GST on Old Gold Jewellery purchased & Sold after melting & HSN Code

In re White Gold Bullion Private Limited (GST AAR Karnataka) Whether the applicant purchasing second hand gold in the form of jewellery / parts of jewellery, from unregistered individuals and sells to registered / unregistered dealers, after melting the same, in the form of lumps / irregular shapes of gold, without changing the nature, (i.e.,) Gold remains gold, has to pay GST on the margin difference between the sale price and purchase prices as stipulated in Rule 32(5) of CGST Rules, 2017? The applicant purchasing second hand gold in the form of jewellery / parts of jewellery, from unregiste...