1. Different industries: Cai Sheng E-book was established in 2008, which belongs to Beijing Cai Sheng Education Technology Co., Ltd., and Huali is a brand of Beijing Tuhua Hongyang Education and Culture Development Co., Ltd. (referred to as "Tuhua Education").

2. Different business scope: Cai Sheng E-book focuses on providing various exam counseling and training services for college students, including postgraduate entrance examination, CET-4 and CET-6, IELTS and TOEFL. Huali mainly provides training and counseling services for civil service examinations, vocational examinations, teacher recruitment and other examinations.