customer of the Company; or

            6.1.2.3  in the habit of dealing with the Company,

            where the dealing or contracting relates to goods and/or services
            which are competitive with or of the type those supplied by the
            Company at any time during the twelve months immediately preceding
            the date of Completion;

     6.1.3  with the exception of James Chapman and Simon Hughes for a period of
            three years immediately following Completion, interfere, or seek to
            interfere, with the continuance of supplies to the Company from any
            supplier who has been supplying goods and/or services to the Company
            at any time during the twelve months immediately preceding the date
            of Completion if such interference causes or would cause that
            supplier to cease supplying, or materially reduce its supply of,
            those goods and/or services to the Company;

     6.1.4  for a period of three years immediately following Completion,
            solicit or entice, or endeavour to solicit or entice, away from the
            Company, or employ, any person employed who is or was employed in a
            managerial, technical or sales capacity by, or who is or was a
            consultant to, the Company at any time during the period of 1 month
            immediately preceding the date of Completion;

     6.1.5  within Europe for a period of 18 months immediately following
            Completion, be engaged, concerned or interested in, or provide
            technical, commercial or professional advice to, any other business
            which supplies goods and/or services which are competitive with
            products and technologies relating to the efficient traffic
            management and engineering service within broadband
            telecommunications platforms including but not limited to techniques
            to classify and manage traffic flows but excluding, for the
            avoidance of doubt, the underlying telecommunications systems
            themselves; provided that this restriction does not apply to prevent
            either of the Primary Warrantors, James Chapman and Simon Hughes
            from being employed by the Company or the Purchaser or any member of
            the Group or holding shares or other securities in any company which
            are quoted, listed or otherwise dealt in on a recognised stock
            exchange or other securities market and which confer not more than 3
            per cent of the votes which could be cast at a general meeting of
            such company; or
<PAGE>

     6.1.6  use in connection with any business any name which includes the
            current name of the Company or any colourable imitation of it.

6.2  The Primary Warrantors, James Chapman and Simon Hughes (for themselves and
     not jointly and severally) each acknowledge that they have (or may have)
     information in respect of the business and financing of the Company and its
     dealings, transactions, affairs, plans and proposals, all of which
     information is, or may be, secret or confidential and important to the
     Company. In this clause 6 such information is called "Confidential
     Information" and includes, without limitation, confidential or secret
     information relating to the Company's trade secrets, know-how, ideas,
     business methods, finances, prices, business plans, marketing plans,
     development plans, manpower plans, sales targets, sales statistics,
     customer lists, customer relationships, computer systems and computer
     software. Each of the Primary Warrantors, James Chapman, and Simon Hughes
     further acknowledge that the disclosure of Confidential Information
     (whether directly or indirectly) to actual or potential competitors of the
     Company could place it at a competitive disadvantage and may do damage
     (whether financial or otherwise) to its business. Each of the Primary
     Warrantors, James Chapman and Simon Hughes accordingly agree to enter into
     the restrictions contained in clause 6.3.

6.3  Each of the Primary Warrantors, the Secondary Warrantor, James Chapman and
     Simon Hughes (for themselves and not jointly and severally) undertake that
     he will not after the date hereof:

     6.3.1  disclose to any person except to those authorised by the Company to
            know;

     6.3.2  use for his own purposes or for any purposes other than those of the
            Company; or

     6.3.3  through any failure to exercise all due care and diligence cause or
            permit any unauthorised disclosure of any Confidential Information,
            provided that these restrictions on him will cease to apply to
            information which (otherwise than through the default of such
            Vendor) comes into the public domain.

6.4  The parties agree that each of the undertakings set out in this clause 6 is
     separate and severable and enforceable accordingly and if any one or more
     of such undertakings or part of an undertaking is held to be against the
     public interest or unlawful or in any way an unreasonable restraint of
     trade, the remaining undertakings or remaining part of the undertakings
     will continue in full force and effect and will bind each of the Primary
     Warrantors, James Chapman and Simon Hughes but not their successors in
     title.
<PAGE>

7.   CONDITIONS AND COMPLETION

7.1  Completion is conditional upon:

     7.1.1  the demerger of EPL Limited;

     7.1.2  the re-registration of the Company as a private company limited by
            shares;

     7.1.3  the signing of the agreement between Commerz Beteiligungs
            Gesellschaft GmBH and certain Vendors terminating a Subscription and
            Shareholders Agreement dated 25 September 1998 in the agreed terms.;

     7.1.4  signing the Stakeholders Agreement in the agreed terms;

     7.1.5  signing the Primary Warrantors' Warranty Settlement Agreement.

7.2  The parties shall use their respective best endeavours to procure that the
     conditions stated in clause 7.1 are fulfilled as soon as practicable and in
     any event on or before midnight 26 May 2000. In the event that the
     Conditions have not been fulfilled by midnight 26 May 2000 or by such later
     date as may be agreed in writing between the Vendors and the Purchaser,
     this Agreement shall, save for this clause 7.2 and clause 9, thereupon
     become null and void and none of the parties shall have any rights against
     any other party under this Agreement except for breach of this clause 7.2
     or clause 9.

7.3  The Vendors shall, so far as they are each able, procure that between the
     time of the execution of this Agreement and Completion the Company will
     carry on business in the ordinary course and will not do anything which is
     not of a routine unimportant nature without the prior written consent of
     the Purchaser such consent not to be unreasonably withheld conditioned or
     delayed. The following acts by the Company and/or the Subsidiaries or any
     agreement by the Company and/or the Subsidiaries to do any of the following
     acts, shall, but without limitation, be deemed not to be of a routine
     unimportant nature:

     7.3.1  incurring any expenditure exceeding (Pounds)2,000 on capital account
            or entering into any commitment to do so;

     7.3.2  save for the demerger of EPL Limited disposing of any part of its
            assets in the ordinary course of trading;

     7.3.3  borrowing any money except under its existing overdraft facilities
            from its bankers or making any payments out of or drawings on its
            bank account
<PAGE>

            other than payments in the ordinary course of business or to meet
            obligations outstanding at the date hereof and disclosed in the
            Disclosure Letter;

     7.3.4  entering into any guarantee or indemnity;

     7.3.5  entering into any unusual or abnormal Contract (as defined in
            paragraph 1.1 of Schedule 4) or commitment;

     7.3.6  granting any lease or third party right in respect of the Property
            or assigning or otherwise disposing of the same (or any part
            thereof);

     7.3.7  making any loan;

     7.3.8  entering into any leasing, hire purchase or other agreement or
            arrangement for payment on deferred terms;

     7.3.9  declaring, making or paying any dividend or other distribution;

     7.3.10 granting any security;

     7.3.11 appointing any additional director;

     7.3.12 taking on new employees or terminating the employment of any
            employees or making any change in the terms or conditions of
            employment or pension benefits of any employees;

     7.3.13 permitting any insurance to lapse or doing anything which would make
            any policy of insurance void or voidable;

     7.3.14 creating or issuing any class of share or loan capital;

     7.3.15 making any change in its business structure or organisation; and

     7.3.16 doing or omitting to do, or causing or allowing to be done or
            omitted to be done, any act or thing which would result or be likely
            to result in a breach of any of the Warranties at Completion.

7.4  Provided that this Agreement has not been rescinded and provided also that
     the conditions stated in clause 7.1 have been satisfied or waived by
     written notice, Completion of the sale and purchase of the Shares will be
     completed at the offices of the Vendors' Solicitors on or before midnight
     26 May 2000 ("Completion") when:

     7.4.1  the Vendors will produce and deliver to the Purchaser:
<PAGE>

            7.4.1.1  duly executed transfers of the Shares in favour of the
                     Purchaser together with all relevant share certificates (or
                     in the case of any lost certificate an indemnity
                     satisfactory to the Purchaser in relation to it) and
                     together also with such waivers and consents as the
                     Purchaser may require to enable the Purchaser to be
                     registered as the holders of the Shares (subject to the
                     said transfers being produced to the Company duly stamped);

            7.4.1.2  written resignations from all directors and the secretary
                     of the Company and the Subsidiaries in the agreed terms;

            7.4.1.3  the written resignation of Horwarth Clark Whitehill as
                     auditors of the Company accompanied by the statement
                     referred to in section 392 of the Act;

            7.4.1.4  the certificate of incorporation, any certificate(s) of
                     incorporation on change of name, the common seal and the
                     statutory books and registers (all entered up to date) of
                     the Company and ADSL Limited;

            7.4.1.5  at the offices of the Company all deeds and documents
                     relating to the title of the Company to the Property;

            7.4.1.6  all cheque books of the Company in current use;

            7.4.1.7  bank statements in respect of each account of the Company
                     as at the close of business on the last Business Day prior
                     to Completion, together in each case with a reconciliation
                     statement prepared by the Primary Warrantors to show the
                     position at Completion (listing unpresented cheques drawn
                     or received by the Company and standing orders payable
                     since the date of such bank statements);

            7.4.1.8  at the offices of the Company all papers, books, records,
                     keys, credit cards and other property (if any) of the
                     Company which are in the possession or under the control of
                     the Vendors or any other person who resigns as an officer
                     of the Company in accordance with this clause 7;

            7.4.1.9  duly executed powers of attorney in the agreed terms;
<PAGE>

            7.4.1.10  any other documentation not referred to above but included
                      in the Stakeholders Agreement under the description of
                      Vendors' Deliverables;

     7.4.2  each Vendor will:

            7.4.2.1   repay, and will procure that any spouse or child of such
                      Vendor or any company of which such Vendor (and/or any
                      such spouse or child) has control (as defined in section
                      840 Income and Corporation Taxes Act 1988) will repay, all
                      amounts owed by him, her or it to the Company, whether due
                      for payment or not;

            7.4.2.2   deliver to the Purchaser a deed in the agreed terms
                      acknowledging that neither such Vendor nor any such
                      spouse, child or company has any claim against the Company
                      and that there is no agreement or arrangement under which
                      the Company has any actual, contingent or prospective
                      obligation (including, but not limited to, any obligation
                      under any guarantee entered into by the Company) to or in
                      respect of any of them; and

            7.4.2.3   in respect of any such agreement or arrangement as is
                      referred to in clause 7.4.2.2 which previously existed
                      deliver to the Purchaser evidence of the release or
                      termination of it in a form satisfactory to the
                      Purchaser;.

     7.4.3  the Vendors will, so far as they are each able, procure that duly
            convened meetings are held at which:

            7.4.3.1   the transfers referred to in clause 7.4.1.1 (subject to
                      stamping if not previously effected) are approved for
                      registration in the books of the Company;

            7.4.3.2   new articles of association are adopted by the Company in
                      the agreed terms;

            7.4.3.3   persons nominated by the Purchaser are appointed as
                      directors of the Company and the Subsidiaries, and any
                      person nominated by the Purchaser is appointed as
                      secretary of the Company and the Subsidiaries;

            7.4.3.4   all existing instructions to the bankers of the Company
                      are revoked and new instructions given to such bankers as
                      the
<PAGE>

                      Purchaser may nominate, in such form as the Purchaser
                      directs; and

            7.4.3.5   the Optionholders will each produce and deliver to the
                      Purchaser a signed Form of Election exchanging its Share
                      Options for TUT Options in the agreed terms.

            the Vendors will, so far as they are each able, procure that David
            Birss and Ian Moir enter into side letters in respect of their
            service agreements with the Company in the agreed terms; and

     7.4.4  The Purchaser will satisfy the consideration as provided by Clause
            3.

7.5  If in any respect the provisions of clause 7.3 or 7.4 are not complied with
     by one or more of the Vendors or the Purchaser on Completion the other
     party may (subject to it being ready willing and able to comply with its
     obligations):

            7.5.1.1   (in the case of non-compliance with clause 7.4) defer
                      Completion to not more than fourteen days after the date
                      for Completion as set by clause 7.4; or

            7.5.1.2   proceed to Completion so far as practicable without
                      prejudice to its rights under this Agreement; or

            7.5.1.3   rescind this Agreement without prejudice to any rights or
                      remedies available to it under this Agreement.

7.6  The Purchaser will upon Completion transfer 50% of the Shares in the
     Company to one of its wholly owned US subsidiaries ("US 1") and the
     remaining 50% of the Shares in the Company to another of its wholly owned
     US subsidiaries ("US 2") thereafter, the Purchaser will procure that US 1
     and US 2 will transfer their respective shareholdings in the Company to a
     further US subsidiary ("US 3") which is owned as to 50% by US 1 and 50% by
     US 2.

8.   ANNOUNCEMENTS

8.1  No announcement concerning the transactions contemplated by this Agreement
     or any matter ancillary to it and no disclosure of the terms of this
     Agreement will (save as required by law including any law of the United
     States of America or any state therein or the regulations of NASDAQ or the
     City Code on Takeovers & Mergers or any law of the United Kingdom) be made
     by the Vendors or the Purchasers except with the prior written approval of
     the other party. Where either party is under any legal or regulatory
     requirement to make any announcement it shall use its reasonable endeavours
     to agree the form, wording and timing of such announcement with the
<PAGE>

     other party hereto prior to such announcement being made. After Completion
     the Purchaser shall not be bound by the restrictions contained in this
     clause 8.1 and to the extent that any announcement is made as a result of a
     requirement by law or the regulations of NASDAQ, the Vendors shall be free
     to make any similar announcement.

8.2  The Vendors shall, shall so far as they are each able, at the request of
     the Purchaser supply to the Purchaser all such information and reports with
     regard to the Company and the Subsidiaries as they may have which is
     required by the Purchaser to enable it to comply with the requirements of
     the law including any law of the United States of America or any State
     therein or NASDAQ regarding the transaction to which this Agreement
     relates. The Purchaser shall at the request of the Vendors supply to the
     Vendors all such information and reports with regard to the Purchaser and
     the Group and its entering into this Agreement, in so far as it is able to
     do so, as may be required by the Vendors to enable them to comply with the
     requirements of the law including any law of the United Kingdom or City
     Code on Takeovers and Mergers regarding the transaction to which this
     Agreement relates.

9.   COSTS

     Each party to this Agreement will bear such party's own costs and expenses
     relating to the preparation and completion of this Agreement, except where
     otherwise expressly stated.

10.  INTEREST

     If any party becomes liable to pay to another party other any sum pursuant
     to this Agreement, whether a liquidated sum or by way of damages or
     otherwise, such party will be liable to pay interest on such sum from the
     due date for payment at the annual rate of 3 per cent above the base
     lending rate from time to time of Barclays Bank plc accruing on a daily
     basis until payment is made, whether before or after any judgement.

11.  NOTICES

11.1 Any demand, notice or other communication given or made under or in
     connection with this Agreement will be in writing.

11.2 Any such demand, notice or other communication will, if otherwise given or
     made in accordance with this clause 11, be deemed to have been duly given
     or made as follows:
<PAGE>

     11.2.1  if sent by prepaid first class post, on the second Business Day
             after the date of posting; or

     11.2.2  if delivered by hand, upon delivery at the address provided for in
             this clause 11; or

     11.2.3  if sent by facsimile, on the day of transmission provided that a
             confirmatory copy is, on the same Business Day that the facsimile
             is transmitted, sent by pre- paid first class post in the manner
             provided for in this clause 11,

     provided however that, if it is delivered by hand or sent by facsimile on a
     day which is not a Business Day or after 4 pm Greenwich Mean Time on a
     Business Day, it will instead be deemed to have been given or made on the
     next Business Day.

11.3 Any such demand, notice or other communication will, in the case of service
     by post or delivery by hand, be addressed (subject as provided in this
     clause 11) to the recipient at the recipient's address stated in this
     Agreement or at such other address as may from time to time be notified in
     writing by the recipient to the sender as being the recipient's address for
     service, provided that:

     11.3.1  in the case of a company it may instead (at the option of the
             sender) be addressed to its registered office for the time being;
             and

     11.3.2  if given or made to any one of the Vendors or his or her personal
             representatives it will be treated as validly given if given to the
             Vendor's Solicitors;

     11.3.3  if given or made to the Purchaser, it will be treated as validly
             given if given to the Purchaser's Solicitors.

     Any demand, notice or communication will be deemed to have been given to
     the personal representatives of a deceased Vendor, notwithstanding that no
     grant of representation has been made in respect of such Vendor's estate,
     if the notice is addressed either to the deceased Vendor by name or to the
     deceased Vendor's personal representatives by title, at the Vendor's
     address in accordance with the foregoing provisions of this clause 11.3 or
     at such other address as may have been notified by them in writing to the
     sender as being their address for service, and is otherwise served in
     accordance with the foregoing provisions.

11.4 Any such demand, notice or other communication will, in the case of service
     by facsimile, be sent to the recipient or to any person service on whom (in
     accordance with the foregoing provisions of this clause 11) is deemed to be
     service on the
<PAGE>

     recipient, using a facsimile number then used by the recipient or (as the
     case may be) such other person at an address which (in accordance with such
     provisions) could have been used for service by post.

11.5 The provisions of this clause 11 will not apply, in the case of service
     court documents, to the extent that such provisions are inconsistent with
     Part 6 of the Civil Procedure Rules.

11.6 The Purchaser hereby irrevocably instructs the Purchaser's Solicitors to
     act as its agent for service and to accept service on its behalf of any
     proceedings that the Purchaser may issue in connection with this Agreement
     and the Vendors hereby irrevocably instruct the Vendors' Solicitors to act
     as its agent for service and to accept service on its behalf of any
     proceedings that the Purchaser may issue in connection with this Agreement.

12.  GENERAL

12.1 This Agreement (except where expressly provided to the contrary) will be
     binding on and will enure for the benefit of each party's successors,
     permitted assigns and personal representatives (as the case may be).

12.2 Except insofar as the same have been fully performed at Completion, each of
     the agreements, covenants, obligations, warranties, indemnities and
     undertakings contained in this Agreement will continue in full force and
     effect notwithstanding Completion.

12.3 The parties agree that they will do all such acts and things and execute
     all such documents as may reasonably be required on or subsequent to
     Completion to vest in the Purchaser legal and beneficial ownership of the
     Shares in accordance with this Agreement and otherwise to give effect to
     its terms.

12.4 Save as expressly provided otherwise, Failure failure or delay by any party
     in exercising any right or remedy under this Agreement will not in any
     circumstances operate as a waiver of it, nor will any single or partial
     exercise of any right or remedy in any circumstances preclude any other or
     further exercise of it or the exercise of any other right or remedy.

12.5 Any waiver of any breach of, or any default under, any of the terms of this
     Agreement will not be deemed a waiver of any subsequent breach or default
     and will in no way affect the other terms of this Agreement.
<PAGE>

12.6   The Purchaser may release or compromise the liability of, or grant time
       or any other indulgence to, any person who is a party to this Agreement
       without in any way prejudicing or affecting the liability (whether joint
       and several or otherwise) to the Purchaser of any other person who is a
       party to this Agreement.

12.7   In the event of any claim being made against the Warrantors under the
       Warranties, the Warrantors shall not plead against such claim the Statute
       of Limitations Act 1980 or any other statute (present or future) directly
       or indirectly consolidating, extending, replacing or re-enacting the
       same, or any other rule of law relating to limitation of time in which an
       action can be brought or claim made; provided that this clause 12.7 is
       without prejudice to any express provision of this Agreement regarding
       time limits for notifying or making claims.

12.8   Save as expressly otherwise provided, the rights and remedies expressly
       provided for by this Agreement will not exclude any rights or remedies
       provided by law.

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

12.10  The formation, existence, construction, performance, validity and all
       aspects whatsoever of this Agreement or of any term of this Agreement
       shall be governed by English law. The English Courts shall have
       jurisdiction to settle any disputes which may arise out of or in
       connection with this Agreement. The jurisdiction agreement contained in
       this clause 12.10 is made for the benefit of the Purchaser only, which
       accordingly retains the right to bring proceedings in any other court of
       competent jurisdiction. The parties agree to submit to the said
       jurisdiction.

12.11  Save as provided in Clauses 12.12 and 12.13, the Purchaser may not assign
       transfer or change charge this Agreement or any of its rights under it,
       nor attempt to purport to do any of the same, nor sub-contract any or all
       of its obligations under this Agreement.

12.12  The Purchaser shall be entitled to assign all but not some of its rights
       under this Agreement to any member of its Group provided that the
       Purchaser shall procure that any such company to whom it assigns any of
       its rights under this Agreement shall reassign such rights to the
       Purchaser immediately prior to its ceasing to be a member of the
       Purchaser's Group. Any assignment made pursuant to this Clause 12.12
       shall be subject to the following terms:

       12.12.1  that it shall not relieve the Purchaser of any of its
                obligations under this Agreement; and
<PAGE>

       12.12.2  the assignee acknowledges that the other parties may continue to
                deal exclusively with the Purchaser in respect of all matters
                relating to this Agreement at all times unless and until the
                assignee notifies all of the other parties in writing that it is
                exercising its rights as assignee.

12.13  Having obtained the prior written consent of all the other parties to
       this Agreement the Purchaser shall be entitled to assign all but not some
       of its rights under this Agreement to a named third party provided that
       following such assignment, any obligations or liabilities of any of the
       other parties shall forthwith cease and determine.
<PAGE>

                                  SCHEDULE 1

                                    Part 1

                                  The Vendors


<TABLE>
<CAPTION>
----------------------------------------------------------------------------------------------------------------
        Name                                   Number and                 Amount of              Amount of
                                             class of Shares           Consideration            Cash to be
                                               to be sold               Shares to be             Received
                                                                          received
----------------------------------------------------------------------------------------------------------------
<S>                                          <C>                       <C>                      <C>
 David Birss                                      1,494,234                38,958                  8,870
 12 Cleveden Road
 Tilehurst
 Reading
 Berkshire RG13 6RL
----------------------------------------------------------------------------------------------------------------
 James Chapman                                      206,958                 5,396                  1,230
 11 Folly Green
 Woodcote
 Nr Reading
 Berkshire  RG8 0ND
----------------------------------------------------------------------------------------------------------------
 Alice Cheng c/o 15A Ginahgulla                     577,526                15,057                  3,430
 Road
 Bellevue Hill
 Sydney
 NSW 2023 Australia
----------------------------------------------------------------------------------------------------------------
 Clarendon Nominees Limited                         926,119                24,146                  5,500
 Sir Walter Raleigh House
 48-50 The Esplanade
 St Helier Jersey
 Channel Islands
----------------------------------------------------------------------------------------------------------------
 Clarendon Trust Co Limited                         681,283                17,762                  4,040
 Sir Walter Raleigh House
 48-50 The Esplanade
 St Helier Jersey
 Channel Islands
----------------------------------------------------------------------------------------------------------------
 Commerz Beteiligungs GmbH                        6,250,000               162,950                 37,100
 Bad Homburg vdh
 Kaiserstr 16
 D-60311
 Frankfurt am Main
 Germany
----------------------------------------------------------------------------------------------------------------
 Simon Hughes                                       147,827                 3,854                    880
 Mimosa House
 32 Magrath Avenue
 Cambridge CB4 3AH
----------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>

<TABLE>
----------------------------------------------------------------------------------------------------------------
<S>                                              <C>                      <C>                    <C>
 Makinen Properties Limited                         660,028                17,208                  3,920
 8/F GPI Building
 30-34 Kwai Wing Road
 Northern Territories
 Hong Kong
----------------------------------------------------------------------------------------------------------------
 Mees Pierson (Cayman) Limited                    1,732,574                45,172                 10,290
 as trustee of Sofaer Funds / SCI
 Global Hedge Fund
 C/o Sofaer Capital
 Management Ltd
 22/F Entertainment Building
 30 Queens Road Central
 Hong Kong
----------------------------------------------------------------------------------------------------------------
 HSBC Financial Services (Cayman)                 2,262,627                58,991                 13,430
 Limited solely as trustee of
 the Abel-Sci Venture Fund
 PO Box 1109 GT, Mary Street
 Grand Cayman
 Caymans Island
----------------------------------------------------------------------------------------------------------------
 Ian Moir                                         1,494,234                38,958                  8,870
 Quince house
 Beckfords,
 Upper Basildon
 Berkshire
----------------------------------------------------------------------------------------------------------------
 Pearl Finance Limited                              165,007                 4,302                    980
 PriceWaterhouse Coopers,
 22 Colomberie
 St Helier
 Jersey
 Channel Islands
----------------------------------------------------------------------------------------------------------------
 Sandford Children's Trust                           30,000                   782                    180
 Oaklands Lane
 Arkley
 HERTS EN5 3JN
----------------------------------------------------------------------------------------------------------------
 Raleigh Nominees Limited                           214,836                 5,601                  1,280
 Sir Walter Raleigh House
 48-50 The Esplanade
 St Helier, Jersey
 Channel Islands
----------------------------------------------------------------------------------------------------------------
 TOTAL:                                          16,843,253               439,137                100,000
----------------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>

                                    Part 2

                               The Optionholders

<TABLE>
<CAPTION>
----------------------------------------------------------------------------------------------------------
           Name and address of         No. of Share Options              Amount of TUT
              Optionholder             held and option price           Options to be granted

----------------------------------------------------------------------------------------------------------
<S>                                    <C>                             <C>
          Anthony Hewlett                    50,000 shares @ 25p                1304

----------------------------------------------------------------------------------------------------------
           Stephen Maslen                    50,000 shares @ 25p                1304

----------------------------------------------------------------------------------------------------------
          Sir Ronald Mason                   50,000 shares @ 25p                1304

----------------------------------------------------------------------------------------------------------
           Mark Hambleton                    76,678 @ 35p                       1999

----------------------------------------------------------------------------------------------------------
           Graham Newton                     66,941 @ 35p                       1745

----------------------------------------------------------------------------------------------------------
           Daniel Hayes                      44,000 @ (Pounds)1                 1147

----------------------------------------------------------------------------------------------------------
        Nicholas Lambourn                    35,000 @ (Pounds)1                  913

----------------------------------------------------------------------------------------------------------
          Roger Orchard                      18,000 @ (Pounds)1                  469

----------------------------------------------------------------------------------------------------------
          David Spence                       26,000 @ (Pounds)1                  678

----------------------------------------------------------------------------------------------------------
            TOTAL:                           416,619                          10,863

----------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>

                                  SCHEDULE 2

                            Details of the Company

Name of Company               :      Xstreamis Plc

Registered number             :      3011154

Registered office             :      30 Aylesbury Street, London EC1R 0ER

Date of incorporation         :      18 January 1995

Place of incorporation        :      England and Wales

Status of Company             :      Private Public limited company

Authorised share capital      :      (Pounds)750,000 divided into 30,000,000
                                     Ordinary shares of 2.5 pence each

Issued share capital          :      (Pounds)421,081.32  divided into 16,843,253
                                     Ordinary shares of 2.5 pence each

Directors' full names         :      Paul Lancelot Banner
                                     David Birss
                                     Philip Corbishley
                                     Jeremy Green
                                     Anthony Michael Hewlett
                                     Sir Ronald Mason
                                     Ian Moir
                                     James Powell-Tuck
Secretary's full name         :      Masons Secretarial Services Limited

Accounting reference date     :      31 March

Auditors                      :      Horwath Clark Whitehill

Bankers                       :      Lloyds Bank Plc


<PAGE>

                                  SCHEDULE 3

                                 The Property

A Licence dated 27 November 1998 granted by Prudential Development Management
Limited and Magdalen Development Company Limited ("the Licence") to the Company
to occupy an area of floor space measuring 2015 Square feet in the building
known as Magdalen Centre, Oxford Science Park, Oxford.


Use: Developing and marketing products and technologies relating to
telecommunications systems.
<PAGE>

                                  SCHEDULE 4

                            Non-Taxation Warranties

1.   Interpretation

     In this Schedule 4:

1.1  the following expressions have the following meanings unless inconsistent
     with the context:

     "the Accounting Date"         31 March 1999

     "Accounting Standards"        the statements of standard accounting
                                   practice referred to in section 256 of the
                                   Act issued by the Accounting Standards Board
                                   or such other body as may have been
                                   prescribed thereunder by the Secretary of
                                   Stateat the relevant time, including, without
                                   limitation, the statements of standard
                                   accounting practice formerly issued by the
                                   Accounting Standards Committee and since
                                   adopted by the Accounting Standards Board and
                                   any financial reporting standards issued by
                                   the Accounting Standards Board or such other
                                   body as aforesaid

     "the Accounts"                the audited accounts of the Company for the
                                   financial year which ended on the Accounting
                                   Date, comprising a balance sheet, a profit
                                   and loss account, notes and directors' and
                                   auditors' reports

     "Computer Systems"            all computer hardware, software,
                                   microprocessors and firmware and any other
                                   items that connect with any or all of them
                                   which in each case are used in the Company's
                                   business or are in the possession of the
                                   Company

     "Contract"                    any agreement or commitment whether
                                   conditional or unconditional and whether by
                                   deed, under hand, or oral or otherwise, and
                                   any arrangement or understanding whether
                                   legally binding or not
<PAGE>

     "Economic and Monetary        the existing system of single or unified
      Union"                       currency known as the Euro

     "EHS Law"                     all or any Laws from time to time with regard
                                   to EHS Matters

     "EHS Matters"                 all or any matters relating to the pollution
                                   or protection of the Environment or harm to
                                   or the protection of human health and safety
                                   or the health of animals and plants

     "EHS Permits"                 all or any permits, consents, licences,
                                   approvals certificates and other
                                   authorisations required by EHS Law for the
                                   operation of the business of the Company or
                                   the state or use of the Property

     "EMU Entry Date"              1 January 1999 and shall also include in
                                   addition the date or dates on which the
                                   United Kingdom or any part of it enters into
                                   Economic and Monetary Union

     "EMU Systems"                 all equipment, systems, plant and machinery
                                   used by the Company

     "Environment"                 any air (including air within natural or man-
                                   made structures above or below ground); water
                                   (including territorial, coastal and inland
                                   waters and ground water and water in drains
                                   and sewers); and land (including the seabed
                                   or river bed under any water), surface land
                                   and sub-surface land

     "ERA"                         the Employment Rights Act 1996

     "Euro"                        the European single currency
<PAGE>

     "Hazardous Substances"        any matter, whether alone or in combination
                                   with any other matter capable of causing harm
                                   to man or any other living organism or
                                   damaging to the Environment or public health
                                   or welfare, including without limitation
                                   radioactive matter, ozone depleting
                                   substances, and genetically modified
                                   organisms

     "ICTA"                        Income and Corporation Taxes Act 1988

     "Insider"                     any Vendor, any past or present director of
                                   the Company, and/or any person who is or was
                                   at the relevant time connected with any
                                   Vendor or any such director

     "Intellectual Property        any and all patents, trade marks, service
      Rights"                      marks, copyright, moral rights, rights in a
                                   design, know-how, confidential information
                                   and all or any other intellectual or
                                   industrial property rights whether or not
                                   registered or capable of registration and
                                   whether subsisting in the United Kingdom or
                                   any other part of the world together with all
                                   or any goodwill relating or attached thereto

     "Laws"                        all or any applicable law (whether criminal,
                                   civil or administrative), common law,
                                   judgement, court order, statute, statutory
                                   instrument, regulation, directive, European
                                   Community decision (insofar as legally
                                   binding), bye-law, treaty, government
                                   circular, code of practice and guidance
                                   notes, or instruction or decision of any
                                   competent regulatory body

     "Millennium Compliance        a technical audit of the Computer Systems to
      Audit"                       ensure they are Millennium Compliant

     "Millennium Compliant"        the meaning set out or referred to in
                                   paragraph 16.1
<PAGE>

1.2  a person will be deemed to be a party to a Contract if that person is, or
     has agreed to become, entitled to benefit under such Contract or if that
     person has obligations or liabilities or has agreed to assume obligations
     or liabilities under such Contract, in each case whether as an original
     party thereto or by virtue of assignment, novation or otherwise howsoever;
     and

1.3  any question as to whether a person is connected with any other person will
     be determined in accordance with section 839 ICTA, which will apply in
     relation to the Warranties as it applies in relation to ICTA.


                                    PART 1

Non taxation Warranties given by the Primary Warrantors

2.   Schedules 1 & 2; Capital

2.1  The information contained in Schedules 1 and 2 is true, complete and
     accurate in all respects.

2.2  The Shares are in issue fully paid and each of the Primary Warrantors is
     the sole beneficial and registered owner of the Shares set opposite such
     Primary Warrantor's name in Schedule 1 free from any encumbrance, equity or
     third party right (including but not limited to any mortgage, charge,
     pledge, option or lien), from any Contract to grant any of the same and
     from any claim to any of the same.

2.3  The Company has not allotted or issued any share capital other than the
     shares shown in Schedules 1 and 2 as being issued.

2.4  No Contract has been entered into which requires or may require the Company
     to allot or issue any share or loan capital and the Company has not
     allotted or issued any securities which are convertible into share or loan
     capital.

2.5  The Company has no interest, and it has not at any time during the period
     of the Primary Warrantors respective appointments as Directors of the
     Company nor, so far as the Primary Warrantors are aware, from incorporation
     until their respective appointments as Directors had any interest, in the
     share capital of any body corporate.

3.   Capacity

     Each Primary Warrantor has full power to enter into and perform this
     Agreement and this Agreement constitutes obligations binding on him in
     accordance with its terms.
<PAGE>

4.   Insiders' interests

4.1  There is not outstanding and there has not at any time during the period of
     the Primary Warrantors' respective appointments as Directors of the Company
     nor, so far as the Primary Warrantors are aware, for the 5 year period
     prior to their appointment as Directors been outstanding:

     4.1.1   any loan, guarantee or indemnity given by the Company in favour of
             any Insider or in favour of any other person in respect of any
             liability of any Insider;

     4.1.2   any loan, guarantee or indemnity given by any Insider in favour of
             the Company or in favour of any other person in respect of any
             liability of the Company; or

     4.1.3   any other Contract to which the Company is or was a party and in
             which any Insider is or was interested in any way whatsoever
             (excluding any Contract of employment between the Company and any
             of its directors, full details of which are set out in the
             Disclosure Letter).

4.2  No Insider has any interest, direct or indirect, in any trade or business
     which competes or is likely to compete with the Company's business which
     has arisen during the Primary Warrantors' respective appointments as
     Directors of the Company nor, so far as the Primary Warrantors are aware,
     for the 5 year period prior to their appointment as Directors.

5.   Information supplied to the Purchaser

5.1  All written information supplied to the Purchaser or any of its advisers by
     or on behalf of the Warrantors or the Company as listed in the schedule to
     the Disclosure Letter is true, complete and accurate in all material
     respects and is not misleading in any material respect because of any
     omission or ambiguity.

ACCOUNTS AND RECORDS

6.   The Accounts

6.1  The Accounts (a true copy of which is enclosed with the Disclosure Letter):

     6.1.1   comply with the requirements of the Act;

     6.1.2   have been prepared in accordance with the historical cost
             convention, with all applicable Accounting Standards and (to the
             extent that no Accounting
<PAGE>

             Standard is applicable) with accounting principles and practices
             generally accepted in the United Kingdom;

     6.1.3   have been prepared on bases and principles which are consistent
             with those used in the preparation of the audited statutory
             accounts of the Company for the three financial years immediately
             preceding that which ended on the Accounting Date; and

     6.1.4   show a true and fair view of the state of affairs of the Company as
             at the Accounting Date and of the results of the Company for the
             financial year ended on that date.

6.2  Without prejudice to the generality of the provisions of paragraph 6.1, the
     Accounts:

     6.2.1   fully provide for all liabilities (other than contingent or
             potential liabilities which are not expected to crystallise) and
             fully disclose all contingent or potential liabilities which are
             not expected to crystallise and all capital commitments of the
             Company as at the Accounting Date;

     6.2.2   correctly and accurately set forth the capital and reserves and all
             the assets of the Company as at the Accounting Date and the profits
             (or losses) of the Company for the financial year which ended on
             the Accounting Date;

     6.2.3   provide for all bad and doubtful debts as at the Accounting Date
             and are not affected (except as disclosed in the Accounts) by any
             extraordinary or exceptional event, circumstance or item.

6.3  True copies of the Accounts and of the audited accounts for each financial
     year of the Company preceding that which ended on the Accounting Date have
     been laid before the Company in general meeting and delivered to the
     Registrar of Companies in compliance with the Act, and the auditors'
     reports thereon were unqualified.

7.   Profits and losses

     The profits and losses of the Company for the three consecutive financial
     years ended on the Accounting Date as shown by the Accounts (and by the
     audited accounts of the Company for previous periods delivered to the
     Purchaser) and the trend of profits and losses thereby shown have not
     (except as therein disclosed) been affected by inconsistencies of
     accounting treatment, by the inclusion of non-recurring items of income or
     expenditure, by transactions entered into otherwise than on normal
<PAGE>

       commercial terms or by any other factors rendering such profits or losses
       for all or any of such periods exceptionally high or low.

8.     Records

8.1    The accounting records of the Company comply with the provisions of
       sections 221 and 222 of the Act.

8.2    The Company's records, systems and information, and the means of access
       to them, are exclusively owned by it and under its direct control.

ASSETS

9.     Subsidiaries

9.1    The Subsidiaries are dormant and have not traded nor incurred any
       contractual or other liabilities, whether contingent or otherwise, since
       incorporation.

9.2    The Subsidiaries are the only subsidiaries of the Company.

10.    Unencumbered title; possession

10.1   Each asset reflected in the Accounts (save for current assets disposed of
       by the Company in the ordinary course of its business since the
       Accounting Date) and each asset treated as an asset of the Company and/or
       used by the Company at the date of this Agreement:

       10.1.1  is in the legal and beneficial ownership of the Company;

       10.1.2  is free from any encumbrance, equity or third party right
               (including but not limited to any mortgage, charge, pledge,
               option or lien), from any Contract to grant any of the same and
               from any claim to any of the same; and

       10.1.3  is not (in the opinion of the Primary Warrantors) to any extent
               surplus to requirements.

10.2   The Company has not agreed to acquire any material asset on terms that
       the property in it does not pass until full payment is made.

10.3   Properly executed originals of all documents which the Company requires
       to prove title or entitlement to any assets or rights are in the
       possession of the Company.

10.4   Any assets of the Company which are not situated at the Property at
       Completion are specified in the Disclosure Letter.
<PAGE>

10.5   No charge in favour of the Company is void or voidable for want of
       registration.

11.    Debtors

11.1   The Company has not made, or entered into any Contract to make, any loan
       to, or other arrangement with, any person as a result of which it is or
       may be owed any money other than trade debts incurred in the ordinary
       course of business and cash at bank.

11.2   The Company is not entitled to the benefit of any debt otherwise than as
       the original creditor and has not factored or discounted any debt or
       agreed to do so.

12.    (number not used)Stock

       The stock held by the Company does not exceed a value of (Pounds)10,000.

13.    Plant etc

       The plant and machinery, vehicles, fixtures and fittings, furniture,
       tools and other equipment used in connection with the business of the
       Company:

       13.1    are in a good and safe state of repair and condition and
               satisfactory working order and have been maintained to a
               reasonable technical standard and in accordance with safety
               regulations usually observed in relation to them;

       13.1    are capable and will (subject to fair wear and tear) be capable
               over the periods of time during which they will be written down
               to a nil value (at the rates adopted in the Accounts) of meeting
               the needs for which they were designed or purchased; and

       13.2    are accurately recorded in the plant register a copy of which is
               enclosed with the Disclosure Letter.

14     Property

       14.1    The particulars of the Property shown in Schedule 3 are true and
               correct. The use of the Property for the purpose stated in
               Schedule 3 corresponds to the use to which it is in fact put or
               to the use to which it was last in fact put.

       14.2    The Company has a no legal title to the Property or any legal
               estate or interest in it other than a licence to occupy pursuant
               to the Licence in Schedule 3, free from any defects. There is not
               far as the Primary Warrantors are aware, in force any policy
               relating to defective title or restrictive covenant indemnity.
<PAGE>

       14.3    The Company is not in occupation of or entitled to any estate or
               interest in any land or premises save the Property.

       14.4    So far as the Primary Warrantors are aware and to the best of
               their knowledge, information and belief the Property is not
               affected by any of the following matters:

               14.4.1  any matter which is of an unusually onerous or unusual
                       nature, or which conflicts with the present use of the
                       Property, or which would otherwise restrict its continued
                       occupation and enjoyment under the terms of the Licence;

               14.4.2  any outstanding breach or alleged breach of covenant by
                       the Company or any dispute or complaint involving the
                       Company prior to the date of this Agreement, whether
                       actual or threatened, with any neighbour, tenant,
                       landlord or other person relating to the Property;

               14.4.3  any outstanding notice, order, demand, resolution,
                       proposal, complaint or requirement issued or made
                       affecting the Company's occupation of the Property, or to
                       the knowledge of the Primary Warrantors intended to be
                       issued or made, by any local or other competent authority
                       or body;

               14.4.4  to the best of the knowledge, information and belief of
                       the Primary Warrantors any outstanding requirement of any
                       public or other body relating to it or its use for the
                       purpose stated in Schedule 3; or

               14.4.5  to the best of the knowledge information and belief of
                       the Primary Warrantors any unusual or unusually onerous
                       outgoings whether of a periodically recurring nature or
                       otherwise, and payable by the Company.

       14.5    To the best of the knowledge information and belief of the
               Primary Warrantors no planning permission or consent relating to
               the Property has been given on a temporary basis or subject to
               any unusual or unusually onerous conditions.

       14.6    To the best of the knowledge information and belief of the
               Primary Warrantors the use of the Property (and the use of plant
               and machinery in connection with it) are the permitted user under
               and comply with the provisions of all relevant legislation and
               all restrictions, conditions and requirements imposed by or
               pursuant to such legislation have been observed and performed.
<PAGE>

     14.7 To the best of the knowledge, information and belief of the Primary
          Warrantors there are appurtenant to the Property all rights and
          easements necessary for its present use and enjoyment by the Company
          in accordance with the terms of the Licence.

     14.8 The Property is in a good and substantial state of repair and
          condition and fit for the purposes for which it is presently used.
          There are no uncompleted works of any description at the Property.

     14.9 There is no actual or contingent liability on the part of the Company
          in relation to the Property save as set out in the Licence.

15   Intellectual Property

     15.1 The Company has no interest in any Intellectual Property Rights save
          for the Intellectual Property Rights details of which are given in or
          attached to the Disclosure Letter, all of which are (where applicable)
          registered in the name of the Company and/or are otherwise
          beneficially owned by it and/or are in the public domain and/or are
          licensed to the Company.

     15.2 To the best of the knowledge, information and belief of the Primary
          Warrantors (who have not made due enquiries) the processes employed
          and the products and services dealt in by the Company do not use,
          embody or infringe any Intellectual Property Rights vested in any
          other party or in which any other party has any interest (whether
          under licence or otherwise) and do not give rise (contingently or
          otherwise) to payment by the Company of any royalty or of any sum in
          the nature of a royalty or to liability to pay compensation under
          sections 40 and 41 Patents Act 1977 or otherwise.

     15.3 The Company has not received any notice, and the Primary Warrantors
          are not aware, that any person is infringing any of the Company's
          Intellectual Property Rights.

     15.4 The Company is not passing off any part of its business as and for the
          business of any other person and, so far as the Primary Warrantors are
          aware, no person is passing off its business as and for any part of
          the Company's business.

16   Millennium and Euro Compliance

     16.1 For the purposes of this Agreement "Millennium Compliant" means that
          the Computer Systems are capable of the following functions before,
          during and/or after 1 January 2000:
<PAGE>

          16.1.1  responding to and processing two digit year input without
                  creating any ambiguity as to the century; and

          16.1.2  storing and providing date output information without creating
                  any ambiguity as to the century.

     16.2 To the best of the knowledge, information and belief of the Primary
          Warrantors (who have not made due enquiries) the Computer Systems are
          Millennium Compliant.

     16.3 To the best of the knowledge information and belief of the Primary
          Warrantors (who have not made due enquiries) the Computer Systems will
          not require any remedial work and/or replacement to enable them (or
          any part of them) to continue functioning accurately before, during
          and/or after 1 January 2000 in the manner referred to in paragraph
          16.1.

     16.4 The Computer Systems and each element of them passes and to the best
          of the knowledge information and belief of the Primary Warrantors (who
          have not made due enquiries) will continue to pass date information
          between each other (and any third parties' computer systems with which
          they habitually communicate) in a way which does not, and will not,
          create inaccuracies, errors or problems before, during and/or after 1
          January 2000.

     16.5 The Computer Systems and the EMU Systems:

          16.5.1  will not require replacement or any changes to enable them to
                  handle conversion or redenomination of currency resulting from
                  Economic and Monetary Union;

          16.5.2  have been modified to ensure all financial and monetary
                  information and all calculations resulting therefrom can be
                  converted and rounded from sterling to Euro and Euro to
                  Sterling in accordance with the rules for conversion and
                  rounding contained in EU Council Regulation 1103/97; and

          16.5.3  are capable of operating in dual currency (and for these
                  purposes 'dual currency' means Sterling and Euro).
<PAGE>

EMPLOYEES

17   Remuneration and employees

     17.1 Particulars of the identities, dates of commencement of employment (or
          appointment to office) and terms and conditions of employment
          (including remuneration and any bonus, commission or profit sharing
          arrangement) of all the employees and officers of the Company are
          fully and accurately set out in the Disclosure Letter, and copies of
          all their written service agreements and/or their contracts of
          employment or particulars of employment statements are enclosed with
          the Disclosure Letter.

     17.2 No change has been made since the Accounting Date in the terms of
          employment of any person employed by the Company at the date of this
          Agreement, and the Company is not party to any Contract to make any
          such change.

     17.3 There are no amounts owing to any present or former officers or
          employees of the Company, other than remuneration accrued (but not yet
          due for payment) in respect of the calendar month in which this
          Agreement is executed or for reimbursement of business expenses
          incurred during such month, and none of them is entitled to accrued
          holiday pay other than in respect of the Company's current holiday
          year.

     17.4 All Contracts of employment between the Company and its directors and
          employees are terminable by the Company without compensation (except
          under the ERA) by giving the applicable minimum period of notice
          specified in section 86 ERA.

     17.5 No employee has been engaged by the Company since the Accounting Date
          and no person employed by the Company at or since the Accounting Date
          has ceased, or given or received notice to cease, to be so employed.

     17.6 There is no person previously employed by the Company who now has or
          may have a right to return to work or a right to be re-instated or re-
          engaged by the Company under the provisions of the ERA.

     17.7 The Company has not recognised, or done any act which might be
          construed as recognition of, a trade union and the Company is not a
          party to any collective agreement with any trade union or organisation
          of workers.
<PAGE>

     17.8  The Company is not involved, and has not during the 12 months prior
           to the date of this Agreement been involved, in any strike, lock-out,
           industrial or trade dispute or any negotiations with any trade union
           or body of employees.

     17.9  The Company neither has introduced nor intends to introduce any share
           incentive scheme or arrangement, share option scheme or arrangement
           or any other scheme or arrangement relating to the acquisition of any
           interest in any shares in the Company for all or any of its directors
           or employees.

     17.10 There are no job share arrangements, flexitime arrangements or early
           retirement schemes applicable to any employees of the Company. There
           are no schemes or programmes for the employment or training of people
           by the Company other than under the Company's full control.

     17.11 The Company neither has introduced nor intends to introduce any short
           time working scheme or any redundancy scheme under which payments
           greater than those required by statute are payable.

     17.12 None of the products or services supplied by the Company are produced
           or provided by outworkers, agency or other self-employed persons,
           contracted labour or agents.

     17.13 The Company has in relation to all present and former employees
           complied with all statutes, regulations, orders and codes of conduct
           relating to employment and relations with employees and trade unions
           and has maintained adequate and suitable records regarding the
           service of each of its employees and complied with all agreements for
           the time being having effect as regards such relations or the
           conditions of service of its employees (whether collectively or
           individually).

CONTRACTS

18   Insurance

     18.1  A true copy of the Company's insurance policies are annexed to the
           Disclosure Letter.

     18.2  The Company is, and has at all material times been, adequately
           covered against employer's liability, public liability, product
           liability and professional indemnity liability.
<PAGE>

     18.3 All premiums due in relation to the Company's insurances have been
          paid and nothing has been done or omitted to be done which would make
          any policy of insurance of the Company void or voidable or which is
          likely to result in an increase in premium or which would release any
          insurer from any of its obligations under any policy of insurance of
          the Company.

     18.4 There is no insurance claim pending or outstanding and, as far as the
          Primary Warrantors are aware, there are no circumstances likely to
          give rise to any such claim.

     18.5 No claims have been made by employees in respect of industrial injury
          in the 2 years prior to the date of this Agreement.

19   Financing and working capital

     19.1 The amount borrowed by the Company from each of its bankers does not
          exceed the facility agreed with each such banker and the total amount
          borrowed by the Company from any source whatsoever does not exceed any
          limitation on its borrowing contained in its articles of association
          or in any debenture or loan stock trust deed or any other document.

     19.2 The Company has not engaged in any borrowing or financing not required
          to be reflected in its statutory accounts.

     19.3 Full and accurate details of all overdrafts, loans or other financial
          facilities outstanding or available to the Company are contained in
          the Disclosure Letter; true and correct copies of all documents
          relating to such facilities are enclosed with the Disclosure Letter;
          nothing has been done or omitted to be done whereby the continuance of
          any such facility in full force and effect might be affected or
          prejudiced; and no person who provides any such facility has given any
          indication that it may be withdrawn or its terms altered.

     19.4 The details contained in the Disclosure Letter of the credit or debit
          balances on all the bank or deposit accounts of the Company were
          correct at the date stated in the Disclosure Letter and since such
          date there have been no payments out of any such accounts except for
          routine payments and the balances on such accounts are not now
          substantially different from the balances shown in the Disclosure
          Letter.

     19.5 No person other than the Company has given any guarantee of or
          security for any overdraft, loan or other financial facility granted
          to the Company.
<PAGE>

     19.6 No indebtedness of the Company is due and payable and no security over
          any of the assets of the Company is now enforceable, whether by virtue
          of the stated maturity date of the indebtedness having been reached or
          otherwise, and the Company has not received any formal or informal
          notice (whose terms have not been fully complied with and/or carried
          out) from any creditor of the Company, requiring any payment to be
          made and/or intimating the enforcement of any security which it may
          hold over any assets of the Company.

     19.7 The Company has not applied for or received any grant, subsidy,
          payment or allowance from any government, authority, body or agency
          (whether supra-national, national, regional or local) which may at any
          time be or become repaid or repayable.

     19.8 Having regard to existing bank and other facilities the Company has
          sufficient working capital for the purpose of enabling it to carry on
          its business in its present form and at its present level of turnover
          for the foreseeable future and to perform in accordance with their
          terms all Contracts which have been entered into by it.

20   Material Contracts

     The Company is not, and has not since the Accounting Date been, a party to
     or subject to (and the Company has not agreed in principle, or made any
     offer or entered any negotiation, to enter into) any Contract which:

     20.1 involves agency, distributorship, franchising, Intellectual Property
          Rights licensing, marketing rights, information sharing, manufacturing
          rights, consultancy, servicing, maintenance, inspection or testing;

     20.2 involves partnership, joint venture, consortium, joint development,
          shareholders or similar arrangements;

     20.3 involves hire purchase, conditional sale, credit sale, leasing, hiring
          or similar arrangements;

     20.4 commits the Company to capital expenditure;

     20.5 is of a long-term nature, being incapable of complete performance in
          accordance with its terms within six months after the date on which it
          was entered into;
<PAGE>

     20.6  cannot readily be fulfilled or performed by the Company on time and
           without undue or unusual expenditure of money or effort;

     20.7  the Primary Warrantors believe may result in a loss to the Company;

     20.8  involves or is likely to involve the receipt or payment of a price
           above or below the market price ruling at the date of this Agreement
           or any other obligation, restriction, expenditure or receipt of an
           unusual, onerous or exceptional nature, or which is of uncertain
           magnitude;

     20.9  involves or is likely to involve an aggregate consideration payable
           by or to the Company in excess of (Pounds)3,000;

     20.10 requires the Company to pay any commission, finder's fee, royalty or
           the like;

     20.11 is for the supply of goods by or to the Company on a sale or return
           basis or on a consignment stock basis;

     20.12 is for the supply of goods and/or services by or to the Company on
           terms under which retrospective or future discounts, price reductions
           or other financial incentives are given by or to the Company
           dependent on the level of purchases or any other factor;

     20.13 is for the supply of goods and/or services by the Company which is
           not on the current standard terms and conditions of supply, copies of
           which are attached to the Disclosure Letter;

     20.14 is for the supply of goods and/or services to the Company which is
           not on the current standard terms and conditions on which the Company
           buys or contracts for goods and/or services from its suppliers,
           copies of which are attached to the Disclosure Letter;

     20.15 involves the forward purchase or sale of any currency, commodity,
           precious metal or other asset;

     20.16 involves delegation of any power under a power of attorney or
           authorisation of any person (as agent or otherwise) to bind or commit
           the Company to any obligation;

     20.17 restricts the freedom of the Company to provide or take goods or
           services by such means and to and from such persons as it may from
           time to time think fit;
<PAGE>

     20.18 involves otherwise than in the ordinary course of business
           conditions, warranties, indemnities or representations given in
           connection with a sale of shares or assets, or is a guarantee or
           indemnity in respect of the obligations of a third party, under which
           any liability or contingent liability is outstanding;

     20.19 involves the Company in any actual or contingent liability in respect
           of any land or premises previously occupied by it or in which it had
           any interest, including but not limited to any liability in respect
           of any leasehold property at any time assigned or otherwise disposed
           of by it;

     20.20 includes a term which is not, or may not be, binding on the Company
           to the best of the knowledge information and belief of the Warrantors
           or any other party in consequence of the Unfair Terms in Consumer
           Contracts Regulations 1994;

     20.21 is an outstanding offer, tender or the like which if accepted may
           result in a loss to the Company; or

     20.22 is not on arm's length terms or is in any way otherwise than in the
           ordinary and proper course of the Company's business.

21   Other business matters

     21.1  During the 12 months ended on the date of this Agreement there has
           been no substantial change in the basis or terms on which any person
           is prepared to do business with the Company (apart from normal price
           changes), and no customer which on its own accounts for more than 15%
           of the Company's annual turnover (as shown in the last audited
           accounts) or supplier of the Company has ceased or substantially
           reduced its business with the Company, and no indication has been
           received by the Company or any of the Vendors that there will or may
           be any such change, cessation or reduction.

     21.2  The Company does not carry on business under or use on its
           letterhead, sales material, invoices or vehicles or otherwise any
           name other than its own corporate name or any name specified in the
           Disclosure Letter as being a name under which it does business and
           there are no circumstances which might prevent the Company from
           continuing to carry on business under any such name.

     21.3  No code of practice has been issued by any government department,
           association or similar body which relates to the Company's business.
<PAGE>

     21.4 (Apart from statutory instruments) no order or notice has been made,
          given or published in Europe or the United States of America affecting
          the prices which may be charged for any goods or services supplied by
          the Company and no notification has been received or published of any
          intention to make such an order or to give such a notice.

COMPLIANCE; DISPUTES

22   Company law matters

     22.1 Compliance has been made with all legal requirements in connection
          with the formation of the Company and all issues and grants of shares,
          debentures, notes, mortgages or other securities of the Company.

     22.2 The copy of the memorandum and articles of association of the Company
          enclosed with the Disclosure Letter is true and complete and has
          attached to it copies of all such resolutions and agreements as have
          been or ought to have been filed with the Registrar of Companies.
          Neither the Company nor any class of its members has passed any other
          resolution (except for resolutions relating to business at annual
          general meetings which was not special business).

     22.3 All returns, particulars, resolutions and other documents required to
          be filed with or delivered to the Registrar of Companies by the
          Company or any of its officers have been correctly and properly
          prepared and so filed and delivered, and no such returns, particulars,
          resolutions or other documents have been so filed or delivered during
          the period of 14 days ending with the date of this Agreement.

     22.4 The statutory books (including all registers and minute books) of the
          Company have been properly kept and contain an accurate and complete
          record of the matters which should be dealt with in those books and no
          notice or allegation that any of them is incorrect or should be
          rectified has been received.

     22.5 None of the activities of the Company is ultra vires the Company.

23   General legal compliance

     23.1 All necessary licences, consents, permits and authorities (public and
          private) have been obtained by the Company to enable the Company to
          carry on its business effectively in the places and in the manner in
          which such business is now carried on.  All such licences, consents,
          permits and authorities are valid
<PAGE>

          and subsisting and have been complied with in all respects and there
          is no reason why any of them should be suspended, cancelled or
          revoked.

     23.2 All vehicles owned, leased or hired by the Company have current road
          fund licences and Department of Transport test certificates (where
          necessary) and, where appropriate, the Company holds current
          operators' licences in respect of them.

     23.3 The Company has conducted its business in accordance with all
          applicable laws and regulations of the United Kingdom (including (so
          far as applicable) but not limited to the Consumer Credit Act 1974 and
          the Data Protection Act 1998) and of any relevant foreign country. To
          the best of the knowledge information and belief of the Primary
          Warrantors there is no order, decree or judgement of any court or
          governmental agency of the United Kingdom or any foreign country
          outstanding against the Company or which may have an adverse effect
          upon the assets or business of the Company.

     23.4 None of the Company's officers, agents or employees (during the course
          of his duties in relation to the Company) has to the best of the
          knowledge information and belief of the Primary Warrantors committed
          or omitted to do any act or thing in contravention of any law, order,
          regulation or the like in the United Kingdom or elsewhere for which
          the Company may have a vicarious liability.

     23.5 The Company has not been notified of any investigation or enquiry by,
          or on behalf of, any governmental or other body in respect of the
          affairs of the Company and to the best of the knowledge information
          and belief of the Primary Warrantors none is pending.

24   Environmental/Health and Safety (EHS) matters

     24.1 EHS Permits

          24.1.1  The Company has lawfully obtained all necessary EHS Permits.
                  Each EHS Permit is in full force and effect and the Company
                  complies and has complied at all times with and can continue
                  to comply in the future with all conditions of each EHS
                  Permit.

          24.1.2  True copies of EHS Permits obtained by the Company (including
                  any variation notices applicable thereto) are attached to the
                  Disclosure Letter.
<PAGE>

          24.1.3  No works or abnormal costs are or will be necessary to obtain
                  or secure compliance with or maintain any EHS Permit or
                  otherwise to comply with EHS Law.

          24.1.4  The Company has not received any communication in any form in
                  respect of any EHS Permit varying, modifying, revoking,
                  suspending or cancelling the same or indicating an intention
                  or threatening so to do and to the best of the knowledge
                  information and belief of the Primary Warrantors there are no
                  facts or circumstances which may result in any EHS Permit
                  being varied, modified, revoked or suspended or which may
                  prejudice its renewal.

     24.2 Compliance with EHS Law

          24.2.1  The Company and its officers, agents and employees comply and
                  have at all times complied with EHS Law.

          24.2.2  The Company has not received any written communication to the
                  best of the knowledge information and belief of the Primary
                  Warrantors in any other form from any relevant authority from
                  which it appears that it may be or is alleged to be in breach
                  of any EHS Law, or failure to comply with which could
                  constitute a breach of any EHS Law, or compliance with which
                  could be secured by further proceedings to the best of the
                  knowledge information and belief of the Primary Warrantors.
                  There are no circumstances which might give rise to such a
                  communication being received and the Primary Warrantors are
                  not aware of any intention on the part of any such authority
                  to give such communication.

     24.3 Liability

          24.3.1  to the best of the knowledge information and belief of the
                  Primary Warrantors there are no facts or circumstances which
                  may give rise to any actual or potential liability (whether
                  civil or criminal) on the part of the Company in relation to
                  EHS Matters.

          24.3.2  The Company has not received any written notice or to the best
                  of the knowledge information and belief of the Primary
                  Warrantors, intimation of any complaint or claim from any
                  person in respect of any EHS Matter.
<PAGE>

          24.3.3  The Company is not and has not been engaged in any action,
                  litigation, arbitration or dispute resolution proceedings or
                  to the best of the knowledge information and belief of the
                  Primary Warrantors, subject to any investigation under EHS Law
                  or otherwise in relation to EHS Matters and the Primary
                  Warrantors are not aware of any such matters pending or being
                  threatened or of any circumstances or facts likely to give
                  rise to any such matters.

     24.4 Contamination

          24.4.1  All sites now or formerly owned or occupied by the Company are
                  to the best of the knowledge information and belief of the
                  Primary Warrantors, free from any Hazardous Substances which
                  could give rise (whether on the relevant site or elsewhere) to
                  any actual or potential liability on the part of the Company
                  under EHS Law.

          24.4.2  To the best of the knowledge information and belief of the
                  Primary Warrantors, there are no circumstances which may
                  require expenditure (whether by the Company or by any other
                  person or authority) in cleaning up or decontaminating or
                  otherwise on the Property or on any sites now or formerly
                  owned or occupied by the Company in order to comply with EHS
                  Law or otherwise for the protection of the Environment.

     24.5 Packaging

     So far as is reasonably necessary the Company complies and has at all times
     complied with the Producer Responsibility Obligations (Packaging Waste)
     Regulations 1997.

     24.6 Information

          24.6.1  The Company has at all times supplied to the competent
                  authorities all information required by EHS Law to be
                  supplied; all such information given (whether under a legal
                  obligation or otherwise) was correct at the time the
                  information was supplied and all information contained on
                  public registers relating to such matters is to the best of
                  the knowledge information and belief of the Primary Warrantors
                  correct.

          24.6.2  Full details of any remedial work carried out at any sites now
                  or formerly owned or occupied by the Company and of any
                  environmental assessment, audit, review or investigation
                  conducted by or on behalf of
<PAGE>

                  the Company or otherwise in relation to any such sites are
                  contained in or annexed to the Disclosure Letter.

25   Fair trading

     25.1 No agreement, transaction, practice or arrangement carried on or
          proposed to be carried on by the Company (or by any person for whose
          acts or defaults the Company may be liable), whether unilaterally or
          with others, or to which the Company (or any such person) is or
          proposes to become a party, and no state of affairs applicable to the
          Company (or any such person):

          25.1.1  is or ought to be or ought to have been registered in
                  accordance with the provisions of the Restrictive Trade
                  Practices Acts 1976 and 1977 or contravenes the provisions of
                  the Resale Prices Act 1976 to the best of the knowledge
                  information and belief of the Primary Warrantors or is or has
                  been the subject of any enquiry, investigation or proceeding
                  under any such legislation;

          25.1.2  is or has been the subject of an enquiry, investigation,
                  reference or report under the Fair Trading Act 1973 (or any
                  other legislation relating to monopolies or mergers) or the
                  Competition Act 1980;

          25.1.3  infringes or falls within the scope of Article 81of the Treaty
                  establishing the European Union, or constitutes an abuse of
                  dominant position contrary to Article 82 of the said Treaty,
                  or infringes or falls within the scope of any regulation or
                  other enactment made under Article 83 of the said Treaty, or
                  is or has been the subject of any enquiry, investigation or
                  proceeding in respect of any thereof;

          25.1.4  contravenes the provisions of the Trade Descriptions Act 1968,

     and to the best of the knowledge information and belief of the Primary
     Warrantors there are no circumstances indicating that any such enquiry,
     investigation, proceeding, reference or report relating to any such matter
     is likely to be made.

     25.2 The Company has not made or threatened to make any complaint against
          any other person to any relevant authority under any law or
          legislation referred to in this paragraph 25.

     25.3 The Company has not given any assurance or undertaking to the
          Restrictive Practices Court, the Director General of Fair Trading, the
          Secretary of State for Trade and Industry, the Commission or Court of
          First Instance or Court of
<PAGE>

          Justice of the European Union, or any other court, or competent
          authority, and is not subject to any act, decision, regulation, order
          or other instrument (statutory or otherwise) made by any of them
          relating to any matter referred to in this paragraph 25.

     25.4 The Company is not in default or in contravention of any article, act,
          decision, regulation, order or other instrument or of any assurance or
          undertaking relating to any matter referred to in this paragraph 25.

26   Litigation

     26.1 Neither the Company nor to the best of the knowledge information and
          belief of the Primary Warrantors any person for whose acts or defaults
          the Company may be contractually or vicariously liable is involved
          (whether as claimant, defendant or any other party) in any civil,
          criminal, tribunal or arbitration proceedings, so far as the Primary
          Warrantors are aware no such proceedings are pending or threatened by
          or against the Company, and to the best of the knowledge information
          and belief of the Primary Warrantors there are no facts likely to give
          rise to any such proceedings.

     26.2 There is no unsatisfied judgement or unfulfilled order outstanding
          against the Company and the Company is not party to any undertaking or
          assurance given to a court, tribunal or any other competent authority
          in connection with the determination or settlement of any claim or
          proceedings.

27   Default

     27.1 The Company has not sold, supplied or provided any product or service
          which did not, does not or will not comply fully with all applicable
          laws, regulations, standards (including British and/or European
          Community standards) and customers' specifications or which was, is or
          to the best of the knowledge information and belief of the Primary
          Warrantors, will be faulty, defective or dangerous or not in
          accordance with any representation, condition, warranty or contractual
          term, express or implied, given in respect of or relating to it.

     27.2 The Company is not in breach of any Contract to which it is a party,
          and to the best of the knowledge information and belief of the Primary
          Warrantors no other party to any such Contract is in breach of it. All
          agreements, rights, commitments, obligations, arrangements and
          understandings to which the Company is a party are valid and
          enforceable. The Primary Warrantors are not
<PAGE>

          aware of any grounds for the termination, rescission, avoidance or
          repudiation of any Contract by the Company or any other party to any
          such Contract.

28   Insolvency

     28.1 To the best of the knowledge information and belief of the Primary
          Warrantors, no petition has been presented, no order has been made and
          no resolution has been passed for the winding-up of the Company, no
          administrative receiver, receiver and/or manager has been appointed of
          the whole or any part of the property of the Company, no
          administration order has been made appointing an administrator in
          respect of the Company and no petition has been presented for an
          administration order in respect of the Company.

     28.2 No voluntary arrangement has been approved under Part I Insolvency Act
          1986 and no compromise or arrangement has been sanctioned under
          section 425 of the Act in respect of the Company.

     28.3 No distress, execution or other process which remains undischarged has
          been levied on the assets of the Company, the Company has not stopped
          the payment of its debts or received a written demand pursuant to
          section 123(1) (a) Insolvency Act 1986 and it is not unable to pay its
          debts within the meaning of section 123 Insolvency Act 1986 nor could
          it be deemed to be unable to pay its debts within the meaning of
          section 123 Insolvency Act 1986.

     28.4 No disqualification order has at any time been made pursuant to the
          provisions of the Company Directors Disqualification Act 1986 against
          any current officer or any former officer or employee of the Company.

     28.5 There are no facts known to the Primary Warrantors which could give
          rise to any of the events or circumstances referred to in this
          paragraph 28.

29   Events since the Accounting Date

     Since the Accounting Date:

     29.1 there has been no reduction in the value of the net assets of the
          Company determined in accordance with the same accounting policies as
          those applied in the Accounts (and on the basis that each of the
          assets of the Company is valued at a figure no greater than the value
          attributed to it in the Accounts or, in the case of any of the said
          assets acquired by the Company after the Accounting Date, at a figure
          no greater than cost);
<PAGE>

     29.2   the Company has not acquired, or agreed to acquire, any tangible
            asset, interest in any single Intellectual Property Right or
            investment having a value in excess of (Pounds)3,000 or tangible
            assets, interests in Intellectual Property Rights or investments
            having an aggregate value in excess of (Pounds)3,000;

     29.3   the Company has not disposed of, or agreed to dispose of, any
            tangible asset, interest in any single Intellectual Property Right
            or investment either having a value reflected in the Accounts in
            excess of (Pounds)3,000 or acquired since the Accounting Date;

     29.4   no loan made by the Company which remains outstanding has become due
            and payable in whole or in part to the Company;

     29.5   the Company has not borrowed or raised any money or taken up any
            financial facilities;

     29.6   no dividend or other payment which is, or could be treated as, a
            distribution for the purposes of Part VI ICTA or section 418 ICTA
            has been declared, paid or made by the Company;

     29.7   the trade and business of the Company has been carried on in the
            ordinary and normal course;

     29.8   there has been no adverse change in the financial or trading
            position or prospects of the Company including, but not limited to,
            any adverse change in respect of turnover, profits, margins of
            profitability, liabilities (actual or contingent) or expenses
            (direct or indirect) of the Company;

     29.9   the Company's accounting reference date has not been changed;

     29.10  the Company has not paid any costs, fees, commission or other
            charges of any professional adviser, agent or other person (not
            being an employee) who has not provided services to the Company, the
            Company has not received any bill in respect of any of the same
            which remains unpaid and no work has been carried out by any such
            person for the Company (whether or not in connection with this
            Agreement or the transaction effected by it) in respect of which the
            Company has not received a bill;

     29.11  no management or similar charge has become payable or been paid by
            the Company; and
<PAGE>

     29.12  no payment has been made by the Company to, or benefit conferred
            (directly or indirectly) by the Company on, any of the Vendors or
            any Insider, save as specified in the Disclosure Letter.

30   Effects of the Agreement

     30.1   To the best of the knowledge information and belief of the Primary
            Warrantors (without their having made due enquiry), the acquisition
            of the Shares by the Purchaser will not, and will not be likely to,
            affect the relationship between the Company and any of its
            customers, suppliers or employees.

     30.2   The execution of this Agreement and the observance and performance
            of its provisions will not to the best of the knowledge information
            and belief of the Primary Warrantors (without having made due
            enquiry) and will not be likely to:

            30.2.1  result in a breach of any Contract, law, regulation, order,
                    judgement, injunction, undertaking, decree or other like
                    imposition to or by which the Company is party or is bound,
                    or entitle any person to terminate or avoid any Contract to
                    which the Company is party, or have any material effect on
                    any such Contract;

            30.2.2  result in the loss or impairment of or any default under
                    any licence, authorisation or consent required by the
                    Company for the purposes of its business;

            30.2.3  result in the creation, imposition, crystallisation or
                    enforcement of any encumbrance whatsoever on any of the
                    assets of the Company; or

            30.2.4  result in any present or future indebtedness of the Company
                    becoming due and payable, or capable of being declared due
                    and payable, prior to its stated maturity date or in any
                    financial facility of the Company being withdrawn.

     30.3   There is no Contract to which the Company is party which depends on
            the continuation of the connection (whether as an officer of the
            Company or otherwise) of any person with the Company.

                                    PART 2

Non Taxation Warranties given by the Secondary Warrantor
<PAGE>

The Secondary Warrantor warrants the following warranties contained in Part 1 of
Schedule 4 but substituting in such paragraphs a reference to "Secondary
Warrantor" in place of the reference to "Primary Warrantors" - paragraphs  2.1,
2.3-2.5 (inclusive), 4,5, 6.1-6.3 (inclusive), 8.2, 9, 10.1-10.3 (inclusive) and
28.1-28.4 (inclusive), 13, 14, 15, 16, 20,21, 22, 24, 25, 26, 27.

                                    PART 3

Non Taxation Warranties given by the Tertiary Warrantors

1.   The Tertiary Warrantors have full power to enter into and perform this
     Agreement and this Agreement constitutes obligations binding on them in
     accordance with its terms.

2.   The Shares held by the Tertiary Warrantors who are Vendors are fully paid
     and the Tertiary Warrantors who are Vendors are able to sell such Shares on
     the basis set out in clause 2.1 of this Agreement.
<PAGE>

                                  SCHEDULE 5

                              Taxation Warranties

PART 1 -

31.INTERPRETATION

31.1 Interpretation

     In this Schedule 5 the following expressions have the following meanings
     unless inconsistent with the context:

     "ACT"                               advance corporation tax

     "the Balance Sheet"                 the audited balance sheet of the
                                         Company as at the Accounting Date

     "CAA"                               Capital Allowances Act 1990

     "FA"                                Finance Act

     "Group Relief"                      the meaning given to that expression by
                                         section 402 ICTA

     "ICTA"                              Income and Corporation Taxes Act 1988

     "IHTA"                              Inheritance Tax Act 1984
<PAGE>

"Taxation"                               (a) any tax, duty, impost or levy, past
                                             or present, of the United Kingdom
                                             or elsewhere, whether governmental,
                                             state, provincial, local
                                             governmental or municipal,
                                             including but not limited to income
                                             tax (including income tax required
                                             to be deducted or withheld from or
                                             accounted for in respect of any
                                             payment under section 203 ICTA or
                                             otherwise), corporation tax, ACT,
                                             capital gains tax, inheritance tax,
                                             VAT, customs and other import or
                                             export duties, rates, stamp duty,
                                             stamp duty reserve tax, national
                                             insurance and social security
                                             contributions; and

                                         (b) any fine, penalty, surcharge,
                                             interest or other imposition
                                             relating to any tax, duty, impost
                                             or levy mentioned in paragraph (a)
                                             of this definition or to any
                                             account, record, form, return or
                                             computation required to be kept,
                                             preserved, maintained or submitted
                                             to any person for the purposes of
                                             any such tax, duty, impost or levy

"Taxation Authority"                     any authority, whether of the United
                                         Kingdom or elsewhere, competent to
                                         impose, assess or collect Taxation,
                                         including but not limited to the Board
                                         of Inland Revenue, the Commissioners of
                                         Customs and Excise and the Department
                                         of Social Security

"Taxation Statute"                       any statute (and all regulations and
                                         other documents having the force of law
                                         under such statute) published, enacted,
                                         issued or coming into force on or
                                         before the date of this Agreement
                                         relating to Taxation

"TCGA"                                   Taxation of Chargeable Gains Act 1992

"TMA"                                    Taxes Management Act 1970

"VAT"                                    value added tax
<PAGE>

     "VATA"                            Value Added Tax Act 1994

     "VAT Group"                       any group of companies for the purposes
                                       of section 43 VATA of which the Company
                                       is or has been a member on or before
                                       Completion;

     31.2 references to any statute or statutory provisions will, unless the
          context otherwise requires, be construed as including references to
          any earlier statute or the corresponding provisions of any earlier
          statute, whether repealed or not, directly or indirectly amended,
          consolidated, extended or replaced by such statute or provisions, and
          to any subsequent statute or the corresponding provisions of any
          subsequent statute directly or indirectly amending, consolidating,
          extending, replacing or re-enacting the same, and will include any
          orders, regulations, instruments or other subordinate legislation made
          under the relevant statute or statutory provisions.

PART 2 - TAX WARRANTIES

32   Returns, disputes and clearances

     32.1 All notices, returns, computations, registrations and payments which
          should have been made by the Company for any Taxation purpose have
          been made within the requisite periods and are up-to-date, correct and
          on a proper basis and none of them is, or is likely to be, the subject
          of any dispute with any Taxation Authority.

     32.2 The Company is not involved in any dispute with any Taxation Authority
          concerning any matter likely to affect in any way the liability of the
          Company to Taxation and there are no circumstances which are likely to
          give rise to any such dispute to the best of the Vendors' knowledge
          and belief.

     32.3 The Taxation affairs of the Company have never been the subject of any
          investigation or enquiry by any Taxation Authority (other than routine
          questions), no Taxation Authority has indicated that it intends to
          investigate the Taxation affairs of the Company and there are no
          circumstances which are likely to give rise to any such investigation.


<PAGE>

     32.4 The Company has punctually supplied all information requested by any
          Taxation Authority for any Taxation purpose.

     32.5 All particulars furnished to the Inland Revenue or any other Taxation
          Authority in connection with the application for any formal written
          consent or statutory clearance made on behalf of or affecting the
          Company 7 years prior to Completion fully and accurately disclosed all
          facts , circumstances and law material to the decision of the Inland
          Revenue or such other Taxation Authority and any such consent or
          clearance given remains valid and effective and any transaction for
          which such consent or clearance has previously been obtained has been
          carried into effect (if at all) only in accordance with the terms of
          the relevant application, consent or clearance.

     32.6 The Disclosure Letter contains details so far as they affect the
          Company of all written concessions, arrangements and agreements
          (whether formal or informal) negotiated with any Taxation Authority
          and no action has been taken by or on behalf of the Company which has
          had or is likely to have the result of altering, prejudicing or in any
          way disturbing any such concession, arrangement or agreement.

33   Penalties and interest

     33.1 The Company has not since the Accounting Date paid, and is not liable
          to pay, any fine, penalty, charge, surcharge or interest charged by
          virtue of any of the provisions of TMA or any other Taxation Statute
          and has not since the Accounting Date become subject to any forfeiture
          by virtue of any such provisions or the operation of any penal
          provisions contained in any Taxation Statute.

     33.2 So far as the Vendors are aware, there are no circumstances which are
          likely to cause the Company to become liable to pay any fine, penalty,
          charge, surcharge or interest, or become subject to any forfeiture, as
          mentioned in paragraph 33.1.

34   Taxation claims, liabilities and reliefs

     34.1 The Company has sufficient records to calculate the liability to
          Taxation or relief arising on the disposal of any asset owned at the
          Accounting Date or acquired since the Accounting Date up to Completion
          and having an original acquisition cost in excess of (Pounds)1,000.
<PAGE>

     34.2 The Company has duly and properly made all Taxation claims,
          disclaimers, elections and surrenders and given all notices and
          consents and done all other things in respect of Taxation the making,
          giving or doing of which was assumed to have been made for the
          purposes of the Balance Sheet, all such claims, disclaimers,
          elections, surrenders, notices, consents and other things have been
          accepted as valid by the relevant Taxation Authorities and none has
          been revoked or otherwise withdrawn.

     34.3 The Company has neither made nor is entitled to make any claim under
          section 23, 24, 48, 242, 279 or 280 TCGA or section 584 ICTA.

     34.4 The Company is not, and will not become, liable to pay, or make
          reimbursement or indemnity in respect of, any Taxation (or amounts
          corresponding to any Taxation) payable by or chargeable on or
          attributable to any other person, whether in consequence of the
          failure by that person to discharge that Taxation within any specified
          period or otherwise, where such Taxation relates to a profit, income
          or gain, transaction, event, omission or circumstance arising,
          occurring or deemed to arise or occur (whether wholly or partly) on or
          prior to Completion.

     34.5 No relief (whether by way of deduction, reduction, set off, exemption,
          repayment or allowance or otherwise) from, against or in respect of
          any Taxation has been claimed by and/or given to the Company which
          would or might be effectively withdrawn, postponed, restricted or
          otherwise lost as a result of any act, omission, event or circumstance
          arising, occurring or effected after Completion.

     34.6 The Company has not received a notice under the provisions of
          section 23 ICTA.

35   Distributions and payments

     35.1 The Company has deducted and properly accounted to the appropriate
          Taxation Authority for all amounts which it has been obliged to deduct
          in respect of Taxation, has complied fully with all reporting
          requirements relating to all such amounts and has (where required by
          the applicable Taxation Statute) duly provided certificates of
          deduction of tax to the recipients of payments from which deductions
          have been made.

     35.2 The Company has not at any time declared, paid or made any dividend or
          other payment which is, or could be treated as, a distribution for the
          purposes of Part
<PAGE>

           VI ICTA or section 418 ICTA except any dividend disclosed in its
           audited statutory accounts nor is it bound to make such a
           distribution.

     35.3  There are no securities (within the meaning of section 254(1) ICTA)
           of the Company in issue or which the Company has agreed to issue any
           payment in respect of which falls to be treated as a distribution for
           the purposes of section 209 ICTA.

     35.4  The Company has not at any time issued or agreed to issue any share
           capital as paid up otherwise than by the receipt of new
           consideration, after repaying any share capital, as mentioned in
           section 210 ICTA.

     35.5  The Company has not made or received any exempt distribution within
           the meaning of section 213 ICTA, and has at no time been a relevant
           company in relation to an exempt distribution for the purposes of
           that section or concerned in an exempt distribution for the purposes
           of section 214 ICTA.

     35.6  The Company has not at any time received a capital distribution to
           which section 189 TCGA could apply.

     35.7  No rents, interest, annual payments or other sums exceeding in total
           (Pounds)5,000 of an income nature paid or payable by the Company
           since the Accounting Date, or which the Company is under an
           obligation to pay, will be wholly or partially disallowable as
           deductions or charges in computing the profits of the Company for the
           purposes of corporation tax, whether by virtue of the provisions of
           section 74, 79, 125, 338, 577, 779 to 786 (inclusive) or 787 ICTA or
           otherwise.

     35.8  The Company has not since the Accounting Date made any payment to, or
           provided any benefit for, any present or former director, employee or
           officer which is wholly or partially disallowable as a deduction in
           computing the profits of the Company for the purposes of corporation
           tax, and is under no obligation to make any such payment or provide
           any such benefit.

     35.9  The Company is not and never has been a party to any interest rate
           contract or option, or currency contract or option which is or may
           become a qualifying contract as described in Chapter II Part IV FA
           1994.

     35.10 The Company has no assets or liabilities to which Chapter II Part II
           FA 1993 could apply.

     35.11 The Company has not elected that any dividend it has paid be treated
           as a foreign income dividend as described in Chapter VA Part VI ICTA.
<PAGE>

     35.12  The Company has not paid any dividend to which section 246T ICTA has
            applied.

36   Employee benefits

     36.1   Without prejudice to the generality of paragraph 35.1, the Company
            has properly operated the Pay As You Earn system, by making
            deductions, as required by the applicable Taxation Statute, from all
            payments made, or treated as made, to its directors, employees or
            officers or former directors, employees or officers or any persons
            required to be treated as such, and accounting to the Inland Revenue
            for all Taxation so deducted and for all Taxation chargeable on the
            Company on benefits provided for its directors, employees or
            officers, or former directors, employees or officers.

     36.2   The Company has complied with all reporting requirements, and proper
            records have been maintained, relating to all payments and benefits
            made or provided, or treated as made or provided, to its directors,
            employees or officers or former directors, employees or officers.

     36.3   Without prejudice to the generality of paragraph 32.6, the
            Disclosure Letter contains full details of all dispensations granted
            to the Company by the Inland Revenue under section 166 ICTA or
            otherwise relating to payments and benefits made or provided, or
            treated as made or provided, to its directors, employees or officers
            or former directors, employees or officers or any persons required
            to be treated as such, and the reporting requirements mentioned in
            relation to such payments and benefits in paragraph 36.2.

     36.4   The Company has complied fully with its obligations under the
            provisions of sections 136(6) and 139(5) ICTA and section 85 FA
            1988.

     36.5   The Disclosure Letter contains full details of all share option
            schemes and profit sharing schemes established by the Company
            whether approved by the Inland Revenue under the provisions of
            Schedule 9 ICTA or otherwise.

     36.6   The Company has not established a qualifying employee share
            ownership trust within the meaning of section 74 and Schedule 5 FA
            1989 and no chargeable event within the meaning of section 69 FA
            1989 has occurred.

     36.7   The Disclosure Letter contains full details of all profit-related
            pay schemes providing for the payment to any employee of the Company
            of emoluments
<PAGE>

          calculated by reference to profits, which have ever been registered
          under Chapter III Part V ICTA.

     36.8 The Company has complied with its obligations under Chapter IV Part
          XIII ICTA.

     36.9 The Company has complied fully with all its obligations relating to
          Class 1 and Class 1A National Insurance Contributions, both primary
          and secondary.

37   Close companies

     The Company is not, and has never been, a close company as defined in
     section 414 ICTA.

38   Group transactions

     The Company has not at any time:

     acquired any asset from any company which at the time of the acquisition
     was a member of the same group of companies as defined in section 170 TCGA;

     entered into or been otherwise involved in any transaction to which section
     774 ICTA applies;

     surrendered or claimed or agreed or arranged to surrender or claim (and
     prior to Completion will not surrender or claim or agree or arrange to
     surrender or claim) any amount by way of Group Relief pursuant to sections
     402 to 413 (inclusive) ICTA and has not made or received and is not liable
     to make or entitled to receive a payment for Group Relief;

     surrendered or claimed or agreed or arranged to surrender or claim (and
     prior to Completion will not surrender or claim or agree or arrange to
     surrender or claim) any amount of ACT pursuant to section 240 ICTA and has
     not made or received and is not liable to make or receive a payment for
     surrender of ACT;

     joined in the making of any election pursuant to section 247 ICTA or paid
     any dividend without paying ACT or made any payment without deduction of
     income tax in circumstances such that ACT ought to have been paid or income
     tax ought to have been deducted as mentioned in section 247(6) ICTA;

     been a party to any such reconstruction as is described in section 343
     ICTA;


<PAGE>

     been the subject of or otherwise involved in any arrangements as are
     referred to in section 240(11) or 410 ICTA;

     acquired an asset as trading stock from a member of the same group where
     the asset did not form part of the trading stock of any trade carried on by
     the other member, as mentioned in section 173(1) TCGA, or disposed of an
     asset which formed part of the trading stock of any trade carried on by the
     Company to another member of the same group which acquired the asset
     otherwise than as trading stock of a trade carried on by the other member,
     as mentioned in section 173(2) TCGA;

     been, and there are no circumstances by virtue of which the Company could
     be, assessed or charged to corporation tax by virtue of the provisions of
     section 178(9), 179(11), 190 or 191 TCGA and is not entitled to recover or
     liable to have recovered from it any sums paid pursuant to any of those
     sections; or

     ceased to be a member of a group of companies in such circumstances that a
     profit or gain was deemed to accrue to the Company by virtue of section 178
     or 179 TCGA or at a time when it held an interest in land which could have
     been chargeable to Taxation under section 21 Development Land Tax Act 1976
     and neither the execution of this Agreement nor Completion will result in
     any profit or gain being deemed to accrue to the Company for any Taxation
     purpose whether pursuant to section 178 or 179 TCGA or otherwise.

39   Gifts

     39.1 There is no outstanding Inland Revenue charge (as defined in section
          237 IHTA) over any asset of the Company or over any of the Shares.

     39.2 There are in existence no circumstances by virtue of which any such
          power as is mentioned in section 212 IHTA could be exercised in
          relation to any asset of the Company or to any of the Shares or by
          virtue of which any such power could be exercised but for the
          provisions of section 204(6) IHTA.

     39.3 The Company has not been a party to associated operations in relation
          to a transfer of value within the meaning of section 268 IHTA.

     39.4 The Company has not received any asset by way of gift as mentioned in
          section 282 TCGA.

     39.5 No expenditure incurred by the Company on the acquisition of any
          shares is liable to be reduced under the provisions of section 125
          TCGA.
<PAGE>

40   Tax avoidance

     The Company has not entered into or been a party to any scheme, arrangement
     or transaction designed partly or wholly or containing steps or stages
     designed partly or wholly for the purpose of avoiding or deferring Taxation
     or reducing a liability to Taxation and in particular, but without
     limitation, has not entered into or been a party to any scheme, arrangement
     or transaction to which the provisions of any of sections 34 to 37
     (inclusive), 56 and 398, 395, 399, 703 to 709 (inclusive), 713, 714, 729 to
     737 (inclusive), 770, 775, 776, 779 to 786 (inclusive), 787 and 798 ICTA
     could apply.

41   Base values and acquisition costs

     41.1 If each of the capital assets of the Company owned at the Accounting
          Date was disposed of for a consideration equal to the book value of
          that asset in, or adopted for the purpose of, the Balance Sheet, or in
          the case of assets acquired since the Accounting Date, equal to the
          consideration given on acquisition, no liability to corporation tax on
          chargeable gains or balancing charge under the CAA would arise (and
          for this purpose there will be disregarded any relief or allowance
          available to the Company other than amounts falling to be deducted
          from the consideration receivable under section 38 TCGA).

     41.2 The Company does not own any wasting asset within the meaning of
          section 44 TCGA which does not qualify in full for capital allowances
          as described in section 47(1) TCGA.

42   Capital gains

     The Company has not at any time:

     42.1 made a claim under sections 152 to 158 (inclusive) or 175 or 247 TCGA
          which affects the amount of the chargeable gain or allowable loss
          which would, but for such claim, have arisen upon a disposal of any
          asset or acquired any asset or any interest in any asset in
          circumstances in which another company has made a claim under section
          175 TCGA which affects for the purposes of the TCGA the amount or
          value of the consideration given for such asset or interest;

     42.2 been a party to, involved in, or connected with any disposal of assets
          within the meaning of section 29 TCGA or any scheme or arrangement
          such as are mentioned in section 30 TCGA;
<PAGE>

     42.3  been a party to, involved in, or connected with any exchange of
           securities whether or not (by virtue of section 135 TCGA) section 127
           TCGA applied to the exchange;

     42.4  carried out or been involved in or connected with any reorganisation
           or scheme of reconstruction or amalgamation whether or not (by virtue
           of section 126 or 136 TCGA) section 127 TCGA applied to such
           reorganisation or scheme of reconstruction or amalgamation;

     42.5  carried out or been involved in or connected with any scheme of
           reconstruction or amalgamation involving a transfer of business
           assets whether or not section 139 TCGA applied to the transfer;

     42.6  been a party to, involved in, or connected with, any depreciatory
           transaction to which section 176 TCGA applied (including any
           transaction to which that section applied by virtue of section 177
           TCGA);

     42.7  acquired or disposed of any asset or entered into any transaction or
           arrangement whatsoever otherwise than by way of bargain at arm's
           length or in respect of which there may be substituted for the actual
           consideration given or received by the Company a different
           consideration for any Taxation purpose;

     42.8  realised a loss to which section 18(3) TCGA applied;

     42.9  realised a pre-entry loss or acquired any pre-entry asset as defined
           in Schedule 7A TCGA;

     42.10 disposed of any chargeable asset for a consideration not payable
           wholly in cash on completion of the disposal;

     42.11 acquired any debt (other than a debt on a security (as defined in
           section 132 TCGA)) in respect of which it is not the original
           creditor;

     42.12 made an election under paragraph 4 Schedule 2 TCGA and no asset owned
           by the Company is subject to a deemed disposal and re-acquisition
           under paragraph 16, 19 or 20 Schedule 2 TCGA;

     42.13 made an election under section 35(5) TCGA nor has the Company made
           its first relevant disposal for the purposes of section 35(6) TCGA;
<PAGE>

     42.14     acquired any policy of assurance or contract for a deferred
               annuity or interest in any such policy or contract in
               circumstances such that a chargeable gain could arise on disposal
               under section 210 TCGA;

     42.15     transferred a trade carried on by it outside the United Kingdom
               through a branch or agency in circumstances such that a
               chargeable gain could be deemed to arise at a date after such
               transfer under section 140 TCGA;

     42.16     made any claim or election under section 161(3) TCGA;

     42.17     made any claim under section 253 or 254 TCGA and no chargeable
               gain has arisen or is likely to arise under section 253 or 254
               TCGA.

43   Capital allowances

     43.1      All capital expenditure incurred by the Company since the
               Accounting Date and all capital expenditure which may be incurred
               by the Company under any existing contract has qualified or will
               be capable of qualifying for capital allowances.

     43.2      There are set out in the Disclosure Letter details of all capital
               allowances claimed in respect of the accounting period of the
               Company ended on the Accounting Date in respect of each asset or
               pool of assets in respect of which separate computations for
               capital allowances are required to be made or, as a result of any
               election, are made.

     43.3      Nothing has occurred since the Accounting Date as a result of
               which the Company could be required to bring a disposal value
               into account or suffer a balancing charge for the purpose of
               capital allowances under section 4, 24, 87, 100 or 128 CAA or a
               withdrawal of first year allowances or a recovery of excess
               relief under section 46 or 47 CAA.

     43.4      The Company has not incurred any expenditure on the provision of
               any capital allowance bearing asset for leasing.

     43.5      The Company has not made any election under section 37 CAA nor is
               it taken to have made any such election under section 37(8)(c)
               CAA.

     43.6      The Company has not obtained any capital allowances under Chapter
               VI Part II CAA.
<PAGE>

44   VAT: general

     44.1   The Company:

            44.1.1    is duly registered and is a taxable person for the
                      purposes of VAT and such registration is not subject to
                      any conditions imposed by or agreed with the Commissioners
                      of Customs and Excise;

            44.1.2    has complied in all respects with all statutory
                      requirements, orders, provisions, directions or conditions
                      relating to value added tax;

            44.1.3    maintains complete, correct and up-to-date records for the
                      purposes of all legislation relating to VAT and is not
                      subject to any condition imposed by the Commissioners of
                      Customs and Excise under paragraph 6 Schedule 11 VATA;

            44.1.4    is not in arrears with any payment or returns under
                      legislation relating to VAT or excise duties, or liable to
                      any abnormal or non-routine payment of VAT, or any
                      forfeiture or penalty, or to the operation of any penal
                      provision;

            44.1.5    has not within the two years ending on the date of this
                      Agreement been served with any penalty liability notice
                      under section 64 VATA or any surcharge liability notice
                      under section 59 VATA or been issued with any written
                      warning under section 76(2) VATA;

            44.1.6    has not been required by the Commissioners of Customs and
                      Excise to give security under paragraph 4 Schedule 11
                      VATA;

            44.1.7    has not been or applied for treatment as a member of a
                      group for VAT purposes under section 43 VATA and no
                      transaction has been effected in consequence of which the
                      Company is or may be held liable for any VAT arising from
                      supplies made by another company;

            44.1.8    has no interest and has not at any time within the period
                      of ten years preceding the date of this Agreement had any
                      interest in any assets to which Part XV of the Value Added
                      Tax Regulations 1995 apply; and

            44.1.9    is not, and has not agreed to become, an agent, manager or
                      factor for the purposes of section 47 VATA of any person
                      who is not resident in the United Kingdom.
<PAGE>

     44.2  All supplies of goods and services made by the Company are taxable
           supplies for the purposes of the VATA and the Company has not been
           and will not be denied credit for any input tax by reason of the
           operation of section 26 VATA or otherwise.

     44.3  All goods or services supplied to the Company, or goods imported by
           the Company, in respect of which the Company has claimed credit for
           input tax under section 25 VATA, are used or to be used wholly for
           the purposes of the Company's business.

     44.4  The Company has never disposed of or acquired any business or assets
           in the circumstances mentioned in section 49 VATA or Article 5 of the
           Value Added Tax (Special Provisions) Order 1995.

     44.5  The Company has never been registered for the purposes of VAT by
           reason of its intention to make taxable supplies (within the meaning
           of section 4 VATA).

     44.6  There are set out in the Disclosure Letter details of all outstanding
           claims made by the Company under section 22 Value Added Tax Act 1983
           and section 36 VATA.

     44.7  The Company has not been a party to any transaction or arrangement as
           a result of which a direction has been or may be given under Schedule
           9A VATA.

45   VAT: property transactions

     45.1  The Company has not incurred any liability in respect of VAT (whether
           to HM Customs and Excise or to any other person) by reason of the
           provisions of paragraph 2(1) Schedule 10 VATA and there are no
           circumstances whereby the Company could become so liable as a result
           of a person making an election under that paragraph.

     45.2  Neither the Company nor any relevant associate (within the meaning of
           paragraph 3(7) Schedule 10 VATA) has made any election under
           paragraph 2(1) Schedule 10 VATA in respect of any land in, over or in
           respect of which the Company has any interest, right or licence to
           occupy and the Company is not aware of any intention to make such an
           election.

     45.3  The Company does not own the fee simple in any building or work such
           as is referred to in Item 1(a) Group 1 Schedule 9 VATA.
<PAGE>

     45.4  No interest in or right over land or any licence to occupy land of
           the Company constitutes or is subject to a developmental tenancy,
           developmental lease or developmental licence such as is referred to
           in Item 1(b) Group 1 Schedule 9 VATA.

     45.5  The Company has not incurred any liability under the provisions of
           paragraph 6 Schedule 10 VATA or the Value Added Tax (Self Supply of
           Construction Services) Order 1989 and there are no circumstances in
           existence at the date of this Agreement whereby the Company would
           become so liable on the occurrence of any of the events mentioned in
           paragraph 5(1)(a) or 5(1)(b) Schedule 10 VATA or paragraph 3 of the
           Value Added Tax (Self Supply of Construction Services) Order 1989.

     45.6  The Company has not issued any certificate such as is mentioned in
           paragraph 13(4)(f) Schedule 3 FA 1989 and has not constructed any
           building or work (or reconstructed any building) in circumstances in
           which such a certificate could have been issued.

46   Stamp duty and stamp duty reserve tax

     46.1  All documents which are liable to stamp duty and which confer any
           right upon the Company have been duly stamped and no document which
           confers any right upon the Company and which is outside the United
           Kingdom would attract stamp duty if it were brought into the United
           Kingdom and there is no liability to any penalty in respect of such
           duty or circumstances which may give rise to such a penalty to the
           Vendors' best knowledge and belief

     46.2  The Company has never incurred or otherwise been under a liability to
           stamp duty reserve tax and there are no circumstances which may
           result in the Company being so liable.

     46.3  Within the five years ending on the date of this Agreement, the
           Company has not made any claim for relief or exemption under section
           42 FA 1930 or section 75, 76 or 77 FA 1986.

47   Residence and offshore interests

     47.1  The Company is and has at all times been resident in the United
           Kingdom for the purposes of all Taxation Statutes and has not at any
           time been resident outside the United Kingdom for the purposes of any
           Taxation Statute or any double taxation arrangements.
<PAGE>

     47.2  The Company is not, and has never been, a dual-resident investing
           company within the meaning of section 404 ICTA.

     47.3  The Company has not at any time entered into any transaction falling
           within section 765 ICTA or failed to comply with the requirements of
           section 765A ICTA.

     47.4  The Company has not at any time been subject to Taxation in any
           jurisdiction outside the United Kingdom or had a branch outside the
           United Kingdom or any permanent establishment (as that expression is
           defined in the respective double taxation relief orders current at
           the date of this Agreement) outside the United Kingdom.

     47.5  The Company does not own and has not at any time owned a material
           interest in an offshore fund which is or has at any material time
           been a non-qualifying offshore fund within the meaning of section 760
           ICTA.

     47.6  The Company does not own and has not at any time owned any interest
           in a controlled foreign company within the meaning of sections 747
           and 752 ICTA.

     47.7  The Company is not, and has not at any time since 1 April 1985 been,
           a company which has, or an associated company of a company which has,
           a qualifying presence in a unitary state for the purposes of sections
           812 to 814 ICTA.

     47.8  The Company is not assessable and has not at any time been assessed
           to tax under section 78 TMA.

     47.9  The Company does not and has at no time held shares in a company
           which is not resident in the United Kingdom and which would be a
           close company if it were resident in the United Kingdom, in
           circumstances such that a chargeable gain accruing to that other
           company could be apportioned to the Company under section 13 TCGA.

48   The Balance Sheet

     The Balance Sheet fully provides for all Taxation (on the basis of the
     rates applicable to the financial year which ended on the Accounting Date)
     liable to be assessed on or in respect of or by reference to:

     48.1  the profits, gains, income and earnings (whether actual or deemed)
           for any period ended on or before the Accounting Date; or
<PAGE>

     48.2  any distributions (within the meaning of Part VI or section 418 ICTA)
           made or deemed to be made on or before the Accounting Date; or

     48.3  any other transaction entered into or deemed to be entered into on or
           before the Accounting Date.

49   Post-Accounting Date

     Since the Accounting Date:

     49.1  the Company has not incurred and has not become liable to incur
           expenditure which will not be wholly deductible in computing its
           taxable profits, except for expenditure on the acquisition of an
           asset to be held otherwise than as Stock and expenditure for
           entertainment details of which are, in each case, set out in the
           Disclosure Letter;

     49.2  no event has occurred which has given rise or will or may give rise
           to a liability to Taxation on the Company in respect of deemed (as
           opposed to actual) income, profits or gains or which has resulted or
           will or may result in the Company becoming liable to Taxation
           directly or primarily chargeable against or attributable to another
           person;

     49.3  the Company has not entered into any transaction which has given rise
           or may give rise to a Liability to Taxation on a chargeable gain; and

     49.4  no event has occurred as a result of which the Company could be
           required to bring a disposal value into account or suffer a balancing
           charge for the purposes of capital allowances under section 4, 24,
           87, 100 or 128 CAA or a withdrawal of first year allowances or a
           recovery of excess relief under section 46 or 47 CAA.

50   Shares and securities

     50.1  The Company has not at any time:

           50.1.1   purchased or agreed to purchase, repaid or agreed to repay
                    or redeemed or agreed to redeem any shares of any class of
                    its share capital or any amount paid up on any of its
                    shares;

           50.1.2   capitalised or agreed to capitalise in the form of
                    redeemable shares or debentures any profits or reserves of
                    any class or description or passed or agreed to pass any
                    resolution to do so; or
<PAGE>

           50.1.3   provided capital to any company on terms whereby the company
                    so capitalised has in consideration of the provision of
                    capital issued loan stock or other securities on terms which
                    were otherwise than by way of a bargain made at arm's
                    length.

     50.2     The Company does not hold or have in issue:

           50.2.1   any quoted Eurobond within the meaning of section 124 ICTA;

           50.2.2   any shares or securities (as defined in section 132(3)(b)
                    TCGA) other than the Shares;

           50.2.3   any qualifying corporate bond (as defined in section 117
                    TCGA);

     13.1.1   any deep discount security (as defined in paragraph 1 Schedule 4
              ICTA);

     13.1.2   any deep gain security (as defined in paragraph 1 Schedule 11 FA
              1989);

     13.1.3   any qualifying indexed security (as defined in paragraph 2
              Schedule 11 FA 1989);

     13.1.4   any qualifying convertible security (as defined in paragraph 2
              Schedule 10 FA 1990);

     13.1.5   any gilt-edged security falling within paragraph 20 Schedule 11 FA
              1989 or any non-gilt-edged security falling within paragraph 21
              Schedule 11 FA 1989;

     13.1.6   any security as defined in section 710 ICTA and has not made any
              transfer to which sections 711 to 728 (inclusive) ICTA could
              apply; or

     13.1.7   any debt which is a qualifying debt as defined in section 61 FA
              1993.



SIGNED by DAVID BIRSS         )
in the presence of:           )          ....................................


Witness signature:.................................


Name:................................................


Address:.............................................

 .......................................................

Occupation:.........................................
<PAGE>

SIGNED by JIM CHAPMAN                   )
in the presence of:                     )      ..........................

Witness signature:.......................

Name:....................................

Address:.................................

 .........................................

Occupation:..............................


SIGNED by PHILIP CORBISHLEY as lawful
attorney for ALICE CHENG
in the presence of:                     )      ...........................

Witness signature:.......................

Name:....................................

Address:.................................

 .........................................

Occupation:..............................
<PAGE>

SIGNED by PHILIP CORBISHLEY
in the presence of:                     )          ..........................

Witness signature:.......................

Name:....................................

Address:.................................

 .........................................

Occupation:..............................


SIGNED by SIMON HUGHES
in the presence of:                     )          ..........................

Witness signature:.......................

Name:....................................

Address:.................................

 .........................................

Occupation:..............................



SIGNED by IAN MOIR
in the presence of:                     )          ..........................

Witness signature:.......................

Name:....................................

Address:.................................

 .........................................

Occupation:..............................
<PAGE>

SIGNED by Philip Corbishley                  )
duly authorised to sign for and on behalf of
CLARENDON NOMINEES LIMITED

in the presence of:                          )     ..........................

Witness signature:............................

Name:.........................................

Address:......................................

 ..............................................

Occupation:...................................



SIGNED by Philip Corbishley                  )
duly authorised to sign for and on behalf of
CLARENDON TRUST CO LIMITED

in the presence of:                          )     ..........................

Witness signature:............................

Name:.........................................

Address:......................................

 ..............................................

Occupation:...................................



SIGNED by
a duly authorised representative for and on behalf of
COMMERZBANK BETEILIGUNGS GESELLSCHAFF GMBH

in the presence of:                          )     ..........................

Witness signature:............................

Name:.........................................

Address:......................................

 ..............................................
<PAGE>

Occupation:...................................



SIGNED by PHILIP CORBISHLEY                  )
duly authorised to sign for and on behalf of
MAKINEN PROPERTIES LIMITED

in the presence of:                          )     ...........................

Witness signature:............................

Name:.........................................

Address:......................................

 ..............................................

Occupation:...................................



SIGNED by PHILIP CORBISHLEY                  )
duly authorised to sign for and on behalf of
MEES PIERSON (CAYMAN) LIMITED
as trustee of Sofaer Funds / SCI Global Hedge
Fund by its lawful attorney Philip Corbishley

in the presence of:                          )     ...........................

Witness signature:............................

Name:.........................................

Address:......................................

 ..............................................

Occupation:...................................



SIGNED by
a duly authorised representative for and on behalf of
HSBC FINANCIAL SERVICES (CAYMAN) LIMITED solely in its capacity as trustee of
the Abel-Sci Venture Fund

in the presence of:                          )     ...........................

Witness signature:............................

Name:.........................................
<PAGE>

Address:......................................

 ..............................................

Occupation:...................................



SIGNED by PHILIP CORBISHLEY                  )
duly authorised to sign for and on behalf of
PEARL FINANCE LIMITED

in the presence of:                          )     ...........................

Witness signature:............................

Name:.........................................

Address:......................................

 ..............................................

Occupation:...................................



SIGNED by PHILIP CORBISHLEY                  )
duly authorised to sign for and on behalf of
SANDFORD CHILDREN'S TRUST
in the presence of:                          )     ...........................

Witness signature:............................

Name:.........................................

Address:......................................

 ..............................................

Occupation:...................................



SIGNED by PHILIP CORBISHLEY                  )

duly authorised to sign for and on behalf of
RALEIGH NOMINEES LIMITED

in the presence of:                          )     ...........................
<PAGE>

Witness signature:............................

Name:.........................................

Address:......................................

 ..............................................

Occupation:...................................



SIGNED by                                    )

duly authorised to sign for and on behalf of
TUT SYSTEMS.INC

in the presence of:                          )     ...........................

Witness signature:............................

Name:.........................................

Address:......................................

 ..............................................

Occupation:...................................


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