General business items are: Electronic components retail; Electronic components wholesale; Electronic special materials sales; Electronic special equipment sales; Optoelectronic devices sales; Electronic vacuum devices sales; Electronic components and electromechanical components equipment sales; Electronic measurement equipment sales; Power electronic components sales; Electronic products sales; Optical communications equipment sales; Synthetic materials sales; Electrical equipment sales; Lighting sales; Domestic trade agent. (except for projects subject to approval according to law, business activities shall be carried out independently on the basis of business license according to Law). The permitted business items are: Import and export of technology; Import and export of goods. (for projects subject to approval in accordance with the law, the relevant departments may not start business activities until they have been approved by the relevant departments. The specific business projects shall be subject to the approval documents or permit documents issued by the relevant departments. )