Nigeria, Sept. 19 -- Leno Adesanya, promoter of Sunrise Power and Transmission Company Limited, failed to provide documentary or witness evidence to support his explanation that a $500,000 payment he made to Douglas Abubakar, the then-wife of former Vice-President Atiku Abubakar, was a legitimate foreign-exchange transaction.

This is according to the Final Award rendered by the ICC on Thursday, rejecting the claims in the arbitration instituted by Sunrise against Nigeria.

The tribunal report showed that the payment was made on 30 January 2003, less than four months before the Mambilla Hydroelectric Power Project contract was allegedly awarded to Sunrise by then Minister of Power and Steel, Olu Agunloye.

The tribunal considered Nigeria'...