Research, development, production, sales, and technical services for computer hardware and software; application and development of Internet of Things technology; development, production, and sales of smart home products, communication equipment, robots, electronic components, computer hardware and software, and electromechanical products; information system integration services; research, development, production, sales, and leasing of instruments and meters (excluding metrological instruments); import and export of goods, technology, and agency import and export (excluding goods or technologies prohibited or restricted from import and export by the state). (Projects subject to approval shall be operated in accordance with relevant departmental approval.)