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Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2019
Notes to Consolidated Financial Statements [Abstract]  
Schedule of Estimated Useful Lives of Property, Plant and Equipment

The estimated useful life for the current period and comparative periods is as follows:

 

In Years

Land, roads and buildings

15-30

Installations and equipment (1)

8-25

Dikes and evaporating ponds (2)

20-40

Heavy mechanical equipment

5-15

Furniture, vehicles and equipment

3-10

(1)  Mainly 25 years

(2)  Mainly 40 years
Schedule of Estimated Useful Lives of Intangible Assets

The estimated useful life for the current period and comparative periods is as follows:

 

In Years

Concessions and mining rights – over the balance of the rights granted to the companies

 

Trademarks

15-20

Technology / patents

7-20

Customer relationships

15-25

Exploration and evaluation assets

8-10

Computer applications

3-10