Earned by collecting from the Outpost Control Center building. Used to exchange for refined materials in the Outpost Refinery.

Upgrade the Outpost Control Center to unlock/improve Grade-specific exchanges and higher rarity exchanges.
5★ unlocks from Level 1 & Ops 51+
6★ unlocks from Level 37 & Ops 61+
7★ unlocks from Level 63 & Ops 71+