---

AMENDMENT TO INVESTMENT AGREEMENT

THIS AMENDMENT TO INVESTMENT AGREEMENT (this
Amendment) is entered into by and among, on the one side:

|I.       | ARVANA PARTICIPAÇÕES S.A.,
        a corporation incorporated and existing under the laws of Brazil, with
        its head office at Av. Brigadeiro Faria Lima, 1571, 13.o andar, cj.
        13B, São Paulo, SP, enrolled at the Corporate Taxpayers Registry
        of the Ministry of Finance (CNPJ/MF) under No. 04.754.635/0001-35 (hereinafter
        referred to as Investor);                                                                                        
|-------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|         | and, on the other side,                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|II.      | GLOINFO 500 SOLUÇÕES EM TELEMÁTICA
        LTDA., a Brazilian limited company incorporated and existing under
        the laws of Brazil, with its head office at Av. Pres. Wilson, 228, 2.o
        andar, Rio de Janeiro, RJ, enrolled at the Corporate Taxpayers Registry
        of the Ministry of Finance (CNPJ/MF) under No. 03.721.699/0001-77 (hereinafter
        referred to as Global); and                                                                        
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|III.     | PAULO SANTOS MESSINA, Brazilian, married,
        businessman, identity card No. 10.244.809-9 IFP, enrolled at the General
        Taxpayers Roll (CPF/MF) under No.                                                                                                                                                                                                                                                                                                             
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|         | 051.561.257-00, and his spouse, LÚCIA
        SANGIACOMO MESSINA, Brazilian, married, physician, identity card No.
        05971064-0 IFP, enrolled at the General Taxpayers Roll (CPF/MF) under
        No. 972.605.767-15, both resident and domiciled at Av. Marechal Ramon
        Castilla, 199, apt. 203  Botafogo, in Rio de Janeiro, RJ (hereinafter
        collectively referred to as PM and, together with Global,
        jointly referred to as Shareholders);
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|         | (Investor, Global and PM are herein also individually
        referred to as a Party and, collectively, as Parties.)                                                                                                                                                                                                                                                                                                                                                         
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|         | and, as intervening-parties,                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|IV.      | ARVANA COMUNICAÇÕES DO BRASIL
        S.A., a corporation incorporated and existing under the laws of Brazil,
        with its head office at Av. Brigadeiro Faria Lima, 1571, 13. o andar,
        cj. 13A, São Paulo, SP, enrolled at the Corporate Taxpayers Registry
        of the Ministry of Finance (CNPJ/MF) under No. 07.103.201/0001-63 (hereinafter
        referred to as the Company);                                                                           
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|V.       | ARVANA NETWORKS, INC., a corporation
        incorporated and existing under the laws of Barbados, with its head office
        at Suite 3, The Brick House, Bay St., St. Michael, Barbados (hereinafter
        referred to as Networks); and                                                                                                                                                                                                                                 
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|VI.      | TURINCO, INC., a corporation organized
        and existing under the laws of the State of Nevada, United States of America,
        with its head office at 1981 East 4800 South, Suite 100, Salt Lake City,
        Utah 84117, United States of America (hereinafter referred to as "Turinco").                                                                                                                                                                               
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|WHEREAS:
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|A.       | The parties hereto executed that certain Investment
        Agreement on September 8, 2005 (the Investment Agreement),
        whereby, among other things, they regulated the investment to                                                                                                                                                                                                                                                                                   

- 1 -

---

|   | be made by the Investor in the Company and certain rights
      and obligations of each of the parties in connection with such
      investment;                              
|-- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|   |                                                                                                                                                                               
|B. | The Parties have agreed to amend certain agreements
      relating to the transfer of the Transferred Employees to the Company as
      set forth in the Investment Agreement;

NOW
  THEREFORE, the parties agree to enter into this Amendment to Investment Agreement
  (the Amendment) in accordance with the following terms and
  conditions:

|1. | Defined Terms                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|-- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|   | The terms initiated with capital letters
      and not otherwise defined herein shall have the meaning ascribed to them
      in the Investment Agreement.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|2. | Change regarding Globals Contributions to
      the Company                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|   | As per section 1.1 of the Investment Agreement,
      Global has contributed to the capital or otherwise transferred and/or assigned
      to the Company the Transferred Assets, as per the minutes of the shareholders
      meeting of the Company held on September 2, 2005, but not the Transferred
      Employees identified in Schedule 1.1of the Investment Agreement.
      The Parties hereby consent to such change and agree that Global shall transfer
      all of the Transferred Employees to the Company by the Second Closing. The
      effective date of the transfer shall be agreed upon between Investor and
      Global. Global shall remain fully and exclusively liable for all debts,
      obligations and liabilities relating to the Transferred Employees up to
      their transfer to the Company.
|
|
|
|
|
|
|
|
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|3. | Effects on the Construction of the Investment
      Agreement and Amendment of Specific                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|   | Provisions                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|   | In light of section 2 above, the Parties
      further agree to amend the following specific provisions of the Investment
      Agreement, as follows:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|   | (i)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|
|
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|   | (ii)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|
|
|
|
|
|

- 2 -

---

| |       | the transfer of the Transferred Employees and the
      Operation to the Company; (iv) assume full responsibility and promptly pay
      and discharge any debt, obligation or liability, including any loss,
      damage, principal, interest, fine or penalty, associated with or in any
      matter relating to the Transferred Assets and respecting the period
      through the First Closing, and any debt, obligation or liability,
      including any loss, damage, principal, interest, fine or penalty relating
      to the Transferred Employees, the Operation or the Trademarks and
      respecting the period through the Second Closing; and (v) execute and
      deliver from time to time such additional instruments, documents,
      conveyances or assurances and take such other actions as necessary or
      otherwise reasonably requested by Investor to confirm or assure the rights
      and obligations provided for in this Agreement.
| | ----- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |       |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
| | (iii) | Section 5.1(i) is hereby amended and shall hereafter read
      as follows:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
| |       |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
| |       | (i) The Company owns all of the assets purported to
      be owned by the Company, including the Transferred Assets, free and clear
      of any encumbrances, liens, options, shareholders or partners
      agreements, or any other restrictions or rights of third parties. As of
      the date of the Second Closing, the Transferred Employees shall have been
      duly transferred to the Company and Trademarks and the Operation shall be
      transferred to the Company, and shall become the exclusive property of the
      Company, all free and clear of any debts, obligations, encumbrances, liens
      or other restrictions or rights of third parties;                                                                                                                                                                                                                                                                                          
| |       |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
| | (iv)  | Section 7.2(b) is hereby amended and shall hereafter read
      as follows:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
| |       |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
| |       | (b) if there is any asset insufficiency
      (insuficiência ativa) or supervening liability (superveniência passiva)
      with respect to the Operation or with respect to the Trademarks, the
      Transferred Employees, the Transferred Assets or any other asset, right or
      agreement contributed, transferred and/or assigned by Global to the
      Company, as a result of any act, fact, fault, error or omission whatsoever
      occurring or taking place through the date of the Second Closing, with
      respect to the Transferred Employees, the Operation and the Trademarks, or
      through the date of the First Closing, with respect to the other foregoing
      items;                                                                                                                                                                                                                                                                   
| |       |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
| | (v)   | Section 7.2(c) is hereby amended and shall hereafter read
      as follows:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
| |       |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
| |       | (c) any acts, facts or omissions of any kind relating
      in any way to the Trademarks, the Transferred Employees, the Transferred
      Assets, the Company or the Operation occurred or taking place through the
      date of the Second Closing, with respect to the Transferred Employees, the
      Operation and the Trademarks, or through the date of the First Closing,
      with respect to the other foregoing
items;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

|4. | Ratification of other provisions of the Investment
      Agreement                                                                                                
|-- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------
|   |                                                                                                                                                                   
|   | The parties agree that all other provisions of the
      Investment Agreement not expressly amended by this Amendment shall remain
      in full force and effect.

- 3 -

---

|5. | Miscellaneous                                                                                                                     
|-- | ----------------------------------------------------------------------------------------------------------------------------------
|   |                                                                                                                                   
|   | The parties agree that Section 10 - Miscellaneous of the
      Investment Agreement shall be fully applicable to this
  Amendment.

IN
WITNESS WHEREOF, the parties execute this instrument in three counterparts
of same tenor and content, in the presence of the undersigned witnesses.

São Paulo, October 4, 2005.

ARVANA PARTICIPAÇÕES S.A.

|/s/ *Estenao Popovics* | /s/*Jose Augusto Pinto Moreira*
|---------------------- | -------------------------------
|By: Estenao Popovics   | By: Jose Augusto Pinto Moreira 
|Title: Officer         | Title: Director                

GLOINFO 500 SOLUÇÕES EM TELEMÁTICA LTDA.

/s/ *Paulo Santos Mesina*By:Title:


PAULO SANTOS MESSINA

/s/ *Paulo Santos Messina*

LÚCIA SANGIACOMO MESSINA

/s/ *Lucia Sangiacomo Messina*

ARVANA COMUNICAÇÕES DO BRASIL S.A.

|/s/ *Estenao Popovics* | /s/*Jose Augusto Pinto Moreira*
|---------------------- | -------------------------------
|By: Estenao Popovics   | By: Jose Augusto Pinto Moreira 
|Title: Director        | Title: Director                

ARVANA NETWORKS, INC.

|/s/ *Iain Drummond* | ____________________________________________
|------------------- | --------------------------------------------
|By: Iain Drummond   | By:                                         
|Title: President    | Title:                                      

(signatures continue on the following page)

- 4 -

---

(signature page of the Amendment to the Investment Agreement,
  dated October 4, 2005)

TURINCO, INC.

|/s/ *Michael Jervis* | ____________________________________________
|-------------------- | --------------------------------------------
|By: Michael Jervis   | By:                                         
|Title: Director      | Title:                                      

WITNESSES:

|1. ____________________________________________ | 2.
    ____________________________________________
|----------------------------------------------- | ---------------------------------------------------
|Name:                                           | Name:                                              
|RG:                                             | RG:                                                
|CPF:                                            | CPF:                                               

- 5 -

---