（a）the importation by an enterprise of products used in or related to its local production, generally or to an amount related to the volume or value of local production that it exports;
（b）the importation by an enterprise of products used in or related to its local production by restricting its access to foreign exchange to an amount related to the foreign exchange inflows attributable to the enterprise; or
（c）the exportation or sale for export by an enterprise of products, whether specified in terms of particular products, in terms of volume or value of products, or in terms of a proportion of volume or value of its local production.