In 1907, the Metallurgica Valle Camonica, a company specialising in forging, was founded in Melagno by the Rusconi family from Breno. Carlo Tassara, an iron electrometallurgy company, began producing steel and ferroalloys in Breno.
In 1960, Carlo Tassara acquired Metallurgica Valle Camonica and focused all its production activity, steelmaking and forging at the Breno site.