Reuters cited a transport ministry as saying that Oman has awarded US firm Hill International a 2 year contract worth USD 108.5 million to supervise the expansion of Muscat's international airport.
Hill International will replace Danish consulting group COWI after the ministry of transport opted not to renew a contract signed in 2008 to supervise the project.
Oman is expanding the airport's terminal building and the airfield in a project that has been dogged by delays.
Initially, the Sultanate planned to complete the expansion, worth USD 7 billion, by the end of 2012, but has revised its completion date to late 2014.
A transport ministry official, who did not want to be identified said that "COWI are blamed by the some officials for delaying the project by two years and that is the reason why they are being replaced."
Hill International's contract starts from January 1st. Oman is also extending Salalah airport in the south and building new airports in Sohar, Ras Al Hadd and Duqm