Deutsche Balaton Aktiengesellschaft SC 13D Biofrontera / DEUTSCHE BALATON AKTIENGESELLSCHAFT ownership change

Exhibit 99.1

JOINT FILING AGREEMENT

The undersigned acknowledge and agree that the foregoing statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13D shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him or it contained herein and therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that he or it knows or has reason to believe that such information is inaccurate.

DEUTSCHE BALATON 

AKTIENGESELLSCHAFT

/s/ Rolf Birkert

Rolf Birkert

VV BETEILIGUNGEN AKTIENGESELLSCHAFT
By:	/s/ Wilhelm Konrad Thomas Zours
	Wilhelm Konrad Thomas Zours
DELPHI UNTERNEHMENSBERATUNG AKTIENGESELLSCHAFT
By:	/s/ Wilhelm Konrad Thomas Zours
	Wilhelm Konrad Thomas Zours
ROLF BIRKERT
/s/ Rolf Birkert

WILHELM KONRAD THOMAS ZOURS

/s/ Wilhelm Konrad Thomas Zours

ALEXANDER LINK

/s/ Alexander Link