| Company | Share | Date / Documentation |
|---|---|---|
| Ltd Biji 4 | 10% (Former) January 20, 2010 | |
| Ltd Metexis Carbi | 70% 70% 70% 70% 70% 70% 70% 70% November 12, 2025 July 8, 2019 March 21, 2017 March 10, 2015 February 12, 2015 August 4, 2011 July 1, 2011 June 25, 2010 | |