Siya Euphyratica GmbH (SEG)
Spaldingstraße 210,

20097 Hamburg (Germany)

Dr. Lei Yang

Email: info(at)

Registration number in the trade register: Amtsgericht Hamburg HRB 133146
Value added tax identification number according to section 27a Value Added Tax Act: DE297200207

Responsible person with regards to content according to section 55 subpar. 2 Interstate Treaty on Broadcasting (Rundfunkstaatsvertrag – RStV):
Dr. Lei Yang (address same as above)

Header Homepage: © Barcin / Source: / Use:

Website – Design and WordPress:
saa media Gmbh ( with Björn Höfer (


Liability for contents
The content of these pages were compiled with utmost care. For the accuracy, the completeness and the timeliness we cannot assume any liability.

Liability for links
Our website contains links to external websites on whose contents we have no influence. Therefore, we can not assume any liabilty for this external content. For the content of the linked websites the respective offerer or operator of the website is responsible. The linked sites will be checked for possible infringements of law at the time of the creation of the link. At the time of linking unlawful contents were not recognizable. A permanent control of the contents of the linked sites, however, without concrete evidence of a violation of the law, is not reasonable. As soon as we besome aware of a legal violation we will remove such contents immediately.

Contents and works on these sites created by the website operator are subject to German copyright. The reproduction, editing, transmission or any type of use beyond the scope of copyright law shall require the written permission of the respective author or creator. Downloads and copies of these sites are only allowed for private, non-commercial use. Insofar as the operator has not created the contents of this page, the copyrights of third parties shall be observed. Particular contents of a third party will be marked as such. Should you nevertheless notice an infringement of a copyright, we ask you to inform us. Upon notification of infringements we will remove such contents immediately.

You can use our website usually without stating any personal data. All personal data in our pages (e.g. name, address or e-mail addresses) are collected as far as practicable on a voluntary base. These data will not be forwarded to any third parties without your express consent.

Please be aware that there are inherent security risks in transmitting data, such as emails, via internet. It is not possible to fully protect data from being accessed by third parties.

We hereby expressly prohibit the use of the contact data published as part of our duty to publish a legal notice for the purpose of sending us any advertising or informational materials that we have not expressly requested. The page operators expressly reserve the right to take legal action against any party who sends unsolicited advertising information, including, but not limited to, spam emails.