Every ore patch is a currency. Mine dirty cash, wash it, strap it, seal it into vacuum bricks, and move it across five jurisdictions. Burn the small notes for power; ship the large ones.
Large total conversion mods.
When an assignment is satisfied, any extra currency is deleted from the inventory of The Handler.
Edit: I see there was a function written, set_aside, and it was never actually used. The money should at least stay there.