Metalsa to Acquire Dana Holding Corporation's Structural Products Business

Metalsa will become a top global supplier of structural components to the automotive and commercial vehicle markets

MONTERREY, Mexico, December 16 - Metalsa, S.A. de C.V. has announced that it has agreed to purchase the
structural products business of Dana Holding Corporation (NYSE: DAN). This
acquisition strengthens Metalsa's position as a global supplier providing
structural components to the light and commercial vehicle markets.

Under the terms of the agreement, Metalsa, a subsidiary of Grupo Proeza,
will assume control of 10 Dana manufacturing facilities that produce
structural components for chassis and body structures in light and commercial
vehicles, including accompanying administrative, technical and sales centers.
These facilities are located in Argentina, Australia, Brazil, United States
of America and Venezuela. The transaction also includes Dana's interest in
its Chassis Systems Limited joint venture in the United Kingdom with GKN Auto
Structures. This transaction complements Metalsa's 3,600 employees in India,
Japan, Mexico and the U.S., and adds approximately 2,800 employees to the
Metalsa organization.

"This is a great step for Grupo Proeza and Metalsa as we aim to better
serve our customers around the globe," said Enrique Zambrano, CEO, of Grupo
Proeza. "With this acquisition we expand our manufacturing footprint to
support business in new regions and also bring our long-term commitment to
innovation, quality and customer service to the global structural components
market for light and commercial vehicles."

The combination of both structural products organizations with strong
cultural values, together with the innovative capabilities in all different
regions creates a global competitor with superior performance to provide
long-term commitment to customers worldwide.

"Through the acquisition, we see significant business growth
opportunities as Metalsa continues its vision of global strategic expansion
within mature and emerging automotive markets while strengthening our
relationships with each of our existing and potential customers," said
Leopoldo Cedillo, CEO, Metalsa. "I am convinced that the new company contains
the talent, innovation, and values to exceed the requirements demanded by our
dynamic customer base in this challenging industry."

"We are looking forward to a successful integration process for the
combined team at all of our facilities," he continued. "We are committed to
working with all of our employees globally to combine the strengths of the
new multinational organization to provide the greatest benefits to our
customers," said Cedillo. "The new organization will bring increased
capabilities in product and process innovation unique to the industry."

"Grupo Proeza is committed to the long-term success, continued stability
and health of Metalsa and the generation of value for all of its
stakeholders," said Zambrano.

The transaction is subject to the standard conditions of completion,
pending regulatory approvals.

About Metalsa, S.A. de C.V.

Metalsa, a subsidiary of Grupo Proeza, manufactures structural components
for the light and commercial vehicle markets. Products include chassis frames
and body structural stampings and assemblies for passenger cars and light
trucks as well as side rails and cross members for Class 5-8 commercial
vehicles. The Company currently has presence and operations in India, Japan
and North America. Metalsa distinguishes itself by offering quality, service,
innovation and customization to each customer. Founded in 1956, Metalsa
currently has 3,600 employees. For additional information, please visit
www.metalsa.com.mx.

About Grupo Proeza

Grupo Proeza is a privately-held Mexican group with four main business
areas: Automotive, Foundry, Juices and Fruits, and Information Technology.
Its corporate headquarters are located in Monterrey, Mexico and it employs
4,600 people. The Group holds operations throughout North America and other
regions, and provides services and sells its products around the world. For
additional information, please visit www.proeza.com.mx.

About Dana Holding Corporation

Dana is a world leader in the supply of axles; driveshafts; and
structural, sealing, and thermal-management products; as well as genuine
service parts. The company's customer base includes virtually every major
vehicle manufacturer in the global automotive, commercial vehicle, and
off-highway markets. Based in Maumee, Ohio, the company employs approximately
23,000 people in 26 countries and reported 2008 sales of US$8.1 billion. For
more information, please visit: www.dana.com.

Andrew Schreck, +1-248-894-3836 (cell phone), aschreck at baileypr.com, or Michelle Culver, +1-248-362-4200 x295 (office), mculver at baileypr.com