Quanex Building Products Announces Closing Date to Acquire Edgetech

HOUSTON, March 11, 2011 (GLOBE NEWSWIRE) -- Quanex Building Products Corporation
"Quanex" (NYSE:NX) today announced it will close its acquisition of Edgetech
I.G. Inc. "Edgetech" on or before April 1, 2011. Quanex received the applicable
government approvals, and as previously announced, the $107 million purchase
will be an all cash transaction. Additional information will be disclosed upon
closing.

Edgetech is headquartered in Cambridge, Ohio, and has three manufacturing
facilities (US/UK/Germany) that produce and market a full line of warm edge
insulating glass spacer systems for window and door customers in North America
and abroad. Edgetech's products separate and seal double and triple pane glass
within a window and further act as a thermal barrier to conserve energy. It will
be part of Quanex's Engineered Products Group.

Quanex Building Products is an industry-leading manufacturer of engineered
materials, components and systems serving the US residential window and door
markets. It is an ROIC-driven company that grows shareholder returns through a
combination of organic growth via new products and new programs, and strategic
acquisitions. The Company is listed on the New York Stock Exchange under the
symbol NX. For further information visit the Company's website at
www.quanex.com.

The Quanex Building Products Corporation logo is available at
http://www.globenewswire.com/newsroom/prs/?pkgid=1117

Statements that use the words "expect," "should," "believe," "will," "might," or
similar words reflecting future expectations or beliefs are forward-looking
statements. The statements found above are based on current expectations.
Actual results or events may differ materially from this release. Factors that
could impact future results may include, without limitation, the effect of both
domestic and global economic conditions, the impact of competitive products and
pricing, and the availability and cost of raw materials. For a more complete
discussion of factors that may affect the company's future performance, please
refer to the company's most recent 10-K filing on December 20, 2010, under the
Securities Exchange Act of 1934, in particular the section titled, "Private
Securities Litigation Reform Act" contained therein. The forward-looking
statements are intended to express the company's expectations as of the date of
this release. The company undertakes no obligation to publicly update or revise
any forward-looking statement, whether as a result of new information, future
events or otherwise.

CONTACT: Financial Contact:
Jeff Galow
713-877-5327

Media Contact:
Valerie Calvert
713-877-5305