It's probably because of some unrealised capital losses on the books? (Or realised capital losses carried forward?) The last Appendix 4D listed "current tax assets" of $2,182,273.
Week 46 Wrap: Copper hits 2mth low as Trump threatens net zero pace; US rally fades; HotCopper’s picks
AN1 CuFe sells its Crossroads gold royalty to Northern Star for $4M cash; says better than waiting for mine launch