Sector 9 was a top secret program of the Kal-Bryant Mining Conglomerate with the cooperation of the Terran Dominion. It was tied deeply into Project Shadowblade. The full nature of the program was kept secret, but advanced starship cloaking systems were developed from it.
After the shutdown of Project Shadowblade, the Dominion attempted to remove those with knowledge of the project, including those in Sector 9. Toom, a vice president who oversaw the project, was forced to commit suicide by the Terran Dominion after Aal Cistler sold secrets of the project to the Umojan Protectorate and framed Toom.