Tolsa promotes the environmental restoration of the La Cierva mining concession and creates a new biodiversity areanear the Monfragüe area

• Developed together with ADENEX, the project integrates local knowledge and environmental expertise to ensure an effective and lasting restoration.
• The restoration plan includes a naturalized pond, reforestation with native species, and new structures to support local wildlife.

Extremadura, April 17, 2026 — Tolsa is set to launch the final environmental restoration and biodiversity enhancement project at the La Cierva mining concession, located in the municipality of Torrejón el Rubio (Cáceres), near the Monfragüe National Park – one of the most ecologically valuable natural spaces in Extremadura.

The project will be carried out following the conclusion of former extraction activities and once authorization has been obtained from the Junta de Extremadura. Its goal is to transform a former extraction site into an environment that supports biodiversity and blends responsibly with its natural surroundings.

The initiative is being developed in collaboration with ADENEX (Association for the Defence of Nature and Resources of Extremadura), reinforcing Tolsa’s commitment to sustainability and to generating a real positive impact in the territories where it operates.

Transforming a former extraction site into a living ecosystem

The restoration plan encompasses a set of measures designed to rehabilitate the land and encourage the presence of native fauna and flora. The main planned actions include:

• The creation of a naturalized pond, which will serve as a refuge and breeding ground for amphibians, birds, insects, and aquatic flora.
• Reforestation with native species and the creation of woodland clusters that will act as ecological corridors.
• The installation of pollinator shelters, nesting boxes for birds, and specific bat shelters – species that are key to ecosystem balance.
• The development of spaces for educational and environmental awareness purposes, with the aim of bringing biodiversity closer to local residents, schools, and visitors to the area.

These actions, aligned with Sustainable Development Goals (SDGs) 13 and 15, form part of Tolsa’s commitment to more responsible mining – one that combines extractive activity with environmental restoration and the progressive recovery of the land.
Tolsa also holds Sustainable Mining certification, which validates that its operations are carried out in accordance with the highest standards of environmental responsibility, transparency, and commitment to local communities.

Collaboration to strengthen biodiversity in Extremadura

ADENEX’s involvement has been key to defining a project tailored to the real characteristics and needs of the territory.

“It is essential for us that actions are developed by listening to the environment and generating real value. The collaboration with ADENEX brings expert insight that helps us ensure every action has a positive and lasting impact,” says Adriana Villoslada, Corporate Sustainability Manager at Tolsa.

The project will improve biodiversity, enhance the natural appeal of the area, and create a new space open to visitors that can be used for environmental and educational activities in the region – contributing to the promotion of the local environment and to the responsible development of the area.