Together for a cleaner air.
Deltrian International continues its sustainable transition by strengthening the commitments already presented in the 2023 CSR report. The indicators presented here are based on the 2023 perimeter, corresponding to the number of subsidiaries and operational sites at that time. Figures may be adjusted as the Group evolves and new certifications are achieved. This 2024 report integrates recent policies and initiatives, illustrating both the continuity and the progress of our sustainability journey.

Dear partners,
Behind every filter we produce, there is a story — a story of people, of responsibility,and of purpose. At Deltrian, we see sustainability not as an obligation, but as a collective mission to makethe air we breathe — and the world we live in — cleaner, safer, and fairer. 2024 has been a year of shared progress: new renewable energy projects, stronger employee engagement, and innovations that help our clients reduce their environmental footprint. But what truly makes the difference is our people. Their commitment, ideas, and sense of responsibility are what drive our progress. Together, we are building a culture where sustainability is lived every day, in every action and decision.
Thank you for your trust and for walking this path with us — toward a future where performance and purpose move in the same direction.

Rudolf Svrcina
Chief Executive Officer – C.E.O.

In 2024, 87.5% of our production sites were ISO 14001 certified, ensuring full compliance with international environmental management standards.
Installation of new solar panels in Belgium and Lithuania, bringing the Group’s total capacity to over 700 units.
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Respect for human rights, equality of opportunity, and workplace safety are at the core of our culture and policies. Through our 2025 Ethics and Sustainability Code, Deltrian reinforces its commitment to fair working conditions and a healthy work environment across all subsidiaries and production sites.
Ensure a living wage for all employees, with regular benchmarking in each country
Increase the proportion of women in management positions
Train all new employees on CSR policies and values

In line with the EU Whistleblowing Directive and the GDPR, Deltrian has implemented a secure and confidential Integrity Alert Line. This channel allows employees, suppliers, and partners to report ethical concerns or breaches anonymously and without fear of retaliation.
Integrity at Deltrian means creating an environment of trust, where everyone can speak up safely and responsibly

Our procurement policy aims to create shared value, balancing economic performance with ethical integrity and environmental responsibility.
Suppliers are selected based on objective and measurable criteria:
65%
Have all Tier-1 suppliers sign the Responsible Purchasing Charter.
100%
Evaluate 100% of strategic suppliers against sustainability (environmental, social, ethical) criteria.
80%
Conduct sustainability audits for high-risk suppliers.

Trust is at the heart of our relationships with customers, partners, and employees.
At Deltrian, privacy and cybersecurity are not just legal requirements — they are part of our corporate culture and our social responsibility.
In line with the General Data Protection Regulation (GDPR – EU Regulation 2016/679) and applicable national data protection frameworks, Deltrian is committed to protecting all personal data it processes — whether relating to employees, clients, or partners.
Building on the solid foundations laid in 2024, Deltrian will continue to strengthen its sustainability performance across all subsidiaries.
Our roadmap for the coming years is clear: to further reduce our environmental footprint while enhancing transparency, innovation, and social responsibility.
Key focus areas will include: