Agri South Africa (Agri SA) challenged the Mineral and Petroleum Resources Development Act 28 of 2002 (MPRDA) on behalf of its members, commercial farmers and mineral rights holders. The case used Sebenza (Pty) Ltd as a test case. Sebenza purchased coal rights for R1,048,800 in 2001 under the Minerals Act 50 of 1991 regime. When the MPRDA came into effect on 1 May 2004, it abolished private ownership of minerals and vested custodianship in the state. Under the old regime, holders could sterilise (not exploit) mineral rights indefinitely, sell them, or lease them freely. The MPRDA froze the ability to sell, lease or cede unused old order rights until conversion with ministerial consent, and abolished sterilisation rights. Unused old order rights remained valid for one year, during which holders had exclusive rights to apply for prospecting or mining rights. Sebenza could not apply due to insolvency and financial constraints. Its liquidators attempted to sell the rights for R750,000 but the sale was cancelled after advice that rights no longer existed. Sebenza lodged a claim for compensation, alleging expropriation. The High Court found expropriation occurred. The Supreme Court of Appeal reversed, holding no expropriation took place as the state did not acquire property.