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SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2021
SIGNIFICANT ACCOUNTING POLICIES [Abstract]  
Subsidiary Control
Detailed data reflecting subsidiary control as of December 31, 2021 and 2020 is as follows:

      
% of shareholding
and voting
       
Company
 Incorporation country
  Direct
    
Indirect
  
Closing date
 Main activity
                        
Telcosur
 Argentina     99.98 %     -   December 31 Telecommunication Services
CTG
Argentina     100 %     -  
December 31
 Electricity related services
TGSLatam Bolivia     80 %     100 % December 31 Hydrocarbons and Electrical power related services
Associates
In the table below, associates are disclosed, together with the percentage of shareholding and voting as of December 31, 2021 and 2020:

Company
% of shareholding
and voting
Country
Main activity
Closing date
         
TGU 49.00 Uruguay Pipeline maintenance December 31
EGS (“in liquidation”) 49.00 Argentina
Pipeline exploitation and construction
 December 31
Link 49.00 Argentina Pipeline exploitation and construction December 31
Earnings Per Share
Earnings per share as of December 31, 2021, 2020 and 2019 were calculated as follows:

   
2021
    
2020
    
2019
  
Net income attributable to owners of the Company
    
20,931,074
      
4,960,229
      
26,313,572
  
Average number of outstanding shares (1)
    
752,761,058
      
762,371,755
      
788,405,563
  
Basic and diluited earnings per share
    
27.81
      
6.51
      
33.38
  

(1)
The weighted average number of shares considers the effect of the weighted average of the changes originated in the transactions with the treasury shares made during the year.