Engaged in technical development, transfer, consultation, and service in the field of electrical equipment technology; Business information consulting (excluding investment consulting); Research and development of Internet of Things technology; Research and development of offshore wind power related systems; Development of key supporting systems for marine engineering; Research and development of metal products; Research and development of distribution switch control equipment; Internet sales (excluding sales of goods that require licensing); Internet of Things application services; Engineering management services; Sales of metal products, distribution switch control equipment, lighting fixtures, security equipment. (Except for projects that require approval in accordance with the law, business activities shall be carried out independently with the business license in accordance with the law) Licensed projects: Import and export of goods; Technology import and export; Import and export agency.