Reuters: India's GVK and Australian billionaire Gina Rinehart have secured an environmental permit to build their Alpha Coal project in Australia, moving it a step closer to signing off on a long-delayed $10 billion mine, rail and port project. The GVK Hancock joint venture still needs to finalize a plan with coal rail operator Aurizon Holdings, overcome legal challenges to the project, and sign coal sales agreements before lining up financing for the huge project. "Now that we have our Environmental Authority...