The event was attended by prominent political figures such as Deputy Mayor Raquel Gil, Spanish Vice President Yolanda Díaz, and Catalan President Salvador Illa. Hundreds of union delegates, led by CCOO General Secretary Unai Sordo and CCOO of Catalonia General Secretary Belén López, attended the celebration.
In his speech, Mayor Collboni emphasized the importance of the trade union movement for democracy and social progress, stating that "Comisiones Obreras is part of the best collective history of our country." He highlighted the need for more social dialogue and worker protection in the face of economic and technological transformations.
Collboni advocated for the protection of social rights against any regression, reminding attendees that "the labor, social, and democratic rights we have won are not irreversible" and "must be defended every day."
Prior to the main event, Deputy Mayor Gil and CCOO leadership visited the church of Sant Medir in the Bordeta neighborhood, the site of the union's last clandestine meeting in July 1976. Gil noted that this assembly demonstrated "that the labor movement had become an unstoppable force in the fight for freedoms, social justice, and the dignity of working people."
