(a) the registration address of guangzhou dolphin sound smart technology ltd. Is located at room 401 shih ma yongping street, white cloud district, guangzhou city, and is the market supervision authority of guangzhou city, represented by a legal person, li sung yong, who has developed basic artificial intelligence software; software development; maintenance of electronic and mechanical equipment (other than special equipment); construction of sound equipment; sale of lamps; (b) sale of accessories to new energy automobiles; retail sales of daily household appliances; sale of daily department stores; sale of light-quality construction materials; sale of construction materials; sale of electronic products; wholesale distribution of clothing; sale of slides and projecting equipment; retail sale of clothing; sale of daily miscellaneous items; sale of sound equipment; manufacture of daily chemical products; sale of construction waterproofing products; retail sale of pet foods and supplie...