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INVESTMENTS (Tables)

12 Months Ended

Dec. 31, 2023

Disclosure of detailed information about business combination [line items]

Schedule of fair value of liquid assets acquired

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​	​	​	​	​	​	​	​	​	​	​
​		sep/23		oct/23		Nov-23		dec/23		dec/23
Fair value of liquid assets acquired by the Company	​	Teles Pires	​	Baguari	​	Retiro Baixo	​	TMT	​	VSB
​	​	​	​	​	​	​	​	​	​	​
Fair value of assets acquired
Cash and cash equivalents		109,488		138,039		58,335		14,530		15,644
Accounts receivable		106,619		23,363		10,775		5,502		5,693
Fixed Assets		3,857,686		389,966		285,859		—		—
Asset contract		—		—		—		566,949		483,938
Intangible		222,156		860,446		158,669		896		22,989
Other assets		704,727		28,985		12,704		2,627		440
​		5,000,676		1,440,799		526,342		590,504		528,704
Fair value of liabilities assumed
Loans		2,688,777		14,126		30,179		—		—
Remuneration to shareholders		—		35,791		—		—		—
Provisions		261,916		64,435		—		1,757		155
Other current and non-current liabilities		847,719		296,809		60,270		6,103		11,193
​		3,798,412		411,161		90,449		7,860		11,348
​	​	​	​	​	​	​	​	​	​	​
Fair value of net assets acquired		1,202,264		1,029,638		435,893		582,644		465,620
Participation of non-controlling shareholders		​		​		​		​		51,736

Schedule of movement in the most relevant investments

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​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​		​	​	​		​		​		​		​		​		​		​
​	​	​	​	​	​	Capital	​	Acquisition of	​	Other	​	Dividends and	​	​	​	​	​	​
​	​	​	​	Balance on	​	payment/	​	investee	​	Comprehensive	​	interest on own	​	Equity pickup	​	Estimated loss	​	Balance on
Equity interests and other investments	​	Shareholdings	​	12/31/2022	​	Increase	​	control	​	Results	​	capital	​	method	​	on investments		12/31/2023
Jointly controlled companies		​	​	​		​		​		​	​	​	​	​		​		​
Norte Energia S.A. - NESA		49.98%	​	6,060,822		—		—		—	​	—	​	(431,409)		(337,152)		5,292,261
Energia Sustentável do Brasil S.A. - ESBR		40.00%	​	3,563,552		—		—		—	​	—	​	17,684		-		3,581,236
Belo Monte Transmissora de Energia S.A. - BMTE		49.00%	​	2,005,808		550		—		—	​	(63,089)	​	208,823		-		2,152,092
Interligação Elétrica do Madeira S.A. - IE Madeira		49.00%	​	1,735,667		—		—		—	​	(67,845)	​	201,815		92,192		1,961,829
Mata de Santa Genebra Transmissão S.A.		49.90%	​	548,104		—		—		—	​	(13,782)	​	58,030		141,393		733,745
Empresa de Energia São Manoel S.A.		33.33%	​	588,913		—		—		—	​	-	​	(9,405)		-		579,508
Interligação Elétrica Garanhuns S.A. - IE Garanhuns		49.00%	​	502,090		—		—		—	​	(16,433)	​	57,613		-		543,270
Companhia Energética Sinop S.A. - SINOP		49.00%	​	526,442		—		—		—	​	-	​	(27,042)		139,677		639,077
Sistema de Transmissão Nordeste S.A. - STN		49.00%	​	269,217		—		—		—	​	(52,145)	​	47,000		-		264,072
Chapecoense Geração S.A.		40.00%	​	253,633		—		—		—	​	(221,467)	​	183,212		-		215,378
Enerpeixe S.A.		40.00%	​	261,789		—		—		—	​	(1,848)	​	3,695		-		263,636
Paranaíba Transmissora de Energia S.A.		24.50%	​	222,169		—		—		—	​	(8,360)	​	35,201		-		249,010
MGE Transmissão S.A.		49.00%	​	196,954		—		—		—	​	(13,941)	​	20,702		-		203,715
Goiás Transmissão S.A.		49.00%	​	206,773		—		—		—	​	(29,751)	​	14,553		-		191,575
Vamcruz I Participações S.A.		24.50%	​	130,332		—		—		—	​	(394)	​	1,661		-		131,599
Rouar S.A.		50.00%	​	133,828		—		—		(10,031)	​	(12,560)	​	12,206		-		123,443
Transenergia Renovável S.A.		49.00%	​	96,112		—		—		—	​	(13,117)	​	18,568		-		101,563
Transnorte Energia S.A.¹		50.38%	​	39,627		—		—		—	​	-	​	38,830		122,787		201,244
Tijoa Participações e Investimentos		49.90%	​	28,527		—		—		—	​	(41,813)	​	43,189		-		29,903
Teles Pires Participações S.A. - TPP		100.00%	​	315,385		26,696		(589,111)		—	​	-	​	(38,234)		285,264		-
Triangulo Mineiro Transmissora de Energia S.A.		100.00%	​	199,746		—		(217,489)		—	​	(4,410)	​	22,153		-		-
Retiro Baixo Energética S.A.		100.00%	​	155,470		—		(168,566)		—	​	-	​	13,096		-		-
Vale do São Bartolomeu Transmissora de Energia S.A.		90.00%	​	89,860		—		(103,945)		—	​	(3,120)	​	17,205		-		-
Baguari Energia		100.00%	​	71,987		—		(59,451)		—	​	(5,109)	​	(7,427)		-		-
Others²		30.61% to 54.01%	​	158,714		28,826		—		—	​	(147,086)	​	119,256		16,652		176,362
​		​	​	18,361,521		56,072		(1,138,562)		(10,031)	​	(716,270)	​	620,975		460,813		17,634,518
Associates		​	​	​		​	​	​	​	​	​	​	​	​	​	​	​	​
Eletronuclear³		67.95%	​	7,188,028		—		—		(1,204)	​	—	​	26,530		—		7,213,354
Companhia de Transmissão de Energia Elétrica Paulista S.A. - CTEEP	​	35.74%	​	5,007,916	​	—	​	—	​	(68,008)	​	(519,299)	​	947,470	​	—	​	5,368,080
Others		33.41% to 40.44%	​	1,666,799		—		—		51,802	​	(316,805)	​	482,554		—		1,884,349
​	​	​	​	13,862,743	​	—	​	—	​	(17,410)	​	(836,104)	​	1,456,555	​	—	​	14,465,784
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​		​	​	32,224,264		56,072		(1,138,562)		(27,441)	​	(1,552,374)	​	2,077,530		460,813		32,100,302

¹ The Company has a 50.38% shareholding in Transnorte Energia S.A., however the control is shared with Alupar due to the shareholders agreement signed in March 2023;

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² The shareholding of 54.01% in Serra do Facão Energia S.A. that consists of 43.03% ON and 100.00% PN, with this being classified as a joint subsidiary; and

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³ The shareholding of 67.95% in Eletronuclear consists of 35.90% ON and 99.99% PN, with this being classified as an associate.

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​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​		​		​		​		​		​		​		Dividends		​		​		​
​	​	​	​	​	​	​	​	Transfer to	​	​	​	​	​	and	​	​	​	​	​	​
​	​	​	​	​	​	​	​	asset held	​	Other	​	​	​	interest on	​	Equity	​	Estimated	​	Balance
​	​	​	​	Balance on	​	Effects of	​	for	​	Comprehensive	​	Increase/Reduction	​	own	​	pickup	​	loss on	​	on
Equity interests and other investments	​	Shareholdings	​	12/31/2021	​	deconsolidation	​	sale/Write-off	​	Results	​	of capital	​	capital	​	method	​	investments	​	12/31/2022
Jointly controlled companies	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Norte Energia S.A. - NESA		49.98	%	6,384,303		—		—		—		—		—		(323,481)		—		6,060,822
Energia Sustentável do Brasil S.A. - ESBR		40.00	%	3,295,627		—		—		—		—		—		(41,692)		309,617		3,563,552
Belo Monte Transmissora de Energia S.A. - BMTE		49.00	%	1,895,036		—		—		—		—		(66,400)		177,172		—		2,005,808
Interligação Elétrica do Madeira S.A. - IE Madeira		49.00	%	1,409,983		—		—		—		—		(123,598)		231,063		218,219		1,735,667
Teles Pires Participações S.A. - TPP		49.44	%	789,994		—		—		—		46,336		—		(52,467)		(468,478)		315,385
Mata de Santa Genebra Transmissão S.A.		49.90	%	634,284		—		—		—		—		(74,570)		55,915		(67,525)		548,104
Interligação Elétrica Garanhuns S.A. - IE Garanhuns		49.00	%	413,106		—		—		—		—		(7,415)		96,399		—		502,090
Empresa de Energia São Manoel S.A.		33.33	%	428,168		—		—		—		—		—		(16,771)		177,516		588,913
Energética Águas da Pedra S.A. - EAPSA		49.00	%	291,327		—		(286,776)		—		—		(65,154)		60,603		—		—
Companhia Energética Sinop S.A. - SINOP		49.00	%	349,256		—		—		—		—		—		(38,037)		215,223		526,442
Sistema de Transmissão Nordeste S.A. - STN		49.00	%	258,272		—		—		—		—		(52,964)		63,909		—		269,217
Chapecoense Geração S.A.		40.00	%	454,259		—		—		—		—		(369,709)		169,083		—		253,633
Enerpeixe S.A.		40.00	%	266,309		—		—		—		—		—		(4,520)		—		261,789
Goiás Transmissão S.A.		49.00	%	177,274		—		—		—		—		(9,188)		38,687		—		206,773
Paranaíba Transmissora de Energia S.A.		24.50	%	188,675		—		—		—		—		(10,433)		43,927		—		222,169
MGE Transmissão S.A.		49.00	%	168,273		—		—		—		—		(8,934)		37,615		—		196,954
Triangulo Mineiro Transmissora de Energia S.A.		49.00	%	182,828		—		—		—		—		(5,145)		22,063		—		199,746
Retiro Baixo Energética S.A.		49.00	%	168,726		—		—		—		—		(37,513)		24,257		—		155,470
Rouar S.A.		50.00	%	134,264		—		—		(9,089)		—		(4,734)		13,387		—		133,828
Transenergia Renovável S.A.		49.00	%	97,461		—		—		—		—		(13,514)		12,165		—		96,112
Vale do São Bartolomeu Transmissora de Energia S.A.		39.00	%	79,406		—		—		—		—		(6,240)		16,694		—		89,860
Luziania-Niquelandia Transmissora S.A.		49.00	%	38,320		—		—		—		—		(5,700)		15,130		—		47,750
Itaipu		—		279,025		—		(279,025)		—		—		—		—		—		—
Others		24.50% to 54.10	%	364,160		—		(22,068)		—		19,798		(51,137)		70,036		648		381,437
​		​		18,748,336		—	​	(587,869)		(9,089)		66,134		(912,348)		671,137		385,220		18,361,521
Associates	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Eletronuclear		67.95	%	—		6,571,987		—		474,581		—		—		141,460		—		7,188,028
Companhia de Transmissão de Energia Elétrica Paulista S.A. - CTEEP		35.03	%	4,451,016		—		—		75,855		(11,244)		(250,310)		742,599		—		5,007,916
Companhia Estadual de Transmissao de Energia Elétrica - CEEE-T		—		644,208		—		(648,271)		—		—		4,063		—		—		—
Lajeado Energia S.A.		40.07	%	99,516		—		—		67		—		(115,640)		112,094		—		96,037
CEB Lajeado S.A.		40.07	%	74,160		—		—		18		—		(37,123)		57,784		—		94,839
Paulista Lajeado Energia S.A.		40.07	%	37,925		—		—		—		—		(13,690)		(9,713)		—		14,522
Others		33.28% to 39.02	%	1,714,011		—		(344,643)		23,414		(6,688)		(215,141)		290,448		—		1,461,401
​		​		7,020,836	​	6,571,987		(992,914)		573,935		(17,932)		(627,841)		1,334,672		—		13,862,743
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​		25,769,172		6,571,987		(1,580,783)		564,846		48,202		(1,540,189)		2,005,809		385,220		32,224,264

Schedule of the balance of provisions for investments

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​	​	​	​	​
​		12/31/2023		12/31/2022
Norte Energia S.A.	​	337,152	​	—
Teles Pires Participações S.A. - TPP	​	—	​	468,478
Interligação Elétrica do Madeira S.A. - IE Madeira		—		92,192
Companhia Energética Sinop S.A. - SINOP		—		139,677
Transnorte Energia S.A.		—		122,787
Mata de Santa Genebra Transmissão S.A.		—		141,393
Lago Azul Transmissão		—		16,652
​		337,152		981,179

Schedule of investments recognized at fair value

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​	​	​	​	​	​	​	​	​
​	​	Shareholdings	​	Asset Value	​	Fair value
​		12/31/2023		12/31/2023		12/31/2023		12/31/2022
AES Tietê Energia S.A	​	0.53	%	11,551	​	38,990	​	383,958
Companhia Energética do Ceará - COELCE		7.06	%	76,658		193,330		200,391
Energisa Holding		1.16	%	57,144		248,904		371,418
Auren Energia S.A.		0.05	%	3,114		6,978		152,425
Centrais Elétricas de Santa Catarina S.A - CELESC		10.75	%	266,636		270,991		227,237
Companhia Paranaense de Energia - COPEL		—	​	—		—		105,164
Equatorial Energia Pará		0.99	%	16,075		169,356		143,008
Energisa Mato Grosso - Distribuidora de Energia S.A.		—	​	—		—		32,632
Rio Paranapanema Energia		0.47	%	3,924		11,524		11,899
Companhia Energética de Brasília - CEB	​	2.10	%	11,861	​	25,039	​	16,330
CEEED	​	4.62	%	—	​	68,575	​	—
Others		Between 0.0019% to 0.13	%	3,999		70,694		116,796
​		​	​	450,962		1,104,381		1,761,258

Schedule of information of the main joint ventures and associates

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​	​	12/31/2023
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	Other	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	components of	​	Total
​	​	Shareholder’s	​	Current	​	Non-current	​	Total	​	Current	​	Non-Current	​	​	​	Total	​	Net operating	​	Net	​	comprehensive	​	comprehensive
​		Equity		assets		asset		asset		Liabilities		Liability		Net assets		liabilities		revenue		Profit / (Loss)		income		income
Jointly controlled companies		​	​	​		​		​		​		​		​		​		​		​		​		​
Norte Energia S.A. - NESA	​	49.98	%	1,773,469	​	41,373,463	​	43,146,932	​	2,354,484	​	29,534,358	​	11,258,090	​	43,146,932	​	5,764,413	​	(850,814)	​	—	​	(850,814)
Energia Sustentável do Brasil S.A. - ESBR		40.00	%	1,450,472		18,666,697		20,117,169		1,136,429		10,027,652		8,953,088		20,117,169		3,378,906		44,213		—		44,213
Belo Monte Transmissora - BMTE		49.00	%	1,231,090		7,944,087		9,175,177		613,330		4,170,939		4,390,908		9,175,177		1,039,054		415,782		—		415,782
Interligação Elétrica do Madeira S.A. - IE Madeira		49.00	%	1,022,813		6,293,140		7,315,953		578,744		2,733,476		4,003,733		7,315,953		712,294		411,868		—		411,868
Mata de Santa Genebra		49.90	%	689,261		3,078,913		3,768,174		115,975		2,181,769		1,470,430		3,768,174		393,463		116,292		—		116,292
Chapecoense Geração		40.00	%	410,737		2,573,564		2,984,301		607,435		1,838,423		538,443		2,984,301		1,274,912		487,050		—		487,050
Empresa de Energia São Manoel		33.33	%	320,697		3,419,572		3,740,269		151,647		1,850,081		1,738,541		3,740,269		446,946		(28,801)		—		(28,801)
Companhia Energética Sinop	​	49.00	%	210,141	​	2,706,715	​	2,916,856	​	143,063	​	1,469,551	​	1,304,242	​	2,916,856	​	341,162	​	(55,189)	​	—	​	(55,189)
Associates	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Companhia de Transmissão de Energia Elétrica Paulista S.A. - CTEEP		35.74	%	5,978,428	​	29,932,728	​	35,911,156	​	2,444,736	​	15,674,708	​	17,380,140	​	35,499,584	​	6,215,521	​	2,892,362		(186,196)		2,706,166
Eletronuclear		67.95	%	3,179,932		19,937,388		23,117,320		2,612,091		9,889,551		10,615,678		23,117,320		3,931,707		318,199		(1,772)		316,427

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Additional information:

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12/31/2023

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Cash and cash

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Current financial

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Non-current financial

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Depreciation and

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Income tax

Jointly controlled companies

equivalents

liabilities*

liabilities*

amortisation

Interest income

Interest expense

expense

Norte Energia S.A. - NESA

704,312

978,409

28,236,723

(1,708,076)

275,685

(2,570,068)

151,829

Jirau Energia S.A.

863,473

785,517

9,464,700

(760,823)

150,273

(1,008,553)

(26,923)

Associates

Companhia de Transmissão de Energia Elétrica Paulista S.A. - CTEEP

245,819

2,094,880

15,126,192

(24,889)

222,090

(1,043,648)

(228,637)

Eletronuclear

29,374

544,969

6,352,760

(420,733)

907,977

(1,374,023)

(269,463)

* Excluding trade and other payables and provisions.

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12/31/2022

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Other

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​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

components of

​

Total

​

​

Shareholder’s

​

Current

​

Non-current

​

Total

​

Current

​

Non-Current

​

​

​

Total

​

Net operating

​

Net

​

comprehensive

​

comprehensive

​

Equity

assets

asset

asset

Liabilities

Liability

Net assets

liabilities

revenue

Profit / (Loss)

income

income

Jointly controlled companies

​

​

​

​

​

​

​

​

​

​

​

​

​

Norte Energia S.A. - NESA

49.98

%

1,760,261

​

41,668,551

​

43,428,812

​

2,254,754

​

29,070,142

​

12,103,916

​

43,428,812

​

5,565,305

​

(647,346)

​

—

​

(647,346)

Sustentável do Brasil S.A. - ESBR

40.00

%

1,210,513

19,354,405

20,564,918

1,058,167

10,597,876

8,908,875

20,564,918

3,116,478

(104,235)

—

(104,235)

Belo Monte Transmissora - BMTE

49.00

%

1,140,735

7,679,713

8,820,448

630,800

4,096,162

4,093,486

8,820,448

954,985

360,022

—

360,022

Interligação Elétrica do Madeira S.A. - IE Madeira

49.00

%

931,271

6,251,143

7,182,414

634,666

2,817,425

3,730,323

7,182,414

735,154

471,557

—

471,557

Associates

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Companhia de Transmissão de Energia Elétrica Paulista S.A. - CTEEP

35.74

%

4,670,170

27,573,380

32,243,550

1,293,346

14,413,723

16,536,481

32,243,550

5,450,570

2,319,791

216,001

2,535,792

Eletronuclear

67.95

%

4,610,349

​

18,373,593

​

22,983,942

​

2,434,613

​

9,970,923

​

10,578,406

​

22,983,942

​

3,963,282

​

29,822

​

698,427

​

728,249

​

Additional information:

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

12/31/2022

​

​

​

​

​

​

Non-current

​

​

​

​

​

​

​

​

​

​

Cash and cash

​

Current financial

​

financial

​

Depreciation and

​

​

​

​

​

Income tax

​

equivalents

liabilities*

liabilities*

amortisation

Interest income

Interest expense

expense

Jointly controlled companies

Norte Energia S.A. - NESA

741,217

933,855

28,701,002

(7,979)

235,784

(2,522,958)

115,441

Jirau Energia S.A.

692,538

728,213

10,005,345

(761,506)

115,409

(981,914)

51,122

Associates

Companhia de Transmissão de Energia Elétrica Paulista S.A. - CTEEP

336,523

1,052,827

14,096,618

(27,498)

169,221

(981,399)

(358,343)

Eletronuclear

32,471

594,758

6,718,183

(594,597)

540,160

(1,532,700)

(253,229)

* Excluding trade and other payables and provisions.

Schedule of market value of investees accounted for using the equity method that are quoted on the stock exchange

​

​	​	​	​	​	​	​
​	​	​	​	Fair value1
Valued using the equity method	​	Shareholdings		12/31/2023		12/31/2022
Companhia de Transmissão de Energia Elétrica Paulista S.A. - CTEEP		35.74	%	6,465,890	​	5,566,247
Equatorial Maranhão Distribuidora de Energia S.A.		33.41	%	1,605,618		1,348,024
Empresa Metropolitana de Águas e Energia S.A. - EMAE		40.44	%	881,517		1,015,837

¹ Based on the stock price on the base date reported in the table.

Schedule of share in guarantee

​

​	​	​	​	​	​	​
12/31/2023
Business	​	Value of	​	Percentage	​	Investment
Shareholdings	​	investment	​	Blocking	​	Blocked
Companhia de Transmissão de Energia Elétrica Paulista S.A. - CTEEP		5,255,701		37.17	%	1,953,354
AES Brasil Energia S.A.		38,990		95.99	%	37,425
Energisa Holding		248,904		99.43	%	247,497
Centrais Elétricas de Santa Catarina S.A - CELESC		270,991		14.58	%	39,511
Companhia Energética do Ceará - COELCE		193,330		5.46	%	10,555
Auren Energia S.A.		6,978		100.00	%	6,978
Others		1,339,404		32.29% to 100.00	%	662,963
​		7,354,298		​	​	2,958,283

Teles Pires

Disclosure of detailed information about business combination [line items]

Schedule of fair value, at acquisition date, of the consideration transferred in a business combination

​

​	​	​
(a) Fair value of liquid assets acquired by the Company		1,202,264
(b) Consideration transferred		613,155
(c) Fair value of shareholding maintained before combination of businesses		589,109
(d) = (b) + (c)		1,202,264
(d) - (a) Premium		—

Schedule of impact on operations net of tax due to business combination

​

​	​	​
Remeasurement of shareholding previously held		188,274
Disposal of EAPSA		537,663
​		725,937

Baguari

Disclosure of detailed information about business combination [line items]

Schedule of fair value, at acquisition date, of the consideration transferred in a business combination

​

​	​	​
(a) Fair value of liquid assets acquired by the Company		1,029,638
(b) Consideration transferred		875,204
(c) Fair value of shareholding maintained before combination of businesses		154,434
(d) = (b) + (c)		1,029,638
(d) - (a) Premium		—

Retiro Baixo

Disclosure of detailed information about business combination [line items]

Schedule of fair value, at acquisition date, of the consideration transferred in a business combination

​

​	​	​
(a) Fair value of liquid assets acquired by the Company		435,893
(b) Consideration transferred	​	222,306
(c) Fair value of shareholding maintained before combination of businesses	​	213,587
(d) = (b) + (c)	​	435,893

TMT

Disclosure of detailed information about business combination [line items]

Schedule of fair value, at acquisition date, of the consideration transferred in a business combination

​

​	​	​
(a) Fair value of liquid assets acquired by the Company		582,644
(b) Consideration transferred		273,211
(c) Fair value of shareholding maintained before combination of businesses		285,495
(d) = (b) + (c)		558,706
(d) - (a) Premium		23,938

VSB

Disclosure of detailed information about business combination [line items]

Schedule of fair value, at acquisition date, of the consideration transferred in a business combination

​

​	​	​
(a) Fair value of liquid assets acquired by the Company		465,620
(b) Consideration transferred		304,228
(c) Fair value of shareholding maintained before combination of businesses		201,769
(d) = (b) + (c)		505,997
(d) - (a) Premium		40,377

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