China, India, Japan and South Korea keep Iran's oil industry afloat while Europe and the United States continue their boycott.
Depressed economies in Europe and America, compounded by domestic competition, are driving down the price of Chinese solar panels.
In a two to one vote, the Securities and Exchange Commission decided oil companies must disclose contributions and taxes paid to foreign governments.
Solar-panel makers are seeking ways to produce photovoltaic cells without using hard-to-mine rare earth metals.
India's GVK Power and Infrastructure receives approval for a $10 billion coal and rail project in Queensland.