Exhibit 10.03
 AMENDMENT AGREEMENT
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Section One
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 4. PRICE AND PAYMENT CURRENCY.
 The monthly rent payable by LESSEE, which is mutually agreed by the parties, is US$ 23,752 (twenty
three thousand, seven hundred and fifty two United States Dollars) and as from October
1 st , 2008 is US$ 27,405 (twenty seven thousand, four hundred and five United States
Dollars) for the floor leased together with the parking spaces, all of which
were specified in Section 2 above. Payment shall be computed to the forward month, and rent shall
be payable between the 1 st and the 5 th day of the respective month, at the
address herein established by LESSOR. The minimum rent amount shall not be lower than seventy five
thousand, two hundred and ninety one pesos (AR$ 75,291), at the seller exchange rate published by
Ambito Financiero, corresponding to the day immediately prior to the payment date. Should the
monthly rent amount turns to be lower than such amount, LESSEE shall pay it to LESSOR. LESSOR may
choose to demand that payment be made in Argentine pesos in the amount necessary to purchase the
specified amount of dollars on the Floating Exchange Rate Market in New York or Montevideo, at
LESSORs option, and free of any expenses for LESSOR. It is hereby expressly established that the
price is herein set in United States dollars because the parties understand that section 13 of Law
No. 23928 has, in general, repealed section 1 of Law No. 23,091, which banned the setting of lease
agreements prices in dollars, for which reason sections 617 and 619 of the Argentine Civil Code
are now applicable. The parties freely agree that the rent amount shall be jointly reviewed every
year, as from April 1 st , 2008, upon the express prior request by one of the parties,
following the procedure stated hereinafter to set a new rent amount. The parties agree that, in the
event of disagreement as to the rent amount and of one of the parties having requested a review of
the amount, the PARTIES shall obtain each an appraisal of the amount for rents with similar
characteristics and conditions from a renowned real estate broker working in the area. Once both
appraisals are obtained, the PARTIES shall agree upon a new rent amount within thirty calendar
days, not more, computed as from April 1 st , 2008 and 2009, respectively. The meetings
shall always be held between direct representatives of both companies. If the parties fail to reach
an agreement within said period, the rent amount shall be set by the L.J. Ramos firm, which will
take into account the appraisals made by the brokers and other elements of market analysis, and the
parties shall accept this amount. In addition to the amount stated above, LESSEE shall, from April
1, 2007, pay any taxes due to the Autonomous Government of the City of Buenos Aires (Street
Lighting, Sweeping and Cleaning, Pavement and Sidewalks, and Land Tax, known as ABL), Aguas
Argentinas S.A. and the common expenses of the building, maintenance of the services provided at
the Building, e.g.: Cafeteria, Gym. The amount of ordinary expenses, common expenses, taxes,
assessments, and services shall be calculated according to the percentage established in Annex I,
which is an integral part of this Agreement. The services used by LESSEE to carry out its business
activities and which are not mentioned above, such as electricity, telephone services and other
services which are not covered by the common expenses shall be borne by LESSEE from April 1, 2007,
the effective date of this Agreement. The Value-Added Tax (VAT), and any other taxes which in the
future may be levied on leases, is not included in the rent amount and shall be borne by LESSEE.
 Section Two
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 5.
SECURITY DEPOSIT.
 The security deposit agreed upon by the PARTIES amounts to US$ 47,504 (forty seven thousand, five
hundred and four United States Dollars), equivalent to two months rent.
The PARTIES agree that such amount is paid as follows; (i) the amount of US$ 12,806 (twelve
thousand, eight hundred and six United States Dollars) was paid by LESSEE to LESSOR on March
31 st , 2004, by reason of the previous lease agreement (signed on March 31, 2004), (ii)
the amount of US$ 27,290 (twenty-seven thousand, two hundred and ninety United States Dollars) was
paid by LESSEE to LESSOR on March 31 st , 2007, by reason of this lease agreement, and
(iii) the amount of US$ 7,408 (seven thousand, four hundred and eight United States Dollars) is
paid by LESSEE to LESSOR by means of a check payable to LESSORs order for the amount of Argentine
Pesos sufficient to purchase the amount of dollars specified above. This agreement shall be
sufficient evidence of receipt thereof. Such amount shall not accrue any interest whatsoever and
shall be used as compensation for any damages that LESSEE may cause to the leased premises from the
moment delivery of possession is received. The amount shall be reimbursed to LESSEE upon
termination of the agreement and when the premises are returned in the conditions established
herein and once any amounts owed or necessary to restore the missing items or items to be replaced
have been deducted. The parties agree that LESSORs failure to reimburse the amount given as
Security Deposit by LESSEE shall empower LESSEE, once the premises are delivered in the agreed-upon
conditions and the proportional amounts owed by LESSEE for the consumption of public utility
services are paid, all of which shall not exceed a period of twenty (20) business days from the
date the premises are delivered to LESSOR, to file for a summary proceeding claiming the undue
withholding of the amount without prior notice to LESSOR being necessary. The delayed reimbursement
of the security deposit shall entail the LESSORs default and undue withholding of the amount, and
shall consequently accrue a monthly penalty interest equivalent to 2% per month for the period
during which the security deposit was withheld from the termination of the agreement and the
delivery of the leased premises until the effective reimbursement. The PARTIES agree that such
amount shall be paid at LESSORs offices located at Tronador 4890 10 th floor, Capital
Federal.
 Section Three
  Section Four
  Section Five
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