To dig up the raw material, process it, convert from oxide to fluoride to metal to iodide, to mix it with mercury, make their own light bulbs, all of this within each of the different 192 sets of national boundaries.

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This process requires raw material that is grouped together based on a specific criteria.

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The raw material, in the matching process, is a mass of stated preference: your desire or intolerance for certain traits and characteristics.

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Silicon, the major raw material used in the manufacture of solar panels, requires an energy-intensive process to turn it into solar-grade silicon.

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