Under apartheid, approximately 87% of land and mineral resources were held by 13% of the population. The Minerals Act 50 of 1991 allowed landowners and holders of mineral rights to own and exploit minerals, sterilize mineral rights (not exploit them), and sell, lease or cede those rights. The Mineral and Petroleum Resources Development Act 28 of 2002 (MPRDA) came into effect on 1 May 2004, declaring the state custodian of all mineral and petroleum resources on behalf of the people of South Africa. The MPRDA created transitional arrangements for holders of "old order rights" to convert them into prospecting or mining rights, but imposed time limits and conditions. Sebenza (Pty) Ltd had purchased coal rights for R1,048,800 in 2001 and registered them. When the MPRDA commenced, Sebenza became a holder of an unused old order right with one year to apply for conversion. Due to internal disputes and financial difficulties, Sebenza could not pay the fees to apply for conversion and was liquidated. Its liquidators attempted to sell the rights but were advised they had ceased to exist. Sebenza lodged a claim for compensation for alleged expropriation. Agri South Africa, representing commercial farmers, took over the claim as a test case.