Here are the 10 ASX-listed companies with the biggest losses on Friday.

South Harz Potash (ASX:SHP): -33.3%, AU$0.0020

Asra Minerals (ASX:ASR): -25%, AU$0.0015

Constellation Technologies (ASX:CT1): -25%, AU$0.0015

Neometals (ASX:NMT): -23.4%, AU$0.0490

Tyranna Resources (ASX:TYX): -25%, AU$0.0030

X2M Connect (ASX:X2M): -21.1%, AU$0.0150

Evergreen Lithium (ASX:EG1): -20%, AU$0.0280

Antilles Gold (ASX:AAU): -20%, AU$0.0040

Avecho Biotechnology (ASX:AVE): -20%, AU$0.0040

BHP Global (ASX:bp8): -20%, AU$0.0020