Transfer mining: the sustainable technique that restores land to its original state

At Tolsa, we believe that mining can – and must – be an activity that respects the environment. That’s why every one of our operations is guided by a clear principle: to deliver a net positive impact on the environment.

Working in harmony with nature

We apply a technique known as transfer mining, which involves extracting the mineral resources of interest and restoring the land to its original state, leaving no trace behind. In this way, we ensure that every area we intervene in regains its natural balance, while preserving biodiversity and the area’s socioeconomic values.

All our operations are carried out exclusively using mobile machinery, with no need for explosives or chemical products. This allows us to generate no waste or effluents, ensuring the preservation of every metre of land we work on.

Adapting to each territory and international certification

We operate in Spain, Argentina, Senegal, the United States, Morocco and Turkey, and in each of these countries we adapt our techniques to local conditions. This approach allows us to minimise the impact of our activities and promote responsible development, while respecting both the environment and the social values of each community.

In Spain and Senegal, we hold the Sustainable Mining System (UNE 22480) certification, a recognition that endorses best practices in sustainable mining.

In fact, Tolsa was the first company in Africa to obtain this certification and one of the first in Europe, reinforcing our leadership and commitment to mining that places sustainability and respect for the environment at its core.

Would you like to learn more about our sustainability commitments?

You can explore our Sustainability Report.