| Company | Share | Date / Documentation |
|---|---|---|
| Ltd Arte | 50% (Former) October 3, 2012 | |
| Ltd Tetra 2023 | 50% 50% 50% 50% 50% 50% 50% 50% December 1, 2023 December 22, 2020 July 2, 2019 August 23, 2017 March 15, 2017 October 22, 2015 September 3, 2013 April 22, 2013 | |