Nexa Resources S.A. | CIK:0001713930 | 3

  • Filed: 5/9/2018
  • Entity registrant name: Nexa Resources S.A. (CIK: 0001713930)
  • Generator: Merrill
  • SEC filing page: http://www.sec.gov/Archives/edgar/data/1713930/000110465918031781/0001104659-18-031781-index.htm
  • XBRL Instance: http://www.sec.gov/Archives/edgar/data/1713930/000110465918031781/nexa-20171231.xml
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  • ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory

     

    Provisions for tax, civil, labor, environmental and legal claims

     

    Provisions for legal claims (labor, civil, tax and environmental) are recognized when: (i) the Company has a present legal or constructive obligation as a result of past events; (ii) it is probable that an outflow of resources will be required to settle the obligation; and (iii) the amount can be reliably estimated. Provisions do not include future operating losses.

     

    Where there is a number of similar obligations, the likelihood that an outflow will be required in settlement is determined by considering the class of obligations as a whole. A provision is recognized even if the likelihood of an outflow with respect to any one item included in the same class of obligations may be small.

     

    Provisions are measured at the present value of the expenditure expected to be required to settle the obligation using a pre-tax rate that reflects current market assessments of the time value of money and the risks specific to the obligation. The increase in the provision due to the passage of time is recognized as “Financial expenses”.

     

    Asset retirement obligation

     

    The Company recognizes a provision for environmental restoration and for the closure of operating units that correspond to its legal obligation to restore the environment at the termination of its operations.

     

    Provision is made for asset retirement, restoration and environmental costs when the obligation occurs, based on the net present value of estimated future costs with, where appropriate, probability weighting of the different remediation and closure scenarios. The ultimate cost of closedown and restoration is uncertain, and management uses its judgment and experience to determine the potential scope of rehabilitation work required and to provide for the costs associated with that work. Adjustments are made to provisions when the range of possible outcomes becomes sufficiently narrow to permit reliable estimation.

     

    Cost estimates can vary in response to many factors including: changes to the relevant legal or local/national government ownership requirements and any other commitments made to stakeholders; review of remediation and relinquishment options; the emergence of new restoration techniques and the effects of inflation. Experience gained at other mine or production sites is also a significant consideration, although elements of the restoration and rehabilitation of each site are relatively unique to the site and, in some cases, there may be relatively limited restoration and rehabilitation activity and historical precedent against which to benchmark cost estimates. External experts support the cost estimation process where appropriate.

     

    Cost estimates are updated throughout the life of the operation aligned with Internal Policies and these Internal Policies themselves are also subject to periodical updates to maintain these in line with international best practices. The expected timing of expenditure included in cost estimates can also change, for example in response to changes to expectations relating to ore reserves and mineral resources, production rates, operating licenses or economic conditions. Expenditure may occur before and after closure and can continue for an extended period of time depending on the specific site requirements. Some expenditure can continue into perpetuity. In such cases, the provision for these ongoing costs may be restricted to a period for which the costs can be reliably estimated.

     

    On the date of initial recognition of the liability that arises from this obligation, discounted to present value using a risk free rate, the same amount is simultaneously charged to property, plant and equipment in the balance sheet. The selection of appropriate sources on which to base the calculation of the risk-free discount rate used for such retirement, restoration and environmental obligations requires judgment. Subsequently, the liability is increased in each period to reflect the finance cost considered in the initial measurement of the discount. Additionally, the capitalized cost is depreciated based on the useful life of the related asset. Upon settlement of the liability, the Group entities recognize any profit or loss that may arise.

     

    Any reduction in this provision and, therefore, any reduction in the related asset, exceeding the carrying amount of the asset, are immediately recognized in the income statement as “operating costs”.

     

    As a result of all of the above factors, there could be significant adjustments to the provision for close-down, restoration and environmental costs which would affect future financial results.

     

    Judicial deposits

     

    Judicial deposits are presented on a net basis in “Provisions” when there is a corresponding provision. The deposits without corresponding provisions are presented in non-current assets.