No, according to the Compulsory Education Law of People's Republic of China (PRC), top classes are not allowed in schools, so there are no top classes in Shenyang No.21 Middle School. Shenyang No.21 Middle School is located at No.364 Tianshan Road, Huanggu District, adjacent to Shenyang Locomotive and Rolling Stock Factory in the west. The school was founded in 1956, formerly known as Shenyang No.50 Middle School, and is a junior middle school. At the beginning of 1957, the school was renamed as Shenyang No.21 Middle School, 1958 developed into a complete middle school, and 1997 was promoted to a municipal key high school.