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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Millions | CAPITAL STOCK: | ADDITIONAL PAID-IN CAPITAL: | TREASURY STOCK: Southern Copper common shares | TREASURY STOCK: Parent Company (Grupo Mexico) common shares | TREASURY STOCK: | RETAINED EARNINGS: | ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS): | STOCKHOLDERS' EQUITY | NON-CONTROLLING INTEREST | Total
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at beginning of year at Dec. 31, 2017 |  | $ 3,373.3 | $ (2,768.7) | $ (232.4) |  | $ 5,726.2 | $ 0.5 | $ 6,107.7 | $ 41.7 | $ 6,149.4
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |  |
Net earnings |  |  |  |  |  | 1,543.0 |  |  | 5.2 | 1,543.0
Dividends/distributions declared and paid |  |  |  |  |  | (1,082.3) |  |  | (1.5) |
Used for corporate purposes |  |  | 0.4 |  |  |  |  |  |  |
Other activity, including dividend, interest and foreign currency transaction effect |  |  |  | (18.9) |  |  |  |  |  |
Other activity of the period |  | 20.4 |  |  |  |  |  |  |  |
Other comprehensive income (loss) |  |  |  |  |  |  | (2.9) |  |  | (2.9)
Balance at end of year at Dec. 31, 2018 | $ 8.8 | 3,393.7 | (2,768.3) | (251.3) | $ (3,019.6) | 6,186.9 | (2.4) | 6,567.4 | 45.4 | 6,612.8
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |  |
Net earnings |  |  |  |  |  | 1,485.8 |  |  | 6.1 | 1,485.8
Dividends/distributions declared and paid |  |  |  |  |  | (1,236.9) |  |  | (3.6) |
SCC shareholder derivative lawsuit - received from AMC |  |  |  |  |  | 36.5 |  |  |  | 36.5
SCC shareholder derivative lawsuit - dividend paid |  |  |  |  |  | (36.5) |  |  |  | (36.5)
Used for corporate purposes |  |  | 0.4 |  |  |  |  |  |  |
Other activity, including dividend, interest and foreign currency transaction effect |  |  |  | (29.7) |  |  |  |  |  |
Other activity of the period |  | 31.2 |  |  |  | (0.2) |  |  |  |
Other comprehensive income (loss) |  |  |  |  |  |  | (7.7) |  |  | (7.7)
Balance at end of year at Dec. 31, 2019 | 8.8 | 3,424.9 | (2,767.9) | (281.0) | (3,048.9) | 6,435.6 | (10.1) | 6,810.3 | 47.9 | 6,858.2
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |  |
Net earnings |  |  |  |  |  | 1,570.4 |  |  | 7.4 | 1,570.4
Dividends/distributions declared and paid |  |  |  |  |  | (1,159.6) |  |  | (4.1) |
Used for corporate purposes |  |  | 0.4 |  |  |  |  |  |  |
Other activity, including dividend, interest and foreign currency transaction effect |  |  |  | (15.0) |  |  |  |  |  |
Other activity of the period |  | 16.6 |  |  |  |  |  |  |  |
Other comprehensive income (loss) |  |  |  |  |  |  | 1.7 |  |  | 1.7
Balance at end of year at Dec. 31, 2020 | $ 8.8 | $ 3,441.5 | $ (2,767.5) | $ (296.0) | $ (3,063.5) | $ 6,846.4 | $ (8.4) | $ 7,224.8 | $ 51.2 | $ 7,276.0

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