You need spacecraft that can return large payloads to earth. If we’re talking bulk metals I don’t believe the technology exists to land a payload like that?
But I am thinking of some possibiities. I guess you could crash small meteorites into dessert areas and re-mine from there. Or fly back with finished goods. Or just use the stuff in space.
Only insignificant amounts of finished goods and precious raw materials would ever be delivered to the Earth’s surface. Almost all of the mass of raw material and finished goods would be used in space. Earth benefits from from deliveries of services and low weight precious raw materials and finished goods representing a fraction of the extraterrestrial economy.