In March 2013, the Federación Nacional de Trabajadores de la Industria de las Artes Gráficas, Papeleros y Afines (Fenalgrap) denounced the anti-union harassment against the Sindicato de Trabajadores de Flexo Spring S.A.S (Sintraflexospring). Fenalgrap stated that since the setting up of the organisation, the company has been pursuing a campaign of harassment and pressure against the organised workers and attempting to stop further workers from joining the organisation.