Copper Peer Comparisons (Undeveloped Projects, Ore Reserves, PFS or FS), page-59

Have a look at Hillgrove Resources (HGO).

Market cap of circa $60 million
No debt
They have mining approval
They own their own processing plant valued at around $150 million to $200 million.
They need around $20 million to resume mining - likely to be debt financed rather than cap raising.

Final investment decision to resume mining very soon.
More drill results soon.
Huge upside to keep the mine going for a very long time.

Disclaimer: I hold shares.