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Property, Plant and Equipment, Net
 12 Months Ended
Dec. 31, 2020
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Property, Plant and Equipment, Net
10. Property, Plant and Equipment, net
a)
An analysis of activity in property, plant and equipment, net for the years ended December 31, 2018, 2019 and 2020 is as follows:
 
 
 
At December 31,

2017
 
 
Additions
 
 
Retirements
 
 
Business

combinations
 
 
Effect of

translation of

foreign

subsidiaries and

hyperinflation

adjustment
 
 
Depreciation

for

the year
 
 
At December 31,

2018
 
Cost
 
   
 
   
 
   
 
   
 
   
 
   
 
   
Network in operation and equipment
 
Ps.
989,665,946
 
 
Ps.
68,900,443
 
 
Ps.
(1,610,246
) 
 
 
Ps.128,246
 
 
Ps.
(87,888,453
) 
 
Ps.
 —  
 
 
Ps.
 969,195,936
 
Land and buildings
 
 
62,584,189
 
 
 
4,429,433
 
 
 
(3,987,671
) 
 
 
8,874
 
 
 
(5,904,499
) 
 
 
—  
 
 
 
57,130,326
 
Other assets
 
 
150,315,807
 
 
 
25,268,252
 
 
 
(13,377,798
) 
 
 
2,578
 
 
 
(12,399,702
) 
 
 
—  
 
 
 
149,809,137
 
Construction in process and advances plant suppliers 
(1)
 
 
74,121,374
 
 
 
92,285,397
 
 
 
(76,978,798
) 
 
 
1,379
 
 
 
(8,336,823
) 
 
 
—  
 
 
 
81,092,529
 
Spare parts for operation of the network
 
 
26,591,598
 
 
 
49,380,349
 
 
 
(44,626,488
) 
 
 
1,939
 
 
 
(2,902,869
) 
 
 
—  
 
 
 
28,444,529
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
 
1,303,278,914
 
 
 
240,263,874
 
 
 
(140,581,001
) 
 
 
143,016
 
 
 
(117,432,346
) 
 
 
—  
 
 
 
1,285,672,457
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Accumulated depreciation
 
   
 
   
 
   
 
   
 
   
 
   
 
   
Network in operation and equipment
 
 
552,345,509
 
 
 
—  
 
 
 
(28,712,096
) 
 
 
—  
 
 
 
(67,907,227
) 
 
 
104,279,361
 
 
 
560,005,547
 
Buildings
 
 
10,655,285
 
 
 
—  
 
 
 
(2,311,442
) 
 
 
—  
 
 
 
(2,157,996
) 
 
 
2,625,102
 
 
 
8,810,949
 
Other assets
 
 
63,359,529
 
 
 
—  
 
 
 
(2,418,837
) 
 
 
—  
 
 
 
(6,579,983
) 
 
 
22,172,785
 
 
 
76,533,494
 
Spare parts for operation of the network
 
 
575,393
 
 
 
—  
 
 
 
(160,696
) 
 
 
—  
 
 
 
(131,429
) 
 
 
38,479
 
 
 
321,747
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
Ps.
626,935,716
 
 
Ps.
—  
 
 
Ps.
(33,603,071
) 
 
 
Ps.       —  
 
 
Ps.
(76,776,635
) 
 
Ps.
129,115,727
 
 
Ps.
645,671,737
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net Cost
 
Ps.
676,343,198
 
 
Ps.
240,263,874
 
 
Ps.
(106,977,930
) 
 
 
Ps.143,016
 
 
Ps.
(40,655,711
) 
 
Ps.
(129,115,727
) 
 
Ps.
640,000,720
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 


 
 
 
 
At December 31,

2018
 
 
Additions
 
 
Retirements
 
 
Business

combinations
 
 
Effect of

translation of

foreign

subsidiaries and

hyperinflation

adjustment
 
 
Depreciation

for

the year
 
 
At December 31,

2019
 
Cost
 
   
 
   
 
   
 
   
 
   
 
   
 
   
Network in operation and equipment
 
Ps.
 969,195,936
 
 
Ps.
82,992,062
 
 
Ps.
(13,417,360
) 
 
Ps.
9,572,805
 
 
 
Ps.(57,669,840
) 
 
Ps.
—  
 
 
Ps.
990,673,603
 
Land and buildings
 
 
57,130,326
 
 
 
1,530,677
 
 
 
(4,025,222
) 
 
 
115,935
 
 
 
(3,950,463
) 
 
 
—  
 
 
 
50,801,253
 
Other assets
 
 
149,809,137
 
 
 
26,881,611
 
 
 
(7,594,735
) 
 
 
1,021,051
 
 
 
(7,776,500
) 
 
 
—  
 
 
 
162,340,564
 
Construction in process and advances plant suppliers 
(1)
 
 
81,092,529
 
 
 
82,640,305
 
 
 
(76,892,011
) 
 
 
209,790
 
 
 
(5,511,439
) 
 
 
—  
 
 
 
81,539,174
 
Spare parts for operation of the network
 
 
28,444,529
 
 
 
44,776,904
 
 
 
(36,525,735
) 
 
 
—  
 
 
 
(2,462,605
) 
 
 
—  
 
 
 
34,233,093
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
 
1,285,672,457
 
 
 
238,821,559
 
 
 
(138,455,063
) 
 
 
10,919,581
 
 
 
(77,370,847
) 
 
 
—  
 
 
 
1,319,587,687
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Accumulated depreciation
 
   
 
   
 
   
 
   
 
   
 
   
 
   
Network in operation and equipment
 
 
560,005,547
 
 
 
—  
 
 
 
(24,954,514
) 
 
 
—  
 
 
 
(47,778,627
) 
 
 
93,097,695
 
 
 
580,370,101
 
Buildings
 
 
8,810,949
 
 
 
—  
 
 
 
(287,072
) 
 
 
—  
 
 
 
(1,386,974
) 
 
 
2,330,405
 
 
 
9,467,308
 
Other assets
 
 
76,533,494
 
 
 
—  
 
 
 
(695,425
) 
 
 
—  
 
 
 
(4,754,982
) 
 
 
19,249,104
 
 
 
90,332,191
 
Spare parts for operation of the network
 
 
321,747
 
 
 
—  
 
 
 
(283,986
) 
 
 
—  
 
 
 
(79,226
) 
 
 
116,182
 
 
 
74,717
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
Ps.
645,671,737
 
 
Ps.
—  
 
 
Ps.
(26,220,997
) 
 
Ps.
—  
 
 
 
Ps.(53,999,809
) 
 
Ps.
114,793,386
 
 
Ps.
680,244,317
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net Cost
 
Ps.
 640,000,720
 
 
Ps.
238,821,559
 
 
Ps.
(112,234,066
) 
 
Ps.
10,919,581
 
 
 
Ps.(23,371,038
) 
 
Ps.
(114,793,386
) 
 
Ps.
639,343,370
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
At

December 31,

2019
 
 
Additions
 
 
Retirements
 
 
Business

combinations
 
 
Revaluation
adjustments
 
 
Transfers
 
 
Effect of

translation of

foreign

subsidiaries

and

hyperinflation

adjustment
 
 
Depreciation

for

the year
 
 
At

December 31,

2020
 
Cost
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
Network in operation and equipment
 
Ps.
990,673,603
 
 
Ps.
90,387,449
 
 
Ps.
(19,574,391
) 
 
Ps.
996,974
 
 
Ps.
107,152,628
 
 
Ps.
(62,050,212
) 
 
Ps.
(49,993,808
) 
 
Ps.
—  
 
 
Ps.
1,057,592,243
 
Land and buildings
 
 
50,801,253
 
 
 
570,062
 
 
 
(2,853,037
) 
 
 
—  
 
 
 
—  
 
 
 
—  
 
 
 
369,300
 
 
 
—  
 
 
 
48,887,578
 
Other assets
 
 
162,340,564
 
 
 
17,474,218
 
 
 
(14,454,598
) 
 
 
55,848
 
 
 
—  
 
 
 
—  
 
 
 
(8,393,187
) 
 
 
—  
 
 
 
157,022,845
 
Construction in process and advances plant suppliers
(1)
 
 
81,539,174
 
 
 
59,635,316
 
 
 
(68,661,847
) 
 
 
1,099
 
 
 
—  
 
 
 
—  
 
 
 
(5,011,829
) 
 
 
—  
 
 
 
67,501,913
 
Spare parts for operation of the network
 
 
34,233,093
 
 
 
30,721,413
 
 
 
(37,829,818
) 
 
 
—  
 
 
 
—  
 
 
 
—  
 
 
 
(2,328,430
) 
 
 
—  
 
 
 
24,796,258
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
 
1,319,587,687
 
 
 
198,788,458
 
 
 
(143,373,691
) 
 
 
1,053,921
 
 
 
107,152,628
 
 
 
(62,050,212
) 
 
 
(65,357,954
) 
 
 
—  
 
 
 
1,355,800,837
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Accumulated depreciation
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
Network in operation and equipment
 
 
580,370,101
 
 
 
—  
 
 
 
(25,726,856
) 
 
 
—  
 
 
 
—  
 
 
 
(62,050,212
)
(2)
 
 
 
(58,055,450
) 
 
 
96,729,723
 
 
 
531,267,306
 
Buildings
 
 
9,467,308
 
 
 
—  
 
 
 
(1,663,796
) 
 
 
—  
 
 
 
—  
 
 
 
—  
 
 
 
(622,253
) 
 
 
1,906,140
 
 
 
9,087,399
 
Other assets
 
 
90,332,191
 
 
 
—  
 
 
 
(9,317,821
) 
 
 
—  
 
 
 
—  
 
 
 
—  
 
 
 
(5,120,175
) 
 
 
16,549,822
 
 
 
92,444,017
 
Spare parts for operation of the network
 
 
74,717
 
 
 
—  
 
 
 
(176,131
) 
 
 
—  
 
 
 
—  
 
 
 
—  
 
 
 
38,898
 
 
 
135,000
 
 
 
72,484
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
 
Ps.
680,244,317
 
 
Ps.
—  
 
 
Ps.
(36,884,604
) 
 
Ps.
—  
 
 
Ps.
—  
 
 
Ps.
(62,050,212
) 
 
Ps.
(63,758,980
) 
 
Ps.
115,320,685
 
 
Ps.
632,871,206
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net Cost
 
Ps.
639,343,370
 
 
Ps.
198,788,458
 
 
Ps.
(106,489,087
) 
 
Ps.
1,053,921
 
 
Ps.
107,152,628
 
 
Ps.
—  
 
 
Ps.
(1,598,974
) 
 
Ps.
(115,320,685
) 
 
Ps.
722,929,631
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(1)
Construction in progress includes fixed and mobile network facilities as well as satellite developments and fiber optic which is in the process of being installed.
(2)
This transfer relates to the accumulated depreciation as at the revaluation date that was eliminated against the gross carrying amount of the revalued asset.
The completion period of construction in progress is variable and depends upon the type of plant and equipment under construction.
b) Revaluation of telecommunications towers
 
The Fair value of the passive infrastructure of telecommunications towers was determined using the ”income approach” method through a discounted flow model (DFC) where, among others, inputs such as average rents per tower were used, contract term and discount rates considering market information.
As of December 31, 2020, date of the revaluation, the fair values of the passive infrastructure of the telecommunications towers were determinated by a valuation specialist with experience in the industry. The complement for the revaluation of the passive infrastructure of the telecommunications towers amounted to Ps.107,152,628 and was recognized in OCI, the change in revaluation did not have an impact on the results of the year due to depreciation effects since the change occurred on effective date 31 December 2020.
The information to be disclosed on the fair value measurement for the revalued telecommunications towers is provided in Note 19.
 
 
  
2020
 
Book value as of December 31, 2020 (cost model)
  
 
Ps.615,777,003
 
Supplement for change in accounting policy
  
 
107,152,628
 
 
  
 
 
 
Book value and fair value as of December 31, 2020 (revaluation model)
  
 
722,929,631
 
c) Relevant information related to the computation of the capitalized borrowing costs is as follows:
 
 
  
Year ended December 31,
 
 
  
2018
 
 
2019
 
 
2020
 
Amount invested in the acquisition of qualifying assets
  
Ps.
45,456,630
 
 
Ps.
50,783,957
 
 
Ps.
46,528,232
 
Capitalized interest
  
 
2,020,288
 
 
 
2,233,358
 
 
 
1,771,613
 
Capitalization rate
  
 
4.4
% 
 
 
4.4
% 
 
 
3.8
% 
Capitalized interest is being amortized over a period of estimated useful life of the related assets.