The scope of business operations shall include those prohibited by laws, regulations and decisions of The State Council; Where a license (examination and approval) is required by laws, regulations or decisions of The State Council, the business shall be operated on the strength of the license (examination and approval) documents after the approval of the examination and approval organ; Where laws, regulations and decisions of The State Council provide that no license (examination and approval) is required, market entities shall independently choose to operate. (Development, production and sales of electronic components and related electronic products; Development, production and sales of piezoelectric ceramic components, ferrite components and other related products; Purchase, sale, processing and distribution of deeply processed non-ferrous metal products and related ancillary products; Complete sets of electrical equipment and devices; Audio and video equipment, plastic injection; Operating the enterprise production, scientific research required raw and auxiliary materials, mechanical equipment, instruments and meters