**Exhibit 4.6**

**SECONDAMENDMENT**

**TO**

**ELECTRICITYDISTRIBUTION CONCESSION CONTRACT**

**No. 002/1997-ANEEL/CEMIG-ÁREANORTE**

**(NORTHAREA)**

**COMPANHIAENERGETICA DE MINAS GERAIS — CEMIG**

The **BRAZILIAN FEDERAL GOVERNMENT**, hereinafter referred to as the**CONCESSION-GRANTING POWER**, under itspowers conferred by Article 21, Sub-item XII, Subclause “b” of theBrazilian Constitution, upon **delegation** ofcompetence by Decree 4932 of December 23, 2003, as amended by Decree 4970of January 30, 2004, to the **BRAZILIAN NATIONALELECTRICITY AGENCY — ANEEL**, with head office at SGAN, Quadra 603,Module “I”, Brasília, Federal District, registered in the CNPJ/MF under No. 02.270.669/001-29,represented by its Director-General, JERSON KELMAN, bearer of Identity Card RG2.676.547, issued by the SSP/DF, and CPF 155.082.937.87, pursuant to §3 of Article 3-Aof Law 9427 of December 26, 1996, and the terms of sub-item V, Article 10,of Appendix I — Regulations Structure, approved by Decree 2335 of October 6,1997, hereinafter referred to as **ANEEL**,

**COMPANHIAENERGÉTICA DE MINAS GERAIS — CEMIG**, a holder of a concessionfor public electricity generation, transmission and distribution service, withhead office in the Municipality of Belo Horizonte, State of Minas Gerais, atAvenida Barbacena 1200, District of Santo Agostinho, registered in the CNPJ/MFunder No. 17.155.730/0001-64, hereinafter referred to as the **ASSIGNOR**, herein represented in accordance with its Bylawsby its Director-President DJALMA BASTOS DE MORAIS, bearer of Identity Card RG911214, issued by the Army Ministry, and CPF 006.633.526-49, and by itsChief Energy Distribution and Sales Officer JOSE MARIA DE MACEDO, bearer ofIdentity Card RG 6494/D issued by CREA/MG and CPF 002.033.351-04, and

**CEMIGDISTRIBUIÇÃO S.A.,** a wholly owned subsidiary of CompanhiaEnergética de Minas Gerais — CEMIG, with head office in the Municipality ofBelo Horizonte, State of Minas Gerais, at Avenida Barbacena 1200, District ofSanto Agostinho, registered in the CNPJ/MF under No. 06.981.180/001-16,hereinafter referred to as the **CONCESSION HOLDER**,herein represented in accordance with its Bylaws by its Director-PresidentDJALMA BASTOS DE MORAIS, bearer of Identity Card RG 911214, issued by the ArmyMinistry, and CPF 006.633.526-49, and by its Chief Energy Distributionand Sales Officer JOSE MARIA DE MACEDO, holder of Identity Card RG 6494/Dissued by CREA/MG and CPF 002.033.351-04, with

the **STATE OF MINAS GERAIS**, hereinafter referred to as the **CONTROLLING STOCKHOLDER**, as consenting and interveningparty, herein represented by its Governor AÉCIO NEVES DA CUNHA,

do hereby, by thisinstrument and in the best form of law, sign the Second Amendment toElectricity Distribution Concession Contract 002/1997-CEMIG — Área Norte,signed on June 18, 1997, as follows:

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**WHEREAS**

-               within theassumptions of the new model for the Brazilian electricity sector, companiesthat hold distribution service concessions may not operate in activities ofgeneration and transmission, nor carry out the other activities listed in §5, Article 4of Law 9074 of July 7, 1995, as amended by Article 8 of Law 10848, ofMarch 15, 2004;

-               Minas Gerais StateLaw 15290, of August 4, 2004, authorized the stockholding reorganizationof Companhia Energética de Minas Gerais — CEMIG, to segregate its activities, asestablished by Clause 14 of Electricity Distribution Concession Contract No. 002/1997— CEMIG/Área Norte, signed on July 10, 1997;

-               by ANEELAuthorizing Resolution 407, of December 20, 2004, ANEEL agreed to theproposal for transfer of the concessions and stockholders’ equity of CompanhiaEnergética de Minas Gerais — CEMIG, for the purposes of stockholdingrestructuring and segregation of the activities of generation, transmission anddistribution of electricity, with the consequent transfer of goods, plant,premises, rights and obligations to the wholly-owned subsidiary constituted forthis specific purpose;

the parties havenow decided to sign this First Amendment to Electricity Distribution ConcessionContract No. 002/1997 — CEMIG, entered into on July 10, 1997, on thefollowing terms and conditions.

**CLAUSEONE — THE OBJECT**

The object of thepresent Amendment is to formalize the transfer of the concession of the publicelectricity distribution service concession, with the consequent transfer ofassets and plant, rights and obligations to the wholly-owned subsidiary CEMIGDISTRIBUIÇÃO S.A., as established by CLAUSE FOURTEEN — GENERAL PROVISIONS, ofDistribution Concession Contract 002/1997 — CEMIG-ÁREA NORTE in accordance withAuthorizing Resolution 407, of December 20, 2004.

**CLAUSETWO — PRIOR KNOWLEDGE**

CEMIG DISTRIBUIÇÃOS.A. warrants that it is aware of the entire content of Concession Contract002/1997 — CEMIG-ÁREA NORTE, and undertakes to comply with all the clauses andconditions of that contract and its amendments.

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** **

**CLAUSETHREE — RATIFICATION**

All the otherClauses and conditions of Electricity Transmission Concession Contract 002/1997— CEMIG-ÁREA NORTE, as amended by the First Amendment, signed on March 31,2005, are hereby ratified, and those not expressly modified by this presentAmendment remain valid and unchanged, and all their provisions are subrogatedfor all purposes to the company CEMIG DISTRIBUIÇÃO S.A.

Being thus agreed,the parties caused the present instrument to be prepared in 4 (four) copies,which are signed by the representatives of ANEEL, COMPANHIA ENERGÉTICA DE MINASGERAIS — CEMIG, CEMIG  DISTRIBUIÇÃO S.A.and the CONTROLLING STOCKHOLDER, jointly with the witnesses identified below.

Brasília, September 16,2005
|                                      |       | *** *** |
|--------------------------------------|------------|--------------|
| ** **                           |       | *** *** |
| **FOR  ANEEL:**                      |       | *** *** |
| ** **                           |       | *** *** |
| ***(Signature)***                    |       | *** *** |
| ** **                           |       | *** *** |
|                                 | ** ** | ** **   |
| **JERSON  KELMAN**

Director-General | ** ** | ** **   |
|                                 | ** ** | ** **   |
|                                 | ** ** | ** **   |

** **
| **FOR THE ASSIGNOR:**   |       | *** ***                                 |
|-------------------------|------------|----------------------------------------------|
| ** **              |       | *** ***                                 |
| ** **              |       | *** ***                                 |
| ( ***Signature***  )    |       | ( ***Signature*** )                          |
| ** **              |       | *** ***                                 |
| ** **              |       | *** ***                                 |
| DJALMA BASTOS DE MORAIS | ** ** | JOSÉ MARIA DE  MACEDO                   |
| Director-President      | ** ** | Chief Energy  Distribution and Sales Officer |
|                    | ** ** | ** **                                   |
|                    | ** ** | ** **                                   |

** **

** **

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| **FOR THE CONCESSION HOLDER:** |       | *** ***                                 |
|--------------------------------|------------|----------------------------------------------|
| ** **                     |       | *** ***                                 |
| ** **                     |       | *** ***                                 |
| ( ***Signature***  )           |       | ( ***Signature*** )                          |
| ** **                     |       | *** ***                                 |
| ** **                     |       | *** ***                                 |
| DJALMA BASTOS DE MORAIS        | ** ** | JOSÉ MARIA DE  MACEDO                   |
| Director-President             | ** ** | Chief Energy  Distribution and Sales Officer |
|                           | ** ** | ** **                                   |
|                           | ** ** | ** **                                   |

 

 
| **FOR THE CONTROLLING STOCKHOLDER:**   |       | *** *** |
|----------------------------------------|------------|--------------|
| ** **                             |       | *** *** |
| ** **                             |       | *** *** |
| ( ***Signature*** )                    |       | *** *** |
| ** **                             |       | *** *** |
| ** **                             |       | *** *** |
| **AÉCIO  NEVES DA CUNHA**         | ** ** | ** **   |
| Governor of the  State of Minas Gerais | ** ** | ** **   |
|                                   | ** ** | ** **   |
|                                   | ** ** | ** **   |

 

 
| **WITNESSES:**                  |       | *** ***                             |
|---------------------------------|------------|------------------------------------------|
| ** **                      |       | *** ***                             |
| ** **                      |       | *** ***                             |
| ( ***Signature***  )            |       | ( ***Signature*** )                      |
| ** **                      |       | *** ***                             |
| ** **                      |       | *** ***                             |
| Name: Jandir Amorim Nascimento; | ** ** | Name: Sérgio  Luiz Costa Leão; |
| RG: 122 423 SIC/GO;             | ** ** | RG: M 751 437  SSP/MG                    |
| CPF: 057 353 601-59             | ** ** | CPF: 372 754 026-53                      |
|                            | ** ** | ** **                               |

 

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