MEPRONOR S.L. is an entity incorporated in June 1996 with the purpose of providing maintenance services to customers of MATRIGALSA on the polygons of A Granxa and As Gándaras. In October of the year 2000, MEPRONOR S.L. dissociates itself from MATRIGALSA and continues on his way alone. In August 2011 MEPRONOR S.L. after the restructuring of its shares becomes S.L.U. being its current proprietary Mª Dolores Rodriguez Araujo.