6-K 1 a12-18978_16k.htm 6-K

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FORM 6-K

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 OF
THE SECURITIES EXCHANGE ACT OF 1934

For the month of August 2012

Commission File Number 1-15224

Energy Company of Minas Gerais

(Translation of Registrant’s Name Into English)

Avenida Barbacena, 1200

30190-131 Belo Horizonte, Minas Gerais, Brazil

(Address of Principal Executive Offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F x Form 40-F o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o

Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes o No x

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): N/A

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Index

Item |  | Description of Item
1. |  | Summary of Minutes of the 540th Meeting of the Board of Directors, July 7, 2012
2. |  | Market Announcement — Cemig signs R$2.1 billion electricity supply contract with Samarco, August 2, 2012
3. |  | Summary of Principal Decisions of the 541st Meeting of the Board of Directors
4. |  | Summary of Minutes of the 541st Meeting of the Board of Directors, August 1, 2012
5. |  | Convocation and Proposal by the Board of Directors to the Extraordinary General Meeting of Stockholders to be held on August 29, 2012
6. |  | Earning Release - Second Quarter 2012
7. |  | Presentation of the Second Quarter 2012 Results
8. |  | Summary of Principal Decisions of the 542nd Meeting of the Board of Directors
9. |  | Summary of Principal Decisions of the 543rd Meeting of the Board of Directors
10. |  | Summary of Principal Decisions of the 544th Meeting of the Board of Directors

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

| COMPANHIA ENERGÉTICA DE MINAS GERAIS – CEMIG
| By: | /s/ Luiz Fernando Rolla
|  | Name: | Luiz Fernando Rolla
|  | Title: | Chief Officer for Finance and Investor Relations

Date: August 27, 2012

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1. Summary of Minutes of the 540 th Meeting of the Board of Directors, July 7, 2012

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COMPANHIA ENERGÉTICA DE MINAS GERAIS – CEMIG

LISTED COMPANY

CNPJ 17.155.730/0001-64 — NIRE 31300040127

BOARD OF DIRECTORS

SUMMARY OF MINUTES

OF THE 540 TH MEETING

Date, time and place: | July 7, 2012 at 9 a.m. at the company’s head office,
| Av. Barbacena 1200, 21th Floor, Belo Horizonte, Minas Gerais, Brazil.

Meeting Committee: | Chairman: | Dorothea Fonseca Furquim Werneck;
| Secretary: | Anamaria Pugedo Frade Barros.

Summary of proceedings:

I The Chairman asked the Board Members present whether any of them had conflict of interest in relation to the matters on the agenda of this meeting, and all stated there was no such conflict of interest.

II The Board approved the minutes of this meeting.

III The Board authorized:

a) Opening of administrative tender proceedings for, and contracting of, temporary provision of outsourced labor or extraordinary extra services, in Cemig D, Cemig GT, Cemig Serviços S.A., Sá Carvalho S.A., Rosal Energia S.A., Empresa de Serviços de Comercialização de Energia Elétrica S.A. and Cemig Trading S.A., for twelve months, able to be extended to a maximum limit of twenty-four months.

b) Provision of a counter-guarantee to Light S.A. by contractual guarantee or surety for up to 2.49% of the debt of approximately R$ 23 billion, to be contracted with the long-term financing that will be contracted by Norte Energia S.A. with the Brazilian Development Bank (BNDES) and onlending agents, for construction of the Belo Monte Hydroelectric Plant. The Board will decide at a future time on signature of the legal instrument of counter-guarantee.

VI The Board oriented:

a) Vote by the representatives of Cemig on the Board of Directors of Light S.A. in favor of authorization to sign the Final Term of Closing between Investminas Participações S.A. — (Investminas) and Light Energia S.A., with Cemig GT and Guanhães Energia S.A. as consenting parties, in relation to the Share Assignment Agreement governing the acquisition by Light Energia of the 51% equity interest held by Investminas in Guanhães Energia.

Av. Barbacena 1200 | Santo Agostinho | 30190-131 Belo Horizonte, MG | Brazil | Tel.: +55 31 3506-5024 | Fax +55 31 3506-5025

This text is a translation, provided for information only. The original text in Portuguese is the legally valid version.

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b) Vote by the representatives of Cemig at the Extraordinary General Meeting of Stockholders of Parati S.A. — Participações em Ativos de Energia Elétrica, to be held on July 11, 2012, in favor of the decision on the price interval for the acquisition of up to 100% of the common shares of Redentor Energia S.A. in circulation, for the purpose of the Company’s exit from the New Mercado and cancellation of it registry as a listed company.

V Withdrawn from the agenda: The matter relating to constitution of a special-purpose company by Transmissora Aliança de Energia Elétrica S.A. — Taesa was withdrawn from the agenda.

VI Discussion: The following spoke on general matters and business of interest to the Company:

Board members;

General Manager, Controller’s Department: Leonardo George de Magalhães.

The following were present:

Board members: |  | Dorothea Fonseca Furquim Werneck, |  | Francelino Pereira dos Santos,
|  | Paulo Roberto Reckziegel Guedes, |  | Fernando Henrique Schüffner Neto,
|  | Djalma Bastos de Morais, |  | Guy Maria Villela Paschoal,
|  | Ricardo Coutinho de Sena, |  | Lauro Sérgio Vasconcelos David,
|  | Antônio Adriano Silva, |  | João Camilo Penna,
|  | Saulo Alves Pereira Junior, |  | Newton Brandão Ferraz Ramos,
|  | Arcângelo Eustáquio Torres Queiroz, |  | Joaquim Francisco de Castro Neto,
|  | Adriano Magalhães Chaves, |  | Paulo Sérgio Machado Ribeiro,
|  | Eduardo Borges de Andrade, |  | Maria Estela Kubitschek Lopes,
|  | Christiano Miguel Moysés, |  | Tarcísio Augusto Carneiro;
Superintendent: |  | Leonardo George de Magalhães; |  |
Secretary: |  | Anamaria Pugedo Frade Barros. |  |

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2. Market Announcement — Cemig signs R$2.1 billion electricity supply contract with Samarco, August 2, 2012

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COMPANHIA ENERGÉTICA DE MINAS GERAIS – CEMIG

LISTED COMPANY

CNPJ 17155.730/0001-64

NIRE 31300040127

MARKET ANNOUNCEMENT

Cemig signs R$ 2.1 billion electricity supply contract with Samarco

Companhia Energética de Minas Gerais – Cemig, a listed company with securities traded on the stock exchanges of São Paulo, New York and Madrid, hereby informs its stockholders, the market and the public — in accordance with Article 12 of Brazilian CVM Instruction 358 of 3 January 3, 2002 and its commitment to best corporate governance practices, that on August 1, 2012 contracts were signed for supply of electricity to industrial units of Samarco, located in Minas Gerais and Espírito Santo states.

With the signing of these contracts, one of the biggest deals ever made in the “Free Market Environment” in Brazil, Cemig provide staggered amounts of energy between 2014 and 2022. The contracts between the two companies have total value of approximately R$ 2.1 billion.

Belo Horizonte, August 2, 2012.

Luiz Fernando Rolla

Chief Officer for Finance and Investor Relations

Av. Barbacena 1200 | Santo Agostinho | 30190-131 Belo Horizonte, MG | Brazil | Tel.: +55 31 3506-5024 | Fax +55 31 3506-5025

This text is a translation, provided for information only. The original text in Portuguese is the legally valid version.

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3. Summary of Principal Decisions of the 541 st Meeting of the Board of Directors

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COMPANHIA ENERGÉTICA DE MINAS GERAIS – CEMIG

LISTED COMPANY

CNPJ 17.155.730/0001-64

NIRE 31300040127

Summary of principal decisions

The Board of Directors of Cemig (Companhia Energética de Minas Gerais), at its 541 st meeting, held on August 1, 2012, decided the following:

1. Change in the composition of the Executive Board:

a. Mr. Fuad Jorge Noman Filho no longer to be Chief Officer for the Gas Division.

b. Election, on an interim basis, of Mr. João Luiz Senra de Vilhena as Chief Officer for the Gas Division, to complete the current period of office of the appointment, that is to say until the first meeting of the Board of Directors held after the Annual General Meeting of 2015.

2. Appointment of a Director of Gasmig:

Mr. João Luiz Senra de Vilhena was appointed Chief Executive Officer of Companhia de Gás de Minas Gerais — Gasmig, on an interim basis, to complete the current period of office of that appointment, that is to say until the first meeting of the Board of Directors held after the Annual General Meeting of 2014.

3. Convocation of an Extraordinary General Meeting of Stockholders, to be held on August 29, 2012 at 11 a.m., to consider a change in the composition of the Board of Directors.

4. Grant of a guarantee by Cemig to Norte Energia.

5. Signature, by Cemig GT, of a private instrument to constitute a consortium.

Av.Barbacena, 1200 - Santo Agostinho - CEP 30190-131

Belo Horizonte - MG - Brasil - Fax (31)3506-5025 - Tel.: (31)3506-5024

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4. Summary of Minutes of the 541 st Meeting of the Board of Directors, August 1, 2012

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COMPANHIA ENERGÉTICA DE MINAS GERAIS – CEMIG

LISTED COMPANY

CNPJ 17.155.730/0001-64 — NIRE 31300040127

BOARD OF DIRECTORS

SUMMARY OF MINUTES

OF THE 541 st MEETING

Date, time and place: | August 1, 2012 at 8.30 a.m. at the company’s head office,
| Av. Barbacena 1200, 21 st Floor, Belo Horizonte, Minas Gerais, Brazil.
Meeting Committee: | Chair: | Dorothea Fonseca Furquim Werneck;
| Secretary: | Alexandre de Queiroz Rodrigues

Summary of proceedings:

I Conflict of interest: The Chair asked the Board Members present whether they had any conflict of interest in the matters on the agenda of this meeting, and all said there was no such conflict of interest.

II The Board approved:

a) The proposal, by the Chair, that Mr. Fuad Jorge Noman Filho should not be Chief Officer for the Gas Division; and to elect, on an interim basis, as Chief Officer of the Gas Division:

Mr. João Luiz Senra de Vilhena | — Brazilian, married, economist, resident and domiciled in Belo Horizonte, Minas Gerais, at Rua Espírito Santo 1996/1102, Lourdes, CEP 30160-032, bearer of Identity Card 50289-SSPMG and CPF 221805916-91,

to complete the same period of office as remains for the other Chief Officers, that is to say, until the first meeting of the Board of Directors held after the Annual General Meeting of 2015.

b) The proposal by the Chair, that the members of the Board of Directors should authorize her to call an Extraordinary General Meeting of Stockholders, to be held on August 29, 2012, at 11 a.m., to change the composition of the Board of Directors, and in the event of there not being a quorum, to make second convocation of stockholders within the legal period.

c) The minutes of this meeting.

III The Board authorized:

a) Giving of a surety guarantee, without joint liability, limited to 7.28% of the total value (to be up to R$ 1 billion) of the issue of Promissory Notes to be made by Norte Energia S.A., with tenor of six months, interest rate equivalent to 109% of accumulated application of the Interbank CD (CDI) Rate, structuring fee of 0.33% of the total amount of the issue, and amortization at maturity. Said percentage represents the proportionate indirect holding of Cemig GT in the share capital of Norte Energia S.A.

Av. Barbacena 1200 | Santo Agostinho | 30190-131 Belo Horizonte, MG | Brazil | Tel.: +55 31 3506-5024 | Fax +55 31 3506-5025

This text is a translation, provided for information only. The original text in Portuguese is the legally valid version.

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b) Signature by Cemig GT of a private instrument to constitute a consortium, with:

Eletrobrás, | Electricité de France S.A., | Construções e Comércio Camargo Corrêa S.A.,
Eletronorte, | Endesa Brasil S.A, | Copel Geração e Transmissão S.A.,
Neoenergia Investimentos S.A., and | GDF Suez Energy Latin America Participações Ltda.,

for development of studies relating to the hydroelectric potential of the Tapajós Complex.

IV The Board submitted to the Extraordinary General Meeting of Stockholders a proposal that the representatives of Cemig at the Extraordinary General Meetings of Stockholders of Cemig D and Cemig GT, to be held on August 29, 2012, should vote in favor of alteration of the composition of the Board of Directors, if there is a change in the composition of the Board of Directors of Cemig.

V The Board appointed Mr. João Luiz Senra de Vilhena as Chief Executive Officer of Gasmig, on an interim basis, to serve the rest of the current period of office of that appointment, that is to say until the first meeting of the Board of Directors held after the Annual General Meeting of 2014, or until his successor, duly elected, is sworn in.

VI Executive Board: The Chairman stated that the members of the Executive Board are now as follows:

CEO: |  | Djalma Bastos de Morais;
Deputy CEO: |  | Arlindo Porto Neto;
Chief Trading Officer: |  | José Raimundo Dias Fonseca;
Chief New Business Development Officer: |  | Fernando Henrique Schüffner Neto;
Chief Corporate Management Officer: |  | Frederico Pacheco de Medeiros;
Chief Distribution and Sales Officer: |  | José Carlos de Mattos;
Chief Finance and Investor Relations Officer: |  | Luiz Fernando Rolla;
Chief Counsel: |  | Maria Celeste Morais Guimarães;
Chief Generation and Transmission Officer: |  | Luiz Henrique de Castro Carvalho;
Chief Institutional Relations and Communication Officer: |  | Luiz Henrique Michalick;
Chief Officer for the Gas Division: |  | João Luiz Senra de Vilhena.

VII Declaration by incoming Officer: The Chief Officer elected declared — in advance — that he is not subject to any prohibition on exercise of commercial activity, that he does not occupy any post in any company that could be considered a competitor of the Company, and that he does not have nor represent any interest conflicting with that of Cemig, and assumed a solemn undertaking to become aware of, obey and comply with the principles, ethical values and rules established by the Code of Ethical Conduct of Government Workers and Senior Administration of the State of Minas Gerais.

VIII The Chair spoke on general matters and business of interest to the Company.

The following were present:

Board members: | Dorothea Fonseca Furquim Werneck, Djalma Bastos de Morais, Antônio Adriano Silva, Arcângelo Eustáquio Torres Queiroz, Guy Maria Villela Paschoal, Maria Estela Kubitschek Lopes, Paulo Roberto Reckziegel Guedes, |  | Adriano Magalhães Chaves, José Augusto Gomes Campos, Newton Brandão Ferraz Ramos, Paulo Márcio de Oliveira Monteiro, Tarcísio Augusto Carneiro, Christiano Miguel Moysés, Fernando Henrique Schüffner Neto, Marco Antonio Rodrigues da Cunha. |
Secretary: | Alexandre de Queiroz Rodrigues. |  |

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5. Convocation and Proposal by the Board of Directors to the Extraordinary General Meeting of Stockholders to be held on August 29, 2012

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COMPANHIA ENERGÉTICA DE MINAS GERAIS – CEMIG

LISTED COMPANY

CNPJ 17.155.730/0001-64 — NIRE 31300040127

EXTRAORDINARY GENERAL MEETING OF STOCKHOLDERS

CONVOCATION

Stockholders are hereby called to an Extraordinary General Meeting of Stockholders to be held on August 29, 2012 at 11 a.m. at the company’s head office, Av. Barbacena 1200, 21 st floor, in the city of Belo Horizonte, Minas Gerais, Brazil, to decide on the following matters:

a) Change in the composition of the Board of Directors, as a result of resignation.

b) Orientation of the vote of the representatives of Cemig (Companhia Energética de Minas Gerais) in the Extraordinary General Meetings of Stockholders of Cemig D (Cemig Distribuição S.A.) and of Cemig GT (Cemig Geração e Transmissão S.A.) to be held on the same day as this meeting, if there is a change in the composition of the Board of Directors of Cemig.

Multiple voting system: Under Article 3 of CVM Instruction 165 of December 11, 1991, adoption of the multiple voting system for election of members of the company’s Board requires the vote of stockholders representing a minimum percentage of 5% (five per cent) of the voting stock.

Proxy votes: Any stockholder who wishes to be represented by proxy at the said General Meeting of Stockholders should obey the terms of Article 126 of Law 6406 of 1976, as amended, and of the sole paragraph of Clause 9 of the Company’s by-laws, by exhibiting at the time, or depositing, preferably by August 27, 2012, proofs of ownership of the shares, issued by a depositary financial institution, and a power of attorney with specific powers, at Cemig’s Corporate Executive Secretariat Office (Superintendência da Secretaria Geral e Executiva Empresarial) at Av. Barbacena, 1200 — 19th Floor, B1 Wing, Belo Horizonte, Minas Gerais.

Belo Horizonte, August 1, 2012.

Dorothea Fonseca Furquim Werneck

Chair of the Board of Directors

Av. Barbacena 1200 | Santo Agostinho | 30190-131 Belo Horizonte, MG | Brazil | Tel.: +55 31 3506-5024 | Fax +55 31 3506-5025

This text is a translation, provided for information only. The original text in Portuguese is the legally valid version.

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PROPOSAL

BY THE BOARD OF DIRECTORS

TO THE

EXTRAORDINARY GENERAL MEETING OF STOCKHOLDERS

TO BE HELD ON

AUGUST 29, 2012

Dear Stockholders:

The Board of Directors of Companhia Energética de Minas Gerais (Cemig),

· WHEREAS:

a) an Extraordinary General Meeting of Stockholders of Cemig will be held to change the composition of the Board of Directors;

b) Clause 11, Paragraph 1, of Cemig’s by-laws states:

“The structure and composition of the Board of Directors and of the Executive Board of the Company shall be identical in the wholly-owned subsidiaries Cemig Distribuição S.A and Cemig Geração e Transmissão S.A., with the exception that only the subsidiary Cemig Distribuição S.A shall have a Chief Energy Distribution and Sales Officer and the respective Department, and only the subsidiary Cemig Geração e Transmissão S.A. shall have a Chief Energy Generation and Transmission Officer and the respective Department.” ;

c) Clause 8 of the by-laws of Cemig D and of Cemig GT states:

“The Company’s Board of Directors shall be made up of 14 (fourteen) members and an equal number of substitute members. One of the members shall be its Chairman and another its Vice-Chairman, all being elected and subject to dismissal at any time by the General Meeting of Stockholders, for a period of office of 3 (three) years, and able to be reelected.

§ 1 The members of the Board of Directors must, obligatorily, be the same members of the Board of Directors of the sole stockholder, Cemig.”;

· hereby now proposes to you:

that orientation should be given to the representatives of Cemig in the Extraordinary General Meetings of Stockholders of Cemig Distribuição S.A. (“Cemig D”) and Cemig Geração e Transmissão S.A. (“Cemig GT”), to be held on the same day for which the EGM of Cemig is called, to vote in favor of the alteration of the composition of the Boards of Directors of those companies, if there is a change in the composition of the Board of Directors of Cemig.

Belo Horizonte, August 1, 2012.

Dorothea Fonseca Furquim Werneck | Paulo Roberto Reckziegel Guedes
Djalma Bastos de Morais | Adriano Magalhães Chaves
Antônio Adriano Silva | José Augusto Gomes Campos
Arcângelo Eustáquio Torres Queiroz | Newton Brandão Ferraz Ramos
Guy Maria Villela Paschoal | Paulo Márcio de Oliveira Monteiro
Maria Estela Kubitschek Lopes | Tarcísio Augusto Carneiro

Av. Barbacena 1200 | Santo Agostinho | 30190-131 Belo Horizonte, MG | Brazil | Tel.: +55 31 3506-5024 | Fax +55 31 3506-5025

This text is a translation, provided for information only. The original text in Portuguese is the legally valid version.

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APPENDIX 1

Information indicated in Items 12.6 to 12.10 of the Reference Form, on the candidate for membership of the Board of Directors nominated by the controlling stockholder.

12.6. Information about the Member of the Board of Directors:

Name: Fuad Jorge Noman Filho

Age: 65

Profession: Economist

CPF: 009.880.816-87

Date of birth: 30-06-1947

Position: Sitting member

Date of election: 29-08-2012

Date of swearing-in: 29-08-2012

Period of office: Until the Annual General Meeting to be held in 2014.

Other positions or functions held or exercised in the Company: Does not hold any other position.

Whether was elected by the controlling stockholder or not: Yes

12.7. Please supply the information mentioned in item 12.6 in relation to the members of the committees formed under the by-laws, and also of the audit committee, the risk committee, the finance committee and the remuneration committee, even if such committees or structures are not created by the by-laws:

Does not hold any other position.

12.8. For each of the managers and members of the Audit Board, supply:

a. Summary CV, containing:

I. Principal professional experience in the last 5 years, indicating:

· Name of company:

· Positions and functions inherent to the position;

· Principal activity of the company in which such experiences took place, highlighting the companies or organizations that are: (i) Cemig companies, or (ii) companies of parties directly or indirectly holding at least 5% of the Common (ON) or preferred (PN) shares in Cemig.

Minas Gerais State Transport and Public Works Secretary — from 2007 until June 2010

Chairman, Companhia de Gás de Minas Gerais — from January 3, 2011 to Aug. 1, 2012.

Member of the Board of Directors of Companhia de Gás de Minas Gerais — from Jan. 20, 2011 until Aug. 1, 2012

Chief Officer for the Gas Division of: Cemig, Cemig D and Cemig GT — from Jan. 3, 2011 until Aug 1, 2012.

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Minas Gerais State Secretary for Coordination of Investments — since Aug. 1, 2012

Extraordinary Secretary for the Soccer World Cup, of Minas Gerais State — since Aug. 2, 2012

II. Indication of all the management posts that the person occupies or has occupied in companies registered with the CVM.

Chief Officer for the Gas Division of: Cemig, Cemig D and Cemig GT — from Jan. 3, 2011 until Aug 1, 2012.

b. Description of any of the following events that have taken place in the last 5 years:

i. Any criminal conviction:

x No

o Yes — If yes, describe:

ii. Any guilty judgment in an administrative proceeding of the CVM, and the penalties applied:

x No

o Yes — If yes, describe:

iii. Any court or administrative judgment against which there is no further appeal which has suspended or disqualified the person from carrying out any professional or commercial activity.

x No

o Yes — If yes, describe:

12.9. State whether the candidate has a conjugal relationship, stable union or family relationship up to the second degree with:

a) Any other manager/s of Cemig.

x No

o Yes — If yes, describe the relationship:

b) Any manager/s of any company/ies directly or indirectly controlled by Cemig

x No

o Yes — If yes, describe the relationship and the controlled company:

c) Any administrator/s of the State of Minas Gerais

x No

o Yes — If yes, describe:

12.10. State whether, in 2009, 2010, 2011 and/or 2012 the candidate had any relationship of subordination with:

a. Any company that was directly or indirectly controlled by Cemig;

o No.

x Yes — If yes, describe the relationship and the company/ies:

Chairman, Companhia de Gás de Minas Gerais — Gasmig — from January 3, 2011 to Aug. 1, 2012.

Chief Officer for the Gas Division of: Cemig, Cemig D and Cemig GT — from Jan. 3, 2011 until Aug 1, 2012.

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b. The State of Minas Gerais;

o No.

x Yes — If yes, describe the relationship:

Minas Gerais State Transport and Public Works Secretary — from 2007 until June 2010

Minas Gerais State Secretary for Coordination of Investments — since Aug. 1, 2012

Extraordinary Secretary for the Soccer World Cup, of Minas Gerais State — since Aug. 2, 2012

c. — and, if material, with any supplier, client, debtor or creditor of Cemig, or of any of its subsidiaries, or of the State of Minas Gerais, or of the parent companies or subsidiaries of any of these.

x No

o Yes — If yes, describe the relationship and the company/ies:

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6. Earning Release - Second Quarter 2012

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–– Your invitation from Cemig

Announcement of second quarter 2012 results

VIDEO WEBCAST AND CONFERENCE CALL

August 16, 2012 (Thursday), at 3 PM (Brasília time)

The transmission of Cemig’s results will have simultaneous translation into English

and can be

seen in real time by Video Webcast, at http://ri.cemig.com.br —

or heard by conference call, on:

(11) 4688 6341

Password: CEMIG

Playback of Video Webcast:

Website: http://ri.cemig.com.br

Click on the banner and download.

Available for 90 days

Playback of conference call:

Tel.: (11) 4688-6312
Password:

6442091 (Portuguese)

7744710# (English)
Available: August 16 through 22, 2012

For any questions please call +55 31 3506-5024.

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–– Cemig’s Executive Investor Relations Team

· Chief Finance and Investor Relations Officer

Luiz Fernando Rolla

· General Manager, Investor Relations

Antonio Carlos Vélez Braga

· Manager, Investor Market

Stefano Dutra Vivenza

–– Cemig: your IR contacts

http://ri.cemig.com.br/

ri@cemig.com.br

Tel.: +55-31 3506-5024

Fax: +55-31 3506-5025

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CONTENTS

— YOUR INVITATION FROM CEMIG | 22
— CEMIG’S EXECUTIVE INVESTOR RELATIONS TEAM | 23
— DISCLAIMER | 25
— FROM THE CEO AND CFO | 26
— HIGHLIGHTS OF SECOND QUARTER 2012 | 27
— APPRECIATION IN CEMIG’S SHARE PRICES | 31
— KEY OPERATIONAL FIGURES | 32
— ADOPTION OF IFRS | 32
— PROFIT AND LOSS ACCOUNTS | 33
— CEMIG’S CONSOLIDATED ELECTRICITY MARKET | 34
— THE ELECTRICITY MARKET OF CEMIG D | 38
— TAXES AND CHARGES APPLIED TO REVENUE | 43
— FINANCIAL REVENUES (EXPENSES) | 46
— INCOME TAX AND SOCIAL CONTRIBUTION TAX | 47
— EBITDA | 48
— LIGHT – HIGHLIGHTS OF 2Q 2012 | 49
— TAESA – HIGHLIGHTS OF 2Q 2012 | 50
— PROFIT AND LOSS ACCOUNTS, BY ACTIVITY | 52
— FINANCIAL STATEMENTS SEPARATED BY COMPANY | 53
— PERMITTED ANNUAL REVENUE – RAP | 54
— ATTACHMENTS | 55
CEMIG D: TABLES | 55
CEMIG GT – TABLES | 56
CEMIG CONSOLIDATED – TABLES | 57

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–– Disclaimer

Certain statements and estimates in this material may represent expectations about future events or results, which are subject to risks and uncertainties that may be known or unknown. There is no guarantee that the events or results will take place as referred to in these expectations.

These expectations are based on the present assumptions and analyses from the point of view of our management, in accordance with their experience and other factors such as the macroeconomic environment, and market conditions in the electricity sector; and on expected future results, many of which are not under Cemig’s control.

Important factors that could lead to significant differences between actual results and the projections about future events or results include Cemig’s business strategy, Brazilian and international economic conditions, technology, Cemig’s financial strategy, changes in the electricity sector, hydrological conditions, conditions in the financial and energy markets, uncertainty on our results from future operations, plans and objectives, and other factors. Because of these and other factors, the real results of Cemig may differ significantly from those indicated in or implied by such statements.

The information and opinions herein should not be understood as a recommendation to potential investors, and no investment decision should be based on the veracity, currentness or completeness of this information or these opinions. None of Cemig’s professionals nor any of their related parties or representatives shall have any liability for any losses that may result from the use of the content of this material.

To evaluate the risks and uncertainties as they relate to Cemig, and to obtain additional information about factors that could originate different results from those estimated by Cemig, please consult the section on Risk Factors included in the Reference Form filed with the Brazilian Securities Commission — CVM — and on the 20-F form filed with the U.S. Securities and Exchange Commission — SEC. .

(Figures are in R$ ‘000, except where otherwise indicated)

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–– From the CEO and CFO

Cemig’s CEO, Mr. Djalma Bastos de Morais, comments:

“With a diversified portfolio of businesses, Cemig proves its high capacity for generation of cash and addition of value for shareholders, validating the correctness nature of the Company’s Long-term Strategic Plan. Its operational efficiency and great financial discipline ensure success in the execution of these projects, earning for Cemig the status of leading consolidator of the Brazilian power industry.”

Cemig’s Chief Financial Officer, Luiz Fernando Rolla, says:

“In this second quarter our Company has continued to provide consistent, robust cash flow, as a result of our operations that continually to add value for our shareholders. Our Ebitda in the quarter is a record R$ 1.4 billion, up 14% year-on-year, benefiting from our policy of maintaining high levels of operational efficiency. This excellence is reflected in our net income, of R$ 604mn in the period, 15% more than in the second quarter of 2011. This new level of results reflects the correctness of our strategy of growth through acquisitions and new projects, within the process of consolidation of the sector. Our solid cash position of R$ 2.3 billion provides the possibility for execution of our Long-term Strategic Plan, guaranteeing not only our policies of dividends and debt management, but also the execution of planned investments, including those associated with acquisition opportunities. The excellent results that we now present show that we continue to add value, in a continuous and sustainable manner, for all our

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shareholders and indeed stakeholders. Initially, on the next page, we give the headline items of the 2Q12 figures:”

–– Highlights of second quarter 2012

· Cash flow, measured by Ebitda, of R$ 1.4 billion in 2Q12, 14.0% higher than in 2Q11.

· Net income 16.0% higher year-on-year in 2Q12, at the significant figure of R$ 604 million.

· Net revenues of R$ 4.4 billion in 2Q12, up 16.0% from 2Q11.

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–– The Brazilian economic context

The IMF is indicating expectations for global growth of 3.5% in 2012 and 3.9% in 2013. The slower recovery in the United States, and the debt crisis in Europe, have had a negative effect. Forecast growth rates for the United States are 2.0% for 2012 and 2.3% for 2013 — and for the Eurozone, contraction is expected, of 0.5% in 2012, and 0.7% in 2013. For the emerging economies, the main challenge is dealing with weaker total international trade and increased volatility in the capital markets. Growth of Chinese GDP in 2012, in the context of slowing growth rates globally, is expected to be 8.0%.

Brazil continues to hold a highlight position in the context of the international uncertainty and caution. Its public debt as a percentage of GDP has been contracting since 2003, and is now 37%. This level continues to fall, while the debt indicators of mature economies, in the world context, are high and growing.

The Central Bank’s Focus Report of July 30, 2012 gives a forecast of 4.98% inflation, as measured by the IPCA index(1). With prices under control, it became possible to reduce the basic interest rate — the Selic Rate — to a historic low of 8.0% p.a., a level that still allows the monetary authority broad scope for further expansionary measures.

Also, Brazil now has record levels of international reserves — close to US$ 375 billion — which makes the country now a net external creditor, with high liquidity in US dollars. With the confidence of foreign investors, the Brazilian economy continues to receive high levels of direct investment (approximately 2.5% of GDP in the first half of 2012). These investments, with good expected returns in the medium and long term, show the optimistic outlook of the investor market on Brazil’s future.

With the fiscal and monetary stimulus measures, GDP growth is expected to increase in the second half of 2012, to a peak of around 4.5%, annualized, starting in the first quarter of 2013. The Central Bank’s expectation

(1) Expanded National Consumer Price Index.

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for GDP growth in 2012 is 1.9%(2).

This level of growth outlook is corroborated by an average monthly wage of R$ 1,725.60, representing real growth of 5% from May 2011 to May 2012. It has contributed to the low level of unemployment, currently at a historic low of 5.8% of the economically active population. This indicator has been persistently lower than corresponding indicators in the majority of the mature economies.

A highlight in this context is Brazil’s robust financial system, with rigid rules controlling capitalization of banks, and low exposure risk, providing the possibility of sustainable economic growth for the country over the long term. Brazilian banks’ capital reserves are currently at an average level of around 16%, higher than the 11% required by the Brazilian legislation, and the 8% level set for the Basle III Index.

In this context Brazil’s lending sector continues to expand, enabling growth of a major consumer market, while default continues to be at acceptable levels.

Minas Gerais is the Brazilian state in which Cemig has its largest presence, and has grown faster than the rest of the country. In the first quarter of 2012 the year-on-year growth of its economy was 2.1%, compared to 0.8% for Brazil as a whole. Similarly, the state’s unemployment rate is one of the Brazil’s lowest, at 4.8% of the economically active population in May 2012, and continues to fall. The State of Minas Gerais was recently given the top rating (AAA) on the Brazilian scale by the risk rating agency Standard & Poor’s — another contribution to the state’s image as a leader in the nation. In the world context, the state’s ratings give a solid situation and financial liquidity.

(2) Brazilian Central Bank Focus Report, July 30, 2012.

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Total Brazilian electricity consumption in the second quarter of 2012 was 111,531,759 GWh, 4.45% more than in 2Q11. Consumption increased in all consumer categories, led by commerce, in which consumption was up 8.54% year-on-year. Residential consumption grew 6.52%, and industrial consumption 0.38% — with growth in the other consumer categories reported as 8.13%.

Brazilian electricity consumption, GWh

|  | 2Q12 |  | 2Q11 |  | % |
Total |  | 111,531,759 |  | 106,778,304 |  | 4.45 |
Residential |  | 29,019,542 |  | 27,242,323 |  | 6.52 |
Industrial |  | 46,149,606 |  | 45,976,145 |  | 0.38 |
Commercial |  | 19,557,253 |  | 18,018,459 |  | 8.54 |
Other |  | 16,805,358 |  | 15,541,377 |  | 8.13 |

Source: Brazilion Mining and Energy Ministry. Compilation: Cemig.

For continued economic growth, the Brazilian federal government has been investing in infrastructure through its Second Accelerated Growth Program (“PAC 2”), which aims to see R$ 1.1 trillion allocated in electricity: R$ 461.6bn by 2014, and R$ 626.9bn after 2014. Plans are in progress for 76 new plants, to add 26,252 MW to Brazil’s total generation capacity; and 29 transmission lines and 19 substations are in the process of construction under the program.

R$ 55.1 billion has been invested in energy under the PAC 2 — in electricity generation and transmission, oil and natural gas exploration, refining and petrochemicals, revitalization of the ship building industry and collection, storage and transport of renewable fuels.

According to the Energy Research Company (EPE) of the Mining and Energy Ministry, Brazilian energy consumption has grown faster than the country’s overall growth rate — as the elasticities in this chart indicate. Current plans and outlook now indicate a more sustainable ratio of electricity consumption growth to GDP in the period of 2011 through 2021. Total Brazilian electricity consumption is expected to grow at 4.5% over this period, to 736,000 GWh at the end of 2021(3).

(3) Forecasts by EPE and Mining and Energy Ministry.

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— Appreciation in Cemig’s share prices

Share |  | Ticker |  | Currency |  | Close of June 2012 |  | Close of March 2012 |  | Change in period |
Cemig PN |  | CMIG4 |  | R$ |  | 37.53 |  | 33.52 |  | 11.96 | %
Cemig ON |  | CMIG3 |  | R$ |  | 31.80 |  | 28.94 |  | 9.90 | %
ADR PN |  | CIG |  | U$ |  | 18.42 |  | 18.28 |  | 0.78 | %
ADR ON |  | CIG.C |  | U$ |  | 15.64 |  | 15.79 |  | -0.97 | %
Cemig ON (Latibex) |  | XCMIG |  | EUR |  | 14.63 |  | 17.92 |  | -18.38 | %
Ibovespa |  | Ibovespa |  | — |  | 54.354 |  | 64.510 |  | -15.74 | %
IEEX |  | IEEX |  | — |  | 35.415 |  | 35.281 |  | 0.38 | %

Sources: Economática, Latibex.

Brazil’s leading stock index, the Ibovespa, has varied in response to the uncertain worldwide economic context, with a significant contraction of 15.74% in 2Q12. In this context, however, Cemig’s preferred share (CMIG4) and common share (CMIG3) were once again outstanding, with gains of 11.96% and 9.90% respectively, in the quarter — also exceeding the Brazilian Electricity Stock Index (IEEX), which rose 0.38% in the quarter.

This significant performance by Cemig’s shares in this quarter reflects the reputation that Cemig has won by addition of value for its shareholders — which is also evidenced by its strong policy of distribution of dividends. In April 2012 Cemig approved payment to shareholders of 53.58% of the net income for 2011 — a total of R$ 1.294 billion in dividends. This will be paid in two installments, and represents a dividend yield of 4.4% for the PN shares and 5.5% for the ON shares(4).

(4) Based on stock prices on May 18, 2012.

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— Key operational figures

Item |  | 2Q11 |  | 2Q11 |  | (%) |
Electricity sold, GWh |  | 16,907 |  | 16,963 |  | (0.17 | )
Gross revenue |  | 6,306 |  | 5,504 |  | 14.56 |
Net revenue |  | 4,414 |  | 3,805 |  | 16.01 |
Ebitda |  | 1,433 |  | 1,253 |  | 14.87 |
Net income |  | 604 |  | 523 |  | 15.52 |

— Adoption of IFRS

The results in this release are reported under the new Brazilian accounting practices, resulting from the harmonization of Brazilian accounting rules with IFRS (International Financial Reporting Standards).

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— PROFIT AND LOSS ACCOUNTS

|  | Consolidated |
|  |  |  | 2Q11 |
|  | 2Q12 |  | Reclassified |
REVENUE |  | 4,413,940 |  | 3,804,769 |
OPERATIONAL COSTS |  |  |  |  |
COST OF ELECTRICITY AND GAS |  |  |  |  |
Electricity bought for resale |  | (1,384,490 | ) | (1,016,344 | )
Charges for the use of the transmission grid |  | (243,731 | ) | (192,636 | )
Gas purchased for resale |  | (117,434 | ) | (80,465 | )
|  | (1,745,655 | ) | (1,289,445 | )
COST OF OPERATION |  |  |  |  |
Personnel and managers |  | (223,539 | ) | (276,722 | )
Materials |  | (14,494 | ) | (29,000 | )
Outsourced services |  | (170,390 | ) | (224,202 | )
Depreciation and amortization |  | (236,625 | ) | (187,490 | )
Operational (Provisions) / Reversals |  | 18,065 |  | (7,813 | )
Royalties for use of water resources |  | (46,243 | ) | (36,356 | )
Construction cost |  | (422,323 | ) | (427,253 | )
Others |  | (16,600 | ) | (39,772 | )
|  | (1,112,149 | ) | (1,228,608 | )
TOTAL COST |  | (2,857,804 | ) | (2,518,053 | )
GROSS PROFIT |  | 1,556,136 |  | 1,286,716 |
OPERATIONAL EXPENSES |  |  |  |  |
Selling expenses |  | (28,330 | ) | (66,642 | )
General and administrative expenses |  | (218,818 | ) | (147,317 | )
Other operational expenses (revenues) |  | (121,032 | ) | (56,319 | )
|  | (368,180 | ) | (270,278 | )
Operational profit (loss) before Equity gain (loss), Financial revenue (expenses) and Taxes |  | 1,187,956 |  | 1,016,438 |
Equity gain (loss) on subsidiaries |  | (656 | ) | — |
Financial revenues |  | 223,164 |  | 262,581 |
Financial expenses |  | (525,796 | ) | (496,813 | )
Profit before taxes |  | 884,668 |  | 782,206 |
Income tax and Social Contribution tax |  | (375,486 | ) | (312,162 | )
Deferred income tax and Social Contribution tax |  | 95,050 |  | 53,013 |
PROFIT (LOSS) FOR THE PERIOD |  | 604,232 |  | 523,057 |
Basic and diluted profit per preferred share |  | 0.82 |  | 0.77 |
Basic and diluted profit per common share |  | 0.82 |  | 0.77 |

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— Cemig’s consolidated electricity market

The figures we report for Cemig’s market include the sale of electricity by: Cemig D, Cemig GT consolidated (Cemig GT plus its proportionate holdings in Cachoeirão, Pipoca and the Parajuru, Morgado and Volta do Rio wind farms); the subsidiaries and affiliates (Horizontes, Ipatinga, Sá Carvalho, Barreiro, Cemig PCH, Rosal and Capim Branco); and Light (in proportion to Cemig’s holding).

This includes: sales of electricity to both captive and free consumers, in the concession area of Minas Gerais and outside that state; the sales of electricity to other agents of the electricity sector in the Free and Regulated Markets; the sales under the Proinfa program to encourage alternative electricity sources; and the sales on the CCEE (the wholesale market) — eliminating transactions between companies of the Cemig group.

Electricity consumption in Cemig’s concession area in 2Q12 was 4.91% higher than in 2Q11. This reflects the constant increase in Cemig’s total number of clients — to a total of 11,489,000 consumers at the end of 2Q12, 1.7% more than in 2Q11. Of this total, Cemig D serves 7.4 million, an increase of 3.3% in 12 months; Light serves 4.1 million, a decrease of 1.0% in 12 months; Cemig GT has 337 clients, 18.7% more than at the end of 2Q11; and the subsidiary and affiliate companies have 21 clients.

This growth can be seen in detail in the separate consumer categories, as follows:

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Residential:

Residential consumption represented 16.8% of the total electricity sold by Cemig in 2Q12. The growth of 8.4% over 12 months is associated with connection of new consumers, and the increase in consumption of goods and services by private consumers due to the more favorable conditions of the Brazilian economy, with the vigor of the employment market being maintained, and growth in total real wages, associated with expansion of the supply of credit.

Industrial:

Consumption by Free Consumer clients represented 38.3% of the total volume of electricity transacted by Cemig in 1Q122 which is 0.3% less than in 2Q11. The reduction basically reflects reduction of industrial activity in Cemig’s concession area.

Commercial:

This total volume of electricity transacted with this user group accounted for 11.6% of Cemig’s total in 2Q12, and was 13.4% more than the volume transacted in 2Q11. This growth reflects the strong domestic consumer market, especially final consumption by private consumers.

Rural:

Rural consumption, representing 4.2% of total electricity sold by Cemig, was 15.5% higher than in 2Q11, following the connection of 101,606 new consumers in the interval of twelve months.

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Other consumer categories:

The total of other types of consumption in 2011 — by public authorities, public illumination, public services, and Cemig’s own consumption — represented 6.4% of Cemig’s total transactions in electricity in the quarter, and was 8.0% higher than in 2Q11.

|  | MWh (*) |
|  | 2Q12 |  | 2Q11 |  | Change % |
Residential |  | 2,837,582 |  | 2,618,129 |  | 8.38 |
Industrial |  | 6,473,564 |  | 6,490,521 |  | (0.26 | )
Commercial, services and others |  | 1,964,043 |  | 1,731,748 |  | 13.41 |
Rural |  | 705,939 |  | 611,540 |  | 15.44 |
Public authorities |  | 342,467 |  | 306,349 |  | 11.79 |
Public illumination |  | 361,165 |  | 344,169 |  | 4.94 |
Public service |  | 382,739 |  | 353,690 |  | 8.21 |
Subtotal |  | 13,067,499 |  | 12,456,146 |  | 4.91 |
Own consumption |  | 15,572 |  | 14,431 |  | 7.91 |
Uninvoiced supply, net |  | — |  | — |  | — |
|  | 13,083,071 |  | 12,470,577 |  | 4.91 |
Wholesale supply to other concession holders |  | 3,256,062 |  | 3,411,595 |  | (4.56 | )
Transactions in electricity on the CCEE |  | 547,070 |  | 1,040,058 |  | (47.40 | )
Sales under the Proinfa program |  | 20,954 |  | 13,317 |  | 57.35 |
Total |  | 16,907,157 |  | 16,935,547 |  | (0.17 | )

(*) The information in MWh has not been reviewed by the external auditors.

This chart shows the breakdown of the Cemig Group’s sales to final consumers:

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— The electricity market of Cemig GT

The consolidated total of electricity sold by Cemig GT means the total of: sales to Free Clients both in the state of Minas Gerais and outside it; sales under the Proinfa program to encourage new energy sources; and wholesale sales in the Regulated and Free Markets, and through the CCEE (Electricity Trading Chamber).

This total was 4.0% lower in 2Q12 than in 2Q11, reflecting a lower volume of sales by Cemig through the CCEE in 2Q12.

The counterpart to this was that total revenue from electricity supply in 2Q12 was 15.7% higher year-on-year, at R$ 1,211,270, compared to R$1,046,679 in 2Q11.

This mainly reflects higher prices in the spot market, and also significant growth of 9% in the industrial consumer category and 328% in the commercial category.

Although the volume of electricity sold to other concession holders was 7.6% lower YoY, revenue from energy sold to other concession holders was 6.5% higher, at R$ 398.8 million in 2Q12, compared to R$ 374.4 million in 2Q11.

This table shows supply of electricity by type of consumer:

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|  | MWh (**) |  | R$ |
|  | 2Q12 |  | 2Q11 |  | Change % |  | 2Q12 |  | 2Q11 |  | Change % |
Industrial |  | 5,044,275 |  | 4,943,098 |  | 2.05 |  | 675,107 |  | 616,715 |  | 9.47 |
Commercial |  | 58,394 |  | 22,783 |  | 156.31 |  | 17,218 |  | 4,027 |  | 327.56 |
Uninvoiced supply, net |  | — |  | — |  | — |  | 10,860 |  | 18,392 |  | (40.95 | )
|  | 5,102,669 |  | 4,965,881 |  | 2.75 |  | 703,185 |  | 639,134 |  | 10.02 |
Wholesale supply to other concession holders (*) |  | 3,400,636 |  | 3,678,866 |  | (7.56 | ) | 398,814 |  | 374,449 |  | 6.51 |
Transactions in electricity on the CCEE |  | 945,244 |  | 1,242,870 |  | (23.95 | ) | 102,828 |  | 30,169 |  | 240.84 |
Sales under the Proinfa program |  | 20,954 |  | 13,317 |  | 57.35 |  | 6,443 |  | 2,927 |  | 120.12 |
Total |  | 9,469,503 |  | 9,900,934 |  | (4.36 | ) | 1,211,270 |  | 1,046,679 |  | 15.73 |

( * ) Includes Regulated Market Electricity Sale Contracts (CCEARs) and ‘bilateral contracts’ with other agents.

( ** ) The information in MWh has not been reviewed by the external auditors.

— The electricity market of Cemig D

The concession area of Cemig Distribuição S.A. (Cemig D) covers 567,478 km², approximately 97% of the territory of Minas Gerais State. Cemig D has four electricity distribution concessions in Minas Gerais, under four concession contracts — for the Western, Eastern, Northern and Southern areas of the State. These contracts have an expiry date of February 18, 2016, and a clause providing for their extension by the concession-granting power for a further 20 (twenty) years, upon application by the concession holder.

The total of electricity sold by Cemig D in 2Q12 was 1.8% higher than in 2Q11. The main factor in this comparison is consumption by the residential, commercial and rural consumer categories. Consumption by captive consumers in the industrial category was 11.6% lower year-on-year; but if adjusted for the clients that migrated to the free market in the period, Cemig D’s volume of sales to the Industrial category would have been 3.6% higher year-on-year.

The following are some comments on the figures for the main consumer categories:

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Residential:

Residential consumption represents 35.9% of the total energy sold by Cemig D in 2Q12, and was 5.38% higher than in 2Q11.

Industrial:

Electricity used by captive industrial clients was 17.2% of the volume sold by Cemig D in 2Q12, and totaled 11.6% less is than in 1Q11 — the main factor being the migration of captive clients to the status of free clients over the period: adjusted for this migration to the Free Market, the volume sold to industrial clients would have been 3.6% higher YoY.

Commercial and Services:

The volume of electricity sold to this consumer category accounted for 22.0% of the electricity sold by Cemig D in 2Q12, and was 4.5% higher than in 2Q11.

Rural:

Rural consumption was a significant 15.4% higher year-on-year, with the connection of 101,394 new rural properties added in the 12-month period. These consumers accounted for 11.5% of the total electricity consumption.

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Other consumer categories:

The total of the other types of consumption in 2011 — by public authorities, public illumination, public services, and Cemig’s own consumption — was 2.5% higher than in 2Q11, and was 13.2% of the total volume sold by Cemig D.

|  | MWh (*) |
|  | 2Q12 |  | 2Q11 |  | Change, % |
Residential |  | 2,197,817 |  | 2,085,684 |  | 5.38 |
Industrial |  | 1,049,500 |  | 1,186,984 |  | (11.58 | )
Commercial, services and others |  | 1,347,886 |  | 1,289,899 |  | 4.50 |
Rural |  | 701,811 |  | 608,224 |  | 15.39 |
Public authorities |  | 214,249 |  | 207,368 |  | 3.32 |
Public illumination |  | 306,101 |  | 299,293 |  | 2.27 |
Public service |  | 288,651 |  | 282,748 |  | 2.09 |
Subtotal |  | 6,106,015 |  | 5,960,200 |  | 2.45 |
Own consumption |  | 8,387 |  | 8,856 |  | (5.30 | )
Uninvoiced supply, net |  | — |  | — |  | — |
|  | 6,114,402 |  | 5,969,056 |  | 2.43 |
Transactions in electricity on the CCEE |  | 3,908 |  | 43,953 |  | (91.11 | )
|  | 6,118,310 |  | 6,013,009 |  | 1.75 |

(*) The information in MWh has not been reviewed by the external auditors.

(**) Figures given in MWh are for net purchase/sale.

— Consolidated operational revenue

Revenue from supply of electricity

Revenue from supply of electricity in 2Q12 was R$ 4,101,807, 12.80% more than in 2Q11 (R$ 3,636,250).

The main factors affecting revenue in 2012 were:

· Tariff increase for Cemig D with average effect on consumer tariffs of 3.85%, starting from April 8, 2012.

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· Tariff increase for Cemig D with average effect on consumer tariffs of 7.24%, starting from April 8, 2011.

· Volume of energy invoiced to final consumers 4.91% higher (this excludes Cemig’s own internal consumption).

|  | MWh (*) |  | R$ |
|  | 2Q12 |  | 2Q11 |  | Change, % |  | 2Q12 |  | 2Q11 |  | Change, % |
Residential |  | 2,837,582 |  | 2,618,129 |  | 8.38 |  | 1,532,619 |  | 1,312,405 |  | 16.78 |
Industrial |  | 6,473,564 |  | 6,490,521 |  | (0.26 | ) | 1,126,960 |  | 1,076,295 |  | 4.71 |
Commercial, services and others |  | 1,964,043 |  | 1,731,748 |  | 13.41 |  | 878,330 |  | 735,098 |  | 19.48 |
Rural |  | 705,939 |  | 611,540 |  | 15.44 |  | 193,133 |  | 164,346 |  | 17.52 |
Public authorities |  | 342,467 |  | 306,349 |  | 11.79 |  | 153,977 |  | 134,607 |  | 14.39 |
Public illumination |  | 361,165 |  | 344,169 |  | 4.94 |  | 96,913 |  | 89,132 |  | 8.73 |
Public service |  | 382,739 |  | 353,690 |  | 8.21 |  | 114,368 |  | 103,170 |  | 10.85 |
Subtotal |  | 13,067,499 |  | 12,456,146 |  | 4.91 |  | 4,096,300 |  | 3,615,053 |  | 13.31 |
Own consumption |  | 15,572 |  | 14,431 |  | 7.91 |  | — |  | — |  | — |
Uninvoiced supply, net |  | — |  | — |  | — |  | 5,507 |  | 21,197 |  | (74.02 | )
|  | 13,083,071 |  | 12,470,577 |  | 4.91 |  | 4,101,807 |  | 3,636,250 |  | 12.80 |
Wholesale supply to other concession holders |  | 3,256,062 |  | 3,411,595 |  | (4.56 | ) | 400,535 |  | 394,934 |  | 1.42 |
Transactions in electricity on the CCEE |  | 547,070 |  | 1,040,058 |  | (47.40 | ) | 158,932 |  | 32,599 |  | 387.54 |
Sales under the Proinfa program |  | 20,954 |  | 13,317 |  | 57.35 |  | 6,443 |  | 2,927 |  | 120.12 |
Total |  | 16,907,157 |  | 16,935,547 |  | (0.17 | ) | 4,667,717 |  | 4,066,710 |  | 14.78 |

(*) The information in MWh has not been reviewed by the external auditors.

Revenue from wholesale electricity sales

Although the volume of electricity sold to other concession holders in 2Q12 was 4.56% lower than in 2Q11, revenue from these sales was 1.42% higher, at R$ 400,500 (vs. R$ 394,900 in 2Q11) due to the average sale price being 6.26% higher — at R$ 123.01 (one hundred twenty-three Reais) per MWh, compared to R$ 115.76/MWh in 2Q11.

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Transactions in electricity on the CCEE

Revenue from electricity sales on the CCEE was R$ 158,932 in the first half of 2012, compared to R$ 32,599 in the first half of 2011 — an increase of 387.54%. This reflected the significantly higher spot market price in 1H12 — of R$ 115.15 — compared to R$ 27.77 in 1H11.

Revenue from use of the electricity Distribution Systems (TUSD)

The revenue from the TUSD (Tariff for Use of the Distribution System), received by Cemig D and Light, was 28.22% higher in 2Q12, at R$ 535,295, compared to R$ 417,478 in 2Q11. This revenue comes principally from charges to free consumers on the electricity sold by other agents of the electricity sector.

Revenue from use of the transmission grid

For the older concessions, the Revenue for use of the transmission grid refers to the tariff charged to agents in the electricity sector, including Free Consumers connected to the high voltage network, for use of that part of the National transmission Grid that is owned by the Company, less the amounts received that are used for amortization of the financial asset.

For the new concessions, it includes the portion received from agents of the electricity sector relating to operation and maintenance of the transmission lines and also the adjustment to present value of the transmission financial asset constituted, primarily, during the period of construction of the transmission facilities. The rates used for updating of the asset correspond to the remuneration on capital applied to the undertakings, and these vary in accordance with the model of undertaking and the investing company’s cost of capital.

The revenue for use of the network was not significantly different year-on-year — at R$ 364,115 in 2Q12, and R$ 340,978 in 2Q11.

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—Taxes and charges applied to revenue

The charges and taxes applied to revenue in 2Q12 totaled R$ 1,891,716, an increase of 11.30% compared to 2Q11 (R$ 1,699,652). The main variations in these deductions from revenue between the two years are as follows:

Global Reversion Reserve — RGR

This deduction from revenue was 48.07% higher in 2Q12 than 2Q11. This is a non-controllable cost: the expense recognized in the income statement is the amount passed on to the tariff.

The Fuel Consumption Account — CCC

The deduction from revenue for the CCC was R$ 145,207 in 2Q12, 18.53% less than in 2Q11 (R$ 178,224). This charge is for the costs of operation of the thermal plants in the national grid and in the isolated systems. It is prorated between electricity concession holders, on a basis set by a Resolution issued by the regulator, Aneel.

This is a non-controllable cost: in the distribution activity, the difference between the amounts used as a reference for calculation of tariffs and the cost actually incurred is compensated for in the next tariff adjustment. For the portion relating to transmission services, the Company charges the CCC amount to Free Consumers on their invoices and passes it on to Eletrobrás.

CDE — Energy Development Account

The payments of the CDE are set by a resolution issued by the regulator, Aneel, and were 13.00% higher in 2Q12 than in 2Q11. The deduction from revenue relating to the CDE was R$ 138,335 in 1H12, compared to R$ 122,420 in 1H11.

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The other deductions from revenue are taxes, calculated as a percentage of amounts invoiced. Hence their variations are substantially proportional to the changes in revenue.

|  | 2Q12 |  | 2Q11 |  | Change, % |
Taxes on revenue: |  |  |  |  |  |  |
ICMS tax |  | 979,892 |  | 859,139 |  | 14.06 |
Cofins tax |  | 406,407 |  | 366,414 |  | 10.91 |
PIS and Pasep taxes |  | 88,282 |  | 79,560 |  | 10.96 |
ISS value added tax on services, and other taxes |  | 1,572 |  | 1,380 |  | 13.91 |
|  | 1,476,153 |  | 1,306,493 |  | 12.99 |
Charges to the consumer |  |  |  |  |  |  |
Global Reversion Reserve – RGR |  | 71,948 |  | 48,589 |  | 48.07 |
Energy Efficiency Program – P.E.E. |  | 12,447 |  | 10,208 |  | 21.93 |
CDE – Energy Development Account |  | 138,335 |  | 122,420 |  | 13.00 |
Fuel Consumption Account – CCC |  | 145,207 |  | 178,244 |  | (18.53 | )
Research and Development – P&D |  | 11,540 |  | 9,498 |  | 21.50 |
National Scientific and Technological Development Fund (FNDCT) |  | 9,938 |  | 8,356 |  | 18.93 |
Energy system expansion research – EPE (Mining and Energy Ministry) |  | 3,395 |  | 4,178 |  | (18.74 | )
Emergency Capacity Charge |  | 12,690 |  | 4,377 |  | 189.92 |
0.30% additional payment (Law 12111/09) |  | 10,063 |  | 7,289 |  | 38.06 |
|  | 415,563 |  | 393,159 |  | 5.70 |
|  | 1,891,716 |  | 1,699,652 |  | 11.30 |

—Operational costs and expenses

(Excluding financial revenues/expenses)

Operational costs and expenses (excluding Financial revenue (expenses)) totaled R$ 3,225,984 in 2Q12, 15.70% more than in 2Q11 (R$ 2,788,331). This mainly reflects higher costs on employee profit shares, electricity bought for resale, operational reversals, charges for use of the national transmission grid, and gas bought for resale.

The following paragraphs outline the main variations in expenses:

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Employees’ and managers’ profit shares

The expense on employees’ and managers’ profit shares in 2Q12 was R$ 62,467, compared to R$ 1,068 in 2Q11, an increase of 5,748.97%. This is a reflection of the fact that in 2011 the provisioning of profit shares was posted in March, and in 2012 it was posted in April.

Electricity bought for resale

The expense on electricity bought for resale in 2Q12 was R$ 1,384,490, which was 36.22% more than the expense of R$ 1,016,344 in 2Q11. This primarily reflects the following factors:

· Cemig D’s financial exposure to the spot market was 160.18% higher, at R$ 212,547, in 2Q12, than in 2Q11 (R$ 81,693), reflecting higher spot (PLD) prices in all the sub-markets, starting in March 2012, and also higher System Service Charges (ESS), due to dispatching of thermal plants.

· The volume of electricity acquired in the regulated market through Cemig D’s auction was 35.11% higher — as part of a strategy to minimize risks of financial exposure to the spot market.

· Cemig D’s expense on electricity from Itaipu, which is indexed to the dollar, was 25.85% higher in Reais, at R$ 226,332 in 2Q12, vs. R$ 179,845 in 2Q11 — mainly reflecting the weakening of the Real against the dollar in the first half of 2012, compared to strengthening of the Real against the dollar in the first half of 2011. In 1H12 the US dollar appreciated 7.76% against the Real, while in 1H11 it depreciated by 6.31% against the Real.

Charges for use of the transmission grid

Expenses on charges for the use of the transmission grid were R$ 243,731 in 2Q11, 26.52% more than in 2Q11 (R$ 192,636). This expense is for the charges payable by electricity distribution and generation agents for use

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of the facilities that are components of the national grid. The amounts to be paid are set by an Aneel Resolution.

This is a non-controllable cost: in the distribution activity, the difference between the amounts used as a reference for calculation of tariffs and the cost actually incurred is compensated for in the next tariff adjustment.

Gas purchased for resale

The cost of gas purchased for resale was R$ 117,434 in 2Q12, 45.94% more than in 2Q11 (R$ 80,465). This reflects the increase in the volume of gas purchased, to meet the requirements of higher sales of gas by Gasmig in 2012, due to increased industrial consumption following the expansion of Gasmig’s client base in the ‘Steel Valley’ (Vale do Aço) and South of Minas (Sul de Minas) regions.

—Financial revenues (expenses)

Net financial expenses in 2Q12 totaled R$ 302,632, 29.20% more than in 2Q11 (R$ 234,232). The main factors in the difference between financial revenues/expenses in 2Q12 and 2Q11 are:

· Revenue from cash investments was 35.70% lower — on less cash invested in 2012.

· Lower expense on costs of loans and financings: R$ 331,094 in 2Q12, compared to R$ 365,502 in 2Q11. This lower figure basically reflects the lower variation represented by the CDI rate over 2Q12 than over 2Q11. In 2Q12 this variation was 2.09%, compared to 2.80% in 2Q11.

· Expense of foreign exchange variations: The amount of the exchange rate variation effect, totaling R$ 43,298 in 2Q12, mainly arises from exchange

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rate variations on loan contracts linked to the dollar, owed by the subsidiary Taesa, arising from the acquisition of Abengoa.

|  | 2Q12 |  | 2Q11 |  | Change, % |
Financial revenues |  |  |  |  |  |  |
Interest income from cash investments |  | 72,784 |  | 113,190 |  | (35.70 | )
Late charges on overdue electricity bills |  | 45,816 |  | 44,290 |  | 3.45 |
Monetary variations |  | 16,025 |  | 25,020 |  | (35.95 | )
Monetary Updating on Court escrow deposits (Note 11) |  | 1,205 |  | — |  | — |
Interest and monetary updating on accounts receivable from the Minas Gerais state government |  | 34,732 |  | 57,054 |  | (39.12 | )
Foreign exchange variations |  | 4,137 |  | 20,613 |  | (79.93 | )
Pasep and Cofins taxes on financial revenues |  | (1,096 | ) | (787 | ) | 39.26 |
Gains on financial instruments |  | 19,726 |  | — |  | — |
Adjustment to present value |  | 6,122 |  | — |  | — |
Other |  | 23,713 |  | 3,201 |  | 640.80 |
|  | 223,164 |  | 262,581 |  | (15.01 | )
FINANCIAL EXPENSES |  |  |  |  |  |  |
Costs of loans and financings |  | (331,094 | ) | (365,502 | ) | (9.41 | )
Foreign exchange variations |  | (43,298 | ) | (2,260 | ) | 1.819.03 |
Monetary updating – loans and financings |  | (46,683 | ) | (45,202 | ) | 3.28 |
Monetary updating - paid concessions |  | (11,689 | ) | (3,039 | ) | 284.63 |
Monetary Updating – R$&D and P.E.E. |  | (6,185 | ) | (8,782 | ) | (29.57 | )
Monetary updating – Other items |  | (11,977 | ) | (7,886 | ) | 51.88 |
Losses on financial instruments |  | — |  | (3,889 | ) | — |
Adjustment to present value |  | — |  | (665 | ) | — |
Charges and monetary updating on Post-retirement obligations |  | (28,750 | ) | (30,365 | ) | (5.32 | )
Other |  | (46,050 | ) | (29,223 | ) | 57.57 |
|  | (525,796 | ) | (496,813 | ) | 5.83 |
NET FINANCIAL REVENUE (EXPENSES) |  | (302,632 | ) | (234,232 | ) | 29.20 |

—Income tax and Social Contribution tax

Cemig’s expenses in 2Q12 on income tax and the Social Contribution tax totaled R$ 280,436, on profit of R$ 884,668 before tax effects, a percentage of 31.70%. In 2Q11 the Company’s expenses on income tax and the Social Contribution tax were R$ 259,149, on pre-tax profit of R$ 782,206, a percentage of 33.13%.

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—EBITDA

(Method of calculation not reviewed by external auditors)

Cemig’s Ebitda in 2Q12 was 14.39% higher in 2Q12 than 2Q11:

EBITDA - R$ ‘000 |  | 2Q12 |  | 2Q11 |  | Change, % |
Profit (loss) for the period |  | 604,232 |  | 523,057 |  | 15.52 |
+ Income tax and Social Contribution tax |  | 280,436 |  | 259,149 |  | 8.21 |
+ Net financial revenue (expenses) |  | 302,632 |  | 234,232 |  | 29.20 |
+ Depreciation and amortization |  | 245,164 |  | 236,361 |  | 3.72 |
+ Equity gain (loss) on subsidiaries |  | 656 |  | — |  | — |
EBITDA |  | 1,433,120 |  | 1,252,799 |  | 14.39 |

The higher Ebitda in 2Q12 than in 2Q11 mainly reflects net revenue 16.01% higher, partially offset by operational expenses (excluding effects of depreciation and amortization) 16.80% higher. Ebitda margin was practically unchanged between the quarters: 32.93% in 2Q11, and 32.47% in 2Q12.

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—Light — Highlights of 2Q 2012

For more information please see this link:

http://www.mzweb.com.br/light/web/arquivos/Release_2Q12.pdf

· Total electricity consumption in 2Q12, at 5,754 GWh, was 1.5% higher than in 2Q11, led by consumption 8.4% higher year-on-year in the commercial user category.

· Consolidated net revenue in the quarter, excluding construction revenue, was R$ 1.636 billion, up 12.1% from 2Q11. Revenue was higher year-on-year in all the segments of Light’s business, with a highlight for generation, in which revenue was up 48.38% YoY.

· Consolidated Ebitda in the quarter was R$ 255.8 million, 6.2% more than in 2Q11, reflecting the strong performance of the generation sector. Ebitda margin in the quarter was 15.6%, which compares with 16.5% in 2Q11.

· Net income in the quarter was R$ 39.8 million, 12.3% lower than the 2Q11 net income of R$ 45.3 million, mainly due to higher financial expenses.

· Realized revenues from electricity invoices in 2011 were 98.2% of the total invoiced, 0.7 of a percentage point more than the ratio achieved in 2Q11.

· Non-technical losses in the quarter were 42.3% of the low-voltage invoiced market (by the Aneel criterion), 1.0 percentage point higher than in 1Q12, mainly due to a change in the criterion used to account for clients with long-term delinquency.

· At the end of the quarter Light’s net debt was R$ 3.517 billion, 2.3% more than at the end of March 2012. The Net Debt / Ebitda leverage ratio was 2.8x.

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—Taesa — Highlights of 2Q 2012

http://www.mzweb.com.br/taesa2011/web/arquivos/Release%202Q12.pdf

· Non-adjusted Ebitda was R$ 244.9 million, 40.2% more than in 1Q11, with Ebitda margin of 86.9%.

· Taesa paid dividends of R$ 214 million, or R$ 4.88 per Unit, on the profit for 2011.

· An agreement, for a total amount of R$ 1.732 billion, was signed for transfer to Taesa of the minority stockholdings held by Cemig in the TBE Group.

· Taesa settled the transaction with Abengoa to acquire the remaining 50% of Unisa, paying approximately R$ 904 million for that interest, financed by issue of short-term promissory notes totaling R$ 905 million, at a cost of 104% of the CDI rate.

· Taesa raised 1.755 billion in its public offering, with its Unit priced at R$ 65.00. The stockholder’s structure:

· Net income in 2Q12 was R$ 73.9 million, 1.6% higher than in 2Q11.

· Taesa’s results for 1Q12 include the 1Q12 results of the assets of Abengoa that had been acquired (100% of NTE, and 50% of Unisa — ATE, ATE II,

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ATE II and STE). The assets related to Abengoa were acquired on November 30, 2011 — hence they have no effect on the results for 2Q11.

· The market capitalization of Taesa increased by 90.86% in the year, to R$ 7.9 billion at the end of July.

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—PROFIT AND LOSS ACCOUNTS, BY ACTIVITY

PROFIT AND LOSS ACCOUNT SEPARATED BY COMPANY. JUNE 30, 2012 |
|  | ELECTRICITY |  |  |  |  |  |  |  |  |  |  |
ITEM |  | GENERATION |  | TRANSMISSION |  | DISTRIBUTION |  | GAS |  | TELECOMS |  | OTHERS |  | ELIMINATIONS |  | TOTAL |
ASSETS |  | 12,444,731 |  | 9,567,209 |  | 13,672,042 |  | 837,105 |  | 424,710 |  | 1,703,475 |  | (1,092,349 | ) | 37,556,923 |
INVESTMENTS |  | 713,029 |  | 36,220 |  | 234,585 |  | 7,017 |  | 10,166 |  | (4,081 | ) | — |  | 996,936 |
NET OPERATIONAL REVENUE |  | 2,217,892 |  | 667,442 |  | 5,498,501 |  | 269,288 |  | 66,644 |  | 109,096 |  | (266,528 | ) | 8,562,335 |
COST OF ELECTRICITY SERVICE |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
COST OF ELECTRICITY AND GAS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Electricity bought for resale |  | (254,878 | ) | — |  | (2,323,861 | ) | — |  | — |  | (60,996 | ) | 108,156 |  | (2,531,579 | )
Charges for the use of the transmission grid |  | (139,931 | ) | (105 | ) | (473,667 | ) | — |  | — |  | — |  | 128,514 |  | (485,189 | )
Gas purchased for resale |  | — |  | — |  | — |  | (217,878 | ) | — |  | — |  | — |  | (217,878 | )
Total operational costs, electricity and gas |  | (394,809 | ) | (105 | ) | (2,797,528 | ) | (217,878 | ) | — |  | (60,996 | ) | 236,670 |  | (3,234,646 | )
OPERATIONAL COSTS AND EXPENSES |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Personnel and managers |  | (99,441 | ) | (71,712 | ) | (424,975 | ) | (8,650 | ) | (16,095 | ) | (31,253 | ) | — |  | (652,126 | )
Employees’ and managers’ profit shares |  | (18,861 | ) | (10,817 | ) | (78,828 | ) | — |  | (20 | ) | (9,829 | ) | — |  | (118,355 | )
Post-retirement obligations |  | (10,077 | ) | (4,919 | ) | (49,823 | ) | — |  | — |  | (5,055 | ) | — |  | (69,874 | )
Materials |  | (5,011 | ) | (3,386 | ) | (24,181 | ) | (549 | ) | (102 | ) | (709 | ) | — |  | (33,938 | )
Outsourced services |  | (67,669 | ) | (45,949 | ) | (378,511 | ) | (3,069 | ) | (11,110 | ) | (18,355 | ) | 14,055 |  | (510,608 | )
Depreciation and amortization |  | (236,620 | ) | (422 | ) | (218,425 | ) | (8,644 | ) | (18,098 | ) | (506 | ) | — |  | (482,715 | )
Operational provisions |  | (6,322 | ) | (570 | ) | (108,328 | ) | 1,859 |  | (10 | ) | 16,838 |  | — |  | (96,533 | )
Royalties for use of water resources |  | (95,535 | ) | — |  | — |  | — |  | — |  | — |  | — |  | (95,535 | )
Construction costs |  | — |  | (58,101 | ) | (639,742 | ) | — |  | — |  | — |  | — |  | (697,843 | )
Others |  | (37,568 | ) | (18,668 | ) | (102,036 | ) | (1,524 | ) | (9,185 | ) | (25,695 | ) | 15,803 |  | (178,873 | )
Total cost of operation |  | (577,104 | ) | (214,544 | ) | (2,024,849 | ) | (20,577 | ) | (54,620 | ) | (74,564 | ) | 29,858 |  | (2,936,400 | )
TOTAL COST |  | (971,913 | ) | (214,649 | ) | (4,822,377 | ) | (238,455 | ) | (54,620 | ) | (135,560 | ) | 266,528 |  | (6,171,046 | )
Operational profit before Equity gains (losses) and Financial revenue (expenses) |  | 1,245,979 |  | 452,793 |  | 676,124 |  | 30,833 |  | 12,024 |  | (26,464 | ) | — |  | 2,391,289 |
Equity gain (loss) on subsidiaries |  | (1,458 | ) | — |  | — |  | — |  | — |  | — |  | — |  | (1,458 | )
Financial revenue |  | 63,016 |  | 72,446 |  | 213,794 |  | 13,494 |  | 5,264 |  | 76,756 |  | — |  | 444,770 |
Financial expenses |  | (211,470 | ) | (303,388 | ) | (421,583 | ) | (6,459 | ) | (6,029 | ) | (60,553 | ) | — |  | (1,009,482 | )
PROFIT BEFORE TAXES |  | 1,096,067 |  | 221,851 |  | 468,335 |  | 37,868 |  | 11,259 |  | (10,261 | ) | — |  | 1,825,119 |
Income tax and Social Contribution tax |  | (384,619 | ) | (62,541 | ) | (291,118 | ) | (11,305 | ) | (5,009 | ) | (4,683 | ) | — |  | (759,275 | )
Deferred income tax and Social Contribution tax |  | 30,094 |  | 10,905 |  | 132,443 |  | — |  | (1,901 | ) | (1,765 | ) | — |  | 169,776 |
NET INCOME FOR THE YEAR |  | 741,542 |  | 170,215 |  | 309,660 |  | 26,563 |  | 4,349 |  | (16,709 | ) | — |  | 1,235,620 |

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— FINANCIAL STATEMENTS SEPARATED BY COMPANY

FINANCIAL STATEMENTS SEPARATED BY COMPANY: JUNE 30, 2012 |
ITEM |  | HOLDING |  | CEMIG - GT |  | CEMIG-D |  | LIGHT |  | ETEP, ENTE, ERTE, EATE, ECTE |  | GASMIG |  | CEMIG TELECOM |  | SÁ CARVALHO |  | ROSAL |  | OTHERS |  | ELIMINATIONS / TRANSFERS |  | TOTAL |
ASSETS |  | 15,047,799 |  | 15,777,369 |  | 10,950,232 |  | 2,846,858 |  | 1,360,491 |  | 837,105 |  | 424,710 |  | 172,845 |  | 149,142 |  | 1,413,539 |  | (11,423,167 | ) | 37,556,923 |
Cash and cash equivalents |  | 142,982 |  | 1,691,954 |  | 306,574 |  | 136,302 |  | 30,944 |  | 22,635 |  | 93,946 |  | 4,711 |  | 5,003 |  | 141,209 |  | (240,990 | ) | 2,335,270 |
Accounts receivable |  | — |  | 671,255 |  | 1,964,733 |  | 402,298 |  | 35,991 |  | 156,927 |  | — |  | 6,579 |  | 3,380 |  | 121,792 |  | (165,373 | ) | 3,197,582 |
Securities — cash investments |  | 149,485 |  | 517,624 |  | 35,239 |  | 4,034 |  | — |  | 12,851 |  | — |  | 5,648 |  | 6,371 |  | 48,710 |  | 240,533 |  | 1,020,495 |
Taxes |  | 528,093 |  | 315,294 |  | 1,034,458 |  | 296,762 |  | 12,508 |  | 70,009 |  | 35,150 |  | — |  | 58 |  | 18,645 |  | (114 | ) | 2,310,863 |
Other assets |  | 2,041,307 |  | 351,038 |  | 1,435,078 |  | 170,546 |  | 59,260 |  | 32,600 |  | 34,836 |  | 4,258 |  | 347 |  | 91,999 |  | 74,525 |  | 4,295,794 |
Investments / Fixed / Intangible / Financial Assets of Concession |  | 12,185,932 |  | 12,230,204 |  | 6,174,150 |  | 1,836,916 |  | 1,221,788 |  | 542,083 |  | 260,778 |  | 151,649 |  | 133,983 |  | 991,184 |  | (11,331,748 | ) | 24,396,919 |
LIABILITIES |  | 15,047,799 |  | 15,777,369 |  | 10,950,232 |  | 2,846,858 |  | 1,360,491 |  | 837,105 |  | 424,710 |  | 172,845 |  | 149,142 |  | 1,413,539 |  | (11,423,167 | ) | 37,556,923 |
Suppliers and supplies |  | 7,317 |  | 170,492 |  | 865,245 |  | 190,545 |  | 13,148 |  | 40,474 |  | 6,117 |  | 495 |  | 3,589 |  | 55,313 |  | (57,535 | ) | 1,295,200 |
Loans, financings and debentures |  | 1,063,100 |  | 8,556,006 |  | 3,660,963 |  | 1,056,878 |  | 376,187 |  | 117,594 |  | 105,898 |  | — |  | — |  | 342,953 |  | 762,934 |  | 16,042,513 |
Interest on Equity, and dividends |  | 681,439 |  | 166,715 |  | 352,781 |  | — |  | 20,753 |  | 31,019 |  | — |  | 12,290 |  | 10,053 |  | 71,813 |  | (671,966 | ) | 674,897 |
Post-retirement obligations |  | 102,406 |  | 441,606 |  | 1,402,837 |  | 284,717 |  | — |  | — |  | — |  | — |  | — |  | 70,031 |  | — |  | 2,301,597 |
Taxes |  | 21,788 |  | 635,867 |  | 1,043,589 |  | 152,841 |  | 112,201 |  | 30,266 |  | 14,834 |  | 40,189 |  | 1,200 |  | 161 |  | — |  | 2,052,936 |
Other liabilities |  | 273,865 |  | 606,096 |  | 929,633 |  | 275,072 |  | 38,851 |  | 179,020 |  | 10,415 |  | 2,755 |  | 2,142 |  | 100,810 |  | (126,763 | ) | 2,291,896 |
Stockholders’ equity |  | 12,897,884 |  | 5,200,587 |  | 2,695,184 |  | 886,805 |  | 799,351 |  | 438,732 |  | 287,446 |  | 117,116 |  | 132,158 |  | 772,458 |  | (11,329,837 | ) | 12,897,884 |
PROFIT AND LOSS ACCOUNT |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net operational revenue |  | 161 |  | 2,450,642 |  | 4,471,887 |  | 964,917 |  | 170,761 |  | 269,288 |  | 66,644 |  | 29,071 |  | 19,645 |  | 385,747 |  | (266,428 | ) | 8,562,335 |
Operational costs and expenses |  | (42,024 | ) | (1,045,375 | ) | (3,898,100 | ) | (830,775 | ) | (25,537 | ) | (238,455 | ) | (54,620 | ) | (6,739 | ) | (9,228 | ) | (286,621 | ) | 266,428 |  | (6,171,046 | )
Electricity bought for resale |  | — |  | (242,505 | ) | (1,780,889 | ) | (490,559 | ) | — |  | — |  | — |  | (2 | ) | (1,924 | ) | (123,856 | ) | 108,156 |  | (2,531,579 | )
Charges for the use of the transmission grid |  | — |  | (130,957 | ) | (391,911 | ) | (65,616 | ) | — |  | — |  | — |  | — |  | (1,432 | ) | (17,377 | ) | 122,104 |  | (485,189 | )
Gas purchased for resale |  | — |  | — |  | — |  | — |  | — |  | (217,878 | ) | — |  | — |  | — |  | — |  | — |  | (217,878 | )
Construction cost |  | — |  | (45,677 | ) | (542,426 | ) | (78,105 | ) | (11,365 | ) | — |  | — |  | — |  | — |  | (20,270 | ) | — |  | (697,843 | )
Personnel |  | (21,977 | ) | (158,363 | ) | (386,312 | ) | (37,266 | ) | (5,193 | ) | (8,650 | ) | (16,095 | ) | (731 | ) | (854 | ) | (16,685 | ) | — |  | (652,126 | )
Employee profit shares |  | (8,924 | ) | (29,432 | ) | (78,828 | ) | — |  | — |  | — |  | (20 | ) | (196 | ) | (50 | ) | (905 | ) | — |  | (118,355 | )
Post-retirement obligations |  | (5,055 | ) | (14,996 | ) | (46,944 | ) | (2,311 | ) | — |  | — |  | — |  | — |  | — |  | (568 | ) | — |  | (69,874 | )
Materials |  | (54 | ) | (8,210 | ) | (21,895 | ) | (2,314 | ) | 385 |  | (549 | ) | (102 | ) | (92 | ) | (163 | ) | (944 | ) | — |  | (33,938 | )
Outsourced services |  | (5,700 | ) | (90,067 | ) | (325,044 | ) | (52,161 | ) | (6,764 | ) | (3,069 | ) | (11,110 | ) | (1,335 | ) | (1,651 | ) | (27,762 | ) | 14,055 |  | (510,608 | )
Royalties for use of water resources |  | — |  | (91,858 | ) | — |  | — |  | — |  | — |  | — |  | (1,288 | ) | (575 | ) | (1,814 | ) | — |  | (95,535 | )
Depreciation and amortization |  | (185 | ) | (180,686 | ) | (176,471 | ) | (45,006 | ) | (687 | ) | (8,644 | ) | (18,098 | ) | (2,751 | ) | (2,102 | ) | (48,085 | ) | — |  | (482,715 | )
Operational provisions |  | 16,656 |  | (6,664 | ) | (53,121 | ) | (44,577 | ) | — |  | 1,859 |  | (10 | ) | 32 |  | (1 | ) | (10,707 | ) | — |  | (96,533 | )
Other expenses, net |  | (16,785 | ) | (45,960 | ) | (94,259 | ) | (12,860 | ) | (1,913 | ) | (1,524 | ) | (9,185 | ) | (376 | ) | (476 | ) | (17,648 | ) | 22,113 |  | (178,873 | )
Operational profit before Equity gains (losses) and Financial revenue (expenses) |  | (41,863 | ) | 1,405,267 |  | 573,787 |  | 134,142 |  | 145,224 |  | 30,833 |  | 12,024 |  | 22,332 |  | 10,417 |  | 99,126 |  | — |  | 2,391,289 |
Equity gain (loss) on subsidiaries |  | 1,263,711 |  | (1,458 | ) | — |  | — |  | (177 | ) | (2,816 | ) | — |  | — |  | — |  | (2,038 | ) | (1,258,680 | ) | (1,458 | )
Financial revenue |  | 72,845 |  | 118,769 |  | 149,113 |  | 26,514 |  | 2,140 |  | 13,494 |  | 5,264 |  | 618 |  | 676 |  | 55,337 |  | — |  | 444,770 |
Financial expenses |  | (84,925 | ) | (452,115 | ) | (293,220 | ) | (90,784 | ) | (33,074 | ) | (6,459 | ) | (6,029 | ) | (346 | ) | (57 | ) | (42,473 | ) | — |  | (1,009,482 | )
Profit before income tax and Social Contribution tax |  | 1,209,768 |  | 1,070,463 |  | 429,680 |  | 69,872 |  | 114,113 |  | 35,052 |  | 11,259 |  | 22,604 |  | 11,036 |  | 109,952 |  | (1,258,680 | ) | 1,825,119 |
Income tax and Social Contribution tax |  | — |  | (400,664 | ) | (265,658 | ) | (24,198 | ) | (18,360 | ) | (11,305 | ) | (5,009 | ) | (8,262 | ) | (875 | ) | (24,944 | ) | — |  | (759,275 | )
Deferred income tax and Social Contribution tax |  | (106 | ) | 50,554 |  | 118,264 |  | 1,196 |  | 1,963 |  | — |  | (1,901 | ) | 589 |  | 5 |  | (788 | ) | — |  | 169,776 |
Profit (loss) for the period |  | 1.209.662 |  | 720.353 |  | 282.286 |  | 46.870 |  | 97.716 |  | 23.747 |  | 4.349 |  | 14.931 |  | 10.166 |  | 84.220 |  | (1.258.680 | ) | 1.235.620 |

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— Permitted Annual Revenue — RAP

The Permitted Annual Revenue (Receita Anual Permitida, or RAP) of the Cemig group in 2011 was 13.0% of that of the whole Brazilian transmission market, totaling R$ 1.7 billion, maintaining Cemig’s position as Brazil’s third largest transmission company, with a network of more than 10,000km of transmission lines.

This table gives the RAP of the Cemig group by company/project, as stated in Aneel Homologating Resolution 1171 of June 28, 2011, available at this link on Aneel’s website:

REH - RESOLUÇÃO HOMOLOGATÓRIA Nº 1171 de 28/06/2011 publicado em 01/07/2011 - ANEEL ( VIGENTE )

RAP (Permitted Annual Revenue) |  | Cemig, consolidated |
Taesa |  |  |
ETEO |  | 71.063.230 |
ETAU |  | 9.214.374 |
NOVATRANS |  | 210.027.130 |
TSN |  | 196.276.448 |
GTESA |  | 3.594.086 |
PATESA |  | 8.631.879 |
Munirah |  | 14.739.400 |
Brasnorte |  | 4.590.245 |
Abengoa |  |  |
NTE |  | 61.862.213 |
STE |  | 16.504.969 |
ATEI |  | 30.104.523 |
ATEII |  | 45.824.809 |
ATEIII |  | 21.027.381 |
Cemig GT |  | 461.848.110 |
Cemig Itajuba |  | 29.233.157 |
Centroeste |  | 6.325.507 |
Transirapé |  | 3.858.104 |
Transleste |  | 7.271.715 |
Transudeste |  | 4.326.795 |
TBE |  |  |
EATE |  | 153.278.088 |
STC |  | 141.421.640 |
Lumitrans |  | 7.588.018 |
ENTE |  | 80.221.685 |
ERTE |  | 14.176.673 |
ETEP |  | 34.920.526 |
ECTE |  | 12.928.587 |
EBTE (participação Cemig Gt e EATE) |  | 25.778.009 |
ESDE |  | 5.296.820 |
Light |  | 2.076.655 |
Transchile |  | 5.733.000 |
RAP TOTAL CEMIG |  | 1.689.743.777 |

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— Attachments

Cemig D: Tables

CEMIG D Market |
|  | (GWh) |  | GW |
Quarter |  | Captive Consumers |  | TUSD ENERGY(1) |  | T.E.D(2) |  | TUSD PICK(3) |
2Q10 |  | 5.710 |  | 4.914 |  | 10.624 |  | 24 |
3Q10 |  | 5.841 |  | 5.047 |  | 10.888 |  | 25 |
4Q10 |  | 5.938 |  | 4.927 |  | 10.865 |  | 25 |
1Q11 |  | 6.034 |  | 4.797 |  | 10.831 |  | 25 |
2Q10 |  | 5.969 |  | 5.127 |  | 11.096 |  | 26 |
3Q11 |  | 6.166 |  | 5.274 |  | 11.441 |  | 24 |
4Q11 |  | 6.093 |  | 5.149 |  | 11.242 |  | 26 |
1°Q12 |  | 5.970 |  | 4.902 |  | 10.871 |  | 26 |
2°Q12 |  | 6.114 |  | 5.020 |  | 11.134 |  | 27 |

(1) Refers to the quantity of electricity for calculation of the regulatory charges charged to free consumer clients (“Portion A”)

(2) Total electricity distributed

(3) Sum of the demand on which the TUSD is invoiced, according to demand contracted (“Portion B”).

Operating Revenues |  | 2Q12 |  | 2Q11 |  | Change % |  | 1S12 |  | 1S11 |  | Change % |
Sales to end consumers |  | 2.680 |  | 2.424 |  | 11 |  | 5.260 |  | 4.728 |  | 11 |
TUSD |  | 466 |  | 446 |  | 4 |  | 925 |  | 893 |  | 4 |
Construction revenue |  | 341 |  | 353 |  | (3 | ) | 542 |  | 572 |  | (5 | )
Others |  | 71 |  | 46 |  | 54 |  | 153 |  | 91 |  | 68 |
Subtotal |  | 3.558 |  | 3.269 |  | 9 |  | 6.880 |  | 6.284 |  | 9 |
Deductions |  | (1.202 | ) | (1.131 | ) | 6 |  | (2.409 | ) | (2.202 | ) | 9 |
Net Revenues |  | 2.356 |  | 2.138 |  | 10 |  | 4.471 |  | 4.082 |  | 10 |

Operating Expenses |  | 2Q12 |  | 2Q11 |  | Change % |  | 1S12 |  | 1S11 |  | Change % |
Personnel/Administrators/Councillors |  | 180 |  | 180 |  | 0 |  | 386 |  | 369 |  | 5 |
Employee Participation |  | 42 |  | 3 |  | 1.300 |  | 79 |  | 20 |  | 295 |
Forluz — Post-Retirement Employee Benefits |  | 24 |  | 22 |  | 8 |  | 47 |  | 44 |  | 7 |
Materials |  | 12 |  | 21 |  | (42 | ) | 22 |  | 33 |  | (33 | )
Contracted Services |  | 162 |  | 171 |  | (5 | ) | 325 |  | 316 |  | 3 |
Purchased Energy |  | 992 |  | 707 |  | 40 |  | 1.781 |  | 1.464 |  | 22 |
Depreciation and Amortization |  | 90 |  | 96 |  | (6 | ) | 176 |  | 190 |  | (7 | )
Operating Provisions |  | (5 | ) | 44 |  | (111 | ) | 53 |  | 63 |  | (16 | )
Charges for Use of Basic Transmission Network |  | 192 |  | 164 |  | 17 |  | 391 |  | 319 |  | 23 |
Cost from Construction |  | 341 |  | 353 |  | (3 | ) | 542 |  | 572 |  | (5 | )
Other Expenses |  | 44 |  | 75 |  | (41 | ) | 95 |  | 95 |  | — |
Total |  | 2.074 |  | 1.834 |  | 13 |  | 3.897 |  | 3.485 |  | 12 |

Statement of Results |  | 2Q12 |  | 2Q11 |  | Change % |  | 1S12 |  | 1S11 |  | Change % |
Net Revenue |  | 2.356 |  | 2.138 |  | 10 |  | 4.471 |  | 4.082 |  | 10 |
Operating Expenses |  | 2.074 |  | 1.834 |  | 13 |  | 3.897 |  | 3.485 |  | 12 |
EBIT |  | 282 |  | 304 |  | (7 | ) | 574 |  | 597 |  | (4 | )
EBITDA |  | 372 |  | 399 |  | (7 | ) | 750 |  | 787 |  | (5 | )
Financial Result |  | (86 | ) | (48 | ) | 79 |  | (144 | ) | (122 | ) | 18 |
Provision for Income Taxes, Social Cont & Deferred Income Tax |  | (67 | ) | (86 | ) | (22 | ) | (148 | ) | (162 | ) | (9 | )
Net Income |  | 129 |  | 170 |  | (24 | ) | 282 |  | 313 |  | (10 | )

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Cemig GT — Tables

Operating Revenues |  | 2Q12 |  | 2Q11 |  | Change % |  | 1S12 |  | 1S11 |  | Change % |
Sales to end consumers |  | 703 |  | 639 |  | 10 |  | 1.353 |  | 1.232 |  | 10 |
Supply |  | 502 |  | 404 |  | 24 |  | 1.004 |  | 798 |  | 26 |
Revenues from Trans. Network + Transactions in the CCEE |  | 333 |  | 253 |  | 32 |  | 665 |  | 532 |  | 25 |
Construction revenue |  | 21 |  | 20 |  | 5 |  | 46 |  | 28 |  | 64 |
Others |  | 11 |  | 9 |  | 22 |  |  |  | 12 |  | 125 |
Subtotal |  | 1.570 |  | 1.325 |  | 18 |  | 3.095 |  | 2.602 |  | 19 |
Deductions |  | (324 | ) | (278 | ) | 17 |  | (644 | ) | (548 | ) | 18 |
Net Revenues |  | 1.246 |  | 1.047 |  | 19 |  | 2.451 |  | 2.054 |  | 19 |

Operating Expenses |  | 2Q12 |  | 2Q11 |  | Change % |  | 1S12 |  | 1S11 |  | Change % |
Personnel/Administrators/Councillors |  | 77 |  | 70 |  | 10 |  | 158 |  | 145 |  | 9 |
Employee Participation |  | 15 |  | — |  | — |  | 29 |  | 5 |  | 480 |
Depreciation and Amortization |  | 92 |  | 89 |  | 3 |  | 181 |  | 184 |  | (2 | )
Charges for Use of Basic Transmission Network |  | 67 |  | 58 |  | 16 |  | 131 |  | 115 |  | 14 |
Contracted Services |  | 52 |  | 36 |  | 44 |  | 90 |  | 66 |  | 36 |
Forluz — Post-Retirement Employee Benefits |  | 8 |  | 7 |  | 14 |  | 15 |  | 14 |  | 7 |
Materials |  | 5 |  | 6 |  | (17 | ) | 8 |  | 9 |  | (11 | )
Royalties |  | 45 |  | 35 |  | 29 |  | 92 |  | 70 |  | 31 |
Construction Cost |  | 21 |  | 18 |  | 17 |  | 46 |  | 28 |  | 64 |
Purchased Energy |  | 131 |  | 143 |  | (8 | ) | 243 |  | 281 |  | (14 | )
Other Expenses |  | 25 |  | 30 |  | (17 | ) | 52 |  | 39 |  | 33 |
Total |  | 538 |  | 492 |  | 9 |  | 1.045 |  | 956 |  | 9 |

Statement of Results |  | 2Q12 |  | 2Q11 |  | Change % |  | 1S12 |  | 1S11 |  | Change % |
Net Revenue |  | 1.246 |  | 1.047 |  | 19 |  | 2.451 |  | 2.054 |  | 19 |
Operating Expenses |  | 538 |  | 492 |  | 9 |  | 1.045 |  | 956 |  | 9 |
EBIT |  | 708 |  | 555 |  | 28 |  | 1.406 |  | 1.098 |  | 28 |
EBITDA |  | 799 |  | 644 |  | 24 |  | 1.586 |  | 1.282 |  | 24 |
Financial Result |  | (166 | ) | (160 | ) | 4 |  | (334 | ) | (331 | ) | 1 |
Provision for Income Taxes, Social Cont & Deferred Income Tax |  | (177 | ) | (130 | ) | 36 |  | (351 | ) | (255 | ) | 38 |
Net Income |  | 365 |  | 265 |  | 38 |  | 721 |  | 512 |  | 41 |

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Cemig Consolidated — Tables

Energy Sales (Consolidated) |  | 2Q12 |  | 2Q11 |  | Change % |  | 1S12 |  | 1S11 |  | Change % |
Residential |  | 2.837 |  | 2.618 |  | 8 |  | 5.786 |  | 5.449 |  | 6 |
Industrial |  | 6.474 |  | 6.491 |  | (0 | ) | 12.630 |  | 12.748 |  | (1 | )
Commercial |  | 1.964 |  | 1.732 |  | 13 |  | 3.968 |  | 3.542 |  | 12 |
Rural |  | 706 |  | 611 |  | 16 |  | 1.273 |  | 1.148 |  | 11 |
Others |  | 1.087 |  | 1.005 |  | 8 |  | 2.156 |  | 1.984 |  | 9 |
Subtotal |  | 13.068 |  | 12.457 |  | 5 |  | 25.813 |  | 24.871 |  | 4 |
Own Consumption |  | 16 |  | 14 |  | 14 |  | 32 |  | 29 |  | 10 |
Supply |  | 3.256 |  | 3.412 |  | (5 | ) | 6.711 |  | 6.822 |  | (2 | )
Transactions on the CCEE |  | 547 |  | 1.040 |  | (47 | ) | 2.919 |  | 3.169 |  | (8 | )
Sales under the Proinfa program |  | 20 |  | 13 |  | 54 |  | 51 |  | 26 |  | 96 |
TOTAL |  | 16.907 |  | 16.936 |  | (0 | ) | 35.526 |  | 34.917 |  | 2 |

Energy Sales |  | 2Q12 |  | 2Q11 |  | Change % |  | 1S12 |  | 1S11 |  | Change % |
Residential |  | 1.533 |  | 1.313 |  | 17 |  | 3.098 |  | 2.613 |  | 19 |
Industrial |  | 1.127 |  | 1.076 |  | 5 |  | 2.207 |  | 2.083 |  | 6 |
Commercial |  | 878 |  | 736 |  | 19 |  | 1.747 |  | 1.477 |  | 18 |
Rural |  | 193 |  | 164 |  | 18 |  | 357 |  | 316 |  | 13 |
Others |  | 365 |  | 327 |  | 12 |  | 712 |  | 625 |  | 14 |
Electricity sold to final consumers |  | 4.096 |  | 3.616 |  | 13 |  | 8.121 |  | 7.114 |  | 14 |
Unbilled Supply, Net |  | 6 |  | 22 |  | (73 | ) | 8 |  | 34 |  | (76 | )
Supply |  | 401 |  | 395 |  | 2 |  | 828 |  | 760 |  | 9 |
Transactions on the CCEE |  | 159 |  | 32 |  | 397 |  | 282 |  | 99 |  | 185 |
Sales under the Proinfa program |  | 5 |  | 2 |  | 150 |  | 15 |  | 6 |  | — |
TOTAL |  | 4.667 |  | 4.067 |  | 15 |  | 9.254 |  | 8.013 |  | 15 |

Sales per Company

Cemig Distribution

Sales 2Q12 Sales |  | GWh |
Industrial |  | 2.094 |
Residencial |  | 4.384 |
Rural |  | 1.265 |
Commercial |  | 2.722 |
Others |  | 1.619 |
Sub total |  | 12.084 |
Wholesale supply |  | 137 |
Total |  | 12.221 |

Independent Generation

Sales 2Q12 Sales |  | GWh |
Horizontes |  | 49 |
Ipatinga |  | 160 |
Sá Carvalho |  | 277 |
Barreiro |  | 49 |
CEMIG PCH S.A |  | 50 |
Rosal |  | 127 |
Capim Branco |  | 302 |
Cachoeirão |  | 41 |
PARQUE EÓLICO |  | 51 |
PIPOCA |  | 29 |
Baguari |  | 115 |
Vendas CCEE (PLD) |  | 106 |
TOTAL |  | 1356 |

Cemig Consolidated by Company

Sales 2Q12 Sales |  | GWh |  | Participação |
Cemig Distribution |  | 12.221 |  | 34 | %
Cemig GT |  | 19.070 |  | 54 | %
Wholesale Cemig Group |  | 4.324 |  | 12 | %
Wholesale Light Group |  | 1.356 |  | 4 | %
Independent Generation |  | (1.303 | ) | — |
RME |  | (142 | ) | — |
Total |  | 35. 526 |  | 100 | %

Cemig GT

Sales 2Q12 Sales |  | GWh |
Free Consumers |  | 9.887 |
Wholesale supply |  | 7.057 |
Wholesale supply others |  | 4.842 |
Wholesale supply Cemig Group |  | 1.048 |
Wholesale supply bilateral contracts |  | 1.167 |
Transactions in the CCEE (PLD) |  | 2.468 |
Total |  | 19.412 |

RME (25%)

Sales 2Q12 Sales |  | GWh |
Industrial |  | 251 |
Residencial |  | 1.402 |
Commercial |  | 1.115 |
Rural |  | 9 |
Others |  | 569 |
Wholesale supply |  | 765 |
Transactions in the CCEE (PLD) |  | 213 |
Total |  | 4.324 |

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Table of Contents

Operating Revenues |  | 2Q12 |  | 2Q11 |  | Change % |  | 1S12 |  | 1S11 |  | Change % |
Sales to end consumers |  | 4.101 |  | 3.637 |  | 13 |  | 8.129 |  | 7.148 |  | 14 |
TUSD |  | 535 |  | 418 |  | 28 |  | 1.032 |  | 904 |  | 14 |
Supply + Transactions in the CCEE |  | 560 |  | 427 |  | 31 |  | 1.110 |  | 859 |  | 29 |
Revenues from Trans. Network |  | 364 |  | 340 |  | 7 |  | 746 |  | 642 |  | 16 |
Construction revenue |  | 424 |  | 427 |  | (1 | ) | 700 |  | 696 |  | 1 |
Gas Supply |  | 177 |  | 143 |  | 24 |  | 339 |  | 269 |  | 26 |
Others |  | 145 |  | 112 |  | 29 |  | 314 |  | 223 |  | 41 |
Subtotal |  | 6.306 |  | 5.504 |  | 15 |  | 12.370 |  | 10.741 |  | 15 |
Deductions |  | (1.892 | ) | (1.699 | ) | 11 |  | (3.808 | ) | (3.347 | ) | 14 |
Net Revenues |  | 4.414 |  | 3.805 |  | 16 |  | 8.562 |  | 7.394 |  | 16 |

Operating Expenses |  | 2Q12 |  | 2Q11 |  | Change % |  | 1S12 |  | 1S11 |  | Change % |
Personnel/Administrators/Councillors |  | 310 |  | 322 |  | (4 | ) | 652 |  | 604 |  | 8 |
Employee Participation |  | 62 |  | 1 |  |  |  | 118 |  | 24 |  | 392 |
Forluz — Post-Retirement Employee Benefits |  | 37 |  | 31 |  | 19 |  | 70 |  | 62 |  | 13 |
Materials |  | 19 |  | 29 |  | (34 | ) | 34 |  | 47 |  | (28 | )
Contracted Services |  | 257 |  | 253 |  | 2 |  | 510 |  | 468 |  | 9 |
Purchased Energy |  | 1.385 |  | 1.016 |  | 36 |  | 2.532 |  | 2.092 |  | 21 |
Depreciation and Amortization |  | 245 |  | 236 |  | 4 |  | 483 |  | 476 |  | 1 |
Royalties |  | 47 |  | 36 |  | 31 |  | 96 |  | 74 |  | 30 |
Operating Provisions |  | (1 | ) | 66 |  | (102 | ) | 96 |  | 107 |  | (10 | )
Charges for Use of Basic Transmission Network |  | 243 |  | 192 |  | 27 |  | 485 |  | 382 |  | 27 |
Gas Purchased for Resale |  | 118 |  | 81 |  | 46 |  | 218 |  | 143 |  | 52 |
Cost from Operation |  | 422 |  | 428 |  | 16 |  | 698 |  | 696 |  | 0 |
Other Expenses |  | 82 |  | 97 |  | (15 | ) | 179 |  | 166 |  | 8 |
TOTAL |  | 3.226 |  | 2.788 |  | 16 |  | 6.171 |  | 5.341 |  | 16 |

Financial Result Breakdown |  | 2Q12 |  | 2Q11 |  | Change % |  | 1S12 |  | 1S11 |  | Change % |
Financial revenues |  | 223 |  | 262 |  | (15 | ) | 444 |  | 442 |  | 0 |
Revenue from cash investments |  | 72 |  | 113 |  | (36 | ) | 137 |  | 198 |  | (31 | )
Arrears penalty payments on electricity bills |  | 46 |  | 44 |  | 5 |  | 84 |  | 78 |  | 8 |
Minas Gerais state government |  | 34 |  | 57 |  | (40 | ) | 78 |  | 79 |  | (1 | )
FX variations |  | 4 |  | 20 |  | (80 | ) | 30 |  | 26 |  | 15 |
Gains on financial instruments |  | 19 |  | — |  | — |  | 25 |  | — |  | — |
Adjustment to present value |  | 1 |  | (1 | ) | (200 | ) | 1 |  | 1 |  | — |
Other |  | 47 |  | 29 |  | 62 |  | 89 |  | 60 |  | 48 |
Financial expenses |  | (525 | ) | (495 | ) | 6 |  | (1.009 | ) | (936 | ) | 8 |
Costs of loans and financings |  | (331 | ) | (365 | ) | (9 | ) | (664 | ) | (668 | ) | (1 | )
FX variations |  | (43 | ) | (2 | ) | 2.050 |  | (59 | ) | (3 | ) | 1.867 |
Monetary updating — loans and financings |  | (47 | ) | (45 | ) | 4 |  | (80 | ) | (96 | ) | (17 | )
Monetary updating — paid concessions |  | (12 | ) | (3 | ) | — |  | (13 | ) | (13 | ) | — |
Losses on financial instruments |  | — |  | (3 | ) | (100 | ) | — |  | (13 | ) | (100 | )
Charges and monetary updating on Post-employment obligations |  | (29 | ) | (31 | ) | (6 | ) | (67 | ) | (63 | ) | 6 |
Amortization of goodwill premium /discount on investments |  | (17 | ) | (3 | ) | 467 |  | (39 | ) | (26 | ) | 50 |
Other |  | (46 | ) | (43 | ) | 7 |  | (87 | ) | (54 | ) | 61 |
Financial revenue (expenses) |  | (302 | ) | (233 | ) | 30 |  | (565 | ) | (494 | ) | 14 |

Statement of Results |  | 2Q12 |  | 2Q11 |  | Change % |  | jun/12 |  | jun/11 |  | Change % |
Net Revenue |  | 4.414 |  | 3.805 |  | 16 |  | 8.562 |  | 7.394 |  | 16 |
Operating Expenses |  | 3.226 |  | 2.788 |  | 16 |  | 6.171 |  | 5.341 |  | 16 |
EBIT |  | 1.188 |  | 1.017 |  | 17 |  | 2.391 |  | 2.053 |  | 16 |
EBITDA |  | 1.433 |  | 1.253 |  | 14 |  | 2.874 |  | 2.530 |  | 14 |
Financial Result |  | (303 | ) | (234 | ) | 29 |  | (565 | ) | (494 | ) | 14 |
Provision for Income Taxes, Social Cont & Deferred Income Tax |  | (281 | ) | (260 | ) | 8 |  | (590 | ) | (510 | ) | 16 |
Net Income |  | 604 |  | 523 |  | 16 |  | 1.236 |  | 1.049 |  | 18 |

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Cash Flow Statement |  | 2Q12 |  | 2Q11 |  | Change % |  | 1S12 |  | 1S11 |  | Change % |
Cash at beginning of period |  | 2.235 |  | 2.733 |  | (18 | ) | 2.862 |  | 2.979 |  | (4 | )
Cash generated by operations |  | 807 |  | 1.017 |  | (21 | ) | 1.745 |  | 1.771 |  | (1 | )
Net profit |  | 605 |  | 523 |  | 16 |  | 1.236 |  | 1.049 |  | 18 |
Depreciation and amortization |  | 245 |  | 229 |  | 7 |  | 483 |  | 462 |  | 5 |
Suppliers |  | 194 |  | (52 | ) | (473 | ) | 92 |  | (68 | ) | (235 | )
Provisions for operational losses |  | 73 |  | 97 |  | (25 | ) | 81 |  | 131 |  | (38 | )
Other adjustments |  | (310 | ) | 220 |  | (241 | ) | (147 | ) | 197 |  | (175 | )
Financing activities |  | (172 | ) | (210 | ) | (18 | ) | (554 | ) | (234 | ) | 137 |
Financings obtained and capital increase |  | 749 |  | 706 |  | 6 |  | 3.163 |  | 1.031 |  | 207 |
Interest on Equity, and dividends |  | (645 | ) | (534 | ) | — |  | (654 | ) | (534 | ) | — |
Payments of loans and financings |  | (276 | ) | (382 | ) | (28 | ) | (3.063 | ) | (731 | ) | 319 |
Investment activity |  | (535 | ) | (503 | ) | 6 |  | (1.718 | ) | (1.479 | ) | 16 |
Securities - Financial Investment |  | 43 |  | 166 |  | (74 | ) | (661 | ) | (393 | ) | 68 |
Fixed and Intangible assets |  | (578 | ) | (669 | ) | (14 | ) | (1.057 | ) | (1.086 | ) | (3 | )
Cash at end of period |  | 2.335 |  | 3.037 |  | (23 | ) | 2.335 |  | 3.037 |  | (23 | )

BALANCE SHEETS (CONSOLIDATED) - ASSETS |  | jun/12 |  | 2011 |
CURRENT |  | 8.566 |  | 8.531 |
Cash and cash equivalents |  | 2.335 |  | 2.862 |
Securities — cash investments |  | 856 |  | 359 |
Consumers and Traders |  | 2.544 |  | 2.550 |
Concession holders — transport of energy |  | 465 |  | 427 |
Financial assets of the concession |  | 919 |  | 1.120 |
Taxes offsetable |  | 368 |  | 354 |
Income tax and Social Contribution recoverable |  | 177 |  | 221 |
Dealers - Transactions on the MAE |  | 21 |  | 22 |
Inventories |  | 67 |  | 54 |
Other credits |  | 814 |  | 562 |
NON-CURRENT |  | 28.991 |  | 28.826 |
Accounts receivable from Minas Gerais state government |  | 1.819 |  | 1.830 |
Credit Receivables Investment Fund |  | — |  | — |
Deferred income tax and Social Contribution tax |  | 1.361 |  | 2.036 |
Taxes offsetable |  | 364 |  | 328 |
Income tax and Social Contribution recoverable |  | 40 |  | 23 |
Deposits linked to legal actions |  | 1.433 |  | 1.388 |
Consumers and Traders |  | 157 |  | 159 |
Other credits |  | 340 |  | 184 |
Financial assets of the concession |  | 9.823 |  | 8.778 |
Investments |  | 195 |  | 177 |
Fixed assets |  | 8.704 |  | 8.662 |
Intangible |  | 4.755 |  | 5.261 |
TOTAL ASSETS |  | 37.557 |  | 37.357 |

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BALANCE SHEETS LIABILITIES AND SHAREHOLDERS’ EQUITY |  | jun/12 |  | 2011 |
CURRENT |  | 13.004 |  | 12.169 |
Suppliers |  | 1.282 |  | 1.190 |
Regulatory charges |  | 390 |  | 368 |
Profit shares |  | 119 |  | 90 |
Taxes, charges and contributions |  | 525 |  | 517 |
Income tax and Social Contribution tax |  | 214 |  | 129 |
Interest on Equity and dividends payable |  | 675 |  | 1.243 |
Loans and financings |  | 5.958 |  | 4.382 |
Debentures |  | 3.112 |  | 3.439 |
Salaries and mandatory charges on payroll |  | 241 |  | 272 |
Post-employment obligations |  | 97 |  | 100 |
Provision for losses on financial instruments |  | — |  | 25 |
Concessions payable |  | 16 |  | — |
Other obligations |  | 375 |  | 414 |
NON-CURRENT |  | 11.656 |  | 13.443 |
Regulatory charges |  | 227 |  | 262 |
Loans and financings |  | 4.412 |  | 5.358 |
Debentures |  | 2.560 |  | 2.600 |
Taxes, charges and contributions |  | 907 |  | 897 |
Income tax and Social Contribution tax |  | 406 |  | 1.234 |
Provisions |  | 553 |  | 549 |
Concessions payable |  | 153 |  | 130 |
Post-employment obligations |  | 2.205 |  | 2.187 |
Other obligations |  | 233 |  | 226 |
STOCKHOLDERS’ EQUITY |  | 12.897 |  | 11.745 |
Registered capital |  | 4.265 |  | 3.412 |
Capital reserves |  | 3.954 |  | 3.954 |
Profit reserves |  | 2.354 |  | 3.293 |
Adjustments to Stockholders’ equity |  | 987 |  | 1.081 |
Accumulated Conversion Adjustment |  | 9 |  | 5 |
Funds allocated to increase of capital |  | 1.328 |  | — |
TOTAL LIABILITIES |  | 37.557 |  | 37.357 |

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7. Presentation of the Second Quarter 2012 Results

61

| 2Q12 Results Efficient Management sustains Cemig as leader of the power sector

| Disclamer Some statements or estimates in this material may represent expectations about future events or results, which are subject to risks and uncertainties both known and unknown. There is no guarantee that the events or results referred to in these expectations will in fact take place. These expectations are based on present assumptions and analyses from the point of view of our management, in accordance with their experience and other factors such as the macroeconomic environment, and market conditions in the electricity sector, and on expected future results, many of which are not under Cemig’s control. Important factors that can lead to significant differences between actual results and the projections about future events or results include: Cemig’s business strategy; Brazilian and international economic conditions; technology; Cemig’s financial strategy; changes in the electricity sector; hydrological conditions; conditions in the financial or energy markets; uncertainty on our results from future operations, plans, or objectives; and other factors. Because of these and other factors, the actual results of Cemig may differ significantly from those indicated or implicit in such statements. The information and opinions contained herein should not be understood as a recommendation to potential investors and no investment decision should be based on the veracity, currentness or completeness of this information or these opinions. None of Cemig’s professionals nor any of their related parties or their representatives shall have any liability for any losses that may result from the use of the content of this presentation. To evaluate the risks and uncertainties as they relate to Cemig, and to obtain additional information about factors that could give rise to different results from those estimated by Cemig, please consult the Risk Factors section included in the Reference Form (Formulário de Referência) filed with the Brazilian Securities Commission (Comissão de Valores Mobiliários – CVM), and the 20-F Form filed with the U.S. Securities and Exchange Commission (SEC).

| 2Q2012 Results (R$ million) Net revenue Ebitda Net Income 2Q2012 4,414 1,433 1,253 523 2Q2012 2Q2011 Sucessful strategy sustains growing results Cemig is showing strong expansion — while continuing to add value for shareholders Ebitda of R$ 1.4 billion: sustained by Cemig’s balanced portfolio of businesses Higher average power sale prices: leading to record net income in 2Q12 Highlight of the period: continuing improvement in operational efficiency 15% 3,805 2Q2011 14% 16% 604 2Q2011 2Q2012

| Execution of the strategy takes Cemig to a new level Long-term Strategic Plan calls for sustainable growth – to ensure addition of value for shareholders in the long term Leadership in the process of consolidation of Brazil’s power industry Balanced growth in the three segments – through acquisitions and new projects Efficiency of the growth model adopted strengthens Cemig’s strategic position Credit quality and financial solidity sustain access to funding, and new opportunities

| Cemig: a benchmark in the capital markets Cemig: record market value R$ 31.8 billion on August 8th Strong value reflects operational performance, commitment to shareholders, and leadership in the Brazilian power industry Cemig is one of the most awarded in the Capital Market IR Magazine Awards 2012 Best company in the Energy and Utilities Best community of investment analysts meet Best conference call Winner of the Transparency Trophy given by accounting and oversight organizations Anefac, Fipecafi, Serasa, Experian Cemig: market cop. - R$ bn * Catacaa no dia 08/08/2012

| Cemig is present in Brazil’s major new generation projects Santo Antônio 5 generating units already operating — with total capacity of 348 MW 11 generating units will be operating by December 2012 — totaling 781 MW 44 generating units will be operating by December 2015 — totaling 3,124 MW Belo Monte 11% of works completed February 2015: commercial start-up of first generating unit at Pimental Site November 2015: commercial start-up of first generating unit at Belo Monte Site January 2019: commercial start-up of last generating unit at Belo Monte Site Cemig is participating in a joint feasibility study for plants of the Tapajόs complex — for installed capacity of 10,682 MW

| Clean power: Cemig’s group is the largest in Wind Power and Small Hydro Plant Start up of the Alto Sertão I wind power complex Project of Renova Energia Light owns 22.03% of Renova Energia S.A. Largest wind farm in Latin America —14 operating units, installed capacity of 294.4 MW Total investment R$ 1.2 billion Increase of 29.4% in Brazilian wind power matrix Start up of Paracambi Small Hydro Plant Started commercial operation July 17, 2012 — total capacity 25.0 MW, assured energy level 21 MW average Cemig GT owns 49% of the plant; Light 51%

| Historic moment as Taesa moves to a new level Primary issue of 24 million new shares, with supplementary offering of a further 3 million, at R$ 65 Net proceeds of R$ 1.7 billion After the issue, Cemig’s holding in Taesa is 43% Settlement of transaction with Abengoa to acquire the remaining 50% of Unisa Payment of approximately R$ 904 million Issue of R$ 905 million in short-term notes – for 104% of CDI rate Stockholding restructuring: R$ 1.7 billion transfer to Taesa of Cemig’s minority holdings in TBE group Pays R$ 214 million in dividends (R$ 4.88 per share) on 2011 profit Remaining R$ 214 million will be paid in 3Q12

| Sales: leadership in power trading Power sales are strategic in adding value for shareholders Excellence in relationship with clients is Cemig’s big Free Market differential Profound expertise in power sales allows Cemig to create accretive contracts to our clients Cemig has 25% of the Free Market Cemig signs 9-year electricity supply contract to Samarco Mineração Total value of contract: more than R$ 2.1 billion Prices of contract are in line with Cemig’s published guidance In effect for the years 2014 — 2022

| Distribution: focus on operational efficiency Cemig D and Light are adapting operations to the third tariff cycle Quality of Cemig D’s operational efficiency program generates consistent results Significant reduction in PMSO: reaches 20% YoY for 2Q12 vs. 2Q11 Appropriate investment adds efficiency in the distribution business Strengthening and expansion of the distribution system is vital for the next tariff cycle, which begins in 2013 for both Cemig D and Light Change in Executive Board of Light also begins new phase with a focus on expansion Board elected Dr. Paulo Roberto Ribeiro Pinto CEO Great experience in the Brazilian electricity sector More than 10 years’ at Light, in many areas of the company

| Gasmig: continuing to expand operations New natural gas network facilities in place in Belo Horizonte Start of works on “South Ring” Project, serving the City’s Center-South zone 3.5-km expansion of the underground network in Pampulha region “Going Inland” Project takes natural gas to cities of Governador Valadares, Itabira and Pouso Alegre “City Ring” Project will expand natural gas supply to the industrial region of Belo Horizonte Working agreement between Gasmig, Belo Horizonte City Hall, BHTrans and Iveco will facilitate project to replace diesel with natural gas in cargo transport in BH 2Q12 net income was R$ 269 million — strong 27% increase from 2Q11 Volume sold (million m3) - Standard gas plus thermal 881 551 962 1,065 1,154 2008 2009 2010 2011 2012* * Last 12 months

| Financial management Rating agency reaffirms Cemig’s credit quality Even after its acquisitions, Cemig preserves a solid financial profile Cemig’s portfolio of businesses and financial discipline position it on a path of sustainable growth and addition of value for shareholders: Solidity of results Balance between 3 main businesses (G, D, T): increases predictability, cuts risk Strong operational cash flow: pays dividends, acquisitions and debt service Quality of balance sheet Even in challenging scenarios Cemig continues to have broad access to credit 4 Low debt ratios, high debts coverage

| Debt profile Average Real Cost of the Debt(%) Main indecent FINEL/RGR DOLAR CDI IPCA IGPM URTJ OUTROS OTHERS Consolidated debt, 2Q12 CEMIG CONSOLIDATED CEMIG GT CEMIG D Total debt 16,043 8,556 3,661 Debt in foreign currency 341 2.1% 152 1.8% 66 1.8% Net debt (1) 12,851 6,414 3,335 Ebitda (2)/Interest 4.36 4.54 4.85 Net debt / Ebitda (2) 2.26 2.05 2.12 Net debt / (Stockholders’ equity + Net debt) 49.9% 55.2% 55.3% (1) Net debt = (Total debt) (1) Net debt = (total debt) - (Cash and cash equivalents). (2) Ebitda is for Last 12 months * At conclant December 2010 prices; induding investors.

| Sustainability: Our commitment Included in the DJSI World for the 12th year running The only LatAm electricity company continuously in the index since it began 7th year running in Bovespa’s IES (Corporate Sustainability) Index Launch of Cemig’s Anti-fraud Policy and “Ethical Conduct” (http://www.cemig.com.br/CondutaEtica/Paginas/default.aspx) Climate change: Publication of the First Greenhouse Gases Inventory. Independently third-part verified — as required by ISO 14064 2011 Annual Sustainability Report, integrated, earns GRI A+ (also 3rd-party verified) Cemig launches Proximidade Program — relationship with communities neighboring hydroelectric plants

| 2Q12 — Results in Focus

| 2Q12 Results in Focus R$ million

| Consolidated sales volume In spite of the challenging economic context, electricity sales volume was stable in 2Q12, due to expanding sales in the concession area, and relationship with clients Lower volume of settlements in the CCEE reflect lower volume of secondary electricity allocated in the quarter Positive outlook for resumption in growth in the economy in coming quarters

| Cemig GT — Sales Volume Lower volume sold reflects lower volume of secondary electricity in the period Increase in CCEE spot price (PLD) more than offsets the fall in secondary electricity Startup of Santo Antônio Hydro plant and Paracambi Small Hydro Plant will contribute to expansion of sales volume in 2012 We continue to increase sales to the free market

| Cemig D – sales by consumer category In spite of challenging macro context, sales to final consumers were 2.4% up YoY in 2Q12 Adjusted for migration of free clients, industrial consumption was up of 3.6% in 2Q Sales volume, 2Q11 to 2Q12 - GWh Sales by consumer type – GWh CONSUMERS 2Q2012 2Q2011 CHANGE Residential 2,198 2,086 5% Industrial 1,050 1,187 -12% +3.6% Commercial 1,348 1,290 4% Rural 702 608 15% Others 817 798 2% Subtotal 6,114 5,969 2.4% + 5.4% CCEE 4 44 -91% TOTAL 6,118 6,013 2% +4.7% Sales by consumer category - 2Q12 Residential Industrial Commercial Rural Others

| Consolidated net revenue Balanced portfolio of businesses achieved 16% growth in net revenue in 2Q12 Expansion in natural gas demand in Minas boosts Gasmig’s revenue by almost R$ 36 mn Gain on CCEE transactions reflects increase in the spot price (“PLD”) Cemig consolidated net revenue 2Q11 to 2Q12 - R$ million

| Consolidated operational expenses Operational efficiency program is getting results: Cemig D’s PMSO costs cut by 20% year-on-year in 2Q12 Higher profit-sharing expense reflects change of date of provisioning Increase in operational expenses in 2Q12 is mainly non-controllable cost items, which are passed through to the tariff Biggest item was an increase in expense on energy bought for resale, in Cemig D Expenses, 2Q11 to 2Q12 - R$ mn Consolidated expenses, 2Q11 to 2Q12 – R$ mn

| Balanced portfolio sustains Ebitda EBITDA 2Q2012 % CEMIG GT 699 49 CEMIG D 372 26 LIGHT 67 5 GASMIG 17 1 TBE 75 5 TAESA 100 7 OTHERS 113 CONSOLIDATED 1,443 100% Ebitda of principal companies Net Income by activity, 2Q12 Generation Transmission Distribution / Other Distribution/Others

| Strong cash position sustains investments Cash Flow Statements DESCRICÃO 2Q2012 2Q2011 Cash at start of period 2,235 2,733 Cash generated by operations 807 1,017 Net income Depreciation and amortization Suppliers Provisions for operational losses Other adjustments 605 245 194 73 -310 523 229 -52 97 220 Financings obtained and capital increase Interest on Equity, and dividends Payment of loans and financings 749 -645 -276 706 -534 -382 Cash investments, securities, etc. PP&E/ Intangible 43 -578 166 -669 CASH AT END OF PERIOD 2,335 3,037 Cash investment 856 715 Financing activities -172 -210 Investment activities -532 -503

| Capex program INVESTMENT JUNE 2012 ACTUAL 2012* 2013* Priority 1 Projects 622 2,278 1,178 Generation 7 85 225 Transmission 12 138 72 Distribution 602 2,052 881 Cemig (holding company) — 4 — Light for Everyone — II and III -6 27 — June 2012 R$ million * Planned values

| Cemig: a global investment option TOTAL ASSETS R$ 37.6 STOCKHOLDERS’ EQUITY R$ 12.9 CONSOLIDATED NET REVENUE (LTM) R$ 16.9 MARKET VALUE* R$ 31.8 OPERATIONS THROUGHOUT ALMOST ALL OF BRAZIL’S LAND AREA FIRST INVESTMENTS OUTSIDE BRAZIL IN OPERATION *Source for market value: Economàtica, stock price of August 8th, 2012. LTM = last 12 months. R$ billion

| Investor Relations ri@cemig.com.br Phone: (55-31) 3506-5024 Fax: (55-31) 3506-5025 A Melhor Energia do Brasil.

| Glossary ACR: Regulated Contracting Environment in which purchases and sales involving Distributors occur by means of public auctions. ACL: Free Contracting Environment, in which purchases and sales of electricity among Free Clients, Marketers and Generators occur, through freely negotiated bilateral contracts. ANEEL: The Brazilian energy sector is regulated by ANEEL, an independent federal regulatory agency. BRGAAP: Brazilian accounting principles. CCC - Conta Consumo de Combustiveis Fósseis [Fossil Fuel Consumption Account]: The CCC was created to generate financial reserves to cover higher costs associated with greater use of thermoelectric plants in the event of drought, as a function of the fact that marginal operating costs of thermoelectric plants are higher than those of hydroelectric plants. Every energy company must make an annual contribution to the CCC. The annual contributions are calculated based on cost estimates of the fuel required by thermoelectric plants in the following year. CCEE - Cămara de Comercialização de Energia Elctrica [Electricity Marketing Council]: Its purpose is to make marketing electricity on the National Interconnected System viable. CDE - Conta de Desenvolvimento Energẻtico [Energy Development Account]: Source of the subsidy created to make alternative sources of energy – such as wind-driven and biomass – competitive, and to promote universalization of electricity services. Its resources come from annual payments made by concessionaires for the use of public assets, penalties and fines imposed by ANEEL, and the CDE will remain operational for 25 years, and it will be administered by Eletrobrás. DEC - Duração Equvivalente de Interrupção por Unidade Consumidora [Equivalent Duration of Interruption per Consumer Unit]: During a period observed in each consumer unit of a group that is being considered, the average interval of time of an interruption in electricity distribution. Dividend Yield: The annual Percentage of return that a shareholder receives in the form of dividends and Interest on Own Capital (per share) in relation to the share price. FEC - Freqűência Equivalente de Interrupção de Energia [Equivalent Frequency of Electricity Interruption]: Number of interruptions in electricity distribution that occur on average during an observed period, in each consumer unit of a determined group. GSF: Generating Scaling Factor. The factor used to determine the Allocated Energy from each generator participating in the National Interconnected System. It is calculated as a function of availability of generation and the verified market, among other parameters. FIDC (Receivables Fund) — Fund of credit rights. It is formed of realizable assets. Hedge: Term that means safeguard. It is a mechanism used by people or companies who need to protect themselves against price fluctuations that usually occur in commodities or exchange markets. EBITDA: Earnings Before Interest (Financial Results), Taxes, Depreciation and Amortization. It states the Generation of Operating Cash of a company, and provides a snapshot of how much money a company is generating from its main business. EBITDA / NET OPERATING REVENUES (EBITDA MARGIN): Percentage that relates Generation of Operating Cash with Operating Revenues. It shows the percentage at which revenues become cash after operations, giving an idea of the business’ profitability.

| Glossary Payout – Percent of net income to be distributed as dividends. P/L (Price to Earnings Ratio) – Relationship between share price and profit per share. P/L – Shareholders’ Equity PLD – Price for Liquidation of Differences, called “Spot” price. RTD- Deferred Tariff Adjustment: ANEEL defined the results of the periodic tariff adjustment of Cemig Distribution, which includes restatement of electricity supply tariffs at levels that are compatible with preserving the economic-financial balance of the concession contract, providing sufficient revenues to cover efficient operating costs and adequate remuneration on investments. The average adjustment that was applied on a provisory basis to Cemig’s tariffs on April 8, 2003 was 31.53%, while the definitive tariff restatement of CEMIG should have been 44.41%. The 12.88% difference will be offset through an increase in each projected tariff adjustment to occur from 2004 to 2007, cumulatively. The difference between the tariff adjustment to which Cemig Distribution has a right and the tariff effectively charged consumers was recognized as a Regulatory Asset. RTE – Extraordinary Tariff Restatement. Tariff adjustment granted in December 2001 to distributors and generators in regions that experienced rationing. Projected in the General Agreement of the Electricity Sector, it resulted in a 2.9% increase to tariffs for residential consumers (with the exception of Low Income Consumers) and rural consumers, and 7.9% for other consumers. The objective of the adjustment was to replace the losses that energy distributors and generators had from the reduced consumption imposed by the government. The duration of the adjustment varies according to the time necessary to recover each concessionairẻ’s losses. RGR – Global Reversion Reserve: Annual number embedded in concessionaires’ costs to generate resources for expansion and improvement of public electricity services. The amounts are collected on a monthly basis in favor of Electrobrăs, which is responsible for administering resources, and they must also be used by Procel. Total Shareholder Return – This is the shareholder return obtained by adding dividends (yield) and the percentage appreciation of the shares. TUSD – Distribution System Usage Tariffs: The TUSD is paid by generation companies and by Free Clients for use of the distribution system of the distribution concessionaire to which the generator or free client is connected, and it is revised annually according to the inflation index and investments made by the distributors in the previous year to maintain and expand the network. The amount to be paid by the user connected to the distribution system is calculated by multiplying the amount of energy contracted with the distribution concessionaire for each connection point, in kW, by the tariff in R$/kW, which is established by ANEEL. UHE – Hydroelectric Plant: Plant that uses mechanical energy from water to turn the turbines and generate electricity. UTE - Thermoelectric Plant: Plant in which the chemical energy contained in fossil fuels is converted into electricity. Market value – This is the value of the company calculated by multiplying the number of shares by their respective price. WACC – Weighted Average Cost of Capital: average weighted cost of capital.

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8. Summary of Principal Decisions of the 542 nd Meeting of the Board of Directors

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COMPANHIA ENERGÉTICA DE MINAS GERAIS – CEMIG

LISTED COMPANY

CNPJ 17.155.730/0001-64

NIRE 31300040127

BOARD OF DIRECTORS

542 ND MEETING

SUMMARY OF PRINCIPAL DECISIONS

The Board of Directors of Cemig (Companhia Energética de Minas Gerais), at its 542 nd meeting, held on August 16, 2012, decided the following:

1 Approval of a settlement, in the application for an order of mandamus disputing amounts of credits owed under the CRC (Results Compensation) Account, in the legal proceedings brought by the Brazilian Federal Treasury for reimbursement, by Cemig to the Federal Government, of part of the credits receivable under that Account.

Av. Barbacena 1200 | Santo Agostinho | 30190-131 Belo Horizonte, MG | Brazil | Tel.: +55 31 3506-5024 | Fax +55 31 3506-5025

This text is a translation, provided for information only. The original text in Portuguese is the legally valid version.

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9. Summary of Principal Decisions of the 543 rd Meeting of the Board of Directors

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COMPANHIA ENERGÉTICA DE MINAS GERAIS – CEMIG

LISTED COMPANY

CNPJ 17.155.730/0001-64

NIRE 31300040127

BOARD OF DIRECTORS

543 RD MEETING

SUMMARY OF PRINCIPAL DECISIONS

The Board of Directors of Cemig (Companhia Energética de Minas Gerais), at its 543 rd meeting, held on August 22, 2012, decided the following:

1. Increase in the share capital of, and orientation for vote in meetings of, Parati S.A. / Complementary additions to a Board Spending Decision (CRCA).

2. Appointment of Chief Officers for management of Usina Térmica Ipatinga S.A., Sá Carvalho S.A., Cemig Baguari Energia S.A. and Cemig Serviços S.A..

3. Appointment of Chief Officers for management of Cemig Serviços and Efficientia S.A..

4. Appointment of Chief Officers for management of Cemig Trading S.A. and Empresa de Serviços de Comercialização de Energia Elétrica S.A..

5. Appointments of Chief Officers for management of Empresa Brasileira de Transmissão de Energia S.A., Empresa Norte de Transmissão de Energia S.A., Empresa Regional de Transmissão de Energia S.A., Lumitrans Companhia Transmissora de Energia Elétrica and Sistema de Transmissão Catarinense.

6. Appointments of Chief Officers for management of Empresa Catarinense de Transmissão de Energia S.A.) and Empresa Santos Dumont de Energia S.A..

7. Appointment of a Chief Officer for Management of Norte Energia S.A..

Av. Barbacena 1200 | Santo Agostinho | 30190-131 Belo Horizonte, MG | Brazil | Tel.: +55 31 3506-5024 | Fax +55 31 3506-5025

This text is a translation, provided for information only. The original text in Portuguese is the legally valid version.

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8. Signature of a cooperation agreement, with the State of Minas Gerais, Fapemig, Cetec, Senai—DR/MG, Fiemg and Adene.

9. Mutual Cooperation Secondment Agreement (secondment of employee) / Signature of a settlement and final receipt agreement, with the State of Minas Gerais, through the State Planning and Management Department (Seplag) / Cancellation of a CRCA.

10. Signature of a technical cooperation agreement with the State Education Department.

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10. Summary of Principal Decisions of the 544 th Meeting of the Board of Directors

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COMPANHIA ENERGÉTICA DE MINAS GERAIS – CEMIG

LISTED COMPANY

CNPJ 17.155.730/0001-64

NIRE 31300040127

BOARD OF DIRECTORS

544 TH MEETING

SUMMARY OF PRINCIPAL DECISIONS

The Board of Directors of Cemig (Companhia Energética de Minas Gerais), at its 544 th meeting, held on August 23, 2012, decided the following:

1. Cost of Capital review.

2. 1 st Integrated Strategic Planning of Cemig’s Group.

3. Review in the Company’s Long-Term Strategic Plan — 2012-2035

Av. Barbacena 1200 | Santo Agostinho | 30190-131 Belo Horizonte, MG | Brazil | Tel.: +55 31 3506-5024 | Fax +55 31 3506-5025

This text is a translation, provided for information only. The original text in Portuguese is the legally valid version.

96