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ACCRUED EXPENSES (Tables)
12 Months Ended
Dec. 31, 2021
ACCRUED EXPENSES  
Schedule of accrued expenses

    

2020

    

2021

Operation, maintenance, and telecommunication service

 

8,455

 

8,978

Salaries and benefits

 

3,399

 

4,180

General, administrative, and marketing expenses

 

2,255

 

2,583

Interest and bank charges

 

156

 

144

Total

 

14,265

 

15,885