Sound Energy plc, through its subsidiaries, engages in the exploration, appraisal, and development of gas assets in Morocco. It operates through three segments; corporate; exploration and appraisal; and development and production. The company holds 27.5% interest in the Grand Tendrara project that covers an area of approximately 14,411 square kilometers; the Anoual project covering an area of approximately 8,873 square kilometers; and 20% interest in the Tendrara project, which covers an area of approximately 133.5 square kilometers, as well as holds 75% interest in the Sidi Mokhtar project that covers an area of approximately 4,712 square kilometers located onshore on the Atlantic seaboard of Morocco. It is also involved in the explore for naturally occurring hydrogen and helium in Morocco; and renewable energy business. The company was formerly known as Sound Oil Plc and changed its name to Sound Energy plc in September 2015. Sound Energy plc was incorporated in 2005 and is headquartered in London, the United Kingdom.