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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 2009

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

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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.

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COMPANHIA ENERGÉTICA DE MINAS GERAIS - CEMIG

Listed Company

CNPJ 17.155.730/0001-64

NIRE 31300040127

SUMMARY OF DECISIONS OF THE 462ND MEETING OF THE BOARD OF DIRECTORS

At its 462nd meeting, held on July 23, 2009, the Board of Directors of Companhia Energética de Minas Gerais approved the following matter:

·                  Guarantee for issue of promissory notes and non-convertible debentures.

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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CEMIG GERAÇÃO E TRANSMISSÃO S.A.

Listed company – CNPJ 06.981.176/0001-58

Summary of principal decisions

At its 93rd meeting, held on July 23, 2009, the Board of Directors of Cemig Geração e Transmissão S.A. approved the following:

1.               Issue of promissory notes and non-convertible debentures.

2.               Contracting of services for issue of promissory notes and non-convertible debentures.

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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CEMIG GERAÇÃO E TRANSMISSÃO S.A.

Listed company – CNPJ 06.981.176/0001-58

Summary of principal decisions

At its 94th meeting, held on July 29, 2009, the Board of Directors of Cemig Geração e Transmissão S.A. (“Cemig GT”) approved the following:

1.               Authorization to seek a proposal for issuance of debt in the international market (Eurobonds).

2.               Authorization for Cemig GT to remain a stockholder, with 49% of the registered capital, in Transmissora Atlântico de Energia Elétrica S.A. (TAESA).

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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COMPANHIA ENERGÉTICA DE MINAS GERAIS — CEMIG

Listed Company

CNPJ 17.155.730/0001-64

NIRE 31300040127

SUMMARY OF DECISIONS

At its 463rd meeting, held on August 5, 2009, the Board of Directors of Companhia Energética de Minas Gerais decided the following:

·                  To authorize Cemig GT, subject to confirmation by an Extraordinary General Meeting of Shareholders, to:

(a)                                  reduce its holding in Terna Participações S.A. (“Terna”), to a minimum level of 50% less 1 (one) of the common shares, and 100% of the preferred shares, through a partnership to be constituted with Fundo de Investimentos em Participação (FIP) Coliseu, if it becomes possible for all the units of this FIP (Equity Investment Fund) to be subscribed; and,

(b)                                 grant to that Equity Investment Fund the right to sell the whole of its stockholdings in Terna to Cemig GT.

·                  To submit to an Extraordinary General Meeting of Shareholders a proposal for authorization of the company’s representative at the Extraordinary General Meeting of Shareholders of Cemig GT to vote in favor of: ratification of the above decision by the Board of Directors of Cemig GT, in the event that subscription of the totality of the units of the FIP referred to is possible; and grant to FIP Coliseu of the right of sale also referred to above.

·                  To call an Extraordinary General Meeting of Shareholders to decide on the above subjects, to be held on August 26, 2009, at 11 a.m., at Cemig’s head office.

·                  To authorize, after ratification, by the Extraordinary General Meeting of Shareholders, of the decision by the Board of Directors referred to above, assignment to Transmissora do Atlântico de Energia Elétrica S.A. (Taesa) of the Share Purchase Agreement signed between Cemig GT and Terna Rete Elettrica Nazionale, together with all the contracts and commitments assumed by Cemig GT with the advisors who worked during the process of due diligence and formatting of the acquisition of Terna.

·                  To establish that Cemig GT shall maintain a stockholding of 49% of Taesa’s common shares, in association with FIP Coliseu which will hold the remaining 51%.

·                  To establish that the association between Cemig GT and FIP Coliseu shall be governed by a Commitment Undertaking, a Shareholders’ Agreement and Bylaws, to be submitted to decision by the Board of Directors after conclusion of the negotiation of these documents between the parties.

·                  To authorize increase in the registered capital of Taesa up to R$ 3,538,252,194.00 (three billion five hundred and thirty eight million two hundred and fifty two thousand one hundred and ninety four Reais).

·                  To authorize the representative of Cemig GT, in the Board of Directors and in the Extraordinary General Meeting of Shareholders of Taesa that decides on the said capital increase, and on the consequent alteration of the Bylaws to reflect this increase, to vote in favor of both measures.

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

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

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CEMIG GERAÇÃO E TRANSMISSÃO S.A.

Listed Company

CNPJ 06.981.176/0001-58

NIRE 31300020550

SUMMARY OF DECISIONS

At its 95th meeting, held on August 5, 2009, the Board of Directors of Cemig Geração e Transmissão S.A. (“Cemig GT”) decided:

·                  To authorize, subject to confirmation by an Extraordinary General Meeting of Shareholders:

(a)                                  reduction of the Company’s stockholding interest in Terna Participações S.A. (“Terna”), to a minimum level of 50% less 1 (one) of the common shares, and 100% of the preferred shares, through a partnership to be constituted with Fundo de Investimentos em Participação (FIP) Coliseu, if it becomes possible for all the units of this FIP (Equity Investment Fund) to be subscribed; and,

(b)                                 granting by Cemig GT to that Equity Investment Fund of the right to sell the whole of its stockholdings in Terna to the Company (Cemig GT).

·                  To call an Extraordinary General Meeting of Shareholders to decide on the above subject, to be held on August 26, 2009, at 4 p.m., at Cemig GT’s head office.

·                  To authorize, after the ratification by the Extraordinary General Meeting of Shareholders of the above decision by the Board of Directors, assignment to Transmissora do Atlântico de Energia Elétrica S.A. (Taesa) of the Share Purchase Agreement signed between Cemig GT and Terna Rete Elettrica Nazionale, together with all the contracts and commitments assumed by Cemig GT with the advisors who worked during the process of due diligence and formatting of the acquisition of Terna.

·                  To establish that Cemig GT shall maintain a stockholding of 49% of Taesa’s common shares, in association with FIP Coliseu which will hold the remaining 51%.

·                  To establish that the association between Cemig GT and FIP Coliseu shall be governed by a Commitment Undertaking, a Shareholders’ Agreement and Bylaws, to be submitted to decision by the Board of Directors after conclusion of the negotiation of these documents between the parties.

·      To authorize increase in the registered capital of Taesa up to R$ 3,538,252,194.00 (three billion five hundred and thirty eight million two hundred and fifty two thousand one hundred and ninety four Reais).

·                  To authorize the representative of Cemig GT, in the Board of Directors and in the Extraordinary General Meeting of Shareholders of Taesa that decides on the said capital increase, and on the consequent alteration of the Bylaws to reflect this increase, to vote in favor of both measures.

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

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

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·                  To approve a revision of the Pipoca Small Hydro Plant Project.

·                  To authorize an increase in the registered capital of Hidrelétrica Pipoca S.A. to R$ 45,183,988.00 (forty five million one hundred and eighty three thousand nine hundred and eighty eight Reais), in currency of April 2007.

·                  To authorize that representatives of Cemig GT in the Extraordinary General Meeting of Hidrelétrica Pipoca S.A. in relation to the increase in the registered capital referred to above, should vote in favor of subscription of the shares, consequent alteration of the Bylaws, signing with Banco do Brasil S.A. and Banco Itaú BBA S.A. of the BNDES Onlending Financing Contract with the BNDES; and authorization to the Company’s Management to carry out all the acts necessary to the implementation and formalization of the said financing contract.

·                  To authorize signing of the following contractual instruments: the BNDES Onlending Contract referred to above; Stockholder Support Agreement; Share Pledge Agreement; Instrument of Obligation to Sell Electricity; Agreement for Fiduciary Assignment of Rights, Accounts and Other Matters; and Contract for Issuance of Guarantee Insurance Policy and Endorsement.

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COMPANHIA ENERGÉTICA DE MINAS GERAIS – CEMIG

LISTED COMPANY

CNPJ 17.155.730/0001-64

MARKET ANNOUNCEMENT

Cemig (Companhia Energética de Minas Gerais), a listed company with share securities traded on the stock exchanges of São Paulo, New York and Madrid, in accordance with its commitment to implement best corporate governance practices, and CVM Instruction 358 of January 3, 2002, as amended, hereby informs the public, the CVM and the São Paulo Stock Exchange that:

·                  On August 5, 2009 Cemig’s Board of Directors approved, as an alternative to acquisition of all of the shares of Terna Participações S.A. (“Terna”) held by Terna Rete Elettrica Nazionale S.p.A (“Terna S.p.A”), announced in the Material Announcement of April 23, 2009, specified as optional under the Share Purchase Agreement signed on that date between Cemig GT and Terna S.p.A., the possibility of reduction of the final stockholding interest to be held by Cemig Geração e Transmissão S.A. (“Cemig GT”) in Terna, in that acquisition, to a minimum level of 50% less 1 (one) of the common shares in Terna, and a minimum level of none of the preferred shares in Terna, through a partnership to be constituted with Fundo de Investimentos em Participação (FIP) Coliseu, if it becomes possible for all the units of this FIP (Equity Investment Fund) necessary for the said acquisition, to be subscribed.

Implementation of this alternative is conditional upon its ratification by the General Meeting of Shareholders to be called for this purpose, and upon successful conclusion of negotiation of the partnership with FIP Coliseu.

Further details are given in the Summaries of Decisions of the Meetings of the Board of Directors of Cemig and Cemig GT held today, sent to the CVM on today’s date.

Belo Horizonte, August 5, 2009.

Luiz Fernando Rolla

Chief Officer for Finance, Investor Relations and Control of Holdings

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

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

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Oekom Research rates Cemig sustainability leader

Research organization awards Cemig status of “Prime”

On August 5, 2009 Cemig was awarded the status of Prime (B–) by Oekom Research, the sustainability rating agency based in Germany. Oekom is one of the world’s principal investment rating agencies focused on corporate sustainability, with more than 10 years’ experience.

With the Prime rating, Cemig is qualified to receive investments from institutions that take into account the Oekom criteria, currently representing €90 billion. Cemig is the only company in the Brazilian utilities sector rated Prime by Oekom: the category includes providers of electricity, gas distribution, water and other public utility services.

Oekom evaluates companies annually, assessing their levels of responsibility in relation to social, cultural and environmental sustainability, taking into account the public information available in annual reports and websites that reflect the company’s activity.

Based on a group of 500 indicators, approximately 100 companies are selected, in a wide range of sectors. The result of this evaluation is compared with a sustainability matrix that is specific for each industrial sector. The company’s rating in its sector is then obtained based on the social and environmental indicators. A process of weighting of these results then gives the company’s rating.

Oekom grants the status of Prime to companies that are considered world leaders in their industrial sectors, and which meet specific standards of sustainability.

In Cemig’s case, the rating obtained is “B–”, classifying it as Prime, that is to say, as one of the leaders in the utilities sector worldwide.

Further information on Oekom Research can be obtained on its Internet site: http://www.oekom-research.com

Cemig Group   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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COMPANHIA ENERGÉTICA DE MINAS GERAIS – CEMIG

LISTED COMPANY – CNPJ 17.155.730/0001-64

REPLY

TO CVM LETTER SEP/GEA-3/N°447/09, of August 3, 2009

Question asked by the CVM

Requests information in relation to the acquisition of Terna Participações S.A. by Cemig Geração e Transmissão S.A., approved at the Extraordinary General Meeting of Stockholders of Cia. Energética de Minas Gerais — Cemig on May 28, 2009.

Reply by CEMIG

Dear Sirs:

In reply to your request, stated in Official Letter CVM/SEP/GEA-3/N°447/09, for Cemig to state whether the acquisition of Terna Participações S.A will cause stockholders of Cia. Energética de Minas Gerais — Cemig to have the right to withdraw, under Article 256 of Law 6404/76, we inform you that, in accordance with Item 8 (attached) of the Opinion prepared by Hirashima & Associados Ltda., the acquisition of Terna Participações S.A will not cause the stockholders of Cia. Energética de Minas Gerais – Cemig to have the right to withdraw.

Belo Horizonte, August 5, 2009.

Yours,

Luiz Fernando Rolla

Chief Officer for Finance, Investor Relations and Control of Holdings

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

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

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Item 8 of the Opinion

“Checking of the need for the acquisition of Terna Participações S.A. to be approved by the General Meeting of Stockholders of Cemig under Article 256 of Law 6404/76.”

“8. CONCLUSION (§2º OF ARTICLE 256)

It having been decided that the acquisition of Terna is a material investment for Cemig, the objective becomes that of determining whether the purchase price of the shares exceeds 1.5 times the largest of the three amounts stated in Subclauses a, b and c of Sub-item II of Article 256, for the purposes of determining stockholders’ right to withdraw.

For our analysis we will use the index of net profit per share of R$ 13.28, which is the largest value resulting from the three methods referred to above.

Using the value of the offer, R$ 13.43 per share, and the net profit of R$ 13.28 per share, gives a ratio of 1.01 between the offer price and net profit, lower than the maximum ratio of 1.5 times. Hence there is no right for dissident shareholders to withdraw.

From the above, we conclude that the transaction of purchase of Terna requires approval by the General Meeting of Stockholders of Cemig, since Article 256 of Law 6404/76 states the need for compliance with at least one of the above requirements, which is met by the criterion of material investment (sub-item I).”

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COMPANHIA ENERGÉTICA DE MINAS GERAIS — CEMIG

Listed Company
CNPJ 17.155.730/0001-64
NIRE 31300040127

SUMMARY OF DECISIONS

At its 464th meeting, held on August 13, 2009, the Board of Directors of Companhia Energética de Minas Gerais decided the following:

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

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

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CEMIG GERAÇÃO E TRANSMISSÃO S.A.

Listed Company
CNPJ 06.981.176/0001-58
NIRE 31300020550

SUMMARY OF DECISIONS

At its 96th meeting, held on August 13, 2009, the Board of Directors of Cemig Geração e Transmissão S.A. (“Cemig GT”) decided:

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

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

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CEMIG DISTRIBUIÇÃO S.A.

Listed company
CNPJ 06.981.180/0001-16

Summary of principal decisions

At its 90th meeting, held on August 13, 2009, the Board of Directors of Cemig Distribuição S.A. approved the following matters:

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

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

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12            “Second Quarter 2009 Earnings Release — Companhia Energética de Minas Gerais – CEMIG

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EARNINGS RELEASE

2Q09

Cemig H

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Cemig’s CEO, Djalma Bastos de Morais, comments on the second quarter results:

“Our exceptional results this quarter reflect the success of our Long-term Strategic Plan, and the strategy derived from it — which, by focusing on the long term, enable Cemig to produce growing results, in spite of a challenging situation in the world economy.

Cemig is overcoming the crisis, with better results and strong fundamentals, guaranteeing the bases for its projects for expansion, including acquisitions. We have successfully concluded two transactions — with TBE and Terna — which as well as adding value to the Company’s business, position Cemig as the leading company in the Brazilian electricity sector.

This comfortable situation is the result of a conjunction of strategies — including our policy of maintaining a balanced portfolio of businesses, our financial discipline, and our strategy for sales of electricity — which succeeded in mitigating the impact of the economic slowdown. We continue to do our “homework”, growing in all sectors in a balanced fashion, and with focus on operational excellence.

Finally, the results presented show that we are on the right path, and that the decisions that we have taken in recent years are constantly adding value to our businesses, making Cemig every day a stronger and more solid company, with efficient business management”.

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Cemig’s Chief Officer for Finance, Investor Relations and Control of Holdings, Luiz Fernando Rolla, makes these comments:

“In the second quarter our company continued to provide consistent and robust cash flow, as a result of our operations, which seek to add value to our businesses.

Our adjusted Ebitda in the quarter is R$ 1.07 billion, with adjusted Ebitda margin of 38%, showing the positive effect of our policy of maintaining high levels of operational efficiency — the excellence of which is evidenced by our net profit, which when adjusted for non-recurring effects totaled R$ 545 million in the second quarter of this year, 16% more than in the second quarter of 2008.

This new level of cash flow is in line with the figures estimated in our financial projections and in our Strategic Plan, and reflects the correctness of our strategy of growth via acquisitions and new projects, within the process of consolidation of the sector. Cemig GT’s sales performance boosted the consolidated results, and the non-recurring impact of the investment in the PDV Voluntary Retirement Program was mitigated by posting of the transmission revenues relating to previous periods.

Thus, the impact on our results of the non-recurring effects recorded in this quarter is mitigated by the portfolio of businesses, and the net outcome is adjusted net revenue 7% higher year-on-year — since the Cemig Group is made up of 49 companies and 10 consortia, with operations that have synergy

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and are increasingly profitable, in a position of lower risk, and long-term growth in its results.

Our solid cash position of R$ 2.2 billion makes execution of our Strategic plan possible, guaranteeing our dividend policy and debt management, and the execution of the planned investments, including those associated with acquisition opportunities.

The excellent results that we are presenting today show that we continue to add value, in a continuous and sustainable manner, for all our stockholders and other stakeholders.

The rest of this release gives the highlights of our third quarter financial figures.”

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(R$ ’000, except where otherwise stated)

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— Economic summary

* Includes figures for Light S.A.

— Non-recurring effects

This table shows the non-recurring effects that impacted the consolidated result in the second quarter of 2009.

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Adjusted net profit — CEMIG, CONSOLIDATED

From this point onwards the financial data will be presented without any adjustment for non-recurring effects

— Consolidated electricity market

Sales to final consumers

This table shows the breakdown of our sales to final consumers and YoY changes from 2Q08 to 2Q09:

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— Electricity market: Distribution

Cemig D

Cemig D’s sales by consumer category:

Electricity sales — Cemig D

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— Electricity market: Generation

Cemig GT

Breakdown of Cemig GT’s sales by volume:

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— Revenue from supply of electricity

Revenue from supply of electricity in 2Q09 was R$ 3,670,692, 10.37% more than in 2Q08 (R$ 3,325,747).

(*) Information in MWH not reviewed by external auditors.

Main factors affecting revenue in 2Q09:

·                  Tariff adjustment with average impact on consumer tariffs of 4.69%, starting from April 8, 2009.

·                  Reduction in the tariff of Cemig D, with average impact across all consumer tariffs of a reduction of 12.08%, from April 8, 2008.

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·             Volume of energy invoiced to final consumers 5.5% lower (this excludes Cemig’s own internal consumption).

Supply to other concession holders

Revenues from energy sold to other concession holders totaled R$ 456,680 in 2Q09, 77.73% more than in 2Q08 (R$ 256,952). This is mainly due to the volume of energy sold to other concession holders under ‘bilateral contracts’ being 23.65% higher, due to new contracts made at auctions of electricity to distributors, in which the MWh was sold for tariffs varying from R$ 125 to R$ 145.77.

Revenue for use of the network

This revenue is from the TUSD, charged to Free Consumers, on energy sold, and also revenue for use of Cemig GT’s basic transmission grid. It was 17.27% higher in 2Q09, at R$ 624,195, than in 2Q08 (R$ 532,266). The difference is mainly due to the accounting, in June 2009, of annual permitted revenue (RAP) from previous periods, totaling R$ 158,090, as a result of the Review of the Transmission Tariff being backdated over the period from July 1, 2005 to June 2009.

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— EBITDA

Cemig’s Ebitda in the second quarter of 2009 was 5.66% higher than in 2Q08. Adjusted for the non-recurring items, it was 4.96% higher.

Due to the announcement of the Transmission Tariff Review for Cemig GT, Aneel decided on repositioning of the Company’s Annual Permitted Transmission Revenue (RAP) at 5.35%, in the financial amount of R$ 158,090, arising from the effect of the repositioning being backdated to 2005.

In spite of operational costs and expenses (excluding depreciation and amortization) being 17.86% higher, Ebitda was 5.66% higher in 2Q09 than in 2Q08. This was due to the good performance in sales, with a positive impact of 13.31% on net operational revenue. The high increase in operational costs and expenses had a negative

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impact on Ebitda margin, which was 37.31% in 2Q08, but 34.75% in 2Q09.

— Net income

In the second quarter of 2009 (2Q09), Cemig reported net income of R$ 523,794, 17.50% less than the net income of R$ 634,872 reported for the second quarter of 2008 (2Q08). This was basically due to operational costs and expenses 16.36% higher, and the variation in Financial revenue (expenses), partially offset by Net operational revenue 13.31% higher. Cemig posted net financial expenses of R$ 33,207 in 2Q09, compared with net financial revenue of R$ 238,207 in 2Q08.

The higher operational costs and expenses basically reflect cost of electricity bought for resale 15.36% higher, and personnel expenses 53.06% higher, as a result of the cost of the PDV Temporary Voluntary Retirement Program, which totaled R$ 191,184 — being posted in the second quarter of 2009. Please refer to additional comments in the specific items of this report.

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— Non-controllable costs

Differences between the sum of non-controllable costs (known as “CVA”), used as a reference in calculating the tariff adjustment, and disbursements actually made, are offset in subsequent tariff adjustments. They are recorded in Assets and Liabilities. Due to a change in Aneel’s plan of accounts, some items were transferred to the item “Deductions from operational revenues”. For more information, please see Explanatory Notes 2 and 7 to the Quarterly Information.

— Deductions from operational revenues

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Main year-on-year variations in the deductions from revenue:

The Fuel Consumption Account — CCC

The deduction from revenue for the CCC was R$ 152,049 in 2Q09, 37.90% more than in 2Q08 (R$ 110,258). This refers to the operational costs of the thermal plants in the Brazilian grid and isolated systems, divided up between electricity concession holders by an Aneel Resolution. This is a non-controllable cost. The amount posted for electricity distribution services is the amount passed through to the tariff. For the amount posted in relation to electricity transmission services the company merely passes through the charge, since the CCC is charged to Free Consumers on the invoice for the use of the basic grid, and passed on to Eletrobrás.

Energy Development Account — CDE

The deduction from revenue for the CDE was R$ 101,959 in 2Q09, compared to R$ 99,314 in 2Q08, an increase of 2.66%. This is a non-controllable cost. The amount posted for electricity distribution services corresponds to the amount passed through to the tariff. For the amount posted in relation to electricity transmission services the company merely passes through the charge, since the CCC is charged to Free Consumers on the invoice for the use of the grid, and passed onto Eletrobrás.

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The other deductions from revenue are of taxes calculated as a percentage of billing, and their variations thus substantially arise from the changes in revenue.

— Operational costs and expenses (excluding Financial revenue (expenses))

Operational costs and expenses (excluding Financial revenue (expenses)) totaled R$ 2,112,731 in 2Q09, 17.86% more than in 2Q08 (R$ 1,816,571). This is mainly due to the increases in Personnel costs and Electricity bought for resale, partially offset by lower Operational provisions, Raw materials and Post-employment obligations.

The main year-on-year variations in these expenses are:

Personnel expenses

Personnel expenses totaled R$ 448,231 in 2Q09, 52.72% more than in 2Q08 (R$ 293,499). This reflects the salary increase of 7.26% given to employees in November 2008, and the provision of R$ 191,184 for the PDV Permanent Voluntary Retirement Program, posted in 2Q09.

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Electricity bought for resale

The expense on this account in 2Q09 was R$ 838,265, 15.36% more than the expense of R$ 726,657 in 2Q08. This is a non-controllable cost: the expense recorded in the income statement is the amount actually passed through to the tariff. Further information is given in Explanatory Note 28 to the Consolidated Quarterly Information.

Post-employment obligations

The expense on post-employment obligations in 2Q09 totaled R$ 34,515, 45.94% more than in 2Q08 (R$ 63,844). These expenses basically represent the interest applicable to Cemig’s actuarial obligations, net of the investment yield expected from the assets of the plans, estimated by an external actuary. The lower expense in 2009 basically reflects the adjustment made to the actuarial assumptions in December 2008, which resulted in a reduction of the Company’s net obligations.

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Operational provisions

Operational provisions were constituted as revenue (due to reversal) totaling R$ 6,950 in 2Q09, compared with an expense of R$ 27,344 in 2Q08. The reduction is due to the reversal, in June 2009, of a provision of R$ 26,804 for civil lawsuits on tariff increases, due to finalization of those cases.

— Financial revenues (expenses)

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The Financial revenue (expenses) line was significantly different between the two periods. The main factors are:

·      Revenue from arrears penalty payments for late payment of electricity bills 29.93% lower in 2Q09, at R$ 33,502, compared to R$ 47,812 in 2Q08. This basically reflects payment of accounts received from large industrial consumers related to previous years, the principal amounts of which were considerably less than the added amounts related to financial charges applied.

·      The Company recognized a financial gain in the second quarter of 2008, in the amount of R$ 82,702, for the financial compensation to be paid by the stockholders of RME for Cemig’s waiver of exercise of an option to buy the rights of the partners of RME over the generation assets of Light for a previously agreed amount. For more details, see Explanatory Note 29.

·      Revenue from adjustment to present value in 2008, totaling R$ 62,003, applied to the balance of some financings, debentures and obligations payable for concessions for consideration, in compliance with Law 11,638/07.

·      Revenue from monetary variation on the General Agreement for the Electricity Sector 59.35% lower — at R$ 11,242 in 2009, vs. R$ 27,658 in 2008 — reflecting the lower value of the regulatory assets in 2009, due to the principal regulatory assets previously

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posted (RTE and Deferred Tariff Adjustment) having been amortized.

·      Revenue reported in 2008 of R$ 108,090 from the final court decision in favor of Light in an action challenging the application of the PIS and Cofins taxes to financial revenue.

·      Costs of loans and financings 16.18% lower, due to amortizations of debt in 2008 and the lower variation in the CDI rate (the main indexor of contracts) in 2009.

— Income tax and Social Contribution tax

Cemig’s expenses on income tax and the Social Contribution tax in 2Q09 totaled R$ 245,493, on income of R$ 828,541 before tax effects, a percentage of 29.63%. The Company’s expenses on income tax and the Social Contribution tax in 2Q08 were R$ 343,040 on income of R$ 993,648 before tax effects, a percentage of 34.52%.

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— Disclaimer

Some statements and assumptions in this document are projections based on the viewpoint and assumptions of management, and involve risks and uncertainties both known and unknown. Future outcomes may differ materially from those expressed or implicit in such statements.

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CEMIG GT — Tables I to III

TABLE I

Operating Revenues (consolidated) - CEMIG GT
Values in million of Reais

TABLE II

Operating Expenses (consolidated) - CEMIG GT
Values in millions of reais