Lord Hoffman's Tribunal in Singapore said the concession agreement was valid and binding and was not void for any mistake of law or discharged by frustration, according to an exchange filing by the GMR Group.
The Maldives government and Male International Airport Company are jointly liable to pay damages to GMR for loss caused by wrongful repudiation of the agreement to modernise and operate the Ibrahim Nasir International Airport in 2010.
"It has always been our firm belief that the cancellation of our concession agreement amounted to wrongful repudiation by the government of Maldives and the Tribunal has upheld this stand," GMR said in the filing.
GMR had sought damages worth as much as USD 1.4 billion from the Male authorities and said that it is pressing ahead with the claim.
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The Maldives government and airport company have to pay USD 4 million by way of costs within 42 days, according to the filing.
It said the collection of airport development charges and insurance surcharge, as allowed in the concession agreement, was lawful under the Maldivian laws.
The GMR Group has interests in airports (Delhi, Hyderabad and the Philippines) energy, highways, and urban infrastructure.