Three leases by serial Ghanaian businessman, Ibrahim Mahama's Exton Cubic company has declared as invalid by the country's highest court, the supreme court.

According to the apex court, the company failed to comply with the compulsory statutory provisions of the Minerals and Mining Act as well as Article268 of the1992 Constitution, thus, cannot be deemed to have a “mining right as required by law”.

The supreme court ruling added that the leases were granted in violation of the 1992 Constitution and Section 12 of the Minerals and Mining Act, Act 703.

On 8 February 2019, the High Court held that the then-Lands and Natural Resources Minister, Mr John Peter Amewu, lacked locus in revoking the licences granted Exton Cubic for bauxite prospecting.

Subsequently, the Attorney General, via an ex-parte application, prayed the topmost court to overturn the lower court’s ruling with the reason that it undermined the efficient administration of justice.