The ETHUSS GROUP was born in 1965, with the acquisition by its president of Eléctricas de Manizales Ltd., which would later become established in Medellin under the name Eléctricas Ltd., before changing its name to Eléctricas de Medellín Ltd. The growth and development of the company was down to plans for the expansion of interconnection, transmission and generation promoted by the Colombian Government in order to modernize energy infrastructure during the 1970s, 1980s and 1990s as Eléctricas de Medellín was one of the few Colombian companies with the experience, infrastructure and recognition to carry out large projects.
In 1985, as a result of a horizontal integration and a product of the partnership between Sade Suramericana and Eléctricas de Medellín Ltd., Sadelec Ltd. was founded with the objective of manufacturing metal structures for towers and substations. With time, the ETHUSS GROUP acquired the majority of this company.
During 1986, as a strategic decision, the company Termotécnica Coindustrial S.A., which was founded in 1960 and recognized for its great experience in carrying out projects in the electrical generation and petroleum sectors, was acquired. In 1987, the petroleum area was consolidated through the successful maintenance of the Caño Limón – Coveñas pipeline, one of the country’s most important and emblematic projects.
In order to complement the activities carried out by the Group, HB Estructuras Metálicas S.A., which was founded in 1945 and held high recognition in the manufacture of heavy metal structures, was bought in 1993.
During the 1990s, the companies in the Group grew, expanded and consolidated, actively participating in the development of infrastructure in Colombia and various Central and South American countries, including Mexico, Venezuela, Panama, Bolivia, Ecuador and Peru.
In 2012, Eléctricas de Medellín S.A. was transformed by demerger, leading to the formation of Eléctricas de Medellín Ingeniería y Servicios S.A. (EDEMSA), keeping its certificates, RUP (proponent register), technical and economic capacity, know-how and experience in providing engineering, maintenance, operation, concession and construction services in the energy, oil and gas, mining, industrial, infrastructure, construction, communications and public services sectors.
In 2013, with the incorporation of the company Unidad de Infraestructura y Construcciones Asociadas S.A.S (UNICA), which specializes in road infrastructure and projects, the ETHUSS GROUP strengthened its objectives and cemented its presence in Colombia and the international market.