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30. Commitments | 12 Months Ended
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Dec. 31, 2017
Commitments |
Commitments | The Company has agreements to manage and maintain its activities, as well as agreements to build new projects aiming at achieving the objectives proposed in its target plan. Below, the main committed amounts as of December 31, 2017:
| 1 year | 1-3 years | 3-5 years | More than 5 years | Total
Contractual obligations – Expenses | 1,459,864 | 1,151,641 | 381,119 | 1,216,835 | 4,209,459
Contractual obligations – Investments | 1,779,320 | 2,121,493 | 1,031,762 | 5,970,069 | 10,902,644
Total | 3,239,184 | 3,273,134 | 1,412,881 | 7,186,904 | 15,112,103
The main commitment refers to São Lourenço PPP. See Note 14 (g).

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