The ExOne Company Launches Offering of Common Stock by the Company and Certain Selling Stockholders

The ExOne Company Launches Offering of Common Stock by the Company and Certain
Selling Stockholders

NORTH HUNTINGDON, Pa., Sept. 3, 2013 (GLOBE NEWSWIRE) -- The ExOne Company
(Nasdaq:XONE) ("ExOne" or the "Company"), a global provider of
three-dimensional ("3D") printing machines and printed products to industrial
customers, announced today the launch of an underwritten public offering of
2,656,000 shares of its common stock, of which 1,106,000 shares of common
stock will be sold by ExOne and 1,550,000 shares of common stock will be sold
by certain selling stockholders. The underwriters will have an option to
purchase up to an additional 398,400 shares of common stock from certain of
the selling stockholders. ExOne currently anticipates pricing the offering
during the week of September 9, 2013.

FBR will be acting as the book-running manager for the offering. BB&T Capital
Markets, Stephens Inc. and Canaccord Genuity Inc. will be acting as the
co-managers for the offering. When available, copies of the written prospectus
for the offering may be accessed through the Securities and Exchange
Commission's website at, or may be obtained from FBR, Attention:
Syndicate Prospectus Department, 1001 Nineteenth Street North, Arlington,
Virginia 22209, Telephone: 703-312-9500, Email:

A registration statement relating to these securities has been filed with the
Securities and Exchange Commission but has not yet become effective. These
securities may not be sold nor may offers to buy be accepted prior to the time
the registration statement becomes effective. A copy of the registration
statement can be accessed through the website of the Securities and Exchange
Commission at

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

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 other services, including training and technical support, necessary for
purchasers of its machines to print products.

Safe Harbor Regarding Forward-Looking Statements

This news release contains forward-looking statements within the meaning of
Section 27A of the Securities Act of 1933, as amended, and Section 21E of the
Securities Exchange Act of 1934, as amended.

Forward-looking statements are subject to risks, uncertainties and assumptions
and are identified by words such as "expects," "estimates," "projects,"
"typically," "anticipates," "believes," "appears," "could," "plan," and other
similar words. Such statements include, but are not limited to, statements
concerning future revenue and earnings, involve known and unknown risks,
uncertainties and other factors that could cause the actual results of the
Company to differ materially from the results expressed or implied by such
statements, which include our ability to qualify more materials in which we
can print; the availability of skilled personnel; our strategy, including the
expansion and growth of our operations; the impact of loss of key management;
our plans regarding increased international operations in additional
international locations; sufficiency of funds for required capital
expenditures, working capital, and debt service; the adequacy of sources of
liquidity; expectations regarding demand for our industrial products,
operating revenues, operating and maintenance expenses, insurance expenses and
deductibles, interest expenses, debt levels, and other matters with regard to
outlook; demand for aerospace, automotive, energy and other industrial
products; the impact of disruption of our manufacturing facilities or PSCs;
liabilities under laws and regulations protecting the environment; the impact
of governmental laws and regulations; operating hazards, war, terrorism and
cancellation or unavailability of insurance coverage; the effect of litigation
and contingencies; and the adequacy of our protection of our intellectual
property, and other factors disclosed in the Company's Annual Report on Form
10-K and other periodic reports filed with the Securities and Exchange
Commission. Because they are forward-looking, these statements should be
evaluated in light of important risk factors and uncertainties.

Should one or more of these risks or uncertainties materialize, or should any
of ExOne's underlying assumptions prove incorrect, actual results may vary
materially from those currently anticipated. Except as required by law, the
Company disclaims any obligation to update or publicly announce any revisions
to any of the forward-looking statements contained in this news release.

         Nicole McEwen
         Marketing Director
         (724) 765-1328
         John Irvin
         Chief Financial Officer
         (724) 765-1310
         Deborah K. Pawlowski
         Kei Advisors LLC
         (716) 843-3908

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