ArcelorMittal Partners with the World's Leading Design Software Editors to Promote Its Construction Products

Business Wire, Nov 17, 2007

LUXEMBOURG -- Regulatory News:

ArcelorMittal, the world's largest steel company, announces that it has signed agreements with four leading editors of programs used in building and construction to include ArcelorMittal predesign software in their products. These partnerships, the first of their kind, will further promote the use of ArcelorMittal products and solutions by the construction industry.

The four editors, Nemetschek AG (Germany) and its subsidiary SCIA (Belgium), Tekla Corporation (Finland), Graitec (France) and Robobat (France), are the world's leading editors of design software used by building and construction professionals.

The agreements were negotiated and signed by ArcelorMittal's Building and Construction Support (BCS), a global marketing platform of ArcelorMittal's Steel Solutions and services, and the Research Center of its Long Carbon Europe division. The technologies involved, which seamlessly integrate computer-based design and materials calculation, will offer millions of architects and engineers over the world in-depth knowledge of both standard and niche products with respective solutions designed by ArcelorMittal, such as cellular beams, composite beams and floor systems. They will also grant access to ArcelorMittal software modules for the modeling, designing and detailing of structures.

Furthermore, ArcelorMittal and its software partners have agreed to inform their respective customers on the integration of those pre-design software tools and to work out campaigns for cross promotion of respective technologies. ArcelorMittal and its partners will share technology on design, cost estimation and Eurocodes regulations.

ArcelorMittal expects these agreements to increase the use of steel in construction and generate added value for the whole steel branch. Pierre Bourrier, head of BCS, said: "These agreements are a fantastic opportunity to present ArcelorMittal's range of products and solutions to the widely spread construction design and constructors communities".

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 and Valencia. (MTS)

About Nemetschek

The Nemetschek Group is a leading international IT company in the AEC sector (Architecture, Engineering, Construction). The software company develops integrated solutions for the complete life cycle of buildings and real estate. The company's products are currently used by more than 270,000 companies in 142 countries and in 16 languages to optimize the complete building creation and management process in terms of quality, cost and time. Nemetschek was founded in 1963 by Prof. Nemetschek and has more than 1,000 employees worldwide and a turnower of 140 millions euros (2007). www.nemetschek.com

About Tekla Corporation

TEKLA, founded 1966 in Finland, is the world leader in software for steel structure modeling. The group's objective is to become the leader in BIM (Building Information Modeling) software and design concept (4D, erection, manintenance and use). TEKLA develops and markets software packages and services for municipalities and for customers whose core businesses are construction and energy distribution. TEKLA has a global presence with nearly 400 employees in 12 countries and customers in more than 80 countries. The group's annual turnover is 50 million euros (31% growth in 2006). www.tekla.com

About Graitec

GRAITEC, created more than 20 years ago, has been committed to developing high performance computer assisted design and analyses software for the construction industry. Over 10,000 customers now rely on GRAITECs' global suite of fully compatible and integrated products covering design and detailing for the reinforced concrete and steel construction industry (based on Autodesk platform). Graitec is located in France, USA, Canada, Germany, Romania, Czech Republic, Spain and United Kingdom. It employs 220 people and 80 are working for R&D. The turnower is 20 millions euros (2007). www.graitec.com