A review conducted by the Irish Department of Enterprise, with assistance from the departments of transport and foreign affairs, found no concrete or definitive evidence that alumina produced by the Aughinish Alumina plant is being supplied to weapons manufacturers in Russia. However, the investigation also did not definitively rule out the possibility that the alumina might eventually reach Russia's weapons industry. Taoiseach Micheál Martin confirmed that he had briefed Ukrainian President Volodymyr Zelenskyy on the findings during a joint press conference in Kyiv.

The report is considered significant due to international scrutiny of Aughinish Alumina, Europe's largest alumina refinery, which is Russian-owned. Alumina is a key raw material for producing aluminum and is not currently subject to EU sanctions on Russia. The department's review, which is nearing completion, highlighted the plant's importance to the European supply chain, with 70% of the raw material for France's Dunkirk refinery coming from Aughinish. The Irish government's concerns also center on protecting the approximately 475 direct jobs at the refinery and nearly 1,000 additional jobs supported in the surrounding region.

Despite the lack of conclusive evidence, President Zelenskyy emphasized that ensuring the material does not reach Russia for military use or to support the war effort should be the "number one task." The Irish government will now share the investigation's findings with the European Commission to examine the issue further, recognizing it as both an Irish and European concern. This engagement with the European Commission is seen as crucial for any potential future steps, especially since any extension of sanctions to include alumina would require agreement at the European level. The company has consistently maintained its compliance with EU laws, sanctions, and export controls, utilizing an independent Swiss auditor to verify that its material is not used for non-civilian purposes in Russia.