The Tetan refinery, discussed in the Tetan article, represented a colossal [refinery](/article/refinery] design, exceeding the size of even an Imperial-class Star Destroyer. Its primary function was the smelting of unprocessed ore. These massive structures, numbering in the hundreds, maintained orbits around the Deep Core planet Empress Teta, processing vast quantities of raw materials transported from across the entire Empress Teta system.