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GOODWILL | 12 Months Ended
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Dec. 31, 2020
GOODWILL |
GOODWILL | NOTE 11 — GOODWILL The changes in goodwill are as follows:
|  |  |  | Accumulated |  | Goodwill after
|  | Goodwill |  | impairment losses |  | Impairment losses
Balance as of January 1, 2018 |  | 14,500,381 |  | (6,609,239) |  | 7,891,142
(+/-) Foreign exchange effect |  | 2,283,577 |  | (1,062,329) |  | 1,221,248
Balance as of December 31, 2018 |  | 16,783,958 |  | (7,671,568) |  | 9,112,390
(+/-) Foreign exchange effect |  | 661,247 |  | (304,326) |  | 356,921
Balance as of December 31, 2019 |  | 17,445,205 |  | (7,975,894) |  | 9,469,311
(+/-) Foreign exchange effect |  | 4,976,383 |  | (2,342,175) |  | 2,634,208
Balance as of December 31, 2020 |  | 22,421,588 |  | (10,318,069) |  | 12,103,519
The amounts of goodwill by segment are as follows:
|  | 2020 |  | 2019 |  | 2018
Brazil |  | 373,135 |  | 373,135 |  | 373,135
Special Steel |  | 3,828,841 |  | 2,969,752 |  | 2,854,888
North America |  | 7,901,543 |  | 6,126,424 |  | 5,884,367
|  | 12,103,519 |  | 9,469,311 |  | 9,112,390

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- Definition The disclosure of goodwill. [Refer: Goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_10_e&doctype=Standard -URIDate 2020-01-01 + Details
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