From the late 1970s onward the Athus plant closed and production of steel and mining activities ceased at Rodange.
In 1994 the company merged with another Luxembourg based steel company based in Schifflange[note 1] to form ARES (Aciéries Rodange Esch-Schifflange) part of ProfilARBEB, the long products division of ARBED.
The Société Anonyme des Hauts-Fourneaux de Rodange was founded in 1872 by the brothers Charles and Jules Collart and Thomas Byrne with a capital of 2.5million Luxembourgish francs.
[1] In 1899 the company Usines et Fonderies de Rodange was founded,[5] for the production of pipes and other metal castings.
During the 1930s after the stock market crash the firm Ougrée-Marihaye required financial support, and was restructured in the later 1930s; the division S.A. Minière et Métallurgique de Rodange-Ougrée – MMR was formed in 1935 and became independent again as S.A. Minière et Métallurgique de Rodange (MMR) in 1936.
[2] In 1994 the plant merged with the Schifflange steelworks (part of the ARBED group) to form ARES (Aciéries Rodange Esch-Schifflange).