Any potential tariffs on polysilicon imports could drive up the cost base and impact the profitability of these companies.

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U.S. producers account for over half of the value of U.S. imports, which means there is great potential to increase their competitiveness by improving their access to imports.

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That would create still more jobs, another quarter of a million in the energy industry alone, and the potential for freeing America from the cost of energy imports from the Middle East, and other hostile sources.

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But it wasn't until earlier this month, when a potential customer, impressed with what Peterson could dig up about ethanol imports, asked Peterson about the iPhone.

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The recent news Iran has halted oil shipments to some European countries, to pre-empt an EU ban on Iranian oil imports, has been met with increasing focus in the media on the potential for Israel or U.S. military action against Iran.

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The extent of the potential damage can be gauged from the fact that more than one-third of American clothing imports now come from Asia.

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Energy Secretary Ed Davey said shale gas was a promising new potential energy resource for the UK. It might contribute significantly to energy security and substitute for imports which are increasing as North Sea gas is decreasing.

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