HELSINKI (Reuters) - The Finnish government gave the green light on Thursday for state-owned Terrafame to extract and refine uranium in eastern Finland, paving the way for the country to become the European Union's only uranium producer.The announcement by the government confirmed a Reuters report on Wednesday.Terrafame is backed by commodities house Trafigura. It plans to produce uranium at a mine in the Kainuu region that has been producing nickel and other metals for batteries for years, and..