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Exhibit 10.66
 
 RENTAL OFFER FOR READY-BUILT FACTORY (RBF) FLATTED FACOTRY  H1 TYPE BLOCK A #04-13/16 (925
SQM) AT NO. 5 XING HAN STREET (PREMISES) IN SUZHOU INDUSTRIAL PARK (SIP)
  1.0
    
    Description of Premises1.1
    
    PropertyBlock A (H1 Series) Flatted Factory in Phase 1, which had been mortgaged to the Bank
of China (Bank) for the Landlords financing purpose.1.2
    
    LocationNo 5 Xing Han Street, Block A, Postal Code 215021 Suzhou Industrial Park, Peoples
Republic of China.1.3
    
    Built-up Area of RBFApproximately 925square meters.2.0
    
    Term & Rent Free Period2.1
    
    Term of the TenancyFor the Premises, the lease term is Two (2) years and Two (2) months commencing from
the date of possession (handover).2.2
    
    Rent Free PeriodThere shall be Rent Free Periods totaling two months in parts:-
 a)
    
    First Rent Free Period is commencing from date of possession;b)
    
    Second Rent Free Period is at the end of lease term.
 The First Rent Free Period and Second Rent Free Period shall collectively call Rent Free
Period during which you shall not be required to pay Rent. However, you are required to pay
the Facilities Charge and the Service Charge at the rate stipulated in Clause 3.4
respectively and all other charges (if any).
 Ascendas-Xinsu Development(Suzhou) Co Ld5 Xing Han Street Block ESuzhou 215021Telephone (86) 512 6761 3388Facsimile (86) 512 6761 9141Website www.ascendas.com




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The Rent Free Period is part of the special package granted to you and in the event
that the Tenancy is prematurely terminated due to the fault of you, Rent shall become
payable immediately for the enjoyed Rent Free Period at the rate stated in Clause 3.1
hereof.2.3
    
    Rent PeriodA period of Twenty Four (24)months commencing from the Possession (handover) date.3.
    
    Rent, Facilities Charge, Service Charge & Deposits3.1
    
    RentAt the yearly rent of RMB Yuan Two Hundred Twenty Two Thousand Only (RMB 222,000.00)to
be paid by equal quarterly installments of RMB 55,500.00each without demand and in advance
without deduction on the 1st day of each of the months of January, April, July and October
(the Due Date) in every year of the Term the first of such payments to be made as
stipulated in the Tenancy Agreement at our office or at such other offices as we may
designate calculated at the rental rate of RMB 20.00per square metre per month of the
Built-up Area of the Premises. The Rent shall be payable with effect from the Possession
Date.3.2
    
    Facilities ChargeAt the rate of RMB Yuan One Hundred Sixty Six Thousand and Five Hundred Only (RMB 166,500.00)per annum payable in advance on the same dates and in
the same manner as for Rent by quarterly installment of RMB 41,625.00calculated at the
rate of RMB 15.00per square meter per month of the Built-up Area of the Premises as
charges for the facilities provided by us, including provision of power supply system,
water supply system, sewer discharge system to the Building and bicycle parking etc.3.3
    
    Security DepositAt an amount equivalent to three (3) months Rent and Facilities Charge of RMB Yuan
Ninety Seven Thousand One Hundred and Twenty Five Only (RMB 97,125.00), based on RMB 35
psm/month (i.e. RMB 20+RMB15) shall
 Ascendas-Xinsu Development(Suzhou) Co Ld5 Xing Han Street Block ESuzhou 215021Telephone (86) 512 6761 3388Facsimile (86) 512 6761 9141Website www.ascendas.com




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be paid in cash upon signing of this Letter of Offer by telegraphic transfer/cash
payment.The Security Deposit shall be the security deposit as required under the Tenancy Agreement
and shall not at any time be deemed as payment of all or any part of the Rent and shall be
used in accordance with the provisions herein contained and against the breach of the
Tenancy Agreement. In the event that after the commencement of the tenancy, you, for
whatever reasons fail to complete the full Term of the tenancy, we shall be entitled to
forfeit the Security Deposit.3.4
    
    Service ChargeAt the rate of RMB Yuan Ninety Two Thousand One Hundred and Thirty Only (RMB92.130.00)per
annum payable in advance on the same dates and in the same manner as for Rent by quarterly
installment of RMB 23,032.50calculated at the rate of RMB 8.30 per square meter per month
of the Built-up Area of the Premises as charges for estate management services undertaken
by us.3.5
    
    Utility DepositThe Utility Deposit shall be in cash for the sum equivalent to three (3) months of
the Rent and the Facilities Charge RMB Yuan Ninety Seven Thousand One Hundred and Twenty
Five Only (RMB 97,125.00)based on RMB 35 psm per month to serve as a security of your due
performance of your obligation to pay all utility-related charges under the Tenancy
Agreement. The Utility Deposit shall be valid from the Date of Possession of the Premises
until at least ninety (90) days after the expiry of the Term.3.6
    
    Stamp Duties/Legal Fees/Other Government TaxesThe Rent quoted above is inclusive of land use fees, property tax and connection and
enhancement fees for water, electricity and sewerage for the Premises up to the capacity
stated in the Tenancy Agreement which have been paid upfront by us to the Chinese
Authorities.However, you are required to bear your own legal fees, governmental taxes and stamp fees
incurred for this tenancy transaction unless otherwise dictated by the Chinese laws.
 Ascendas-Xinsu Development(Suzhou) Co Ld5 Xing Han Street Block ESuzhou 215021Telephone (86) 512 6761 3388Facsimile (86) 512 6761 9141Website www.ascendas.com




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3.7
    
    Currency for PaymentThe Rent, Facilities Charge, Security Deposit, Service Charge and any sum payable
under this offer or the Tenancy Agreement, shall be paid in Renminbi (RMB)3.8
    
    InterestThe Tenant shall pay interest at the rate of five per cent (5%) above the prevailing
12-month working capital lending rate of the Peoples Bank of China in respect of any
outstanding monies due and payable under the Tenancy from the due dates until full payment
is received by the Landlord.4.0
    
    Additional Terms4.1
    
    UsageYour usage of the Premises shall be subject to the approval of the Suzhou Industrial
Park Administrative Committee and other relevant authorities.4.2
    
    Nuisance4.2.1
    
    You shall not do, permit or suffer to be done upon the Premises anything
which in the opinion of the Ascendas-Xinsu may be or becomes:
 a)
    
    a nuisance, annoyance or cause damage or inconvenience to; orb)
    
    an interference to the business or quiet or comfort of
 Ascendas-Xinsu, its tenants or lessees or the occupiers of any adjoining or neighbouring
premises.4.2.2
    
    You shall take such necessary measures to prevent the breach of your
obligations under Clause 21.1.4.2.3
    
    Notwithstanding Clause 4.2.1, Ascendas-Xinsu shall not be responsible to
you for any loss, damage or inconvenience as a result of nuisance,
annoyance or any interference whatsoever caused by the other occupants of
the Building and/or the Estate.
 Ascendas-Xinsu Development(Suzhou) Co Ld5 Xing Han Street Block ESuzhou 215021Telephone (86) 512 6761 3388Facsimile (86) 512 6761 9141Website www.ascendas.com




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4.2.3
    
    Ascendas-Xinsu shall not be liable or obliged for any damages, nuisance and other
disturbances caused by you to the other occupants of the Building and/or the Estate.4.3
    
    Electrical Design LoadThe maximum electrical design load that applies to the Premises is 250 VA per square
metres (the design load). The tenant shall at its own cost and expense, be responsible
for the engineering connections from the building to the premises. Should you require
additional electrical load, we may at our discretion arrange for such higher electrical
load to be supplied to the Premises and the costs of such arrangement shall be borne by
you. In addition, you shall bear the additional fees or such fees to be imposed by the
Chinese authorities and any charges and expenses in relation to the increased load.4.4
    
    Restoration of the PremisesImmediately prior to the termination of the Term of tenancy, you shall restore the
Premises in all respects to its original state and condition at the Date of Possession, if
so required by us. The restoration works shall include but not limited to the demolition of
any structure or building constructed by you therein, redecoration and painting the interior
of the Premises to our satisfaction.In the event that you fail in any way to observe or perform your obligations as provided
in this Clause, without prejudice to any other rights and remedies we may have against
you, we may:
 (a)
    
    execute such work for such restoration and redecoration; and(b)
    
    recover all costs and expenses thereof from you including the Rent,
Service Charge, tax and other amounts which we would have been
entitled to receive from you had the period within which such
restoration and redecoration are effected by us been added to the
Term of tenancy.
 Ascendas-Xinsu Development(Suzhou) Co Ld5 Xing Han Street Block ESuzhou 215021Telephone (86) 512 6761 3388Facsimile (86) 512 6761 9141Website www.ascendas.com




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4.5
    
    Further TermOn your written request made not less than three (3) months before the expiration of the
Term of tenancy and if there shall not at the time of such request be any existing breach
by you of any of the terms and conditions of the Tenancy Agreement, we shall grant you, at
your cost and expense, a further lease term as may be permitted under the laws of the PRC
and agreed mutually by the parties in writing at the revised rent and facilities charges to
be determined by us but any increase in rent and facilities charge shall not exceed 30% of
the current Rent and the Facilities Charge and containing, inter alia, the terms and
conditions of the Tenancy Agreement subject to such variations or modifications as may be
imposed by us with the exception of and without the present provision for renewal.4.6
    
    Force MajeureIn the event that any of the parties shall be rendered unable to perform within the
stipulated time the whole or any part of its obligations under this offer by reason of
Force Majeure, the time limit for the performance of this offer or any provision thereof
shall be extended for a period corresponding to the effects of such Force Majeure, Force
Majeure refers to any occurrence beyond the reasonable control of the Parties such as:
 (i)
    
    fire, flood, storm, typhoon, explosion, landslide, tempest, earthquake or
any natural calamities;(ii)
    
    war, riot, civil commotion or unrest, military actions or similar events
in the Estate or Suzhou Municipality.
 The party affected by the event of Force Majeure shall inform the other party in the
shortest possible time after the occurrence of such event and provide the other party with
documents sufficiently evidencing the cause, nature and severity of the occurrence of such
event as soon as possible.Upon the occurrence of an event of Force Majeure, the parties shall use their best
endeavours to reduce the effects of such event on the performance of this offer to a
minimum.
 Ascendas-Xinsu Development(Suzhou) Co Ld5 Xing Han Street Block ESuzhou 215021Telephone (86) 512 6761 3388Facsimile (86) 512 6761 9141Website www.ascendas.com




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4.7
    
    Non Assignability Or Transfer Of Rights Under This OfferYou shall not assign, transfer, part with or share your interest under this offer without
our prior written consent.4.8
    
    ConfidentialityYou shall agree to keep this offer and all information exchanged in connection therewith
confidential at all times.You shall further agree to co-ordinate with each other on all press releases and other
public announcements to be made in connection with this offer.4.9
    
    Settlement of DisputeAny dispute arising from the Agreement shall be settled amicably. Failing such
amicable settlement, then the dispute shall be settled by proceedings in the courts of
Suzhou.4.10
    
    Possession DateYou shall be required to take possession the Premises on or before 31 August 2006or such
other later date as may be mutually agreed in writing (the Expiry Date), failing which we
shall be entitled to forfeit the Security Deposit whereupon this offer shall cease to have
any legal or other effect whatsoever and we shall be completely discharged and released
from any liability, obligation, responsibility or duty whatsoever whether arising from or
in connection with this offer or otherwise and you shall not have any claim, action, remedy
or recourse whatsoever against us.5.0
    
    Validity of Offer & Execution of Tenancy Agreement5.1
    
    Tenancy AgreementYou shall be required to execute the Tenancy Agreement on or before two months from the
date of possession, or such other later date as may be mutually agreed in writing (the
Expiry Date), failing which we shall be entitled to forfeit the Security Deposit. Provided
that in the event that we are unable for any reason whatsoever to execute the Tenancy
Agreement on or
 Ascendas-Xinsu Development(Suzhou) Co Ld5 Xing Han Street Block ESuzhou 215021Telephone (86) 512 6761 3388Facsimile (86) 512 6761 9141Website www.ascendas.com




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before the Expiry Date, we shall return the Security Deposit without interest to you
whereupon this offer shall cease to have any legal or other effect whatsoever and we shall
be completely discharged and released from any liability, obligation, responsibility or
duty whatsoever whether arising from or in connection with this offer or otherwise and you
shall not have any claim, action, remedy or recourse whatsoever against us.The Tenancy Agreement shall include the terms of this offer and forthwith upon acceptance
of this offer, you may commence negotiation with regard to the remaining terms and
conditions of the Tenancy Agreement other than the terms of this offer.5.2
    
    Mode of AcceptanceThis offer shall lapse if we do not receive all of the following by 11 August 2006.
 a.
    
    Letter of acceptance;b.
    
    Payment of the three (3) months Security Deposit.c.
    
    Certificate of incorporation or a copy of Business License, when available.d.
    
    Payment of the three (3) months Utility Deposit.e.
    
    Payment of the enhancement fee for increase of power supply.
  Payees Name
    
    :ASCENDAS-XINSU DEVELOPMENT (SUZHOU) CO., LTD.USDAccount No
    
    : 412-08415208096014RMBAccount No
    
    : 412-08415208091001Bank
    
    : Bank of China Suzhou Industrial Township Sub-Branch
 Ascendas-Xinsu Development(Suzhou) Co Ld5 Xing Han Street Block ESuzhou 215021Telephone (86) 512 6761 3388Facsimile (86) 512 6761 9141Website www.ascendas.com