1. Zhonggong Education is a large-scale knowledge industry entity integrating face-to-face teaching and training, online school distance education, publishing and distribution of books, teaching materials and audio-visual products. Chinese public education provides professional training for candidates who take part in the teacher qualification interview, including review materials for the teacher qualification examination and counseling materials for the teacher qualification examination.

2. Chalk Education is an educational brand under Beijing Chalk Blue Sky Technology Co., Ltd., focusing on vocational education examination services. Its main business is civil service examination, public institution recruitment examination, and online education products such as teacher recruitment examination, postgraduate entrance examination, accounting, law examination, architecture, open classes, CET-4 and CET-6.