Guangzhou Hai Si Intelligent Technology Co., Ltd. mainly engages in the following business areas: ship sales; ship leasing; domestic ship agency; international ship agency; international ship management business; ship port services; marine equipment manufacturing; general equipment manufacturing (excluding special equipment manufacturing); general equipment repair; specialized equipment manufacturing (excluding licensed professional equipment manufacturing); specialized equipment repair; mechanical equipment sales; special equipment sales; engineering and technology research and development; internet sales (excluding sales of goods requiring licensing); technical services, technology development, technology consultation, technology exchange, technology transfer, technology promotion; technology import and export; goods import and export; ship repair;