Standard input-output norms govern permissible input proportions for chemical exports and require imports to match export usage.

Standard Input-Output Norms set permissible input proportions for Quinaldic Acid (A2563) including specified ratios for quinoline and tetrahydrofuran; the SION is suspended by the cited public notice. Applicants must ensure imported goods correspond to the inputs actually used or required in the export product.

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