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

I Synergy Group (ASX:IS3): -40%, AU$0.003

Energy Resources of Australia (ASX:ERA): -33%, AU$0.002

EV Resources (ASX:EVR): -33%, AU$0.002

Mantle Minerals (ASX:MTL): -33%, AU$0.001

Merino & Co (ASX:MNC): -26%, AU$0.028

88 Energy (ASX:88E): -25%, AU$0.0015

Byrah Resources (ASX:BYH): -25%, AU$0.003

Lykos Metals (ASX:LYK): -23%, AU$0.01

Red Sky Energy (ASX:ROG): -20%, AU$0.008

Cycliq Group (ASX:CYQ): -20%, AU$0.004