That's not true. According to the Compulsory Education Law, compulsory education is divided into two stages: primary compulsory education and primary secondary compulsory education (including primary secondary vocational and technical education).

Technical secondary school education generally refers to secondary vocational education, which is the high school education after compulsory education.

Therefore, compulsory education in primary and secondary schools still belongs to the category of compulsory education, not secondary education.