Dated 15 December, 2004 (1) TGC RESEARCH LIMITED (as the Chargor) - and - (2) BCC ACQUISITION II LLC (as the Agent) Debenture This Deed is subject to the terms and conditions of the Subordination Agreement (as defined herein) London 99 Bishopsgate London EC2M 3XF (44) 020 7710 1000 (Tel) (44) 020 7374 4460 (Fax) www.lw.com 1 CONTENTS

Exhibit 10.12

Dated 15 December, 2004

(1) TGC RESEARCH LIMITED
(as the Chargor)

- and -

(2) BCC ACQUISITION II LLC
(as the Agent)

Debenture

This Deed is subject to the terms and conditions of the Subordination Agreement (as defined herein)

London

99 Bishopsgate
London EC2M 3XF
(44) 020 7710 1000 (Tel)
(44) 020 7374 4460 (Fax)
www.lw.com

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CONTENTS

Clause Page

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THIS DEBENTURE is made by way of deed on 15 December, 2004

BETWEEN

BACKGROUND

(A) DMED and the Beneficiaries are parties to the Note Purchase Agreement (as defined below).

NOW THIS DEED WITNESSES as follows:

1. INTERPRETATION

1.1 Definitions

Save as otherwise provided in this Debenture, the following words and phrases have the following meanings throughout this Debenture:

1.2 Interpretation

Any reference in this Debenture to (or to any specified provision of) this “Debenture”, the “Note Purchase Agreement” or any other “Finance Document” or to any other agreement or document shall, unless the context otherwise requires, be construed as a reference to this Debenture, the Note Purchase Agreement or such other Finance Document or such other agreement or document (or that provision) as the same may from time to time be amended, varied, supplemented, novated or replaced (but excluding for this purpose any amendment, variation, supplement, novation or replacement which is contrary to any provision of any Finance Document). The reference shall include any document which is supplemental to, is expressed to be collateral with, or is entered into pursuant to or in accordance with, and any certificate, instrument, notification or document which is entered into or delivered in connection with or pursuant to or in accordance with, the terms of this Debenture, the Note Purchase Agreement or such other Finance Document or, as the case may be, such other agreement or document.

Any reference in this Debenture to the “Agent” or any “Beneficiary” shall be construed so as to include its and any subsequent successors, transferees and assigns in accordance with their respective interests.

1.3 Incorporation of Terms by Reference

Unless the context requires otherwise, words and expressions defined or construed in the Note Purchase Agreement, the Act or the Insolvency Act 1986 and which are not defined or construed in this Debenture shall bear the same meanings when used in this Debenture.

1.4 Use of Lists and Examples

In construing this Debenture general words introduced by the word “other” shall not be given a restrictive meaning by reason of the fact that they are preceded by words indicating a particular class of acts, matters or things and general words shall not be given a restrictive meaning by reason of the fact that they are followed by particular examples intended to be embraced by the general words.

1.5 Whole Agreement

This Debenture supersedes any previous agreement, whether written or oral, express or implied, between the Chargor and the Agent in relation to the subject matter of this Debenture.

1.6 Headings

The headings in this Debenture are for convenience only and shall not affect its meaning and references to a Clause, Schedule or paragraph are (unless otherwise stated) to a Clause of, Schedule to or paragraph of, this Debenture.

1.7 Counterparts

This Debenture may be signed in any number of counterparts, all of which taken together shall constitute one and the same instrument. Any party may enter into this Debenture by signing any such counterpart.

1.8 Singular/Plural

Save where the context otherwise requires, the plural of any term includes the singular and vice versa.

1.9 No Partnership

Nothing in this Debenture or envisaged hereby shall operate, whether directly or indirectly, to constitute a partnership between the Chargor and any Beneficiary or the Agent.

1.10 Amount of Secured Obligations

A certificate of the Agent as to the amount of any Secured Obligations due at any time will, in the absence of manifest error, be conclusive and binding on the Chargor.

1.11 Security Enforceable

The security constituted by, and the rights of the Agent and the Beneficiaries under, this Debenture shall be enforceable notwithstanding any change in the constitution of the Agent or any Beneficiary or its absorption in or amalgamation with any other person or the acquisition of all or part of its undertaking by any other person.

1.12 Statutory References

Unless the context otherwise requires, a reference to a statute or any provision thereof is to be construed as a reference to that statute or such provision thereof as it may be amended or re-enacted from time to time.

1.13 Disposition of the Mortgaged Property

The terms of the other Finance Documents and of any side letters between any parties to such documents in relation to any Finance Document are incorporated in this Debenture to the extent required to ensure that any purported disposition of the Collateral contained in this Debenture is a valid disposition in accordance with section 2(1) of the Law of Property (Miscellaneous Provisions) Act 1989.

1.14 Rule 139 Land Registration Rules 1925

For the purposes only of Rule 139 of the Land Registration Rules 1925, the parties to this Debenture agree that each of the Finance Documents other than this Debenture do not form part of the terms and conditions of the Security.

1.15 Assets

A reference in this Debenture to any “assets” includes, unless the context otherwise requires, property, business, undertakings and rights of every kind, present and future and contingent (including uncalled share capital) and every kind of interest in any asset.

1.16 Schedules

The fact that no details are included in a relevant Schedule does not affect the validity or enforceability of the Security.

Each of the parties hereto (on its own behalf and on behalf of each other person, if any, on whose behalf it is entering into this Debenture) acknowledges the existence of the first ranking security granted in accordance with the terms of the First Ranking Debenture and that all of the provisions of this Debenture, including without limitation all rights and obligations of the Agent, any Receiver appointed in accordance with the terms hereof and the Chargor hereunder, are subject to, and shall only be exercised in accordance with and if permitted by, the terms of the Subordination Agreement.

1.20 First Ranking Debenture

The Agent hereby acknowledges the existence and the terms of the First Ranking Debenture, and acknowledges that, notwithstanding any provision of this Debenture, the Chargor shall not be deemed to be in breach of any such provision if failure to comply with the terms thereof is a direct result of the Chargor complying with its obligations in the First Ranking Debenture.

2. PAYMENT OF THE SECURED OBLIGATIONS

2.1 Covenant

The Chargor hereby unconditionally and irrevocably, as primary obligor and not merely as surety, covenants with the Beneficiaries that it will pay or discharge the Secured Obligations on the due date for payment therefor in the manner provided in the relevant Finance Document.

2.2 Interest

Save to the extent otherwise agreed, interest may be added by the Agent to any amount which shall remain unpaid on the due date for payment therefor from such due date until payment in full at the Default Rate applicable to the relevant outstanding Secured Obligations under the Finance Documents.

2.3 Costs and Expenses

Immediately upon demand, the Chargor shall pay all fees, costs and expenses (including legal fees and any value added tax) incurred from time to time in connection with the enforcement of or preservation of rights under this Debenture by the Agent, or any Receiver, attorney, manager, trustee or any other person appointed by the Agent under this Debenture or by statute.

3. CHARGING PROVISIONS

3.1 Specific Charges

Subject to Clause 3.4, the Chargor with full title guarantee and as a continuing security for the payment, performance and discharge of the Secured Obligations hereby charges in favour of the Agent (or, if the Agent so chooses, its nominee) for the benefit of the Beneficiaries all of its rights, title and interest in and to the following assets, both present and future, from time to time owned by it or in which it has an interest:

(c) by way of first fixed charge:

(iii) its goodwill and its uncalled share capital both present and future;

3.2 Floating Charge

The Chargor with full title guarantee and as a continuing security for the payment, performance and discharge of the Secured Obligations hereby charges to the Agent for the benefit of the Beneficiaries by way of first floating charge all of its undertakings, property, assets and rights (including its Inventory and Equipment), whatsoever and wheresoever, both present and future (save insofar as any of the same shall for the time being be effectively mortgaged or charged by way of first fixed charge under the provisions of Clause 3.1 or assigned by way of security under the provisions of Clause 3.3). The floating charge created by the Chargor pursuant to this Clause 3.2 is a “qualifying floating charge” for the purposes of paragraph 14.2(a) of Schedule B1 of the Insolvency Act 1986 and paragraph 14 of Schedule B1 of the Insolvency Act shall apply to this Debenture.

3.3 Assignments by way of Security

Subject to Clause 3.4, the Chargor with full title guarantee and as a continuing security for the payment, performance and discharge of the Secured Obligations hereby assigns absolutely (in each case to the fullest extent capable of assignment) by way of security to the Agent for the benefit of the Beneficiaries all of its present and future rights, title and interest in and to:

(a) the proceeds of the Policies;

(b) the Receivables;

(d) the Related Rights; and

3.4 Removal of Impediments to Charges and Assignments

To the extent that:

and upon written notice served upon the Chargor by the Agent, the Chargor shall use its best endeavours as soon as reasonably practicable to obtain any relevant consent to such assignment or charge or to otherwise render the same capable of assignment or charge and, pending such interest becoming capable of assignment or charge, the charge purported to be created by Clause 3.1 or the assignment purported to be effected by Clause 3.3 (as the case may be) shall, without prejudice to the provisions of Clause 3.1(c)(ix) in relation to Receivables, only operate as a charge or an assignment (as the case may be) by way of continuing security of any and all proceeds, damages, compensation, remuneration, profit, rent or income which the Chargor may derive therefrom or be awarded or entitled to in respect thereof, in each case as continuing security for the payment, discharge and performance of the Secured Obligations. Forthwith upon receipt of the relevant consent, the relevant right, title or interest shall stand charged or assigned to the Agent under Clause 3.1 or 3.3 (as the case may be) and the Chargor will, if required by the Agent, forthwith execute a valid fixed charge or legal assignment (as the case may be) in such form as the Agent shall require but on terms no more onerous that this Debenture.

4. REPRESENTATIONS AND WARRANTIES AND COVENANTS

4.1 Representations and Warranties

The Chargor makes the representations and warranties set out in this Clause 4.1 to the Agent for the benefit of the Beneficiaries.

(a) Ownership of Collateral and Ranking

It is the sole legal and beneficial owner of all the Collateral now purportedly owned or hereafter purportedly acquired by it (including the DML Assets), and to the best of its knowledge, such Collateral is free from all Liens whatsoever (other than Liens permitted under the terms of the Finance Documents and the Security Documents), whether voluntarily or involuntarily created and whether or not perfected. Forthwith following the execution of this Debenture the Chargor will (if it has not already done so) acquire the DML Assets which shall (for the avoidance of doubt) become part of the Collateral upon acquisition thereof.

(b) Equipment and Property

(c) No Claims

None of the Collateral is, to the Chargor’s knowledge, the subject of any claim, assertion, infringement, attack, right, action or other restriction or arrangement of whatever nature which does or could materially and adversely affect the validity, enforceability or ownership of the Collateral by the Chargor or its utilisation by the Chargor.

(d) Securities

The Chargor is the registered holder and legal and beneficial owner of the Securities listed in Schedule 6 (if any) and, as at the date of this Debenture, owns no other Securities.

(e) Intellectual Property; Licences, etc

(f) Accuracy of Schedules

Each of the Schedules is, to the best of the Chargor’s knowledge, accurate in all material respects as at the date of this Debenture.

The representations and warranties set out in this Clause 4.1 are made on the date of this Debenture.

4.2 Covenants relating to the Collateral

The Chargor covenants with the Agent for the benefit of the Beneficiaries that it will:

(a) State of repair and condition

keep the Collateral in a good and substantial state of repair;

(b) Alterations

procure that no material alteration or addition is made to its Property, no component of Equipment is removed from the same (except in the ordinary course of use, repair, maintenance and/or improvement), no new buildings are erected thereon and that nothing is done on its Property which constitutes “development” as defined in any Planning Act which, in each case, would, or would be reasonably likely to, materially adversely affect the value or use of the relevant Property;

(c) Third party interests

procure that it does not permit any person to be registered as proprietor of any right or interest in respect of its Property (other than pursuant to this Debenture and/or the First Ranking Debenture and other than as permitted under the Finance Documents) and that no overriding interest arises under the Land Registration Acts 1925-1988;

(d) Forfeiture notices

immediately give notice to the Agent if it receives any notice under section 146 of the Act or any proceedings are commenced against it for the forfeiture of any lease comprised in its Property;

(e) Disposals and consents

(save as permitted pursuant to the terms of the Note Purchase Agreement) not:

(f) Creation of other interests

(save as permitted under the terms of the Note Purchase Agreement) not create or permit to arise or subsist any licence, interest or right to occupy in favour of, or share possession of any of its Property with, any third party and not exercise the powers of leasing and accepting surrenders of leases contained in sections 99 and 100 of the Act (whether in respect of any lease under which it holds its Property or any lease superior thereto or derivative therefrom);

(g) Property acquisitions

notify the Agent in writing forthwith upon the acquisition by it from time to time of any freehold or leasehold property and, without prejudice to the provisions of Clause 9.1, on demand made to it by the Agent and at the cost of the Chargor, execute and deliver to the Agent a legal mortgage (the terms of which shall be no more onerous that the terms contained in this Debenture) in favour of the Agent of any freehold and leasehold properties which become vested in it after the date of this Debenture and all fixtures thereon to secure the payment and discharge of the Secured Obligations in such form as the Agent may require and, in the case of any leasehold property where the consent of any landlord needs to be obtained in order for the Chargor to execute any such legal mortgage, exercise all reasonable endeavours to obtain such consent and comply with its obligations under this Clause 4.1(g) forthwith upon such consent being obtained;

(h) H.M. Land Registry

in respect of any freehold or leasehold property which is now owned or hereafter acquired by the Chargor the title to which is registered at H.M. Land Registry or the title to which is required to be so registered, give H.M. Land Registry written notice of this Debenture in accordance with Clause 19 and procure that notice of this Debenture is duly noted in the register to each such title;

(i) Planning Acts and Regulations

comply in all material respects with and refrain from making any application under the Planning Acts and comply without delay with all orders, regulations, notices and directives issued or made by any competent authority, body or person (whether or not having the force of law) which relate in any way to its Property or its use and enjoyment;

(j) Statutory charges

comply in all material respects without delay with and pay all charges imposed by all statutes, statutory instruments, by-laws and other enactments relating to its Property and not do or suffer to be done any act or thing nor make any omission whereby its Property may become subject to any statutory charge which is or may be or become binding upon the Agent or any person deriving title under or through the Agent and, in particular, will not enter into any onerous or restrictive obligations affecting its Property including, without limitation, planning agreements or obligations under the Planning Acts;

(k) Outgoings

punctually pay and indemnify the Agent and (as a separate covenant for the benefit of the relevant Receiver) any Receiver, against all rents, rates, taxes, duties, assessments and other outgoings (including any which shall be wholly novel) from time to time payable in respect of any of its Collateral (including any of its Property by its owner or occupier, as the case may be);

(l) Compensation monies

hold on trust (and the Chargor hereby declares itself as trustee accordingly) the amount of any statutory or other compensation (including the proceeds of any defective title, restrictive covenant or other indemnity policy or covenant relating to its Property) arising for its benefit for interference with the use and/or enjoyment of its Property or the curtailment of any easement, right or benefit relating thereto and all other compensation monies from time to time received by it in respect of its Property and (without prejudice to any rights, debts, claims and/or obligations having priority to the obligations imposed by this Debenture) to pay the same to the Agent for the benefit of the Beneficiaries in or towards payment and discharge of the Secured Obligations in accordance with the terms of or as contemplated by the Finance Documents;

(m) Orders

within fourteen days after the receipt by the Chargor of any order, notice, direction, designation, resolution or proposal served or given by any public, local or other authority with respect to its Property or the area in which it is situated, give written notice thereof to the Agent and (within two days after demand) produce the same or a copy thereof to the Agent and, where appropriate, inform it of the steps taken or proposed to be taken to comply with any of the same and, at the request of the Agent (but at the cost of the Chargor), make or join with the Agent in making such representations or objections against or in respect of any matter contained therein as the Agent shall deem expedient;

(n) Equipment not to become a fixture

not knowingly permit any Equipment to become a fixture to real property or an accession to other personal property, unless the Agent has a valid, perfected and first priority mortgage (whether equitable or legal) in such Property;

(o) Identifying Marks

not, without the Agent’s prior written consent, alter or remove any identifying symbol or number on the Equipment;

(p) Investigation of title

grant the Agent or its representatives on request all such facilities within its power to enable the Agent or such representatives to carry out investigations of title to the Property and enquiries into matters in connection therewith, such investigations and enquiries to be at the expense of the Chargor; and

(q) Inspection

permit the Agent and its duly authorised representatives at all reasonable times (but in accordance with the provisions contained in any lease of the Chargor’s Property) during business hours and on not less than 24 hours written notice to enter into and upon its Property to view the state and condition thereof and of any Collateral thereon (and the Chargor will remedy any material defect or want of repair forthwith after service by the Agent of notice of the defect or want of repair). Where any Collateral is located in or on the property of a third party, the Chargor shall use its best efforts to enable the Agent to legally enter into and upon such property to exercise these rights of inspection. Immediately upon request by the Agent, deliver to the Agent any and all evidence of ownership of any of the Equipment including, without limitation, certificates of title and applications of title.

4.3 Other Covenants

The Chargor covenants with the Agent for the benefit of the Beneficiaries that it will:

(a) Intellectual Property and Licences

(b) Deeds

save where the Agent otherwise permits and upon written request from the Agent, deposit with the Agent (or as it shall direct) and permit the Agent to hold and retain all deeds and documents relating to or constituting any of the Collateral and hold on trust for the Agent for the benefit of the Beneficiaries any such deeds and documents not for the time being so deposited (and the Chargor hereby declares itself as trustee accordingly);

(c) Registrations

make all such filings and registrations and take all such other steps as may be reasonably necessary in connection with the creation, perfection or protection of the Security and pay all application, registration, renewal and other fees necessary for effecting, protecting, maintaining or renewing registrations in respect of any of the Collateral;

(d) Value of the security

not do or cause or knowingly permit to be done anything which may in any way materially depreciate, jeopardise or otherwise prejudice the value of the Security; and

(e) Dealings with the Collateral

save as permitted in the Finance Documents, not amend, vary, supplement, replace, release, novate, waive, surrender, determine, discharge, rescind or avoid any of the Collateral nor compound, grant any time or other indulgence or otherwise deal with any of the Collateral nor purport to do so (save, in the case of its assets charged by this Debenture by way of floating charge only, in the ordinary course of its operations).

4.4 Information Covenants

(a) General

The Agent may at any time seek from any person having a professional or trading relationship with the Chargor such information about the Chargor and its affairs as the Agent may think fit. The Chargor authorises and requests any such person to provide any such information to the Agent and agree to provide such further authority for this purpose as the Agent may reasonably require from time to time.

(b) Investigations

So long as an Event of Default has occurred and is continuing, the Chargor authorises the Agent to communicate directly with its independent, certified or chartered public accountants and authorises and requests those accountants and advisors to disclose and make available to the Agent any and all financial statements, and other supporting financial documents, schedules and information relating to the Chargor (including copies of any issued management letters) with respect to the business financial affairs and other conditions of the Chargor.

(c) Other Reporting Obligations

Subject always to Clause 8, the Chargor shall promptly inform the Agent of any material additions to or deletions from the Collateral and shall agree to (i) any consequential amendments to any relevant Schedules with the Agent and (ii) any replacement of such Collateral as the Agent may reasonably require. If (i) the Chargor becomes aware of any action, event or circumstance which would adversely affect the value, saleability or use of any Collateral or (ii) the Chargor becomes aware of any action or proceeding by a creditor, supplier or other person to seize or repossesses any of the Collateral, then in each case it shall promptly notify the Agent in writing and provide details of the same, and at the cost of the Chargor, it shall take such action as the Agent may reasonably require regarding such action, event, circumstance or proceeding.

5. COLLECTION OF RECEIVABLES AND RELATED MATTERS

The Chargor covenants with the Agent for the benefit of the Beneficiaries that it will:

(a) Collection

collect (as agent of the Agent), get in and realise its Receivables in the ordinary course of its business on behalf of the Agent, pay the proceeds into a Receivables Account forthwith on receipt (and pending that payment hold these proceeds on trust for the Agent) and not release, exchange, compound, set off, grant time or indulgence or subordinate its rights in respect of any of its Receivables to the rights of any other person in relation to debts owed to such person or otherwise deal with its Receivables in favour of any person (nor, in each such case, purport to do so) save in the ordinary course of its business and, in any event, not sell, assign, factor, discount or otherwise create or permit to subsist any Lien over its Receivables in favour of any person, nor purport to do so;

(b) Perfection of Assignment of Receivables

at any time after the occurrence and during the continuation of any Event of Default and at any other time when any of the circumstances set out in Clause 9.2(a) sub-paragraphs (ii) to (iv) (inclusive) applies and it is requested to do so by the Agent and without prejudice to the generality of Clause 9.1, take such steps as the Agent may require to perfect the assignment of its Receivables and each Receivables Account assigned pursuant to Clause 3.3 including, without prejudice to the generality of the foregoing and without prejudice to the Agent’s right to do so, giving notice of any such assignment to any of the persons (as the Agent shall specify) from whom such Receivables are due, owing or incurred by delivery to each such person of a Notice of Assignment duly executed by the Chargor and procuring that each such person delivers to the Agent (if the Agent so requires) a written acknowledgement substantially in the form of the acknowledgement and agreement attached to the Notice of Assignment;

(c) Account Notice

within 21 days after execution of this Debenture in respect of any Receivables Account listed in Schedule 3 and forthwith upon opening any new Receivables Account, deliver an Account Notice duly executed by it to the entity with which the relevant account is maintained and use its best endeavours to procure that such entity delivers to the Agent a written acknowledgement substantially in the form of the acknowledgement and agreement attached to the Account Notice; and

(d) Sales of Inventory for Cash

If sales of Inventory are made or services are rendered, the Chargor shall immediately pay into a Receivables Account denominated in the currency of such Receivables the identical cheques, cash or other forms of payment or remittance which it receives.

6. INSURANCE

Within 21 days after execution of this Debenture, the Chargor undertakes to give a Notice of Assignment to its insurers that it has assigned its rights under the Policies to the Agent under this Debenture and it will use all reasonable endeavours to procure that each insurer served with any such Notice of Assignment countersigns and returns the notice to the Agent within 14 days of the execution of this Debenture.

7. INVESTMENTS

7.1 Covenants

The Chargor covenants with the Agent for the benefit of the Beneficiaries that it will, without prejudice to the generality of the provisions of Clause 13:

(a) Deposit of documents of title

deposit with the Agent (or as it shall direct) immediately upon execution of this Debenture (in relation to any Securities listed in Schedule 6), and immediately upon receipt following its acquisition of any Investments and at any other time upon the Agent’s request, all stock and share certificates or other documents evidencing an entitlement to such Investments together with stock transfer forms duly stamped and executed in blank and left undated in respect of all such Securities on the basis that the Agent shall be able to hold such documents of title and stock transfer forms until the Secured Obligations have been irrevocably and unconditionally discharged in full and shall be entitled, at any such time that it is permitted to do so in accordance with the terms of this Debenture to complete under its power of attorney given by Clause 13 below the stock transfer forms on behalf of the Chargor in favour of itself or such other person as it shall select, provided that, in the event of any such transfer being effected, neither the Agent nor any of its nominees shall be liable for any loss occasioned by any exercise or non-exercise of rights attached to such Investments or by any failure to report to the Chargor any notice or other communication received in respect of such Investments;

(b) Conversion

immediately on conversion of any Securities from certificated to uncertificated form, and on the creation or conversion of any other securities which are for the time being comprised in the Related Rights in or into uncertificated form, comply with such written instructions or directions as the Agent may give in order to protect, perfect or preserve the Security;

(c) No restrictions on transfer

ensure that its Investments are at all times free from any restriction on transfer by the Agent or its nominee to perfect or enforce the Security and procure that the board of directors of any company in which any of its Investments are held approves any transfer of any of its Investments desired to be made by the Agent or its nominee in the exercise of the rights, powers and remedies conferred upon it by this Debenture or by law;

(d) Related Rights

unless it is permitted to retain such Related Rights in accordance with the terms of this Debenture, upon the accrual, offer or issue of any Related Rights deriving from its Investments, deliver to the Agent (or procure the delivery to the Agent of) all such Related Rights and the certificates and documents of title to or representing the same together with each of the documents required to be duly executed, completed and delivered under and in accordance with the terms of this Clause 7;

(e) Calls

duly and promptly pay or procure the payment of all calls, instalments and other payments when due in respect of any of its Investments, provided that if the Chargor defaults in making any such payment, the Agent may (but shall not be obliged to) pay such amounts on behalf of the Chargor and shall be reimbursed by the Chargor immediately on demand;

(f) Communications

notify the Agent of the contents of any communication or document received by it in relation to any of its Investments; and

(g) Variation of rights

not, without the prior written consent of the Agent, by the exercise of any voting rights or otherwise, permit or agree to any proposed compromise, capital reorganisation, conversion, exchange or repayment offer affecting or in respect of any of its Investments or to any variation of the rights attaching to or conferred by any of its Investments or to any conversion of any of its Investments into an uncertificated security.

7.2 Voting Rights and Dividend Entitlement

7.3 Default Powers

At any time while the Security is enforceable in accordance with the terms of this Debenture and without any further consent or authority on the part of the Chargor, the Agent or its nominee may exercise (or refrain from exercising) at its discretion in the name of the Chargor (or the registered holder thereof) in respect of any of the Securities any voting rights and any powers or rights which may be exercised by the person or persons in whose name or names the Securities are registered or who is the holder or bearer of them.

7.4 Continuing liabilities

Subject to due notification thereof by the Agent where the Securities are registered in the Agent’s name (or that of its nominee) in accordance with the terms of this Debenture, it is expressly agreed that the Chargor shall remain liable to observe and perform all of the conditions and obligations attaching to any of the Securities including the payment of any sum due in respect of the Securities.

7.5 No obligation

The Agent shall not be required to perform or fulfil any obligation of the Chargor in respect of the Investments or to make any payment, or to make any enquiry as to the nature or sufficiency of any payment received by it or the Chargor, or to present or file any claim or take any other action to collect or enforce the payment of any amount to which it may have been or to which it may be entitled under this Debenture at any time or times.

7.6 Retention of Documents

The Agent may retain any document delivered to it under this Debenture until the Security is released in accordance with the terms of this Debenture and, if for any reason it ceases to hold any such document before that time, it may by notice to the Chargor require that the relevant document be redelivered to it and the Chargor shall promptly comply (or procure compliance) with that notice.

8. NEGATIVE PLEDGE

The Chargor undertakes in favour of the Agent for the benefit of the Beneficiaries that it will not, save as permitted pursuant to the terms of the Note Purchase Agreement or any other Finance Document:

(a) Liens

create or permit to subsist any Lien over all or any part of the Collateral (other than the security interests created pursuant to the First Ranking Debenture and the Security) other than in the ordinary course of business or any interest therein ranking in priority to, pari passu with or subsequent to the Security, nor enter into any agreement to do any of the same;

(b) Disposals

sell, transfer, assign, lease out, lend or otherwise dispose of (whether outright or otherwise), or grant any rights (whether of pre-emption or otherwise) over, all or any part of the Collateral or any interest therein, nor enter into any agreement to do any of the same (save in the ordinary course of its operations on arm’s length terms in the case of assets of the Chargor charged by this Debenture by way of floating charge only); or

(c) Material Prejudice

do or cause or permit to be done anything which may materially depreciate, jeopardise or otherwise materially prejudice the market value or collateral value of any Collateral or the rights of the Agent under this Debenture.

9. FURTHER ASSURANCE AND PERFECTION OF SECURITY

9.1 Further Assurance

9.2 Conversion of Floating Charge

9.3 Security in Jeopardy

If at any time it shall appear to the Agent that any of the Collateral is in danger of seizure, distress, attachment, execution, diligence or other legal process, or that the Security shall for any other reason be in jeopardy, the Agent shall be entitled without notice to the Chargor to take possession of and hold the same or to appoint a Receiver of such Collateral. The provisions of Clause 10 shall govern the appointment, removal and powers of a Receiver appointed under this Clause 9.3 as if it were a Receiver appointed under Clause 10 and the Chargor shall, at its own expense, promptly execute such deeds and other agreements and otherwise take whatever action the Agent may require in order to enable the Agent to exercise its rights contained in this Clause 9.3.

10. RECEIVER

10.1 Appointment of Receiver

If:

(a) the Chargor requests that a Receiver be appointed; or

then at any time or times thereafter the Security shall be enforceable and (without prejudice to any of its other rights under this Debenture) the Agent may by writing appoint any person or persons to be a Receiver of any of the Collateral and of the rights of the Agent contained in this Debenture in relation thereto. Section 109(1) of the Act shall not apply to this Debenture.

10.2 Joint Receivers

Where two or more persons are appointed to be a Receiver, the Agent may in the appointment declare whether any act required or authorised to be done by a Receiver is to be done by any one or more of them for the time being holding office and, subject thereto, any such persons may act jointly and/or severally.

10.3 General Powers of Receiver

Any Receiver of any of the Collateral shall (subject to any limitations or restrictions which the Agent may in its absolute and unfettered discretion incorporate in the deed or other instrument appointing him but notwithstanding the liquidation, winding-up, or dissolution at any time of the Chargor and whether or not any such Receiver shall be an administrative receiver) have:

10.4 Specific Powers of Receiver

Any Receiver shall, in relation to the Chargor and the Collateral in respect of which it is appointed, have the power to:

10.5 Receiver as Agent

Any Receiver of any of the Collateral shall, so far as the law allows, be deemed to be the agent of the Chargor for all purposes and the Chargor shall be solely responsible for their acts, defaults, contracts, engagements, omissions, losses, liabilities, misconduct and remuneration and the Agent shall not be under any liability whatsoever in such regard.

10.6 Remuneration

The remuneration of the Receiver shall be such sum or rate payable in such manner as may be agreed between him and the Agent at or at any time after his appointment without being limited to the maximum rate specified in section 109(6) of the Act.

10.7 Removal

The Agent may from time to time remove any Receiver appointed by it and, in the case of an administrative receiver, may at any time and from time to time apply to the court for removal of any administrative receiver appointed by it and may, whenever it may deem it expedient, appoint or as the case may be apply to the court for the appointment of another qualified person as a new Receiver in place of any Receiver whose appointment may for any reason have terminated.

10.8 Application of Proceeds

Any Receiver shall (so far as the law allows) apply all monies received by him in the following order:

10.9 Small Company Moratorium

Notwithstanding any other provision of this Debenture, the obtaining of a moratorium under section 1A of the Insolvency Act 1986, or anything done with a view to obtaining a moratorium (including any preliminary decision or investigation), shall not be an event causing the floating charge created by this Debenture to crystallise or causing restrictions which would not otherwise apply to be imposed on the disposal of property by the Chargor or a ground for the appointment of a Receiver.

10.10 Administrator

For the avoidance of doubt, the foregoing provisions of this clause are without prejudice to the Agent’s rights to appoint an administrator pursuant to paragraph 14 of Schedule B1 of the Insolvency Act 1986 with all the powers conferred on administrators under the Insolvency Act 1986.

11. VARIATION AND EXTENSION OF STATUTORY POWERS

11.1 Statutory Powers Generally

The powers conferred on mortgagees or receivers (including administrative receivers) by the Act and the Insolvency Act 1986 shall apply to this Debenture except insofar as they are expressly or impliedly excluded and where there is any ambiguity or conflict between the powers contained in the Act and/or the Insolvency Act 1986 and those contained in this Debenture the terms of this Debenture shall (so far as the law allows) prevail.

11.2 Agent’s Powers

The restrictions contained in sections 93 and 103 of the Act shall not apply to the Security and the power of sale and other powers contained in section 101 of the Act and all other enforcement powers conferred in this Debenture shall be immediately exercisable at any time after the occurrence of an Event of Default and shall be varied and extended so that the Agent shall at any such time be entitled (without prejudice to any other rights or powers of a mortgagee) to exercise any of the powers conferred upon a Receiver by Clause 10 and shall have the benefit of all the provisions of Clause 10.

11.3 Mortgagee in Possession

It is agreed and declared that no exercise (whether by the Agent or any Receiver) of any of the powers contained in this Debenture shall render the Agent or any Receiver liable as mortgagee in possession in respect of any of the Collateral or liable for any loss or damage (including, without limitation, loss upon realisation of any of the Collateral) save where caused by gross negligence or wilful default on the part of the Agent or any Receiver.

11.4 Protection for Third Parties

No person (including a purchaser) dealing with the Agent, any Receiver or any of their respective agents will be concerned to enquire:

(a) whether the Secured Obligations have become payable; or

(c) whether any money remains due under the Finance Documents; or

(d) how any money paid to the Agent or any Receiver is to be applied.

In the absence of bad faith on the part of such purchaser or other person, such dealings shall be deemed, so far as regards the safety and protection of such purchaser or other person, to be within the powers conferred by this Debenture and to be valid accordingly. The remedy of the Chargor in respect of any impropriety or irregularity in the exercise of such power shall be in damages only.

11.5 Delegation

The Agent or any Receiver may at any time on giving prior written notice to the Chargor delegate by power of attorney or in any other manner to any person or persons any of the powers (including the power of attorney contained in Clause 13.1), authorities and discretions which are for the time being exercisable by the Agent or any Receiver under this Debenture in relation to the Collateral. Any such delegation may be made upon such terms (including power to sub-delegate) and subject to such regulations as the Agent or Receiver may think fit. Neither the Agent nor any Receiver shall be in any way liable or responsible to the Chargor for any loss or damage arising from any act, default, omission or misconduct on the part of any such delegate or sub-delegate.

11.6 Suspense Accounts

The Agent and any Receiver may at any time and from time to time place and keep (for such time as it or he shall consider prudent) any monies received, recovered or realised from the Chargor or in relation to any Collateral pursuant to this Debenture in a separate suspense account (to the credit of either the Chargor or the Agent as the Agent shall think fit) without any intermediate obligation on its part to apply the same or any part thereof in or towards the discharge of the Secured Obligations provided that if such monies are at any time sufficient to discharge the Secured Obligations in full, they shall be promptly so applied.

11.7 Agent’s Power to Remedy Breaches

If at any time the Chargor fails to perform any of the covenants contained in this Debenture it shall be lawful for the Agent, but the Agent shall have no obligation, to take such action on behalf of the Chargor (including, without limitation, the payment of money) as may in the Agent’s reasonable opinion be required to ensure that such covenants are performed. Any losses, costs, charges and expenses incurred by the Agent in taking such action shall be reimbursed by the Chargor immediately on written demand.

12. CONTINUATION AND PRESERVATION OF SECURITY

12.1 Subsequent Liens

If the Agent or any other Beneficiary receives, or is deemed to be affected by, notice, whether actual or constructive, of any Lien (other than a Lien which is permitted under the terms of the Finance Documents) affecting the Collateral and/or the proceeds of sale thereof, the Agent or such other Beneficiary may open a new account or accounts for the Chargor in its books. If the Agent or such other Beneficiary does not open a new account, it shall nevertheless be treated as if it had done so at the time when it received or was deemed to have received notice (unless it gives express notice to the contrary to the Chargor). As from that time all payments made to the Agent or such other Beneficiary will (in the absence of any express appropriation to the contrary) be credited or be treated as having been credited to the new account and will not operate to reduce the Secured Obligations.

12.2 Waiver of defences

The Chargor shall be deemed to be a principal debtor and the sole, original and independent obligor for the Secured Obligations and the Collateral shall be deemed to be a principal security for the Secured Obligations. The liability of the Chargor under this Debenture shall not be discharged, impaired or otherwise affected by any circumstance, act, omission, matter or thing which but for this provision might operate to reduce, release, prejudice or otherwise exonerate the Chargor from its obligations under the Finance Documents in whole or in part, including without limitation and whether or not known to any Obligor, the Agent or any other person:

so that the Chargor’s obligations under this Debenture remain in full force and effect and that this Debenture shall be construed accordingly as if there were no such circumstance, act, omission, matter or thing.

12.3 Immediate recourse

The Chargor waives any right it may have of first requiring the Agent (or any trustee or agent on its behalf) to proceed against or enforce any other rights or security in respect of the Secured Obligations or claim payment from any person before enforcing the Security. This waiver applies irrespective of any law or provision of the Finance Documents to the contrary.

12.4 Non-competition

Subject as provided below, until the Agent is satisfied that all of the Secured Obligations have been unconditionally and irrevocably paid and discharged in full in cash, the Chargor shall not, by virtue of any payment made, security realised or moneys received or recovered under any of the Finance Documents for or on account of the liability of any Obligor:

The Chargor shall hold in trust for and forthwith pay or transfer to the Agent for the benefit of the Beneficiaries any payment or distribution or benefit of security received by it contrary to the above. If the Chargor exercises any right of set-off contrary to the above it will forthwith pay an amount equal to the amount set off to the Agent for the benefit of the Beneficiaries. Notwithstanding the foregoing, following any enforcement of the Collateral by the Agent under this Debenture, the Chargor will (at its own cost) promptly take such steps or actions as are referred to above as the Agent may from time to time stipulate.

12.5 Security held by the Chargor

The Chargor warrants that it has not taken, and agrees that it will not take, from any other Obligor or any person party to any related security any Lien, guarantee, indemnity, bond or other assurance in respect of or in connection with its obligations under this Debenture. If the Chargor takes any such Lien, guarantee, indemnity, bond or other assurance in contravention of this Clause, it shall hold it on trust for the Beneficiaries until such time as all of the Secured Obligations have been satisfied in full (and the Beneficiaries are not under any further obligation, actual or contingent, to any Obligor) and shall on request promptly deposit the same with and/or charge the same to the Beneficiaries in such manner as the Agent may require as security for the due and punctual payment, performance and discharge by the Chargor of the Secured Obligations.

12.6 Continuing Security

The Security constituted by this Debenture shall be a continuing security and will extend to the ultimate balance of the Secured Obligations notwithstanding any interim or intermediate payment, discharge or settlement of account or other matter whatsoever and is in addition to and shall not merge with or otherwise prejudice or affect (or be prejudiced or affected by) the security constituted by any Lien, guarantee or other assurance now or hereafter held by the Agent or any right or remedy of the Agent in respect of the same and shall not be in any way prejudiced or affected by the invalidity thereof, or by the Agent now or hereafter dealing with, exchanging, releasing, modifying or abstaining from perfecting or enforcing any of the same, or any rights which it may now or hereafter have, or giving time for payment or indulgence or compounding with any other person liable.

13. POWER OF ATTORNEY

13.1 Appointment

The Chargor, by way of security, hereby irrevocably appoints the Agent and the persons deriving title under it and separately any Receiver jointly or severally to be its attorney or attorneys for them (with full power of substitution and delegation) and in the name and on behalf and as its act and deed to sign, seal, execute, deliver, perfect and do all deeds, instruments, acts and things which may be required:

The provisions of this Clause 13.1 shall take effect as and by way of variation to the provisions of sections 109(6) and 109(8) of the Act which provisions as so varied and extended shall be deemed incorporated in this Debenture as if they related to a receiver of the Collateral and not merely a receiver of the income thereof.

13.2 Ratification

The Chargor covenants with the Agent and separately with any Receiver that, on request, it will ratify and confirm all security agreements, documents and acts and all transactions entered into by the Agent or any Receiver (or by the Chargor at the instance of the Agent or any Receiver) in the exercise or purported exercise of its or his powers set out in this Debenture and the Chargor irrevocably acknowledges and agrees that the power of attorney contained in Clause 13.1 is given to secure the proprietary interest of, and the performance of obligations owed to, the respective donees within the meaning of the Powers of Attorney Act 1971.

14. INDEMNITIES

14.1 General

The Chargor hereby unconditionally and irrevocably agrees as primary obligor and not merely as surety to indemnify and hold harmless the Agent (and its nominees), each other Beneficiary from time to time and any Receiver on demand against all losses, actions, claims, expenses, demands or liabilities whether in contract, tort or otherwise now or hereafter incurred by any of them or by any of their respective managers, agents, officers or employees occasioned by any breach by the Chargor of any of its covenants or other obligations under this Debenture or otherwise arising out of or in connection with the Collateral or the Security.

14.2 Taxes

The Chargor agrees to indemnify the Agent, each other Beneficiary and any Receiver on demand against all present or future stamp or other taxes or duties and any penalties or interest with respect thereto which may be imposed by any competent authority in connection with the execution or enforcement of this Debenture or in consequence of any payment made pursuant hereto being impeached or declared void for any reason whatsoever.

15. WAIVERS AND REMEDIES

15.1 Waivers

No failure or delay by any Beneficiary (or the Agent on their behalf) in exercising any right or remedy shall operate as a waiver thereof, nor shall any single or any partial exercise or waiver of any right or remedy preclude its further exercise or the exercise of any other right or remedy as though no waiver had been made and no relaxation or indulgence granted. The rights and remedies provided in this Debenture are cumulative and not exclusive of any rights or remedies provided by law.

15.2 Severability

If any provision of this Debenture shall be prohibited, invalid or unenforceable under applicable law, it shall be ineffective only to such extent and in the relevant jurisdiction, without invalidating the remainder of this Debenture.

16. REINSTATEMENT AND RELEASE

16.1 Reinstatement

Any settlement or discharge under this Debenture between the Chargor and the Agent or the Beneficiaries (or any of them) shall be conditional upon no security or payment to the Agent or the Beneficiaries (or any of them) by any Obligor or the Chargor or any other person on behalf of any Obligor or, as the case may be, the Chargor being avoided or set aside or ordered to be refunded or reduced by or pursuant to any applicable law or regulation and, if such condition is not satisfied, the Agent and/or the Beneficiaries shall be entitled to recover from the Chargor on demand the value of any such security or the amount of any such payment as if such settlement or discharge had not occurred.

16.2 Release

Once all the Secured Obligations have been paid in full in cash and neither the Agent nor any other Beneficiary has any contingent liability to advance further monies to, or incur liability on behalf of, the Chargor or any other Obligor, the Agent and each other Beneficiary shall, at the request and cost of the Chargor, take any action which may be necessary to release, discharge and reassign the Collateral from the Security.

17. DECLARATION OF TRUST

The Agent hereby declares that it holds the security constituted by this Debenture as a trustee for and on behalf of the Beneficiaries on the basis of the duties, obligations and responsibilities set out in the Collateral Agency Agreement and shall have no implied duties, obligations or responsibilities (including without limitation but only to the extent permitted by law any duties, obligations or responsibilities provided for pursuant to the terms of the Trustee Act 2000 or otherwise). The proceeds of any enforcement of the security constituted by this Debenture shall be applied in accordance with the provisions of the Note Purchase Agreement and the Collateral Agency Agreement.

18. CURRENCY

Any amount received or recovered by the Agent for the benefit of the Beneficiaries in respect of any sum expressed to be due to it from the Chargor under this Debenture in a currency other than the currency (the “contractual currency”) in which such sum is so expressed to be due (whether as a result of, or of the enforcement of, any judgment or order of a court or tribunal of any jurisdiction, the winding-up of the Chargor or otherwise) shall only constitute a discharge to the Chargor to the extent of the amount of the contractual currency that the Agent is able, in accordance with its usual practice, to purchase with the amount of the currency so received or recovered on the date of receipt or recovery (or, if later, the first date on which such purchase is practicable). If the amount of the contractual currency so purchased is less than the amount of the contractual currency so expressed to be due the Chargor shall fully indemnify the Agent against any loss sustained by it as a result, including the cost of making any such purchase.

19. LAND REGISTRY

Wherever any application shall be made to note this Debenture in the charges register relating to the title to any registered land of the Chargor which shall be the subject of any of the charges constituted by this Debenture the parties hereto apply and agree to apply to H.M. Land Registry for the following entry to be made on the register of the Chargor’s title relating to any such registered land:

“No disposition or other dealing by the proprietor of the land is to be registered or noted on the register without the consent of the proprietor for the time being of the charge referred to in entry no. [?] of the Charges Register”.

20. NOTICES

20.1 General

Any demand, notice or other communication or document to be made on or delivered to the Chargor under this Debenture or in respect of the Secured Obligations shall be made or delivered by fax or otherwise in writing and shall be treated as having been served if served in accordance with Clause 20.2. Each demand, notice, communication or other document to be made on or delivered to any party to this Debenture may (unless that party has by 10 working days’ written notice to the other party or parties specified another address or fax number) be made or delivered to that other person at the address or fax number set out under its name at the end of this Debenture. For the purpose of this Clause 20 the term “working day” shall mean a day (other than a Saturday or a Sunday or a bank or public holiday) upon which the recipient of any demand, notice, communication or other document is normally open for business in the country of its address for service referred to in this Clause 20.1 and references to any time of day shall be construed as references to the time of day in such country.

20.2 Mode of Service

Service of any demand, notice, communication or other document to be made or delivered under this Debenture may be made:

(a) by leaving it at the relevant address for service referred to in Clause 20.1;

20.3 Deemed Service

Any demand, notice, communication or other document from the Chargor shall be irrevocable and shall not be effective until its actual receipt by the Agent. Any other demand, notice, communication or other document shall be served or treated as served at the following times:

20.4 Proof of Service

In proving service of a demand, notice, communication or other document served:

21. SET OFF

22. CONTRACTS (RIGHTS OF THIRD PARTIES) ACT 1999

23. ASSIGNMENTS AND TRANSFERS

24. GOVERNING LAW

This Debenture and the rights and obligations of the parties hereto are governed by, and shall be construed in accordance with, English law.

IN WITNESS whereof the Chargor has duly executed this Debenture as a deed and intends to deliver and hereby delivers the same on the date first above written and, before such delivery, this Debenture has been duly signed on behalf of the Agent, in the manner appearing below.

3

SCHEDULE 1

Certain Equipment

All of the Equipment set out in the DML Asset Acquisition Invoice (which is deemed incorporated herein by reference)

4

SCHEDULE 2

Intellectual Property

Part I
Patent and Patent Applications

SEE ATTACHED SCHEDULES

Part II
Trade Marks Applications and Registrations

Part III
Registered Designs and Applications Therefor

NONE

Part IV
Copyright Works and Unregistered Designs

NONE

Part V
Other Intellectual Property

NONE

Part VI
Intellectual Property Licences

NONE

5

SCHEDULE 3

Receivables Account(s)

NONE

6

SCHEDULE 4

Details of Policies

NONE

7

SCHEDULE 5

Assignments

Part A1

Form of Notice of Assignment of Receivables

To: [?] [Debtor/Third Party]

[?] [Address]

[?] [Date]

Dear Sirs

We hereby give you notice that we have assigned by way of security pursuant to the terms of a debenture dated [?] (such debenture, as the same may from time to time be amended, varied, supplemented, novated or replaced being referred to as the “Debenture”) between ourselves and BCC Acquisition II LLC (or any successor or replacement thereof) as Agent for and on behalf of certain secured creditors (the “Agent”) all our rights, title and interest in and to the [?].

We irrevocably and unconditionally instruct and authorize you (notwithstanding any previous instructions which we may have given you to the contrary and without requiring you to make any reference to or seek any further authority from us or to make any enquiry as to the justification for or validity of any notice, statement, requirement or direction) as follows:

You should note that, by virtue of the assignment by way of security comprised in the Debenture to which reference is made above:

The terms of and the instructions and authorisations contained in this letter shall remain in full force and effect until the Agent gives you notice to the contrary.

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

Please acknowledge receipt of this letter and your acceptance of its terms and the instructions and authorisations contained in it by signing the attached form of acknowledgement and agreement and returning it to BCC Acquisition II LLC (marked for the attention of [?] [Contact]) at [?] [Address].

Yours faithfully

For and on behalf of
TGC RESEARCH LIMITED

8

Part A2

Form of Acknowledgement and Agreement

Dear Sirs

We acknowledge receipt of a notice dated [?] and addressed to us by TGC Research Limited (the “Assignor”) regarding the [debt/agreement] referred to in such notice and we hereby acknowledge our acceptance of the terms of and the instructions and authorisations contained in that notice.

We acknowledge and confirm that:

[FOR DEBTS] [We further confirm that we shall not make or exercise any claims or demands, rights of combination, consolidation or set-off or any other equities which we may have in respect of such debt and we shall send you copies of all statements, orders and notices given by us relating to such debt.]

We undertake that, if we become aware at any time that any person or entity other than yourselves has or may have any rights, title or interest in or to, or has or may be making any claim or demand or taking any action in respect of, the [debt/agreement] we will immediately give written notice to you of the terms of such rights, title, interest, claim, demand or action.

   
For and on behalf of
[Debtor/Third Party]

9

Part B1

Form of Notice of Assignment of Insurances

Dear Sirs

Policy number [?]

We hereby give you notice that pursuant to the terms of a debenture (the “Debenture”) dated [?] and made between ourselves and BCC Acquisition II LLC in its capacity as Agent for and on behalf of certain secured creditors (the “Agent”) we have assigned by way of security all proceeds of the above policy (the “Policy”) to the Agent.

We irrevocably and unconditionally authorize you to disclose to the Agent such information relating to the Policy and the proceeds of any claim under it as the Agent may at any time request you to disclose and, after the occurrence of an Event of Default (as such term is defined in the Debenture) which is continuing, to:

(a) make all payments under or arising from the Policy to the Agent or to its order; and

Accordingly, we hereby request that, with effect from today’s date, the Agent be noted on the Policy as first loss payee following the occurrence of an Event of Default.

The terms of and the instructions and authorisations contained in this letter shall remain in full force and effect until the Agent gives you notice to the contrary.

Please acknowledge receipt of this letter by signing the attached form of acknowledgement and agreement and returning it to BCC Acquisition II LLC (marked for the attention of: [?] [Contact]) at [?] [Address].

Yours faithfully

for and on behalf of
TGC RESEARCH LIMITED

10

Part B2

Form of Acknowledgement

Attention: [?]

Dear Sirs

We acknowledge receipt of a notice dated [?] and addressed to us by TGC Research Limited (the “Assignor”) regarding policy number [?] (the “Policy”) and acknowledge the instructions and authorisations contained in that notice.

We acknowledge and confirm that:

(5) we shall advise you at least 30 days before any cancellation of the Policy; and

Yours faithfully

for and on behalf of
[Insurer]

11

Form of Endorsement

Notwithstanding any other provision of this policy, the following endorsement will take effect immediately:

12

SCHEDULE 6

Securities

NONE

13

SCHEDULE 7

Part 1

Form of Account Notice

Dear Sirs

We refer to the account in our name and maintained with you, designated “[?] Account” under account No. [?] (the “Account”).

We hereby give you notice that we have assigned by way of security pursuant to a debenture dated [?] (such debenture, as the same may from time to time be amended, varied, supplemented, novated or replaced being referred to as the “Debenture”) between ourselves and BCC Acquisition II LLC (or any successor or replacement thereof) as Agent for and on behalf of certain secured creditors (the “Agent”) all our rights, title and interest in and to the Account and the monies from time to time standing to its credit.

We irrevocably and unconditionally instruct and authorize you (notwithstanding any previous instructions which we may have given you to the contrary and without requiring you to make any reference to or seek any further authority from us or to make any enquiry as to the justification for or validity of any notice, statement, requirement or direction) as follows:

The instructions and authorisations which are contained in this letter shall remain in full force and effect until the Agent gives you written notice revoking them.

In any circumstances where you are required under the terms of this letter to act on the instruction of the Agent, you shall act only on the instruction of [?] or [?].

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

Please acknowledge receipt of this letter and your acceptance of the instructions and authorisations contained in it by signing the attached form of acknowledgement and agreement and returning it to BCC Acquisition II LLC (marked for the attention of [?] [Contact]) at [?] [Address].

Yours faithfully

for and on behalf of
TGC RESEARCH LIMITED

14

Part 2

Form of Acknowledgement and Agreement

Dear Sirs

We acknowledge receipt of a notice dated [?] and addressed to us by TGC Research Limited (the “Assignor”) regarding the account mentioned in such notice (the “Account”) and we accept the instructions and authorisations contained in such notice.

We acknowledge and confirm that:

We undertake that, if we become aware at any time that any person or entity other than yourselves has or may have any rights, title or interest in or to, or has or may be making any claim or demand or taking any action against, the Account, we will immediately give written notice to you of the terms of such rights, title or interest, claim, demand or action.

We confirm that, until you give us notice in writing (including, for the avoidance of doubt, by way of facsimile transmission) that the Account and the monies from time to time standing to the credit thereof have been reassigned and released to the Assignor, we shall not permit any transfers or withdrawals to be made from the Account without your prior written authority.

Yours faithfully

for and on behalf of
[Third Party Bank]

15

SCHEDULE 8

Property

Part 1

Registered Land

NONE

Part 2

Unregistered Land

(Freehold or leasehold property in England and Wales title to which is not registered at H.M. Land Registry of which the Chargor is the owner)

The leasehold properties known comprised in the following title deeds or other documents of title:

NONE

Part 3

Other Immovable Property

NONE

16

SIGNATORIES

THE CHARGOR

EXECUTED as a DEED by
TGC RESEARCH LIMITED
acting by:

St. Paul
Minnesota 55113
United States of America

17

San Francisco, CA 94111
United States of America

Chicago, Illinois 6060
United States of America

18