Packaging and other printing (small amount), binding; Paper products processing (no chemical treatment process, no wastewater discharge); Sales of paper products, plastic paper products, needle textiles, wooden boxes, metal products, office equipment, office supplies, glass products, mechanical equipment, printing auxiliary materials, packaging materials, computers and auxiliary equipment, computer consumables and computer software; Computer software and hardware development, technical service and technology transfer; Printing plate making design, packaging and decoration design; Exhibition service; Conference service; Engaged in foreign trade operation of import and export of goods and technology. (Projects that are subject to approval according to law can be operated only after being approved by relevant departments)