Export rebate on inputs adjusted; specified steel items receive limited invoice price rebate and procurement restricted for dutiable materials. Amendment narrows procurement from the open market by excluding materials on which excise duty has been paid, establishes an invoice price definition tied to direct bank payment by the final product manufacturer, and substitutes the rebate Table: full rebate for most inputs used in export manufacture, but a limited invoice price rebate for specified non alloy steel ingots/billets and hot re rolled steel products where duty has been paid.