| Company | Role | Date / Documentation |
|---|---|---|
| Ltd Arco | Direktori | August 19, 2011 |
| Company | Share | Date / Documentation |
|---|---|---|
| Ltd Arco | 40% August 19, 2011 | |
| Ltd Studia 21 | 50% 50% 50% 50% 50% 50% May 24, 2023 January 8, 2019 October 6, 2016 September 5, 2016 July 27, 2015 May 21, 2014 | |
| Ltd Studia Arsi | 3% 3% 3% 3% 3% 3% 3% 3% March 13, 2021 February 28, 2014 February 14, 2012 January 30, 2012 December 22, 2011 August 12, 2011 August 2, 2011 April 22, 2010 | |