Core Viewpoint - The company, Reader Media (603999.SH), is actively involved in the publication and distribution of educational materials, particularly textbooks and supplementary resources for primary and secondary schools in Gansu Province, China [1] Group 1: Company Operations - The company's subsidiary, the Textbook Publishing Center, is responsible for the rental agency, printing, and promotion of textbooks primarily from the People's Education Press, along with other related publishing units [1] - Educational materials are distributed through the Gansu Xinhua Bookstore system, with a structured release schedule in spring and autumn each year [1] - Other subsidiaries, including the Children's Publishing House, Cultural Publishing House, and Educational Publishing House, also contribute to the publication and distribution of educational supplementary materials, achieving notable social and economic benefits [1]