The ExOne Company Announces Closing of Initial Public Offering and Exercise of Underwriters' Over-Allotment Option

The ExOne Company Announces Closing of Initial Public Offering and Exercise of
Underwriters' Over-Allotment Option

NORTH HUNTINGDON, Pa., Feb. 12, 2013 (GLOBE NEWSWIRE) -- The ExOne Company
(Nasdaq:XONE), a global provider of three-dimensional ("3D") printing machines
and printed products to industrial customers, today announced the closing of
its initial public offering, including the exercise in full of the
over-allotment option, of 5,483,333 shares of its Common Stock and 611,667
shares of Common Stock from Rockwell Holdings Inc. ("RHI"), an affiliate of S.
Kent Rockwell, ExOne's Chairman and Chief Executive Officer, at a price to the
public of $18.00 per share. The gross proceeds to ExOne from the offering were
$98.7 million before deducting underwriting discounts and commissions and
other offering expenses.

FBR Capital Markets & Co. acted as sole book runner for the offering and BB&T
Capital Markets, a division of BB&T Securities, LLC, and Stephens Inc. acted
as co-managers. 

A registration statement related to these securities has been filed with the
SEC and declared effective on February 6, 2013. The offering is being made
only by means of a prospectus. A copy of the prospectus may be obtained from
the SEC's website at or from the offices of FBR Capital Markets &
Co. at; BB&T Capital Markets at; or Stephens Inc at

This press release shall not constitute an offer to sell or a solicitation of
an offer to buy, nor shall there be any sale of these securities in any state
or jurisdiction in which such an offer, solicitation or sale would be unlawful
prior to registration or qualification under the securities laws of any such
state or jurisdiction.

About ExOne

ExOne is a global provider of 3D printing machines and printed products to
industrial customers. ExOne's business primarily consists of manufacturing and
selling 3D printing machines and printing products to specification for its
customers using its in‐house 3D printing machines. ExOne offers pre‐production
collaboration and prints products through Production Service Centers, which
are located in the United States, Germany and Japan. ExOne builds 3D printing
machines at its facilities in the United States and Germany. ExOne also
supplies the associated products, including consumables and replacement parts,
and services, including training and technical support, necessary for
purchasers of its machines to print products.

The ExOne Company logo is available at

         Nicole McEwen
         Marketing Director
         (724) 765-1328
         John Irvin
         Chief Financial Officer
         (724) 765-1310

The ExOne Company logo
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