30 May2008 PARTICULARS

EXHIBIT 10(vii)

Deed of Variation

Heron Quays (HQ4) T1 Limited

and

Heron Quays (HQ4) T2 Limited

and

Canary Wharf Management (HQ3/HQ4) Limited

and

Canary Wharf Management Limited

and

The Northern Trust Company

of an underlease of premises known as Level B1M and Floors 9 – 11 of Building HQ4 50 Bank Street Canary Wharf West India Docks Isle of Dogs London E14

30 May 2008

PARTICULARS

THIS DEED OF VARIATION is made on the date and between the parties specified in the Particulars

NOW THIS DEED WITNESSES AS FOLLOWS:

In this deed the following words and expressions have the following meanings:

“Landlord” means the person described as the Landlord in the Particulars and includes the person in whom the Reversion is for the time being vested

“Lease” means the underlease of the premises described in the Particulars and includes all or any deeds and documents made pursuant to or supplemental to that lease whether or not expressed to be so

“Management Company” means the person described as the Management Company in the Particulars and includes any other person nominated by the Landlord (including (if applicable) the Landlord) to undertake its role under the Lease

“Particulars” means the immediately preceding section of this deed headed “Particulars”

“Reversion” means the reversion immediately expectant on the determination of the Term

“Tenant” means the person described as the Tenant in the Particulars and includes its successors in title and assigns

“Term” means the term of years granted by the Lease and includes any continuation or extension of the Term and any holding over whether by statute at common law or otherwise

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The parties hereto agree that the Lease shall from and including the date of this deed be varied as set out in the schedule

The parties to this deed agree and declare that:

The Landlord and Tenant each agree to endorse a memorandum of this deed on the counterpart Lease and on the Lease held by them respectively and to supply each other with a certified copy of the respective memorandum within 14 days of the date of this deed

The parties shall bear their own costs and disbursements (including any Value Added Tax) of and incidental to the preparation execution completion and registration of this deed and the rent review memorandum of even date herewith relating to the Lease

A person who is not a party to this deed shall have no rights under the Contracts (Rights of Third Parties) Act 1999 to enforce any of its terms

IN WITNESS whereof this deed has been executed on the date first above written

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SCHEDULE

Variations to the Lease

REPLACEMENT OF EXISTING CLAUSE 7.13

Clause 7.13 of the Lease shall be deleted and replaced by the following:

In the event of the Estate Common Parts the Building or in either case any part thereof being destroyed or damaged by an uninsured risk so as to render the Demised Premises unfit for use and occupation or inaccessible either party may terminate this Lease by not less than one (1) month’s written notice to the other and the Management Company to be given at any time after four (4) years of such damage or destruction but prior to completion of the rebuilding or reinstatement of such damage or destruction and such determination shall be without prejudice to any claim by either party against the other in respect of any antecedent breach of covenant

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APPENDIX

Conformed Copy of Lease

[Omitted; see Exhibit 10 (xxviii)(3) filed with the Annual Report on Form 10-K for the year ended December 31, 2002, as previously amended by a Deed of Variation dated May 26, 2005 filed as Exhibit 10(i) with the Quarterly Report on Form 10-Q for the quarter ended June 30, 2005, and the preceding Schedule]

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