Invest News DetailReuters - Turkish power producer Gama Energy is eyeing an initial public offering of at least 30-35 percent, while Gama Holding's industry unit is in partnership talks, according to the holding's head of strategic planning. Gama Holding is also planning USD 4 billion worth of energy investment to boost their installed capacity to 3,000 megawatts over the next five years, strategic planning chief Hakan Ozman told a group of journalists.