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Technology development, technical consultation, technical services, technology transfer and wholesale and retail of power supplies, new energy batteries, computers and auxiliary equipment, communication equipment (excluding satellite television broadcasting ground receiving facilities), electronic products, instruments and meters, electrical equipment and charging equipment; Solar module power generation system integration; Internet of Things technology development; Wholesale and retail of mechanical equipment and electronic equipment; Import and export trade agent. (For projects subject to examination and approval according to law, business activities can only be carried out after examination and approval by relevant departments)