Renergen Ltd is an investment holding company focused on the alternative and renewable energy sectors in South Africa and sub-Saharan Africa. Its reportable segments are the Corporate Head office where all investment decisions are made; Tetra4 which explores, produces, and sells LNG in South Africa; Cryovation which has developed Cryo-VaccTM technology, and enables the safe transportation of vaccines and biologics at extremely low temperatures without the need for electrical power; and the Renergen U.S segment which assists with various fundraising and business development activities of the Group in the U.S market. The majority of the company's revenue is generated from the Tetra4 segment.