The merger of the Thyssen and Krupp steel operations at September 1, 1997 was clearly displayed on the head office of the new company.
After Thyssen and Krupp's previous efforts at cooperation in flat carbon steel had remained unsuccessful (see Thyssen 1983), in March 1997 it becomes known that Fried. Krupp AG Hoesch-Krupp is planning to acquire a majority interest in the Thyssen group. After the takeover plans are abandoned, the two companies hold intensive talks on the industrial strategy for a joint flat carbon steel company incorporating the relevant activities of Thyssen Stahl AG and Krupp Hoesch Stahl AG. Thyssen Krupp Stahl AG starts business operations on September 1, 1997 as one of the world's biggest flat steel producers.
Following the steel merger the two companies agree to look at the possibility of cooperating in other areas (see March 17, 1999).