CHICAGO, Jan. 29 /PRNewswire-FirstCall/ -- Arcelor Mittal Long Carbon North America announces that the company has recently approved a capital investment project at the Steelton, Pa., plant. The investment will improve the quality of continuous-cast blooms and enhance the properties of its rail products to meet the ever-increasing quality requirements of customers. Included in the investment is the installation of electro-magnetic stirring at the bloom caster to improve the internal properties of the steel during solidification and benefit all cast and rolled products produced in Steelton. The project also will enhance the in-line head-hardening unit that was installed in 1994 for the manufacture of premium rail. "Steelton produces premium rails that provide the quality and wear resistance necessary for demanding environments and critical track components," said the plant's general manager, David P. Wirick. "The announced improvements will further enhance our ability to meet customers' needs of today and tomorrow for head-hardened rails with higher hardness at increased depths." The investment has been designed to meet or exceed the needs of customers for the foreseeable future. The planned upgrades will be completed in 2007, enabling Steelton to provide the product enhancements for its customers' 2008 rail programs. Arcelor Mittal's investment underscores its ongoing commitment to providing the highest-quality steel products to meet the requirements of today's steel consumers. About Steelton The Steelton plant, a former Bethlehem Steel operation along the Susquehanna River in eastern Pennsylvania, can produce 1 million tons of steel annually. Products include high-quality rails, specialty ingots, blooms, and bars for the railroad, forging, and machinery markets. It employs about 600. About Arcelor Mittal Arcelor Mittal is the world's number one steel company, with 330,000 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 the first nine months of 2006 show combined revenues of USD 65.4 billions, with approximate production capacity of 130 million tonnes a year, representing around 10 per cent of world steel output. Arcelor Mittal is currently listed under the legal entity Mittal Steel NV 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. DATASOURCE: Arcelor Mittal CONTACT: Bill Steers, +1-312-899-3817, or David C. Allen, +1-312-899-3692, both of Arcelor Mittal Americas Communications

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