Alliance of void born clans which started prospecting at Penitus Balteus asteroid belt during Adamantium Rush 785.M41 for mineral wealth. Union was formed to resist oppression of both Chorda Dynasty and Winterscale Dynasty.
The stranglehold of Rogue Trader dynasties provided meager legal profits for void clans of Ultima Tectum ane they were forced to seek other income. Those clans prospecting at the system turn to Cold Trade to finance their ambitions.
Clans prospecting heavy ice at Nimbus Extern turn to trade of archeotech items scavenged around the comet cloud. While those set on Penitus Balteus make enormous profits on sales of exotic crystals prospected from the asteroid field.
Industrial star fortress Avaritas controls the smelting of adamantium and Necro-mechanic Fortius controls the price of adamantium ore.
12 leaders of the Void Union were servitorized 811.M41 by Necromechanic Fortius in a failed attempt to negotiate with illogical void clans.
Members of Void Union follow Confederation of Light sect of the Imperial Creed.
Following the verdict set by Penitent Clarissa they have strict protocol in case of twin births. As the verdict defines that the Emperor only bestow one soul and in cases of twin births the one, that is born last, is a daemon and subject to a purge.
819.M41 Large group of Void Union breaks off as Celos is founded by Bethel Clan and they annex the lesser clans of Nimbus Extern’s comet clouds under their leadership.