Input-output ratio requirement: imports must match permitted proportion to produce exported benfotiamine under FTP SION rules. Standard Input-Output Norms under the Foreign Trade Policy designate SION A-3694 for Benfotiamine, permitting import of Thiamine Hydrochloride in a prescribed proportion for use in the manufacture of the exported product; applicants must ensure imported goods are the inputs actually used or required in the specified export product and input proportions are determined for resultant product manufacture.