Erich Hertner

Grupo Igualmequisa SA engages in the holding and administration of securities of subsidiaries and investee companies. The company was founded on August 8, 2003 and is headquartered in Bilbao, Spain.

SENER Group is a engineering company. It is engaged in providing engineering and technology services. The company was founded by Enrique de Sendagorta Aramburu in 1956 and is headquartered in Getxo, Spain.

Colegio Oficial de Aparejadores Arquitectos Técnicos Navarra is a professional association located in Pamplona, Spain. The organization represents technical architects and surveyors in the Navarra region, providing them with support, training, and resources to enhance their professional development. The association also serves as a liaison between its members and the government, advocating for their interests and promoting the importance of their work in the construction industry.

Exmer SL provides consulting services. The private company is based in Madrid, Spain and has subsidiaries in Brazil, Czechia, Spain, Luxembourg, and Portugal.

Igualatorio Medico Quirurgico de Seguros y Reaseguros SA provides health care and medical insurance services. Its service portfolio includes corporate and individual medical insurance, reinsurance, and coinsurance, also medical clinics, and day care centers. It also provides electrical adjustable beds, wheelchairs, bathroom aids, transfer cranes, and walkers. The company was founded on June 17, 2004 and is headquartered in Bilbao, Spain.

Part of Tubacex SA, Tubacoat SL is a Spanish company that specializes in protective coatings for long steel and nickel alloy products. The company is based in Vizcaya, Spain.

Part of Tubacex SA, Tubacex Innovación AIE is a manufacturer of seamless tubes made from stainless steel and nickel super alloys.

Part of Tubacex SA, Tubacex America Holding Corp. is an American company that produces steel products.

SENER Ingeniería y Sistemas SA provides engineering, consulting, and systems integration services. It serves the aerospace, marine and naval, infrastructures and transport, as well as power, oil, and gas industries. The company was founded by Enrique de Sendagorta Aramburu and José Manuel de Sendagorta on June 15, 1956 and is headquartered in Getxo, Spain.

Part of Hierros Añón SA, Tubos Mecanicos Norte SA is a Spanish company that manufactures and supplies mechanical tubes. The company is based in Alava, Spain.

Tubos Mecanicos SA operates as a distributor of stainless steel bars and tubes. The firm’s services include cut to length, traceability, personalized manufacturing, boring honing, straightening, heat treatments, surface treatments, technical departments, international associations and quick deliveries. It also offers carbon steel and stainless steel. The company was founded in 1973 and is headquartered in Abrera, Spain.

Part of Tubacex SA, Tubacex Tubos Inoxidables SA is a stainless steel tubing supplier and seamless tube manufacturer. The company is based in Llodio, Spain. The Spanish company also manufactures stainless steel pipe fittings and are a leader in pipe manufacturing. The CEOs of the company are Jesús Esmorís and Álvaro Videgain Muro. The company has opened a Shareholders Office to communicate with shareholders and has a commitment to sustainability and decarbonization. The company has achieved a 46.9%% increase in sales for the first quarter and have an order book of €1.65 billion, providing great visibility for 2023. The company has a history as a stainless steel pipe manufacturer and has entered into a five-year cooperation agreement with consulting and engineering company Wood to promote their Tubacoat Technology in delayed coker furnaces and other refinery units.

Part of Tubacex SA, Tubacex Taylor Accesorios SA is a Spanish company that manufactures stainless steel products. The company is based in Arceniega, Spain. The CEOs of the company are Jesús Esmorís, Álvaro Videgain Muro.

Part of Tubacex SA, Salem Tube, Inc. is a company that manufactures steel tubes. The company is based in Greenville, PA. Salem Tube was acquired by Tubacex SA on June 01, 1995.

Part of Tubacex SA, Metaux Inox Services SA is a French company that markets steel products. The company is based in Mions, France. Metaux Inox Services was acquired by Tubacex SA from Cotubel NV on December 23, 2004 for $2.68 million.

Acería de Alava SA is a company based in Amurrio, Spain and is part of Tubacex SA. The CEOs of the Spanish company are Jesús Esmorís and Álvaro Videgain Muro. The company specializes in providing premium tubular solutions in advanced materials. The company has achieved a 46.9%% increase in sales for the first quarter of the year compared to the same period last year, with an EBITDA margin of 13.3%%. Acería de Alava SA has entered into a five-year cooperation agreement with consulting and engineering company Wood to promote the Tubacoat Technology in delayed coker furnaces and other refinery units. The company is committed to sustainability and decarbonization and shares their environmental strategy and innovative solutions with their clients. TUBACEX has also opened the Shareholders Office to communicate with their shareholders.