core sector communique

ArcelorMittal appoints Peter Kukielski to its Group Management Board and Philippus F. (Phil) Du Toit to its Management

Luxembourg, 22 December 2009 - ArcelorMittal today announces the appointment of Peter Kukielski to its Group Management Board (GMB), with responsibility for the Group's global mining operations, effective 1st January 2010.

Peter Kukielski joined ArcelorMittal in December 2008 as Senior Executive Vice President and Head of Mining, with responsibility for driving further development of ArcelorMittal's mining business. Prior to joining ArcelorMittal, Mr. Kukielski held senior positions at a number of mining companies, notably at Teck  Resources, Noranda/Falconbridge (now Xstrata) and Rio Algom (now BHP Billiton).

ArcelorMittal also announces appointment of Philippus F. (Phil) Du Toit to its Management Committee with effect from 1st January 2010. Mr. Du Toit has been Executive Vice President (EVP) of ArcelorMittal and Head of Mining Projects and Exploration since November 2008 and he reports to Peter Kukielski. He has extensive mining experience and prior to moving to ArcelorMittal, he held a senior position at leading mining company Vale.

Lakshmi N. Mittal, Chairman and CEO of ArcelorMittal, commented: "Peter has shown the strong leadership and expertise we would expect from a member of ArcelorMittal's Group Management Board. He successfully managed our mining business during one of the most challenging periods for the steel industry in recent history. Through his work we have been able to strengthen the foundations for ArcelorMittal to become a truly integrated global steel production and mining business. I am pleased to welcome him to the GMB and I look forward to his continued contribution to the Company's success. I also welcome Phil to our Management Committee; his inputs towards the ongoing development of our mining activities will be important."

About ArcelorMittal

ArcelorMittal is the world's leading steel company, with operations 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 2008, ArcelorMittal had revenues of $124.9 billion and crude steel production of 103.3 million tonnes, representing approximately 10 per cent of world steel output.

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