IMERYS Industrial Minerals Greece Single-Member Société Anonyme

The initiative aimed to ensure a safe and aesthetically upgraded electrical installation within the Catacombs, enhancing visitor experience, improving safety, and preserving the integrity of the archaeological site. It also promoted the sustainable management of cultural heritage.

Visitors to cultural and archaeological sites, local communities, cultural heritage management bodies, archaeologists, tour guides, and site personnel.

April 2025

The initiative to upgrade the electrical infrastructure of the Catacombs, led by Imerys, was implemented with a dual focus on safety and visual enhancement, ensuring a smooth and high-quality experience for all visitors. Works included the installation of two new electrical panels, the routing of 500 meters of cabling using protective conduit, the placement of 80 LED fixtures, repair of existing lighting units, and the installation of two new emergency lighting systems.

In addition, the emergency exit notification system was restored to reduce exposure to CO₂ levels inside the Catacombs, an essential factor for ensuring visitor safety and preserving air quality.

The completed initiative delivered significant and multidimensional benefits. Most importantly, it ensured the uninterrupted and safe operation of the Catacombs by adhering to strict safety standards and replacing outdated or inadequate systems. This is especially crucial for a high-traffic archaeological site where the safety of visitors and staff is paramount.

Furthermore, the upgraded infrastructure drastically reduced the risk of accidents or technical failures that could endanger lives or cause damage. Imerys has thus provided a reliable and secure environment, enhancing public trust and the confidence of local stakeholders.

The energy-efficient upgrade, based on the installation of modern LED lights and optimized cabling, delivered measurable cost-saving results. LED fixtures are known for their energy efficiency and long lifespan, reducing both power consumption and maintenance needs. As a result, operational costs were significantly lowered.

Moreover, using protective conduit safeguarded the installation from environmental damage, extending the lifespan of the system and minimizing future repair costs.

This action reinforced Imerys' reputation as a responsible and innovative company that prioritizes safety, quality, and respect for cultural heritage. It also positioned the company as a model of corporate responsibility and sustainable development, strengthening its public image and opening the door for future partnerships.

The lighting intervention at the Catacombs of Milos was carried out with full respect for the archaeological site’s sanctity and significance, in line with Greece’s legal framework for cultural heritage protection.

Imerys collaborated closely with the Ephorate of Antiquities of the Cyclades (Ministry of Culture) to ensure all technical specifications adhered to strict preservation and non-intrusion standards. Coordination also took place with the Municipality of Milos and its Technical Services Department to align the project with the island’s broader cultural identity enhancement plan and ensure technical excellence and safety.

The entire implementation respected the authenticity of the site while enhancing the visitor experience without altering the monument’s character.

The initiative was executed exclusively by Imerys’ in-house team of certified electrical technicians.

Catacombs, Milos, Greece

The completed upgrade was not merely a technical project—it had a far-reaching impact on operations, visitor experience, the local community, and Imerys’ workforce. Key outcomes include:

• Enhanced safety and reliability: Full compliance with safety standards ensured a risk-free environment with zero threat of malfunctions or accidents.
• Uninterrupted operation: Replacing aging infrastructure eliminated power failures and technical disruptions, crucial for a high-volume heritage site.
• Improved visitor experience: Modern LED lighting elevated the site's visual appeal, enriching the cultural and historical narrative for visitors.
• Energy efficiency and cost savings: Reduced energy consumption and fewer maintenance requirements led to notable economic benefits for the company.
• Infrastructure protection and sustainability: Proper cable routing and the use of protective conduit minimized environmental wear, prolonging system lifespan.
• Strengthened reputation and social acceptance: Imerys emerged as a committed and forward-thinking actor in cultural heritage preservation, enhancing its community standing and stakeholder trust.

Overall, the initiative upgraded both the functionality and cultural presentation of the Catacombs, while also deepening Imerys’ connection with its community and reinforcing a sustainable and responsible business model.

This initiative marked a milestone for Imerys, significantly strengthening its long-term sustainability and corporate identity. By investing in critical infrastructure that combines safety, innovation, and cultural respect, the company demonstrated a leading model of corporate responsibility and environmental awareness.

The improved operational reliability empowers Imerys to confidently pursue future initiatives, fostering a culture of quality and innovation throughout the organization.

Additionally, the initiative strengthened ties with the local community and institutions, while the updated infrastructure increased organizational efficiency, flexibility, and readiness for sustainable growth.