There are various self-run businesses of TPP. They are: ironsmith, carpentry, tailoring, food processing, farming, horticulture, pottery art, lacquer art and printing. Besides, TPP also accept commission of external businesses to manufacture paper bags/boxes, to assemble hangers and to pack towels. By realizing the importance of vocational training for inmates of correctional institutes, TPP had already established Taiwan Taipei Prison Affiliated Vocational Training Center since 1980. Afterward, numerous professional personnel of various fields have been successfully cultivated in order to meet the requirements of the society. Currently, the vocational training comprises lathe/milling machine, welding, pottery art, lacquer art, sand painting, Chinese food cooking, bakery, gardening, computer information processing and forklift operation courses.