Customs exemption for deemed exports permits duty-free import of materials when licence, bond and utilisation conditions are satisfied. Materials imported under an Advance Licence or Advance Authorisation for deemed exports are exempt from basic customs duty and specified additional duties subject to conditions: production of the licence at clearance, specified licence endorsements on description/quantity/value of duty-free materials and final goods, execution of a bond securing duty (plus interest) for non-compliance, evidence of fulfilment of supply obligations within prescribed periods, utilisation of materials in manufacture with restrictions on transfer or disposal, and adherence to permitted ports, airports, ICDs or SEZs.