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Withholding Taxes Receivables, Net (Tables)
 12 Months Ended
Dec. 31, 2021
Disclosure of acquired receivables [text block] [Abstract]  
Schedule of withholding tax receivables
   2021   2020 
Balance at January 1,  $4,225,039   $6,865,971 
Addition   826,634    728,165 
Collection   (648,025)   (1,527,771)
Write off   
-
    (710,219)
Allowance for uncollectible   (190,038)   (1,055,775)
Exchange difference   (681,657)   (75,332)
Balance at December 31,  $3,531,953   $4,225,039 

 
Schedule of current and non current portion of tax receivables
   As of December 31, 
   2021   2020 
Current portion  $
-
   $690,487 
Non-current portion   3,531,953    3,534,552 
Withholding taxes receivables, net  $3,531,953   $4,225,039