Standard Input-Output Norms require imported inputs to match specified proportions used in export product manufacturing.

Standard Input-Output Norms require that specified input-output ratios govern permissible use of imported chemicals in export manufacturing; applicants must ensure that the goods declared and imported correspond to the inputs used or required in the export product, in accordance with SION proportions (for example, mercuric chloride 1 kg yields mercury 0.770 kg).

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