Ercros SA (Ercros) is a diversified industrial group based in Spain, primarily involved in the chemical industry. It offers products such as caustic potash, caustic soda, chloride, EDC, hydrochloric acid, PVC, sodium chlorate, sodium chlorite, sodium hypochlorite, TCCA, and VCM. The company serves various industries, including water treatment, manufacturing, building, pulp bleaching, and the pharmaceutical sector. As of December 31, 2024, Ercros had nine production centers located in Spain. The company supports industrial initiatives by third parties on its land in Flix.

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Ercros has undertaken several R&D initiatives focusing on seven key projects. These include research into environmentally sustainable alternatives to microplastics in detergents and cosmetics, development of thermally insulating PVC profiles from recycled materials, a new polymerization system for molding compounds, a synthesis process for dipentaerythritol, and the synthesis of new antibiotic salts. Additionally, the company is developing bio-based and biodegradable antifouling paints for marine applications and more sustainable molding compounds under various public-private partnership programs. The R&D units of Ercros are located in Aranjuez, Monzón, Sabiñánigo, and Tortosa. These centers support the Pharmaceuticals, Chlorine Derivatives, and Intermediate Chemicals Divisions and collaborate with universities and technology centers to manage the company's R&D activities. The company has four R&D centers and holds five registered patents. The company has submitted two additional patent applications. The major technology alliances include collaborations with the Centre for the Development of Industrial Technology (CDTI) and participation in public-private partnership programs with the Spanish State Research Agency and the Government of Catalonia. In FY2024, the company spent EUR6,688 thousand on R&D.