(Multicurrency-Cross Border)

ISDAâ

International Swaps and Derivatives Association, Inc.

MASTER AGREEMENT

dated as of January 4, 2008

LEHMAN BROTHERS SPECIAL FINANCING INC. WELLS FARGO BANK, N.A., NOT IN ITS INDIVIDUAL CAPACITY BUT SOLELY AS TRUSTEE OF THE SUPPLEMENTAL INTEREST TRUST, FOR BNC MORTGAGE LOAN TRUST MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 2007-4

have entered and/or anticipate entering into one or more transactions (each a “Transaction”) that are or will be governed by this Master Agreement, which includes the schedule (the “Schedule”), and the documents and other confirming evidence (each a “Confirmation”) exchanged between the parties confirming those Transactions.

Accordingly, the parties agree as follows:¾

1.Interpretation

(a)Definitions. The terms defined in Section 14 and in the Schedule will have the meanings therein specified for the purpose of this Master Agreement.

(b)Inconsistency. In the event of any inconsistency between the provisions of the Schedule and the other provisions of this Master Agreement, the Schedule will prevail. In the event of any inconsistency between the provisions of any Confirmation and this Master Agreement (including the Schedule), such Confirmation will prevail for the purposes of the relevant Transaction.

(c)Single Agreement. All Transactions are entered into in reliance on the fact that this Master Agreement and all Confirmations form a single agreement between the parties (collectively referred to as this “Agreement”), and the parties would not otherwise enter into any Transactions.

2.Obligations

(a)General Conditions.

(i) Each party will make each payment or delivery specified in each Confirmation to be made by it, subject to the other provisions of this Agreement.

(ii) Payments under this Agreement will be made on the due date for value on that date in the place of the account specified in the relevant Confirmation or otherwise pursuant to this Agreement, in freely transferable fundsand in themannercustomaryfor payments in therequiredcurrency. Where settlement is by delivery (that is, other than by payment), such delivery will be made for receipt on the due date in the manner customary for the relevant obligation unless otherwise specified in the relevant Confirmation or elsewhere in this Agreement.

(iii) Each obligation of each party under Section 2(a)(i) is subject to (1) the condition precedent that no Event of Default or Potential Event of Default with respect to the other party has occurred and is continuing, (2) the condition precedent that no Early Termination Date in respect of the relevant Transaction has occurred or been effectively designated and (3) each other applicable condition precedent specified in this Agreement.

(iii)Each obligation of each party under Section 2(a)(i) is subject to (1) the condition precedent that no Event of Default or Potential Event of Default with respect to the other party has occurred and is continuing, (2) the condition precedent that no Early Termination Date in respect of the relevant Transaction has occurred or been effectively designated and (3) each other applicable condition precedent specified in this Agreement.

(b)Change of Account. Either party may change its account for receiving a payment or delivery by giving notice to the other party at least five Local Business Days prior to the scheduled date for the payment or delivery to which such change applies unless such other party gives timely notice of a reasonable objection to such change.

(c)Netting. If on any date amounts would otherwise be payable:—

(i)in the same currency; and

(ii)in respect of the same Transaction,

by each party to the other, then, on such date, each party’s obligation to make payment of any such amount will be automatically satisfied and discharged and, if the aggregate amount that would otherwise have been payable by one party exceeds the aggregate amount that would otherwise have been payable by the other party, replaced by an obligation upon the party by whom the larger aggregate amount would have been payable to pay to the other party the excess of the larger aggregate amount over the smaller aggregate amount.

The parties may elect in respect of two or more Transactions that a net amount will be determined in respect of all amounts payable on the same date in the same currency in respect of such Transactions, regardless of whether such amounts are payable in respect of the same Transaction. The election may be made in the Schedule or a Confirmation by specifying that subparagraph (ii) above will not apply to the Transactions identified as being subject to the election, together with the starting date (in which case subparagraph (ii) above will not, or will cease to, apply to such Transactions from such date). This election may be made separately for different groups of Transactions and will apply separately to each pairing of Offices through which the parties make and receive payments or deliveries.

(d)Deduction or Withholding for Tax.

(i)Gross-Up. All payments under this Agreement will be made without any deduction or withholding for or on account of any Tax unless such deduction or withholding is required by any applicable law, as modified by the practice of any relevant governmental revenue authority, then in effect. If a party is so required to deduct or withhold, then that party (“X”) will:—

(1)promptly notify the other party (“Y”) of such requirement;

(2)pay to the relevant authorities the full amount required to be deducted or withheld (including the full amount required to be deducted or withheld from any additional amount paid by X to Y under this Section 2(d)) promptly upon the earlier of determining that such deduction or withholding is required or receiving notice that such amount has been assessed against Y;

(3)promptly forward to Y an official receipt (or a certified copy), or other documentation reasonably acceptable to Y, evidencing such payment to such authorities; and

(4)if such Tax is an Indemnifiable Tax, pay to Y, in addition to the payment to which Y is otherwise entitled under this Agreement, such additional amount as is necessary to ensure that the net amount actually received by Y (free and clear of Indemnifiable Taxes, whether assessed against X or Y) will equal the full amount Y would have received had no such deduction or withholding been required. However, X will not be required to pay any additional amount to Y to the extent that it would not be required to be paid but for:—

(A)the failure by Y to comply with or perform any agreement contained in Section 4(a)(i), 4(a)(iii) or 4(d); or

(B)the failure of a representation made by Y pursuant to Section 3(f) to be accurate and true unless such failure would not have occurred but for (I) any action taken by a taxing authority, or brought in a court of competent jurisdiction, on or after the date on which a Transaction is entered into (regardless of whether such action is taken or brought with respect to a party to this Agreement) or (II) a Change in Tax Law.

(ii)Liability. If:—

(1)X is required by any applicable law, as modified by the practice of any relevant governmental revenue authority, to make any deduction or withholding in respect of which X would not be required to pay an additional amount to Y under Section 2(d)(i)(4);

(2)X does not so deduct or withhold; and

(3)a liability resulting from such Tax is assessed directly against X,

then, except to the extent Y has satisfied or then satisfies the liability resulting from such Tax, Y will promptly pay to X the amount of such liability (including any related liability for interest, but including any related liability for penalties only if Y has failed to comply with or perform any agreement contained in Section 4(a)(i), 4(a)(iii) or 4(d)).

(e)Default Interest; Other Amounts. Prior to the occurrence or effective designation of an Early Termination Date in respect of the relevant Transaction, a party that defaults in the performance of any payment obligation will, to the extent permitted by law and subject to Section 6(c), be required to pay interest (before as well as after judgment) on the overdue amount to the other party on demand in the same currency as such overdue amount, for the period from (and including) the original due date for payment to (but excluding) the date of actual payment, at the Default Rate. Such interest will be calculated on the basis of daily compounding and the actual number of days elapsed. If, prior to the occurrence or effective designation of an Early Termination Date in respect of the relevant Transaction, a party defaults in the performance of any obligation required to be settled by delivery, it will compensate the other party on demand if and to the extent provided for in the relevant Confirmation or elsewhere in this Agreement.

3.Representations

Each party represents to the other party (which representations will be deemed to be repeated by each party on each date on which a Transaction is entered into and, in the case of the representations in Section 3(f), at all times until the termination of this Agreement) that:—

(a)Basic Representations.

(i)Status. It is duly organised and validly existing under the laws of the jurisdiction of its organisation or incorporation and, if relevant under such laws, in good standing;

(ii)Powers. It has the power to execute this Agreement and any other documentation relating to this Agreement to which it is a party, to deliver this Agreement and any other documentation relating to this Agreement that it is required by this Agreement to deliver and to perform its obligations under this Agreement and any obligations it has under any Credit Support Document to which it is a party and has taken all necessary action to authorise such execution, delivery and performance;

(iii)No Violation or Conflict. Such execution, delivery and performance do not violate or conflict with any law applicable to it, any provision of its constitutional documents, any order or judgment of any court or other agency of government applicable to it or any of its assets or any contractual restriction binding on or affecting it or any of its assets;

(iv)Consents. All governmental and other consents that are required to have been obtained by it with respect to this Agreement or any Credit Support Document to which it is a party have been obtained and are in full force and effect and all conditions of any such consents have been complied with; and

(v)Obligations Binding. Its obligations under this Agreement and any Credit Support Document to which it is a party constitute its legal, valid and binding obligations, enforceable in accordance with their respective terms (subject to applicable bankruptcy, reorganisation, insolvency, moratorium or similar laws affecting creditors’ rights generally and subject, as to enforceability, to equitable principles of general application (regardless of whether enforcement is sought in a proceeding in equity or at law)).

(b)Absence of Certain Events. No Event of Default or Potential Event of Default or, to its knowledge, Termination Event with respect to it has occurred and is continuing and no such event or circumstance would occur as a result of its entering into or performing its obligations under this Agreement or any Credit Support Document to which it is a party.

(c)Absence of Litigation. There is not pending or, to its knowledge, threatened against it or any of its Affiliates any action, suit or proceeding at law or in equity or before any court, tribunal, governmental body, agency or official or any arbitrator that is likely to affect the legality, validity or enforceability against it of this Agreement or any Credit Support Document to which it is a party or its ability to perform its obligations under this Agreement or such Credit Support Document.

(d)Accuracy of Specified Information. All applicable information that is furnished in writing by or on behalf of it to the other party and is identified for the purpose of this Section 3(d) in the Schedule is, as of the date of the information, true, accurate and complete in every material respect.

(e)Payer Tax Representation. Each representation specified in the Schedule as being made by it for the purpose of this Section 3(e) is accurate and true.

(f)Payee Tax Representations. Each representation specified in the Schedule as being made by it for the purpose of this Section 3(f) is accurate and true.

4.Agreements

Each party agrees with the other that, so long as either party has or may have any obligation under this Agreement or under any Credit Support Document to which it is a party:—

(a)Furnish Specified Information. It will deliver to the other party or, in certain cases under subparagraph (iii) below, to such government or taxing authority as the other party reasonably directs:—

(i)any forms, documents or certificates relating to taxation specified in the Schedule or any Confirmation;

(ii)any other documents specified in the Schedule or any Confirmation; and

(iii)upon reasonable demand by such other party, any form or document that may be required or reasonably requested in writing in order to allow such other party or its Credit Support Provider to make a payment under this Agreement or any applicable Credit Support Document without any deduction or withholding for or on account of any Tax or with such deduction or withholding at a reduced rate (so long as the completion, execution or submission of such form or document would not materially prejudice the legal or commercial position of the party in receipt of such demand), with any such form or document to be accurate and completed in a manner reasonably satisfactory to such other party and to be executed and to be delivered with any reasonably required certification,

in each case by the date specified in the Schedule or such Confirmation or, if none is specified, as soon as reasonably practicable.

(b)Maintain Authorisations. It will use all reasonable efforts to maintain in full force and effect all consents of any governmental or other authority that are required to be obtained by it with respect to this Agreement or any Credit Support Document to which it is a party and will use all reasonable efforts to obtain any that may become necessary in the future.

(c)Comply with Laws. It will comply in all material respects with all applicable laws and orders to which it may be subject if failure so to comply would materially impair its ability to perform its obligations under this Agreement or any Credit Support Document to which it is a party.

(d)Tax Agreement. It will give notice of any failure of a representation made by it under Section 3(f) to be accurate and true promptly upon learning of such failure.

(e)Payment of Stamp Tax. Subject to Section 11, it will pay any Stamp Tax levied or imposed upon it or in respect of its execution or performance of this Agreement by a jurisdiction in which it is incorporated, organised, managed and controlled, or considered to have its seat, or in which a branch or office through which it is acting for the purpose of this Agreement is located (“Stamp Tax Jurisdiction”) and will indemnify the other party against any Stamp Tax levied or imposed upon the other party or in respect of the other party’s execution or performance of this Agreement by any such Stamp Tax Jurisdiction which is not also a Stamp Tax Jurisdiction with respect to the other party.

5.Events of Default and Termination Events

(a)Events of Default. The occurrence at any time with respect to a party or, if applicable, any Credit Support Provider of such party or any Specified Entity of such party of any of the following events constitutes an event of default (an “Event of Default”) with respect to such party:—

(i)Failure to Pay or Deliver. Failure by the party to make, when due, any payment under this Agreement or delivery under Section 2(a)(i) or 2(e) required to be made by it if such failure is not remedied on or before the third Local Business Day after notice of such failure is given to the party;

(ii)Breach of Agreement. Failure by the party to comply with or perform any agreement or obligation (other than an obligation to make any payment under this Agreement or delivery under Section 2(a)(i) or 2(e) or to give notice of a Termination Event or any agreement or obligation under Section 4(a)(i), 4(a)(iii) or 4(d)) to be complied with or performed by the party in accordance with this Agreement if such failure is not remedied on or before the thirtieth day after notice of such failure is given to the party;

(iii) Credit Support Default.

(1)Failure by the party or any Credit Support Provider of such party to comply with or perform any agreement or obligation to be complied with or performed by it in accordance with any Credit Support Document if such failure is continuing after any applicable grace period has elapsed;

(2)the expiration or termination of such Credit Support Document or the failing or ceasing of such Credit Support Document to be in full force and effect for the purpose of this Agreement (in either case other than in accordance with its terms) prior to the satisfaction of all obligations of such party under each Transaction to which such Credit Support Document relates without the written consent of the other party; or

(3)the party or such Credit Support Provider disaffirms, disclaims, repudiates or rejects, in whole or in part, or challenges the validity of, such Credit Support Document;

(iv)Misrepresentation. A representation (other than a representation under Section 3(e) or (f)) made or repeated or deemed to have been made or repeated by the party or any Credit Support Provider of such party in this Agreement or any Credit Support Document proves to have been incorrect or misleading in any material respect when made or repeated or deemed to have been made or repeated;

(v)Default under Specified Transaction. The party, any Credit Support Provider of such party or any applicable Specified Entity of such party (1) defaults under a Specified Transaction and, after giving effect to any applicable notice requirement or grace period, there occurs a liquidation of, an acceleration of obligations under, or an early termination of, that Specified Transaction, (2) defaults, after giving effect to any applicable notice requirement or grace period, in making any payment or delivery due on the last payment, delivery or exchange date of, or any payment on early termination of, a Specified Transaction (or such default continues for at least three Local Business Days if there is no applicable notice requirement or grace period) or (3) disaffirms, disclaims, repudiates or rejects, in whole or in part, a Specified Transaction (or such action is taken by any person or entity appointed or empowered to operate it or act on its behalf);

(vi)Cross Default. If “Cross Default” is specified in the Schedule as applying to, the party, the occurrence or existence of (1) a default, event of default or other similar condition or event (however described) in respect of such party, any Credit Support Provider of such party or any applicable Specified Entity of such party under one or more agreements or instruments relating to Specified Indebtedness of any of them (individually or collectively) in an aggregate amount of not less than the applicable Threshold Amount (as specified in the Schedule) which has resulted in such Specified Indebtedness becoming, or becoming capable at such time of being declared, due and payable under such agreements or instruments, before it would otherwise have been due and payable or (2) a default by such party, such Credit Support Provider or such Specified Entity (individually or collectively) in making one or more payments on the due date thereof in an aggregate amount of not less than the applicable Threshold Amount under such agreements or instruments (after giving effect to any applicable notice requirement or grace period);

(vii)Bankruptcy. The party, any Credit Support Provider of such party or any applicable Specified Entity of such party:—

(1) is dissolved (other than pursuant to a consolidation, amalgamation or merger); (2) becomes insolvent or is unable to pay its debts or fails or admits in writing its inability generally to pay its debts as they become due; (3) makes a general assignment, arrangement or composition with or for the benefit of its creditors; (4) institutes or has instituted against it a proceeding seeking a judgment of insolvency or bankruptcy or any other relief under any bankruptcy or insolvency law or other similar law affecting creditors’ rights, or a petition is presented for its winding-up or liquidation, and, in the case of any such proceeding or petition instituted or presented against it, such proceeding or petition (A) results in a judgment of insolvency or bankruptcy or the entry of an order for relief or the making of an order for its winding-up or liquidation or (B) is not dismissed, discharged, stayed or restrained in each case within 30 days of the institution or presentation thereof; (5) has a resolution passed for its winding-up, official management or liquidation (other than pursuant to a consolidation, amalgamation or merger); (6) seeks or becomes subject to the appointment of an administrator, provisional liquidator, conservator, receiver, trustee, custodian or other similar official for it or for all or substantially all its assets; (7) has a secured party take possession of all or substantially all its assets or has a distress, execution, attachment, sequestration or other legal process levied, enforced or sued on or against all or substantially all its assets and such secured party maintains possession, or any such process is not dismissed, discharged, stayed or restrained, in each case within 30 days thereafter; (8) causes or is subject to any event with respect to it which, under the applicable laws of any jurisdiction, has an analogous effect to any of the events specified in clauses (1) to (7) (inclusive); or (9) takes any action in furtherance of, or indicating its consent to, approval of, or acquiescence in, any of the foregoing acts; or

(viii)Merger Without Assumption. The party or any Credit Support Provider of such party consolidates or amalgamates with, or merges with or into, or transfers all or substantially all its assets to, another entity and, at the time of such consolidation, amalgamation, merger or transfer.—

(1)the resulting, surviving or transferee entity fails to assume all the obligations of such party or such Credit Support Provider under this Agreement or any Credit Support Document to which it or its predecessor was a party by operation of law or pursuant to an agreement reasonably satisfactory to the other party to this Agreement; or

(2)the benefits of any Credit Support Document fail to extend (without the consent of the other party) to the performance by such resulting, surviving or transferee entity of its obligations under this Agreement.

(b)Termination Events. The occurrence at any time with respect to a party or, if applicable, any Credit Support Provider of such party or any Specified Entity of such party of any event specified below constitutes an Illegality if the event is specified in (i) below, a Tax Event if the event is specified in (ii) below or a Tax Event Upon Merger if the event is specified in (iii) below, and, if specified to be applicable, a Credit Event

Upon Merger if the event is specified pursuant to (iv) below or an Additional Termination Event if the event is specified pursuant to (v) below:—

(i)Illegality. Due to the adoption of, or any change in, any applicable law after the date on which a Transaction is entered into, or due to the promulgation of, or any change in, the interpretation by any court, tribunal or regulatory authority with competent jurisdiction of any applicable law after such date, it becomes unlawful (other than as a result of a breach by the party of Section 4(b)) for such party (which will be the Affected Party):—

(1)to perform any absolute or contingent obligation to make a payment or delivery or to receive a payment or delivery in respect of such Transaction or to comply with any other material provision of this Agreement relating to such Transaction; or

(2)to perform, or for any Credit Support Provider of such party to perform, any contingent or other obligation which the party (or such Credit Support Provider) has under any Credit Support Document relating to such Transaction;

(ii)Tax Event. Due to (x) any action taken by a taxing authority, or brought in a court of competent jurisdiction, on or after the date on which a Transaction is entered into (regardless of whether such action is taken or brought with respect to a party to this Agreement) or (y) a Change in Tax Law, the party (which will be the Affected Party) will, or there is a substantial likelihood that it will, on the next succeeding Scheduled Payment Date (1) be required to pay to the other party an additional amount in respect of an Indemnifiable Tax under Section 2(d)(i)(4) (except in respect of interest under Section 2(e), 6(d)(ii) or 6(e)) or (2) receive a payment from which an amount is required to be deducted or withheld for or on account of a Tax (except in respect of interest under Section 2(e), 6(d)(ii) or 6(e)) and no additional amount is required to be paid in respect of such Tax under Section 2(d)(i)(4) (other than by reason of Section 2(d)(i)(4)(A) or (B));

(iii)Tax Event Upon Merger. The party (the “Burdened Party”) on the next succeeding Scheduled Payment Date will either (1) be required to pay an additional amount in respect of an Indemnifiable Tax under Section 2(d)(i)(4) (except in respect of interest under Section 2(e), 6(d)(ii) or 6(e)) or (2) receive a payment from which an amount has been deducted or withheld for or on account of any Indemnifiable Tax in respect of which the other party is not required to pay an additional amount (other than by reason of Section 2(d)(i)(4)(A) or (B)), in either case as a result of a party consolidating or amalgamating with, or merging with or into, or transferring all or substantially all its assets to, another entity (which will be the Affected Party) where such action does not constitute an event described in Section 5(a)(viii);

(iv)Credit Event Upon Merger. If “Credit Event Upon Merger” is specified in the Schedule as applying to the party, such party (“X”), any Credit Support Provider of X or any applicable Specified Entity of X consolidates or amalgamates with, or merges with or into, or transfers all or substantially all its assets to, another entity and such action does not constitute an event described in Section 5(a)(viii) but the creditworthiness of the resulting, surviving or transferee entity is materially weaker than that of X, such Credit Support Provider or such Specified Entity, as the case may be, immediately prior to such action (and, in such event, X or its successor or transferee, as appropriate, will be the Affected Party); or

(v)Additional Termination Event. If any “Additional Termination Event” is specified in the Schedule or any Confirmation as applying, the occurrence of such event (and, in such event, the Affected Party or Affected Parties shall be as specified for such Additional Termination Event in the Schedule or such Confirmation).

(c)Event of Default and Illegality. If an event or circumstance which would otherwise constitute or give rise to an Event of Default also constitutes an Illegality, it will be treated as an Illegality and will not constitute an Event of Default.

6.Early Termination

(a)Right to Terminate Following Event of Default. If at any time an Event of Default with respect to a party (the “Defaulting Party”) has occurred and is then continuing, the other party (the “Non-defaulting Party”) may, by not more than 20 days notice to the Defaulting Party specifying the relevant Event of Default, designate a day not earlier than the day such notice is effective as an Early Termination Date in respect of all outstanding Transactions. If, however, “Automatic Early Termination” is specified in the Schedule as applying to a party, then an Early Termination Date in respect of all outstanding Transactions will occur immediately upon the occurrence with respect to such party of an Event of Default specified in Section 5(a)(vii)(1), (3), (5), (6) or, to the extent analogous thereto, (8), and as of the time immediately preceding the institution of the relevant proceeding or the presentation of the relevant petition upon the occurrence with respect to such party of an Event of Default specified in Section 5(a)(vii)(4) or, to the extent analogous thereto, (8).

(b)Right to Terminate Following Termination Event.

(i)Notice. If a Termination Event occurs, an Affected Party will, promptly upon becoming aware of it, notify the other party, specifying the nature of that Termination Event and each Affected Transaction and will also give such other information about that Termination Event as the other party may reasonably require.

(ii)Transfer to Avoid Termination Event. If either an Illegality under Section 5(b)(i)(1) or a Tax Event occurs and there is only one Affected Party, or if a Tax Event Upon Merger occurs and the Burdened Party is the Affected Party, the Affected Party will, as a condition to its right to designate an Early Termination Date under Section 6(b)(iv), use all reasonable efforts (which will not require such party to incur a loss, excluding immaterial, incidental expenses) to transfer within 20 days after it gives notice under Section 6(b)(i) all its rights and obligations under this Agreement in respect of the Affected Transactions to another of its Offices or Affiliates so that such Termination Event ceases to exist.

If the Affected Party is not able to make such a transfer it will give notice to the other party to that effect within such 20 day period, whereupon the other party may effect such a transfer within 30 days after the notice is given under Section 6(b)(i).

Any such transfer by a party under this Section 6(b)(ii) will be subject to and conditional upon the prior written consent of the other party, which consent will not be withheld if such other party’s policies in effect at such time would permit it to enter into transactions with the transferee on the terms proposed.

(iii) Two Affected Parties. If an Illegality under Section 5(b)(i)(1) or a Tax Event occurs and there are two Affected Parties, each party will use all reasonable efforts to reach agreement within 30 days after notice thereof is given under Section 6(b)(i) on action to avoid that Termination Event.

(iv)Right to Terminate. If:—

(1)a transfer under Section 6(b)(ii) or an agreement under Section 6(b)(iii), as the case may be, has not been effected with respect to all Affected Transactions within 30 days after an Affected Party gives notice under Section 6(b)(i); or

(2)an Illegality under Section 5(b)(i)(2), a Credit Event Upon Merger or an Additional Termination Event occurs, or a Tax Event Upon Merger occurs and the Burdened Party is not the Affected Party,

either party in the case of an Illegality, the Burdened Party in the case of a Tax Event Upon Merger, any Affected Party in the case of a Tax Event or an Additional Termination Event if there is more than one Affected Party, or the party which is not the Affected Party in the case of a Credit Event Upon Merger or an Additional Termination Event if there is only one Affected Party may, by not more than 20 days notice to the other party and provided that the relevant Termination Event is then continuing, designate a day not earlier than the day such notice is effective as an Early Termination Date in respect of all Affected Transactions.

(c)Effect of Designation.

(i)If notice designating an Early Termination Date is given under Section 6(a) or (b), the Early Termination Date will occur on the date so designated, whether or not the relevant Event of Default or Termination Event is then continuing.

(ii)Upon the occurrence or effective designation of an Early Termination Date, no further payments or deliveries under Section 2(a)(i) or 2(e) in respect of the Terminated Transactions will be required to be made, but without prejudice to the other provisions of this Agreement. The amount, if any, payable in respect of an Early Termination Date shall be determined pursuant to Section 6(e).

(d)Calculations.

(i)Statement. On or as soon as reasonably practicable following the occurrence of an Early Termination Date, each party will make the calculations on its part, if any, contemplated by Section 6(e) and will provide to the other party a statement (1) showing, in reasonable detail, such calculations (including all relevant quotations and specifying any amount payable under Section 6(e)) and (2) giving details of the relevant account to which any amount payable to it is to be paid. In the absence of written confirmation from the source of a quotation obtained in determining a Market Quotation, the records of the party obtaining such quotation will be conclusive evidence of the existence and accuracy of such quotation.

(ii)Payment Date. An amount calculated as being due in respect of any Early Termination Date under Section 6(e) will be payable on the day that notice of the amount payable is effective (in the case of an Early Termination Date which is designated or occurs as a result of an Event of Default) and on the day which is two Local Business Days after the day on which notice of the amount payable is effective (in the case of an Early Termination Date which is designated as a result of a Termination Event). Such amount will be paid together with (to the extent permitted under applicable law) interest thereon (before as well as after judgment) in the Termination Currency, from (and including) the relevant Early Termination Date to (but excluding) the date such amount is paid, at the Applicable Rate. Such interest will be calculated on the basis of daily compounding and the actual number of days elapsed.

(e)Payments on Early Termination. If an Early Termination Date occurs, the following provisions shall apply based on the parties' election in the Schedule of a payment measure, either “Market Quotation” or “Loss”, and a payment method, either the “First Method” or the “Second Method”. If the parties fail to designate a payment measure or payment method in the Schedule, it will be deemed that “Market Quotation” or the “Second Method”, as the case may be, shall apply. The amount, if any, payable in respect of an Early Termination Date and determined pursuant to this Section will be subject to any Set-off.

(i)Events of Default. If the Early Termination Date results from an Event of Default:—

(1)First Method and Market Quotation. If the First Method and Market Quotation apply, the Defaulting Party will pay to the Non-defaulting Party the excess, if a positive number, of (A) the sum of the Settlement Amount (determined by the Non-defaulting Party) in respect of the Terminated Transactions and the Termination Currency Equivalent of the Unpaid Amounts owing to the Non-defaulting Party over (B) the Termination Currency Equivalent of the Unpaid Amounts owing to the Defaulting Party.

(2)First Method and Loss. If the First Method and Loss apply, the Defaulting Party will pay to the Non-defaulting Party, if a positive number, the Non-defaulting Party's Loss in respect of this Agreement.

(3)Second Method and Market Quotation. If the Second Method and Market Quotation apply, an amount will be payable equal to (A) the sum of the Settlement Amount (determined by the Non-defaulting Party) in respect of the Terminated Transactions and the Termination Currency Equivalent of the Unpaid Amounts owing to the Non-defaulting Party over (B) the Termination Currency Equivalent of the Unpaid Amounts owing to the Defaulting Party. If that amount is a positive number, the Defaulting Party will pay it to the Non-defaulting Party; if it is a negative number, the Non-defaulting Party will pay the absolute value of that amount to the Defaulting Party.

(4)Second Method and Loss. If the Second Method and Loss apply, an amount will be payable equal to the Non-defaulting Party’s Loss in respect of this Agreement. If that amount is a positive number, the Defaulting Party will pay it to the Non-defaulting Party; if it is a negative number, the Non-defaulting Party will pay the absolute value of that amount to the Defaulting Party.

(ii)Termination Events. If the Early Termination Date results from a Termination Event:—

(1) One Affected Party. If there is one Affected Party, the amount payable will be determined in accordance with Section 6(e)(i)(3), if Market Quotation applies, or Section 6(e)(i)(4), if Loss applies, except that, in either case, references to the Defaulting Party and to the Non-defaulting Party will be deemed to be references to the Affected Party and the party which is not the Affected Party, respectively, and, if Loss applies and fewer than all the Transactions are being terminated, Loss shall be calculated in respect of all Terminated Transactions.

(2)Two Affected Parties. If there are two Affected Parties:—

(A)if Market Quotation applies, each party will determine a Settlement Amount in respect of the Terminated Transactions, and an amount will be payable equal to (I) the sum of (a) one-half of the difference between the Settlement Amount of the party with the higher Settlement Amount (“X”) and the Settlement Amount of the party with the lower Settlement Amount (“Y”) and (b) the Termination Currency Equivalent of the Unpaid Amounts owing to X less (II) the Termination Currency Equivalent of the Unpaid Amounts owing to Y; and

(B)if Loss applies, each party will determine its Loss in respect of this Agreement (or, if fewer than all the Transactions are being terminated, in respect of all Terminated Transactions) and an amount will be payable equal to one-half of the difference between the Loss of the party with the higher Loss (“X”) and the Loss of the party with the lower Loss (“Y”).

If the amount payable is a positive number, Y will pay it to X; if it is a negative number, X will pay the absolute value of that amount to Y.

(iii)Adjustment for Bankruptcy. In circumstances where an Early Termination Date occurs because “Automatic Early Termination” applies in respect of a party, the amount determined under this Section 6(e) will be subject to such adjustments as are appropriate and permitted by law to reflect any payments or deliveries made by one party to the other under this Agreement (and retained by such other party) during the period from the relevant Early Termination Date to the date for payment determined under Section 6(d)(ii).

(iv)Pre-Estimate. The parties agree that if Market Quotation applies an amount recoverable under this Section 6(e) is a reasonable pre-estimate of loss and not a penalty. Such amount is payable for the loss of bargain and the loss of protection against future risks and except as otherwise provided in this Agreement neither party will be entitled to recover any additional damages as a consequence of such losses.

7.Transfer

Subject to Section 6(b)(ii), neither this Agreement nor any interest or obligation in or under this Agreement may be transferred (whether by way of security or otherwise) by either party without the prior written consent of the other party, except that:—

(a)a party may make such a transfer of this Agreement pursuant to a consolidation or amalgamation with, or merger with or into, or transfer of all or substantially all its assets to, another entity (but without prejudice to any other right or remedy under this Agreement); and

(b)a party may make such a transfer of all or any part of its interest in any amount payable to it from a Defaulting Party under Section 6(e).

Any purported transfer that is not in compliance with this Section will be void.

8.Contractual Currency

(a)Payment in the Contractual Currency. Each payment under this Agreement will be made in the relevant currency specified in this Agreement for that payment (the “Contractual Currency”). To the extent permitted by applicable law, any obligation to make payments under this Agreement in the Contractual Currency will not be discharged or satisfied by any tender in any currency other than the Contractual Currency, except to the extent such tender results in the actual receipt by the party to which payment is owed, acting in a reasonable manner and in good faith in converting the currency so tendered into the Contractual Currency, of the full amount in the Contractual Currency of all amounts payable in respect of this Agreement. If for any reason the amount in the Contractual Currency so received falls short of the amount in the Contractual Currency payable in respect of this Agreement, the party required to make the payment will, to the extent permitted by applicable law, immediately pay such additional amount in the Contractual Currency as may be necessary to compensate for the shortfall. If for any reason the amount in the Contractual Currency so received exceeds the amount in the Contractual Currency payable in respect of this Agreement, the party receiving the payment will refund promptly the amount of such excess.

(b)Judgments. To the extent permitted by applicable law, if any judgment or order expressed in a currency other than the Contractual Currency is rendered (i) for the payment of any amount owing in respect of this Agreement, (ii) for the payment of any amount relating to any early termination in respect of this Agreement or (iii) in respect of a judgment or order of another court for the payment of any amount described in (i) or (ii) above, the party seeking recovery, after recovery in full of the aggregate amount to which such party is entitled pursuant to the judgment or order, will be entitled to receive immediately from the other party the amount of any shortfall of the Contractual Currency received by such party as a consequence of sums paid in such other currency and will refund promptly to the other party any excess of the Contractual Currency received by such party as a consequence of sums paid in such other currency if such shortfall or such excess arises or results from any variation between the rate of exchange at which the Contractual Currency is converted into the currency of the judgment or order for the purposes of such judgment or order and the rate of exchange at which such party is able, acting in a reasonable manner and in good faith in converting the currency received into the Contractual Currency, to purchase the Contractual Currency with the amount of the currency of the judgment or order actually received by such party. The term “rate of exchange” includes, without limitation, any premiums and costs of exchange payable in connection with the purchase of or conversion into the Contractual Currency.

(c)Separate Indemnities. To the extent permitted by applicable law, these indemnities constitute separate and independent obligations from the other obligations in this Agreement, will be enforceable as separate and independent causes of action, will apply notwithstanding any indulgence granted by the party to which any payment is owed and will not be affected by judgment being obtained or claim or proof being made for any other sums payable in respect of this Agreement.

(d)Evidence of Loss. For the purpose of this Section 8, it will be sufficient for a party to demonstrate that it would have suffered a loss had an actual exchange or purchase been made.

9.Miscellaneous

(a)Entire Agreement. This Agreement constitutes the entire agreement and understanding of the parties with respect to its subject matter and supersedes all oral communication and prior writings with respect thereto.

(b)Amendments. No amendment, modification or waiver in respect of this Agreement will be effective unless in writing (including a writing evidenced by a facsimile transmission) and executed by each of the parties or confirmed by an exchange of telexes or electronic messages on an electronic messaging system.

(c)Survival of Obligations. Without prejudice to Sections 2(a)(iii) and 6(c)(ii), the obligations of the parties under this Agreement will survive the termination of any Transaction.

(d)Remedies Cumulative. Except as provided in this Agreement, the rights, powers, remedies and privileges provided in this Agreement are cumulative and not exclusive of any rights, powers, remedies and privileges provided by law.

(e)Counterparts and Confirmations.

(i)This Agreement (and each amendment, modification and waiver in respect of it) may be executed and delivered in counterparts (including by facsimile transmission), each of which will be deemed an original.

(ii)The parties intend that they are legally bound by the terms of each Transaction from the moment they agree to those terms (whether orally or otherwise). A Confirmation shall be entered into as soon as practicable and may be executed and delivered in counterparts (including by facsimile transmission) or be created by an exchange of telexes or by an exchange of electronic messages on an electronic messaging system, which in each case will be sufficient for all purposes to evidence a binding supplement to this Agreement. The parties will specify therein or through another effective means that any such counterpart, telex or electronic message constitutes a Confirmation.

(f)No Waiver of Rights. A failure or delay in exercising any right, power or privilege in respect of this Agreement will not be presumed to operate as a waiver, and a single or partial exercise of any right, power or privilege will not be presumed to preclude any subsequent or further exercise, of that right, power or privilege or the exercise of any other right, power or privilege.

(g)Headings. The headings used in this Agreement are for convenience of reference only and are not to affect the construction of or to be taken into consideration in interpreting this Agreement.

10.Offices; Multibranch Parties

(a)If Section 10(a) is specified in the Schedule as applying, each party that enters into a Transaction through an Office other than its head or home office represents to the other party that, notwithstanding the place of booking office or jurisdiction of incorporation or organisation of such party, the obligations of such party are the same as if it had entered into the Transaction through its head or home office. This representation will be deemed to be repeated by such party on each date on which a Transaction is entered into.

(b)Neither party may change the Office through which it makes and receives payments or deliveries for the purpose of a Transaction without the prior written consent of the other party.

(c)If a party is specified as a Multibranch Party in the Schedule, such Multibranch Party may make and receive payments or deliveries under any Transaction through any Office listed in the Schedule, and the Office through which it makes and receives payments or deliveries with respect to a Transaction will be specified in the relevant Confirmation.

11.Expenses

A Defaulting Party will, on demand, indemnify and hold harmless the other party for and against all reasonable out-of-pocket expenses, including legal fees and Stamp Tax, incurred by such other party by reason of the enforcement and protection of its rights under this Agreement or any Credit Support Document to which the Defaulting Party is a party or by reason of the early termination of any Transaction, including, but not limited to, costs of collection.

12.Notices

(a)Effectiveness. Any notice or other communication in respect of this Agreement may be given in any manner set forth below (except that a notice or other communication under Section 5 or 6 may not be given by facsimile transmission or electronic messaging system) to the address or number or in accordance with the electronic messaging system details provided (see the Schedule) and will be deemed effective as indicated:—

(i)if in writing and delivered in person or by courier, on the date it is delivered;

(ii)if sent by telex, on the date the recipient’s answerback is received;

(iii)if sent by facsimile transmission, on the date that transmission is received by a responsible employee of the recipient in legible form (it being agreed that the burden of proving receipt will be on the sender and will not be met by a transmission report generated by the sender’s facsimile machine);

(iv)if sent by certified or registered mail (airmail, if overseas) or the equivalent (return receipt requested), on the date that mail is delivered or its delivery is attempted; or

(v)if sent by electronic messaging system, on the date that electronic message is received,

UNLESS THE DATE OF THAT DELIVERY (OR ATTEMPTED DELIVERY) OR THAT RECEIPT, AS APPLICABLE, IS NOT A LOCAL BUSINESS DAY OR THAT COMMUNICATION IS DELIVERED (OR ATTEMPTED) OR RECEIVED, AS APPLICABLE, AFTER THE CLOSE OF BUSINESS ON A LOCAL BUSINESS DAY, IN WHICH CASE THAT COMMUNICATION SHALL BE DEEMED GIVEN AND EFFECTIVE ON THE FIRST FOLLOWING DAY THAT IS A LOCAL BUSINESS DAY.

(b)Change of Addresses. Either party may by notice to the other change the address, telex or facsimile number or electronic messaging system details at which notices or other communications are to be given to it.

13.Governing Law and Jurisdiction

(a)Governing Law. This Agreement will be governed by and construed in accordance with the law specified in the Schedule.

(b)Jurisdiction. With respect to any suit, action or proceedings relating to this Agreement (“Proceedings”), each party irrevocably:—

(i)submits to the jurisdiction of the English courts, if this Agreement is expressed to be governed by English law, or to the non-exclusive jurisdiction of the courts of the State of New York and the United States District Court located in the Borough of Manhattan in New York City, if this Agreement is expressed to be governed by the laws of the State of New York; and

(ii)waives any objection which it may have at any time to the laying of venue of any Proceedings brought in any such court, waives any claim that such Proceedings have been brought in an inconvenient forum and further waives the right to object, with respect to such Proceedings, that such court does not have any jurisdiction over such party.

Nothing in this Agreement precludes either party from bringing Proceedings in any other jurisdiction (outside, if this Agreement is expressed to be governed by English law, the Contracting States, as defined in Section 1(3) of the Civil Jurisdiction and Judgments Act 1982 or any modification, extension or re-enactment thereof for the time being in force) nor will the bringing of Proceedings in any one or more jurisdictions preclude the bringing of Proceedings in any other jurisdiction.

(c)Service of Process. Each party irrevocably appoints the Process Agent (if any) specified opposite its name in the Schedule to receive, for it and on its behalf, service of process in any Proceedings. If for any reason any party’s Process Agent is unable to act as such, such party will promptly notify the other party and within 30 days appoint a substitute process agent acceptable to the other party. The parties irrevocably consent to service of process given in the manner provided for notices in Section 12. Nothing in this Agreement will affect the right of either party to serve process in any other manner permitted by law.

(d) Waiver of Immunities. Each party irrevocably waives, to the fullest extent permitted by applicable law, with respect to itself and its revenues and assets (irrespective of their use or intended use), all immunity on the grounds of sovereignty or other similar grounds from (i) suit, (ii) jurisdiction of any court, (iii) relief by way of injunction, order for specific performance or for recovery of property, (iv) attachment of its assets (whether before or after judgment) and (v) execution or enforcement of any judgment to which it or its revenues or assets might otherwise be entitled in any Proceedings in the courts of any jurisdiction and irrevocably agrees, to the extent permitted by applicable law, that it will not claim any such immunity in any Proceedings.

14.Definitions

As used in this Agreement:—

“Additional Termination Event” has the meaning specified in Section 5(b).

“Affected Party” has the meaning specified in Section 5(b).

“Affected Transactions” means (a) with respect to any Termination Event consisting of an Illegality, Tax Event or Tax Event Upon Merger, all Transactions affected by the occurrence of such Termination Event and (b) with respect to any other Termination Event, all Transactions.

“Affiliate” means, subject to the Schedule, in relation to any person, any entity controlled, directly or indirectly, by the person, any entity that controls, directly or indirectly, the person or any entity directly or indirectly under common control with the person. For this purpose, “control” of any entity or person means ownership of a majority of the voting power of the entity or person.

“Applicable Rate” means:—

(a)in respect of obligations payable or deliverable (or which would have been but for Section 2(a)(iii)) by a Defaulting Party, the Default Rate;

(b)in respect of an obligation to pay an amount under Section 6(e) of either party from and after the date (determined in accordance with Section 6(d)(ii)) on which that amount is payable, the Default Rate;

(c)in respect of all other obligations payable or deliverable (or which would have been but for Section 2(a)(iii)) by a Non-defaulting Party, the Non-default Rate; and

(d)in all other cases, the Termination Rate.

“Burdened Party” has the meaning specified in Section 5(b).

“Change in Tax Law” means the enactment, promulgation, execution or ratification of, or any change in or amendment to, any law (or in the application or official interpretation of any law) that occurs on or after the date on which the relevant Transaction is entered into.

“consent” includes a consent, approval, action, authorisation, exemption, notice, filing, registration or exchange control consent.

“Credit Event Upon Merger” has the meaning specified in Section 5(b).

“Credit Support Document” means any agreement or instrument that is specified as such in this Agreement.

“Credit Support Provider” has the meaning specified in the Schedule.

“Default Rate” means a rate per annum equal to the cost (without proof or evidence of any actual cost) to the relevant payee (as certified by it) if it were to fund or of finding the relevant amount plus 1% per annum.

“Defaulting Party” has the meaning specified in Section 6(a).

“Early Termination Date” means the date determined in accordance with Section 6(a) or 6(b)(iv).

“Event of Default” has the meaning specified in Section 5(a) and, if applicable, in the Schedule.

“Illegality” has the meaning specified in Section 5(b).

“Indemnifiable Tax” means any Tax other than a Tax that would not be imposed in respect of a payment under this Agreement but for a present or former connection between the jurisdiction of the government or taxation authority imposing such Tax and the recipient of such payment or a person related to such recipient (including, without limitation, a connection arising from such recipient or related person being or having been a citizen or resident of such jurisdiction, or being or having been organised, present or engaged in a trade or business in such jurisdiction, or having or having had a permanent establishment or fixed place of business in such jurisdiction, but excluding a connection arising solely from such recipient or related person having executed, delivered, performed its obligations or received a payment under, or enforced, this Agreement or a Credit Support Document).

“law” includes any treaty, law, rule or regulation (as modified, in the case of tax matters, by the practice of any relevant governmental revenue authority) and “lawful” and “unlawful” will be construed accordingly.

“Local Business Day” means, subject to the Schedule, a day on which commercial banks are open for business (including dealings in foreign exchange and foreign currency deposits) (a) in relation to any obligation under Section 2(a)(i), in the place(s) specified in the relevant Confirmation or, if not so specified, as otherwise agreed by the parties in writing or determined pursuant to provisions contained, or incorporated by reference, in this Agreement, (b) in relation to any other payment, in the place where the relevant account is located and, if different, in the principal financial centre, if any, of the currency of such payment, (c) in relation to any notice or other communication, including notice contemplated under Section 5(a)(i), in the city specified in the address for notice provided by the recipient and, in the case of a notice contemplated by Section 2(b), in the place where the relevant new account is to be located and (d) in relation to Section 5(a)(v)(2), in the relevant locations for performance with respect to such Specified Transaction.

“Loss” means, with respect to this Agreement or one or more Terminated Transactions, as the case may be, and a party, the Termination Currency Equivalent of an amount that party reasonably determines in good faith to be its total losses and costs (or gain, in which case expressed as a negative number) in connection with this Agreement or that Terminated Transaction or group of Terminated Transactions, as the case may be, including any loss of bargain, cost of funding or, at the election of such party but without duplication, loss or cost incurred as a result of its terminating, liquidating, obtaining or reestablishing any hedge or related trading position (or any gain resulting from any of them). Loss includes losses and costs (or gains) in respect of any payment or delivery required to have been made (assuming satisfaction of each applicable condition precedent) on or before the relevant Early Termination Date and not made, except, so as to avoid duplication, if Section 6(e)(i)(1) or (3) or 6(e)(ii)(2)(A) applies. Loss does not include a party’s legal fees and out-of-pocket expenses referred to under Section 11. A party will determine its Loss as of the relevant Early Termination Date, or, if that is not reasonably practicable, as of the earliest date thereafter as is reasonably practicable. A party may (but need not) determine its Loss by reference to quotations of relevant rates or prices from one or more leading dealers in the relevant markets.

“Market Quotation” means, with respect to one or more Terminated Transactions and a party making the determination, an amount determined on the basis of quotations from Reference Market-makers. Each quotation will be for an amount, if any, that would be paid to such party (expressed as a negative number) or by such party (expressed as a positive number) in consideration of an agreement between such party (taking into account any existing Credit Support Document with respect to the obligations of such party) and the quoting Reference Market-maker to enter into a transaction (the “Replacement Transaction”) that would have the effect of preserving for such party the economic equivalent of any payment or delivery (whether the underlying obligation was absolute or contingent and assuming the satisfaction of each applicable condition precedent) by the parties under Section 2(a)(i) in respect of such Terminated Transaction or group of Terminated Transactions that would, but for the occurrence of the relevant Early Termination Date, have been required after that date. For this purpose, Unpaid Amounts in respect of the Terminated Transaction or group of Terminated Transactions are to be excluded but, without limitation, any payment or delivery that would, but for the relevant Early Termination Date, have been required (assuming satisfaction of each applicable condition precedent) after that Early Termination Date is to be included. The Replacement Transaction would be subject to such documentation as such party and the Reference Market-maker may, in good faith, agree. The party making the determination (or its agent) will request each Reference Market-maker to provide its quotation to the extent reasonably practicable as of the same day and time (without regard to different time zones) on or as soon as reasonably practicable after the relevant Early Termination Date. The day and time as of which those quotations are to be obtained will be selected in good faith by the party obliged to make a determination under Section 6(e), and, if each party is so obliged, after consultation with the other. If more than three quotations are provided, the Market Quotation will be the arithmetic mean of the quotations, without regard to the quotations having the highest and lowest values. If exactly three such quotations are provided, the Market Quotation will be the quotation remaining after disregarding the highest and lowest quotations. For this purpose, if more than one quotation has the same highest value or lowest value, then one of such quotations shall be disregarded. If fewer than three quotations are provided, it will be deemed that the Market Quotation in respect of such Terminated Transaction or group of Terminated Transactions cannot be determined.

“Non-default Rate” means a rate per annum equal to the cost (without proof or evidence of any actual cost) to the Non-defaulting Party (as certified by it) if it were to fund the relevant amount.

“Non-defaulting Party” has the meaning specified in Section 6(a).

“Office” means a branch or office of a party, which may be such party’s head or home office.

“Potential Event of Default” means any event which, with the giving of notice or the lapse of time or both, would constitute an Event of Default.

“Reference Market-makers” means four leading dealers in the relevant market selected by the party determining a Market Quotation in good faith (a) from among dealers of the highest credit standing which satisfy all the criteria that such party applies generally at the time in deciding whether to offer or to make an extension of credit and (b) to the extent practicable, from among such dealers having an office in the same city.

“Relevant Jurisdiction” means, with respect to a party, the jurisdictions (a) in which the party is incorporated, organised, managed and controlled or considered to have its seat, (b) where an Office through which the party is acting for purposes of this Agreement is located, (c) in which the party executes this Agreement and (d) in relation to any payment, from or through which such payment is made.

“Scheduled Payment Date” means a date on which a payment or delivery is to be made under Section 2(a)(i) with respect to a Transaction.

“Set-off” means set-off, offset, combination of accounts, right of retention or withholding or similar right or requirement to which the payer of an amount under Section 6 is entitled or subject (whether arising under this Agreement, another contract, applicable law or otherwise) that is exercised by, or imposed on, such payer.

“Settlement Amount” means, with respect to a party and any Early Termination Date, the sum of —

(a) the Termination Currency Equivalent of the Market Quotations (whether positive or negative) for each Terminated Transaction or group of Terminated Transactions for which a Market Quotation is determined; and

(b)such party’s Loss (whether positive or negative and without reference to any Unpaid Amounts) for each Terminated Transaction or group of Terminated Transactions for which a Market Quotation cannot be determined or would not (in the reasonable belief of the party making the determination) produce a commercially reasonable result.

“Specified Entity” has the meanings specified in the Schedule.

“Specified Indebtedness” means, subject to the Schedule, any obligation (whether present or future, contingent or otherwise, as principal or surety or otherwise) in respect of borrowed money.

“Specified Transaction” means, subject to the Schedule, (a) any transaction (including an agreement with respect thereto) now existing or hereafter entered into between one party to this Agreement (or any Credit Support Provider of such party or any applicable Specified Entity of such party) and the other party to this Agreement (or any Credit Support Provider of such other party or any applicable Specified Entity of such other party) which is a rate swap transaction, basis swap, forward rate transaction, commodity swap, commodity option, equity or equity index swap, equity or equity index option, bond option, interest rate option, foreign exchange transaction, cap transaction, floor transaction, collar transaction, currency swap transaction, cross-currency rate swap transaction, currency option or any other similar transaction (including any option with respect to any of these transactions), (b) any combination of these transactions and (c) any other transaction identified as a Specified Transaction in this Agreement or the relevant confirmation.

“Stamp Tax” means any stamp, registration, documentation or similar tax.

“Tax” means any present or future tax, levy, impost, duty, charge, assessment or fee of any nature (including interest, penalties and additions thereto) that is imposed by any government or other taxing authority in respect of any payment under this Agreement other than a stamp, registration, documentation or similar tax.

“Tax Event” has the meaning specified in Section 5(b).

“Tax Event Upon Merger” has the meaning specified in Section 5(b).

“Terminated Transactions” means with respect to any Early Termination Date (a) if resulting from a Termination Event, all Affected Transactions and (b) if resulting from an Event of Default, all Transactions (in either case) in effect immediately before the effectiveness of the notice designating that Early Termination Date (or, if “Automatic Early Termination” applies, immediately before that Early Termination Date).

“Termination Currency” has the meaning specified in the Schedule.

“Termination Currency Equivalent” means, in respect of any amount denominated in the Termination Currency, such Termination Currency amount and, in respect of any amount denominated in a currency other than the Termination Currency (the “Other Currency”), the amount in the Termination Currency determined by the party making the relevant determination as being required to purchase such amount of such Other Currency as at the relevant Early Termination Date, or, if the relevant Market Quotation or Loss (as the case may be), is determined as of a later date, that later date, with the Termination Currency at the rate equal to the spot exchange rate of the foreign exchange agent (selected as provided below) for the purchase of such Other Currency with the Termination Currency at or about 11:00 a.m. (in the city in which such foreign exchange agent is located) on such date as would be customary for the determination of such a rate for the purchase of such Other Currency for value on the relevant Early Termination Date or that later date. The foreign exchange agent will, if only one party is obliged to make a determination under Section 6(e), be selected in good faith by that party and otherwise will be agreed by the parties.

“Termination Event” means an Illegality, a Tax Event or a Tax Event Upon Merger or, if specified to be applicable, a Credit Event Upon Merger or an Additional Termination Event.

“Termination Rate” means a rate per annum equal to the arithmetic mean of the cost (without proof or evidence of any actual cost) to each party (as certified by such party) if it were to fund or of funding such amounts.

“Unpaid Amounts” owing to any party means, with respect to an Early Termination Date, the aggregate of (a) in respect of all Terminated Transactions, the amounts that became payable (or that would have become payable but for Section 2(a)(iii)) to such party under Section 2(a)(i) on or prior to such Early Termination Date and which remain unpaid as at such Early Termination Date and (b) in respect of each Terminated Transaction, for each obligation under Section 2(a)(i) which was (or would have been but for Section 2(a)(iii)) required to be settled by delivery to such party on or prior to such Early Termination Date and which has not been so settled as at such Early Termination Date, an amount equal to the fair market

value of that which was (or would have been) required to be delivered as of the originally scheduled date for delivery, in each case together with (to the extent permitted under applicable law) interest, in the currency of such amounts, from (and including) thedate such amounts or obligations wereor would havebeen required to have been paid or performed to (but excluding)such Early Termination Date, at the Applicable Rate. Such amounts of interest will be calculated on the basis of daily compounding and the actual number of days elapsed. The fair market value of any obligation referred to in clause (b) above shall be reasonably determined by the party obliged to make the determination under Section 6(e) or, if each party is so obliged, it shall be the average of the Termination Currency Equivalents of the fair market values reasonably determined by both parties.

IN WITNESS WHEREOF the parties have executed this document on the respective dates specified below with effect from the date specified on the first page of this document.

LEHMAN BROTHERS SPECIAL FINANCING INC.	WELLS FARGO BANK, N.A., NOT IN ITS INDIVIDUAL CAPACITY BUT SOLELY AS TRUSTEE OF THE SUPPLEMENTAL INTEREST TRUST, FOR BNC MORTGAGE LOAN TRUST MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 2007-4
(Name of Party)	(Name of Party)
/s/ Scott Sefton	/s/ Martin Reed
Name: Scott Sefton	Name: Martin Reed
Title: Vice President	Title: Vice President
Date: 1/8/08	Date: 1/8/2008

(Multicurrency-Cross Border)

SCHEDULE

to the

Master Agreement

dated as of January 4, 2008

between

LEHMAN BROTHERS SPECIAL FINANCING INC. (“Party A”),

a corporation organized under the laws of

the State of Delaware

and

WELLS FARGO BANK, N.A., NOT IN ITS INDIVIDUAL CAPACITY BUT SOLELY AS TRUSTEE OF THE

SUPPLEMENTAL INTEREST TRUST, FOR BNC MORTGAGE LOAN TRUST

MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 2007-4 (“Party B”)

All terms used herein and not otherwise defined are given their meaning in the Trust Agreement dated as of December 1, 2007 among Structured Asset Securities Corporation, as depositor, Aurora Loan Services LLC, as master servicer, Wells Fargo Bank, N.A, as trustee, and Risk Management Group, LLC, as credit risk manager (the “Trust Agreement”)

Part 1: Termination Provisions

In this Agreement:-

(a) “Specified Entity” means in relation to Party A for the purpose of:-

Section 5(a)(v), Not applicable.

Section 5(a)(vi), Not applicable.

Section 5(a)(vii), Not applicable.

Section 5(b)(iv), Not applicable.

and in relation to Party B for the purpose of:-

Section 5(a)(v), Not applicable.

Section 5(a)(vi), Not applicable.

Section 5(a)(vii), Not applicable.

Section 5(b)(iv), Not applicable.

(b) “Specified Transaction” will have the meaning specified in Section 14 of this Agreement.

(c) (i) The “Failure to Pay” provisions of Section 5(a)(i) will apply to Party A and Party B; provided, however, that Section 5(a)(i) is hereby amended by replacing the word “third” with the word “first.”

(ii) The “Breach of Agreement” provisions of Section 5(a)(ii) will apply to Party A and will not apply to Party B.

(iii) The “Credit Support Default” provisions of Section 5(a)(iii) will apply to Party A and will not apply to Party B except that Section 5(a)(iii)(i) will apply to Party B’s obligations under Paragraph 3(b) of the Credit Support Annex; provided however, that with respect to any Credit Support Annex, Section 5(a)(iii) will only apply to Party A in the event that such failure is not remedied on or before the third Local Business Day after notice of such failure is given to Party A.

Notwithstanding Sections 5(a)(i) and 5(a)(iii), any failure by Party A to comply with or perform any obligation to be complied with or performed by Party A under any Credit Support Annex from time to time entered into between Party A and Party B in relation to this Master Agreement shall not be an Event of Default unless (A) (i) a Fitch Ratings Event has occurred and is continuing and at least 30 calendar days have elapsed since the date of a Fitch Ratings Event first occurred and (ii) such failure is not remedied on or before the third Local Business Day after notice of such failure is given to Party A; or (B) (i) an S&P Ratings Event has occurred and is continuing and at least 10 Local Business Days have elapsed since the last time the S&P Ratings Event first occurred and (ii) such failure is not remedied on or before the third Local Business Day after notice of such failure is given to Party A.

(iv) The “Misrepresentation” provisions of Section 5(a)(iv) will apply to Party A and will not apply to Party B.

(v) The “Default under Specified Transaction” provisions of Section 5(a)(v) will apply to Party A and will not apply to Party B.

(vi) “Cross Default” provisions of Section 5(a)(vi) will apply to Party A and will not apply to Party B.

The following provisions apply:

“Specified Indebtedness” will have the meaning specified in Section 14 of this Agreement.

“Threshold Amount” means the lesser of (i) USD 100 million and (ii) two percent (2%) of the Stockholders’ Equity of Lehman Brothers Holdings Inc. (“Lehman Brothers Holdings Inc.” or “Holdings”), in the case of Party A and Holdings (or its equivalent in any other currency).

(vii) The “Bankruptcy” provisions of Section 5(a)(vii) will apply to Party A and to Party B; provided that clauses (2), (7) and (9) thereof shall not apply to Party B.Clause (4) of Section 5(a)(vii) will not apply to Party B to the extent that it refers to proceedings or petitions instituted or presented by Party A or any of its Affiliates. Clause (6) of Section 5(a)(vii) will not apply to Party B to the extent that it refers to (i) any appointment that is contemplated or effected by the Trust Agreement or (ii) any appointment to which Party B has not become subject. Clause (8) of Section 5(a)(vii) will not apply to Party B to the extent that it applies to Section 5(a)(vii)(2), (4), (6), and (7) (except to the extent that such provisions are not disapplied with respect to Party B).

(viii) The “Merger without Assumption” provisions of Section 5(a)(viii) will apply to Party A and will apply to Party B.

(d) (i) The “Illegality” provisions of Section 5(b)(i) will apply to Party A and will apply to Party B.

(ii) The “Tax Event” provisions of Section 5(b)(ii) will apply to both parties provided that the words “(x) any action taken by a taxing authority, or brought in a court of competent jurisdiction, on or after the date on which a Transaction is entered into (regardless of whether such action is taken or brought with respect to a party to this Agreement or (y)” shall be deleted.

(iii) The “Tax Event Upon Merger” provisions of Section 5(b)(iii) will apply to both parties, provided that Party A shall not be entitled to designate an Early Termination Date by reason of a Tax Event upon Merger in respect of which it is the Affected Party.

Section 6(b)(ii) will apply, provided that the words “or if a Tax Event Upon Merger occurs and the Burdened Party is the Affected Party” shall be deleted.

(iv) The “Credit Event Upon Merger” provisions of Section 5(b)(iv) will not apply to Party A and will not apply to Party B.

(e) The “Automatic Early Termination” provision of Section 6(a) will not apply to Party A and will not apply to Party B.

(f) Payments on Early Termination.

(A)For the purpose of Section 6(e) of this Agreement, Market Quotation and Second Method will apply.

(B) Calculations. Notwithstanding Section 6 of this Agreement, so long as Party A is (A) the Affected Party in respect of an Additional Termination Event or a Tax Event Upon Merger or (B) the Defaulting Party in respect of any Event of Default, paragraphs (i) to (vi) below shall apply:

(i)The definition of “Market Quotation” shall be deleted in its entirety and replaced with the following:

“Market Quotation” means, with respect to one or more Terminated Transactions, a Firm Offer which is (1) made by a Reference Market-maker, (2) for an amount that would be paid to Party B (expressed as a negative number) or by Party B (expressed as a positive number) in consideration of an agreement between Party B and such Reference Market-maker to enter into a transaction (the “Replacement Transaction”) that would have the effect for preserving for such party the economic equivalent of any payment or delivery (whether the underlying obligation was absolute or contingent and assuming the satisfaction of each applicable condition precedent) by the parties under Section 2(a)(i) in respect of such Termination transactions or group of Terminated Transactions that would, but for the occurrence of the relevant Early Termination Date, have been required after that Date, (3) made on the basis that Unpaid Amounts in respect of the Terminated Transaction or group of Transactions are to be excluded but, without limitation, any payment or delivery that would, but for the relevant Early Termination Date, have been required (assuming satisfaction of each applicable condition precedent) after that Early Termination Date is to be included and (4) made in respect of a Replacement Transaction with terms substantially the same as those of this Agreement (save for the exclusion of provisions relating to Transactions that are not Terminated Transactions).”

(ii) The definition of “Settlement Amount” shall be deleted in its entirety and replaced with the following:

“Settlement Amount” means, with respect to any Early Termination Date, an amount (as determined by Party B) equal to the Termination Currency Equivalent of the amount (whether positive or negative) of any Market Quotation for the relevant Terminated Transaction or group of Terminated Transactions that is accepted by Party B so as to become legally binding, provided that:

(1)If, on the day falling ten Local Business Days after the day on which the Early Termination Date is designated or such later day as Party B may specify in writing to Party A (but in either case no later than the Early Termination Date) (such day the “Latest Settlement Amount Determination Day”), no Market Quotation for the relevant Terminated Transaction or group of Terminated Transactions has been accepted by Party B so as to become legally binding and one or more Market Quotations have been made and remain capable of becoming legally binding upon acceptance, the Settlement Amount shall equal the Termination Currency Equivalent of the amount (whether positive or negative) of the lowest of such Market Quotations; and

(2)If, on the Latest Settlement Amount Determination Day, no Market Quotation for the relevant Terminated Transaction or group of Terminated Transactions is accepted by Party B so as to become legally binding and no Market Quotations have been made and remain capable of becoming legally binding upon acceptance, the Settlement Amount shall equal Party B’s Loss (whether positive or negative and without reference to any Unpaid amounts) for the relevant Terminated Transaction or group of Terminated Transactions.

(iii)For the purpose of sub-paragraph (4) of the definition of Market Quotation, Party B shall determine in its sole discretion, acting in a commercially reasonable manner, whether a Firm Offer is made in respect of a Replacement Transaction with commercial terms substantially the same as those of this Agreement (save for the exclusion of provisions relating to Transactions that are not Terminated Transactions).

(iv)At any time on or before the Latest Settlement Amount Determination Day at which two or more Market Quotations remain capable of becoming legally binding upon acceptance, Party B shall be entitled to accept only the lowest of such Market Quotations.

(v)if Party B requests Party A in writing to obtain Market Quotations, Party A shall use its reasonable efforts to do so before the Latest Settlement Amount Determination Day.

(vi)If the Settlement Amount is a negative number, Section 6(e)(i)(3) of this Agreement shall be deleted in its entirety and replaced with the following:

“Second Method and Market Quotation”. If Second Method and Market Quotation apply, (1) Party B shall pay to Party A an amount equal to the absolute value of the Settlement Amount in respect of the Terminated Transactions, (2) Party B shall pay to Party A the Termination Currency Equivalent of the Unpaid Amounts owing to Party A and (3) Party A shall pay to Party B the Termination Currency Equivalent of the Unpaid Amounts owing to Party B, provided that, (i) the amounts payable under (2) and (3) shall be subject to netting in accordance with Section 2(c) of this Agreement and (ii) notwithstanding any other provision of this Agreement, any amount payable by Party A under (3) shall not be netted against any amount payable by Party B under (1).”

(g) “Termination Currency” means USD.

(h) Timing of Party B Termination Payment. If an amount calculated as being due in respect of an Early Termination Date under Section 6(e) of this Agreement is an amount to be paid by Party B to Party A then, notwithstanding the provisions of Section 6(d)(ii) of this Agreement, such amount will be payable on the first Distribution Date following the date on which the payment would have been payable as determined in accordance with Section 6(d)(ii); provided that if the date on which the payment would have been payable as determined in accordance with Section 6(d)(ii) is a Distribution Date, then the payment will be payable on the date determined in accordance with Section 6(d)(ii).

(i) Additional Termination Events will apply. Each of the following shall constitute an Additional Termination Event:

(A) Reserved.

(B) (I) S&PCollateralization Event. An S&P Collateralization Event has occurred and is continuing and Party A has failed to comply with or perform any obligation to be complied with or performed by Party A in accordance with the "Downgrade Provisions" as set forth in Part 5(f)(ii) and a S&P Ratings Event has neither occurred nor is continuing.

(II)S&PRatings Event. An S&P Ratings Event has occurred and is continuing and (i) Party A has failed to comply with or perform any obligation to be complied with or performed by Party A in accordance with the Credit Support Annex or (ii) at least 60 calendar days or more have elapsed since such S&P Ratings Event first occurred.

(III) Fitch Collateralization Event. A Fitch Collateralization Event has occurred and is continuing and Party A has failed to comply with or perform any obligation to be complied with or performed by Party A in accordance with the “Downgrade Provisions” as set forth in Part 5(f)(ii) and a Fitch Ratings Event has neither occurred nor is continuing with respect to Fitch. Any event which constitutes an Additional Termination Event pursuant to this Section 1(h)(i)(B)(III) shall not constitute an Event of Default.

(IV)Fitch Ratings Event. A Fitch Ratings Event has occurred and is continuing and at least 60 calendar days or more have elapsed since such Fitch Ratings Event first occurred. Any event which constitutes an Additional Termination Event pursuant to this Section 1(h)(i)(B)(IV) shall not constitute an Event of Default.

For the purpose of the foregoing Termination Events in this Part 1(i)(B), Party A shall be the sole Affected Party.

(C) Termination of Trust Agreement. Party B or the Trust Fund (as defined in the Trust Agreement) is terminated. For the purpose of the foregoing Termination Event, Party B shall be the sole Affected Party.

(D) Amendment of Trust Agreement. The Trust Agreement is amended or modified without the prior written consent of Party A where such consent is required under the terms of the Trust Agreement; provided, however, that it shall not be an Additional Termination Event where such amendment or modification involves the appointment of any successor trustee, master servicer or servicer pursuant to the terms of the Trust Agreement. For the purpose of the foregoing Termination Event, Party B shall be the sole Affected Party.

(E) Certificate Reduction. The Class Principal Amounts of the rated Certificates are reduced to zero. For the purpose of the foregoing Termination Event, Party B shall be the sole Affected Party

(F) Master Servicer’s/Insurer’s Option to Purchase Loans. Notice of the Master Servicer’s or the NIMS Insurer’s intention to exercise its option to purchase the Mortgage Loans pursuant to Section 7.01 of the Trust Agreement is given by the Trustee to Certificateholders pursuant to Section 7.02 of the Trust Agreement, provided that the Early Termination Date may not be earlier than the date on which the Certificates are redeemed pursuant to Section 7.02 of the Trust Agreement. For the purpose of the foregoing Termination Event, Party B shall be the sole Affected Party.

Part 2: Tax Representations

(a) Payer Tax Representations. For the purpose of Section 3(e) of this Agreement, Party A and Party B will each make the following representation: None.

(b) Payee Tax Representations. For the purpose of Section 3(f) of this Agreement, Party A represents that it is a corporation duly organized and validly existing under the laws of the State of Delaware.

(c) Tax Representations in Confirmations. For purposes of Sections 2(d)(i)(4) and 3(f), any payee tax representation specified in a Confirmation under this Agreement shall be deemed to be specified in this Schedule.

(d) Gross Up. Section 2(d)(i)(4) shall not apply to Party B as X, and Section 2(d)(ii) shall not apply to Party B as Y, in each case such that Party B shall not be required to pay any additional amounts referred to therein.

(e) Indemnificable Tax. The definition of “Indemnifiable Tax” in Section 14 is deleted in its entirety and replaced with the following:

“Indemnifiable Tax” means, in relation to payments by Party A, any Tax and, in relation to payments by Party B, no Tax.

Part 3: Agreement to Deliver Documents

For the purpose of Sections 4(a)(i) and (ii) of this Agreement, each party agrees to deliver the following documents, as applicable:-

(a)Tax forms, documents or certificates to be delivered are:-

Party required to deliver document	Form/Document/ Certificate	Date by which to be Delivered
Party A and Party B	Forms and/or documents described in Section 4(a)(iii) of the Agreement.	Upon reasonable demand by the other party.

(b)Other documents to be delivered are:-

Party required to deliver document	Form/Document/ Certificate	Date by which to be Delivered	Covered by Section 3(d)
Party A and Party B	For each party, an incumbency certificate with respect to each signatory to this Agreement and the Credit Support Documents.	Upon execution of this Agreement.	Yes
Party A	A copy of the annual report of its Credit Support Provider containing audited consolidated financial statements for such fiscal year certified by independent public accountants and prepared in accordance with generally accepted accounting principles consistently applied.	Upon request.	Yes
Party A	For its most recent fiscal quarter, a copy of the unaudited financial statements of its Credit Support Provider, prepared in accordance with generally accepted accounting principles consistently applied.	Upon request.	Yes

Party required to deliver document	Form/Document/ Certificate	Date by which to be Delivered	Covered by Section 3(d)
Party A and Party B	(i) In the case of Party A, a copy of the resolutions or other action of the board of directors of each of Party A and its Credit Support Provider and (ii) in the case of Party B, (x) a resolution of the board of directors certified by a secretary or assistant secretary of Party B, or (y) an Trust Agreement or other document of Party B, pursuant to which Party B is authorized to enter into this Agreement, each Credit Support Document to which it is a party, and each Transaction from time to time entered into hereunder (the “Authorizing Resolution”).	Upon execution of this Agreement.	Yes
Party A	A guarantee of Holdings substantially in the form of Exhibit A to this Schedule.	Upon execution of this Agreement	No
Party A	An opinion of counsel to Party A substantially in the form of Exhibit C to this Schedule.	Upon execution of this Agreement	No
Party B	An opinion of counsel to Party B that is addressed to Party A substantially in the form of Exhibit B to this Schedule reasonably satisfactory in form and substance to Party A.	Upon execution of this Agreement	No
Party B	Trust Agreement	Upon execution of this Agreement	Yes
Party B	All reports to the Trustee pursuant to 9.24 of the Trust Agreement.	At such time as each report is delivered to the Trustee	Yes
Party B	All reports pursuant to 4.03 of the Trust Agreement.	In accordance with the terms of the Trust Agreement
Party B	All reports that go to the Rating Agencies.	As applicable.	Yes

Party required to deliver document	Form/Document/ Certificate	Date by which to be Delivered	Covered by Section 3(d)
Party B	Each material amendment, supplement or waiver to the Trust Agreement, as proposed from time to time, or any other amendment or modification of the Trust Agreement that requires the written consent of Party A under the terms of the Trust Agreement.	Promptly upon learning of any proposed amendment, supplement or waiver.	No

Part 4: Miscellaneous

(a) Addresses for Notices. For the purpose of Section 12(a) of this Agreement:-

Address for notices or communications to Party A:-

Address: Lehman Brothers Special Financing Inc.

c/o Lehman Brothers Inc.

Legal, Compliance & Audit Group

Capital Markets Contracts - Legal

745 Seventh Avenue

New York, New York 10019

Attention: Documentation Manager

Telephone No.: (212) 526-7187

Facsimile No.: (212) 526-7672

For all purposes.

Address for notices or communications to Party B:-

Wells Fargo Bank, N.A., Trustee

9062 Old Annapolis Road

Columbia, Maryland 21045

Attention: Client Manager, BNC Mortgage Loan Trust, Series 2007-4

Facsimile: (410) 715-2380

Phone: (410) 884-2000

With a copy to:

Aurora Loan Services LLC, as Master Servicer

10350 Park Meadows Drive

Littleton, Colorado 80124

Attention: Jerald W. Dreyer

Telephone: (720) 945-3481

Facsimile: (720) 945-4287

For all purposes.

(b) Process Agent. For the purpose of Section 13(c) of this Agreement:-

Party A appoints as its Process Agent: Not applicable.

Party B appoints as its Process Agent: Not applicable.

(c) Offices. The provisions of Section 10(a) will apply to this Agreement.

(d) Multibranch Party. For the purpose of Section 10(c) of this Agreement:-

Party A is not a Multibranch Party.

Party B is not a Multibranch Party.

(e) Calculation Agent. The Calculation Agent is Party A.

(f) Credit Support Document.

In the case of Party A: (1) A guarantee of Party A's obligations hereunder substantially in the form annexed hereto as Exhibit A to this Schedule or any Eligible Guarantee. (2) The Credit Support Annex which supplements, forms part of, and is subject to this Agreement.

In the case of Party B: The Credit Support Annex which supplements, forms part of, and is subject to this Agreement.

(g) Credit Support Provider.

Credit Support Provider means in relation to Party A: Holdings so long as any subsidiary of Holdings is Party A or any other guarantor, if applicable, under an Eligible Guarantee.

Credit Support Provider means in relation to Party B: None.

(h) Governing Law. This Agreement will be governed by and construed in accordance with the laws of the State of New York (without reference to choice of law doctrine other than Sections 5-1401 and 5-1402 of the New York General Obligations Law).

(i) Jurisdiction.Section 13(b) is hereby amended by: (i) deleting in the second line of subparagraph (i) thereof the word “non-”; and (ii) deleting the final paragraph thereof.

(j) Netting of Payments.Subparagraph (ii) of Section 2(c) of this Agreement will apply.

(k) “Affiliate” will have the meaning specified in Section 14 of this Agreement, provided that Party B shall be deemed to have no Affiliates; provided, however, that (except for the purpose of Part 1(c)(vi)) with respect to Party A, such definition shall be understood to exclude Lehman Brothers Derivative Products Inc. and Lehman Brothers Financial Products Inc.

(l) Local Business Day. The definition of Local Business Day in Section 14 of this Agreement shall be amended by the addition of the words “or any Credit Support Document” after “Section 2(a)(i)” and the addition of the words “or Credit Support Document” after “Confirmation”.

Part 5: Other Provisions

(a) General Conditions.Section 2(a)(iii) is hereby amended by (X) inserting in the third line thereof after the words “and is continuing, (2)” and before the words “the condition precedent” the following phrase “the condition precedent that no Additional Termination Event has occurred and is continuing with respect to which the other party is an Affected Party and with respect to which all outstanding Transactions are Affected Transactions, (3)” and (Y) delete the symbol “(3)” before the words “each other applicable condition” and substitute the symbol “(4)” in lieu thereof.

(b) Accuracy of Specified Information.Section 3(d) is hereby amended by inserting in the third line thereof after the words “in every material respect” and before the period the phrase “or, in the case of audited or unaudited financial statements, a fair presentation, in all material respects, of the financial condition of the relevant person.”

(c) No Violation or Conflict Representation.Section 3(a)(iii) is hereby amended by inserting in the second line thereof after the words “constitutional documents” and before the words “, any order or judgment” the phrase “(including, but not limited to, the Trust Agreement, as amended, and any and all resolutions, investment policies, guidelines, procedures or restrictions)”; provided, such amendment shall be applicable only with respect to the Representations of Party B.

(d) Representations.Section 3 is hereby amended by adding the following subsections after subsection (f) thereof:

(g) No Agency. Party A is acting as principal and not as agent when entering into this Agreement, any Credit Support Document to which it is a party, and each Transaction. Party B is acting not in its individual capacity but solely as Trustee on behalf of the Supplemental Interest Trust.

(h) Eligible Contract Participant. It is an “eligible contract participant” within the meaning of Section 1a(12) of the Commodity Exchange Act, as amended.

(i) Non-Reliance. Party A is acting for its own account and it has made its own independent decisions to enter into each Transaction and as to whether that Transaction is appropriate or proper for it based upon its own judgment and upon advice from such advisors as it has deemed necessary. Party B is acting not in its individual capacity but solely as Trustee on behalf of the Supplemental Interest Trust. It is not relying on any communication (written or oral) of the other party as investment advice or a recommendation to enter into that Transaction. No communication (written or oral) received from the other party shall be deemed to be an assurance or guarantee as to the expected results of that Transaction.

(j) Assessment and Understanding. It is capable of assessing the merits of and understanding (on its own behalf or through independent professional advice), and understands and accepts, the terms, conditions and risks of that Transaction. It is also capable of assuming, and assumes, the risks of that Transaction.

(k) Status of Parties. The other party is not acting as a fiduciary for or an adviser to it in respect of that Transaction.

(e) Additional Representations and Warranties of Party B. Party B represents to Party A in accordance with Section 3 of the Agreement (which representations will be deemed to be repeated by Party B at all times until the termination of this Agreement) that:

(i) Constitutional Documents. Party B is in compliance, in all material respects, with its constitutional documents (including, but not limited to, the Trust Agreement, as amended from time-to-time, and any and all resolutions, investment policies, guidelines, procedures or restrictions), and each Transaction contemplated hereunder is and will be an authorized and permitted transaction thereunder and an Authorizing Resolution is in full force and effect.

(ii) Swap Agreement. (i) Party A is Swap Counterparty, (ii) this Agreement (and each Transaction entered into hereunder) is a Swap Agreement and (iii) the obligations and liabilities of Party B under this Agreement and the relevant Credit Support Documents constitute the secured obligations of Party B under the Trust Agreement.

(iii) Compliance with Laws. Party B is in compliance, in all respects, with all applicable laws, rules, regulations, interpretations, guidelines, procedures, and policies of applicable regulatory authorities affecting Party B, this Agreement, the Transactions, or the performance of Party B’s obligations hereunder.

(f) Downgrade Provisions.

(i) It shall be a collateralization event (a “Collateralization Event”) if:

(A) with respect to each Relevant Entity that is a Financial Institution, either:

(i) the Short-term Rating of such Relevant Entity is "A-2" from S&P, or

(ii) if such Relevant Entity does not have a Short-term Rating from S&P, the Long-term Rating of such Relevant Entity is "A", “A-“ or “BBB+” from S&P

(such event, an “S&P Collateralization Event”), or

(B) with respect to each Relevant Entity, the Long-term Rating or financial strength ratings of such Relevant Entity is below “A” from Fitch (such event, a “Fitch Collateralization Event”).

“Relevant Entity” means Party A or Party A’s Credit Support Provider, as applicable.

(ii) Without prejudice to Party A's obligations under the Credit Support Annex, during any period in which a Collateralization Event is occurring, Party A shall, at its own expense either

(I) post collateral according to the terms of the Credit Support Annex, or

(II) within (a) 60 calendar days in the case of an S&P Collateralization Event (so long as collateral was posted according to the terms of the Credit Support Annex within 10 Business Days), or (b) 30 calendar days, in the case of a Fitch Collateralization Event: (i) furnish an Eligible Guarantee (as defined below) of Party A's obligations under this Agreement from a guarantor that satisfies the Hedge Counterparty Ratings Requirement (as defined below); or (ii) obtain a substitute counterparty (and provide prior written notice to each Rating Agency with respect thereto) that (a) satisfies the Hedge Counterparty Ratings Requirement and (b) assumes the obligations of Party A under this Agreement (through an assignment and assumption agreement in form and substance reasonably satisfactory to Party B and subject to the Rating Agency Condition) or, subject to prior written notice to the Rating Agencies, replaces the outstanding Transactions hereunder with transactions on identical terms, except that Party A shall be replaced as counterparty, provided that such substitute counterparty, as of the date of such assumption or replacement, must not, as a result thereof, be required to withhold or deduct on account of tax under the Agreement or the new transactions, as applicable, and such assumption or replacement must not lead to a Termination Event or Event of Default occurring in respect of the new transactions, as applicable; or

(III) take such other steps as may be allowed subject to satisfaction of the relevant Rating Agency Condition.

“Eligible Guarantee” means an unconditional and irrevocable guarantee (a) in a form identical to that attached hereto as Exhibit A (except for the name, address and the jurisdiction of the guarantor so long as the jurisdiction has a tax treaty in place with the United States that precludes the withholding or deduction of any amount payable to Party B by the Guarantor pursuant to the Guarantee), and subject to prior written notice to the Rating Agencies, or that otherwise satisfies the Rating Agency Condition or (b) that is provided by a guarantor as principal debtor rather than surety and is directly enforceable by Party B and subject to satisfaction of the Rating Agency Condition, where either (A) a law firm has given a legal opinion confirming that none of the guarantor’s payments to Party B under such guarantee will be subject to withholding for Tax or (B) such guarantee provides that, in the event that any of such guarantor’s payments to Party B are subject to withholding for Tax, such guarantor is required to pay such additional amount as is necessary to ensure that the net amount actually received by Party B (free and clear of any withholding tax) will equal the full amount Party B would have received had no such withholding been required.

An entity shall satisfy the “Hedge Counterparty Ratings Requirement” if (a) either (i) the Relevant Entity is not a Financial Institution and its Short-term Rating is at least “A-1” by S&P or, if the Relevant Entity does not have a Short-term Rating from S&P, its Long-term Rating is at least “A+” from S&P or (ii) the Relevant Entity is a Financial Institution and (1) its Short-term Rating is at least “A-2” from S&P, or if it does not have a Short-term Rating from S&P, its Long-term Rating is at least “BBB+” from S&P, and (2) such Relevant Entity posts collateral pursuant to the Credit Support Annex and (b) either (i) theLong-term Rating or financial strength rating of such Relevant Entity is below “A” from Fitch or (ii) the Short-term Rating of such Relevant Entity is at least “F1” from Fitch. For the purpose of this definition, no direct or indirect recourse against one or more shareholders of the entity (or against any Person in control of, or controlled by, or under common control with, any such shareholder) shall be deemed to constitute a guarantee, security or support of the obligations of the entity.

(iii) It shall be a ratings event (“Ratings Event”) if at any time after the date hereof

(A) (1) if the Relevant Entity is a Financial Institution, the Short-term Rating of each Relevant Entity is “A-3” or below from S&P or, if such Relevant Entity does not have a Short-term Rating from S&P, a Long-term Rating “BBB” or below from S&P or the Relevant Entity is no longer rated by S&P or

(2) if the Relevant Entity is not a Financial Institution, its Short-term Rating is “A-2” or below from S&P, or if such Relevant Entity does not have a Short-term Rating, its Long-term Rating is “A” or below from S&P, or such Relevant Entity is no longer rated by S&P (such event, an “S&P Ratings Event”) or

(B) either (i) the Long-term Rating of each Relevant Entity is “BBB” or below from Fitch or (ii) the Short-term Rating of each Relevant Entity is “F2” or below from Fitch (such event, a “Fitch Ratings Event”).

(iv)Following a Ratings Event, Party A shall take the following actions:

in the case of an S&P Ratings Event or a Fitch Ratings Event, Party A, at its sole expense, shall post collateral according to the terms of the Credit Support Annex, and as soon as reasonably practicable but no later than 60 calendar days after the Ratings Event, use commercially reasonable efforts to

(x) furnish an Eligible Guarantee of Party A’s obligations under this Agreement from a guarantor that satisfies the Hedge Counterparty Ratings Requirement or

(y) obtain a substitute counterparty (and provide written notice to each Rating Agency with respect thereto), that (A) satisfies the Hedge Counterparty Ratings Requirement and (B) assumes the obligations of Party A under this Agreement (through an assignment and assumption agreement in form and substance reasonably satisfactory to Party B and subject to satisfying the Rating Agency Condition or in form and substance which maintains the obligations of Party A on identical terms, (except for the name, address and the jurisdiction of the substitute counterparty so long as the jurisdiction has a tax treaty in place with the United States that precludes the withholding or deduction of any amount payable to Party B by the substitute counterparty) and subject to prior written notice to the Rating Agencies) or replaces the outstanding Transactions hereunder with transactions on identical terms, (except for the name, address and the jurisdiction of the substitute counterparty so long as the jurisdiction has a tax treaty in place with the United States that precludes the withholding or deduction of any amount payable to Party B by the substitute counterparty), subject to prior written notice to the Rating Agencies, provided that such substitute counterparty, as of the date of such assumption or replacement, must not, as a result thereof, be required to withhold or deduct on account of tax under the Agreement or the new transactions, as applicable, and such assumption or replacement must not lead to a Termination Event or Event of Default occurring in respect of the new transactions, as applicable; or

(z) take other steps subject to satisfaction of the relevant Rating Agency Condition.

(g) Third-Party Beneficiary. Party B agrees with Party A that Party A shall be an express third-party beneficiary of the Trust Agreement.

(h) Set-off.

(i)All payments under this Agreement shall be made without set-off or counterclaim, except as expressly provided for in Section 2(c), Section 6, Part 1(f)(vi) above and in Paragraphs 8(a) or (b) of the Credit Support Annex attached hereto.

(ii)Section 6(e) shall be amended by the deletion of the following sentence: “The amount, if any, payable in respect of an Early Termination Date and determined pursuant to this Section will be subject to any Set-off.”

(i) Transfer and Assignment. Notwithstanding anything to the contrary in Section 7 of the Agreement, Party A may at its own cost, assign its rights and obligations under the Agreement, in whole or in part (but in increments no less than the entire trade confirmation), (1) to any Affiliate of Holdings effective upon delivery to Party B of the executed guarantee by Holdings, in favor of Party B, of the obligations of such Affiliate, such guarantee to be identical to the guarantee then in effect of the obligations of the transferor (except for the name, address and the jurisdiction of the guarantor so long as the jurisdiction has a tax treaty in place with the United States that precludes the withholding or deduction of any amount payable to Party B by the guarantor) or that otherwise satisfies the Rating Agency Condition, or (2) to any entity with the same or higher Long-term Rating (as determined by S&P) as Holdings at the time of such transfer, in each case provided that (A) the transferee is an Eligible Replacement and (B) in the case of a transfer in part substantially all of Party A’s obligations under this Agreement are transferred to the transferee, as determined by Party B acting in a commercially reasonable manner. In the event of such a transfer, this Agreement shall be replaced with an Agreement having identical terms (except for the name, address and the jurisdiction of the transferee so long as the jurisdiction has a tax treaty in place with the United States that precludes the withholding or deduction of any amount payable to Party B by the transferee) or with an agreement that otherwise satisfies the Rating Agency Condition. Notwithstanding the foregoing, any assignment hereunder shall not be permitted if, as a result thereof, a payment becomes subject to any deduction or withholding for or on account of any tax which would not have arisen had such assignment not been effected or such transfer would cause an Event of Default or Termination event to occur. Party A will provide prior written notice to each Rating Agency of any such assignment. If an entity has made a Firm Offer (which remains capable of becoming legally binding upon acceptance) to be the transferee of a transfer, Party B shall at Party A’s written request take any reasonable steps required to be taken by it to effect such transfer.

All collateral posted by Party A shall be returned to Party A immediately upon the assumption by a substitute counterparty of all of Party A’s obligations hereunder.

(j) Notices. For the purposes of subsections (iii) and (v) of Section 12(a), the date of receipt shall be presumed to be the date sent if sent on a Local Business Day or, if not sent on a Local Business Day, the date of receipt shall be presumed to be the first Local Business Day following the date sent.

(k) Service of Process. The third sentence of Section 13(c) shall be amended by adding the following language at the end thereof: "if permitted in the jurisdiction where the proceedings are initiated and in the jurisdiction where service is to be made."

(l) Arms’-Length Transaction. Party B acknowledges and agrees that Party A has had and will have no involvement in and, accordingly Party A accepts no responsibility for: (i) the establishment, structure, or choice of assets of Party B; (ii) the selection of any person performing services for or acting on behalf of Party B; (iii) the selection of Party A as the Counterparty; (iv) the terms of the Certificates; (v) the preparation of or passing on the disclosure and other information contained in any offering circular or similar document for the Certificates, the Trust Agreement, or any other agreements or documents used by Party B or any other party in connection with the marketing and sale of the Certificates; (vi) the ongoing operations and administration of Party B, including the furnishing of any information to Party B which is not specifically required under this Agreement; or (vii) any other aspect of Party B’s existence.

(m) Amendments.Section 9(b) is hereby amended by adding at the end thereof the sentence: “In addition, any amendment or modification of this Agreement shall be subject to the Rating Agency Condition.”

(n) Amendments to Trust Agreement. Party B or the Depositor on its behalf will provide Party A with at least ten (10) Business Days prior written notice of and obtain Party A’s prior written consent to any proposed amendment, supplement or modification to its Trust Agreement that could have a material, adverse effect on Party A or otherwise give Party A the right to terminate any Transactions pursuant to the provisions of Part 1(i)(C) above.

(o) No Bankruptcy Petition. Party A agrees that it will not, for a period of one year and one day (or any such longer period required in the appropriate jurisdiction), after the payment in full of all of the Certificates issued under the Trust Agreement, acquiesce, petition, invoke or otherwise cause Party B to invoke the process of any governmental authority for the purpose of commencing or sustaining a case (whether voluntary or involuntary) against Party B under any bankruptcy, insolvency or similar law or appointing a receiver, liquidator, assignee, trustee, custodian, sequestrator or other similar official of Party B or any substantial part of its property or ordering the winding-up or liquidation of the affairs of Party B; provided, that this provision shall not restrict or prohibit Party A from joining any other person, including, without limitation, the Trustee, in any bankruptcy, reorganization, arrangement, insolvency, moratorium or liquidation proceedings already commenced or other analogous proceedings already commenced under applicable law. This provision shall survive the termination of this Agreement.

(p) Party B Agent. Party A acknowledges that Party B has appointed the Trustee as its agent under the Trust Agreement to carry out certain functions on behalf of Party B, and that the Trustee shall be entitled to give notices and to perform and satisfy the obligations of Party B hereunder on behalf of Party B.

(q) Limited Recourse. The liability of Party B under this Agreement is limited in recourse to the assets of the Trust Fund and to distributions of interest proceeds and principal proceeds thereon applied in accordance with the terms of the Trust Agreement. Upon application and exhaustion of all of the assets of the Trust Fund (and proceeds thereof) in accordance with the Trust Agreement, Party A shall not be entitled to take any further steps against Party B to recover any sums due but still unpaid hereunder or thereunder, all claims in respect of which shall be extinguished. Notwithstanding the foregoing or anything herein to the contrary, Party A shall not be precluded from declaring an Event of Default or from exercising any other right or remedy as set forth in this Agreement or the Trust Agreement.

(r) Additional Definitions.Section 14 is hereby amended by adding the following definitions in their appropriate alphabetical order:

“Collateralization Event” shall have the meaning given in Part 5(f)(i) above.

“Eligible Guarantee” shall have the meaning given in Part 5(f)(ii) above.

“Eligible Replacement” means an entity (A) that satisfies the definition of Hedge Counterparty Ratings Requirement, set forth in Part 5(f)(ii) above or (B) whose present and future obligations owing to Party B are guaranteed pursuant to an Eligible Guarantee provided by a guarantor which satisfies paragraph (b) of the definition of Hedge Counterparty Ratings Requirement.

“Financial Institution” means a bank, broker-dealer, structured investment vehicle, derivatives product company or insurance company or Lehman Brothers Holdings Inc. or otherwise determined to be a Financial Institution by S&P.

“Firm Offer” means an offer which, when made, was considered by the Reference Market-maker that provided such offer to be capable of and intended to become legally binding if accepted.

“Fitch” means Fitch, Inc.

“Fitch Collateralization Event” shall have the meaning given in Part 5(f)(i) above.

“Fitch Ratings Event” shall have the meaning given in Part 5(f)(iii) above.

“Hedge Counterparty Ratings Requirement” shall have the meaning given in Part 5(f)(ii) above.

“Long-term Rating” means the rating of the unsecured, unguaranteed and otherwise unsupported long-term senior debt-obligation.

“Rating Agency” shall mean each of S&P and Fitch.

“Rating Agency Condition” means, with respect to any particular proposed act or omission to act hereunder, that the party acting or failing to act has consulted with each applicable Rating Agency then providing a rating of any Class of Certificates and has received from each Rating Agency a written confirmation that the proposed action or inaction would not cause such Rating Agency to downgrade or withdraw its then-current rating of any Class of Certificates.

“Ratings Event” shall have the meaning given in Part 5(f)(iii) above.

“Relevant Entity” shall have the meaning given in Part 5(f)(i) above.

“S&P” means Standard & Poor’s Ratings Services, a division of McGraw-Hill, Inc.

“S&P Collateralization Event” shall have the meaning given in Part 5(f)(i) above.

“S&P Ratings Event” shall have the meaning given in Part 5(f)(iii) above.

“Short-term Rating” means the rating of the unsecured, unguaranteed and otherwise unsupported short-term debt-obligation.

“Stockholders' Equity” means with respect to an entity, at any time, the sum at such time of (i) its capital stock (including preferred stock) outstanding, taken at par value, (ii) its capital surplus and (iii) its retained earnings, minus (iv) treasury stock, each to be determined in accordance with generally accepted accounting principles consistently applied.

“Trust Agreement” shall have the meaning given on the first page of this Schedule.

“USD” means United States Dollars.

All terms used herein and not otherwise defined are given their meaning in the Trust Agreement.

(s) Waiver of Trial By Jury. Insofar as is permitted by law, each party irrevocably waives any and all rights to trial by jury in any legal proceeding in connection with this agreement or any transaction, and acknowledges that this waiver is a material inducement to the other party’s entering into this agreement and each transaction hereunder.

(t) Severability. If any term, provision, covenant or condition of this Agreement, or the application thereof to any party or circumstance, shall be held to be invalid or unenforceable (in whole or in part) for any reason, the remaining terms, provisions, covenants and conditions hereof shall continue in full force and effect as if this Agreement had been executed with the invalid or unenforceable portion eliminated, so long as this Agreement as so modified continues to express, without material change, the original intentions of the parties as to the subject matter of this Agreement and the deletion of such portion of this Agreement will not substantially impair the respective benefits or expectations of the parties to this Agreement. It shall in particular be understood that this provision shall not affect the “single agreement” concept of Section 1(c) of the Master Agreement

(u) Guarantee Demand. If Party A fails to pay punctually any amounts under this Agreement, to the extent that Party B desires to exercise its rights under the Guarantee, the Trustee shall on behalf of Party B, make the written demand for payment pursuant to the Guarantee.

(v) Trustee Capacity. It is expressly understood and agreed by the parties hereto that (i) this Agreement is executed and delivered by Trustee not individually or personally but solely as Trustee of Supplemental Interest Trust, in the exercise of the powers and authority conferred and vested in it, (ii) each of the representations, undertakings and agreements herein made on the party of the Supplemental Interest Trust is made and intended not as personal representations, undertakings and agreements by Trustee but is made and intended for the purpose of binding only Supplemental Interest Trust, (iii) nothing herein contained shall be construed as creating any liability on the party of Trustee, individually or personally, to perform any covenant either expressed or implied contained herein, all such liability, if any, being expressly waived by the parties hereto and by any Person claiming by, through or under the parties hereto and (iv) under no circumstances shall Trustee be personally liable for the payment of any indebtedness or expenses of the Trust or be liable for the breach of failure of any obligation, representation, warranty or covenant made or undertaken by Supplemental Interest Trust under this Agreement.

(x) Other criteria. Notwithstanding, and without prejudice to, any other provision herein, in the event that S&P has other published criteria with respect to the downgrade of a counterparty in effect at the time of such a downgrade of Party A, Party A shall be entitled to elect to take such other measures specified in such published criteria subject to satisfaction of the Rating Agency Condition by S&P.

(y) Notifications. Notwithstanding any other provision of this Agreement, no Early Termination Date shall be effectively designated by Party B unless each Rating Agency has been given prior written notice of such designation.

(z) Escrow Payments. If (whether by reason of the time difference between the cities in which payments are to be made or otherwise), it is not possible for simultaneous payments to be made on any date on which both parties are required to make payments hereunder, either party may, at its option and in its sole discretion, notify the other party that payments on that date are to be made in escrow. In this case, deposit of the payment due earlier on that date shall be made by 2:00 p.m. (local time at the place for the earlier payment) on that date with an escrow agent selected by the notifying party, accompanied by irrevocable payment instructions (1) to release the deposited payment to the intended recipient upon receipt by the escrow agent of the required deposit of the corresponding payment from the other party on the same date accompanied by irrevocable payment instructions to the same effect or (2) if the required deposit of the corresponding payment is not made on that same date, to return the payment deposited to the party that paid it into escrow. The party that elects to have payments made in escrow shall pay all costs of the escrow arrangements and shall cause those arrangements to provide that the intended recipient of the payment due to be deposited first shall be entitled to interest on that deposited payment for each day in the period of its deposit at the rate offered by the escrow agent for that day for overnight deposits in the relevant currency in the office where it holds that deposited payment (at 11:00 a.m. local time on that day) if that payment is not released by 5:00 p.m. local time on the date it is deposited for any reason, other than the intended recipient’s failure to make the escrow deposit it is required to make hereunder in a timely fashion.

(aa) Recording of Conversations.Each party consents to the recording of telephone conversations between trading, marketing and other relevant personnel of the parties in connection with this Agreement or any potential Transaction. Promptly upon the request by a party, the other party will provide a copy of such recording to the party making the request.

(bb) Section 1(c). For purposes of Section 1(c) of the Agreement, the Transaction evidenced by the Confirmation with Reference ID: 3558855 dated January 4, 2008 between Party A and Party B, as amended from time to time, shall be the only Transaction under the Agreement.

The parties executing this Schedule have executed the Master Agreement and have agreed as to the contents of this Schedule.

LEHMAN BROTHERS SPECIAL FINANCING INC.	WELLS FARGO BANK, N.A., NOT IN ITS INDIVIDUAL CAPACITY BUT SOLELY AS TRUSTEE OF THE SUPPLEMENTAL INTEREST TRUST, FOR BNC MORTGAGE LOAN TRUST MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 2007-4
Party A	Party B
/s/ Scott Sefton	/s/ Martin Reed
Name: Scott Sefton	Name: Martin Reed
Title: Vice President	Title: Vice President
Date: 1/8/08	Date: 1/8/2008

LEHMAN BROTHERS

EXHIBIT A to Schedule

GUARANTEE OF LEHMAN BROTHERS HOLDINGS INC.

LEHMAN BROTHERS SPECIAL FINANCING INC. (“Party A”) and SUPPLEMENTAL INTEREST TRUST, BNC MORTGAGE LOAN TRUST MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 2007-4 (“Party B”) have entered into a Master Agreement dated as of January 4, 2008, as amended from time to time (the “Master Agreement”), pursuant to which Party A and Party B have entered and/or anticipate entering into one or more transactions (each a “Transaction”), the Confirmation of each of which supplements, forms part of, and will be read and construed as one with, the Master Agreement (collectively referred to as the “Agreement”). This Guarantee is a Credit Support Document as contemplated in the Agreement. For value received, and in consideration of the financial accommodation accorded to Party A by Party B under the Agreement, LEHMAN BROTHERS HOLDINGS INC., a corporation organized and existing under the laws of the State of Delaware (“Guarantor”), hereby agrees to the following:

(a)Guarantor hereby unconditionally guarantees to Party B the due and punctual payment of all amounts payable by Party A in connection with each Transaction when and as Party A’s obligations thereunder shall become due and payable in accordance with the terms of the Agreement (whether at maturity, by acceleration or otherwise). Guarantor hereby agrees, upon written demand by Party B, to pay or cause to be paid any such amounts punctually when and as the same shall become due and payable.

(b)Guarantor hereby agrees that its obligations under this Guarantee constitute a guarantee of payment when due and not of collection.

(c)Guarantor hereby agrees that its obligations under this Guarantee shall be unconditional, irrespective of the validity, regularity or enforceability of any obligation of Party A under the Agreement , the absence of any action to enforce Party A’s obligations under the Agreement, any waiver or consent by Party B with respect to any provisions thereof, the entry by Party A and Party B into any amendments to the Agreement, additional Transactions under the Agreement or any other circumstance which might otherwise constitute a legal or equitable discharge or defense of a guarantor (excluding the defense of payment or statute of limitations, neither of which is waived) provided, however, that Guarantor shall be entitled to exercise any right that Party A could have exercised under the Agreement to cure any default in respect of its obligations under the Agreement or to setoff, counterclaim or withhold payment with respect to any Event of Default or Potential Event of Default, but only to the extent such right is provided to Party A under the Agreement. The Guarantor acknowledges that Party A and Party B may from time to time enter into one or more Transactions pursuant to the Agreement and agrees that the obligations of the Guarantor under this Guarantee will upon the execution of any such Transaction by Party A and Party B extend to all such Transactions without the taking of further action by the Guarantor.

(d)This Guarantee shall remain in full force and effect until receipt by Party B of a written notice of termination from Guarantor . Termination of this Guarantee shall not affect Guarantor’s liability hereunder as to obligations incurred or arising out of Transactions entered into prior to the termination hereof.

(e)Guarantor further agrees that this Guarantee shall continue to be effective or be reinstated, as the case may be, if at any time, payment, or any part thereof, of any obligation or interest thereon is rescinded or must otherwise be restored by Party B upon an Event of Default as set forth in Section 5(a)(vii) of the Master Agreement affecting Party A or Guarantor.

(f)Guarantor hereby waives (i) promptness, diligence, presentment, demand of payment, protest, order and, except as set forth in paragraph (a) hereof, notice of any kind in connection with the Agreement and this Guarantee, or (ii) any requirement that Party B exhaust any right to take any action against Party A or any other person prior to or contemporaneously with proceeding to exercise any right against Guarantor under this Guarantee.

(g)Guarantor shall have no right of subrogation with respect to any payments made under this Guarantee until all obligations of the Guaranteed Party under the Agreement are paid in full.

(h)Guarantor represents and warrants (which representations and warranties shall be deemed to have been made by Guarantor on the date of each Transaction) that:

LEHMAN BROTHERS HOLDINGS INC.

745 SEVENTH AVENUE, NEW YORK, NEW YORK 10019

LEHMAN BROTHERS

i.Guarantor is a corporation duly incorporated, validly existing and in good standing under the laws of Delaware;

ii.Guarantor has the legal capacity and the legal right to execute and deliver this Guarantee and to perform Guarantor’s obligations hereunder;

iii.no consent or authorization of, filing with, or other act by or in respect of, any governmental authority and no consent of any other person (including, without limitation, any creditor of Guarantor) is required in connection with the execution, delivery, performance, validity or enforceability of this Guarantee;

iv.this Guarantee has been duly executed and delivered by Guarantor and constitutes a legal, valid and binding obligation of Guarantor enforceable in accordance with its terms, except as enforceability may be limited by bankruptcy, insolvency, reorganization, moratorium or other similar laws; and

v.the execution, delivery and performance of this Guarantee will not violate any provision of the certificate of incorporation, by laws or other organizational documents of Guarantor, or any law, treaty, rule or regulation or determination of an arbitrator, a court or other governmental authority, applicable to or binding upon Guarantor or any of its property or to which Guarantor or any of its property is subject.

(i)Any provision of this Guarantee which is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof, and any such prohibition or unenforceability in any jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction.

(j)No single or partial exercise of any right, power or privilege hereunder shall preclude any other or further exercise thereof or the exercise of any other right, power or privilege, and no waiver by Party B of any right or remedy hereunder on any one occasion shall be construed as a bar to any right or remedy which Party B would otherwise have on any future occasion. No failure to exercise, nor any delay in exercising, any right, power or privilege hereunder shall operate as a waiver thereof. The rights and remedies herein provided are cumulative, may be exercised singly or concurrently and are not exclusive of any other rights or remedies provided by law.

(k)If any term, provision, covenant, or condition of this Guarantee, or the application thereof to any party or circumstance, shall be held to be illegal, invalid or unenforceable (in whole or in part) for any reason, the remaining terms, provisions, covenants and conditions hereof shall continue in full force and effect as if this Guarantee had been executed with the illegal, invalid or unenforceable portion eliminated, so long as this Guarantee as so modified continues to express, without material change, the original intentions of the parties as to the subject matter of this Guarantee and the deletion of such portion of this Guarantee will not substantially impair the respective benefits or expectations of the parties to this Guarantee.

This Guarantee shall be governed by and construed in accordance with the laws of the State of New York without regard to conflicts of laws principles. All capitalized terms not defined in this Guarantee, but defined in the Agreement, shall have the meanings assigned thereto in the Agreement.

LEHMAN BROTHERS HOLDINGS INC.

745 SEVENTH AVENUE, NEW YORK, NEW YORK 10019

LEHMAN BROTHERS

IN WITNESS WHEREOF, Guarantor has caused this Guarantee to be executed by its duly authorized officer as of the date of the Agreement.

LEHMAN BROTHERS HOLDINGS INC.

By: /s/ Michael Hitzmann                              

Name:Michael Hitzmann

Title:Authorized Signatory

Date:1/8/2008

LEHMAN BROTHERS HOLDINGS INC.

745 SEVENTH AVENUE, NEW YORK, NEW YORK 10019

EXHIBIT B to Schedule

[Form of Opinion of Counsel for Party B]

[Date]

Lehman Brothers Special Financing Inc.

c/o Lehman Brothers Inc.

745 Seventh Avenue, 19^th Floor

New York, New York 10019

USA

Ladies and Gentlemen:

I have acted as counsel to [Counterparty], a [cp jurisdiction] corporation (“Party B”), and am familiar with matters pertaining to the execution and delivery of the Master Agreement dated as of [date] between Party B and Lehman Brothers Special Financing Inc. (“Party A”) and all Transactions thereunder (“Master Agreement”).

In connection with this opinion, I have examined, or have had examined on my behalf, an executed copy of the Master Agreement, certificates and statements of public officials and officers of Party B and such other agreements, instruments, documents and records as I have deemed necessary or appropriate for the purposes of this opinion.

Based on the foregoing but subject to the assumptions, exceptions, qualifications and limitations hereinafter expressed, I am of the opinion that:

1. Party B is a [entity type] duly incorporated, validly existing and in good standing under the laws of the State of [cp jurisdiction].

2. The execution, delivery and performance of the Master Agreement, by or on behalf of Party B, are within its corporate power, have been duly authorized by all corporate action and do not conflict with any provision of its certificate of incorporation or by-laws.

3. The Master Agreement, has been duly executed and delivered by Party B and constitutes a legal, valid and binding obligation, enforceable against it in accordance with its terms.

4. To the best of my knowledge no consent, authorization, license or approval of or registration or declaration with, any U.S. federal or state governmental authority is required in connection with the execution, delivery and performance of the Master Agreement by Party B.

The foregoing opinions are subject to the following assumptions, exceptions, qualifications and limitations:

A.My opinion in paragraph 3 above is subject to the effect of any bankruptcy, insolvency, reorganization, moratorium or similar laws affecting the enforcement of creditors rights generally (including, without limitation, the effect of statutory or other laws regarding fraudulent or other similar transfers) and general principles of equity, regardless of whether enforceability is considered in a proceeding in equity or at law.

B.I am a member of the Bar of the State of [licensed State] and render no opinion on the laws of any jurisdiction other than the laws of the State of [cp jurisdiction], the federal laws of the United States of America and the General Corporation Law of the State of [cp jurisdiction].

C.My opinions are limited to the present laws and to the facts as they presently exist. I assume no obligation to revise or supplement this opinion should the present laws of the jurisdictions referred to in paragraph B above be changed by legislative action, judicial decision or otherwise.

D.This letter is rendered to you in connection with the Master Agreement and the Guarantee and the transactions related thereto and may not be relied upon by any other person or by you in any other context or for any other purpose. This letter may not be quoted in whole or in part, nor may copies thereof be furnished or delivered to any other person, without the prior written consent of Party B, except that you may furnish copies hereof (i) to your independent auditors and attorneys, (ii) to any United States, state or local authority having jurisdiction over you or over Party B, (iii) pursuant to the order of any legal process of any court of competent jurisdiction or any governmental agency, and (iv) in connection with any legal action arising out of the Master Agreement.

E.I have assumed with your permission (i) the genuineness of all signatures by each party other than Party B, (ii) the authenticity of documents submitted to me as originals and the conformity to authentic original documents of all documents submitted to me as copies, and (iii) the due execution and delivery, pursuant to due authorization, of the Master Agreement by each party other than Party B.

Very truly yours,

EXHIBIT C to Schedule

[Form of Opinion of Counsel for

Lehman Brothers Special Financing Inc. and

Lehman Brothers Holdings Inc.]

[date]

[COUNTERPARTY NAME]

[COUNTERPARTY ADDRESS]

Ladies and Gentlemen:

I have acted as counsel to Lehman Brothers Special Financing Inc., a Delaware corporation (“Party A”), and Lehman Brothers Holdings Inc., a Delaware corporation (“Guarantor”), and am familiar with matters pertaining to the execution and delivery of the Master Agreement (the “Master Agreement”) dated as of [date] between Party A and [counterparty]and the guarantee of Guarantor (the “Guarantee”) delivered in connection with the Master Agreement.

In connection with this opinion, I have examined, or have had examined on my behalf, an executed copy of the Master Agreement and the Guarantee, certificates and statements of public officials and officers of Party  A and Guarantor and such other agreements, instruments, documents and records as I have deemed necessary or appropriate for the purposes of this opinion.

Except as expressly set forth herein, no independent investigation (including, without limitation, conducting any review, search or investigation of any public files, records or dockets) has been undertaken to determine the existence or absence of the facts that are material to my opinions, and no inference as to my knowledge concerning such facts should be made.

When used herein the phrase “to my knowledge” means to my actual knowledge without independent investigation.

References in this letter to “Applicable Laws” are to those laws, rules and regulations of the State of New York which, in my experience, are normally applicable to transactions of the type contemplated by the Master Agreement and the Guarantee. References in this letter to “Governmental Authorities” are to executive, legislative, judicial, administrative or regulatory bodies of the State of New York. References in this letter to “Governmental Approval” are to any consent, approval, license, authorization or validation of, or filing, recording or registration with, any Governmental Authority pursuant to Applicable Laws.

Based on the foregoing but subject to the assumptions, exceptions, qualifications and limitations hereinafter expressed, I am of the opinion that:

1. Based on a certificate of the Secretary of State of the State of Delaware dated as of [December 19, 2006], each of Party A and Guarantor is a corporation duly incorporated, validly existing and in good standing under the laws of the State of Delaware.

2. The execution, delivery and performance of the Master Agreement, in the case of Party  A, and the Guarantee, in the case of Guarantor, are within its corporate power, have been duly authorized by all necessary corporate action and do not conflict with any provision of its certificate of incorporation or by-laws.

3. The Master Agreement, in the case of Party A, and the Guarantee, in the case of Guarantor, have been duly executed and delivered and eachconstitutes a legal, valid and binding obligation under Applicable Laws, enforceable against it under Applicable Laws in accordance with its respective terms

4. To my knowledge, no Governmental Approval is required in connection with the execution, delivery and performance of the Master Agreement in the case of Party A, or the Guarantee, in the case of Guarantor, except those that have been obtained and, to my knowledge, are in effect.

The foregoing opinions are subject to the following assumptions, exceptions, qualifications and limitations:

A. My opinion in paragraph 3 above is subject to: (i) bankruptcy, insolvency, reorganization, receivership, moratorium or similar laws affecting creditors’ rights generally (including, without limitation, the effect of statutory or other laws regarding fraudulent or other similar transfersor conveyances); (ii) general principles of equity, regardless of whether enforceability is considered in a proceeding in equity or at law; and (iii) laws and considerations of public policy, including where clauses (i) through (iii) above may limit the enforceability of provisions (a) regarding the termination and close out methodology under the Master Agreement, including but not limited to Section 6(e) thereof, (b) regarding indemnification and contribution rights and obligations, (c) regarding the waiver or limitation of rights to trial by jury, oral amendments to written agreements or rights of setoff, (d) relating to submission to jurisdiction, venue or service of process, and (e) purporting to prohibit or restrict, or require the consent of the “account debtor” (as defined in Section 9-102 of the Uniform Commercial Code as in effect in the State of New York (the “NYUCC” )) for, the creation, perfection or enforcement of a security interest in “accounts” or “general intangibles” (in each case, as defined in Section 9-102 of the NYUCC).

B.I am a member of the Bar of the [State of New York] [Commonwealth of Massachusetts] and render no opinion on any laws other than the laws of the State of New York and the General Corporation Law of the State of Delaware. Except as described, I have not examined, or had examined on my behalf, and I do not express any opinion with respect to, Delaware law.

C.My opinions are limited to the present laws and to the facts as they presently exist, and no opinion is to be inferred or implied beyond the matters expressly so stated. I assume no obligation to revise or supplement this opinion should the present laws of the jurisdictions referred to in paragraph B above be changed by legislative action, judicial decision or otherwise.

D.This letter is rendered solely to you solely for your benefit in connection with the Master Agreement and the Guarantee and the transactions related thereto and may not be relied upon by any other person, entity or agency or by you in any other context or for any other purpose. This letter may not be circulated, used or quoted in whole or in part, nor may copies hereof be furnished or delivered to any other person, without the prior written consent of Lehman Brothers Holdings Inc., except that you may furnish copies hereof (i)  to your independent auditors and attorneys, (ii)  to any United States, state or local authority having jurisdiction over you, (iii)  pursuant to the order of any court of competent jurisdiction or any governmental agency and (iv)  in connection with any legal action arising out of the Master Agreement or the Guarantee.

E.I have assumed with your permission (i)  the genuineness of all signatures by each party other than Party  A or Guarantor, (ii)  the authenticity of documents submitted to me as originals and the conformity to authentic original documents of all documents submitted to me as copies, (iii) the accuracy of the matters set forth in the documents, agreements and instruments I reviewed, (iv) that each party other than Party A and Guarantor is duly organized, validly existing and in good standing under the laws of its jurisdiction of organization, (v) the due execution and delivery, pursuant to due authorization, of the Master Agreement by each party other than Party A and (vi) that the Master Agreement is the legal, valid, binding and enforceable obligation of each party other than Party A, enforceable against each such party in accordance with its terms.

The foregoing opinions are given on the express understanding that the undersigned is an officer of Lehman Brothers Inc. and shall in no event incur any personal or other liability in connection with said opinions. By accepting and relying upon this opinion, each addressee hereof (i) acknowledges and agrees that the undersigned shall have no personal or other liability in connection herewith and (ii) agrees to not assert or raise any such claim against the undersigned in any proceeding or in any manner otherwise.

Very truly yours,

ISDAÒ

International Swaps and Derivatives Association, Inc.

CREDIT SUPPORT ANNEX

to the Schedule to the

Master Agreement

dated as of January 4, 2008

between

LEHMAN BROTHERS SPECIAL FINANCING INC.	WELLS FARGO BANK, N.A., NOT IN ITS INDIVIDUAL CAPACITY BUT SOLELY AS TRUSTEE OF THE SUPPLEMENTAL INTEREST TRUST, FOR BNC MORTGAGE LOAN TRUST MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 2007-4
Party A	Party B

This Annex supplements, forms part of, and is subject to, the above-referenced Agreement, is part of its Schedule and is a Credit Support Document under this Agreement with respect to each party.

Accordingly, the parties agree as follows:

Paragraph 1. Interpretation

(a)Definitions and Inconsistency. Capitalized terms not otherwise defined herein or elsewhere in this Agreement have the meanings specified pursuant to Paragraph 12, and all references in this Annex to Paragraphs are to Paragraphs of this Annex. In the event of any inconsistency between this Annex and the other provisions of this Schedule, this Annex will prevail and in the event of any inconsistency between Paragraph 13 and the other provisions of this Annex, Paragraph 13 will prevail.

(b)Secured Party and Pledgor. All references in this Annex to the “Secured Party” will be to either party when acting in that capacity and all corresponding references to the “Pledgor” will be to the other party when acting in that capacity; provided, however, that if Other Posted Support is held by a party to this Annex, all references herein to that party as the Secured Party with respect to that Other Posted Support will be to that party as the beneficiary thereof and will not subject that support or that party as the beneficiary thereof to provisions of law generally relating to security interests and secured parties.

Paragraph 2. Security Interest

Each party, as the Pledgor, hereby pledges to the other party, as the Secured Party, as security for its Obligations, and grants to the Secured Party a first priority continuing security interest in, lien on and right of Set-off against all Posted Collateral Transferred to or received by the Secured Party hereunder. Upon the Transfer by the Secured Party to the Pledgor of Posted Collateral, the security interest and lien granted hereunder on that Posted Collateral will be released immediately and, to the extent possible, without further action by either party.

EXECUTION

Paragraph 3. Credit Support Obligations

(a)Delivery Amount. Subject to Paragraphs 4 and 5, upon a demand made by the Secured Party on or promptly following a Valuation Date, if the Delivery Amount for that Valuation Date equals or exceeds the Pledgor’s Minimum Transfer Amount, then the Pledgor will Transfer to the Secured Party Eligible Credit Support having a Value as of the date of Transfer at least equal to the applicable Delivery Amount (rounded pursuant to Paragraph 13). Unless otherwise specified in Paragraph 13, the “Delivery Amount” applicable to the Pledgor for any Valuation Date will equal the amount by which:

(i)the Credit Support Amount

exceeds

(ii)the Value as of that Valuation Date of all Posted Credit Support held by the Secured Party.

(b)Return Amount. Subject to Paragraphs 4 and 5, upon a demand made by the Pledgor on or promptly following a Valuation Date, if the Return Amount for that Valuation Date equals or exceeds the Secured Party’s Minimum Transfer Amount, then the Secured Party will Transfer to the Pledgor Posted Credit Support specified by the Pledgor in that demand having a Value as of the date of Transfer as close as practicable to the applicable Return Amount (rounded pursuant to Paragraph 13). Unless otherwise specified in Paragraph 13, the “Return Amount” applicable to the Secured Party for any Valuation Date will equal the amount by which:

(i)the Value as of that Valuation Date of all Posted Credit Support held by the Secured Party exceeds

(ii)the Credit Support Amount.

“Credit Support Amount” means, unless otherwise specified in Paragraph 13, for any Valuation Date (i) the Secured Party’s Exposure for that Valuation Date plus (ii) the aggregate of all Independent Amounts applicable to the Pledgor, if any, minus (iii) all Independent Amounts applicable to the Secured Party, if any, minus (iv) the Pledgor’s Threshold; provided, however, that the Credit Support Amount will be deemed to be zero whenever the calculation of Credit Support Amount yields a number less than zero.

Paragraph 4. Conditions Precedent, Transfer Timing, Calculations and Substitutions

(a)Conditions Precedent. Each Transfer obligation of the Pledgor under Paragraphs 3 and 5 and of the Secured Party under Paragraphs 3, 4(d)(ii), 5 and 6(d) is subject to the conditions precedent that:

(i)no Event of Default, Potential Event of Default or Specified Condition has occurred and is continuing with respect to the other party; and

(ii)no Early Termination Date for which any unsatisfied payment obligations exist has occurred or been designated as the result of an Event of Default or Specified Condition with respect to the other party.

(b)Transfer Timing. Subject to Paragraphs 4(a) and 5 and unless otherwise specified, if a demand for the Transfer of Eligible Credit Support or Posted Credit Support is made by the Notification Time, then the relevant Transfer will be made not later than the close of business on the next Local Business Day; if a demand is made after the Notification Time, then the relevant Transfer will be made not later than the close of business on the second Local Business Day thereafter.

(c)Calculations. All calculations of Value and Exposure for purposes of Paragraphs 3 and 6(d) will be made by the Valuation Agent as of the Valuation Time. The Valuation Agent will notify each party (or the other party, if the Valuation Agent is a party) of its calculations not later than the Notification Time on the Local Business Day following the applicable Valuation Date (or in the case of Paragraph 6(d), following the date of calculation).

Substitutions.

(i)Unless otherwise specified in Paragraph 13, upon notice to the Secured Party specifying the items of Posted Credit Support to be exchanged, the Pledgor may, on any Local Business Day, Transfer to the Secured Party substitute Eligible Credit Support (the “Substitute Credit Support”); and

(ii)subject to Paragraph 4(a), the Secured Party will Transfer to the Pledgor the items of Posted Credit Support specified by the Pledgor in its notice not later than the Local Business Day following the date on which the Secured Party receives the Substitute Credit Support, unless otherwise specified in Paragraph 13 (the “Substitution Date”); provided, however, that the Secured Party will only be obligated to Transfer Posted Credit Support with a Value as of the date of Transfer of that Posted Credit Support equal to the Value as of that date of the Substitute Credit Support.

Paragraph 5. Dispute Resolution

If a party (a “Disputing Party”) disputes (I) the Valuation Agent’s calculation of a Delivery Amount or a Return Amount or (II) the Value of any Transfer of Eligible Credit Support or Posted Credit Support, then (1) the Disputing Party will notify the other party and the Valuation Agent (if the Valuation Agent is not the other party) not later than the close of business on the Local Business Day following (X) the date that the demand is made under Paragraph 3 in the case of (I) above or (Y) the date of Transfer in the case of (II) above, (2) subject to Paragraph 4(a), the appropriate party will Transfer the undisputed amount to the other party not later than the close of business on the Local Business Day following (X) the date that the demand is made under Paragraph 3 in the case of (I) above or (Y) the date of Transfer in the case of (II) above, (3) the parties will consult with each other in an attempt to resolve the dispute and (4) if they fail to resolve the dispute by the Resolution Time, then:

(i)In the case of a dispute involving a Delivery Amount or Return Amount, unless otherwise specified in Paragraph 13, the Valuation Agent will recalculate the Exposure and the Value as of the Recalculation Date by:

(A)utilizing any calculations of Exposure for the Transactions (or Swap Transactions) that the parties have agreed are not in dispute;

(B)calculating the Exposure for the Transactions (or Swap Transactions) in dispute by seeking four actual quotations at mid-market from Reference Market-makers for purposes of calculating Market Quotation, and taking the arithmetic average of those obtained; provided that if four quotations are not available for a particular Transaction (or Swap Transaction), then fewer than four quotations may be used for that Transaction (or Swap Transaction); and if no quotations are available for a particular Transaction (or Swap Transaction), then the Valuation Agent’s original calculations will be used for that Transaction (or Swap Transaction); and

(C)utilizing the procedures specified in Paragraph 13 for calculating the Value, if disputed, of Posted Credit Support.

(ii)In the case of a dispute involving the Value of any Transfer of Eligible Credit Support or Posted Credit Support, the Valuation Agent will recalculate the Value as of the date of Transfer pursuant to Paragraph 13.

Following a recalculation pursuant to this Paragraph, the Valuation Agent will notify each party (or the other party, if the Valuation Agent is a party) not later than the Notification Time on the Local Business Day following the Resolution Time. The appropriate party will, upon demand following that notice by the Valuation Agent or a resolution pursuant to (3) above and subject to Paragraphs 4(a) and 4(b), make the appropriate Transfer.

Paragraph 6. Holding and Using Posted Collateral

(a)Care of Posted Collateral. Without limiting the Secured Party’s rights under Paragraph 6(c), the Secured Party will exercise reasonable care to assure the safe custody of all Posted Collateral to the extent required by applicable law, and in any event the Secured Party will be deemed to have exercised reasonable care if it exercises at least the same degree of care as it would exercise with respect to its own property. Except as specified in the preceding sentence, the Secured Party will have no duty with respect to Posted Collateral, including, without limitation, any duty to collect any Distributions, or enforce or preserve any rights pertaining thereto.

(b)Eligibility to Hold Posted Collateral; Custodians.

(i)General. Subject to the satisfaction of any conditions specified in Paragraph 13 for holding Posted Collateral, the Secured Party will be entitled to hold Posted Collateral or to appoint an agent (a “Custodian”) to hold Posted Collateral for the Secured Party. Upon notice by the Secured Party to the Pledgor of the appointment of a Custodian, the Pledgor’s obligations to make any Transfer will be discharged by making the Transfer to that Custodian. The holding of Posted Collateral by a Custodian will be deemed to be the holding of that Posted Collateral by the Secured Party for which the Custodian is acting.

(ii)Failure to Satisfy Conditions. If the Secured Party or its Custodian fails to satisfy any conditions for holding Posted Collateral, then upon a demand made by the Pledgor, the Secured Party will, not later than five Local Business Days after the demand, Transfer or cause its Custodian to Transfer all Posted Collateral held by it to a Custodian that satisfies those conditions or to the Secured Party if it satisfies those conditions.

(iii)Liability. The Secured Party will be liable for the acts or omissions of its Custodian to the same extent that the Secured Party would be liable hereunder for its own acts or omissions.

(c)Use of Posted Collateral. Unless otherwise specified in Paragraph 13 and without limiting the rights and obligations of the parties under Paragraphs 3, 4(d)(ii), 5, 6(d) and 8, if the Secured Party is not a Defaulting Party or an Affected Party with respect to a Specified Condition and no Early Termination Date has occurred or been designated as the result of an Event of Default or Specified Condition with respect to the Secured Party, then the Secured Party will, notwithstanding Section 9-207 of the New York Uniform Commercial Code, have the right to:

(i)sell, pledge, rehypothecate, assign, invest, use, commingle or otherwise dispose of, or otherwise use in its business any Posted Collateral it holds, free from any claim or right of any nature whatsoever of the Pledgor, including any equity or right of redemption by the Pledgor; and

(ii)register any Posted Collateral in the name of the Secured Party, its Custodian or a nominee for either.

For purposes of the obligation to Transfer Eligible Credit Support or Posted Credit Support pursuant to Paragraphs 3 and 5 and any rights or remedies authorized under this Agreement, the Secured Party will be deemed to continue to hold all Posted Collateral and to receive Distributions made thereon, regardless of whether the Secured Party has exercised any rights with respect to any Posted Collateral pursuant to (i) or (ii) above.

(d)Distributions and Interest Amount.

(i)Distributions. Subject to Paragraph 4(a), if the Secured Party receives or is deemed to receive Distributions on a Local Business Day, it will Transfer to the Pledgor not later than the following Local Business Day any Distributions it receives or is deemed to receive to the extent that a Delivery Amount would not be created or increased by that Transfer, as calculated by the Valuation Agent (and the date of calculation will be deemed to be a Valuation Date for this purpose).

(ii)Interest Amount. Unless otherwise specified in Paragraph 13 and subject to Paragraph 4(a), in lieu of any interest, dividends or other amounts paid or deemed to have been paid with respect to Posted Collateral in the form of Cash (all of which may be retained by the Secured Party), the Secured Party will Transfer to the Pledgor at the times specified in Paragraph 13 the Interest Amount to the extent that a Delivery Amount would not be created or increased by that Transfer, as calculated by the Valuation Agent (and the date of calculation will be deemed to be a Valuation Date for this purpose). The Interest Amount or portion thereof not Transferred pursuant to this Paragraph will constitute Posted Collateral in the form of Cash and will be subject to the security interest granted under Paragraph 2.

Paragraph 7. Events of Default

For purposes of Section 5(a)(iii)(1) of this Agreement, an Event of Default will exist with respect to a party if:

(i)that party fails (or fails to cause its Custodian) to make, when due, any Transfer of Eligible Collateral, Posted Collateral or the Interest Amount, as applicable, required to be made by it and that failure continues for two Local Business Days after notice of that failure is given to that party;

(ii)that party fails to comply with any restriction or prohibition specified in this Annex with respect to any of the rights specified in Paragraph 6(c) and that failure continues for five Local Business Days after notice of that failure is given to that party; or

(iii)that party fails to comply with or perform any agreement or obligation other than those specified in Paragraphs 7(i) and 7(ii) and that failure continues for 30 days after notice of that failure is given to that party.

Paragraph 8. Certain Rights and Remedies

(a)Secured Party’s Rights and Remedies. If at any time (1) an Event of Default or Specified Condition with respect to the Pledgor has occurred and is continuing or (2) an Early Termination Date has occurred or been designated as the result of an Event of Default or Specified Condition with respect to the Pledgor, then, unless the Pledgor has paid in full all of its Obligations that are then due, the Secured Party may exercise one or more of the following rights and remedies:

(i)all rights and remedies available to a secured party under applicable law with respect to Posted Collateral held by the Secured Party;

(ii)any other rights and remedies available to the Secured Party under the terms of Other Posted Support, if any;

(iii)the right to Set-off any amounts payable by the Pledgor with respect to any Obligations against any Posted Collateral or the Cash equivalent of any Posted Collateral held by the Secured Party (or any obligation of the Secured Party to Transfer that Posted Collateral); and

(iv)the right to liquidate any Posted Collateral held by the Secured Party through one or more public or private sales or other dispositions with such notice, if any, as may be required under applicable law, free from any claim or right of any nature whatsoever of the Pledgor, including any equity or right of redemption by the Pledgor (with the Secured Party having the right to purchase any or all of the Posted Collateral to be sold) and to apply the proceeds (or the Cash equivalent thereof) from the liquidation of the Posted Collateral to any amounts payable by the Pledgor with respect to any Obligations in that order as the Secured Party may elect.

Each party acknowledges and agrees that Posted Collateral in the form of securities may decline speedily in value and is of a type customarily sold on a recognized market, and, accordingly, the Pledgor is not entitled to prior notice of any sale of that Posted Collateral by the Secured Party, except any notice that is required under applicable law and cannot be waived.

(b)Pledgor’s Rights and Remedies. If at any time an Early Termination Date has occurred or been designated as the result of an Event of Default or Specified Condition with respect to the Secured Party, then (except in the case of an Early Termination Date relating to less than all Transactions (or Swap Transactions) where the Secured Party has paid in full all of its obligations that are then due under Section 6(e) of this Agreement):

(i)the Pledgor may exercise all rights and remedies available to a pledgor under applicable law with respect to Posted Collateral held by the Secured Party;

(ii)the Pledgor may exercise any other rights and remedies available to the Pledgor under the terms of Other Posted Support, if any;

(iii)the Secured Party will be obligated immediately to Transfer all Posted Collateral and the Interest Amount to the Pledgor; and

(iv)to the extent that Posted Collateral or the Interest Amount is not so Transferred pursuant to (iii) above, the Pledgor may:

(A)Set-off any amounts payable by the Pledgor with respect to any Obligations against any Posted Collateral or the Cash equivalent of any Posted Collateral held by the Secured Party (or any obligation of the Secured Party to Transfer that Posted Collateral); and

(B)to the extent that the Pledgor does not Set-off under (iv)(A) above, withhold payment of any remaining amounts payable by the Pledgor with respect to any Obligations, up to the Value of any remaining Posted Collateral held by the Secured Party, until that Posted Collateral is Transferred to the Pledgor.

(c)Deficiencies and Excess Proceeds. The Secured Party will Transfer to the Pledgor any proceeds and Posted Credit Support remaining after liquidation, Set-off and/or application under Paragraphs 8(a) and 8(b) after satisfaction in full of all amounts payable by the Pledgor with respect to any Obligations; the Pledgor in all events will remain liable for any amounts remaining unpaid after any liquidation, Set-off and/or application under Paragraphs 8(a) and 8(b).

(d)Final Returns. When no amounts are or thereafter may become payable by the Pledgor with respect to any Obligations (except for any potential liability under Section 2(d) of this Agreement), the Secured Party will Transfer to the Pledgor all Posted Credit Support and the Interest Amount, if any.

Paragraph 9. Representations

Each party represents to the other party (which representations will be deemed to be repeated as of each date on which it, as the Pledgor, Transfers Eligible Collateral) that:

(i)it has the power to grant a security interest in and lien on any Eligible Collateral it Transfers as the Pledgor and has taken all necessary actions to authorize the granting of that security interest and lien;

(ii)it is the sole owner of or otherwise has the right to Transfer all Eligible Collateral it Transfers to the Secured Party hereunder, free and clear of any security interest, lien, encumbrance or other restrictions other than the security interest and lien granted under Paragraph 2,

(iii)upon the Transfer of any Eligible Collateral to the Secured Party under the terms of this Annex, the Secured Party will have a valid and perfected first priority security interest therein (assuming that any central clearing corporation or any third-party financial intermediary or other entity not within the control of the Pledgor involved in the Transfer of that Eligible Collateral gives the notices and takes the action required of it under applicable law for perfection of that interest); and

(iv)the performance by it of its obligations under this Annex will not result in the creation of any security interest, lien or other encumbrance on any Posted Collateral other than the security interest and lien granted under Paragraph 2.

Paragraph 10. Expenses

(a)General. Except as otherwise provided in Paragraphs 10(b) and 10(c), each party will pay its own costs and expenses in connection with performing its obligations under this Annex and neither party will be liable for any costs and expenses incurred by the other party in connection herewith.

(b)Posted Credit Support. The Pledgor will promptly pay when due all taxes, assessments or charges of any nature that are imposed with respect to Posted Credit Support held by the Secured Party upon becoming aware of the same, regardless of whether any portion of that Posted Credit Support is subsequently disposed of under Paragraph 6(c), except for those taxes, assessments and charges that result from the exercise of the Secured Party’s rights under Paragraph 6(c).

(c)Liquidation/Application of Posted Credit Support. All reasonable costs and expenses incurred by or on behalf of the Secured Party or the Pledgor in connection with the liquidation and/or application of any Posted Credit Support under Paragraph 8 will be payable, on demand and pursuant to the Expenses Section of this Agreement, by the Defaulting Party or, if there is no Defaulting Party, equally by the parties.

Paragraph 11. Miscellaneous

(a)Default Interest. A Secured Party that fails to make, when due, any Transfer of Posted Collateral or the Interest Amount will be obligated to pay the Pledgor (to the extent permitted under applicable law) an amount equal to interest at the Default Rate multiplied by the Value of the items of property that were required to be Transferred, from (and including) the date that Posted Collateral or Interest Amount was required to be Transferred to (but excluding) the date of Transfer of that Posted Collateral or Interest Amount. This interest will be calculated on the basis of daily compounding and the actual number of days elapsed.

(b)Further Assurances. Promptly following a demand made by a party, the other party will execute, deliver, file and record any financing statement, specific assignment or other document and take any other action that may be necessary or desirable and reasonably requested by that party to create, preserve, perfect or validate any security interest or lien granted under Paragraph 2, to enable that party to exercise or enforce its rights under this Annex with respect to Posted Credit Support or an Interest Amount or to effect or document a release of a security interest on Posted Collateral or an Interest Amount.

(c)Further Protection. The Pledgor will promptly give notice to the Secured Party of, and defend against, any suit, action, proceeding or lien that involves Posted Credit Support Transferred by the Pledgor or that could adversely affect the security interest and lien granted by it under Paragraph 2, unless that suit, action, proceeding or lien results from the exercise of the Secured Party’s rights under Paragraph 6(c).

(d)Good Faith and Commercially Reasonable Manner. Performance of all obligations under this Annex, including, but not limited to, all calculations, valuations and determinations made by either party, will be made in good faith and in a commercially reasonable manner.

(e)Demands and Notices. All demands and notices made by a party under this Annex will be made as specified in the Notices Section of this Agreement, except as otherwise provided in Paragraph 13.

(f)Specifications of Certain Matters. Anything referred to in this Annex as being specified in Paragraph 13 also may be specified in one or more Confirmations or other documents and this Annex will be construed accordingly.

Paragraph 12. Definitions

As used in this Annex:

“Cash” means the lawful currency of the United States of America. “Credit Support Amount” has the meaning specified in Paragraph 3. “Custodian” has the meaning specified in Paragraphs 6(b)(i) and 13. “Delivery Amount” has the meaning specified in Paragraph 3(a). “Disputing Party” has the meaning specified in Paragraph 5.

“Distributions” means with respect to Posted Collateral other than Cash, all principal, interest and other payments and distributions of cash or other property with respect thereto, regardless of whether the Secured Party has disposed of that Posted Collateral under Paragraph 6(c). Distributions will not include any item of property acquired by the Secured Party upon any disposition or liquidation of Posted Collateral or, with respect to any Posted Collateral in the form of Cash, any distributions on that collateral, unless otherwise specified herein.

“Eligible Collateral” means, with respect to a party, the items, if any, specified as such for that party in Paragraph 13.

“Eligible Credit Support” means Eligible Collateral and Other Eligible Support.

“Exposure” means for any Valuation Date or other date for which Exposure is calculated and subject to Paragraph 5 in the case of a dispute, the amount, if any, that would be payable to a party that is the Secured Party by the other party (expressed as a positive number) or by a party that is the Secured Party to the other party (expressed as a negative number) pursuant to Section 6(e)(ii)(2)(A) of this Agreement as if all Transactions (or Swap Transactions) were being terminated as of the relevant Valuation Time; provided, however, that Market Quotation will be determined by the Valuation Agent using its estimates at mid-market of the amounts that would be paid for Replacement Transactions (as that term is defined in the definition of “Market Quotation”).

“Independent Amount” means, with respect to a party, the amount specified as such for that party in Paragraph 13; if no amount is specified, zero.

“Interest Amount” means, with respect to an Interest Period, the aggregate sum of the amounts of interest calculated for each day in that Interest Period on the principal amount of Posted Collateral in the form of Cash held by the Secured Party on that day, determined by the Secured Party for each such day as follows:

(x) the amount of that Cash on that day; multiplied by

(y) the Interest Rate in effect for that day; divided by

(z) 360.

“Interest Period” means the period from (and including) the last Local Business Day on which an Interest Amount was Transferred (or, if no Interest Amount has yet been Transferred, the Local Business Day on which Posted Collateral in the form of Cash was Transferred to or received by the Secured Party) to (but excluding) the Local Business Day on which the current Interest Amount is to be Transferred.

“Interest Rate” means the rate specified in Paragraph 13.

“Local Business Day” unless otherwise specified in Paragraph 13, has the meaning specified in the Definitions Section of this Agreement, except that references to a payment in clause (b) thereof will be deemed to include a Transfer under this Annex.

“Minimum Transfer Amount” means, with respect to a party, the amount specified as such for that party in Paragraph 13; if no amount is specified, zero.

“Notification Time” has the meaning specified in Paragraph 13.

“Obligations” means, with respect to a party, all present and future obligations of that party under this Agreement and any additional obligations specified for that party in Paragraph 13.

“Other Eligible Support” means, with respect to a party, the items, if any, specified as such for that party in Paragraph 13.

“Other Posted Support” means all Other Eligible Support Transferred to the Secured Party that remains in effect for the benefit of that Secured Party.

“Pledgor” means either party, when that party (i) receives a demand for or is required to Transfer Eligible Credit Support under Paragraph 3(a) or (ii) has Transferred Eligible Credit Support under Paragraph 3(a).

“Posted Collateral” means all Eligible Collateral, other property, Distributions, and all proceeds thereof that have been Transferred to or received by the Secured Party under this Annex and not Transferred to the Pledgor pursuant to Paragraph 3(b), 4(d)(ii) or 6(d)(i) or released by the Secured Party under Paragraph 8. Any Interest Amount or portion thereof not Transferred pursuant to Paragraph 6(d)(ii) will constitute Posted Collateral in the form of Cash.

“Posted Credit Support” means Posted Collateral and Other Posted Support.

“Recalculation Date” means the Valuation Date that gives rise to the dispute under Paragraph 5; provided, however, that if a subsequent Valuation Date occurs under Paragraph 3 prior to the resolution of the dispute, then the “Recalculation Date” means the most recent Valuation Date under Paragraph 3.

“Resolution Time” has the meaning specified in Paragraph 13.

“Return Amount” has the meaning specified in Paragraph 3(b).

“Secured Party” means either party, when that party (i) makes a demand for or is entitled to receive Eligible Credit Support under Paragraph 3(a) or (ii) holds or is deemed to hold Posted Credit Support.

“Specified Condition” means, with respect to a party, any event specified as such for that party in Paragraph 13.

“Substitute Credit Support” has the meaning specified in Paragraph 4(d)(i).

“Substitution Date” has the meaning specified in Paragraph 4(d)(ii).

“Threshold” means, with respect to a party, the amount specified as such for that party in Paragraph 13; if no amount is specified, zero.

“Transfer”means, with respect to any Eligible Credit Support, Posted Credit Support or Interest Amount, and in accordance with the instructions of the Secured Party, Pledgor or Custodian, as applicable:

(i)in the case of Cash, payment or delivery by wire transfer into one or more bank accounts specified by the recipient;

(ii)in the case of certificated securities that cannot be paid or delivered by book-entry, payment or delivery in appropriate physical form to the recipient or its account accompanied by any duly executed instruments of transfer, assignments in blank, transfer tax stamps and any other documents necessary to constitute a legally valid transfer to the recipient;

(iii)in the case of securities that can be paid or delivered by book-entry, the giving of written instructions to the relevant depository institution or other entity specified by the recipient, together with a written copy thereof to the recipient, sufficient if complied with to result in a legally effective transfer of the relevant interest to the recipient; and

(iv)in the case of Other Eligible Support or Other Posted Support, as specified in Paragraph 13.

“Valuation Agent” has the meaning specified in Paragraph 13.

“Valuation Date” means each date specified in or otherwise determined pursuant to Paragraph 13.

“Valuation Percentage” means, for any item of Eligible Collateral, the percentage specified in Paragraph 13.

“Valuation time” has the meaning specified in Paragraph 13.

“Value” means for any Valuation Date or other date for which Value is calculated and subject to Paragraph 5 in the case of a dispute, with respect to:

(i)Eligible Collateral or Posted Collateral that is:

(A)Cash, the Amount thereof, and

(B)a security, the bid price obtained by the Valuation Agent multiplied by the applicable Valuation Percentage, if any;

(ii)Posted Collateral that consists of items that are not specified as Eligible Collateral, zero; and

(iii)Other Eligible Support and Other Posted Support, as specified in Paragraph 13.

Paragraph 13.

CREDIT SUPPORT ANNEX

Elections and Variables

dated as of January 4, 2008

between

LEHMAN BROTHERS SPECIAL FINANCING INC.

(hereinafter referred to as “Party A” or “Pledgor”)

and

WELLS FARGO BANK, N.A., NOT IN ITS INDIVIDUAL CAPACITY BUT SOLELY AS TRUSTEE OF THE

SUPPLEMENTAL INTEREST TRUST, FORBNC MORTGAGE LOAN TRUST

MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 2007-4

(hereinafter referred to as “Party B” or “Secured Party”)

Paragraph 13. Elections and Variables

(a) Security Interest for “Obligations”. The term “Obligations”as used in this Annex includes the following additional obligations:

With respect to Party A, not applicable.

With respect to Party B, not applicable.

(b) Credit Support Obligations.

(i)Delivery Amount, Return Amount and Credit Support Amount

(A) “Delivery Amount” has the meaning specified in Paragraph 3(a), provided that the words “upon a demand made by the Secured Party on or promptly following a Valuation Date” shall be deleted and replaced by the words “on each Valuation Date”; and provided further that the Delivery Amount shall be calculated with respect to collateral posting required by each Rating Agency by using (i) such Rating Agency’s applicable Valuation Percentages to determine Value and (ii) the Credit Support Amount related to such Rating Agency. The Delivery Amount shall be the greatest of such calculated amounts.

(B) “Return Amount” has the meaning specified in Paragraph 3(b), provided that the Return Amount shall be calculated with respect to collateral posting required by each Rating Agency by using (i) such Rating Agency’s applicable Valuation Percentages to determine Value and (ii) the Credit Support Amount related to such Rating Agency. The Return Amount shall be the least of such calculated amounts.

(C) “Credit Support Amount”has the meaning specified in Paragraph 13(p).

(ii) Eligible Collateral. At such time as Party A is required to post collateral), the following items will qualify as “Eligible Collateral”(together with such other collateral types (and related valuation percentages) subject to the Rating Agency Condition):

	Collateral Type	Valuation Percentage for S&P Collateralization Event	Valuation Percentage for S&P Ratings Event	Valuation Percentage forMoody’s First Trigger Credit Support Amount	Valuation Percentage for Moody’s second Trigger Credit Support Amount	Fitch Valuation Percentage
(A)	Cash.	100%	80%	100%	100%	100%
(B)	Fixed rate negotiable debt obligations issued by the U.S. Treasury Department having a remaining maturity on such date of not more than one year.	98%	78.44%	100%	100%	97.5%

(C)	Fixed rate negotiable debt obligations issued by the U.S. Treasury Department having a remaining maturity on such date of more than one year but not more than five years.	98%	78.44%	100%	94%	86.3%
(D)	Fixed rate negotiable debt obligations issued by the U.S. Treasury department having a remaining maturity on such date of more than five years but no more than ten years.	92.60%	74.1%	100%	94%	86.3%
(D)	Fixed rate negotiable debt obligations issued by the U.S. Treasury Department having a remaining maturity on such date of more than ten years.	88.6%	70.9%	100%	87%	86.7%
(E)	Other. Other items of Credit Support subject to the Rating Agency Condition.	% to be determined	% to be determined	% to be determined	% to be determined	% to be determined

(iii) Other Eligible Support. The following items will qualify as “Other Eligible Support” for the party specified: Not applicable.

(iv) Thresholds.

(A) “Independent Amount” shall not be applicable with respect to Party A or Party B unless otherwise specified in a Confirmation.

(B) “Threshold” means, with respect to Party A, infinity, provided that if a Collateralization Event or a Ratings Event has occurred and is continuing, the Threshold with respect to Party A shall be zero, except that the Threshold in respect of Party A shall be infinity so long as

(i) no S&P Collateralization Event has occurred and is continuing (x) for at least 10 Local Business Days or (y) since this Credit Support Annex was executed, and no S&P Ratings Event has occurred and been continuing, and

(ii) no Fitch Collateralization Event has occurred and is continuing for at least 30 calendar days.

(C) “Minimum Transfer Amount”means, with respect to a party, $100,000; provided, however, that if the aggregate Principal Balance of the Certificates rated by S&P ceases to be more than $50,000,000, then the Minimum Transfer Amount shall mean $50,000.

(D) “Rounding”. The Delivery Amount will be rounded up to the nearest integral multiple of $1,000 and the Return Amount will be rounded down to the nearest integral multiple of $1,000.

(v) “Exposure” has the meaning specified in Paragraph 12, except that (1) after the word “Agreement” the words “(assuming, for this purpose only, that Part 1(f)(B)[Calculations] of the Schedule is deleted)” shall be inserted and (2) at the end of such definition, the words “with terms substantially the same as those of this Agreement.”

(c) Valuation and Timing.

(i) “Valuation Agent” means Party A.

(ii) “Valuation Date” means, for purposes of each time that Party A is required to post collateral pursuant to this Credit Support Annex, each Local Business Day.

(iii) “Valuation Time” means the close of business in the location where the relevant product is traded, provided that the calculations of Value and Exposure will made as of approximately the same time on the same date.

(iv) “Notification Time” means 3:00 p.m., New York time, on a Local Business Day.

(v) Calculation of Value. For purposes of the calculation of “Value”, the term “applicable Valuation Percentage” shall mean

(A) as long as an S&P Collateralization Event has occurred and is continuing (x) for 10 Local Business Days or (y) since this Credit Support Annex was executed, and no S&P Ratings Event has occurred and been continuing the valuation percentage set forth for the applicable collateral item in Paragraph 13(b)(ii) under the heading “Valuation Percentage for S&P Collateralization Event” (“S&P Collateralization Event Valuation Percentage”);

(B) as long as an S&P Ratings Event has occurred and is continuing for 10 Local Business Days the valuation percentage set forth for the applicable collateral item in Paragraph 13(b)(ii) under the heading “Valuation Percentage for S&P Ratings Event” (“S&P Ratings Event Valuation Percentage”); and

(C) as long as a Fitch Collateralization has occurred and is continuing for 30 calendar days the valuation percentage set forth for the applicable collateral item in Paragraph 13(b)(ii) under the heading “Fitch Valuation Percentage” (“Fitch Valuation Percentage”);

provided that the calculation of Value shall not include any Valuation Percentage that pertains to the Rating Agency not then rating the [Notes/Certificates].

(vi) The amount of “Value” with respect to Cash in Paragraph 12 shall be the Amount thereof multiplied by the applicable Valuation Percentage.

(d) Conditions Precedent and Secured Party’s Rights and Remedies. There will be no Specified Conditions for Party A and Party B.

(e) Substitution

(i) “Substitution Date”has the meaning specified in Paragraph 4(d)(ii).

(ii) “Consent.” The Pledgor need not obtain the Secured Party’s consent for any substitution pursuant to Paragraph 4(d).

(f) Dispute Resolution

(i) “Resolution Time”means 1:00 p.m. on the Local Business Day following the date on which notice is given that gives rise to a default.

(ii) Value. For the purpose of Paragraph 5(i)(c) and 5(ii), the Value of Posted Credit Support will be calculated as follows:

With respect to any Eligible Collateral in the form of securities listed in Paragraph 13(b)(ii) (referred to herein as “Collateral Obligations”) the sum of (I)(x) the bid price quoted on such date by a mutually acceptable principal market maker for such Collateral Obligations, or (y) if no such quotation is available from a principal market maker for such date, such bid price as of the day, next preceding such date, on which such quotation was available, in either case multiplied by the applicable Valuation Percentage, plus (II) the accrued interest on such Collateral Obligations (except to the extent Transferred to a party pursuant to any applicable section of this Agreement or included in the applicable price referred to in (I) of this Clause) as of such date.

With respect to any Cash, the face amount thereof multiplied by the applicable Valuation Percentage.

(iii) “Alternative.” Paragraph 5 will apply.

(g) Holding and Using Posted Collateral.

(i) “Eligibility to Hold Posted Collateral; Custodians.”

Party B and or its Custodian will be entitled to hold Posted Collateral pursuant to Paragraph 6(b), provided that the following conditions applicable to it are satisfied:

(1) The Custodian is a bank or trust company located in the United States having (x) total assets of at least $250,000,000 and (y) a Short-term Rating or counterparty rating of “Prime-1” from Moody’s; “A-1” from Standard & Poor’s (or if such Custodian has no Short-term Rating, a Long-term Rating of “A+” or above); and “F1” from Fitch.

Initially, the Custodian for Party B is: the Trustee under the Trust Agreement. If the Custodian ceases to meet the requirements set forth in sub-clause (1)(y) above, Party B shall cause any Posted Collateral to be removed to another entity satisfying such credit ratings set forth in sub-clause (1)(y) above within 60 calendar days from the time such Custodian failed to be so eligible.

(ii) “Use of Posted Collateral” The provisions of Paragraph 6(c) will not apply with respect to the collateral posted by Party A.

(iii) Notice. If a party or its Custodian fails to meet the criteria for eligibility to hold (or, in the case of a party, to use) Posted Collateral set forth in this Paragraph 13(g), such party shall promptly notify the other party of such ineligibility.

(iv) The Custodian for Party B shall hold all Eligible Credit Support in an account segregated from the Swap Account, as defined in the related Trust Agreement.

(h) Distributions and Interest Amount.

(i) “Interest Rate.” The Interest Rate shall be the actual interest rate achieved on Posted Collateral in the form of Cash that is held by Party B’s Custodian. Posted Collateral in the form of Cash shall be invested in such overnight (or redeemable within two Local Business Days of demand) investments rated at least (x) AAAm or AAAm-G by S&P and (y) Prime-1 by Moody’s or Aaa by Moody’s, as directed by Party A (unless (x) an Event of Default or an Additional Termination Event has occurred with respect to which Party A is the defaulting or sole Affected Party or (y) an Early Termination Date has been designated, in which case such Posted Collateral shall be held uninvested). Gains and losses incurred in respect of any investment of Posted Collateral in the form of Cash in the overnight investments described immediately above as directed by Party A shall be for the account of Party A. If no investment direction is received, the Posted Collateral in the form of Cash shall be held uninvested.

(ii) “Transfer of Interest Amount.” The Transfer of the Interest Amount will be made on the second Local Business Day of each calendar month and on any Local Business Day that Posted Collateral in the form of Cash is Transferred to the Pledgor pursuant to Paragraph 3(b), in each case to the extent that a Delivery Amount would not be created or increased by that Transfer, provided that Party B shall not be obliged to so Transfer any Interest Amount unless and until it has earned and received such interest..

(iii) “Alternative to Interest Amount.” The provisions of Paragraph 6(d)(ii) will apply.

(i) Additional Representation(s). Not applicable.

(j) “Other Eligible Support and Other Posted Support.”

(i) “Value”with respect to Other Eligible Support and Other Posted Support means: Not applicable.

(ii) “Transfer”with respect to Other Eligible Support and Other Posted Support means: Not applicable.

(k) Demands and Notices. All demands, specifications and notices made by a party to this Annex will be made pursuant to the Notices Section of this Agreement.

(l) Addresses for Transfers. As agreed upon between the parties from time to time.

(m) Costs of Transfer on Exchange. Notwithstanding Paragraph 10, the Pledgor will be responsible for, and will reimburse the Secured Party for, all transfer and other taxes and other costs involved in the transfer of Eligible Credit Support either from the Pledgor to the Secured Party or from the Secured Party to the Pledgor.

(n) Agreement as to Single Secured Party and Pledgor. Party A and Party B agree that, notwithstanding anything to the contrary in the recital of this Annex, Paragraph 1(b) or Paragraph 2 of the definitions in Paragraph 12, (a) the term “Secured Party” as used in this Annex means only Party B, (b) the term “Pledgor” as used in this Annex means only Party A, (c) only Party A makes the pledge and grant in Paragraph 2, the acknowledgment in the final sentence of Paragraph 8(a) and the representations in Paragraph 9 and (d) only Party A will be required to post Eligible Credit Support hereunder. Party A also agrees that it shall pay all costs of transferring Eligible Credit Support required to be delivered by Party A hereunder.

(o) Cumulative Rights. The rights, powers and remedies of the Secured Party under this Annex shall be in addition to all rights, powers and remedies given to the Secured Party by the Agreement or by virtue of any statue or rule of law, all of which rights, powers and remedies shall be cumulative and may be exercised successively or concurrently without impairing the rights of the Secured Party in the Posted Credit Support created pursuant to this Annex.

(p) “Credit Support Amount” shall be (a) with respect to S&P, the S&P Credit Support Amount, and (b) with respect to Fitch, the Fitch Credit Support Amount.

(i) With respect to S&P:

“S&P Credit Support Amount” means, for any Valuation Date where the Threshold in respect of Party A is zero, (x) where an S&P Collateralization Event has occurred and been continuing (a) for at least 10 Business Days or (b) since this Credit Support Annex was executed , and no S&P Ratings Event has occurred and been continuing, the greater of zero and 100% of the Secured Party’s Exposure or (y) where a Ratings Event with respect to S&P has occurred and is continuing for at least 10 Business Days, an amount equal to the greater of zero and 125% of the Secured Party’s Exposure

(ii)With respect to Fitch:

“Fitch Credit Support Amount” means, (A) for any Valuation Date where the Threshold in respect of Party A is zero (x) on which a Fitch Collateralization Event has occurred and been continuing for at least 30 calendar days or (y) on which a Fitch Ratings Event has occurred and is continuing, an amount equal to the sum of (1) the aggregate Secured Party’s Exposure for such Valuation Date with respect to all Transactions and (2) the aggregate of the products of the Volatility Buffer for each Transaction and the Notional Amount of each Transaction for the Calculation Period of each such Transaction which includes such Valuation Date; or (B) for any other Valuation Date, zero.

“Volatility Buffer” shall mean the percentage set forth in the following table with respect to any Transaction (other than a Transaction identified in the related Confirmation as a Timing Hedge):

	Weighted Average Life (Years)
Notes’ Rating	1	2	3	4	5	6	7	8	9	10	11	12	13	14	>=15
USD Interest Rate Swaps
AA- or Better	0.6	1.6	2.6	3.4	4.2	4.8	5.5	5.9	6.4	7.0	7.5	8.0	8.5	9.0	9.5
A+/A	0.3	0.8	1.3	1.7	2.1	2.4	2.8	3.0	3.3	3.6	5.3	5.7	6.0	6.4	6.7
A-/BBB+	0.2	0.6	1.0	1.3	1.6	1.9	2.1	2.3	2.5	2.7	4.7	5.0	5.3	5.6	5.9

(q) Trustee Capacity. It is expressly understood and agreed by the parties hereto that (i) this Annex is executed and delivered by the Trustee not individually or personally but solely as supplemental interest trustee of the Trust, in the exercise of the powers and authority conferred and vested in it under the Trust Agreement, (ii) each of the representations, undertakings and agreements herein made on the part of the Trust is made and intended not as personal representations, undertakings and agreements by the Trustee but is made and intended for the purpose of binding only the Trust, (iii) nothing herein contained shall be construed as creating any liability on the part of the Trustee, individually or personally, to perform any covenant either expressed or implied contained herein, all such liability, if any, being expressly waived by the parties hereto and by any Person claiming by, through or under the parties hereto and (iv) under no circumstances shall the Trustee be personally liable for the payment of any indebtedness or expenses of the Trust or be liable for the breach or failure of any obligation, representation, warranty or covenant made or undertaken by the Trust under this Annex or any other related documents as to all of which recourse shall be had solely to the assets of the Trust in accordance with the terms of the Trust Agreement.

The parties executing this Credit Support Annex have executed the Master Agreement and have agreed as to the contents of this Credit Support Annex.

LEHMAN BROTHERS SPECIAL FINANCING INC.	WELLS FARGO BANK, N.A., NOT IN ITS INDIVIDUAL CAPACITY BUT SOLELY AS TRUSTEE OF THE SUPPLEMENTAL INTEREST TRUST, FOR BNC MORTGAGE LOAN TRUST MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 2007-4
Party A	Party B
/s/ Scott Sefton	/s/ Martin Reed
Name: Scott Sefton	Name: Martin Reed
Title: Vice President	Title: Vice President
Date: 1/8/08	Date: 1/8/2008