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OPERATION, MAINTENANCE AND TELECOMMUNICATION SERVICE EXPENSES (Tables)
 12 Months Ended
Dec. 31, 2017
OPERATION, MAINTENANCE AND TELECOMMUNICATION SERVICE EXPENSES  
Summary of operational maintenance and telecommunication service expenses

 

 

 

 

 

 

 

 

    

2015

    

2016

    

2017

Operation and maintenance

 

15,129

 

17,047

 

19,929

Radio frequency usage charges (Note 33c.i)

 

3,626

 

3,687

 

4,276

Cost of IT services

 

882

 

1,563

 

2,648

Leased lines and CPE

 

1,913

 

2,578

 

2,607

Concession fees and USO charges

 

2,230

 

2,217

 

2,249

Cost of sales of handset (Note 7)

 

1,493

 

1,481

 

1,544

Electricity, gas and water

 

1,014

 

960

 

1,037

Cost of SIM cards and vouchers (Note 7)

 

444

 

624

 

914

Tower leases

 

646

 

322

 

472

Vehicles rental and supporting facilities

 

296

 

367

 

301

Insurance

 

312

 

256

 

294

Others

 

131

 

161

 

332

Total

 

28,116

 

31,263

 

36,603