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GOODWILL | 12 Months Ended
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Dec. 31, 2021
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, 2019 |  | 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
(+/-) Foreign exchange effect |  | 1,469,190 |  | (595,284) |  | 873,906
Results in operations with subsidiary and joint ventures (note 3.4) | ​ | (549,898) | ​ | — | ​ | (549,898)
Balance as of December 31, 2021 |  | 23,340,880 |  | (10,913,353) |  | 12,427,527
​ The amounts of goodwill by segment are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2021 |  | 2020 |  | 2019
Brazil |  | 373,135 |  | 373,135 |  | 373,135
Special Steel |  | 4,111,619 |  | 3,828,841 |  | 2,969,752
North America |  | 7,942,773 |  | 7,901,543 |  | 6,126,424
​ |  | 12,427,527 |  | 12,103,519 |  | 9,469,311
​

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