Software development of room 703, Jiayue building, 38 Zhongshan Avenue, Tianhe District, Guangzhou City; Software services; Software technology promotion service; Data processing and storage services; Research and development of network technology; Computer technology development and technical service; Computer technology transfer service; Information and electronic technology services; Information technology consulting service; Information system integration service; Import and export of goods (exclusive of commodities under exclusive control); Technology import and export; Trade agency; Wholesale of electronic products; Retail of electronic products; Wholesale trade of commodities (excluding commodities subject to license and approval); Retail trade of commodities (excluding commodities subject to license and approval); Trade advisory services;