(b) Information about reportable segments as of and for the years ended December 31, 2015, 2016 and 2017 was as follows:
1) As of and for the year ended December 31, 2015
| Steel | Trading | Construction | Others | Total | ||||||||||||||||
| (in millions of Won) | ||||||||||||||||||||
|
External revenues |
￦ | 28,292,824 | 18,315,487 | 8,515,780 | 3,068,254 | 58,192,345 | ||||||||||||||
|
Internal revenues |
16,543,951 | 8,692,020 | 1,352,067 | 2,691,361 | 29,279,399 | |||||||||||||||
|
Including inter segment revenue |
9,146,808 | 4,480,744 | 1,090,193 | 2,571,219 | 17,288,964 | |||||||||||||||
|
Total revenues |
44,836,775 | 27,007,507 | 9,867,847 | 5,759,615 | 87,471,744 | |||||||||||||||
|
Interest income |
139,821 | 55,630 | 27,134 | 16,173 | 238,758 | |||||||||||||||
|
Interest expenses |
(560,767 | ) | (76,672 | ) | (91,742 | ) | (141,095 | ) | (870,276 | ) | ||||||||||
|
Depreciation and amortization |
(2,782,680 | ) | (166,814 | ) | (50,605 | ) | (282,817 | ) | (3,282,916 | ) | ||||||||||
|
Impairment loss on property, plant and equipment and others |
(243,828 | ) | (17,281 | ) | (28,345 | ) | (22,979 | ) | (312,433 | ) | ||||||||||
|
Impairment loss on available-for-sale financial assets |
(151,503 | ) | (1,410 | ) | (47,616 | ) | (40,261 | ) | (240,790 | ) | ||||||||||
|
Share of profit or loss of investment in associates and JVs |
(562,133 | ) | (212,535 | ) | (25,223 | ) | (22,618 | ) | (822,509 | ) | ||||||||||
|
Income tax expense |
(390,000 | ) | (4,772 | ) | (30,615 | ) | (18,718 | ) | (444,105 | ) | ||||||||||
|
Segment profit (loss) |
181,495 | 38,843 | (275,651 | ) | (65,570 | ) | (120,883 | ) | ||||||||||||
|
Segment assets |
70,102,972 | 12,160,406 | 9,997,683 | 10,962,594 | 103,223,655 | |||||||||||||||
|
Investment in associates |
17,457,391 | 1,097,971 | 1,076,024 | 1,186,307 | 20,817,693 | |||||||||||||||
|
Acquisition of non-current assets |
2,102,674 | 303,753 | 276,863 | 345,971 | 3,029,261 | |||||||||||||||
|
Segment liabilities |
21,078,613 | 8,953,410 | 5,716,550 | 6,472,925 | 42,221,498 | |||||||||||||||
2) As of and for the year ended December 31, 2016
| Steel | Trading | Construction | Others | Total | ||||||||||||||||
| (in millions of Won) | ||||||||||||||||||||
|
External revenues |
￦ | 26,844,154 | 16,774,078 | 6,768,348 | 2,696,933 | 53,083,513 | ||||||||||||||
|
Internal revenues |
16,062,016 | 9,646,026 | 713,703 | 2,379,945 | 28,801,690 | |||||||||||||||
|
Including inter segment revenue |
8,992,783 | 5,296,847 | 557,526 | 2,285,128 | 17,132,284 | |||||||||||||||
|
Total revenues |
42,906,170 | 26,420,104 | 7,482,051 | 5,076,878 | 81,885,203 | |||||||||||||||
|
Interest income |
126,210 | 40,424 | 65,256 | 13,564 | 245,454 | |||||||||||||||
|
Interest expenses |
(459,345 | ) | (70,841 | ) | (102,292 | ) | (126,523 | ) | (759,001 | ) | ||||||||||
|
Depreciation and amortization |
(2,788,535 | ) | (165,863 | ) | (57,719 | ) | (264,299 | ) | (3,276,416 | ) | ||||||||||
|
Impairment loss on property, plant and equipment and others |
(99,165 | ) | (45,995 | ) | (9,426 | ) | (88,696 | ) | (243,282 | ) | ||||||||||
|
Impairment loss on available-for-sale financial assets |
(225,225 | ) | (28,988 | ) | (35,331 | ) | (24,902 | ) | (314,446 | ) | ||||||||||
|
Share of profit or loss of investment in associates and JVs |
(211,084 | ) | (53,586 | ) | (283,833 | ) | (6,369 | ) | (554,872 | ) | ||||||||||
|
Income tax expense |
(495,874 | ) | (18,629 | ) | 107,520 | (56,026 | ) | (463,009 | ) | |||||||||||
|
Segment profit (loss) |
1,511,383 | 53,244 | (1,403,712 | ) | (25,889 | ) | 135,026 | |||||||||||||
|
Segment assets |
69,914,939 | 13,580,179 | 9,501,046 | 8,529,600 | 101,525,764 | |||||||||||||||
|
Investment in associates |
16,109,360 | 1,100,973 | 795,445 | 1,200,295 | 19,206,073 | |||||||||||||||
|
Acquisition of non-current assets |
2,334,842 | 249,597 | 25,533 | 191,715 | 2,801,687 | |||||||||||||||
|
Segment liabilities |
20,292,764 | 10,134,170 | 6,780,380 | 4,709,689 | 41,917,003 | |||||||||||||||
3) As of and for the year ended December 31, 2017
| Steel | Trading | Construction | Others | Total | ||||||||||||||||
| (in millions of Won) | ||||||||||||||||||||
|
External revenues |
￦ | 30,230,368 | 20,802,207 | 6,886,606 | 2,735,919 | 60,655,100 | ||||||||||||||
|
Internal revenues |
17,381,010 | 14,075,996 | 398,924 | 2,548,674 | 34,404,604 | |||||||||||||||
|
Including inter segment revenue |
12,004,614 | 8,043,643 | 329,215 | 2,446,029 | 22,823,501 | |||||||||||||||
|
Total revenues |
47,611,378 | 34,878,203 | 7,285,530 | 5,284,593 | 95,059,704 | |||||||||||||||
|
Interest income |
128,827 | 32,799 | 100,922 | 17,940 | 280,488 | |||||||||||||||
|
Interest expenses |
(422,357 | ) | (121,967 | ) | (112,983 | ) | (100,656 | ) | (757,963 | ) | ||||||||||
|
Depreciation and amortization |
(2,856,133 | ) | (206,490 | ) | (42,123 | ) | (255,620 | ) | (3,360,366 | ) | ||||||||||
|
Impairment loss on property, plant and equipment and others |
(149,840 | ) | (140,839 | ) | (37,476 | ) | (8,564 | ) | (336,719 | ) | ||||||||||
|
Impairment loss on available-for-sale financial assets |
(95,261 | ) | — | (18,637 | ) | (13,421 | ) | (127,319 | ) | |||||||||||
|
Share of profit or loss of investment in associates and JVs |
8,352 | — | (8,555 | ) | (1,518 | ) | (1,721 | ) | ||||||||||||
|
Income tax expense |
(977,853 | ) | (109,710 | ) | (109,961 | ) | (77,172 | ) | (1,274,696 | ) | ||||||||||
|
Segment profit (loss) |
2,790,855 | 112,661 | 24,545 | 232,700 | 3,160,761 | |||||||||||||||
|
Segment assets |
70,017,816 | 14,139,098 | 8,609,753 | 8,776,090 | 101,542,757 | |||||||||||||||
|
Investment in associates |
16,116,654 | 1,134,798 | 668,392 | 1,193,895 | 19,113,739 | |||||||||||||||
|
Acquisition of non-current assets |
2,033,184 | 286,185 | 99,190 | 251,665 | 2,670,224 | |||||||||||||||
|
Segment liabilities |
19,057,249 | 10,386,294 | 5,744,693 | 4,620,902 | 39,809,138 | |||||||||||||||