Increases Cost Efficiency of G4-G6 materials when upgrading buildings.
What it costs to research each level, how long it takes, and the effect at that level.
| LEVEL | TIME | HARD CURRENCY | COST | EFFECT |
|---|---|---|---|---|
| Lv 1 | — | Not purchasable | 1,000 Covert Procurement Particle | Covert Procurement 1% |