The trade union organisations representing employees in each of the undertakings or establishments included within the scope of the agreement are informed in advance of the opening of negotiations within this scope.
For the negotiation in question, the representative employee trade union organisations at the level of all the undertakings included in the perimeter of this agreement may appoint one or more group trade union coordinators chosen from among the trade union delegates of the group and authorised to negotiate and sign the group agreement or convention.