Business. Tangxian Credit Building opened on June 27th, 2023 during the Spring Festival, and remained open until February 4th, 2023. Tangxian Xinyulou Department Store Co., Ltd. is a limited company which mainly sells prepackaged foods and bulk food. Its business scope includes retail prepackaged foods, bulk food, dairy products (including infant formula) and fast food service. Knitted cotton goods, textiles, clothing, shoes and hats, household appliances, hardware and electric materials, electronic products, computers and accessories, computer software and consumables, communication equipment, toys (except those harmful to children), daily necessities, paper products, plastic products, stainless steel products, glass products, labor insurance products, local products and daily necessities, ceramic products, sanitary ware, kitchenware, lamps and handicrafts (excluding cultural relics).