He also had the honor of having been President and founder of ASAPRA, the Association of Professional Customs Agents of the Americas, of which he was one of the signing members of its foundation on November 29, 1969 in the city of Viña del Mar, Chile.
In 1967, the firm Enrique Pereira Kliche became Pereira Kliche Ltda. Customs Broker, a firm that continues with the professional work carried out up to that time in a personal name and becoming its head partner.
His vision of the sector led him to expand the services of Pereira Kliche Ltda. To the main border cities to facilitate international land trade with Argentina and Brazil. It also deployed its presence to the free zones, standing out Zona Franca Colonia, Uruguay.