August 19, 2008

ArcelorMittal Share Buyback Program: Status Report As of 15 August 2008

Regulatory News:

ArcelorMittal, under the new share buy-back program as announced on 12 December and on 18 December 2007, hereby announces that it has repurchased 1,500,000 shares from 11 August until 15 August 2008.

The shares were repurchased at an average price of EUR 52.0063 and for a total amount of EUR 78,009,450.00.

For more information on the share buy-back program see the Share Information section under Investors & Shareholders on the ArcelorMittal website at (

About ArcelorMittal

ArcelorMittal is the world's leading steel company, with over 320,000 employees in more than 60 countries.

ArcelorMittal is the leader in all major global steel markets, including automotive, construction, household appliances and packaging, with leading R&D and technology, as well as sizeable captive supplies of raw materials and outstanding distribution networks. With an industrial presence in over 20 countries spanning four continents, the Company covers all of the key steel markets, from emerging to mature.

Through its core values of sustainability, quality and leadership, ArcelorMittal commits to operating in a responsible way with respect to the health, safety and wellbeing of its employees, contractors and the communities in which it operates. It is also committed to the sustainable management of the environment and of finite resources. ArcelorMittal recognises that it has a significant responsibility to tackle the global climate change challenge: it takes a leading role in the industry's efforts to develop breakthrough steelmaking technologies and is actively researching and developing steel-based technologies and solutions that contribute to combat climate change.

In 2007 ArcelorMittal had revenues of USD 105.2 billion and crude steel production of 116 million tonnes, representing around 10 per cent of world steel output.

ArcelorMittal is listed on the stock exchanges of New York (MT), Amsterdam (MT), Paris (MTP), Brussels (MTBL), Luxembourg (MT) and on the Spanish stock exchanges of Barcelona, Bilbao, Madrid and Valencia (MTS).

For more information about ArcelorMittal visit: