He was a major player in the growing steel industry in Luxembourg during the nineteenth century, as well as a leading liberal member of the Chamber of Deputies, along with his brothers.

[1] He gained his licence to practice law in France, but returned to Luxembourg, where he became involved in the steel industry.

They formed a company, Auguste Metz & Cie, along with Théodore Pescatore, for the purpose of expanding and redeveloping the site.

[7] In 1848, Metz sat on Luxembourg's Constituent Assembly, and then the first Chamber of Deputies, elected in 1848 to represent Grevenmacher.

[8] He would not live to see the assembly of the new Chamber of Deputies, however, as he died in Eich just eight days after the election, having fallen ill inspecting the foundry at Berbourg, exacerbated by tonsillitis.