Mining - bound ore ?

[Tinker]

Just tried mining in Bichon Deserted Mine.
Ore of all types are bound items.
Can't trade or refine, can only sell to shops.
How do you mine ore for selling on market place or refining ?

 

[wargod]

If you kill the zombies on first floor you get bio and on 2nd you get diamond

 

[Tinker]

Thank you