He said in July it had been impossible to prove Rusal’s assertion that alumina from Ireland is only used to make aluminum for export from Russia.
Even if it were only used in aluminum exports (and it's not), cutting off another source of it would bring the Russian government closer to needing to ration its remaining supply between military and civilian goods.
“It’s too big a business for them to close it down,” said retired docker Joe Hanlon. “Too much employment for the government to get involved.”
Given that the factory has plenty of non-Russian customers, bringing up the notion of 'closing it down' is needlessly muddying the waters in favor of retaining Russia as a client.