Appendix 6 Additional Information Oficio Circular (Official Bulletin) No. 715 of February 3, 2012 (Tables)

12 Months Ended

Dec. 31, 2017

Trade And Other Receivables [Abstract]

Summary of Aging of Trade and Other Receivables

•

Trade and other receivables by aging:

	As of December 31, 2017
	Current Portfolio			1-30 days			31-60 days			61-90 days			91-120 days			121-150 days			151-180 days			181-210 days			211-250 days			More than 251 days			Total Current			Total Non-Current
Trade and Other Receivables	ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$
Trade receivables, gross		291,417,828			33,630,393			17,506,620			3,996,144			2,189,405			4,565,337			2,861,581			2,470,973			1,796,958			54,604,283			415,039,522			1,917,828
Allowance for doubtful accounts		(89,762	)		(231,131	)		(213,455	)		(200,097	)		(223,821	)		(176,789	)		(207,518	)		(914,480	)		(133,045	)		(32,270,098	)		(34,660,196	)		—
Other receivables, gross		39,372,960			—			—			—			—			—			—			—			—			9,213,863			48,586,823			34,264,571
Allowance for doubtful accounts		—			—			—			—			—			—			—			—			—			(9,213,863	)		(9,213,863	)		—
Total		330,701,026			33,399,262			17,293,165			3,796,047			1,965,584			4,388,548			2,654,063			1,556,493			1,663,913			22,334,185			419,752,286			36,182,399


	As of December 31, 2016
	Current Portfolio			1-30 days			31-60 days			61-90 days			91-120 days			121-150 days			151-180 days			181-210 days			211-250 days			More than 251 days			Total Current			Total Non-Current
Trade and Other Receivables	ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$
Trade receivables, gross		280,408,709			34,119,100			14,480,516			4,262,852			2,265,532			5,983,874			2,940,939			2,126,283			4,246,731			63,349,580			414,184,116			8,369,878
Allowance for doubtful accounts		(157,009	)		(221,810	)		(212,406	)		(168,457	)		(109,571	)		(110,910	)		(174,725	)		(766,217	)		(103,001	)		(29,672,710	)		(31,696,816	)		—
Other receivables, gross		62,584,556			—			—			—			—			—			—			—			—			7,765,064			70,349,620			25,130,227
Allowance for doubtful accounts		—			—			—			—			—			—			—			—			—			(7,765,064	)		(7,765,064	)		—
Total		342,836,256			33,897,290			14,268,110			4,094,395			2,155,961			5,872,964			2,766,214			1,360,066			4,143,730			33,676,870			445,071,856			33,500,105

Summary of Trade and Other Receivables by Type of Portfolio

•

By type of portfolio:

	December 31, 2017												December 31, 2016
	Non-renegotiated Portfolio				Renegotiated Portfolio				Total Gross Portfolio				Non-renegotiated Portfolio				Renegotiated Portfolio				Total Gross Portfolio
	Number of Customers		Gross Amount		Number of Customers		Gross Amount		Number of Customers		Gross Amount		Number of Customers		Gross Amount		Number of Customers		Gross Amount			Number of Customers		Gross Amount
Aging of balances			ThCh$				ThCh$				ThCh$				ThCh$				ThCh$					ThCh$
Current		1,145,472		288,681,858		52,679		4,653,798		1,198,151		293,335,656		1,157,940		281,705,071		60,278		5,850,339			1,218,218		287,555,410
1 to 30 days		451,929		30,202,328		22,869		3,428,065		474,798		33,630,393		414,617		30,167,962		22,459		3,951,138			437,076		34,119,100
31 to 60 days		133,114		15,573,493		8,780		1,933,127		141,894		17,506,620		107,539		12,724,070		8,312		1,756,446			115,851		14,480,516
61 to 90 days		22,305		3,228,258		2,795		767,886		25,100		3,996,144		18,344		3,813,933		2,128		448,919			20,472		4,262,852
91 to 120 days		9,505		1,817,086		1,422		372,319		10,927		2,189,405		8,987		1,978,892		1,049		286,640			10,036		2,265,532
121 to 150 days		7,118		4,216,619		1,093		348,718		8,211		4,565,337		5,866		5,753,020		656		230,854			6,522		5,983,874
151 to 180 days		5,333		2,526,954		699		334,627		6,032		2,861,581		4,671		2,415,755		442		525,184			5,113		2,940,939
181 to 210 days		10,103		2,127,005		446		343,968		10,549		2,470,973		20,001		2,016,444		275		109,839			20,276		2,126,283
211 to 250 days		3,979		1,599,571		394		197,387		4,373		1,796,958		3,535		4,163,062		217		83,669			3,752		4,246,731
More than 251 days		125,590		48,307,224		5,593		6,297,059		131,183		54,604,283		123,301		60,447,048		3,613		4,125,709			126,914		64,572,757
Total		1,914,448		398,280,396		96,770		18,676,954		2,011,218		416,957,350		1,864,801		405,185,257		99,429		17,368,737			1,964,230		422,553,994

Summary of Portfolio in Default and in Legal Collection Process of Notes Receivable

Portfolio in default and in legal collection process

	As of December 31,
	2017				2016
	Number of		Amount		Number of		Amount
Portfolio in Default and in Legal Collection Process	Customers		ThCh$		Customers		ThCh$
Notes receivable in default		1,902		259,560		1,949		262,912
Notes receivable in legal collection process (*)		2,744		6,041,670		3,608		7,049,869
Total		4,646		6,301,230		5,557		7,312,781

(*)

Legal collections are included in the portfolio in arrears.

Summary of Provisions and Write-offs Portfolio

Provisions and write-offs

	As of December 31,
	2017		2016
Provisions and Write-offs	ThCh$		ThCh$
Provision for non-renegotiated portfolio		7,928,877		4,919,244
Provision for renegotiated portfolio		8,940		(746,953	)
Total		7,937,817		4,172,291

Summary of Number and Value of Operations

Number and value of operations

December 31, 2017

December 31, 2016

Total detail by

type of operation

Total detail by

type of operation

Total detail by

type of operation

Total detail by

type of operation

Number and Value of Operations

Last Quarter

Year-to-date

Last Quarter

Year-to-date

Impairment provisions and recoveries:

Number of operations

5,376

46,484

11,092

1,949,771

Value of operations, in ThCh$

4,058,212

7,937,817

74,563

4,172,291

Trade Receivables by Aging

•

Trade receivables by aging:

	December 31, 2017
	Current Portfolio			1-30 days			31-60 days			61-90 days			91-120 days			121-150 days			151-180 days			181-210 days			211-250 days			More than 251 days			More than 365 days			Total Current			Total Non- Current
Trade and other current receivables	ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$
Trade receivables, generation		186,769,753			3,057,994			333,079			279,100			10,021			42,015			334,298			399,552			228,498			1,596,976			2,519,064			195,570,350			62,563
- Large customers		186,724,468			3,057,994			333,079			279,100			10,021			42,015			334,298			399,552			228,498			1,596,976			2,519,064			195,525,065		-
- Institutional customers	-				—			—			—			—		-			-			-			-			-			-			-			-
- Others		45,285			—			—			—			—		-			-			-			-			-			-				45,285			62,563
Allowance for doubtful accounts	-				—			—			—			—		-			-			-			-				(1,103,086	)		(155,731	)		(1,258,817	)	-

Unbilled services		138,781,170			—			—			—			—			—			—			—			—			—			—			138,781,170			—
Services billed		47,988,583			3,057,994			333,079			279,100			10,021			42,015			334,298			399,552			228,498			1,596,976			2,519,064			56,789,180			62,563

Trade receivables, distribution		104,648,075			30,572,399			17,173,541			3,717,044			2,179,384			4,523,322			2,527,283			2,071,421			1,568,460			4,286,717			46,201,526			219,469,172			1,855,265
- Mass-market customers		84,591,816			22,148,005			10,699,951			2,264,627			1,657,978			1,231,644			918,357			1,700,605			567,152			1,808,646			25,341,852			152,930,633			1,781,421
- Large customers		17,771,942			6,565,888			4,987,871			940,754			168,838			1,809,919			357,379			30,481			7,237			1,295,122			12,333,224			46,268,655			—
- Institutional customers		2,284,317			1,858,506			1,485,719			511,663			352,568			1,481,759			1,251,547			340,335			994,071			1,182,949			8,526,450			20,269,884			73,844
Allowance for doubtful accounts		(89,762	)		(231,131	)		(213,455	)		(200,097	)		(223,821	)		(176,789	)		(207,518	)		(914,480	)		(133,045	)		(877,621	)		(30,133,660	)		(33,401,379	)		—

Unbilled services		77,733,438			—			—			—			—			—			—			—			—			—			—			77,733,438			—
Services billed		26,914,637			30,572,399			17,173,541			3,717,044			2,179,384			4,523,322			2,527,283			2,071,421			1,568,460			4,286,717			46,201,526			141,735,734			1,855,265

Total Trade Receivables, Gross		291,417,828			33,630,393			17,506,620			3,996,144			2,189,405			4,565,337			2,861,581			2,470,973			1,796,958			5,883,693			48,720,590			415,039,522			1,917,828
Total Allowance for Doubtful Accounts		(89,762	)		(231,131	)		(213,455	)		(200,097	)		(223,821	)		(176,789	)		(207,518	)		(914,480	)		(133,045	)		(1,980,707	)		(30,289,391	)		(34,660,196	)		—

Total Trade Receivables, Net		291,328,066			33,399,262			17,293,165			3,796,047			1,965,584			4,388,548			2,654,063			1,556,493			1,663,913			3,902,986			18,431,199			380,379,326			1,917,828

	December 31, 2016
	Current Portfolio			1-30 days			31-60 days			61-90 days			91-120 days			121-150 days			151-180 days			181-210 days			211-250 days			More than 251 days			More than 365 days			Total Current			Total Non- Current
Trade and other current receivables	ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$			ThCh$
Trade receivables, generation		179,498,353			2,770,582			1,165,177			773,502			900,093			5,101,117			13,609			553,986			3,593,733			9,600,268			10,508,696			214,479,116			5,751,509
- Large customers		179,482,501			2,770,582			1,165,177			773,502			900,093			5,101,117			13,609			553,986			3,593,733			9,600,268			10,508,696			214,463,264			5,723,942
- Institutional customers		—			—			—			—			—			—			—			—			—			—			—			—			—
- Others		15,852			—			—			—			—			—			—			—			—			—			—			15,852			27,567
Allowance for doubtful accounts		—			—			—			—			—			—			—			—			—			(1,314,310	)		—			(1,314,310	)		—

Unbilled services		125,367,509			—			—			—			—			—			—			—			—			—			—			125,367,509			3,308,454
Services billed		54,130,844			2,770,582			1,165,177			773,502			900,093			5,101,117			13,609			553,986			3,593,733			9,600,268			10,508,696			89,111,607			2,443,055

Trade receivables, distribution		100,910,356			31,348,518			13,315,339			3,489,350			1,365,439			882,757			2,927,330			1,572,297			652,998			2,667,650			40,572,966			199,705,000			2,618,369
- Mass-market customers		74,735,718			23,318,881			9,558,288			1,981,025			862,071			615,659			534,796			779,941			347,398			1,202,738			23,490,230			137,426,745			2,164,930
- Large customers		23,586,354			6,566,919			2,148,243			1,231,708			209,825			172,851			1,174,012			46,128			2,424			766,851			10,154,924			46,060,239			34,602
- Institutional customers		2,588,284			1,462,718			1,608,808			276,617			293,543			94,247			1,218,522			746,228			303,176			698,061			6,927,812			16,218,016			418,837
Allowance for doubtful accounts		(157,009	)		(221,810	)		(212,406	)		(168,457	)		(109,571	)		(110,910	)		(174,725	)		(766,217	)		(103,001	)		(614,954	)		(27,743,446	)		(30,382,506	)		—

Unbilled services		61,742,593			—			—			—			—			—			—			—			—			—			—			61,742,593			149,508
Services billed		39,167,763			31,348,518			13,315,339			3,489,350			1,365,439			882,757			2,927,330			1,572,297			652,998			2,667,650			40,572,966			137,962,407			2,465,400

Total Trade Receivables, Gross		280,408,709			34,119,100			14,480,516			4,262,852			2,265,532			5,983,874			2,940,939			2,126,283			4,246,731			12,267,918			51,081,662			414,184,116			8,369,878
Total Allowance for Doubtful Accounts		(157,009	)		(221,810	)		(212,406	)		(168,457	)		(109,571	)		(110,910	)		(174,725	)		(766,217	)		(103,001	)		(1,929,264	)		(27,743,446	)		(31,696,816	)		—

Total Trade Receivables, Net		280,251,700			33,897,290			14,268,110			4,094,395			2,155,961			5,872,964			2,766,214			1,360,066			4,143,730			10,338,654			23,338,216			382,487,300			8,369,878

Trade Receivables by Type of Portfolio

•

By type of portfolio:

	December 31, 2017
	Current Portfolio		1-30 days		31-60 days		61-90 days		91-120 days		121-150 days		151-180 days		181-210 days		211-250 days		More than 251 days		Total Current Gross Portfolio		Total Non-Current Gross Portfolio
Type of Portfolio	ThCh$		ThCh$		ThCh$		ThCh$		ThCh$		ThCh$		ThCh$		ThCh$		ThCh$		ThCh$		ThCh$		ThCh$
GENERATION
Non-renegotiated portfolio		186,724,468		3,057,994		333,079		279,100		10,021		42,015		334,298		399,552		228,498		4,116,040		195,525,065		—
- Large customers		186,724,468		3,057,994		333,079		279,100		10,021		42,015		334,298		399,552		228,498		4,116,040		195,525,065		—
- Institutional customers		—		—		—		—		—		—		—		—		—		—		—		—
- Others		—		—		—		—		—		—		—		—		—		—		—		—
Renegotiated portfolio		45,285		—		—		—		—		—		—		—		—		—		45,285		62,563
- Large customers		—		—		—		—		—		—		—		—		—		—		—		—
- Institutional customers		—		—		—		—		—		—		—		—		—		—		—		—
- Others		45,285		—		—		—		—		—		—		—		—		—		45,285		62,563
DISTRIBUTION
Non-renegotiated portfolio		101,580,927		27,144,334		15,240,414		2,949,158		1,807,065		4,174,604		2,192,656		1,727,453		1,371,073		44,191,184		202,378,868		376,463
- Mass-market customers		81,786,896		19,120,060		9,323,291		1,705,992		1,285,659		882,926		671,894		1,554,175		423,730		20,987,147		137,741,770		342,063
- Large customers		17,522,970		6,565,888		4,590,254		940,754		168,838		1,809,919		357,379		30,481		7,237		13,521,914		45,515,634		—
- Institutional customers		2,271,061		1,458,386		1,326,869		302,412		352,568		1,481,759		1,163,383		142,797		940,106		9,682,123		19,121,464		34,400
Renegotiated portfolio		3,067,148		3,428,065		1,933,127		767,886		372,319		348,718		334,627		343,968		197,387		6,297,059		17,090,304		1,478,802
- Mass-market customers		2,804,920		3,027,945		1,376,659		558,635		372,319		348,718		246,463		146,430		143,422		6,163,350		15,188,861		1,439,358
- Large Customers		248,972		—		397,617		—		—		—		—		—		—		106,433		753,022		—
- Institutional Customers		13,256		400,120		158,851		209,251		—		—		88,164		197,538		53,965		27,276		1,148,421		39,444

Total Gross Portfolio		291,372,543		33,630,393		17,506,620		3,996,144		2,189,405		4,565,337		2,861,581		2,470,973		1,796,958		54,604,283		415,039,522		1,917,828

	December 31, 2016
	Current Portfolio		1-30 days		31-60 days		61-90 days		91-120 days		121-150 days		151-180 days		181-210 days		211-250 days		More than 251 days		Total Current Gross Portfolio		Total Non-Current Gross Portfolio
Type of Portfolio	ThCh$		ThCh$		ThCh$		ThCh$		ThCh$		ThCh$		ThCh$		ThCh$		ThCh$		ThCh$		ThCh$		ThCh$
GENERATION
Non-renegotiated portfolio		179,498,353		2,770,582		1,165,177		773,502		900,093		5,101,117		13,609		553,986		3,593,733		20,108,963		214,479,115		5,751,509
- Large customers		179,482,501		2,770,582		1,165,177		773,502		900,093		5,101,117		13,609		553,986		3,593,733		20,108,963		214,463,263		5,723,942
- Institutional customers		—		—		—		—		—		—		—		—		—		—		—		—
- Others		15,852		—		—		—		—		—		—		—		—		—		15,852		27,567
Renegotiated portfolio		—		—		—		—		—		—		—		—		—		—		—		—
- Large customers		—		—		—		—		—		—		—		—		—		—		—		—
- Institutional customers		—		—		—		—		—		—		—		—		—		—		—		—
- Others		—		—		—		—		—		—		—		—		—		—		—		—
DISTRIBUTION
Non-renegotiated portfolio		96,922,455		27,397,380		11,558,893		3,040,431		1,078,799		651,903		2,402,146		1,462,458		569,329		39,114,907		184,198,701		755,931
- Mass-market customers		71,334,454		20,155,266		8,134,561		1,532,106		575,781		410,789		377,710		670,102		265,574		20,582,480		124,038,823		721,329
- Large customers		23,376,286		6,499,554		2,148,243		1,231,708		209,825		146,867		1,174,012		46,128		2,424		10,921,775		45,756,822		34,602
- Institutional customers		2,211,715		742,560		1,276,089		276,617		293,193		94,247		850,424		746,228		301,331		7,610,652		14,403,056		—
Renegotiated portfolio		3,987,901		3,951,138		1,756,446		448,919		286,640		230,854		525,184		109,839		83,669		4,125,709		15,506,299		1,862,438
- Mass-market customers		3,401,264		3,163,614		1,423,727		448,919		286,290		204,870		157,086		109,839		81,824		4,110,488		13,387,921		1,443,601
- Large Customers		210,068		67,366		—		—		—		25,984		—		—		—		—		303,418		—
- Institutional Customers		376,569		720,158		332,719		—		350		—		368,098		—		1,845		15,221		1,814,960		418,837

Total Gross Portfolio		280,408,709		34,119,100		14,480,516		4,262,852		2,265,532		5,983,874		2,940,939		2,126,283		4,246,731		63,349,579		414,184,115		8,369,878

Summary of Estimated Sales and Purchases of Energy and Capacity

This appendix forms an integral part of the Group’s consolidated financial statements.

	12-31-2017				12-31-2016
	Energy and Tolls		Capacity		Energy and Tolls		Capacity
STATEMENT OF FINANCIAL POSITION	ThCh$		ThCh$		ThCh$		ThCh$
Current accounts receivable from related companies		5,518,711		466,031		590,636		21,774
Trade and other current receivables		177,886,960		48,122,678		168,833,728		23,276,222
Total Estimated Assets		183,405,671		48,588,709		169,424,364		23,297,996
Current accounts payable to related companies		21,818,299		177,839		13,459,812		191,936
Trade and other current payables		120,451,406		47,893,119		85,425,025		42,571,883
Total Estimated Liabilities		142,269,705		48,070,958		98,884,837		42,763,819

	12-31-2017				12-31-2016				12-31-2015
	Energy and Tolls		Capacity		Energy and Tolls		Capacity		Energy and Tolls		Capacity
INCOME STATEMENT	ThCh$		ThCh$		ThCh$		ThCh$		ThCh$		ThCh$
Energy Sales		183,405,671		48,588,709		169,424,364		23,297,996		216,908,877		34,686,488
Energy Purchases		142,269,706		48,070,958		98,884,837		42,763,819		101,922,626		43,935,488