The registration authority is the executive board of the liang creek district, represented by a legal person, and includes computer, software and assistive equipment research and development, technical services and sales; information systems integration services; design of logos; electronics, stationery, office equipment, instrumentation forms, hardware products, textiles, clothing and household goods, specialized equipment, currency equipment, sale of paper, rubber, metal, glass, general machinery, decoration materials; specialized design services; retail sales of department goods; import and export of self-employed and agency goods and technologies. (projects subject to legal approval may not operate without the approval of the relevant department)