The Kreetassans are a highly cultured people, and deeply ritualistic. The first step in negotiating with them would be a full study of their difficult and highly convoluted belief systems, for they would take great offence at any misunderstandings, which may result in harming relations indefinitely. In diplomatic matters they are skilled and open, indeed their Hall of Diplomacy is an important structure on their homeworld. Ultimately they have much to offer, not just culturally, but in the raw materials present on Kreetassa.
Social and diplomatic scholars from across the empire would profit greatly from this rich cultural landmark.
Kreetassa is strategically placed, and the Ore Refinery is a key structure that will greatly aid resource logistics.