Tréfimétaux is a French metallurgy conglomerate formed in 1962 by the merger of the Tréfileries et Laminoirs du Havre with the Compagnie française des métaux.
[1] In 1900 it became the Compagnie française des métaux, employing 500 workers in a 30,000 square metres (320,000 sq ft) factory in Saint-Denis.
[3] In 1962, the Compagnie française des métaux merged with the Tréfileries et Laminoirs du Havre to form Tréfimétaux.
In 1969 Chiers-Châtillon merged with Cousin frères to form the Société Seine et Lys, which closed in 1972, laying off 425 people.
[6] In 1982 PUK was nationalized and restructured, resuming the name of Pechiney, and in 1986 under Jean Gandois the state-owned group began a major expansion.
In 1990 the SMI subsidiary Europa Metalli acquired a majority of the shares of KM-Kabelmetal and became the largest copper processor in the world.
In 1993 Europa Metalli and Tréfimétaux combined their management, which were divided into three operating segments: rolled products, tubes, and brass and copper bar.
In 1995 Tréfimétaux, Europa Metalli of Italy and KM-Kabelmetal of Germany merged to become KME, a wholly owned subsidiary of SMI.