Import condition for metallurgical coke restricted to pig iron, steel and ferro alloy manufacturers with specified concessional duty. The amendment substitutes S. No. 71 of notification No. 21/2002 to classify metallurgical coke under heading 27.04 and restrict import relief to manufacturers of pig iron or steel using blast furnace or COREX technology and to manufacturers of ferro alloys, prescribing a concessional duty structure for those specified importers under the Customs Act, 1962.