Corporate Presentation April 2013

Light Holdings 2

Rankings Among the largest players in Brazil INTEGRATED² Net Revenues 2012 – R$ Billion GENERATION PRIVATE-OWNED COMPANIES² Installed Hydro-generation Capacity (MW) – ,626 24,714 22,737 21,467 20,054 15, ,560 2,658 2,241 2,219 2, DISTRIBUTION¹ Energy Consumption in Concession Area (GWh) – Source: Captive market 2 – Source: Companies reports * Considers the 9 MW of Renova’s SHPs * 3

Shareholders Structure 11 Board members: 8 from the controlling group, 2 independents e 1 employees nominated A qualifying quorum of 7 members to approve relevant proposals such as: M&A and dividend policy 4

Corporate Governance General Assembly Fiscal Council Board of Directors Auditors Committee Auditors Committee Governance and Sustainability Committee Human Resources Committee Finances Committee Management Committee Chief Executive Officer Chief HR Officer Chief Business Officer Corporate Management Officer Chief Legal Officer Chief Financial and Investor Relations Officer Chief Distribution Officer Chief Energy Officer João B. Zolini Carneiro José Humberto Castro Evandro L. Vasconcelos Andreia Ribeiro Junqueira Fernando Antônio F.Reis Paulo Carvalho FilhoEvandro L. Vasconcelos* Paulo Roberto R. Pinto Chief Communications Officer Luiz Otavio Ziza Valadares LGSXY ADR-OTC Interim* 5

Distribution Business  4.1 million clients (serving 10 million people)  Energy sales (2012) – 23,384 GWh  70% of the consumption of Rio de Janeiro state (Brazil’s 2nd GDP)  4.1 million clients (serving 10 million people)  Energy sales (2012) – 23,384 GWh  70% of the consumption of Rio de Janeiro state (Brazil’s 2nd GDP) 6 th largest energy distribution company in Brazil (2011) 6

+2.0% 22,932 22, ºC 24.3ºC ,492 23, ºC 25.0ºC +2.9% Note: To preserve comparability in the market approved by Aneel in the tariff adjustment process, the billed energy of the free customers Valesul, CSN and CSA were excluded in view of these customers’ planned migration to the Basic Network. TOTAL MARKET (GWh) ¹ Energy Consumption Distribution – Year Industrial 7% Free 14% Others 15% Commercial 29% Residential 35% With the consumption no longer billed by the change in criteria, the total energy consumption increase in the concession area would be 3.0% over

Total Market FREE CAPTIVE RESIDENTIALINDUSTRIALCOMMERCIAL OTHERS TOTAL % 19,877 20,054 22,932 3,056 3,330 23, % 3,417 3,521 3, , % 6,310 6,856 6, ,599 1,731 1,528 3,944 2,213 2,396 3, % 8,418 8,149 ELECTRICITY CONSUMPTION (GWh) TOTAL MARKET – YEAR % 8

Prospects for State of Rio Investments of R$ billion in the State of Rio de Janeiro¹ Oil R$ bn 50.9% Tourism R$ 1.8 bn 0.9% Others R$ 1.9 bn 0.9% Olimpic Facilities R$ 8.6 bn 4.1% Infrastructure R$ 51.0 bn 24.1% Transformation Industry R$ 40.5 bn 19.1% Period ¹Source: Firjan (Industry Federation of Rio de Janeiro) Events Schedule Confederations Cup World Youth Day World Cup Olympics Paralympics Jun, 15 to 30/2013 Jul, 23 to 28/2013 Jun, 12 to Jul, 13/2014 Aug, 5 to 21/2016 Sep, 7 to 18/2016 9

Economic activity leading to more demand Rio de Janeiro  Maracanã (ND)  Porto Maravilha (ND)  Morar Carioca (ND)  Aeroporto Tom Jobim (5MW)  Estaleiro Inhauma (ND)  Atento (2MW)  Expansão Nova América (4MW)  Expansão Norteshopping (3MW)  Petrobras (15MW)  CSN (100MW)  Gerdau (30MW)  Usiminas (20MW)  LLX (40MW)  Base Naval(25MW)  Hotel Comfort (3MW)  Gerdau (90MW)  Shop. Campo Grande (3MW)  Rolls Royce (3MW)  Nestlé (3MW)  Bio Manguinhos (ND)  Hermes (3MW)  Votorantin (ND)  Ongoing (ND)  Bunge (ND)  AMBEV (2MW)  GE (6MW)  Shop. Metropolitano (10MW)  RHI (5MW)  Lavazza (3MW)  Ajebras (5MW)  Reluz (ND)  Embelleze (5MW)  MRS (ND)  AMBEV (ND)  NeoBus (10MW)  Coquepar (42MW)  Procter & Gamble (10MW)  Alpargatas (ND) The State of Rio de Janeiro will attract $ 250 billion as investments by 2016 ¹ ¹Source: Associação Brasileira de Municípios – ABM website.  Centro Tecnológico Fundão (ND)  Shopping Village Mall (7MW)  Edifício Tishman Speyer (5MW)  Expansão Via Parque (2MW)  Casa Granado (3.5MW)  Hospital São Lucas (4MW)  Metrô Ipanema (8MW)  Flow Serve (11MW)  Alog Data Center (12MW) 10

Collection rate by segment 102.5% YEAR 97.4% 98.0% 96.4% 94.3% 101.0% 98.8% 102.6% TotalRetailLarge ClientsPublic Sector 11

Losses 12 months 33.3 % Technical losses GWh % Non-technical losses/ LV Market % Non-technical losses / LV Market - Regulatory Non-technical losses GWh Reflects exclusion of long term delinquent customers from the billing system, according to Resolution 414 by Aneel. Sep/11Dec/11Jun/12Mar/12 Sep/12 Sep/10Dec/10Jun/11Mar/11Jun/10 Dec/ % 40.7% 41.2% 40.4% 43.1% 45.4% 42.4% 42.1% 41.8% 41.6% 41.3% 5,316 2,328 2,349 5,229 7,5827,627 7,665 2,335 5,247 5,615 2,432 8,047 5,457 2,381 7,838 5,330 2,529 2,214 6,097 2,197 5,352 5,312 2,231 5,278 2,215 5,326 2,293 7,549 8,626 7,544 7,543 7,493 7,619 37% Risky Area 63% Non-Risky Area 12

New Technology Program  Technology used in regions in which conventional measures are not effective  Areas that present high levels of non-technical losses Light aims to reduce losses through investments in new technologies, integration of operational activities, increase of public awareness and institutional partnerships with interested agents. Grid shielding projects Actual grid Shielded grid Control room 3 m 9 m Low voltage Mechanical Meter Medium voltage Display Low voltage Medium voltage Centralized meter 13

New Technology Program  Monitoring, reading, cutting and reconnection of customers telemetry– MCC (Measuring Center Centralized)  Prioritization in areas of high losses and aggressiveness to the network  Technology hindering inappropriate interference in networks Meters Installed (Thousands) (ITRON) (LANDIS GYR. CAM and ELSTER) CENTRALIZED INDIVIDUAL

New Technology Results Individual Losses (before): 26% Losses (current): 7% 15

New Technology Results Losses (before): 48% Losses (current): 14% Centralized 16

Zero Losses Area Area: Nova Cidade Neighborhood - Nilópolis FEATURESLVMVTOTAL Clients10,083310,086 Network (KM.) Transformer (QTY.)107 Power (MVA)12.9 RESULTS Collection (R$ MN) Non-technical losses41.7%¹7.4%² ¹ Nov/10 ² Dec/11 17

Losses Reduction - Business Case An example 300 kWh 100 kWh REAL CONSUMPTION BILLED CONSUMPTION NEW METER INSTALLATION 200 kWh LOST ENERGY ENERGY SAVED 100 kWh BILLED CONSUMPTION INCREASE 100 kWh OTHER EFFECTS (BY-PRODUCTS): CAPEX GOES TO THE RAB BAD DEBT PROVISION REDUCTION OPERATIONAL COSTS REDUCTION 18

Transformation of risky areas 19

Tabaj. e Cabr. Borel e Casabranca Transformation of risky areas Batan Cidade de Deus S. Marta Mang. e Babil. Alemão Formiga Andaraí Macacos Salgueiro Cantag. e Pavãoz thousand clients inside pacified communities with new meters and network Santa MartaBeforeAfter Clients731,605 Losses90%6% Delinquency70%2% 20

GENERATION BUSINESS

Installed Capacity 868 MW HPP Santa Branca 56 MW HPP Ilha dos Pombos 187 MW HPP Fontes Nova 132 MW HPP Underground Nilo Peçanha MW HPP Pereira Passos 100 MW SP RJ HPP Santa Branca Paraiba do Sul River HPP Ilha dos Pombos 100% Lajes Complex 51% SHP Paracambi 13 MW 22

Re-pricing of existing energy Contracted Energy (Regulated)² Contracted Energy (Free) Hedge Available Energy Average sale price to free market (R$/MWh)¹ Conventional Energy Balance Assured energy (MW average) ¹Database january ² Average price to Regulated Market (dec/11): R$ 75/MWh 23

Generation Expansion SHP Lajes  Installed Capacity: 17 MW  The construction is to be started by the 2nd half of  Operational Start: 2nd half of 2014; Installation License already issued. HPP Itaocara  Installed Capacity: 151 MW  The construction is to be started by the end of  Commercial Operational Start: 2nd half of  Preliminary License already issued. SP RJ Paraiba do Sul River Lajes Complex 24

Renova (1)Share of RR Participações SA out of the control block By the middle of 2011, Light signed an investment agreement of $360 million and the PPA (Power Purchased Agreement) of 400MW of installed capacity to have 25.9% stake at Renova. This year BNDESPAR is becoming a shareholder after a capital increase in Renova. Light keeps a 21.99% stake. Light 21.99% RR Participações 21.99% Controlling Shareholders 64.6% CS Light 32.3% CS 0% PS RR Participações 32.3% CS 0% PS  Shareholder Structure December 2012  Location Wind Farms Inventory (SHPs) Basic Projects (SHPs)  Auctions Performance  The biggest winner in the Reserver Energy Auction of 2009  The biggest winner in the Reserver Energy Auction of 2010  2nd largest winner in the Auction A-3 of 2011  Company’s Portfolio  41.8 MW of SHPs in operation under the PROINFA contract  MW of wind energy under construction to start the operation in Jul/2012  MW of contracted wind energy to be delivered between 2013 until 2017  Pipeline 5.8 GW under development  Projects in the same area providing synergies and scale gains 25

Renova - Contracts Contract Sites Term (years) Index Operation Startup (Estimated) Installed Capacity (MW) Average Load Factor (%) Estimated Energy (MW average) CAPEX/MW installed (R$ MN) Loan Tariff (R$/MW) SHPP320IGPM In operation since BNB Contracted LER IPCA In operation since Jul (*)3.996 BNDES Contracted LER IPCA Sep – (*)3.878 BNDES Eligibility Y years and 10 months IPCA Mar (*)3.245 BNDES Eligibility Y IPCA Jan – PPA Light 110 (E)20IPCA Sep (E)100 (E) PPA Light 210 (E)20IPCA Sep (E)100 (E)

Belo Monte - Overview 51.0% CS 0.0% PS 49.0% CS 100.0% PS Amazônia Energia Participações S.A Norte Energia S.A (Belo Monte) 9.77% 74.5% of total stock 25.5% of total stock  Technical data on the concession: Concession period – 35 years End of concession – August 25, 2045  Technical data on the project: Installed capacity – 11,233 MW –Main engine room – 11,000 MW –Auxiliary engine room – 233 MW Assured Energy (Average MW) – 4,571 MW Reservoir – 516 Km² Flooded area/generation ratio of 0.05 Km²/MW 5,000 families affected Estimated project cost (April 2010) – R$ 25.8 billion  Other Informations: Amazônia Energia will own 9.77% of the enterprise. –Construction works estimated to take 9 years. –Transaction does not affect Light ‘s dividend flow BNDES loan ensures leverage at low cost on favorable terms. – Tender 30 years, fixed installments. 85% of items financiable. PSI line. Amazônia Energia’s equity in the project estimated at R$ 150 million (Apr. 2010), to be disbursed over 6 years. Expansion of generation portfolio: –Increases Light’s total generation portfolio by 280 MW Terms for sale of electricity generated already set. −Regulated Market: 70%; Free Market: 20%; Self-producers: 10%. Norte Energia S.A. – Shareholders Profile 27

Guanhães TOTAL CAPEX R$ Million PCH Dores de Guanhães Senhora do Porto JacaréFortuna IITotal Installed Capacity (MW) Assured Energy (MW average ) ANEEL Authorization11/22/200210/08/200210/29/200212/21/2001 Operation - Start upDec/13 Feb/14Oct/13 Authorization Term30 years (with renewal for 20 years) Equity Debt Light Energia Cemig GT BNDES 28

New Generation Projects Installed Capacity (MW) Installed Capacity Capacity After Expansion Investments in Renova, Belo Monte and Guanhães. In line with our strategy of growing in the generation business ¹ Considering 51% stake ² Considering 21.9% stake ³ Considering 2.5% stake % (+) Belo Monte³ (+) SHP Paracambi¹ (+) SHP Lajes¹ (+) HPP Itaocara¹ (+) Guanhães¹(+) Renova² 1, * (+) Renova² Current Capacity * 9 MW SHP + 65 MW Wind Farm (since jul/12)

RESULTS

Net Revenue Industrial 6.8% NET REVENUE (R$MN) Generation 6.3% Distribution 89.6%** NET REVENUE BY SEGMENT (2012)* Commercialization 4.1% * Eliminations not considered ** Construction revenue not considered NET REVENUE FROM DISTRIBUTION (2012) Commercial 30.1% Others (Captive) 12.6% Network Use (TUSD) (Free + Concessionaires) 9.4% Residential 41.1% Construction Revenue Revenue w/out construction revenue , , Q124Q , , % , , , , % 12.9% 31

Operating Costs and Expenses Manageable (distribution): R$ 1,103.4 (18.5%) Generation and Commercialization: R$ (7.5%) Non manageable (distribution): R$ 4,410.8 (74.0%) * Eliminations not considered ** Construction revenue not considered DISTRIBUTION MANAGEABLE COSTS (R$MN) COSTS (R$MN)* % 4Q12 4Q , , % R$ MN4Q114Q12Var Var. PMSO % % Provisions56, % % PCLD % % Contingencies % % Depreciation % % Other operational/ revenues expenses 1.0(357.5)-6.0(355.0)- Total %1,258.91, % 32

EBITDA CONSOLIDATED EBITDA (R$MN) EBITDA BY SEGMENT* 2012 Generation 23.0% (EBITDA Margin: 76.4%) Commercialization 1.9% (EBITDA Margin: 9.5%) Distribution 75.2% (EBITDA Margin: 17.4%) *Eliminations not considered % 4Q114Q , , % 33

EBITDA 87 1,325 1, (706) (75) 381 1, ,782 EBITDA – 2011 / 2012 (R$ MN) % % (175) EBITDA 2011 EBITDA 2012 Net Revenue Non- Managable Costs Managable Costs (PMSO) Provisions Regulatory Assets and Liabilities Adjusted EBITDA 2011 Adjusted EBITDA 2012 Other operational/ revenues 34

Net Income ADJUESTED NET INCOME 2011 / 2012 (R$ MN) % (85) (57) % EBITDAFinancial Result TaxesOthers Regulatory Assets and Liabilities Adjusted Net Income 2011 Adjusted Net Income

Dividends *Based on Net Income of the year. before IFRS adjustments * 36

Indebtedness leverage ¹ Net debt = total debt (excludes pension fund liabilities) – cash Net DebtNet Debt/ EBITDA Investment Grade (brA) 1, , , , Rating (brA + ) Rating (Aa2.br) Rating (AA-(bra)) Dec/ ,273 Net Debt¹ (R$ MM) and Net Debt / EBITDA 37

Indebtedness Average Term: 4,2 years AMORTIZATION SCHEDULE* (R$ MN) Nominal Cost Real Cost Dec/12Dec/11 3, ,273.1 NET DEBT *ConsideringHedge * Principal only COST OF DEBT US$/Euro 0.8% CDI/Selic 72.1% TJLP 25.1% % 8.21% 5.30% 9.84% 4.87% 11.08% 4.25% 11.03% 2012 Net Debt / EBITDA Others 2.0% , After 2017 The pre payment of R$ 375 million in October reduced the cost of debt and extended the amortization schedule 38

Investments CAPEX (R$ MN) CAPEX BREAKDOWN (R$ MN) Generation Projects 1.9 Quality Improvement Generation Maintenance 23.7 Others Develop. of Distribution System Losses Combat Investments in Electric Assets (Distribution) Commerc./ Energy Eficiency

Why invest in Light? Major upcoming events Integration of favelas Pro-business environment New plants investments Expansion of the existing ones Market growth Major upcoming events Integration of favelas Pro-business environment New plants investments Expansion of the existing ones Market growth Economic Transformation in the Concession Area Progress in the Technology Program New network and meters in the pacified favelas Smart metering development “Zero Losses Area” Program Progress in the Technology Program New network and meters in the pacified favelas Smart metering development “Zero Losses Area” Program Energy Losses Reduction Energy Losses Reduction Investment in Renova. Belo Monte and Guanhães (total of 477 MW) SHP Lajes under construction. HPP Itaocara Investment in Renova. Belo Monte and Guanhães (total of 477 MW) SHP Lajes under construction. HPP Itaocara Growth in the Generation Business New PPAs starting in 2013 and 2014 Revenues increase with no aditional costs. Very active trading subsidiary New PPAs starting in 2013 and 2014 Revenues increase with no aditional costs. Very active trading subsidiary Repricing of Existing Energy Listed in “Novo Mercado” of Bovespa; Board Committees very active Included in the Sustainability Index (ISE) of Bovespa for the sixth year. Listed in “Novo Mercado” of Bovespa; Board Committees very active Included in the Sustainability Index (ISE) of Bovespa for the sixth year. Best-in-Class Corporate Governance Sound Dividend Policy: minimum 50% of net income; Average payout since 2007: 91% Sound Dividend Policy: minimum 50% of net income; Average payout since 2007: 91% Dividend track Record 40

Regulatory Framework  The Provisional Measure 579 was enacted on September 11, 2012 and thereafter converted into Law 12,783 providing for electric power concessions, reduction of sector charges and reasonable tariffs which although these have not directly affected Light, as its concessions will expire only in 2026, resulted in the following developments:  on January 24, 2013, Resolution issued by Aneel approved an average reduction of 19.63% in Light SESA’s tariffs. For residential consumers (low voltage), the reduction was 18.10%. The measure will have no impact on the company’s result or cash flow since it reflects an equal reduction in costs.  on the same date, the distribution of power plants energy quotas was ratified, which had their concession renewed:  (i) but lower to the distribution companies’ contracting needs, thus, causing an involuntary exposure, and only for Light it accounted for average 156 MW; and  (ii) made distribution companies to start sharing the hydrological risks, which before was only supported by generation companies  As of October 2012, an adverse hydrological situation was characterized in Brazil’s electricity sector, the basis of which is mainly hydric, enforcing the System National Operator to dispatch all the thermal power plants available in the system, thus significantly rising the costs of distribution companies by increasing fuel expenditures in availability agreements, increasing System Service Charges due to energy security and acquisitions on the spot market in order to answer that involuntary exposure. 41

 On March 8, 2013, the federal government issued the Decree 7,945 preventing the coverage of non-manageable costs related to thermal plant dispatch, involuntary exposure and hydrological risk not covered by the 2013 tariff, as follows:  Eletrobrás will transfer the resources of Energetic Development Accout (CDE) directly to the concessionaires on the same dates and to the same accounts as the respective monthly transfers of the Electricity Trading Chamber (CCEE) financial guarantees.  Aneel will publish the monthly dispatches with the amounts to be transferred by Eletrobrás via the CDE (energy development account).  System Service Charge (ESS) – The monthly transfer will be determined by the difference between the amounts settled in the CCEE and the tariff coverage defined in the last adjustment.  Involuntary Exposure associated with the quotas – The monthly CDE transfer will cover the difference between the difference settlement price (PLD) and the acquisition tariff of the repositioning amount recognized in Light’s last tariff adjustment.  Hydrological Risk - The net monthly amount settled in the CCEE will be transferred directly via the CDE.  The remaining energy purchase and ESS costs not covered by the decree, including fuel costs of availability contracts not included on tariffs, will continue going towards the formation of the regulatory assets and liabilities (CVA) to be determined in Light’s November/13 Tariff Revision.  The Public Hearing opened for regulating decree proposes a transfer rate until 3% of the balance of CVA, the rest will be payed "in cash" from CDE funds. Regulatory Framework 42

Important Notice This presentation may include declarations that represent forward-looking statements according to Brazilian regulations and international movable values. These declarations are based on certain assumptions and analyses made by the Company in accordance with its experience, the economic environment, market conditions and future events expected, many of which are out of the Company’s control. Important factors that can lead to significant differences between the real results and the future declarations of expectations on events or business-oriented results include the Company’s strategy, the Brazilian and international economic conditions, technology, financial strategy, developments of the public service industry, hydrological conditions, conditions of the financial market, uncertainty regarding the results of its future operations, plain, goals, expectations and intentions, among others. Because of these factors, the Company’s actual results may significantly differ from those indicated or implicit in the declarations of expectations on events or future results. The information and opinions herein do not have to be understood as recommendation to potential investors, and no investment decision must be based on the veracity, the updated or completeness of this information or opinions. None of the Company’s assessors or parts related to them or its representatives will have any responsibility for any losses that can elapse from the use or the contents of this presentation. This material includes declarations on future events submitted to risks and uncertainties, which are based on current expectations and projections on future events and trends that can affect the Company’s businesses. These declarations include projections of economic growth and demand and supply of energy, in addition to information on competitive position, regulatory environment, potential growth opportunities and other subjects. Various factors can adversely affect the estimates and assumptions on which these declarations are based on. 43

Contacts João Batista Zolini Carneiro CFO and IRO Gustavo Werneck IR Manager