The Foreign Economic Relations, Trade and Investment Promotion Service Center has the following main functions: foreign economic relations and trade policy consultation service, overseas market research service, foreign economic relations and trade knowledge training service, foreign economic relations and trade exhibition service, foreign investment promotion and marketing service, foreign economic relations and trade consultation, information, e-commerce service, various foreign economic and trade activities, conference service, foreign economic and trade talent intermediary exchange service, foreign economic and trade management and affairs coordination service, complaint handling for foreign-invested enterprises, and loan guarantee for small and medium-sized foreign economic and trade enterprises.