Each of the units, to be built at the Estaleiro Atlantico Sul shipyard, will have "six large thrusters and six Bergen diesel generator sets," Rolls-Royce said in a statement.
More than a year has passed since EAS won the $4.63 billion contract from Petrobras-backed entity Sete Brasil in 2011.
But the facility has faced a range of delays and setbacks during its ramp-up.
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