Four years ago, with the help of a quick divestment and some accounting ingenuity, the Irish government was able to breathe a sigh of relief. This time around, it might not be so lucky. Back in 2018, Oleg Deripaska, a Russian oligarch with close ties to the Kremlin, was sanctioned by the US Department of the Treasury following Russia’s offensive in Crimea. The sanctions applied to both the oligarch, and Rusal, the multinational aluminium giant that he controlled. For the Irish government, the consequences were both clear and ominous. Rusal was the owner of the Aughinish Alumina’s extraction plant in…