| Company | Share | Date / Documentation |
|---|---|---|
| Ltd Ast Koch | 50% (Former) December 27, 2013 | |
| Ltd Nitra | 49% July 9, 2013 | |
| Ltd Ji En Elektrik | 25% 25% 25% 25% 25% 25% 25% April 4, 2019 September 19, 2018 March 16, 2017 June 24, 2016 February 29, 2016 August 19, 2015 April 17, 2015 | |