Notification of the Ministry of Industries Re: Types and Conditions of Minerals Subject to Authorization for Import/Export to the Kindom or Continetal Shelf Zone B.E. 2560 specifies the procedures for export controlled minerals. The export tax is stipulated by the Notification of the Ministry of Finance No. MF 0518/W 15 Re: Decrese and Exemption of Customs Tariff in Accordance with Article 12 of the Custom Tariff Decree B.E. 2530 (link: http://www.customs.go.th/cont_strc_download_with_docno_date.php?lang=th&top_menu=menu_homepage&current_id=14232b324146505f49464b46)