Sustainability at RENA Technologies

Sustainability at RENA is more than a reporting topic—it is an integral part of the corporate strategy.

Under the ESG framework (Environmental, Social, Governance), RENA combines technological innovation, social responsibility, and transparent corporate governance.

The company’s goal is to reduce its ecological footprint, actively shape sustainable industrial processes, and be a reliable partner for employees, customers, and business partners.

The following content provides an overview of our principles, measures and structures in the area of sustainability.

EcoVadis Sustainability Rating

The award confirms RENA's sustainability performance in the areas of environment, labor and human rights, ethics and sustainable procurement, and underlines our continuous commitment to responsible business practices.

TÜV SÜD ISO 14001

Certification according to ISO 14001 by TÜV SÜD confirms our effective environmental management system and our structured approach to continuous improvement of environmental performance.

Environmental – Responsibility for Environment & Resources

We develop technologies that, when used by our customers, measurably increase energy, water, and resource efficiency, thus driving a sustainable industry.

Our production runs on 100% green electricity, supplemented by our own photovoltaic capacity, and we are systematically reducing our use of fossil fuels.

An established environmental management system strengthens circular processes, minimizes waste, and transforms our sites into green, resource-conserving production environments.

1 of 5

2 of 5

3 of 5

4 of 5

5 of 5

Furthermore, RENA supplies a significant portion of its products to the "Green Energy" sector.

This means that we not only want our own actions to be environmentally responsible, but also that we want our products to make a significant contribution to the global transformation towards a responsible approach to the environment.

Social – Responsibility for People and Society

We create a safe, respectful, and inclusive work environment where people can thrive.

Continuing education, diversity, and equal opportunities are firmly anchored in our corporate culture.

With sustainable mobility—from our electric vehicle fleet to company bikes—and regional engagement, we assume social responsibility beyond our company.

Social – Verantwortung für Menschen & Gesellschaft

1 of 3

2 of 3

3 of 3

Governance – Responsibility Through Transparency & Integrity

Integrity, reliability, and transparent decision-making processes form the foundation of our actions.

At RENA, sustainability is not an isolated project, but a strategic principle that is practiced in all business areas, internally, with customers and suppliers, and with all business partners.

Our ESG performance, ratings, and guidelines are publicly accessible and demonstrate our commitment to responsible and future-oriented business practices.

Compliance & Whistleblower System

RENA Technologies has established an internal reporting office in accordance with the German Whistleblower Protection Act (HinSchG). Information regarding legal violations or other serious misconduct can be reported confidentially via this office.

The whistleblower system is open to all persons who have a professional relationship with RENA Technologies GmbH, in particular employees as well as suppliers, service providers and other business partners.

Indications of violations of applicable law, compliance rules, or other serious misconduct.

Email:  Compliance@rena.com

Reports can be made with or without a name.

All information will be treated confidentially. Whistleblowers are protected from discrimination or reprisals.

Our Measures for Sustainable Business Practices

Sustainability at RENA means continuous improvement.

Through targeted investments in energy efficiency, renewable energies, infrastructure, and ecological landscaping, we are implementing concrete measures to reduce our ecological footprint.

Below, we provide an overview of key areas of action and initiatives already implemented.

Energy Efficiency & Resource Conservation

Optimization of compressed air systems (2025)
Efficiency improvement of compressors (2023)
Conversion to LED lighting in production, warehouse, administration and training workshop (since 2019, gradual expansion until 2023)
Modernization of the refrigeration system in the technical center (2022)
Conversion of the heating system at headquarters to a 460 kW wood chip heating system (2012)
Deionized water circulation for resource conservation (since 2004)

Renewable Energy & Electricity Supply

Installation of PV systems (facade 2012, production hall 2025)
Installation of PV systems in Poland (2025)
Switching to green electricity (since 2023)
The expansion of renewable energies is a key component of our energy strategy.
Continuous expansion of our own PV capacity

Sustainable Mobility & Infrastructure

Installation of a total of 27 charging stations (Phase 1: 2023, Phase 2: 2024)
Increasing share of electric vehicles in the fleet, currently 40%

Sustainable Site Development & Biodiversity

Total area Gütenbach: 50,000 m²
Of which 35,000 m² green space
Rental area: 15,000 m²
300 tree sponsorships to promote regional biodiversity