TBWA will be responsible for above- and below-the-line corporate strategy, creative development and global execution.
The appointment marks Arcelor Mittal’s first foray into advertising since the merger announcement of June 2006.
"Arcelor Mittal is already among the largest 50 companies in the world but it’s also a young and up and coming brand with an incredible success story to tell," said Keith Smith (pictured), president of TBWA\International.
"In a business-to-business field that often considers communication as a by-product, Arcelor Mittal is intent on developing a brand that will bring value to their company and to the industry as a whole."
The brand launch of Arcelor Mittal is set for June.