ArcelorMittal Announces Change in Its Internal Assurance Leadership

Regulatory News:

ArcelorMittal today announces that Arvind Chopra, Vice President
of Internal Assurance, is leaving the Company to join Price Waterhouse
Coopers as a partner in London and will be replaced by Francis
Lefevre.

Mr. Chopra held this position - which is of paramount importance
from a Corporate Governance, Compliance and internal control
perspective - for over seven years. The appointment of Mr. Lefevre has
been approved by the Audit Committee of ArcelorMittal's Board of
Directors.

Like Mr. Chopra previously, Mr. Lefevre will also be the Secretary
to the Audit Committee. Over the past seven years, Mr. Chopra has been
responsible for building Corporate Governance processes, facilitating
management's performance of risk assessments, evaluating the Company's
internal controls and leading the internal audit function of the
Company. During this period Mr. Chopra has also significantly
contributed to the Company's compliance program. A former partner with
KPMG, Mr. Chopra is a seasoned professional in these matters.

Arvind Chopra said: "It has been an extremely exciting and
enriching period I have spent at ArcelorMittal. I have truly enjoyed
working in this both demanding and stimulating environment and would
like to thank all my colleagues for their support".

Aditya Mittal, CFO, said: "I warmly thank Arvind for the excellent
job he has accomplished at ArcelorMittal. Arvind has played a key role
in establishing world class standards in our Corporate Governance
processes, our internal control structures and in our compliance and
internal auditing standards".

Lakshmi Mittal, CEO, said: "Through the years Arvind has made very
significant contributions at ArcelorMittal. During the extremely fast
growth of the Company he ensured that our Corporate Governance and
internal control environment keep pace with our strong development. I
thank him for his dedication and wish him all possible success in his
new role with Price Waterhouse Coopers. I also take this opportunity
to extend the fullest support of the management to Francis in his new
role."

Francis Lefevre, who takes over the responsibility of Internal
Assurance at ArcelorMittal, joined the steel industry in 1992 at the
Liege (Belgium) works as an internal auditor, after working as an
audit director at Deloitte-Coopers for ten years. He was appointed
Financial Director of the Liege unit in 2000, and, within Arcelor and
ArcelorMittal, has held the position of Senior Vice President Business
Risk Control since 2005.

About ArcelorMittal

ArcelorMittal is the world's number one steel company, with
320,000 employees in more than 60 countries. The company brings
together the world's number one and number two steel companies,
Arcelor and Mittal Steel.

ArcelorMittal is the leader in all major global 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. An industrial
presence in 27 European, Asian, African and American countries exposes
the company to all the key steel markets, from emerging to mature,
positions it will be looking to develop in the high-growth Chinese and
Indian markets.

ArcelorMittal key pro forma financials for 2006 show combined
revenues of USD 88.6 billions, with a crude steel production of 118
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 (MTS) and
Valencia.