Officials in the Department of Enterprise, Trade and Employment are examining new information from Gama Construction concerning payments to its employees.
The Turkish construction company was at the centre of controversy last year after Socialist Party TD Joe Higgins accused it of exploiting its migrant workers.
It emerged during the controversy that payments had been made to accounts in the workers' names in Finansbank, in the Netherlands. Turkish employees claimed they had been unaware of the accounts, although this was disputed by the company.
Minister for Enterprise Micheál Martin told the Dáil in February he had been concerned to ensure that all the workers had access to the money in their accounts in Finansbank.
But he said all the information requested by his department had not been provided, despite reminders to Gama's legal advisers and engagement with a public relations company engaged by the Turkish firm.
As a result, the Minister said, he was unable to provide confirmation that all of Gama's workers in Ireland, past and present, had received value for the amounts transferred to those accounts.
It has now emerged, however, that new information has been supplied to the department by the Turkish company.
In a newly published written Dáil reply, Minister of State for Labour Affairs Tony Killeen said a "substantial volume of data" had been presented to the department by Gama in recent days.
"Department officials are currently examining this material," he told Labour deputy Liz McManus, who had asked if the Minister would consider requesting a Garda investigation into the matter. Mr Killeen said a "routine inspection" of Gama by the department's labour inspectorate was currently taking place.