The development of industrial minerals is an activity derived from the decline of metal mining in the 1980s. Since then, various initiatives have been carried out with great success with different minerals that have made it possible for the Group to have wide knowledge and technology in this sector.

MYTA (S.A. DE MINERIA y TECNOLOGÍA DE ARCILLAS) centres its activity on the operation and commercialization of absorbent clays, basically sepiolite, atapulgite and bentonite. Its production is directed to mass markets (absorbent cat litter) and to industrial markets (animal food, industrial absorbents, phytosanitary products, ceramic, etc). 70% of sales are made outside national borders, in countries of the European Union.

MINERA DE SANTA MARTA, S.A. (MSM) is one of the main producers of sodium sulphate worldwide, with an annual production of 625,000 tons. The sodium sulphate anhydrous is obtained from glauberite and tenardite in two production centres in Spain, Belorado (Burgos) and Villarrubia de Santiago (Toledo). The anhydrous sodium sulphate is used mainly in industries producing powdered detergent, glass manufacturers, paper industries, textile dyes, animal food and the chemical industry in general. MSM exports approximately 80 % of its production to European markets, North Africa, the Mideast, South America and Asia with the most complete range of products worldwide.

EUROARCE encompasses a series of companies that make up the ceramic raw materials division of SAMCA. The project began with the installation of a plant for homogenization and purification of "ball clay" type clays extracted in the mines of Ariño (Teruel). Subsequently, new companies have joined the group, supplementing the offer of EUROARCE in this sector, and positioning it as one of the main raw materials groups in Europe.

EUROARCE groups together the companies ARAGON MINERO S.A, with clay and sand operations in Ariño (Teruel) and in Basconcillos del Tozo (Burgos); ARCILLAS Y FELDESPATOS DE RIO PIRON, with Feldspar and silica sand operations in Navas de Oro (Segovia) and clay, sand and kaolin operations in Tamame de Sayago (Zamora); MIDUESA which exploits a deposit of pegmatite with high lithium content; CANTERA AMPARO which mines a deposit of high-quality clays and silica sand in the province of Segovia, and SICA, which has kaolin and sand operations in the province of Cuenca.

Beyond the supply of quality raw materials to the ceramic industry, the differential aspect of EUROARCE lies with its factories producing ceramic pastes: In the 1990s the Onda (Castellón) factory was installed, specializing in atomized pastes for pavement, coating and porcelain stoneware, and the factory in Civita Castellana (Viterbo, Italy), devoted mainly to the production of casting pastes for sanitary ceramics.

EUROARCE complements its catalogue of products with a wide range of frits, enamels, colours, slips and serigraphy produced by the company COLOR ESMALT in Alcora (Castellón).

DAYMSA (DESARROLLO AGRICOLA Y MINERO, S.A.) operates in Teruel the largest known deposit in Europe of leonardite, a material with high content in humic substances whose use as organic fertilizer makes possible the revitalization of agricultural soil and greater productivity of crops. Based on this mineral, DAYMSA manufactures and commercializes a complete range of fertilizer products and correctors for agriculture. It is commercial affiliates in several South American countries.

GRES DE ARAGÓN and CERÁMICA AÑÓN S.L. produce, respectively, pavements and special pieces of ceramic stoneware ("klinker") of high technical performance and special facing bricks of the highest quality at modern factories in Alcañiz and Alcorisa in Teruel and Tudela in Navarre.