EXHIBIT 10.24

                                 SUPPLY CONTRACT
                                     305/200

SUPPLY CONTRACT - OPTICAL FIBERS
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One party

Xtal Fibras Oticas S.A is a stock company located in the city of Uberlandia,
Minas Gerais State, at the address Av. Comendador Alexandrino Garcia, number
2689, conjunto 08, Distrito Industrial, and its by-laws registered and filed in
Junta Comercial do Estado de Minas Gerais (Minas Gerais State Board of Trade)
under number NIRE 31300010236, in a session on August 18th, 1993 and properly
registered on the National Legal Entity Organization in the Revenue Secretary
CNPJ-MF under number 71.340.707/0002-76 (hereinafter referred to as Xtal, and
the other party, Quintas & Quintas Condutores Eletricos do Brasil Ltda., located
in the city of Belo Horizonte, Minas Gerais State, at the address Rua Parnaiba,
number 1000, 12(0) andar (12th floor) - Funcionarios ( Employees), registered in
CNPJ-MJ under number 03.934.024/001-06 (hereinafter referred to as "Quintas &
Quintas"), agree with the present supply contract, which will be ruled according
to the following clauses and conditions expressed below as well as its valid
legislation (hereinafter referred to as the "Contract").

1.     SUPPLY

1.1    Product: Singlemode Acrylate Optical Fiber (hereinafter referred
       "Product").

1.2    Amount: 470,000 km (four hundred and seventy thousand kilometers) of the
       Product.

1.3    Term of the Supply Contract: from January 2001 to December 2003.

1.3.1  Quarterly Scheduled Delivery Program of the Product until 2003:

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         Period              Year 2001          Year 2002          Year 2003
         -----------------------------------------------------------------------
         1st Quarter         15,000 km          45,000 km          45,000 km
         -----------------------------------------------------------------------
         2nd Quarter         15,000 km          45,000 km          45,000 km
         -----------------------------------------------------------------------
         3rd Quarter         36,000 km          45,000 km          45,000 km
         -----------------------------------------------------------------------
         4th Quarter         44,000 km          45,000 km          45,000 km
         -----------------------------------------------------------------------

1.3.2  According to the possibility, Xtal shall supply an additional amount of
       up to 30.000 km (thirty thousand kilometers) of the Product during the
       first semester of the year 2001, and Quintas & Quintas undertakes to
       acquire this additional amount of the Product that Xtal may offer under
       the same commercial conditions established in this Contract.

1.4    Product Specification

1.4.1  Attenuation: 100% @ 1310 nm < 0,35 dB/km.; @ 1550nm < 0,21 dB/km

1.4.2  Length: 40% maximum of 8.400m, with multiples of 2.100m, up to 25.200m
       and, 60% minimum of 25.200m, with multiples of 2.100m, up to 50.400m.

1.4.3  Technical Specifications: According to Quintas & Quintas specifications
       "Single mode optical fiber characteristics (ITU - T G 652)"annex 1 and
       other specifications according to Xtal pattern "DMKV007-0", annex 2.



1.4.4  Aiming to assure the purchase of the contracted amounts, and considering
       the technological evolution of the Product, it is entitled to Quintas &
       Quintas and Xtal the possibility of specification change. Any change in
       the Product only will be done with the formal agreement between Quintas &
       Quintas and Xtal.

1.5    Package: the spools and the protecting covers will be returned to Xtal in
       conditions of re-utilization in accordance to the respective loan
       invoice. If the packages are damaged, Quintas & Quintas shall indemnify
       Xtal according to the correspondent value specified in the loan invoice.

1.5.1  Xtal will be responsible for removing the package from the place where
       the product is delivered, and will be responsible for all costs with
       respect to such removal.

1.5.2  Xtal cannot remove the package before they are used by Quintas & Quintas,
       and Quintas & Quintas shall return the packages as soon as they stop
       using them.

1.5.3  No value will be owed by Quintas & Quintas for the use of the package, if
       the packages return to Xtal in re-utilization conditions, as described in
       item 1.5.

1.6    Delivery Place: at Quintas & Quintas Factory (at the address below) and
       Xtal shall be responsible for the freight
       Quintas and Quintas Condutores Eletricos do Brasil Ltda.
       Rua Paraiba, 1000 - 12(0)Andar - Funcionarios
       Belo Horizonte - MG
       CGC 03.934.024/001-06


2.     PAYMENT CONDITIONS

2.1    Prices (freight and insurance included - paid by Xtal)

2.1.1  The net price of the Product to the amounts scheduled in the item 1.3.1
       shall be the ones mentioned below (hereinafter referred the Net Price),
       and it is here established that the Net Price shall be reviewed according
       to the item 2.1.2

Year 2001

       o      First Semester: US$ 47.00 / km (Forty seven dollars per
              kilometer).

       o      Second Semester: US$ 47.00 / km (Forty seven dollars per
              kilometer), admitting a maximum readjustment of up to 5% (five per
              cent) lower or higher in the price, if the Market Price is
              superior or inferior to the price above mentioned.

Year 2002

       o      First Semester: 25% of the amount at US$ 40.00 / km (Forty dollars
              per kilometer) and 75% of the amount at the Market Price.

       o      Second Semester: 25% of the amount at US$ 40.00 / km (Forty
              dollars per kilometer) and 75% of the amount at the Market Price.

Year 2003

       o      First Semester: 50% of the amount at US$ 45.00 / km (Forty five
              dollars per kilometer) and 50% of the amount at the Market Price.



       o      Second Semester: 50% of the amount at US$ 42.00 / km (Forty two
              dollars per kilometer) and 50% of the amount at the Market Price.

2.1.2  Net Price in Reais (R$): it is the value of the Net Price converted to
       reais (R$), (hereinafter referred to as "the Net Price in Reais"), using
       the commercial dollar rate of sale (PTAX), given by the information
       system of the Central Bank, transaction PTAX800, option 5 ("accounting
       quotations") for the immediately previous day to the invoicing of the
       product.

2.1.3  Invoicing: it will be done based on the net price of the Product in Reais
       with accrued taxes, according to item 3. below.

2.1.4 a) The following months are established for meetings between Xtal and
      Quintas & Quintas, aiming to determine the price readjustment values, to
      the percentile of the contracted amounts at the Market Price, as described
      in the item 2.1.1:

       o      Year 2001: May and November

       o      Year 2002: May and November

       o      Year 2003: May and November

2.1.4  b) The readjustment of the prices will be done based on the price of the
       Product in the North-American market.

2.1.4  c) The price reference to be used in the first price readjustment meeting
       shall be US$ 47,00/km (forty-seven dollars per kilometer). This value is
       equivalent to the price of US$ 36.19 / km (thirty six dollars and
       nineteen cents per kilometer) for the same type of Product in the
       North-American Market in November 2000. In the subsequent meetings, the
       price references to the readjustment calculation will be the last
       readjusted price and the value of the Product in the North-American
       Market, on the date of the meeting.

2.1.5  If there is a reduction of the Import Tax aliquot (hereinafter referred
       as "II") of the Product, Xtal undertakes to reduce the Net Price, in the
       maximum period of 30 (thirty) days, at the same proportion of the aliquot
       reduction of the Product "II".

2.1.6  If the Product "II" aliquot increases, Quintas & Quintas undertakes to
       accept the increase in the Net Price, in the maximum period of 30
       (thirty) days, at the same proportion of the aliquot reduction of the
       Product "II".

2.2    Payment

2.2.1  Payment Term:

2.2.1  a) From January to July 2001, the payment will be a vista, no longer than
       3 (three) days after the Invoice issue, with a discount of the Financial
       Tax correspondent to the projection of the CDI (certificate of inter bank
       deposit) of 30 days, published in the newspaper Gazeta Mercantil of the
       last day of the previous month of the Product invoice.

2.2.1  b) From August 2001 to December 2003, the period of the payment shall be
       30 (thirty) days from the delivery date, without the increase of any
       Financial Tax.

2.2.2  Payment Readjustment based on the Exchange Variation:



2.2.2  a) Exchange Variation is defined by the corresponding value, in Real
       (R$), of the difference between what would be the net price of the
       Product in Real (R$) on the date of the payment and its net price on the
       invoicing date.

2.2.2  b) Exchange Variation of up to 5% (five percent) shall not give rise to
       any readjustment of the payment value.

2.2.2  c) Quintas & Quintas has to compensate Xtal by 50% (fifty percent) of the
       positive exchange variation in the part that such variation exceeds the
       rate of 5% (five percent) mentioned above.

2.2.2  d) In the negative exchange variation, according to the definition above,
       Quintas & Quintas will be compensated by Xtal, in 50% (fifty percent) of
       the part if such variation exceeds 5% (five percent).

2.2.3  On the payment date, Quintas & Quintas should pay the product invoiced
       independently of the Exchange Variation verified in respect to such
       payment.

2.2.4  At the end of every month the Exchange Variations will be calculated of
       the payments made by Quintas & Quintas during the referred period. The
       Exchange Variation calculated above in the form of item 2.2.2 in the
       reference month will be computed in the first Revenue of the following
       month.

2.2.5  If the there is a Exchange Variation superior to 5% (five per cent) in
       the previous revenue, the compensation will be made through financial
       payment, in a way that the part in debt should compensate the other part
       according to the item 2.2.2 c) and 2.2.2 d).

3.     TAXES ON THE NET PRICE IN REAL (R$)

3.1    ICMS tax (sales tax) will be included according to the State where the
       product is sold.

3.2    15% of IPI (excise tax) tax to be mentioned separately in the Invoice.


4.     BANK GUARANTEE AND FINE

4.1    Bank Guarantee: on the day of the first revenue Quintas & Quintas shall
       present a bank guarantee in the equivalent value of the revenue of 45
       (forty-five) days, that will be revalidated each 30 (thirty) days.

4.2    Fine: 2% (two percent) of fine will be charged over the amount of the
       payment in case of the delay, in the event Xtal has not caused it and it
       is established that Quintas & Quintas will be

entitled to pay the financial charges that may be duly.

5.     COMMITMENT OF PURCHASE AND SALE

5.1    Xtal agrees to meet the Quarterly Delivery Program described in item
       1.3.1 of the contract, dividing it per weeks. It should also make the
       delivery within 3 (three) business days of the Invoicing date, subject to
       the suspension of the respective payment, excluding the event of force
       majeur or fortuitous events.

5.2    If there is any eventual shortage of raw material or no availability of
       equipment that implies in the interruption of Xtal production during the
       year of 2001, there will not be any fines due to delays in the delivery



       of the product, not releasing Xtal from the obligation of delivering the
       delayed quantity in no longer than 60 (sixty) days starting from the
       regularization of the raw material supply or availability of equipment.

5.2.1  In the event of force majeur, if the supply of the Product is not enough
       to meet all the commitments of Product delivery to the customer, Xtal
       undertakes to divide equally the supply of the available Product among
       the customers that it has the commitment of Obligatory Purchase ("Take or
       Pay").

5.2.2  In the years of 2002 and 2003, excluding the event of fortuitous events,
       force majeur and shortage of raw material, Xtal and excluding what is
       established in item 5.5, if Xtal does not meet the delivery commitment,
       established in item 1.3.1, Quintas & Quintas shall be financially
       indemnified in 100% of the referred value to the quantities delayed, not
       releasing Xtal from the obligation of future delivery of the delayed
       fiber.

5.2.3  The maximum period of 10 (ten) days will be considered tolerable before
       Xtal is considered to have delayed the delivery.

5.3    In the event of substantial alteration of the economical-financial
       equilibrium of this Contract, the values will be renegotiated and
       readjusted annually.

5.4    In the event of obligatory purchase ("Take or Pay"): Quintas & Quintas
       undertakes obligatorily to buy the quantities described in item 1.3.1,
       guaranteeing the total payment of the quantities to be shipped, as
       described in the item 2. If Quintas & Quintas, after the beginning of the
       delivery of the Product by Xtal, give up, without any justification,
       partially or totally, the acquisition of the contracted fiber quantities,
       excluding the event of fortuitous events and force majeur, Xtal shall be
       financially reimbursed of the amount equivalent to the quantities to be
       delivered.

5.5    Notwithstanding the obligation of the fulfillment of the delivery of the
       contracted quantities in each semester, the monthly supplies may have a
       maximum variation of 20% and Xtal will not suffer any of the penalties.

6.     PRODUCT GARANTEE

       Xtal will substitute without any burden to Quintas & Quintas, any
       quantity of Product, in no-conformity situation with the specifications
       determined in the item 1.4 of this contract, provided the cabling
       operations have been made using the adequate technical standard and that
       the generating fact of this situation is communicated formally to Xtal
       within a period of 10 (ten) days, starting from the date of its
       occurrence. The period of this warranty is of 06 (six) months counting as
       of the date of the shipment of the Product.

7.     END OF THE CONTRACT

       This Contract shall enter in effect immediately upon signature by the two
       parties and shall remain in effect until December 31st, 2003. The
       contract cannot be transferred totally or partially, without previous
       accordance of both parts. If Quintas & Quintas does not present bank
       guarantee, according to item 4.1, up to January 15th, this Contract shall
       be cancelled.

8.     IMPORTANT MODIFICATIONS



       If it is necessary, Quintas & Quintas shall inform in its purchase order,
       any corporate changes or changes in its by-laws that may imply in any
       alteration to any of the obligations or condition established in this
       contract.

9.     RESOLUTION OF LITIGATIONS

       The courts of the city of Sao Paulo shall rule any controversy due to
       this contract, and the parties waive to any other court, even if it is
       more beneficial.

10.    SIGNATURES

XTAL FIBRAS OPTICAS S/A

Campinas, SP, December _____, 2000.

Signed:

Rafael B. Gandara - Financial Director

Celso Arantes Simoes - Marketing & Sales Director

Antonio Carlos de Campos - Managing Director

QUINTAS & QUINTAS CONDUTORES ELETRICOS DO BRASIL LTDA.

Signed:

Manuel Pedro Quintas - Financial Adm. Director

Pedro Lima - Financial Director

11. WITNESS:


- ------------------------------------------------------
Name
Occupation
Quintas & Quintas Condutores Eletricos do Brasil Ltda.
Document:

Signed:
Nivaldo Seixas - Sales Manager -Xtal Optical Fibers S/A RG 20.449.226-91 SSP-SP