Standard input output norms for guanine govern permissible input proportions and require imported inputs be used in exports.

Standard Input Output Norms prescribe specified input items and per unit input proportions for guanine and allied chemical products, noting suspension of the guanine entry by public notice. Import applicants must ensure imported goods match the inputs required for the declared export product, and authorities will determine permissible input proportions applicable to manufacture and export compliance.

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