Energy Co Of Minas Gerais 6-K, filed Sep 9, 2026

Energy Co Of Minas Gerais (CIG-C)

6-K 2026-09-09 For: 2026-09-30

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Added on September 09, 2026

About this 6-K

Energy Co Of Minas Gerais filed this 6-K on September 9, 2026.

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Payout	Approval Date	Date “with rights”	Date “ex-rights”	Per common/preferred share (R$)	Amount Total (R$ thousand)


Dividends	04/30/2026	04/30/2026	05/04/2026	0.118177943	338,069
IoE	12/18/2025	12/23/2025	12/26/2025	0.118401316	338,709
IoE	09/23/2025	09/29/2025	09/30/2025	0.105698051	302,368
IoE	06/17/2025	06/23/2025	06/24/2025	0.104303454	298,379
IoE	03/20/2025	03/25/2025	03/26/2025	0.094558924	270,503
TOTAL				0.541139687	1,548,028

Executive Board
Position	Name
CEO	Alexandre Ramos Peixoto
Vice President of Finance and Investor Relations	Leonardo George de Magalhães
Vice President of Legal Affairs	Sérgio Pessoa de Paula Castro
Vice President of Distribution	Ernando Antunes Braga
Vice President of Generation and Transmission	Demétrio Alexandre Ferreira
Vice President of Trade	Sérgio Lopes Cabral
Vice President of Information Technology	Luis Cláudio Correa Villani
Vice President of Institutional Relations	Marcos Montes Cordeiro

IoE
Gross amount per share	R$0.22040514318
Date “with rights” (¹)	06/23/2026
Date “ex-rights”	06/24/2026
Payment date	2 (two) equal installments: · the first by 06/30/2027 and · the second by 12/30/2027

Operating Highlights	2Q26	2Q25	YoY % Change	Q1 2026	QoQ % Change
Distributed Energy (MWh)	13,487,648	13,331,108	1.2%	13,454,458	0.2%
Total captive market	5,328,565	5,542,849	-3.9%	5,324,493	0.1%
Total transport free-market clients	6,310,760	6,283,041	0.4%	6,284,468	0.4%
DG2 and DG3 offset	296,170	164,808	79.7%	280,999	5.4%
DG1 offset	1,552,154	1,340,410	15.8%	1,564,498	-0.8%
Energy sold GT + Holding (MWh)*	10,916,837	11,243,037	-2.9%	10,653,535	2.5%
Total distributed gas volume (thousand m³)	229,845	276,986	-17.0%	244,498	-6.0%

Financial Highlights (R$ million)	2Q26	2Q25	YoY % Change	Q1 2026	QoQ % Change
Net operating revenue	11,156.2	10,786.3	3.4%	10,462.5	6.6%
PMSO**	1,352.5	1,236.0	9.4%	1,221.1	10.8%
EBITDA	2,239.3	2,059.1	8.8%	1,788.7	25.2%
Adjusted EBITDA	2,472.4	2,261.5	9.3%	1,788.2	38.3%
EBITDA Margin	20.1%	19.1%	1.0 p.p.	17.1%	3.0 p.p.
Financial result	(795.9)	(312.6)	154.6%	(338.4)	135.2%
Net Income	945.4	1,188.3	-20.4%	979.0	-3.4%
Adjusted Net Income	1,116.5	1,321.9	-15.5%	979.0	14.0%
Investments	1,805.3	1,544.0	16.9%	1,476.7	22.3%

Net Debt	2Q26	2Q25	YoY % Change	Q1 2026	QoQ % Change
Net debt	19,358.1	12,228.6	58.3%	17,844.0	8.5%
Net debt/adjusted EBITDA	2.58x	1.59x	0.99x	2.45x	0.13x

Quarter Highlights	2
Financial and Operating Indicators	3
EBITDA and Net Income per Company for the Quarter	5
Income Statement	6
Income Statement by Segment	7
Consolidated Energy Market	8
Performance by Company	9
Cemig D	9
Cemig GT/Holding	16
Gasmig	18
Consolidated Financial Performance	19
Operating Revenue	19
Operating Costs and Expenses	21
Equity Income	24
Consolidated EBITDA	25
Cemig D EBITDA	27
Cemig GT EBITDA	28
Financial Income and Expenses	29
Net Income	29
Investments	30
Capex	30
Consolidated Debt	31
Evolution of Cemig’s Credit Ratings	32
ESG – Performance Report	33
Corporate Highlights	34
Share Performance	37
Power Plants	38
Expansion in Photovoltaic Generation	39
RAP – July 2026 to June 2027 Cycle	39
Revenue and Regulatory EBITDA from Transmission	40
Supplementary Information	40
Disclaimer	41

	EBITDA (IFRS)					Adjusted EBITDA
EBITDA (IFRS) - (R$ mn)	2Q26	2Q25	YoY % Change	Q1 2026	QoQ % Change	2Q26	2Q25	YoY % Change	Q1 2026	QoQ % Change
Cemig D	1,476.8	1,241.0	19.0%	1,010.4	46.2%	1,508.3	1,245.6	21.1%	1,010.4	49.3%
Cemig GT	479.7	415.1	15.6%	575.6	-16.7%	678.6	613.2	10.7%	575.6	17.9%
Gasmig	205.9	243.5	-15.4%	192.7	6.8%	205.9	243.5	-15.4%	192.7	6.8%
Other	76.9	159.5	-51.8%	9.9	677.7%	79.6	159.2	-50.0%	9.5	741.6%
Consolidated	2,239.3	2,059.1	8.8%	1,788.7	25.2%	2,472.4	2,261.5	9.3%	1,788.2	38.3%
VNR	79.7	26.6	199.4%	65.3	22.1%	79.7	26.6	199.4%	65.3	22.1%
Equity Income	91.4	77.4	18.0%	52.3	74.6%	91.4	77.4	18.0%	52.3	74.6%
Regulatory/IFRS difference from Transco	(23.8)	295.3	-	93.7	-	(26.4)	(96.7)	-72.7%	93.7	-
Consolidated (-) VNR and equity income (+) regulatory/IFRS difference from Transco	2,044.4	2,250.3	-9.1%	1,765.7	15.8%	2,274.9	2,060.8	10.4%	1,764.7	28.9%

	Net Income (IFRS)					Adjusted Net Income
R$ million	2Q26	2Q25	YoY % Change	Q1 2026	QoQ % Change	2Q26	2Q25	YoY % Change	Q1 2026	QoQ % Change
Cemig D	483.1	550.6	-12.2%	397.7	21.5%	504.0	553.6	-9.0%	397.7	26.7%
Cemig GT	269.6	342.1	-21.2%	392.7	-31.4%	418.1	472.9	-11.6%	392.7	6.5%
Gasmig	95.9	150.8	-36.4%	100.6	-4.7%	95.9	150.8	-36.4%	100.6	-4.7%
Other	96.8	144.8	-33.1%	88.0	10.0%	98.9	145.0	-31.8%	88.0	12.3%
Consolidated	945.4	1,188.3	-20.4%	979.0	-3.4%	1,116.8	1,322.3	-15.5%	979.0	14.1%

	Electricity				Gas	Equity Income	Eliminations	Consolidated
(R$ million)	Generation	Transmission	Trading	Distribution	Gas	Equity Income	Eliminations	Consolidated
NET REVENUE	923	492	2,111	7,716	500	37	(623)	11,156
Intersegment	502	94	-	26	0	-	(623)	-
Third-party	421	398	2,111	7,689	500	37	-	11,156
ELECTRICITY AND GAS COSTS	(179)	(0)	(2,252)	(3,799)	(198)	(0)	615	(5,814)
Intersegment	(26)	(0)	(475)	(114)	-	0	615	-
Third-party	(152)	(0)	(1,777)	(3,686)	(198)	(1)	-	(5,814)
COSTS, EXPENSES, AND OTHER REVENUES	(213)	(246)	(229)	(2,722)	(125)	(78)	8	(3,604)
Personnel	(42)	(43)	(16)	(286)	(17)	(17)	-	(421)
Employee and management profit sharing	(5)	(5)	(4)	(27)	(3)	(10)	-	(53)
Post-employment obligations	(6)	(2)	(1)	(29)	-	(13)	-	(50)
Materials, third-party services, and other expenses, net	(75)	(23)	(10)	(659)	(20)	(49)	8	(828)
Intersegment	(6)	(1)	-	(1)	(0)	(0)	8	-
Third-party	(69)	(22)	(10)	(658)	(20)	(49)	-	(828)
Depreciation and amortization	(85)	(5)	(0)	(282)	(29)	(10)	-	(410)
Provisions and adjustments for operating losses	(0)	(3)	(198)	96	(3)	20	-	(88)
Infrastructure construction costs	-	(166)	-	(1,534)	(53)	-	-	(1,753)
COSTS, EXPENSES, AND OTHER REVENUES	(391)	(246)	(2,482)	(6,521)	(323)	(78)	623	(9,418)
Equity income	-	-	-	-	-	91	-	91
INCOME BEFORE FINANCIAL RESULT AND INCOME TAXES	532	246	(371)	1,195	177	50	-	1,829
Financial result	(42)	(33)	(0)	(608)	(32)	(80)	-	(796)
INCOME BEFORE INCOME TAXES	490	213	(371)	587	145	(30)	-	1,033
Income tax and social contribution	(25)	(24)	63	(104)	(49)	50	-	(88)
NET INCOME FOR THE PERIOD	466	189	(308)	483	96	20	-	945

Captive + Transport - MWh	2Q26	2Q25	YoY % Change	Q1 2026	QoQ % Change
Residential	3,256,834	3,170,399	2.7%	3,410,560	-4.5%
Industrial	5,315,913	5,483,215	-3.1%	5,281,913	0.6%
Captive market	131,038	179,077	-26.8%	123,347	6.2%
Transport	5,184,875	5,304,139	-2.2%	5,158,566	0.5%
Commercial, Services, and Other	1,506,841	1,521,024	-0.9%	1,544,105	-2.4%
Captive market	776,963	855,645	-9.2%	784,115	-0.9%
Transport	729,878	665,380	9.7%	759,990	-4.0%
Rural	692,531	778,749	-11.1%	519,590	33.3%
Captive market	653,346	745,410	-12.4%	481,742	35.6%
Transport	39,185	33,339	17.5%	37,848	3.5%
Public Services	781,396	792,114	-1.4%	773,784	1.0%
Captive market	502,687	585,327	-14.1%	516,867	-2.7%
Transport	278,709	206,788	34.8%	256,917	8.5%
Utilities	78,113	73,395	6.4%	71,147	9.8%
Transport	78,113	73,395	6.4%	71,147	9.8%
Own Consumption	7,696	6,992	10.1%	7,862	-2.1%
Total captive market	5,328,565	5,542,849	-3.9%	5,324,493	0.1%
Total energy transported for free-market clients	6,310,760	6,283,041	0.4%	6,284,468	0.4%
Total excluding DG	11,639,325	11,825,890	-1.6%	11,608,961	0.3%
DG1 Offset	1,552,154	1,340,410	15.8%	1,564,498	-0.8%
DG2 Offset	294,463	163,221	80.4%	280,206	5.1%
DG3 Offset	1,707	1,587	7.6%	793	115.2%
Total DG	1,848,324	1,505,218	22.8%	1,845,497	0.2%
Total Market including DG	13,487,648	13,331,108	1.2%	13,454,458	0.2%

Metered Market – MWh	2Q26	2Q25	YoY % Change	Q1 2026	QoQ % Change
Energy transported to discos	78,113	73,395	6.4%	71,147	9.8%
Energy transported to free-market customers	6,427,521	6,207,535	3.5%	6,189,900	3.8%
Own Cargo + DG	8,867,873	8,792,162	0.9%	8,532,690	3.9%
Captive Market Consumption	5,272,543	5,550,333	-5.0%	5,438,282	-3.0%
DG Market	1,848,324	1,505,218	22.8%	1,845,136	0.2%
Losses in Distribution Network	1,747,006	1,736,611	0.6%	1,249,272	39.8%
Total Grid Load	15,373,507	15,073,092	2.0%	14,793,736	3.9%

Number of captive customers	Jun/26	Jun/25	YoY % Change	Mar/26	QoQ % Change
Residential	8,281,118	8,072,997	2.6%	8,247,521	0.4%
Industrial	22,098	23,754	-7.0%	22,455	-1.6%
Commercial, Services, and Other	866,601	900,319	-3.7%	875,867	-1.1%
Rural	360,400	388,636	-7.3%	373,448	-3.5%
Public Sector	76,110	74,503	2.2%	75,148	1.3%
Street Lighting	8,553	7,354	16.3%	8,186	4.5%
Public Services	13,001	13,268	-2.0%	13,163	-1.2%
Own Consumption	878	830	5.8%	872	0.7%
Total captive customers	9,628,759	9,481,661	1.6%	9,616,660	0.1%

Number of free-market customers	Jun/26	Jun/25	YoY % Change	Mar/26	QoQ % Change
Industrial	2,499	2,290	9.1%	2,520	-0.8%
Commercial	3,288	2,914	12.8%	3,322	-1.0%
Rural	158	134	17.9%	168	-6.0%
Public Sector	85	51	66.7%	81	4.9%
Public Service	451	146	208.9%	339	33.0%
Utilities	7	8	-12.5%	8	-12.5%
Total free-market customers	6,488	5,543	17.0%	6,438	0.8%
Total captive + free market	9,635,247	9,487,204	1.6%	9,623,098	0.1%

Average Effect of the Tariff adjustment
High-Voltage Average	9.4%
Low-Voltage Average	5.2%
Average Effect	6.5%

Tariff Review	2018	2023
Gross remuneration base - R$ million	20,490	25,587
Net remuneration base - R$ million	8,906	15,200
Average depreciation rate	3.84%	3.95%
WACC (after taxes)	8.09%	7.43%
Interest on Special Bonds - R$ million	149	272
CAIMI - R$ million	333	484
QRR R$ - Depreciation (Gross base × depreciation rate)	787	1,007

Cemig GT - MWh	2Q26	2Q25	YoY % Change	1Q26	QoQ % Change
Free-Market Customers	3,916,242	3,625,816	8.0%	3,629,097	7.9%
Industrial	2,648,039	2,441,227	8.5%	2,342,687	13.0%
Commercial	1,167,139	1,152,685	1.3%	1,207,399	-3.3%
Rural	47,369	27,707	71.0%	39,352	20.4%
Public Sector	53,695	4,197	1,179.3%	39,659	35.4%
Free Market (ACL) – Traders and Cooperatives	1,998,179	1,574,194	26.9%	1,737,699	15.0%
Quota Supply	565,793	565,513	0.0%	567,622	-0.3%
Regulated Market (ACR)	555,750	554,118	0.3%	571,697	-2.8%
Regulated Market (ACR) – Cemig D	33,132	32,580	1.7%	33,437	-0.9%
Total GT	7,069,095	6,352,221	11.3%	6,539,552	8.1%

Cemig H - MWh	2Q26	2Q25	YoY % Change	1Q26	QoQ % Change
Free-Market Customers	2,103,383	2,481,986	-15.3%	2,050,436	2.6%
Industrial	1,654,713	1,978,731	-16.4%	1,580,159	4.7%
Commercial	398,634	476,561	-16.4%	405,428	-1.7%
Rural	26,800	26,694	0.4%	41,859	-36.0%
Public Service	23,236		-	22,991	1.1%
Free Market (ACL) – Traders and Cooperatives	1,744,359	2,408,829	-27.6%	2,063,547	-15.5%
Total H	3,847,741	4,890,815	-21.3%	4,113,984	-6.5%

Cemig GT + H	10,916,837	11,243,037	-2.9%	10,653,535	2.5%

EBITDA - R$ thousand	2Q26	2Q25	YoY % Change	1Q26	QoQ % Change
Net Income	95,899	150,821	-36.4%	100,598	-4.7%
Income tax and social contribution expense	50,765	73,467	-30.9%	47,083	7.8%
Financial result	32,048	(4,533)	-	21,138	51.6%
Depreciation and amortization	27,193	23,735	14.6%	23,922	13.7%
EBITDA as defined in “CVM Resolution 156”	205,905	243,490	-15.4%	192,741	6.8%

MARKET (Volume in thousand m³)	2024	2025	2Q26	2Q25	YoY % Change	1Q26	QoQ % Change
Automotive	22,511	19,216	4,768	3,939	-17.4%	3,923	0.4%
Compressed Natural Gas - Automotive	630	417	110	56	-49.1%	97	-42.3%
Industrial	786,363	513,509	174,789	69,896	-60.0%	76,892	-9.1%
Compressed Natural Gas - Industrial	10,275	8,938	2,643	2,444	-7.5%	1,487	64.4%
Residential	12,095	13,194	3,550	3,366	-5.2%	3,028	11.2%
Cogeneration	12,164	10,108	3,371	100	-97.0%	123	-18.7%
Commercial	23,203	24,598	6,161	6,790	10.2%	6,281	8.1%
Subtotal - captive market	867,241	589,980	195,392	86,591	-55.7%	91,831	-5.7%
Industrial - free market	107,723	364,178	58,901	132,849	125.5%	134,841	-1.5%
Compressed Natural Gas - Industrial - free market	7,699	10,145	2,581	2,288	-11.4%	2,255	1.5%
Cogeneration - free market	0	3,763		3,272	-	3,786	-13.6%
Thermal - free market	58,046	66,919	20,112	4,846	-75.9%	11,785	-58.9%
Subtotal - free market	173,468	445,005	81,594	143,255	75.6%	152,667	-6.2%
Total (captive + free market)	1,040,709	1,034,985	276,986	229,845	-17.0%	244,498	-6.0%

R$ thousand	2Q26	2Q25	YoY % Change	1Q26	QoQ % Change
Gross electricity supply	9,055,911	8,686,379	4.3%	8,995,136	0.7%
Revenue from use of the distribution system – TUSD	1,633,700	1,414,496	15.5%	1,510,020	8.2%
CVA and other financial components	213,753	70,394	203.7%	369,582	-42.2%
Revenue from transmission operation and maintenance	103,282	114,197	-9.6%	49,336	109.3%
Revenue from construction and transmission improvements	223,329	179,130	24.7%	151,789	47.1%
Financial return on transmission contract assets	180,024	30,416	491.9%	38,341	369.5%
Revenue from generation compensation	35,805	31,201	14.8%	35,146	1.9%
Revenue from distribution construction	1,587,229	1,324,446	19.8%	1,376,970	15.3%
Remeasurement of the distribution concession's indemnifiable financial asset (VNR)	79,686	26,618	199.4%	65,278	22.1%
Revenue from indexation of the concession grant bonus	147,979	118,859	24.5%	120,632	22.7%
Settlement at CCEE	65,442	39,585	65.3%	19,832	230.0%
Gas supply	563,336	965,491	-41.7%	556,413	1.2%
Customer compensation for continuity breaches	(39,694)	(39,949)	-0.6%	(48,017)	-17.3%
Other revenue	1,109,677	1,315,539	-15.6%	1,030,792	7.7%
Taxes and charges levied on revenue	(3,803,221)	(3,490,507)	9.0%	(3,808,707)	-0.1%
Net revenue	11,156,238	10,786,295	3.4%	10,462,543	6.6%

CONSOLIDATED - R$ thousand	2Q26	2Q25	YoY % Change	1Q26	QoQ % Change
Energy purchased for resale	4,785,257	4,547,303	5.2%	4,915,028	-2.6%
Basic grid usage charges	830,506	776,715	6.9%	718,658	15.6%
Gas purchased for resale	198,475	485,097	-59.1%	213,270	-6.9%
Construction cost	1,753,090	1,463,371	19.8%	1,482,436	18.3%
Personnel	420,807	388,389	8.3%	365,592	15.1%
Employee and management profit sharing	53,380	46,024	16.0%	45,054	18.5%
Post-employment obligations	50,233	109,324	-54.1%	50,233	0.0%
Materials	24,341	26,654	-8.7%	32,348	-24.8%
Third-party services	640,052	527,007	21.5%	596,063	7.4%
Depreciation and amortization	410,069	368,393	11.3%	401,321	2.2%
Provisions (reversals)	215,149	63,999	236.2%	84,000	156.1%
Expected credit losses	(177,013)	3,098	-	83,363	-
Expected loss on other receivables	50,312	30,126	67.0%	34,534	45.7%
RBSE Remeasurement	-	198,895	-	-	-
Other costs and expenses	163,717	138,641	18.1%	131,804	24.2%
Total Costs and Expenses	9,418,375	9,173,036	2.7%	9,153,704	2.9%
Gain on disposal of intangible assets	-	-	-	(26,191)	-
Total Other Revenue (expense reduction)	-	-	-	(26,191)	-
GRAND TOTAL	9,418,375	9,173,036	2.7%	9,127,513	3.2%

Cemig D R$ thousand	2Q26	2Q25	YoY % Change	1Q26	QoQ % Change
Energy purchased through auctions in regulated market	1,072,517	1,057,434	1.4%	1,276,628	-16.0%
Distributed generation	901,198	846,075	6.5%	1,018,078	-11.5%
Short-term energy	499,636	333,854	49.7%	328,894	51.9%
Itaipu Binacional energy	277,364	322,822	-14.1%	271,131	2.3%
Firm energy quota contracts	188,658	205,235	-8.1%	191,504	-1.5%
Bilateral contracts	26,620	132,433	-79.9%	26,328	1.1%
PROINFA	108,404	134,838	-19.6%	108,403	0.0%
Quotas for Angra I and II power plants	56,840	83,446	-31.9%	49,970	13.7%
PIS/PASEP and COFINS credits	(195,527)	(198,698)	-1.6%	(197,993)	-1.2%
TOTAL	2,935,710	2,917,439	0.6%	3,072,943	-4.5%

Consolidated EBITDA 2Q26 R$ thousand	Generation	Transmission	Trading	Distribution	Gas	Holding / Equity Interests	Total
Net Income for the period	465,514	189,072	(308,139)	483,134	95,897	19,966	945,444
Income and social contribution taxes	24,737	23,769	(63,283)	103,627	49,062	(50,015)	87,897
Financial result	42,030	33,322	269	608,194	32,050	80,040	795,905
Depreciation and amortization	84,847	4,941	3	281,795	28,896	9,587	410,069
EBITDA as defined in “CVM Resolution 156”	617,128	251,104	(371,150)	1,476,750	205,905	59,578	2,239,315
Non-recurring and non-cash items
Net income attributable to non-controlling shareholders	-	-	-	-	(412)	-	(412)
Voluntary Dismissal Program	4,188	2,588	593	31,546	-	3,882	42,797
Provisions - Consumer Relations	-	-	190,653	-	-	-	190,653
Adjusted EBITDA	621,316	253,692	(179,904)	1,508,296	205,493	63,460	2,472,353

Consolidated EBITDA 2Q25 R$ thousand (Restated)	Generation	Transmission	Trading	Distribution	Gas	Holding / Equity Interests	Total
Net Income for the period	449,724	(2,841)	6,481	550,550	150,820	33,547	1,188,281
Income and social contribution taxes	31,781	(36,693)	(3,961)	147,391	71,765	(20,474)	189,809
Financial result	(11,424)	5,137	9,711	288,644	(6,058)	26,577	312,587
Depreciation and amortization	78,044	4,652	3	254,372	25,438	5,884	368,393
EBITDA as defined in “CVM Resolution 156”	548,125	(29,745)	12,234	1,240,957	241,965	45,534	2,059,070
Non-recurring and non-cash items
Net income attributable to non-controlling shareholders	-	-	-	-	(648)	-	(648)
Remeasurement of post-employment liabilities	(2,302)	(1,422)	(326)	(16,163)	-	(948)	(21,161)
RBSE Remeasurement	-	198,895	-	-	-	-	198,895
Voluntary Dismissal Program	1,920	1,187	272	20,812	-	1,200	25,391
Adjusted EBITDA	547,743	168,915	12,180	1,245,606	241,317	45,786	2,261,547

Consolidated EBITDA 1Q26 R$ thousand	Generation	Transmission	Trading	Distribution	Gas	Holding / Equity Interests	Total
Net Income for the period	396,428	138,987	(125,152)	397,653	100,598	70,465	978,979
Income and social contribution taxes	33,065	20,581	(28,658)	54,435	38,568	(48,039)	69,952
Financial result	23,619	14,414	(7,243)	283,611	21,138	2,885	338,424
Depreciation and amortization	79,143	4,610	3	274,697	32,437	10,431	401,321
EBITDA as defined in “CVM Resolution 156”	532,255	178,592	(161,050)	1,010,396	192,741	35,742	1,788,676
Non-recurring and non-cash items
Net income attributable to non-controlling shareholders	-	-	-	-	(434)	-	(434)
Adjusted EBITDA	532,255	178,592	(161,050)	1,010,396	192,307	35,742	1,788,242

R$ thousand	2Q26	2Q25 Restated	YoY % Change	1Q26	QoQ % Change
Net income for the period	483,134	550,554	-12.2%	397,653	21.5%
Income tax and social contributions	103,627	147,390	-29.7%	54,436	90.4%
Net financial income	608,194	288,643	110.7%	283,611	114.4%
Amortization	281,795	254,373	10.8%	274,697	2.6%
EBITDA as defined in “CVM Resolution 156”	1,476,750	1,240,960	19.0%	1,010,396	46.2%
Scheduled Voluntary Dismissal Program	31,546	20,812	51.6%	-	-
Remeasurement of post-employment liabilities	-	(16,163)	-	-	-
Adjusted EBITDA	1,508,296	1,245,609	21.1%	1,010,396	49.3%
VNR	79,686	26,618	199.4%	65,278	22.1%
Adjusted EBITDA (-) VNR	1,428,610	1,218,991	17.2%	945,118	51.2%

2Q26 R$ thousand	Generation	Transmission	Trading	Equity Interests	Total
Net income for the period	468,395	177,113	(297,631)	(78,287)	269,590
Income tax and social contribution expense	24,736	22,227	(57,828)	3,254	(7,611)
Financial result	42,030	33,907	9,792	34,131	119,860
Depreciation and amortization	86,249	5,001	3	6,649	97,902
EBITDA as defined in “CVM Resolution 156”	621,410	238,248	(345,664)	(34,253)	479,741
Provision - arbitration proceedings from free-market client	-	-	190,653	-	190,653
Voluntary Dismissal Program	4,188	2,588	593	797	8,166
Adjusted EBITDA	625,598	240,836	(154,418)	(33,456)	678,560

2Q25 Restated R$ thousand	Generation	Transmission	Trading	Equity Interests	Total
Net income for the period	460,115	(6,031)	(55,415)	(56,549)	342,120
Income tax and social contribution expense	32,081	(37,895)	(16,295)	3,971	(18,138)
Financial result	(11,506)	5,549	587	14,204	8,834
Depreciation and amortization	76,419	5,852	3	-	82,274
EBITDA as defined in “CVM Resolution 156”	557,109	(32,525)	(71,120)	(38,374)	415,090
Voluntary Dismissal Program	1,920	1,187	272	366	3,745
RBSE Remeasurement	-	198,895	-	-	198,895
Remeasurement of post-employment liabilities	(2,302)	(1,422)	(326)	(438)	(4,488)
Adjusted EBITDA	556,727	166,135	(71,174)	(38,446)	613,242

Q1 2026 R$ thousand	Generation	Transmission	Trading	Equity Interests	Total
Net income for the period	395,359	136,979	(104,746)	(34,872)	392,720
Income tax and social contribution expense	33,066	19,478	(18,147)	2,504	36,901
Financial result	23,619	14,971	(7,243)	20,175	51,522
Depreciation and amortization	82,749	4,670	3	7,083	94,505
EBITDA as defined in “CVM Resolution 156”	534,793	176,098	(130,133)	(5,110)	575,648
Adjusted EBITDA	534,793	176,098	(130,133)	(5,110)	575,648

FINANCIAL RESULT - R$ thousand	2Q26	2Q25	YoY % Change	1Q26	QoQ % Change
Financial income	290,189	302,444	-4.1%	257,960	12.5%
Financial expenses	(1,086,094)	(615,031)	76.6%	(596,384)	82.1%
Financial result	(795,905)	(312,587)	154.6%	(338,424)	135.2%

RECONCILIATION OF CONSOLIDATED RECURRING NET INCOME R$ thousand	2Q26	2Q25	1Q26
Net income for the period (IFRS)	945,444	1,188,281	978,979
Remeasurement of post-employment liabilities	-	(13,966)	-
RBSE remeasurement	-	131,271	-
Provision - arbitration proceedings from free-market client	143,130	-
Voluntary dismissal program	28,246	16,758	-
RECURRING NET INCOME	1,116,820	1,322,344	978,979

ENERGY TRANSITION	• Offset 100% of Scope 1 emissions by 2026 • Achieve Net Zero by 2040 and reduce total greenhouse gas emissions by 60% by 2030 • Achieve 100% renewable power generation • Sell 37.4 million renewable energy certificates by 2030 • 100% of municipal administrative centers with dual power sources • Connect 7 GW of distributed generation by 2028 • Install 1,250,000 smart meters by 2027
ENVIRONMENT	• Recycle and/or reuse at least 98% of the industrial waste generated by 2027 • Conduct an assessment of Cemig’s impacts on and dependence on ecosystem services.
LOCAL DEVELOPMENT	• Digitize at least 85% of customer service interactions by 2026 • Convert the single-phase grid to three-phase through the Minas Trifásico Project by 2027 • Benefit 120,000 families by regularizing their energy supply • Benefit at least 60,000 people through projects focused on children, seniors, and sports by 2027
OUR PEOPLE	• Embed a culture of health and safe behavior within the company and across the value chain by 2030 • Establish a culture that values diversity, equity, and inclusion by 2030
STRONG GOVERNANCE	• Comply with 100% of the requirements of the Global Compact Transparency Initiative by 2026 • Maintain, through 2030, zero individuals affected by cybersecurity breaches involving leaks of critical personal data capable of causing material harm to the data subject. • Implement the Sustainable Value Chain Management Program by 2027

Indicators	1Q26	2Q26
Renewable fuel consumption (GJ) – cumulative	1,410.8	4,875.4
Non-renewable fuel consumption (GJ) – cumulative	30,811.5	30,840.4
Basic transmission grid loss rate (%)	1.9	3.0
Total distribution losses rate*	11.4	11.4
% of generation from renewable sources	100.0	100.0

	Jun/26	2025	% Change
Share Price (2)
CMIG4 (PN) closing price (R$/share)	10.87	10.57	2.86%
CMIG3 (ON) closing price (R$/share)	15.60	14.09	10.72%
CIG (ADR PN) closing price (US$/share)	2.06	1.90	8.29%
CIG.C (ADR ON) closing price (US$/share)	3.05	2.61	16.86%
Average daily volume
CMIG4 (PN) (R$ million)	177.06	127.52	38.85%
CMIG3 (ON) (R$ million)	2.06	3.24	-36.53%
CIG (ADR PN) (US$ million)	14.17	5.49	157.97%
CIG.C (ADR ON) (US$ million)	0.01	0.01	30.68%
Indices
IEE	128,089	123,056	4.09%
IBOV	172,024	161,125	6.76%
CDI	10,966	10,258	6.90%
Indicators
Market value at period-end (R$ million)	35,620	35,388	0.66%
Enterprise value (EV - R$ million) (1)	53,444	48,488	10.22%
CMIG4 (PN) Dividend Yield (%) (3)	11.78	14.74	-2.95 p.p.
CMIG3 (ON) Dividend Yield (%) (3)	8.21	11.23	-3.02 p.p

Power Plants	Company	Cemig Capacity (MW)	Cemig Assured Capacity (MW)	End of Concession	Type	Cemig's Stake
Emborcação	CEMIG GT	1,192.00	474.80	46,534.00	HPP	100.00%
Nova Ponte	CEMIG GT	510.00	256.60	46,613.00	HPP	100.00%
Três Marias	CEMIG GT	396.00	227.10	55,890.00	HPP	100.00%
Irapé	CEMIG GT	399.00	197.90	51,437.00	HPP	100.00%
Salto Grande	CEMIG GT	102.00	73.80	55,890.00	HPP	100.00%
Sá Carvalho	Sá Carvalho	78.00	54.40	46,264.00	HPP	100.00%
Rosal	Rosal Energia	55.00	27.70	49,659.00	HPP	100.00%
Itutinga	CEMIG G. ITUTINGA	52.00	26.60	55,890.00	HPP	100.00%
Boa Esperança	CEMIG GT	85.00	25.00	57,573.00	UPV	100.00%
Camargos	CEMIG G. CAMARGOS	46.00	21.60	55,890.00	HPP	100.00%
Três Marias Jusante	CEMIG GT	70.00	20.00	57,755.00	UPV	100.00%
Volta do Rio	CEMIG GT	42.00	18.41	48,208.00	WIND	100.00%
Poço Fundo	CEMIG GT	30.00	16.81	55,671.00	SHPP	100.00%
Pai Joaquim	CEMIG PCH	23.00	13.91	51,761.00	SHPP	100.00%
Piau	CEMIG G. SUL	18.01	13.53	55,890.00	HPP	100.00%
Praias de Parajuru	CEMIG GT	28.80	8.39	48,481.00	WIND	100.00%
Gafanhoto	CEMIG G. OESTE	14.00	6.68	55,890.00	HPP	100.00%
Peti	CEMIG G. LESTE	9.40	6.18	55,890.00	HPP	100.00%
Joasal	CEMIG G. SUL	8.40	5.20	55,890.00	HPP	100.00%
Tronqueiras	CEMIG G. LESTE	8.50	3.39	53,671.00	HPP	100.00%
Pipoca	Hidrelétrica Pipoca	20.00	11.90	49,288.00	SHPP	100.00%
Queimado	CEMIG GT	86.63	53.30	51,678.00	HPP	82.50%
Belo Monte	Norte	1,313.00	534.29	53,521.00	HPP	11.69%
Paracambi	Lightger	12.25	9.57	48,954.00	SHPP	49.00%
Cachoeirão	Hidrelétrica Cachoeirão	13.23	8.02	53,329.00	SHPP	49.00%
Outras		59.43	30.69
Subtotal		4,672	2,146
Geração Distribuída
Cemig GT	Cemig GT	14.5	3.6		UPV	100.00%
Cemig Sim	Cemig Sim	132.9	34.7		UPV	100.00%
Subtotal		147.4	38.3
Total		4,819	2,184

Project	Company	Installed Capacity (MWac)	Capacity (MWp)	Expected Generation (MWm)	Expected Commissioning Date
Ouro Solar	Cemig Sim	11.50	16.33	3.33	Nov/26–Dec/26
Bloco Azul	Cemig Sim	15.00	21.30	3.77	Aug/26–Dec/26
Solar do Cerrado	Cemig Sim	30.00	42.00	8.57	Jul/26–Jan/27
Cemig GT - Sol Central	Cemig GT	17.03	22.10	4.02	Jul/26–Nov/27
Total		73.5	101.7	19.7

R$ thousand	RAP	Adjustment Portion	Total	Concession Agreement	Maturity	Inflation Adjustment Index
Cemig GT	1,264,353	92,311	1,356,664	006/97	Dec-42	IPCA
Cemig Itajubá	51,494	(874)	50,620	079/00	Oct-30	IGPM
Centroeste	15,775	(453)	15,322	004/05	Mar-35	IGPM
ETTM	6,316	(829)	5,486	002/12	Jan-42	IPCA
Sete Lagoas (Holding*)	12,478	(101)	12,376	006/11	Jun-41	IPCA
Cemig	1,350,415	90,053	1,440,468
TAESA (21.68% stake held by Cemig)	987,707	(38,270)	949,437
TOTAL RAP	2,338,122	51,783	2,389,905

R$ thousand per Cycle	2025–2026	2026–2027	2027–2028	2028–2029	2029 through 2033
Economy	117,746	117,191	117,191	36,918	36,918
Financial	312,781	312,781	312,781	-	-
TOTAL	430,527	429,972	429,972	36,918	36,918