Sustainability
At Marlin, sustainability is a central pillar of our strategy and corporate culture. More than a commitment, it is a guiding principle throughout every stage of our operations — from extraction to the transformation of natural stone. Operating in the heart of one of Angola’s main ornamental stone regions, we take on the responsibility of protecting natural resources and promoting practices that ensure their long-term preservation.
Clean and Renewable Energy
Energy transition is a strategic priority for the company. We invest in sustainable solutions that minimise environmental impact while ensuring operational efficiency:
Our transformation complex runs on solar energy, supported by a photovoltaic system with an installed capacity of 5,940 kWp, distributed across 14,500 solar panels, allowing the facility to operate 100% on solar power during daylight hours.
This solar infrastructure is integrated into a Hybrid Microgrid System, consisting of 8,000 kWh of battery storage, using two leading technologies — Tesla and Siemens-Gamesa. This system enables full use of solar energy and achieves a reduction of over 60% in generator usage and CO₂
emissions.
Each active quarry is equipped with dedicated solar systems, ensuring partial energy autonomy and greater operational stability during extraction activities.
Responsible Water Management
Operating in regions affected by water scarcity, particularly in southern Angola, Marlin adopts sustainable solutions to ensure efficient water use and support local communities:
At our transformation unit, we have implemented advanced water treatment and reuse systems, allowing for a significant reduction in industrial water consumption.
At the quarries, we have drilled underground water wells, which supply both the extraction processes and support infrastructure, as well as the surrounding communities.
We have constructed natural water reservoirs, which are essential to provide water for livestock and neighbouring populations during prolonged droughts.
Circular Economy and Waste Recovery
We embrace a circular economy approach by transforming by-products from extraction and processing into value-added solutions:
The waste generated is reused in the production of decorative and industrial aggregates, such as crushed stone, calcium carbonate (CaCO₃) and rolled pebbles, contributing to a broader product range and reducing environmental impact.
Our production processes are continuously optimised to minimise waste, ensuring the full recovery and valorisation of extracted materials, and promoting more sustainable practices throughout the entire value chain — thus creating an unlimited lifecycle for the stone.
Social Commitment and Human Development
We believe that sustainability must be built with people. Our social commitment is reflected in tangible actions that promote inclusion, development, and the empowerment of the communities in which we operate:
We actively support access to quality education as the foundation for local development. One example is the construction of schools in the southern region of Angola, an initiative that offers better learning conditions for dozens of children in the country.
We create employment opportunities in areas with low employability rates, with a preference for hiring professionals from the region. This contributes to the economic stability of local families and to the sustainable development of surrounding communities.
We invest in national talent development through annual technical training and professional exchange programmes. Each year, we select several employees from both the quarries and the factory for internships at our facilities in Portugal, where they deepen their skills, gain
international experience, and return with new tools for their personal and professional growth.
