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REVENUE RECOGNITION: (Tables) | 3 Months Ended
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Mar. 31, 2018
REVENUE RECOGNITION: |
Summary of company's sales by geographic wise and segment wise | The geographic breakdown of the Company’s sales is as follows (in millions):
|  | Three Months Ended March 31, 2018 |
|  | Mexican Open-Pit |  | Mexican IMMSA Unit |  | Peruvian Operations |  | Corporate & Elimination |  | Consolidated |
The Americas: |  |  |  |  |  |  |  |  |  |  |
Mexico |  | $ | 368.8 |  | $ | 111.3 |  | $ | — |  | $ | (19.6 | ) | $ | 460.5 |
United States |  | 248.4 |  | 5.0 |  | 41.5 |  | — |  | 294.9 |
Peru |  | — |  | — |  | 93.5 |  | — |  | 93.5 |
Brazil |  | — |  | 12.6 |  | 62.9 |  | — |  | 75.5 |
Chile |  | — |  | — |  | 36.0 |  | — |  | 36.0 |
Other American countries |  | 12.6 |  | 0.8 |  | 1.0 |  | — |  | 14.4 |
Europe: |  |  |  |  |  |  |  |  |  |  |
Switzerland |  | 82.3 |  | 9.2 |  | 43.8 |  | — |  | 135.3 |
Italy |  | 8.3 |  | 5.5 |  | 82.2 |  | — |  | 96.0 |
Spain |  | 44.5 |  | — |  | — |  | — |  | 44.5 |
Other European countries |  | 51.8 |  | 4.6 |  | 25.7 |  | — |  | 82.1 |
Asia: |  |  |  |  |  |  |  |  |  |  |
Singapore |  | 143.9 |  | — |  | 132.5 |  | — |  | 276.4 |
Japan |  | 44.2 |  | — |  | 115.2 |  | — |  | 159.4 |
Other Asian countries |  | 63.8 |  | 0.2 |  | 8.6 |  | — |  | 72.6 |
Total |  | $ | 1,068.6 |  | $ | 149.2 |  | $ | 642.9 |  | $ | (19.6 | ) | $ | 1,841.1 |
|  | Three Months Ended March 31, 2017 |
|  | Mexican Open-Pit |  | Mexican IMMSA Unit |  | Peruvian Operations |  | Corporate & Elimination |  | Consolidated |
The Americas: |  |  |  |  |  |  |  |  |  |  |
Mexico |  | $ | 300.5 |  | $ | 88.5 |  | $ | — |  | $ | (20.6 | ) | $ | 368.4 |
United States |  | 266.6 |  | 11.7 |  | 22.1 |  | — |  | 300.4 |
Peru |  | — |  | 0.5 |  | 87.4 |  | — |  | 87.9 |
Brazil |  | — |  | 11.9 |  | 45.5 |  | — |  | 57.4 |
Chile |  | — |  | — |  | 33.2 |  | — |  | 33.2 |
Other American countries |  | 16.8 |  | 1.0 |  | 6.2 |  | — |  | 24.0 |
Europe: |  |  |  |  |  |  |  |  |  |  |
Switzerland |  | 91.3 |  | 3.3 |  | 2.5 |  | — |  | 97.1 |
Italy |  | 5.8 |  | 5.1 |  | 76.7 |  | — |  | 87.6 |
Spain |  | 30.2 |  | — |  | — |  | — |  | 30.2 |
Other European countries |  | 50.2 |  | 7.2 |  | 18.7 |  | — |  | 76.1 |
Asia: |  |  |  |  |  |  |  |  |  |  |
Singapore |  | 141.6 |  | 1.5 |  | 135.5 |  | — |  | 278.6 |
Japan |  | 26.4 |  | — |  | 89.1 |  | — |  | 115.5 |
Other Asian countries |  | 22.8 |  | 0.1 |  | 4.6 |  | — |  | 27.5 |
Total |  | $ | 952.2 |  | $ | 130.8 |  | $ | 521.5 |  | $ | (20.6 | ) | $ | 1,583.9 |
The following table presents information regarding the sales value by reporting segment of the Company’s significant products for the three months ended March 31, 2018 and 2017 (in millions):
|  | Three Months Ended March 31, 2018 |
|  | Mexican Open-Pit |  | Mexican IMMSA Unit |  | Peruvian Operations |  | Corporate & Elimination |  | Consolidated |
Copper |  | $ | 909.4 |  | $ | 11.2 |  | $ | 564.0 |  | $ | (11.2 | ) | $ | 1,473.4 |
Molybdenum |  | 91.0 |  | — |  | 45.3 |  | — |  | 136.3 |
Zinc |  | — |  | 95.0 |  | — |  | (0.1 | ) | 94.9 |
Silver |  | 42.6 |  | 20.6 |  | 15.4 |  | (7.5 | ) | 71.1 |
Other |  | 25.6 |  | 22.4 |  | 18.2 |  | (0.8 | ) | 65.4 |
Total |  | $ | 1,068.6 |  | $ | 149.2 |  | $ | 642.9 |  | $ | (19.6 | ) | $ | 1,841.1 |
|  | Three Months Ended March 31, 2017 |
|  | Mexican Open-Pit |  | Mexican IMMSA Unit |  | Peruvian Operations |  | Corporate & Elimination |  | Consolidated |
Copper |  | $ | 828.2 |  | $ | 10.9 |  | $ | 457.6 |  | $ | (10.9 | ) | $ | 1,285.8 |
Molybdenum |  | 53.9 |  | — |  | 38.9 |  | — |  | 92.8 |
Zinc |  | — |  | 79.3 |  | — |  | (0.3 | ) | 79.0 |
Silver |  | 47.5 |  | 19.7 |  | 14.0 |  | (7.4 | ) | 73.8 |
Other |  | 22.6 |  | 20.9 |  | 11.0 |  | (2.0 | ) | 52.5 |
Total |  | $ | 952.2 |  | $ | 130.8 |  | $ | 521.5 |  | $ | (20.6 | ) | $ | 1,583.9 |
Schedule of opening and closing balances of receivables by reporting segment | The following table presents information regarding the opening and closing balances of receivables by reporting segment of the Company for the three months ended March 31, 2018 (in millions):
|  | Mexican Open-Pit |  | Mexican IMMSA Unit |  | Peruvian Operations |  | Corporate & Elimination |  | Consolidated |
As of March 31, 2018: |  |  |  |  |  |  |  |  |  |  |
Trade receivables |  | $ | 539.7 |  | $ | 71.7 |  | $ | 262.5 |  | $ | — |  | $ | 873.9 |
Related parties |  | 58.1 |  | — |  | — |  | $ | 8.0 |  | $ | 66.1 |
As of December 31, 2017: |  |  |  |  |  |  |  |  |  |  |
Trade receivables |  | $ | 556.2 |  | $ | 79.7 |  | $ | 254.7 |  | $ | — |  | $ | 890.6 |
Related parties |  | 18.0 |  | — |  | — |  | 8.1 |  | 26.1 |
Schedule of provisionally priced copper and molybdenum sales outstanding |
|  | Sales volume (million lbs.) |  | Priced at (per pound) |  | Month of settlement |
Copper |  | 45.5 |  | $ | 3.02 |  | From April 2018 to June 2018 |
Molybdenum |  | 9.4 |  | $ | 12.63 |  | From April 2018 to June 2018 |

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