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15. Financial assets at amortized cost (Tables)
 12 Months Ended
Dec. 31, 2019
Financial Assets At Amortized Cost  
Financial assets at amortized cost
     12.31.19    12.31.18
Non-current        
Current        
Government bonds                          -                          -
Time deposits   -   1,858,726
Total Current                          -           1,858,726