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Accounts payable and accrued expenses:
 12 Months Ended
Dec. 31, 2019
Accounts payable and accrued expenses:  
Accounts payable and accrued expenses:

Note 10 - Accounts payable and accrued expenses:

At December 31, 2018 and 2019, the balances are as follows:

 

 

 

 

 

 

 

 

 

 

December 31, 

 

    

2018

    

2019

Suppliers

 

Ps.

313,574

 

Ps.

245,100

Taxes payable

 

 

230,196

 

 

175,573

Use rights of assets under concession

 

 

247,729

 

 

269,916

Accounts payable to related parties (Note 15.1)

 

 

97,332

 

 

97,312

Lease payable (Note 7.1)

 

 

 

 

 

20,422

Salaries payable

 

 

127,289

 

 

149,452

Sundry creditors for services provided

 

 

810,973

 

 

803,746

Accounts payable to contractors

 

 

44,331

 

 

37,809

Total

 

Ps.

1,871,424

 

Ps.

1,799,330

 

Due to the fact that these accounts mature at a term of under one year, their fair value is considered to approximate their book value.