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15. Property, plant and equipment
 12 Months Ended
Dec. 31, 2017
Property, plant and equipment [abstract]  
Property, plant and equipment

(a)      Statement of financial position details

 

 

  December 31, 2017 December 31, 2016
  Cost Accumulated depreciation Cost Accumulated depreciation Cost Accumulated depreciation
Land 92,507 - 92,507 92,494 - 92,494
Buildings 79,013 (36,653) 42,360 77,548 (34,286) 43,262
Equipment 330,753 (226,950) 103,803 338,696 (189,556) 149,140
Transportation equipment 10,862 (7,182) 3,680 11,141 (6,610) 4,531
Furniture and fixtures 24,430 (12,614) 11,816 23,633 (11,647) 11,986
Other 1,122  (238)  884  1,181  (211)  970 
Total 538,687  (283,637)  255,050  544,693  (242,310)  302,383 

  

(b)      Changes

 

  December 31, 2016 Additions Transfers Write-offs and disposals Depreciation December 31, 2017
Land 92,494 - 13 - - 92,507
Buildings 43,262 86 1,358 - (2,346) 42,360
Equipment 149,140 17,627 (15,945) (178) (46,841) 103,803
Transportation equipment 4,531 - (33) (27) (791) 3,680
Furniture and fixtures 11,986 1,207 (75) (54) (1,248) 11,816
Other 970   -   (15)   (20)   (51)   884  
Total 302,383   18,920   (14,697)   (279)   (51,277)   255,050  

 

  December 31, 2015 Additions Transfers Write-offs and disposals Depreciation December 31, 2016
Land 102,708 - (10,214) - - 92,494
Buildings 45,891 - (911) (45) (1,673) 43,262
Equipment 162,218 26,061 (6,380) (181) (32,578) 149,140
Transportation equipment 5,692 214 (556) - (819) 4,531
Furniture and fixtures 8,418 511 4,258 (10) (1,191) 11,986
Other 149   845    -   -   (24)   970  
Total 325,076   27,631   (13,803)   (236)   (36,285)   302,383  

  

  December 31, 2014 Additions Transfers Write-offs and disposals Depreciation

December 31,

 2015

Land 100,533 1,032 1,143 - - 102,708
Buildings 42,515 1,383 3,347 - (1,354) 45,891
Equipment 146,922 51,610 (8,123) (340) (27,851) 162,218
Transportation equipment 7,613 135 (1,109) (10) (937) 5,692
Furniture and fixtures 7,124 634 1,629 (23) (946) 8,418
Other 138   -   21    -   (10)   149  
Total 304,845   54,794   (3,092)   (373)   (31,098)   325,076  

 

(c)      Depreciation

 

The Company annually revises the depreciation rates of: buildings – 3.0%; equipment- 18.0%; transportation equipment - 10% and furniture, fixture and equipment – 7.5%. Lands are not depreciated.

 

The depreciation average rate was 13.6%, 10.9% and 11.5% as of December 31, 2017, 2016 and 2015, respectively.