“There are no easy answers to this,” Mr Burke warned.

In March, The Irish Times and the Organised Crime and Corruption Reporting Project published an investigation examining Aughinish’s alleged role in supporting Russia’s military industry.

It highlighted claims that the Limerick alumina refinery exported large quantities of alumina to Russia, where it is smelted and used by manufacturers producing weapons deployed on the Ukrainian frontline.

Recent CSO figures appeared to show that 200,619 tonnes, or 83% of Aughinish’s total exports, were shipped to Russia during the first quarter of 2026. However, Mr Burke previously said those figures are "inaccurate".

While alumina is not currently on the EU sanctions list, the Government has indicated it would not push back against future sanctions if alumina produced in Ireland is being used by Russia in its war against Ukraine.

During questions in the Dáil on Tuesday evening, Sinn Féin TD Pa Daly questioned when an investigation by the Department of Enterprise into the matter will be completed.

Mr Burke said that meetings are ongoing, but he does not want to pressure those conducting the review.

In response to Mr Daly’s concerns about protecting jobs in the Limerick plant, Mr Burke warned that there will be many knock-on impacts on the Irish economy.

'Huge amount of jobs'

“The reality here, we have to be clear, if there are products being exported to Russia that are being used in the Russian military complex, action will have to be taken, and there is no easy answers to this,” the minister said.

“There's a huge amount of jobs there. It is responsible for critical raw material. 

"It will have big implications for Europe as well, in the context of their security, and also to our grid as well. About 200,000 homes [are] powered by it, and the Port of Foynes.

“There's a huge amount of implications here, but we have to be to the very forefront as a country who [does not] oppose rule of law and who takes their obligations to citizens and humanitarian rights very, very seriously.”

• Louise Burne, Political Correspondent