Earnings per share

12 Months Ended

Dec. 31, 2017

Disclosure Of Earnings Per Share Explanatory [Abstract]

Disclosure Of Earnings Per Share Explanatory [Text Block]

Note 20 Earnings per share

Basic earnings per share are calculated by dividing net income attributable to the Company’s shareholders by the weighted average of the number of shares in circulation during that period.

As expressed, earnings per share are detailed as follows:

Basic earnings per share	12/31/2017 ThUS$		12/31/2016 ThUS$		12/31/2015 ThUS$
Earnings (losses) attributable to owners of the parent		427,697		278,290		236,889

	12/31/2017 Units		12/31/2016 Units		12/31/2015 Units
Number of common shares in circulation		263,196,524		263,196,524		263,196,524

	12/31/2017		12/31/2016		12/31/2015
Basic earnings per share (US$ per share)		1.6250		1.05732		0.84

The Company has not made any operations with a potential dilutive effect that assumes diluted earnings per share are different from the basic earnings per share.