The Italian Culture Minister Dario Franceschini said the government would take legal action against the company unless it immediately withdraws the campaign.
Lawyers for the victims of the cholera epidemic in Haiti have given the United Nations a 60-day deadline to open talks about billions of dollars of compensation or face legal action.
But Somchai Homla-or, a member of the Thai Lawyers Society that assisted the groups, says years of delay and rising pollution from the estates had led the communities to take the legal action.