Hill International Selected as Project Manager for Two Major High-Rise Developments in Qatar Doha, Qatar - June 22, 2006 - Hill International, the worldwide construction consulting firm, has announced that it has been awarded two contracts to provide project and construction management services for the twin Palm Towers and West Bay Lagoon Plaza developments in Doha, Qatar. The two contracts have a combined value to Hill of approximately QAR26.3 million ($7.2 million). The Palm Towers consists of two 57-story residential and office towers as well as a shopping center. Located near the Doha Corniche, and adjacent to the Al Bidda Tower currently under construction, the Palm Towers will contain approximately 254,000 square meters (2.73 million square feet) of space. Total duration of the construction phase is 36 months. The West Bay Lagoon Plaza consists of two 35-story residential and office towers as well as a shopping center. Located near the Ritz Carlton Hotel, and adjacent to the Grand Hyatt Hotel currently under construction, the West Bay Lagoon Plaza will contain approximately 275,000 square meters (2.96 million square feet) of space. Total duration of the construction phase is expected to be 30 months. The local firm of MZ & Partners is the architect for both projects. "These impressive towers will contribute to the rapidly-changing skyline of Doha," said Raouf S. Ghali, President of Hill's International Project Management Group. "Hill is very excited to have been selected to manage such ambitious projects," Ghali added. Hill International, with over 900 employees in 26 offices worldwide, provides program management, project management, construction management and construction claims services. Engineering News-Record magazine recently ranked Hill as the 17th largest construction management firm in the United States. As previously announced, Hill and Arpeggio Acquisition Corporation (OTCBB:APGO, APGOW, APGOU) have entered into a merger agreement pursuant to which Hill will merge with and into Arpeggio. This transaction is expected to close on June 28, 2006. For more information on Hill, please visit our website at www.hillintl.com. .