New Building, Theives Den, can produce two new materials, Unregulated Pharmaceuticals and Scrap & Salvage. I was even thinking the Unregulated Pharmaceuticals could be made at a LAB for production material cost, while everything produced at the Theives Den would just be slow and cost only consumables.
Both new materials would end up as market makers but Scrap & Salvage could even become inputs for a Recycling Facility maybe?
This all could be expanded on with future features, adding any kind of NPC police force could randomly check ships for contraband and fine anyone caught. Meanwhile scrap could come from any future feature that includes fighting off pirates or searching wreck debris.