Initially, the company was devoted to the administration of Don Antenor's inheritance and to promoting projects such as the exploitation of lead and limestone mines. That is how the construction projects for the three most important cement plants in Peru came about. It is important to mention here the pioneer work of his son, Eng. Jaime Rizo Patron, presently chairman of the board of the company.
As a consequence of the Government's expropriation
of the associated cement plants by the military government
in 1978, the corporation's name was changed, and it
was devoted to promoting and producing industrial
technology, with the collaboration of highly qualified
professionals and technicians. In March, 1979, ARPL
obtained the first registration and qualification
as first priority industrial technology producing
enterprise, officially recognized in Peru with Industrial
Registration Nº 15-001-T.