SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 6-K/A

(Amendment No.1)

REPORT OF FOREIGN PRIVATE ISSUER

Pursuant to Rule 13a-16 or 15d-16 of

the Securities Exchange Act of 1934

For the Month of April, 2011

KOREA ELECTRIC POWER CORPORATION

(Translation of registrant’s name into English)

167, Samseongdong, Gangnam-gu, Seoul 135-791, Korea

(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  ¨

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):             

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):             

Indicate by check mark whether the registrant by furnishing the

information contained in this form is also thereby furnishing the

information to the Commission pursuant to Rule 12g3-2(b) under the

Securities Exchange Act of 1934.

Yes  ¨             No  x

If “Yes” is marked, indicate below the file number assigned to the

registrant in connection with Rule 12g3-2(b): 82-            .

This Report of Foreign Private Issuer on Form 6-K is deemed filed for all purposes under the Securities Act of 1933, as amended, and the Securities Exchange Act of 1934, as amended.

This amended report on Form 6-K replaces the report on Form 6-K filed with the Commission on April 4, 2011 in its entirety.

Korea Electric Power Corporation (“KEPCO”) hereby announces its audited consolidated statements of financial position, statements of operations, statement of changes in shareholders’ equity and statements of cash flows information for fiscal years 2009 and 2010 as attached hereto.

KOREA ELECTRIC POWER CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF FINANCIAL POSITION

AS OF DECEMBER 31, 2009 AND 2010

	Won						U.S. dollars
	2009			2010			2010
	(In millions)						(In thousands)
Assets
Property, plant and equipment :	(Won)	115,483,190		(Won)	122,262,324		$	108,139,328
Less: accumulated depreciation		(50,183,508	)		(56,099,984	)		(49,619,657	)
Less: accumulated impairment losses		(22,935	)		(13,265	)		(11,733	)
Less: construction grants		(6,152,485	)		(6,993,712	)		(6,185,841	)
		59,124,262			59,155,363			52,322,097
Construction in-progress		14,909,169			19,744,150			17,463,427
Net property, plant and equipment		74,033,431			78,899,513			69,785,524
Investments and other assets:
Long-term investment securities		3,542,283			4,764,710			4,214,320
Long-term loans		584,327			812,232			718,408
Financial derivatives		756,034			375,757			332,352
Intangible assets		682,345			455,822			403,168
Deferred income tax assets		1,689,851			1,145,548			1,013,221
Other non-current assets		890,860			768,316			679,565
Total non-current assets		82,179,131			87,221,898			77,146,558
Current assets:
Cash and cash equivalents		1,489,390			2,097,285			1,855,019
Trade receivables, less allowance for doubtful accounts of (Won) 61,094 million in 2009 and (Won) 30,961 million in 2010		3,189,923			3,695,384			3,268,516
Other accounts receivable, less allowance for doubtful accounts of (Won) 28,380 million in 2009 and (Won) 25,420 million in 2010		1,341,520			1,331,462			1,177,660
Short-term investment securities		10,420			509			450
Short-term financial instruments		356,115			571,310			505,316
Financial derivatives		144,449			100,148			88,580
Inventories		3,894,878			3,479,690			3,077,737
Deferred income tax assets		353,103			786,630			695,763
Other current assets		249,102			326,082			288,415
Total current assets		11,028,900			12,388,500			10,957,456
Total assets	(Won)	93,208,031		(Won)	99,610,398		$	88,104,014

(Continued)

KOREA ELECTRIC POWER CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (CONTINUED)

AS OF DECEMBER 31, 2009 AND 2010

	Won						U.S. dollars
	2009			2010			2010
	(In millions)						(In thousands)
Liabilities and Shareholders’ Equity
Shareholders’ equity:
Common stock of (Won) 5,000 par value authorized 1,200,000,000 shares - Issued and outstanding 641,567,712 shares in 2009 and 2010	(Won)	3,207,839		(Won)	3,207,839		$	2,837,289
Capital surplus		14,668,563			14,764,631			13,059,111
Capital adjustments		(741,587	)		(741,587	)		(655,923	)
Accumulated other comprehensive income		487,211			453,928			401,493
Retained earnings:
Appropriated		23,509,731			23,432,019			20,725,295
Before appropriations		(104,523	)		(98,967	)		(87,535	)
Noncontrolling interest in consolidated subsidiaries		376,573			470,738			416,361
Total shareholders’ equity		41,403,807			41,488,601			36,696,091
Long-term liabilities:
Long-term debt, net		27,840,626			33,089,247			29,266,978
Borrowings under conditional agreements		15,317			18,295			16,182
Long-term other account payable		3,576,369			3,894,914			3,444,998
Accrual for retirement and severance benefits, net		1,772,680			1,688,189			1,493,180
Liability for decommissioning costs		5,695,224			5,976,326			5,285,977
Provision for decontamination of transformer		231,470			278,011			245,897
Reserve for self insurance		121,416			123,098			108,878
Financial derivatives		34,983			209,448			185,254
Deferred income tax liabilities		972,077			990,116			875,744
Other long-term liabilities		796,359			266,769			235,953
Total long-term liabilities		41,056,521			46,534,411			41,159,041
Current liabilities:
Trade payables		1,928,442			2,425,394			2,145,227
Other accounts payable		835,067			621,879			550,043
Short-term borrowings		684,480			457,426			404,587
Current portion of long-term debt, net		5,778,813			6,311,867			5,582,759
Income tax payable		82,844			256,198			226,604
Accrued expense		531,167			605,595			535,640
Financial derivatives		3,023			10,763			9,520
Deferred income tax liabilities		18,023			9,065			8,018
Other current liabilities		885,844			889,199			786,484
Total current liabilities		10,747,703			11,587,386			10,248,882
Total liabilities		51,804,224			58,121,797			51,407,923
Commitments and contingencies
Total shareholders’ equity and liabilities	(Won)	93,208,031		(Won)	99,610,398		$	88,104,014

KOREA ELECTRIC POWER CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS

FOR THE YEARS ENDED DECEMBER 31, 2008, 2009 AND 2010

	Won									U.S. dollars
	2008			2009			2010			2010
	(In millions, except per share amounts)									(In thousands, except per share amounts)
OPERATING REVENUES:
Sale of electricity	(Won)	30,708,544		(Won)	33,091,577		(Won)	37,518,463		$	33,184,560
Other operating revenues		851,556			902,275			1,907,497			1,687,155
		31,560,100			33,993,852			39,425,960			34,871,715
OPERATING EXPENSES:
Power generation, transmission and distribution costs		27,101,532			25,829,287			29,185,920			25,814,541
Purchased power		4,433,889			3,666,468			5,382,428			4,760,683
Other operating costs		1,083,050			1,238,619			1,618,402			1,431,454
Selling and administrative expenses		1,739,702			1,544,656			1,659,057			1,467,413
		34,358,173			32,279,030			37,845,807			33,474,091
OPERATING INCOME (LOSS)		(2,798,073	)		1,714,822			1,580,153			1,397,624
OTHER INCOME (EXPENSES):
Interest income		170,951			113,865			119,477			105,676
Interest expenses		(1,000,773	)		(1,583,863	)		(1,624,824	)		(1,437,134	)
Gain (loss) on foreign currency transactions and translation, net		(1,845,392	)		662,812			119,919			106,066
Donations		(40,112	)		(21,109	)		(30,884	)		(27,316	)
Equity income of affiliates, net		98,611			22,473			75,477			66,758
Gain on disposal of investments, net		4,241			310			4,482			3,964
Impairment loss on investment securities		—			(60,636	)		—			—
Gain (loss) on disposal of property, plant and equipment, net		14,305			38,896			21,921			19,389
Valuation gain (loss) on financial derivatives, net		1,341,887			(357,004	)		(206,084	)		(182,278	)
Loss on early repayment of exchangeable bond		—			(540,593	)		—			—
Other, net		210,752			332,440			377,529			333,919
		(1,045,530	)		(1,392,409	)		(1,142,987	)		(1,010,956	)
INCOME (LOSS) BEFORE INCOME TAX		(3,843,603	)		322,413			437,166			386,668
INCOME TAX EXPENSES (BENEFITS)		(929,564	)		370,145			457,021			404,229
NET INCOME (LOSS)		(2,914,039	)		(47,732	)		(19,855	)		(17,561	)
Controlling interest	(Won)	(2,955,339	)	(Won)	(96,716	)	(Won)	(72,156	)	$	(63,821	)
Noncontrolling interest		41,300			48,984			52,301			46,260
	(Won)	(2,914,039	)	(Won)	(47,732	)	(Won)	(19,855	)	$	(17,561	)
BASIC EARNINGS (LOSS) PER SHARE	(Won)	(4,746	)	(Won)	(155	)	(Won)	(116	)	$	(0.103	)
DILUTED EARNINGS (LOSS) PER SHARE	(Won)	(4,746	)	(Won)	(155	)	(Won)	(116	)	$	(0.103	)

KOREA ELECTRIC POWER CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS’ EQUITY

FOR THE YEARS ENDED DECEMBER 31, 2008, 2009 AND 2010

	Common stock		Capital surplus			Capital adjustments			Accumulated other comprehensive income			Retained earnings			Minority interests		Total
Balances at January 1, 2008	(Won)	3,207,839	(Won)	14,558,256		(Won)	(741,825	)	(Won)	83,915		(Won)	26,924,227		(Won)	234,441	(Won)	44,266,853
Net income (loss)		—		—			—			—			(2,955,339	)		41,300		(2,914,039	)
Dividends declared		—		—			—			—			(466,964	)		—		(466,964	)
Exercise of conversion right		—		(61	)		—			—			—			—		(61	)
Gain on disposal of subsidiary’s securities		—		148			—			—			—			—		148
Gain on disposal of treasury stock, net of tax		—		188			—			—			—			—		188
Changes in treasury stock		—		—			336			—			—			—		336
Changes in unrealized losses on available-for-sale securities		—		—			—			(8,274	)		—			—		(8,274	)
Equity in other comprehensive income of affiliates		—		—			—			205,359			—			—		205,359
Changes in translation adjustments of foreign subsidiaries		—		—			—			45,266			—			—		45,266
Changes in valuation of derivatives		—		—			—			108,798			—			—		108,798
Changes in minority interests		—		—			—			—			—			37,204		37,204
Balance at December 31, 2008		3,207,839		14,558,531			(741,489	)		435,064			23,501,924			312,945		41,274,814
Net income (loss)		—		—			—			—			(96,716	)		48,984		(47,732	)
Changes in discount on stock issuance		—		—			(98	)		—			—			—		(98	)
Changes in other capital surplus		—		110,032			—			—			—			—		110,032
Changes in unrealized losses on available-for-sale securities		—		—			—			18,086			—			—		18,086
Equity in other comprehensive income of affiliates		—		—			—			107,968			—			—		107,968
Changes in translation adjustments of foreign subsidiaries		—		—			—			(31,303	)		—			—		(31,303	)
Changes in valuation of derivatives		—		—			—			(42,604	)		—			—		(42,604	)
Changes in minority interests		—		—			—			—			—			14,644		14,644
Balances at December 31, 2009		3,207,839		14,668,563			(741,587	)		487,211			23,405,208			376,573		41,403,807

KOREA ELECTRIC POWER CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS’ EQUITY (CONTINUED)

FOR THE YEARS ENDED DECEMBER 31, 2008, 2009 AND 2010

	Common stock		Capital surplus			Capital adjustments			Accumulated other comprehensive income			Retained earnings			Minority interests		Total
Net income (loss)		—		—			—			—			(72,156	)		52,301		(19,855	)
Gain on disposal of subsidiary’s securities		—		96,101			—			—			—			—		96,101
Changes in other capital surplus		—		(33	)		—			—			—			—		(33	)
Changes in unrealized losses on available-for-sale securities		—		—			—			1,407			—			—		1,407
Equity in other comprehensive income of affiliates		—		—			—			(13,400	)		—			—		(13,400	)
Changes in translation adjustments of foreign subsidiaries		—		—			—			17,168			—			—		17,168
Changes in valuation of derivatives		—		—			—			(38,458	)		—			—		(38,458	)
Changes in minority interests		—		—			—			—			—			41,864		41,864
Balances at December 31, 2010	(Won)	3,207,839	(Won)	14,764,631		(Won)	(741,587	)	(Won)	453,928		(Won)	23,333,052		(Won)	470,738	(Won)	41,488,601
U.S. dollars (In thousands)	$	2,837,289	$	13,059,111		$	(655,923	)	$	401,493		$	20,637,760		$	416,361	$	36,696,091

KOREA ELECTRIC POWER CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS

FOR THE YEARS ENDED DECEMBER 31, 2008, 2009 AND 2010

	Won									U.S. dollars (Note2)
	2008			2009			2010			2010
	(In millions)									(In thousands)
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	(Won)	(2,914,039	)	(Won)	(47,732	)	(Won)	(19,855	)	$	(17,561	)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		6,233,033			6,318,534			6,415,199			5,674,154
Property, plant and equipment removal loss		302,288			276,724			266,889			236,060
Provision for severance and retirement benefits		483,909			238,001			423,221			374,333
Provision for decommissioning costs, net		379,281			223,387			234,528			207,437
Provision for decontamination of Transformer, net		13,016			16,222			15,022			13,287
Bad debt expense		20,616			28,397			2,217			1,961
Amortization of discount on debentures Issued and long-term loans, net		38,735			197,217			182,624			161,528
Loss (gain) on foreign currency translation, net		1,586,241			(659,151	)		(91,187	)		(80,654	)
Equity income of affiliates, net		(98,611	)		(22,473	)		(75,477	)		(66,758	)
Impairment loss on investment securities		—			60,636			—			—
Gain on disposal of property, plant and equipment, net		(14,305	)		(38,896	)		(21,921	)		(19,389	)
Gain on disposal of investment assets, net		—			—			(4,482	)		(3,964	)
Deferred income tax expense, net		(1,540,780	)		282,931			119,858			106,013
Valuation loss (gain) on financial derivatives		(1,341,887	)		357,004			206,084			182,278
Transaction loss on financial derivatives		154,114			(42,856	)		(3,456	)		(3,057	)
Loss on early repayment of exchangeable bond		—			540,593			—			—
Other losses (gains), net		(135,364	)		38,859			87,195			77,122
Changes in assets and liabilities:
Trade receivables		(216,627	)		(452,910	)		(494,690	)		(437,546	)
Other accounts receivable		(176,891	)		229,266			13,271			11,738
Inventories		(1,779,959	)		(672,328	)		(842,584	)		(745,254	)
Investments under the equity method		33,102			28,973			35,574			31,465
Other current assets		55,700			6,610			(76,684	)		(67,826	)
Trade payables		773,558			(315,952	)		513,145			453,870
Other accounts payable		69,415			(33,951	)		(302,523	)		(267,577	)
Income tax payable		(14,157	)		(387,739	)		173,832			153,752
Accrued expense		41,973			(9,150	)		85,695			75,795
Other current liabilities		83,130			58,274			(4,437	)		(3,924	)
Payment of severance and retirement benefits, net		(78,204	)		(173,430	)		(579,624	)		(512,669	)
Payment of decommissioning costs		(8,791	)		(254,287	)		(275,238	)		(243,444	)
Payment of other provision		(54,238	)		(114,793	)		(91,608	)		(81,026	)
Other, net		67,032			62,511			(252,425	)		(223,267	)
Net cash provided by operating activities		1,961,290			5,738,491			5,638,163			4,986,877

(Continued)

KOREA ELECTRIC POWER CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS

FOR THE YEARS ENDED DECEMBER 31, 2008, 2009 AND 2010 (CONTINUED)

	Won									U.S. dollars (Note2)
	2008			2009			2010			2010
	(In millions)									(In thousands)
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from disposal of property, plant and equipment	(Won)	47,669		(Won)	232,274		(Won)	100,766			89,126
Additions to property, plant and equipment		(8,924,622	)		(11,243,965	)		(10,813,733	)		(9,564,597	)
Receipt of construction grants		1,141,724			1,197,173			1,293,347			1,143,947
Proceeds from disposal of investment securities		71,308			119			1,210			1,070
Acquisition of investment securities		(164,014	)		(752,164	)		(1,155,326	)		(1,021,870	)
Increase in long-term loans, net		(177,278	)		(2,628	)		(302,684	)		(267,720	)
Acquisition of intangible assets		(360,604	)		(249,677	)		(59,437	)		(52,571	)
Increase (decrease) in other non-current assets		(157,363	)		(330,207	)		214,290			189,537
Increase (decrease ) in short-term financial instruments, net		1,357,132			97,787			(205,340	)		(181,620	)
Decrease in current portion of long-term loans, net		23,095			39,616			38,227			33,811
Net cash used in investing activities		(7,142,953	)		(11,011,672	)		(10,888,680	)		(9,630,887	)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from long-term debt		9,887,176			11,821,305			11,511,316			10,181,599
Proceeds from borrowings under conditional agreements		3,032			3,447			2,041			1,805
Repayment of long-term debt		(4,681,712	)		(5,964,054	)		(5,790,266	)		(5,121,410	)
Proceed from short-term borrowings, net		509,670			(594,340	)		(207,492	)		(183,524	)
Proceeds from treasury stock, net		—			—			—			—
Dividends paid		(492,286	)		(45,920	)		(32,498	)		(28,744	)
Settlement of financial derivatives		(211,688	)		37,056			316,173			279,651
Other, net		11,023			35,772			53,062			46,933
Net cash provided by financing activities		5,025,215			5,293,266			5,852,336			5,176,310
INCREASE (DECREASE) FROM CHANGES IN CONSOLIDATED SUBSIDIARIES		(4,689	)		661			10,586			9,363
CHANGE IN CASH AND CASH EQUIVALENTS FROM THE TRANSLATION OF FOREIGN SUBSIDIARIES		39,094			16,358			(4,510	)		(3,989	)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS		(122,043	)		37,104			607,895			537,674
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR		1,574,329			1,452,286			1,489,390			1,317,345
CASH AND CASH EQUIVALENTS, END OF YEAR	(Won)	1,452,286		(Won)	1,489,390		(Won)	2,097,285		$	1,855,019

Details regarding the information above will be provided in a future filing on Form 20-F for fiscal year 2010 to be filed prior to June 30, 2011.

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.

By:	/s/ Kim, Jung-in
Name:	Kim, Jung-in
Title:	General Manager

Date: April 6, 2011