According to Tian Yue, BOC Holdings was established on the basis of Yanqi Group to provide supply chain management services for the printing industry. Yanqi Group is an enterprise with rich experience and resources in printing and printing industry. BOC Holdings was established based on the supply chain layout of Yanqi Group, and provided comprehensive support and solutions for printing enterprises by integrating the resources of upstream and downstream enterprises. This cooperative relationship is helpful to promote the interconnected development of printing industry and the formation of a new pattern of printing industry. They are all operating enterprises registered and licensed by the Ministry of Industry and Information Technology.