Metallurgical-grade silicon (MSG or MG-Si) is silicon of relatively high purity in the order of 98% or higher which is used extensively in the metallurgical industry. MGS is not considered pure enough to be used for electronics and must be further purified into either extremely pure electronic-grade silicon which can be used for integrated circuit fabrication or slightly purer upgraded metallurgical-grade silicon which can be used in cheaper electronic devices such as solar cells and liquid crystal displays.

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