Suizhong No.1 Middle School, Huludao No.1 Middle School. According to the announcement issued by official website, Liaoning Education Bureau and Liaoning Key High School Cooperative School were established by several key high schools in Liaoning Province to strengthen inter-school communication. Among them, Huludao High School Cooperative School is Suizhong No.1 Middle School and Huludao No.1 Middle School, and Panjin High School Cooperative School is Panjin High School and Liaoyou No.1 Middle School. Liaoning provincial key high school cooperative schools are composed of five permanent management schools, and there are 22 provincial model high schools.