Article 11
1.When a licence fixing the refund in advance is used to export a mixture, such mixture shall not be eligible on export for the rate so fixed in advance where the tariff classification of the constituent on which the refund applicable to the mixture is calculated does not correspond to that of the mixture.
2.Where a licence or a certificate fixing the export refund in advance is used to export goods put up in sets, the rate fixed in advance shall apply only to the component which has the same tariff classification as the set.