Input-output norms require that imported inputs for fumaric acid production match the prescribed proportions and be verified for export use.

Input-output norms set permitted inputs and quantities for manufacturing fumaric acid (99.5% minimum), listing specified raw materials and their weights per unit of product. Applicants must determine applicable input proportions for each resultant product and verify that imported goods are those used or required in the export product, ensuring compliance with prescribed input proportions and accurate import declarations.

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