No, Laotang Mathematics is a brand of mathematics subject under Sichuan Zhiboxin Education Consulting Service Co., Ltd. According to the official information of Sichuan Zhiboxin Education Consulting Service Co., Ltd., Laotang Mathematics has no branch school in Yinchuan. Laotang Mathematics provides online course guidance for senior three students, with Tang Chuanhong as the teacher and Tang Chuanhong as the author of Derivation/Decisive Breakthrough of Mathematics in College Entrance Examination. Since its establishment, Laotang Mathematics has been committed to breaking the traditional teaching mode, customizing its own learning plan and providing targeted guidance according to the different situations of each student, constantly adjusting its learning methods and progress in the learning process, and helping students achieve grading.