<h1>Input-output compliance requires imported inputs to match declared export use under FTP, with proportion determination enforced.</h1> The FTP prescribes input-output norms for Expando Foundry Flux (A1105), listing constituent inputs and quantities and noting suspension of the SION entry; it mandates determination of permissible input proportions and requires applicants to ensure imported goods correspond to those used or required in the export product.