If you need that material to be in space, for use in space, remember competing materials (from Earth) need to pay a large get-it-out-of-the-gravity-well tax. I

If you need that material to be in space, for use in space, remember competing materials (from Earth) need to pay a large get-it-out-of-the-gravity-well tax. I think something currently in the order of $1k per kg.