Exhibit 99.1

ATI Allegheny Ludlum and J&L Specialty Steel Employees Ratify New
Labor Agreement

    PITTSBURGH--(BUSINESS WIRE)--May 28, 2004--Allegheny Technologies
Incorporated (NYSE:ATI) announced today the United Steelworkers of
America (USWA) represented employees at ATI Allegheny Ludlum and J&L
Specialty Steel ratified a new labor agreement.
    Ratification of the labor agreement permits the company to
complete the acquisition of certain assets of J&L Specialty Steel, LLC
(J&L). The closing of the transaction is expected on June 1, 2004.
    "We're very pleased with the outcome of the ratification vote,"
said Pat Hassey, Chairman, President and Chief Executive Officer of
Allegheny Technologies. "We believe this agreement secures a strong
future for Allegheny Ludlum and its employees, including the new
employees from J&L. The labor agreement facilitates a new work
environment. With new flexible work rules, employees are given broader
responsibility and have the opportunity to become more engaged in the
business.
    "We've entered a new era of cooperative joint effort. The USWA
leadership and its represented employees recognized what needed to be
done to make Allegheny Ludlum more cost competitive. Working together,
we were able to construct an agreement that improves Allegheny
Ludlum's cost structure, while saving jobs and providing a good
compensation package."
    Terry Dunlap, President of ATI Allegheny Ludlum said, "We worked
closely with local union leadership to develop this agreement and we
will continue to work together during implementation to accomplish a
smooth transition. The significant transformation in our plants as
part of the new USWA agreement is critically important to our success.
Production and maintenance job grades will be reduced to 5 from 33.
Due to the broader job descriptions, significant training will be
required for our employees. To accomplish this task, a Joint Hourly
and Salary Training Committee is being established at each plant. We
believe this agreement is a good solution for our employees, retirees,
customers and suppliers."
    Because of workforce restructuring, one-time Transition Assistance
Payments (TAPS) incentives will be offered by ATI to approximately 775
hourly employees who decide to retire over the next 2 1/2 years. The
agreement expires June 30, 2007, and replaces existing labor
agreements at Allegheny Ludlum and at the J&L Midland, PA and
Louisville, OH facilities.

    This news release contains forward-looking statements within the
meaning of the Private Securities Litigation Reform Act of 1995. These
statements are based on management's current expectations and are
subject to uncertainties and changes in circumstances. Actual results
may differ materially from those expressed or implied in the
forward-looking statements. Additional information concerning factors
that could cause actual results to differ materially from those
projected in the forward-looking statements is contained in Allegheny
Technologies' filings with the Securities and Exchange Commission. We
assume no duty to update our forward-looking statements.

    Allegheny Technologies Incorporated (NYSE:ATI) is one of the
largest and most diversified specialty materials producers in the
world, with revenues of approximately $1.9 billion in 2003. The
Company has approximately 8,800 employees world-wide and its talented
people use innovative technologies to offer growing global markets a
wide range of specialty materials. High-value products include
nickel-based and cobalt-based alloys and superalloys, titanium and
titanium alloys, specialty steels, super stainless steel, exotic
alloys, which include zirconium, hafnium and niobium, tungsten
materials, and highly engineered strip and Precision Rolled Strip(R)
products. In addition, we produce commodity specialty materials such
as stainless steel sheet and plate, silicon and tool steels, and
forgings and castings. The Allegheny Technologies website can be found
at www.alleghenytechnologies.com.

    CONTACT: Allegheny Technologies Incorporated
             Dan L. Greenfield, 412-394-3004