César Loza Arenas

César Loza Arenas is the president of the Unión Sindical Obrera (USO), one of the most influential labor unions in Colombia, particularly known for its advocacy for workers' rights within the oil sector. Under his leadership, the USO has been vocal in opposing legislative changes perceived as detrimental to labor rights, as seen in the recent controversy surrounding the labor reform proposed by President Gustavo Petro. Loza's activism includes mobilizing protests and public demonstrations, emphasizing the union's commitment to defending workers against perceived injustices from government authorities and corporate interests.