According to the query encyclopedia, Zhou Heiya's full name is Zhou Heiya International Holding Co., Ltd., which is a company specializing in the production, marketing and retail of leisure cooked brine products. Its main business is marinated duck, duck by-products, braised red meat, marinated vegetables, marinated poultry and aquatic products. At present, the main packaging forms of products are modified atmosphere packaging and vacuum particle packaging. It was listed on the main board of the Stock Exchange of Hong Kong on 20 16, 1 1.