The Compañía Española de Minas de Tharsis was a Spanish[1] company belonging to the mining sector, whose activity was developed mainly in the Tharsis-La Zarza mining basin. It was born as heir to the former British company that had operated the Tharsis mines since the mid-19th century. The company was active between 1978 and 1995, ceasing operations due to the crisis that the sector was going through at that time.
History
Creation and early years
Since the second half of the 19th century, the Tharsis Sulphur and Copper Company Limited, a British-owned company, had operated a series of mines in the Tharsis-La Zarza mining basin to extract pyrites and other minerals. By 1970 the deposits and facilities in the area began to pass into Spanish domain. In 1972 the company Cros absorbed part of its assets in the Tharsis mines, settling in the region. These changes took place in a context in which foreign capital had mostly left the mining operations in the province of Huelva. In 1978 the "Compañía Española de las Minas de Tharsis" was incorporated.