with the assistance of Philippine Packing Corporation in obtaining the site and constructing the school.
Initially, there was 54 first year students and 23 second year students taught by three teachers: Fathers Rodolfo Cabonce, Rafael Ocampo and Luis Meciano, all Jesuit priests, who also became members of the 1st Board of Trustees.
In 1973, the Religious Sisters of Mercy of Buffalo, New York were tasked to run the institution.
The PPC-HCHS Industrial Arts program composed of Agriculture, Woodworking, Metal and Electricity was offered.
In 1977, the responsibility of running the school was delegated to the Religious Sisters of Mercy of Cork, Ireland.