Mecanizaciones y Fabricaciones. S.A.U. (MEFASA) established in 1965 is a Capital Goods manufacturer of Metal and Plastic, 100% wholly owned by ASTURIANA DE ZINC, S.A., that is one of the largest world's electrolytic Zinc maker owned by Glencore.

We are located in San Juan de Nieva (Aviles-Asturias) with our own dock and direct access to the Bay of Avilés, what allows to manufacture equipments without dimensions limitations to be loaded.

Our strengths are focused on the manufacture of mechanically welded equipment, in Metal and Plastics or Composite Materials, with large capacities in boilermaking, welding, machining and surface treatments and own experience in different sectors of industry such as iron and steel, pulp and paper, chemical and petrochemical, energy, milling, mining, oil & gas, etc.