Notes to the company financial statements l Note 5

5 INVESTMENT IN SUBSIDIARIES

The company accounts for investments in subsidiaries at cost, less accumulated impairment losses. Interest-free loans owing to the company by its subsidiaries, with no repayment terms, are included in the cost of the investment.

The group structure and company’s subsidiaries are disclosed in note 9.1 of the group financial statements.

   2017 
Rm 
   2016 
Rm 
  
Total interest in Mobile Telephone Networks Holdings Limited 1 22 260      22 260     
Total interest in MTN Group Management Services Proprietary Limited 57      57     
Total interest in Mobile Telephone Networks Proprietary Limited2 1 441      1 008    
Total interest in subsidiary companies 23 758      23 325     
1 During the 2016 year, the company provided guarantees to Mobile Telephone Networks Holdings Limited for no compensation and the fair values thereof have been recognised as part of the cost of the investment.
2 The increase in the investment in Mobile Telephone Networks Proprietary Limited during 2017 relates to the share-based payment transaction undertaken by the group with MTN Zakhele Futhi (note 8).

Notes to the company financial statements l Note 5