GasAtacama, energy provider to metal producers in Chile's Atacama desert, has lined up eight potential U.S. natural gas suppliers for a proposed import terminal on its Pacific Coast, but uncertainty about energy demand has delayed deals, CEO Rudolf Araneda told Reuters on Thursday. GasAtacama plans to build a $350 million offshore liquefied natural gas (LNG) import terminal that would take shipments of the fuel to help create 500 megawatts of electricity for power-hungry miners in the mineral-rich north.