Greece's government is halting activity at a Canadian company Eldorado Gold's gold mine operations in northern Greece because it has violated some terms, Energy Minister Panos Skourletis said on Wednesday. The investment by the Vancouver-based company in the Halkidiki region has been controversial and seen as a test case for Greece's will to attract foreign investment after years of austerity-induced recession. "We are recalling the technical studies, which will result in the halting of operations at Skouries and part of operations in Olympiada.