1. Zhonggong Education Group was established in 1999. After more than 22 years of painstaking development, Zhonggong Education is an information technology and education service institution for Peking University graduates to start their own businesses.

2. Tuhua Education belongs to Beijing Tuhua Hongyang Education and Culture Development Co., Ltd., which was founded by Dr. Yi on 200 1, adhering to the mission of promoting social progress through education and taking vocational education as the core.

3. Chalk Education was established on 20 15, focusing on vocational education examination services. Its main business is the recruitment examination for civil servants, institutions and teachers, as well as online education products such as postgraduate entrance examination, accounting, law examination, architecture, CET-4 and CET-6.