Compañía Española de Minas de Tharsis

The Compañía Española de Minas de Tharsis was a Spanish 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.

Source: Wikipedia — Compañía Española de Minas de Tharsis (CC BY-SA 4.0)