Mittal Steel Announces Filing of Annual Report with SEC

Regulatory News:

Mittal Steel announces today that it filed its annual report on
Form 20-F with the United States Securities and Exchange Commission
(the "SEC") on April 17, 2007. The annual report on Form 20-F is
available on the SEC's website at

http://www.sec.gov/Archives/edgar/data/1041989/000119312507082765/
d20f.htm

and on Arcelor Mittal's website at

http://www.mittalsteel.com/Investor+Relations/SEC+Filings.htm.
Shareholders of Mittal Steel may request a hard copy of Mittal Steel's
complete 2006 audited financial statements free of charge by
contacting Investor Relations at the following address:

Investor Relations

Arcelor Mittal

19, avenue de la Liberte

L-2930 Luxembourg

Grand Duchy of Luxembourg

About Arcelor Mittal

Arcelor Mittal 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.

Arcelor Mittal 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.

Arcelor Mittal 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.

Arcelor Mittal 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.