Wuxi Tianyou Mathematics went out of business and its business status was cancelled. Wuxi Tianyou Mathematics Tutoring Training Center Co., Ltd. was established on 20 18- 12-04, and its business scope includes subject tutoring in primary and secondary schools (projects that must be approved according to law can only be operated after approval by relevant departments). The remedial class is an extra-curricular tutoring institution with the purpose of improving grades (not necessarily academic grades). It is also commonly known as extracurricular remedial classes, study remedial classes, and military examination remedial classes. There are many kinds of courses in remedial classes, including Chinese, mathematics, English, physics, chemistry, biology, history, geography, politics, art, sports, music and so on. There are also some languages and disciplines in society that need training and counseling.