Arpeggio Acquisition Corporation and Hill International, Inc. Schedule Special Meeting of Arpeggio's Stockholders.

MARLTON, N.J. & NEW YORK -- Arpeggio Acquisition Corporation (OTCBB: APGO, APGOW, APGOU) ("Arpeggio"), a specified purpose acquisition company, and Hill International, Inc. ("Hill"), a worldwide construction consulting firm, announced today that a special meeting of Arpeggio's stockholders has been scheduled for 10:00 am ET on June 28, 2006, at the offices of Arpeggio's legal counsel, Graubard Miller, located at 405 Lexington Avenue, 19th Floor, New York, New York 10174. The Proxy Statement will be mailed on or about June 7, 2006, to Arpeggio stockholders of record as of May 16, 2006.

At the special meeting, Arpeggio stockholders will be asked to consider and vote upon, among other proposals, the previously disclosed Agreement and Plan of Merger dated as of December 5, 2005, as amended, certain amendments to the certificate of organization of Arpeggio, and Arpeggio's 2006 Employee Stock Option Plan. If the merger is approved, Arpeggio will immediately change its name to Hill International, Inc.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, about Arpeggio, Hill and their combined business after completion of the proposed acquisition. Forward looking statements are statements that are not historical facts. Such forward-looking statements, based upon the current beliefs and expectations of Arpeggio's and Hill's managements, are subject to risks and uncertainties, which could cause actual results to differ from the forward-looking statements. The following factors, among others, could cause actual results to differ from those set forth in the forward-looking statements: business conditions, weather and natural disasters, changing interpretations of generally accepted accounting principles; outcomes of government reviews; inquiries and investigations and related litigation; continued compliance with government regulations; legislation or regulatory environments, requirements or changes adversely affecting the businesses in which Hill is engaged; fluctuations in client demand; management of rapid growth; intensity of competition from other providers of project management and construction claims services; general economic conditions; geopolitical events and regulatory changes, as well as other relevant risks detailed in Arpeggio's filings with the SEC, including its report on Form 10-QSB for the quarter ended March 31, 2006. The information set forth herein should be read in light of such risks. Neither Arpeggio nor Hill assumes any obligation to update the information contained in this press release.

Arpeggio and its respective directors and officers may be deemed to be participants in the solicitation of approvals from Arpeggio's stockholders in respect of the proposed transaction. Information regarding Arpeggio's participants and the interests of such participants is contained in the proxy statement.

Additional information

Arpeggio stockholders and other interested parties are urged to read the Proxy Statement regarding the proposed transaction available, together with other Arpeggio filings, at the Securities and Exchange Commission's website (http://www.sec.gov) and also available from Arpeggio without charge, by directing a request to Arpeggio Acquisition Corporation, 10 East 53rd Street, 36th floor, New York, New York 10022.