Responsible for the content


Reisertstrasse 1

D-53773 Hennef

fon: +49 2242 90611 0

fax: +49 2242 90611 10


Location of Companies: Hennef

Registrar of Companies: Amtsgericht Bonn

Registration no: HRB 21592

Turnover identification number according to § 27 a turnover law: DE265637802

WEEE-Reg.Nr DE22536674

CEO / Managing Director:

Horst Theisen

Responsible for the content according to § 55 paragraph 2 RStV:

Horst Theisen

Responsible according to the Terms of the German Press-Law:

Horst Theisen

Imprint: Content according to § 5 TMG



Picture License Owner:

© RHENAC GreenTec AG

© COVID-19 Illustration from the Centers for Disease Control & Prevention (CDC) –

Notes to liability

Despite carefully control of the contents we are not taking over any liability for the contents of external links. For the contents of linked sites exclusively the owner of the sites are responsible.

In case any rights may possibly be infringed by information on these web sites, i.e. trademark rights or copyrights, you are being asked to report this immediately by e-mail or otherwise in writing to us. In such cases we will change the contents into legal condition immediately.

This note should serve all parties. You may possibly know that infringements of trademark rights by Keyword-Advertising have been answered in affirmative sometimes and sometimes it was not the case. Test cases, in which this issue should be clarified by a Federal Court, are pending. It is also economically unnecessary to file for legal processes again.

In such and comparable cases we will be removing the infringement immediately. A written warning is thus not necessary and therefore we are not obliged to refund any costs arising out of a written warning.


Limitation of liability for internal content

The content of our website has been compiled with meticulous care and to the best of our knowledge. However, we cannot assume any liability for the up-to-dateness, completeness or accuracy of any of the pages.

Pursuant to section 7, para. 1 of the TMG (Telemediengesetz – Tele Media Act by German law), we as service providers are liable for our own content on these pages in accordance with general laws. However, pursuant to sections 8 to 10 of the TMG, we as service providers are not under obligation to monitor external information provided or stored on our website. Once we have become aware of a specific infringement of the law, we will immediately remove the content in question. Any liability concerning this matter can only be assumed from the point in time at which the infringement becomes known to us.

Limitation of liability for external links

Our website contains links to the websites of third parties („external links“). As the content of these websites is not under our control, we cannot assume any liability for such external content. In all cases, the provider of information of the linked websites is liable for the content and accuracy of the information provided. At the point in time when the links were placed, no infringements of the law were recognisable to us. As soon as an infringement of the law becomes known to us, we will immediately remove the link in question.


The content and works published on this website are governed by the copyright laws of Germany. Any duplication, processing, distribution or any form of utilisation beyond the scope of copyright law shall require the prior written consent of the author or authors in question.

Data protection

A visit to our website can result in the storage on our server of information about the access (date, time, page accessed). This does not represent any analysis of personal data (e.g., name, address or e-mail address). If personal data are collected, this only occurs – to the extent possible – with the prior consent of the user of the website. Any forwarding of the data to third parties without the express consent of the user shall not take place.

We would like to expressly point out that the transmission of data via the Internet (e.g., by e-mail) can offer security vulnerabilities. It is therefore impossible to safeguard the data completely against access by third parties. We cannot assume any liability for damages arising as a result of such security vulnerabilities.

The use by third parties of all published contact details for the purpose of advertising is expressly excluded. We reserve the right to take legal steps in the case of the unsolicited sending of advertising information; e.g., by means of spam mail.



See privacy policy