Stadtwerke Klagenfurt AG entered into a share purchase agreement to acquire 25% stake in Cleen Energy AG (WBAG:CLEN) from Erwin Stricker in November 2019. Stadtwerke Klagenfurt AG cancelled the acquisition of 25% stake in Cleen Energy AG (WBAG:CLEN) from Erwin Stricker on March 11, 2020. Instead of Stadtwerke Klagenfurt, a group of investors is now supposed to take over the shareholding of Cleen Energy.