A diamond mining company has filed a R29.9-billion claim against President Cyril Ramaphosa and his government as a near three-decade-long dispute over expropriated diamond mining rights in Lesotho reaches South African courts again. Josias van Zyl, MD of Swissbourgh Diamond Mining, is arguing that South Africa is liable to pay him damages for, among other reasons, its "unconstitutional" and "unlawful" support in disbanding the Southern African Development Community (SADC) Tribunal at a SADC summit in 2014.