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Segment, Geographic and Other Information (Tables)
 12 Months Ended
Dec. 31, 2019
Segment, Geographic and Other Information [Abstract]  
Segment determination and explanation of the measurements

Segment determination and explanation of the measurements

The Company’s operating segments are its business components that generate discrete financial information that is reported to and regularly reviewed by the Company’s the chief operating decision maker, the Chief Executive Officer, for the purpose of resource allocation and assessment of segment performance. The Company’s reportable segments are ‘Transmission and distribution’, ‘Electric power generation (Nuclear)’, ‘Electric power generation (Non-nuclear)’, ‘Plant maintenance & engineering service’ and ‘Others’; others mainly represent the business unit that manages the Company’s foreign operations.

Segment operating profit (loss) is determined the same way that consolidated operating profit is determined under IFRS without any adjustment for corporate allocations. The accounting policies used by each segment are consistent with the accounting policies used in the preparation of the consolidated financial statements. Segment assets and liabilities are determined based on separate financial statements of the entities instead of on a consolidated basis. There are various transactions between the reportable segments, including sales of property, plant and equipment and so on, that are conducted on an arm’s-length basis at market prices that would be applicable to an independent third party. For subsidiaries which are in a different segment from that of its immediate parent company, their carrying amount in separate financial statements is eliminated in the consolidating adjustments in the tables below. In addition, consolidation adjustments in the table below include adjustments of the amount of investment in associates and joint ventures from the cost basis amount reflected in segment assets to that determined using equity method in the consolidated financial statements.
Financial information of the segments

Financial information of the segments for the years ended December 31, 2017, 2018 and 2019, respectively, are as follows:

 

          2017  

Segment

         Total
segment
revenue		     Intersegment
revenue		     Revenue
from
external
customers		     Depreciation
and
amortization		     Interest
income		     Interest
expense		     Profit (loss)
related to
associates
and joint
ventures		     Employee
benefit
expense		     Loss on
abandonment
of property,
plant, and
equipment		     Increase in
provisions, net		           Operating
profit (loss)		  
          In millions of won  

Transmission and distribution

   ￦       59,486,766       2,044,160       57,442,606       3,466,410       49,987       737,971       (105,166 )      158,738       384,595       885,195         1,902,634  

Electric power generation (Nuclear)

       9,415,752       9,359,468       56,284       3,267,510       21,034       487,503       3,637       80,809       —         801,800         1,347,794  

Electric power generation (Non-nuclear)

       22,795,816       21,885,251       910,565       2,954,375       18,860       486,176       (6,718 )      94,075       39,335       171,457         1,523,497  

Plant maintenance & engineering service

       2,621,440       2,211,716       409,724       109,001       10,801       2,967       (70 )      87,344       161       219,382         265,593  

Others

       655,062       138,352       516,710       36,001       130,003       103,782       —         861       —         (967 )        113,296  

Consolidation adjustments

       (35,638,947 )      (35,638,947 )      —         (59,586 )      (24,542 )      (28,847 )      —         (30,467 )      —         (386,747 )        167,055  
   

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

      

 

 

  
  ￦       59,335,889       —         59,335,889       9,773,711       206,143       1,789,552       (108,317 )      391,360       424,091       1,690,120         5,319,869  
   

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

      

 

 

  

Finance income

                             1,530,618  
                         

 

 

  

Finance expense

                             (3,127,952 ) 
                         

 

 

  

Loss related to associates and joint ventures

                             (108,317 ) 
                         

 

 

  

Profit before income tax

                         ￦       3,614,218  
                         

 

 

  

 

          2018  

Segment

         Total
segment
revenue		     Intersegment
revenue		     Revenue
from
external
customers		     Depreciation
and
amortization		     Interest
income		     Interest
expense		     Profitrelated
to
associates
and joint
ventures		     Employee
benefit
expense		     Loss on
abandonment
of property,
plant, and
equipment		     Increase in
provisions, net		           Operating
profit (loss)		  
          In millions of won  

Transmission and distribution

   ￦       59,676,952       1,393,120       58,283,832       3,555,158       77,925       708,329       287,268       144,180       424,774       580,931         (1,814,363 ) 

Electric power generation (Nuclear)

       8,858,717       8,833,787       24,930       3,088,019       30,422       503,161       9,946       76,467       38,886       520,167         357,401  

Electric power generation (Non-nuclear)

       25,204,085       24,389,816       814,269       3,269,023       29,313       577,441       58,993       91,140       17,516       (227,234 )        482,418  

Plant maintenance & engineering service

       2,526,126       2,170,959       355,167       114,030       12,505       4,126       1,956       77,526       —         174,785         314,755  

Others

       996,300       441,436       554,864       55,513       117,878       119,037       —         1,742       —         356         102,421  

Consolidation adjustments

       (37,229,118 )      (37,229,118 )      —         (56,949 )      (44,276 )      (43,636 )      —         (30,480 )      —         7,989         (127,741 ) 
   

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

      

 

 

  
  ￦       60,033,062       —         60,033,062       10,024,794       223,767       1,868,458       358,163       360,575       481,176       1,056,994         (685,109 ) 
   

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

      

 

 

  
Finance income                             796,870  
                         

 

 

  
Finance expense                             (2,470,743 ) 
                         

 

 

  

Gain related to associates and joint ventures

                             358,163  
                         

 

 

  
Loss before income tax                         ￦       (2,000,819 ) 
                         

 

 

  

 

          2019  

Segment

         Total
segment
revenue		     Intersegment
revenue		     Revenue
from
external
customers		     Depreciation
and
amortization		     Interest
income		     Interest
expense		     Profit/(loss)
related to
associates
and joint
ventures		     Employee
benefit
expense		     Loss on
abandonment
of property,
plant, and
equipment		     Increase in
provisions, net		           Operating
profit (loss)		  
          In millions of won  

Transmission and distribution

   ￦       58,328,372       1,336,725       56,991,647       3,814,428       73,478       777,120       140,757       298,144       350,865       987,828         (2,568,529 ) 

Electric power generation (Nuclear)

       8,937,026       8,908,803       28,223       3,227,695       37,277       511,864       (5,497 )      132,283       —         672,134         782,511  

Electric power generation (Non-nuclear)

       24,254,957       23,472,153       782,804       3,955,333       35,626       655,466       77,641       163,626       13,364       766,407         551,287  

Plant maintenance & engineering service

       2,627,539       2,254,841       372,698       125,546       14,214       2,861       1,237       124,745       —         124,242         312,341  

Others

       1,049,324       656,614       392,710       127,364       141,262       134,248       —         18,409       4       2,408         (489,585 ) 

Consolidation adjustments

       (36,629,136 )      (36,629,136 )      —         (121,626 )      (33,739 )      (34,748 )      —         (12,087 )      —         (251,804 )        (295,552 ) 
   

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

      

 

 

  
  ￦       58,568,082       —         58,568,082       11,128,740       268,118       2,046,811       214,138       725,120       364,233       2,301,215         (1,707,527 ) 
   

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

      

 

 

  

Finance income

                             1,009,706  
                         

 

 

  

Finance expense

                             (2,782,156 ) 
                         

 

 

  

Gain related to associates and joint ventures

                             214,139  
                         

 

 

  

Loss before income tax

                         ￦       (3,265,838 ) 
                         

 

 

  

 
Information related to segment assets and liabilities

Information related to segment assets and segment liabilities as of and for the years ended December 31, 2018 and 2019 are as follows:

 

           2018  

Segment

          Segment
assets		     Investments
in associates
and joint
ventures		      Acquisition of
non-current
assets		     Segment
liabilities		  
           In millions of won  

Transmission and distribution

   ￦        107,486,379       3,671,897        6,323,504       53,404,610  

Electric power generation (Nuclear)

        55,792,704       43,038        2,187,077       30,484,104  

Electric power generation (Non-nuclear)

        49,296,392       2,114,203        3,435,222       27,558,156  

Plant maintenance & engineering service

        3,431,068       49,207        111,393       1,200,390  

Others

        7,816,885       —          382,978       3,165,286  
    

 

 

    

 

 

     

 

 

    

 

 

  

Segment totals

        223,823,428       5,878,345        12,440,174       115,812,546  
    

 

 

    

 

 

     

 

 

    

 

 

  

Consolidation adjustments:

            

Elimination of inter-segment amounts

        (41,026,970 )      —          (62,717 )      (5,055,737 ) 

Equity method adjustment

        964,234       —          —         —    

Deferred taxes

        2,131       —          —         (621 ) 

Others

        1,486,238       —          —         3,400,111  
    

 

 

    

 

 

     

 

 

    

 

 

  
       (38,574,367 )      —          (62,717 )      (1,656,247 ) 
    

 

 

    

 

 

     

 

 

    

 

 

  

Consolidated totals

   ￦        185,249,061       5,878,345        12,377,457       114,156,299  
    

 

 

    

 

 

     

 

 

    

 

 

  

 

           2019  

Segment

          Segment
assets		     Investments
in associates
and joint
ventures		      Acquisition of
non-current
assets		     Segment
liabilities		  
           In millions of won  

Transmission and distribution

   ￦        109,809,254       3,716,931        6,340,593       58,350,681  

Electric power generation (Nuclear)

        59,562,190       59,081        2,574,358       33,909,152  

Electric power generation (Non-nuclear)

        54,758,933       2,088,581        4,955,784       33,117,193  

Plant maintenance & engineering service

        3,528,879       50,238        95,810       1,124,855  

Others

        7,833,516       —          344,795       3,531,496  
    

 

 

    

 

 

     

 

 

    

 

 

  

Segment totals

        235,492,772       5,914,831        14,311,340       130,033,377  
    

 

 

    

 

 

     

 

 

    

 

 

  

Consolidation adjustments:

            

Elimination of inter-segment amounts

        (39,207,636 )      —          (81,555 )      (6,654,717 ) 

Equity method adjustment

        1,791,844       —          —         —    

Deferred taxes

        2,048       —          —         5,329,158  

Others

        (481,236 )      —          —         325  
    

 

 

    

 

 

     

 

 

    

 

 

  
       (37,894,980 )      —          (81,555 )      (1,325,234 ) 
    

 

 

    

 

 

     

 

 

    

 

 

  

Consolidated totals

   ￦        197,597,792       5,914,831        14,229,785       128,708,143  
    

 

 

    

 

 

     

 

 

    

 

 

  

 
Geographic information

Electric sales, the main operations of the Company, are conducted in the Republic of Korea. The following information on revenue from external customers and non-current assets is determined by the location of the customers and of the assets:

 

Geographical unit

          Revenue from external customers     Non-current assets(*2)  
         2017     2018     2019     2017     2018     2019  
           In millions of won  

Domestic

    ￦       55,652,807       57,799,991       56,942,128       153,436,810       157,037,428       169,366,365  

Overseas(*1)

        3,683,082       2,233,071       1,625,954       4,497,535       3,299,346       2,743,755  
    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

  
   ￦       59,335,889       60,033,062       58,568,082       157,934,345       160,336,774       172,110,120  
    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

  

 

  (*1)

Middle East and other Asian countries make up the majority of overseas revenue and non-current assets. Since the overseas revenue or non-current assets attributable to particular countries are not material, they are not disclosed individually.

 

  (*2)

Amount excludes financial assets and deferred tax assets.
Information on significant customers


Information on significant customers

There is no single customer comprising more than 10% of the Company’s revenue for the years ended December 31, 2017, 2018 and 2019.