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v3.20.1

RELATED PARTY TRANSACTIONS: (Details) $ in Millions | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2020 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2012 item MW | Dec. 31, 2019 USD ($) | Aug. 04, 2014 item
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Related parties receivable current: | $ 35.3 |  |  | $ 30.0 |
Related parties receivable non-current: | 59.0 |  |  | 59.5 |
Related parties payable: | 81.6 |  |  | 86.4 |
Total purchases | 2.1 | $ 0.1 |  |  |
Total sales | 0.4 | 0.6 |  |  |
Grupo Mexico and affiliates |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Total purchases | 147.4 | 92.3 |  |  |
Total sales | 15.7 | 17.1 |  |  |
Asarco LLC |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Related parties receivable current: | 15.9 |  |  | 10.8 |
Related parties receivable non-current: | 59.0 |  |  | 59.5 |
Related parties payable: | 23.8 |  |  | 4.3 |
Total purchases | 62.5 | 10.0 |  |  |
Total sales | 5.9 | 2.0 |  |  |
Accounts Receivable | 62.0 |  |  |  |
Making quarterly payments | 0.5 |  |  |  |
Interest earned | 0.6 |  |  |  |
Asarco LLC | Other Noncurrent Assets [Member] |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Due from related parties, non-current | $ 59.0 |  |  |  |
Asarco LLC | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 2.00% |  |  |  |
AMMINCO |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Related parties receivable current: |  |  |  | 0.1 |
Related parties payable: | $ 9.1 |  |  | 16.9 |
Total purchases | 4.4 | 2.4 |  |  |
Compania Perforadora Mexico, S.A.P.I. de C.V. and affiliates |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Related parties receivable current: | 0.3 |  |  | 0.3 |
Eolica El Retiro, S.A.P.I. de C.V. |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Related parties payable: | 0.1 |  |  |  |
Total purchases | $ 0.1 | $ 0.8 |  |  |
Number of wind turbines | item |  |  |  |  | 37
Percentage of supply to third-party energy users | 3.00% | 20.90% |  |  |
Ferrocarril Mexicano, S.A. de C.V. |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Related parties payable: | $ 6.1 |  |  | 6.4 |
Total purchases | 12.0 | $ 10.6 |  |  |
Grupo Mexico |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Related parties receivable current: | 2.7 |  |  | 2.7 |
Related parties payable: | 1.3 |  |  | 1.1 |
Total purchases | 2.5 | 2.5 |  |  |
Donations | 0.0 | 3.4 |  |  |
Mexico Generadora de Energia, S. de R.L. ("MGE") |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Related parties receivable current: | 15.5 |  |  | 15.3 |
Related parties payable: | 34.7 |  |  | 40.2 |
Total purchases | 51.6 | 55.2 |  |  |
Total sales | 9.8 | $ 15.1 |  |  |
Mexico Generadora de Energia, S. de R.L. ("MGE") | Mexico |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Number of natural gas-fired combined cycle power generating units | item |  |  | 2 |  |
Net total capacity (in megawatts) | MW |  |  | 516.2 |  |
Percentage of supply to third-party energy users |  | 2.10% | 1.00% |  |
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates ("MPD") |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Related parties receivable current: | 0.2 |  |  | 0.2 |
Related parties payable: | 6.1 |  |  | 16.0 |
Mexico Proyectos y Desarrollos SA de CV and affiliates |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Total purchases | $ 14.3 | $ 10.8 |  |  |
Apu Coropuna S.R.L. |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Ownership percentage | 30.00% |  |  |  |
Boutique Bowling de Mexico, S.A. de C.V. |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Related parties receivable current: | $ 0.1 |  |  | 0.1 |
Related parties payable: | 0.3 |  |  | 0.2 |
Total purchases | 0.1 | 0.1 |  |  |
Empresarios Industriales de Mexico, S.A. de C.V |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Total sales |  | 0.1 |  |  |
Mexico Transportes Aereos, S.A. de C.V. ("Mextransport") |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Related parties receivable current: | 0.5 |  |  | 0.4 |
Related parties payable: |  |  |  | 1.2 |
Total purchases | 1.9 |  |  |  |
Total sales | 0.4 | $ 0.5 |  |  |
Operadora de Cinemas S.A. de C.V. |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Related parties receivable current: | 0.1 |  |  | 0.1 |
Related parties payable: | 0.1 |  |  | $ 0.1 |
Total purchases | $ 0.1 |  |  |  |
Equity investment in affiliate |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |
Ownership percentage | 44.20% |  |  |  |

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