Exemption for precious metal supplies by nominated agencies to exporters subject to export proof and tax recovery if not furnished. Exemption from central tax applies to intra State supply of gold, silver or platinum by a Nominated Agency under the Export Against Supply scheme to a registered person, provided the parties follow the Foreign Trade Policy and Handbook of Procedures; the recipient must export jewellery made from the metal within the prescribed period and submit the shipping bill/bill of export with GSTIN and export invoice within the stipulated timeframe; failing production of export proof, the Nominated Agency must pay the central tax on the unexported quantity with interest.