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v3.19.3.a.u2

INCOME TAXES: - Tax assets and liabilities (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Assets: |  |  |
Inventories | $ 55.7 | $ 61.5 |
Capitalized exploration expenses | 14.0 | 11.1 |
U.S. foreign tax credit carryforward, net of FIN 48 liability | 731.8 | 483.4 |
U.S. tax effect of Peruvian deferred tax liability | 131.3 | 165.1 |
Provisions | 145.0 | 155.0 |
Mexican tax on consolidated dividends | 9.0 | 14.8 |
Deferred workers participation | 24.7 | 27.0 |
Accrued salaries, wages and vacations | 10.0 | 9.1 |
Sales price adjustment (PUI) | 3.0 | 2.7 |
Social responsibility expenses | 2.1 | 2.1 |
Deferred charges | 14.5 | 6.1 |
Valuation allowance on U.S. deferred tax assets, foreign tax credits and U.S. tax effect on Peruvian deferred | (1,097.0) | (819.1) |
Other | 9.9 | 10.1 |
Total deferred tax assets | 54.0 | 128.9 |
Liabilities: |  |  |
Property, plant and equipment | (45.4) | (137.3) |
Other | (3.0) | (0.4) |
Total deferred tax liabilities | (48.4) | (137.7) |
Total net deferred tax assets | 5.6 |  |
Total deferred tax liabilities |  | $ (8.8) |
Increase in valuation allowance | $ 277.9 |  |
U.S. statutory rate (as a percent) | 21.00% | 21.00% | 35.00%

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