| Sud Cameroun Hevea S.A., Convention d'établissement, Undated (Main Contract) |
| La Société Hevea-Cameroun (HEVECAM), Lokoundjé et Kribi II, Decree, 2012 |
| Sud-Cameroun Hevea S.A., Dja et Lobo, Decree, 2008 |
| Sud Cameroun Hevea S.A., Meyomessala, Dja et Lobo, Decree, 2013 |
| Sud Hevea Cameroun, Djoum, Dja et Lobo, Decree, 2015 |