Linyi National Supplementary Class is a private educational institution that focuses on high school culture class counseling. Founded in 2006, it began to recruit students in Shandong Province on a large scale in 2008. Linyi ethnic remedial classes are generally called "Chinese ethnic remedial classes" or "ethnic remedial classes". Linyi National Supplementary Tutorial Class is an educational institution with the highest degree of standardization and strong teachers in Linyi City. It is the only private educational institution in the local high school cultural extracurricular tutoring institutions with school qualifications and filed with the Education Bureau.