Start with an orbital gantry with assembly/disassembly stations that can be used to collect space debris to be recycled into usable products.  Create micro rockets for asteroids high in metal content that can be forged at the gantry. It would be more cost efficient to mine asteroids from orbit than launching/delivering from our planet's surface.,(reply>), @Jimbob Hanes oh yes, if they break them up into smaller pieces, that could work,(reply>), Or they could control crash them into the desert somewhere and mine them after they hit 🤯,(reply>), 100%. Another option is mining the moon, as the gravity well of and launch costs from the moon are smaller and lower, respectively, than earth's.