his own coffee business, Mariano Ospina Pérez was summoned by the Minister of Industry, Francisco J. Chaux, and by President Enrique Olaya Herrera to preside over this congress. At the adjournment of this congress, Ospina Pérez was elected, by the unanimous vote of the delegates, as General Director of the Federation serving in this position for four years, until 1934. In the election of members of the Board of Directors in 1954, Ospina Pérez was installed as President of the Board of Directors. His return to the Federation marked the reappearance of one of Colombia's most important coffee names in an active role in the industry. Under Ospina Pérez' aegis, the National Federation of Coffee Growers of Colombia successfully consolidated the nation's coffee industry and promoted it in the world markets to great effect. Colombia became the largest producer of prime Coffea arabica coffee in the world. He laid a very solid corporative foundation, and today, the Colombian Coffee Federation congregates and supports over 500,000 independent coffee growers and small farmers. The managers of the Coffee Federation The general managers or directors of the National Federation of Coffee Growers of Colombia do not just function as business managers or administrators, given the fact that in furtherance of their normal business activities in running efficiently and effectively a private enterprise, they actively participate in the formulation and implementation of national policy for the coffee industry and they may substantially influence the macro-economic policy of the country. The general Managers have had a seat in the Board of Directors of the Banco de la República, in the Council of Economic and Social Policy (Consejo de Política Económica y Social) and in the Council of International Trade and Commerce. Furthermore, they direct and preside the diplomatic missions that represent the nation in international conferences and forums, which may influence foreign policy as well. Three of the most influential "Gerentes" (general managers) of the 20th century have been Mariano Ospina Pérez, Manuel Mejía Jaramillo and Arturo Gómez Jaramillo. Ospina Pérez (1930–1934), consolidated the organizational structure of the raising institution, promoted the creation of the national network of "almacenes generals de deposito" and established the "Caja Agraria" (a credit and financial institution to aid the small farmers and coffee growers). Mejía Jaramillo (1937–1958), gave to the national coffee industry the international prestige that it now enjoys, was instrumental in the creation of the "Flota Mercante