| Company | Share | Date / Documentation |
|---|---|---|
| Ltd Premium Perliti | 100% (Former) 100% (Former) 100% (Former) 100% (Former) 100% (Former) September 19, 2016 July 30, 2015 September 16, 2014 July 2, 2014 April 3, 2014 | |
| Ltd Samto Kompania Paravanperliti | 10% 10% 10% 10% 10% 10% 10% 10% 10% 10% 10% 10% 10% 10% 10% 10% 10% 10% June 11, 2024 January 15, 2024 April 11, 2023 August 11, 2020 June 11, 2019 January 16, 2019 May 17, 2018 August 23, 2016 June 9, 2016 April 8, 2016 July 29, 2015 July 15, 2015 June 9, 2015 December 31, 2015 December 18, 2014 September 16, 2014 July 2, 2014 March 14, 2014 | |