There is also an Old Tang's factory which produces and markets noodles, beef, condiments, and other related products.
老唐為了維護信譽，實施嚴格品管，遂於前年創辦「海燕實業公司」，不論牛肉、麵條、調味料、開胃小菜都由工廠統一製造，每天燉製一噸左右的牛肉（約等於七、八頭牛的肉），由六部專車巡迴運送供應各個分店。