Exemption condition tied to captive hydrogen generation facility; importers without such facility lose exemption after notified date. The amendment inserts a proviso to Condition No. 4B, condition (ii), in the Annexure to Notification No. 16/2000-Cus., providing that if the importer does not have a captive hydrogen generation facility in his factory, the benefit of the exemption under that notification shall not apply to him on and after the 29th day of November, 2000.