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Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Notes to Consolidated Financial Statements [Abstract]

Schedule of Estimated Useful Lives of Property, Plant and Equipment

The estimated useful life is as follows:

	In Years
Buildings	15 - 30
Technical equipment and machinery (1)	5 - 25
Dikes and evaporating ponds (2)	20 - 40
Other	3 - 10

(1) Mainly 25 years

(2) Mainly 40 years

Schedule of Estimated Useful Lives of Intangible Assets

The estimated useful life 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