It was taken over by Associated Cement Wah (AC Wah) in 1949 and the strength of teachers and students increased to 5 and 129 respectively. This primary school was upgraded as middle school in 1953 in 1959, the Girls section was separated and shifted to the then Ladies Club. In 1969, Boys school was upgraded to secondary level (High School) and Girls Section was also upgraded to High School in1979.
The Administration and Financing of the AC Wah Model Schools remained the responsibility of the management of AC Wah until 03 May 1994 when it was decided to run the schools under the arrangement of a Trust to be partially financed by the Company and partially through normal fee charged from the students.
